From 3a52aabe9022f63b5613e9157d4a2755a2bac213 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Mon, 23 Feb 2026 13:52:47 +0800
Subject: [PATCH 01/46] Add Generic Event Sourcing and ReadModel Requirements
 Documentation

- Introduced a comprehensive requirements document for Generic Event Sourcing and Index-Capable ReadModel, outlining the architecture, goals, and constraints.
- Defined key concepts such as State, ReadModel, and Provider capabilities, along with their interactions and expected behaviors.
- Specified functional and non-functional requirements, including event sourcing abstractions, state event models, and read model store semantics.
- Established guidelines for provider capabilities, metadata-driven indexing, and developer experience paths for integrating read models.
- Clarified the scope of the implementation, including in-scope and out-of-scope items, ensuring a clear understanding of the project's boundaries.
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+# Generic Event Sourcing + Index-Capable ReadModel 需求文档（Document/Graph 双索引抽象）
+
+## 1. 文档元信息
+- 状态：Draft
+- 目标版本：v1
+- 适用仓库：`aevatar`
+- 编写日期：2026-02-22
+- 本次更新：去具体后端绑定，改为 ReadModel Provider 能力模型
+
+## 2. 背景与问题
+当前仓库已具备：
+- 基础 Event Sourcing 抽象：`IEventStore`、`EventSourcingBehavior<TState>`
+- 有状态 Agent 抽象：`GAgentBase<TState>` + `IStateStore<TState>`
+- 投影读模型抽象：`IProjectionReadModelStore<TReadModel, TKey>`
+- InMemory 默认实现
+
+当前缺口：
+- 缺少“默认 State -> ReadModel”镜像能力，开发者需要手写大量投影胶水。
+- ReadModel 存储语义与具体后端边界不清晰，容易把架构绑定到 Elasticsearch。
+- 缺少“ReadModel 元数据 -> 索引能力”统一模型，无法做后端能力匹配。
+- 缺少对两类索引形态的统一抽象：Document Index（Elasticsearch-like）与 Graph Index（Neo4j-like）。
+- `EventEnvelope` 与 EventStore 持久化事件边界不清晰。
+- persisted event 手写成本高，影响 Event Sourcing 落地。
+
+## 3. 目标
+1. Event Sourcing 与 Snapshot 语义保持不变。
+2. 默认提供 State -> ReadModel 镜像投影（开发者无感接入），且 ReadModel 对开发者可选。
+3. ReadModel 存储采用 Provider 抽象，不绑定具体后端。
+4. ReadModel 元数据可描述“索引诉求”；仅索引能力后端可承接。
+5. 同时支持两类索引 Provider：Document Index 与 Graph Index。
+6. Elasticsearch 与 Neo4j 作为首批适配器，而不是架构绑定点。
+7. EventStore 默认存储状态语义事件，由框架自动生成。
+8. `EventEnvelope` 仅用于运行时处理与传播，不作为 EventStore 权威事件模型。
+9. CQRS 各层采用“通用壳 + 领域插件”模式：`Application/Infrastructure/Host` 可通用，`Domain` 保持领域语义。
+
+## 4. 非目标
+- 不在本期引入新的业务编排模型。
+- 不在本期实现跨存储分布式事务。
+- 不在本期实现所有后端 Provider（先完成 InMemory + Elasticsearch + Neo4j）。
+- 不在本期定义完整 ILM/冷热分层策略（仅保留扩展位）。
+- 不在本期把领域不变量抽象成通用模板（领域规则仍由业务模块定义）。
+
+## 5. 架构约束（强制）
+- 严格分层：`Domain / Application / Infrastructure / Host`。
+- 统一投影链路：默认镜像与自定义投影都必须走同一 Projection Pipeline。
+- 读写分离：`Command -> Event`、`Query -> ReadModel`。
+- 中间层不得以进程内映射充当跨节点事实源。
+- 上层依赖抽象：业务代码不得依赖具体后端 SDK（如 Elasticsearch Client）。
+- Provider 能力校验必须在启动期执行，避免运行期隐式降级。
+- 分层通用化边界：`Application/Infrastructure/Host` 提供通用框架能力；`Domain` 仅通过契约插件接入，禁止把领域语义硬编码进通用层。
+
+## 6. 术语
+- `State`：`GAgentBase<TState>` 领域状态，由 `IStateStore<TState>` 持久化快照。
+- `ReadModel`：查询视图模型。
+- `Runtime Envelope`：运行时消息载体（`EventEnvelope`）。
+- `Persisted State Event`：EventStore 中的状态语义事件。
+- `ReadModel Provider`：`IProjectionReadModelStore<TReadModel, TKey>` 的具体后端实现。
+- `Index-Capable Provider`：声明支持索引建模能力（mapping/settings/alias）的 Provider。
+- `Document Index Provider`：面向文档索引模型（索引、mapping、alias）。
+- `Graph Index Provider`：面向图索引模型（节点、关系、约束、路径查询优化）。
+
+## 7. 方案总览
+
+### 7.1 默认主链路
+`Agent State` -> `StateMirrorProjection` -> `IProjectionReadModelStore<TReadModel, TKey>` -> `ReadModel Provider`
+
+补充：
+- 同一 `State` 可以扇出到多个 `ReadModel`（一对多）。
+- 每个 `State/ReadModel` 绑定由一个“最终写入 owner projector”负责落库。
+
+### 7.2 Provider 能力闸门
+- ReadModel 元数据声明索引诉求（如主键、字段类型、索引别名）。
+- Provider 声明能力（如 `SupportsIndexing`、`IndexKind`、`SupportsAliases`）。
+- 启动期进行“ReadModel 诉求 vs Provider 能力”匹配：
+  - 匹配成功：注册并运行。
+  - 不匹配：按策略 fail-fast（默认）或显式禁用该 ReadModel。
+
+路由规则补充：
+- `IndexKind` 对 ReadModel 是可选项（`Auto/None`）。
+- 当仅有一个索引型 Provider 可用时，可不标记 `IndexKind`，走默认路由。
+- 当存在多个候选 Provider 时，必须通过 `IndexKind` 或显式绑定配置完成消歧，否则启动 fail-fast。
+
+### 7.2.1 索引类型统一抽象
+- `IndexKind=Document`：用于 Elasticsearch-like 后端。
+- `IndexKind=Graph`：用于 Neo4j-like 后端。
+- 统一抽象层负责：
+  - 元数据标准化（ReadModel Index Profile）
+  - 能力协商与注册校验
+  - 将通用 ReadModel 变更翻译为后端特定写操作
+
+### 7.3 开发者体验目标
+- 最小路径：仅定义 `State`（可不定义 `ReadModel`）。
+- 默认路径：不定义 `ReadModel` 时，框架可提供默认读视图（Default ReadModel）。
+- 进阶路径：定义自定义 `ReadModel` 并可替换 `IStateToReadModelProjector<TState, TReadModel>`。
+- 运维路径：通过元数据驱动索引初始化（仅限索引型 Provider）。
+
+### 7.4 EventEnvelope 与 EventStore 边界
+- 运行时仍以 `EventEnvelope` 处理与分发。
+- EventStore 权威事件必须是 `Persisted State Event`。
+- 原始 `EventEnvelope` 可选旁路落库用于审计，但不参与回放权威语义。
+
+### 7.5 全层通用化模型（Generic CQRS Kernel）
+- `Domain`：定义业务状态、业务命令、业务查询、领域规则（不可被框架语义吞并）。
+- `Application`：提供通用 Command/Query 编排管道（校验、幂等、权限、审计、事务边界、投影触发）。
+- `Infrastructure`：提供可替换存储与索引 Provider（EventStore/StateStore/ReadModelStore）。
+- `Host`：提供统一模块装配、能力协商、配置绑定、健康检查。
+- 领域模块仅需注册 handler/projector/readmodel 契约，即可接入通用内核。
+
+ReadModel 可选模式：
+- `State-only`：仅写侧或最小查询场景，不要求开发者定义 ReadModel。
+- `Default ReadModel`：框架基于 State 生成默认读视图。
+- `Custom ReadModel`：开发者定义专用查询模型与投影逻辑。
+
+## 8. 范围（Scope）
+
+### 8.1 In Scope
+- Provider 抽象下的通用 ReadModel Store 语义。
+- 默认 State 镜像投影（可替换）。
+- ReadModel 元数据模型与能力匹配规则。
+- Elasticsearch 适配器（Document Index Provider）实现。
+- Neo4j 适配器（Graph Index Provider）实现。
+- 通用 Application Service 管道抽象（Command/Query 通用壳）。
+- 通用 Host 模块装配抽象（模块注册与能力协商）。
+- DI 扩展：Provider 切换、默认镜像器注册、自定义覆盖。
+- Workflow Projection 接入。
+- 单元、集成、分布式一致化测试。
+
+### 8.2 Out of Scope
+- 全量后端 Provider 一次性交付。
+- Elasticsearch 生产运维平台自动化。
+
+## 9. 功能需求（Functional Requirements）
+
+### FR-1 Event Sourcing 抽象
+- append-only + `expectedVersion` 并发校验 + `fromVersion` 回放查询。
+- 事件记录结构包含：`streamId`、`eventId`、`eventType`、`eventData`、`version`、`timestamp`、`metadata`。
+
+### FR-2 Persisted State Event 模型约束
+- EventStore 权威事件必须只表达状态变更语义。
+- 不得耦合运行时路由字段（例如 `Direction`、转发链）。
+- 原始 envelope 不作为回放权威源。
+
+### FR-3 自动状态事件生成（开发者无感）
+- 框架在统一处理管道内自动生成 `Persisted State Event`。
+- 一次处理结束后基于 State 变更检测决定是否 append。
+- 无状态变化不得产生冗余事件。
+- 支持 `Snapshot` / `Delta` 策略扩展。
+
+### FR-4 有状态 Agent 与 Snapshot
+- `GAgentBase<TState>` 继续通过 `IStateStore<TState>` 完成 Load/Save。
+- 启用 Event Sourcing 不改变 `IStateStore<TState>` 作为快照通道的语义。
+
+### FR-5 通用 ReadModel Store（Provider 模式）
+- 兼容 `IProjectionReadModelStore<TReadModel, TKey>`：
+  - `UpsertAsync`
+  - `MutateAsync`
+  - `GetAsync`
+  - `ListAsync`
+- API 语义不绑定具体后端。
+
+### FR-6 Provider 能力声明与匹配
+- 定义 Provider 能力抽象（至少包含）：
+  - `SupportsIndexing`
+  - `IndexKind`（`Document` / `Graph`）
+  - `SupportsAliases`
+  - `SupportsSchemaValidation`
+- ReadModel 注册时执行能力匹配。
+- 对声明索引诉求的 ReadModel，必须由 `SupportsIndexing=true` 的 Provider 承接。
+- 当 ReadModel 显式声明 `IndexKind` 时，Provider 必须类型匹配。
+- 当 ReadModel 未声明 `IndexKind` 时，允许自动路由；若候选 Provider 不唯一则必须显式消歧。
+
+### FR-7 默认 State 镜像投影
+- 提供默认 `IStateToReadModelProjector<TState, TReadModel>`：
+  - 默认策略：同名字段映射 + 可配置忽略字段。
+  - 字段不匹配可由映射配置或自定义 projector 覆盖。
+- 当开发者未定义 `ReadModel` 时，允许落到框架默认读视图（Default ReadModel）。
+
+### FR-7.1 ReadModel 可选化
+- 开发者不定义 `ReadModel` 时系统必须可运行（至少支持 `State-only` 模式）。
+- 可通过配置选择：`State-only` / `Default ReadModel` / `Custom ReadModel`。
+- 在 `State-only` 模式下，若调用依赖 ReadModel 的查询端点，应返回明确错误或能力不可用响应（按统一错误模型）。
+
+### FR-8 自定义投影替换机制
+- 允许业务侧通过 DI 替换默认镜像器。
+- 同一 `State/ReadModel` 绑定仅允许一个“最终写入 owner projector”。
+- owner projector 内部允许组合多个 reducer/applier/module 协同完成映射与聚合。
+- `State -> ReadModel` 为一对多：一个 State 可以对应多个 ReadModel，但每个 ReadModel 绑定仍必须只有一个最终写入 owner。
+- 优先级：显式业务注册 > 默认注册。
+
+### FR-9 ReadModel 元数据驱动索引（能力感知）
+- ReadModel 元数据可声明：
+  - 通用：索引名/前缀、主键字段、版本、标签
+  - Document Profile：字段 mapping（keyword/text/date/numeric/...）、settings、alias
+  - Graph Profile：节点标签、关系类型、关系方向、唯一约束字段、可选索引提示
+- 仅索引型 Provider 执行 metadata 建索引逻辑。
+- 非索引型 Provider 遇到索引诉求时按策略 fail-fast（默认）。
+- `IndexKind` 未声明时，可由 Provider 能力自动推断；推断不唯一时必须显式绑定。
+
+### FR-10 双索引适配器实现
+- 必须提供 Document Index 适配器（Elasticsearch-like）。
+- 必须提供 Graph Index 适配器（Neo4j-like）。
+- 两者都必须遵循统一抽象层，不得在业务层分叉接口。
+- 双适配器是平台能力要求，不代表每个 ReadModel 都必须显式标记 `Document/Graph`。
+
+### FR-11 Workflow Projection 接入
+- `WorkflowExecutionReport` 可由 Provider 切换承接。
+- 不改变上层 Query API 合同。
+
+### FR-12 一致化验证
+- 在 3 节点脚本中加入跨节点一致性测试并纳入 CI。
+
+### FR-13 通用 Application Service 层
+- 提供通用 `ICommandApplicationService` / `IQueryApplicationService` 编排入口。
+- 通用应用层必须支持：校验、幂等、防重、审计、错误模型统一。
+- 业务侧仅实现领域 handler/mapper/spec，不重复实现管道横切逻辑。
+
+### FR-14 通用 Host 装配层
+- 提供模块化注册机制，支持按模块装配：
+  - 领域命令/查询 handler
+  - 投影 projector/reducer
+  - Provider 适配器
+- 启动期执行统一能力协商与配置有效性校验。
+
+## 10. 非功能需求（Non-Functional Requirements）
+
+### NFR-1 一致性
+- 读模型允许最终一致；同节点写后读在可配置窗口内收敛。
+- EventStore 单流版本单调递增。
+
+### NFR-2 性能
+- Event append 与批量事件数量线性相关。
+- `ListAsync` 必须有硬上限。
+
+### NFR-3 可观测性
+- 结构化日志至少包含：`provider`、`readModelType`、`documentId`、`stateVersion`、`elapsedMs`、`exceptionType`。
+- 索引型 Provider 额外记录：`index`、`alias`。
+- Graph Index Provider 额外记录：`nodeLabel`、`relationshipType`、`constraint`.
+
+### NFR-4 可运维性
+- Provider 配置支持 `appsettings` + 环境变量。
+- 索引型 Provider 的索引命名必须可环境隔离。
+
+### NFR-5 安全
+- 日志不得输出凭据。
+- 保留认证/TLS 参数透传位。
+
+## 11. 配置需求
+
+### 11.1 Event Sourcing
+- `EventSourcing:Provider`
+- `EventSourcing:Snapshot:*`
+- `EventSourcing:PersistedEvent:Mode`（`Snapshot` / `Delta`）
+- `EventSourcing:PersistedEvent:AutoGenerate`（默认 `true`）
+
+### 11.2 ReadModel Provider
+- `Projection:ReadModel:Provider`（示例：`InMemory` / `Elasticsearch` / future）
+- `Projection:ReadModel:IndexKind`（可选：`Auto` / `Document` / `Graph`）
+- `Projection:ReadModel:Mode`（`StateOnly` / `DefaultReadModel` / `CustomReadModel`）
+- `Projection:ReadModel:DefaultMode`（`MirrorState` / `CustomProjector`，仅在非 `StateOnly` 下生效）
+- `Projection:ReadModel:FailOnUnsupportedCapabilities`（默认 `true`）
+- `Projection:ReadModel:Bindings:*`（可选，ReadModel 到 Provider 的显式绑定）
+
+### 11.3 Provider 专属配置（示例）
+- `Projection:ReadModel:Providers:Elasticsearch:Endpoints`
+- `Projection:ReadModel:Providers:Elasticsearch:IndexPrefix`
+- `Projection:ReadModel:Providers:Elasticsearch:RequestTimeoutMs`
+- `Projection:ReadModel:Providers:Elasticsearch:ListTakeMax`
+- `Projection:ReadModel:Providers:Elasticsearch:AutoCreateIndex`
+- `Projection:ReadModel:Providers:Neo4j:Uri`
+- `Projection:ReadModel:Providers:Neo4j:Database`
+- `Projection:ReadModel:Providers:Neo4j:Username`
+- `Projection:ReadModel:Providers:Neo4j:Password`
+- `Projection:ReadModel:Providers:Neo4j:AutoCreateConstraints`
+
+### 11.4 ReadModel Metadata
+- `Projection:ReadModel:Metadata:StrictMode`
+- `Projection:ReadModel:Metadata:ApplyAliases`
+
+## 12. 验收标准（DoD）
+
+### 12.1 单元测试
+- 自动状态事件生成：变更检测、无变更不写、版本单调。
+- EventEnvelope 边界：路由字段不进入权威 persisted event。
+- Provider 能力匹配：支持/不支持索引能力的注册行为。
+- Provider 类型匹配：`Document` 元数据不能落到 `Graph` Provider，反之亦然。
+- 自动路由：单候选可自动承接，多候选未消歧必须 fail-fast。
+- 默认镜像器映射与自定义覆盖优先级。
+- Elasticsearch Provider 的 Upsert/Mutate/Get/List 与索引初始化。
+- Neo4j Provider 的节点/关系写入与约束初始化。
+- 通用 Application Service 管道：横切逻辑顺序与异常语义一致。
+- Host 装配：模块注册冲突与能力协商失败路径覆盖。
+- ReadModel 可选模式：`StateOnly`/`DefaultReadModel`/`CustomReadModel` 行为与能力边界覆盖。
+
+### 12.2 集成测试
+- Docker Elasticsearch 下验证索引型 ReadModel 的端到端写读。
+- Docker Neo4j 下验证图模型 ReadModel 的端到端写读。
+- 验证切换 Provider 后 Query 语义一致。
+- 验证 `StateOnly` 模式下读取端点返回统一“能力不可用”语义。
+
+### 12.3 分布式一致化测试
+- 3 节点下 `workflows/agents` 查询跨节点一致。
+- 测试纳入 CI 且可稳定判定失败。
+
+### 12.4 合规门槛
+- `build/test` 全通过。
+- 架构 guard 与稳定性 guard 全通过。
+- 文档、配置示例、能力矩阵同步。
+
+## 13. 与现状对比
+| 维度 | 现状 | 目标 |
+|---|---|---|
+| 后端绑定 | 容易向 Elasticsearch 语义靠拢 | Provider 抽象，不绑定具体后端 |
+| 索引类型 | 仅文档索引思维 | Document/Graph 双索引统一抽象 |
+| EventStore 事件语义 | 易混用 runtime envelope | 仅持久化状态语义事件 |
+| Persisted Event 开发成本 | 业务手写为主 | 框架自动生成 |
+| Application Service | 业务层重复实现横切逻辑 | 通用管道壳 + 领域 handler 插件 |
+| Host 装配 | 模块能力协商分散 | 统一模块装配与能力校验 |
+| ReadModel 定义要求 | 默认倾向开发者显式定义 | ReadModel 可选（StateOnly/Default/Custom） |
+| 默认读模型构建 | 业务手写 reducer/projector | 默认提供 State 镜像投影 |
+| 索引能力 | 无统一能力闸门 | ReadModel 元数据 + Provider 能力匹配 |
+
+## 14. 风险与缓解
+- 风险：能力不匹配导致运行时失败。
+  - 缓解：启动期 fail-fast + 能力矩阵校验。
+- 风险：默认镜像不足以覆盖复杂业务。
+  - 缓解：保持自定义 projector 可替换。
+- 风险：索引 mapping 演进兼容问题。
+  - 缓解：版本化索引 + alias 切换策略（后续扩展）。
+
+## 15. 里程碑建议
+1. M1：Provider 能力抽象 + 默认镜像抽象。
+2. M2：Document/Graph 元数据模型 + 能力匹配实现。
+3. M3：Elasticsearch + Neo4j 双适配器与测试覆盖。
+4. M4：Workflow 接入、3 节点一致化与 CI 收口。
+
+## 16. 待确认项（Open Questions）
+- 不支持索引能力时是否允许“显式降级”为无索引模式，还是一律 fail-fast？
+- Provider 能力最小集合是否需要扩展到 `SupportsPartialUpdate`？
+- ReadModel 元数据版本升级策略如何定义（兼容/阻断）？
+- 同一 ReadModel 是否允许同时落 Document + Graph（双写），还是要求单一承接方？

From 07c4668578385d27dccb65f3e37045971153239e Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Mon, 23 Feb 2026 21:22:39 +0800
Subject: [PATCH 02/46] Add Provider-Based ReadModel Architecture and
 Elasticsearch/InMemory Providers

- Introduced a new architecture for Provider-Based ReadModel, decoupling read model storage from specific business domains.
- Added Elasticsearch and InMemory providers for read model storage, supporting capabilities like indexing and schema validation.
- Implemented registration and selection mechanisms for providers, enhancing flexibility in read model management.
- Updated documentation to reflect the new architecture and provider capabilities, ensuring clarity for developers integrating read models.
- Refactored existing abstractions to support the new provider model, including capability validation and runtime options.
---
 README.md                                     |   2 +-
 aevatar.slnx                                  |   2 +
 ...ng-elasticsearch-readmodel-requirements.md | 564 +++++++++---------
 ...ider-based-readmodel-full-refactor-plan.md | 267 +++++++++
 ...ateProjectionReadModelStoreRegistration.cs |  33 +
 ...rojectionReadModelStoreProviderMetadata.cs |   6 +
 .../IProjectionReadModelStoreRegistration.cs  |  11 +
 ...nReadModelCapabilityValidationException.cs |  32 +
 .../ProjectionReadModelCapabilityValidator.cs |  56 ++
 .../ProjectionReadModelIndexKind.cs           |   8 +
 ...ProjectionReadModelProviderCapabilities.cs |  46 ++
 .../ProjectionReadModelProviderNames.cs       |  10 +
 .../ProjectionReadModelRequirements.cs        |  34 ++
 .../ProjectionReadModelRuntimeOptions.cs      |  15 +
 ...rojectionReadModelStoreSelectionOptions.cs |   8 +
 .../ProjectionReadModelStoreSelector.cs       |  64 ++
 .../README.md                                 |   4 +
 ....Projection.Providers.Elasticsearch.csproj |  16 +
 ...icsearchProjectionReadModelStoreOptions.cs |  20 +
 .../ServiceCollectionExtensions.cs            |  40 ++
 .../GlobalUsings.cs                           |   1 +
 .../README.md                                 |  20 +
 .../ElasticsearchProjectionReadModelStore.cs  | 310 ++++++++++
 ....CQRS.Projection.Providers.InMemory.csproj |  16 +
 .../ServiceCollectionExtensions.cs            |  32 +
 .../GlobalUsings.cs                           |   1 +
 .../README.md                                 |  20 +
 .../InMemoryProjectionReadModelStore.cs       | 125 ++++
 .../Aevatar.Workflow.Infrastructure.csproj    |   2 +
 ...owCapabilityServiceCollectionExtensions.cs |  42 +-
 .../WorkflowExecutionProjectionOptions.cs     |  20 +
 .../ServiceCollectionExtensions.cs            |  81 ++-
 .../Aevatar.Workflow.Projection/README.md     |  29 +-
 ...InMemoryWorkflowExecutionReadModelStore.cs | 132 ----
 ...flowExecutionReadModelNotFoundException.cs |  12 -
 .../ProjectionReadModelStoreSelectorTests.cs  | 134 +++++
 ...lowExecutionProjectionRegistrationTests.cs | 135 +++++
 ...WorkflowExecutionProjectionServiceTests.cs |  11 +-
 ...orkflowExecutionReadModelProjectorTests.cs |  22 +-
 .../WorkflowHostingExtensionsCoverageTests.cs |   1 -
 ...owProjectionOrchestrationComponentTests.cs |  11 +-
 41 files changed, 1930 insertions(+), 465 deletions(-)
 create mode 100644 docs/architecture/provider-based-readmodel-full-refactor-plan.md
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionReadModelStoreRegistration.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreProviderMetadata.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreRegistration.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidationException.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelIndexKind.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderNames.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelectionOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Stores/InMemoryWorkflowExecutionReadModelStore.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Stores/WorkflowExecutionReadModelNotFoundException.cs
 create mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs

diff --git a/README.md b/README.md
index 7506d1d0a..d26cc2eb5 100644
--- a/README.md
+++ b/README.md
@@ -92,7 +92,7 @@ curl -X POST http://localhost:5000/api/chat \
 | Orleans Transport | `ActorRuntime:Provider=Orleans` 默认仍走内置链路；可选 `ActorRuntime:Transport=Kafka` 启用 MassTransit/Kafka 传输插件。 | 生产按部署拓扑启用可插拔 transport，并统一由 stream/queue 层承载跨节点转发。 |
 | Projection 启动并发（Ensure/Release） | 已由 `projection:{rootActorId}` 投影协调 Actor 串行裁决，不再依赖进程内 `SemaphoreSlim`。 | 分布式 Runtime 下继续依赖“同一 actorId 单激活 + 邮箱串行”保证并发互斥。 |
 | LiveSink 绑定（Attach/Detach） | 已通过 `workflow-run:{actorId}:{commandId}` 事件流订阅/退订；不再依赖 `ProjectionContext` 内存 sink 列表。 | 在分布式 stream provider 下天然支持跨节点推送；生产需保障 provider 可用性与顺序语义。 |
-| ReadModel 存储 | Workflow 默认 `InMemoryWorkflowExecutionReadModelStore`，可替换。 | 生产默认切换到持久化读模型存储，实现跨节点一致读。 |
+| ReadModel 存储 | 默认通过 `Aevatar.CQRS.Projection.Providers.InMemory` 注册通用 InMemory Store，可按 Provider 机制替换。 | 生产默认切换到持久化读模型 Provider，实现跨节点一致读。 |
 | 审计评分口径 | 以“当前已落地代码”为准评分。 | 目标态能力上线后，评分按实现结果重新审计。 |
 
 下面这张图概括了「宿主（API + 运行时 + LLM + Connector）」与「Agent 树 + 工作流步骤」的关系。
diff --git a/aevatar.slnx b/aevatar.slnx
index 9a09ada30..b384b725a 100644
--- a/aevatar.slnx
+++ b/aevatar.slnx
@@ -38,6 +38,8 @@
     <Project Path="src\Aevatar.Configuration\Aevatar.Configuration.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
+    <Project Path="src\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
+    <Project Path="src\Aevatar.CQRS.Projection.Providers.InMemory\Aevatar.CQRS.Projection.Providers.InMemory.csproj" />
     <Project Path="src\Aevatar.Foundation.Projection\Aevatar.Foundation.Projection.csproj" />
     <Project Path="src\Aevatar.Foundation.Abstractions\Aevatar.Foundation.Abstractions.csproj" />
     <Project Path="src\Aevatar.Foundation.Core\Aevatar.Foundation.Core.csproj" />
diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index 228d4b709..c25664b4b 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -1,340 +1,312 @@
-# Generic Event Sourcing + Index-Capable ReadModel 需求文档（Document/Graph 双索引抽象）
+# Generic Event Sourcing + Provider-Based ReadModel 需求文档（基线对齐版）
 
 ## 1. 文档元信息
-- 状态：Draft
-- 目标版本：v1
+- 状态：In Progress（Revised）
+- 目标版本：v1（对齐当前仓库基线后可实施）
 - 适用仓库：`aevatar`
-- 编写日期：2026-02-22
-- 本次更新：去具体后端绑定，改为 ReadModel Provider 能力模型
-
-## 2. 背景与问题
-当前仓库已具备：
-- 基础 Event Sourcing 抽象：`IEventStore`、`EventSourcingBehavior<TState>`
-- 有状态 Agent 抽象：`GAgentBase<TState>` + `IStateStore<TState>`
-- 投影读模型抽象：`IProjectionReadModelStore<TReadModel, TKey>`
-- InMemory 默认实现
-
-当前缺口：
-- 缺少“默认 State -> ReadModel”镜像能力，开发者需要手写大量投影胶水。
-- ReadModel 存储语义与具体后端边界不清晰，容易把架构绑定到 Elasticsearch。
-- 缺少“ReadModel 元数据 -> 索引能力”统一模型，无法做后端能力匹配。
-- 缺少对两类索引形态的统一抽象：Document Index（Elasticsearch-like）与 Graph Index（Neo4j-like）。
-- `EventEnvelope` 与 EventStore 持久化事件边界不清晰。
-- persisted event 手写成本高，影响 Event Sourcing 落地。
-
-## 3. 目标
-1. Event Sourcing 与 Snapshot 语义保持不变。
-2. 默认提供 State -> ReadModel 镜像投影（开发者无感接入），且 ReadModel 对开发者可选。
-3. ReadModel 存储采用 Provider 抽象，不绑定具体后端。
-4. ReadModel 元数据可描述“索引诉求”；仅索引能力后端可承接。
-5. 同时支持两类索引 Provider：Document Index 与 Graph Index。
-6. Elasticsearch 与 Neo4j 作为首批适配器，而不是架构绑定点。
-7. EventStore 默认存储状态语义事件，由框架自动生成。
-8. `EventEnvelope` 仅用于运行时处理与传播，不作为 EventStore 权威事件模型。
-9. CQRS 各层采用“通用壳 + 领域插件”模式：`Application/Infrastructure/Host` 可通用，`Domain` 保持领域语义。
-
-## 4. 非目标
-- 不在本期引入新的业务编排模型。
-- 不在本期实现跨存储分布式事务。
-- 不在本期实现所有后端 Provider（先完成 InMemory + Elasticsearch + Neo4j）。
-- 不在本期定义完整 ILM/冷热分层策略（仅保留扩展位）。
-- 不在本期把领域不变量抽象成通用模板（领域规则仍由业务模块定义）。
-
-## 5. 架构约束（强制）
+- 首稿日期：2026-02-22
+- 本次修订：2026-02-23
+- 修订目的：将需求与当前代码/门禁/测试基线对齐，消除实现冲突
+
+## 2. 当前仓库基线（截至 2026-02-23）
+当前已具备能力：
+- Event Sourcing 抽象：`IEventStore`、`IEventSourcingBehavior<TState>`、`EventSourcingBehavior<TState>`。
+- 状态快照抽象：`IStateStore<TState>`，默认 InMemory 实现。
+- 统一 Projection Pipeline：`ProjectionLifecycleService -> ProjectionSubscriptionRegistry -> ProjectionDispatcher -> ProjectionCoordinator`。
+- 统一读模型存储契约：`IProjectionReadModelStore<TReadModel, TKey>`（`Upsert/Mutate/Get/List`）。
+- Provider 能力模型与校验：`ProjectionReadModelProviderCapabilities`、`ProjectionReadModelRequirements`、`ProjectionReadModelCapabilityValidator`。
+- Provider 选择与注册抽象：`IProjectionReadModelStoreRegistration<,>`、`ProjectionReadModelStoreSelector`。
+- 通用 Provider 项目已落地：`Aevatar.CQRS.Projection.Providers.InMemory`、`Aevatar.CQRS.Projection.Providers.Elasticsearch`。
+- Workflow 读侧完整链路：`WorkflowExecutionProjectionService` + Activation/Release/Lease/QueryReader/SinkForwarder 组件化编排。
+- Workflow 读侧已切换 Provider 选择链路；Provider 注册在 Infrastructure 完成（InMemory + Elasticsearch）。
+- CQRS 与 AGUI 共用同一输入事件流（不同 projector 分支输出）。
+- 通用命令执行壳与 Capability Host 装配机制已存在。
+- 架构门禁与稳定性门禁已生效（`architecture_guards`、`projection_route_mapping_guard`、`test_stability_guards`）。
+- 分布式 3 节点一致性集成测试与 smoke 脚本已接入 CI。
+
+当前未具备能力：
+- Graph Provider（Neo4j-like）适配器落地。
+- “State -> Default ReadModel” 的通用镜像层。
+- 自动生成 Persisted State Event 的统一框架管道（当前为显式 `RaiseEvent/ConfirmEventsAsync`）。
+- `Neo4j.Driver` 仅在集中版本文件声明，业务项目尚未引用并落地实现。
+
+### 2.1 基线证据（关键代码位置）
+| 主题 | 现状结论 | 证据 |
+|---|---|---|
+| Projection 关闭语义 | Workflow 命令入口 fail-fast，返回 `ProjectionDisabled` | `src/workflow/Aevatar.Workflow.Application/Runs/WorkflowRunContextFactory.cs`；`test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs` |
+| Query 关闭语义 | 关闭时应用层返回 `null/[]`，API 侧表现为 `404/200` | `src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs`；`src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs` |
+| ReadModel Store 契约 | 仅 `Upsert/Mutate/Get/List` 四类操作 | `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStore.cs` |
+| Provider 选择与装配 | Workflow 通过 Provider 注册 + Selector 选择 ReadModel Store | `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`；`src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs` |
+| Persisted Event 模型 | `StateEvent` 无 `metadata` 字段 | `src/Aevatar.Foundation.Abstractions/agent_messages.proto` |
+| ES 写入模式 | 仍是显式 `RaiseEvent/ConfirmEventsAsync` | `src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`；`docs/EVENT_SOURCING.md` |
+| 运行时注入 | Runtime 注入 `StateStore`，未统一注入 ES 行为 | `src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs` |
+| Capability Host | 已有 capability 注册/映射防重复机制 | `src/Aevatar.Hosting/AevatarCapabilityHostExtensions.cs` |
+| 分布式一致性基线 | 已有 3 节点集成测试 + smoke 脚本 | `test/Aevatar.Foundation.Runtime.Hosting.Tests/DistributedClusterConsistencyIntegrationTests.cs`；`tools/ci/distributed_3node_smoke.sh` |
+| 架构约束自动化 | 路由精确匹配、禁止中间层 ID 映射事实态、lease/session 约束 | `tools/ci/architecture_guards.sh`；`tools/ci/projection_route_mapping_guard.sh` |
+
+## 3. 问题定义
+在当前基线上，仍有以下缺口：
+- Provider 能力模型与选择链路已落地，但跨业务域统一治理（Registry/策略化选择/观测）仍不完整。
+- Document Provider 已可用，但生产级增强（异常分级、索引策略细化、观测字段收口）仍需补齐。
+- EventEnvelope 与 Persisted State Event 的边界在文档层仍需统一口径，避免误用。
+- 目标中包含的 `StateOnly`、Graph Index、自动 Persisted Event 与当前运行语义存在冲突，需要分期。
+
+## 4. 目标与分期
+
+### 4.1 总体目标
+1. 保持单一主链路：`Command -> Event -> Projection -> ReadModel`。
+2. 在不破坏现有 Workflow 语义的前提下，引入 Provider 能力抽象与启动期校验。
+3. v1 先交付 Document Index Provider（Elasticsearch-like）落地能力。
+4. Graph Index（Neo4j-like）进入 vNext，先沉淀抽象，不在 v1 强制交付完整能力。
+5. Event Sourcing 继续保持兼容，自动化增强采用显式分期与开关。
+
+### 4.2 分期策略
+- P0（当前文档阶段）：基线对齐、冲突消解、DoD 可执行化。
+- P1（v1）：Provider 能力模型 + 启动期校验 + Document Index Provider 适配。
+- P2（vNext）：Graph Index Provider 与通用 StateMirror/StateOnly 能力扩展。
+
+### 4.3 v1 落地边界（结合现有代码）
+- v1 以 Workflow 读侧为唯一落地点：`WorkflowExecutionReport` 先完成 Provider 化。
+- 不在 v1 引入新的“全局第二投影框架”，而是复用现有 `AddWorkflowExecutionProjectionCQRS` 与 Provider 注册/选择链路。
+- v1 不改写命令执行主链路，不变更 `WorkflowRunContextFactory` 的 Projection fail-fast 语义。
+- v1 不改 Query API 合同，只保证替换存储后语义一致。
+
+## 5. 非目标（v1）
+- 不引入第二套 CQRS/Projection 主链路。
+- 不破坏现有 Workflow 命令入口“投影关闭即 fail-fast”行为。
+- 不在 v1 完成 Graph 查询 DSL、路径优化执行器。
+- 不在 v1 引入跨存储分布式事务。
+- 不在 v1 改造所有 Event Sourcing 调用为全自动模式。
+
+## 6. 架构与治理约束（强制）
 - 严格分层：`Domain / Application / Infrastructure / Host`。
-- 统一投影链路：默认镜像与自定义投影都必须走同一 Projection Pipeline。
-- 读写分离：`Command -> Event`、`Query -> ReadModel`。
-- 中间层不得以进程内映射充当跨节点事实源。
-- 上层依赖抽象：业务代码不得依赖具体后端 SDK（如 Elasticsearch Client）。
-- Provider 能力校验必须在启动期执行，避免运行期隐式降级。
-- 分层通用化边界：`Application/Infrastructure/Host` 提供通用框架能力；`Domain` 仅通过契约插件接入，禁止把领域语义硬编码进通用层。
-
-## 6. 术语
-- `State`：`GAgentBase<TState>` 领域状态，由 `IStateStore<TState>` 持久化快照。
-- `ReadModel`：查询视图模型。
-- `Runtime Envelope`：运行时消息载体（`EventEnvelope`）。
-- `Persisted State Event`：EventStore 中的状态语义事件。
-- `ReadModel Provider`：`IProjectionReadModelStore<TReadModel, TKey>` 的具体后端实现。
-- `Index-Capable Provider`：声明支持索引建模能力（mapping/settings/alias）的 Provider。
-- `Document Index Provider`：面向文档索引模型（索引、mapping、alias）。
-- `Graph Index Provider`：面向图索引模型（节点、关系、约束、路径查询优化）。
-
-## 7. 方案总览
-
-### 7.1 默认主链路
-`Agent State` -> `StateMirrorProjection` -> `IProjectionReadModelStore<TReadModel, TKey>` -> `ReadModel Provider`
-
-补充：
-- 同一 `State` 可以扇出到多个 `ReadModel`（一对多）。
-- 每个 `State/ReadModel` 绑定由一个“最终写入 owner projector”负责落库。
-
-### 7.2 Provider 能力闸门
-- ReadModel 元数据声明索引诉求（如主键、字段类型、索引别名）。
-- Provider 声明能力（如 `SupportsIndexing`、`IndexKind`、`SupportsAliases`）。
-- 启动期进行“ReadModel 诉求 vs Provider 能力”匹配：
-  - 匹配成功：注册并运行。
-  - 不匹配：按策略 fail-fast（默认）或显式禁用该 ReadModel。
-
-路由规则补充：
-- `IndexKind` 对 ReadModel 是可选项（`Auto/None`）。
-- 当仅有一个索引型 Provider 可用时，可不标记 `IndexKind`，走默认路由。
-- 当存在多个候选 Provider 时，必须通过 `IndexKind` 或显式绑定配置完成消歧，否则启动 fail-fast。
-
-### 7.2.1 索引类型统一抽象
-- `IndexKind=Document`：用于 Elasticsearch-like 后端。
-- `IndexKind=Graph`：用于 Neo4j-like 后端。
-- 统一抽象层负责：
-  - 元数据标准化（ReadModel Index Profile）
-  - 能力协商与注册校验
-  - 将通用 ReadModel 变更翻译为后端特定写操作
-
-### 7.3 开发者体验目标
-- 最小路径：仅定义 `State`（可不定义 `ReadModel`）。
-- 默认路径：不定义 `ReadModel` 时，框架可提供默认读视图（Default ReadModel）。
-- 进阶路径：定义自定义 `ReadModel` 并可替换 `IStateToReadModelProjector<TState, TReadModel>`。
-- 运维路径：通过元数据驱动索引初始化（仅限索引型 Provider）。
-
-### 7.4 EventEnvelope 与 EventStore 边界
-- 运行时仍以 `EventEnvelope` 处理与分发。
-- EventStore 权威事件必须是 `Persisted State Event`。
-- 原始 `EventEnvelope` 可选旁路落库用于审计，但不参与回放权威语义。
-
-### 7.5 全层通用化模型（Generic CQRS Kernel）
-- `Domain`：定义业务状态、业务命令、业务查询、领域规则（不可被框架语义吞并）。
-- `Application`：提供通用 Command/Query 编排管道（校验、幂等、权限、审计、事务边界、投影触发）。
-- `Infrastructure`：提供可替换存储与索引 Provider（EventStore/StateStore/ReadModelStore）。
-- `Host`：提供统一模块装配、能力协商、配置绑定、健康检查。
-- 领域模块仅需注册 handler/projector/readmodel 契约，即可接入通用内核。
-
-ReadModel 可选模式：
-- `State-only`：仅写侧或最小查询场景，不要求开发者定义 ReadModel。
-- `Default ReadModel`：框架基于 State 生成默认读视图。
-- `Custom ReadModel`：开发者定义专用查询模型与投影逻辑。
+- Host 仅做协议适配与能力装配，不承载业务编排。
+- CQRS 与 AGUI 必须共用统一 Projection Pipeline，禁止双轨。
+- 中间层禁止进程内 actor/run/session 事实态映射。
+- 投影生命周期必须基于 lease/session 显式句柄，不允许 `actorId -> context` 反查。
+- Event type 路由必须基于 `TypeUrl` 派生 + 精确键匹配（`TryGetValue`），禁止字符串模糊匹配。
+- 能力不匹配在启动期 fail-fast（默认策略），不得运行期隐式降级。
+- 所有变更必须通过既有门禁与测试。
+
+## 7. 关键决策（本版定稿）
+
+### D1 `StateOnly` 语义（Workflow 现状）
+- 在当前 Workflow 能力中，`ProjectionDisabled` 会阻断命令执行（现有行为保持）。
+- 因此 v1 不将 Workflow 场景纳入 `StateOnly` 支持范围；`StateOnly` 进入通用内核 vNext 议题。
+
+### D2 Query API 合同兼容
+- v1 不改现有查询端点对外合同（现有 `null/[]/404/200` 语义维持）。
+- 若后续引入统一“能力不可用”错误模型，需单独版本化并提供迁移说明。
+
+### D3 Event Sourcing 保持兼容
+- v1 继续支持显式 `RaiseEvent/ConfirmEventsAsync` 路径。
+- 自动 Persisted Event 仅作为扩展能力进入 P2，不作为 v1 合并前置条件。
+
+### D4 Persisted Event 权威模型
+- `EventEnvelope` 仅用于运行时传播/投影输入。
+- EventStore 权威回放源是 `StateEvent`（Persisted State Event）。
+
+### D5 Graph 能力分期
+- v1：仅保留 Graph 抽象扩展位，不要求完整 Neo4j 读写/查询能力。
+- vNext：Graph Provider 以单独 RFC + 里程碑方式落地。
+
+### D6 v1 实施落点
+- v1 的 Provider 化仅要求在 Workflow Projection 模块闭环，不强制外溢到所有业务域。
+- 先确保“现有测试与门禁全绿 + 行为不回归”，再考虑通用化抽象下沉。
 
 ## 8. 范围（Scope）
 
-### 8.1 In Scope
-- Provider 抽象下的通用 ReadModel Store 语义。
-- 默认 State 镜像投影（可替换）。
-- ReadModel 元数据模型与能力匹配规则。
-- Elasticsearch 适配器（Document Index Provider）实现。
-- Neo4j 适配器（Graph Index Provider）实现。
-- 通用 Application Service 管道抽象（Command/Query 通用壳）。
-- 通用 Host 模块装配抽象（模块注册与能力协商）。
-- DI 扩展：Provider 切换、默认镜像器注册、自定义覆盖。
-- Workflow Projection 接入。
-- 单元、集成、分布式一致化测试。
-
-### 8.2 Out of Scope
-- 全量后端 Provider 一次性交付。
-- Elasticsearch 生产运维平台自动化。
-
-## 9. 功能需求（Functional Requirements）
-
-### FR-1 Event Sourcing 抽象
-- append-only + `expectedVersion` 并发校验 + `fromVersion` 回放查询。
-- 事件记录结构包含：`streamId`、`eventId`、`eventType`、`eventData`、`version`、`timestamp`、`metadata`。
-
-### FR-2 Persisted State Event 模型约束
-- EventStore 权威事件必须只表达状态变更语义。
-- 不得耦合运行时路由字段（例如 `Direction`、转发链）。
-- 原始 envelope 不作为回放权威源。
-
-### FR-3 自动状态事件生成（开发者无感）
-- 框架在统一处理管道内自动生成 `Persisted State Event`。
-- 一次处理结束后基于 State 变更检测决定是否 append。
-- 无状态变化不得产生冗余事件。
-- 支持 `Snapshot` / `Delta` 策略扩展。
-
-### FR-4 有状态 Agent 与 Snapshot
-- `GAgentBase<TState>` 继续通过 `IStateStore<TState>` 完成 Load/Save。
-- 启用 Event Sourcing 不改变 `IStateStore<TState>` 作为快照通道的语义。
-
-### FR-5 通用 ReadModel Store（Provider 模式）
-- 兼容 `IProjectionReadModelStore<TReadModel, TKey>`：
+### 8.1 In Scope（v1）
+- 定义 ReadModel Provider 能力模型与协商机制。
+- 启动期执行 “ReadModel 要求 vs Provider 能力” 校验。
+- 保持 `IProjectionReadModelStore<TReadModel, TKey>` 兼容，不破坏现有 Workflow 读侧。
+- 提供 Document Index Provider（Elasticsearch-like）适配器。
+- Workflow `WorkflowExecutionReport` 可切换到 Document Provider 承接。
+- 通过 `IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>` 注册 Provider，不新增平行投影链路。
+- 配置模型与 DI 扩展补齐（保留与现有 `WorkflowExecutionProjection:*` 兼容）。
+- 补齐单元/集成/门禁验证。
+
+### 8.2 Out of Scope（v1）
+- Graph Provider 的完整查询与关系建模能力。
+- 通用 `StateMirrorProjection` 自动覆盖所有 `GAgentBase<TState>` 类型。
+- 全量业务模块一次性迁移到新 Provider。
+- 生产 ILM/冷热分层自动化。
+- 新建独立“全局 ReadModel Infrastructure 大一统项目”并强制迁移全仓库。
+
+## 9. 功能需求（FR）
+
+### FR-1 Event Sourcing 抽象保持兼容
+- 保持 `IEventStore` 追加、版本并发校验、按版本回放语义。
+- 保持 `IStateStore<TState>` 快照通道语义不变。
+
+### FR-2 Persisted State Event 与 Envelope 边界
+- Persisted 回放源仅为 `StateEvent`。
+- `EventEnvelope` 中运行时路由/传播字段不得进入回放权威语义。
+
+### FR-3 StateEvent 结构约束（v1）
+- v1 继续使用现有 `StateEvent` 字段模型：
+  `event_id/timestamp/version/event_type/event_data/agent_id`。
+- 若需 `metadata` 字段，作为 vNext 的 proto 升级任务，不阻塞 v1。
+
+### FR-4 ReadModel Store 兼容约束
+- `IProjectionReadModelStore<TReadModel, TKey>` 契约保持兼容：
   - `UpsertAsync`
   - `MutateAsync`
   - `GetAsync`
   - `ListAsync`
-- API 语义不绑定具体后端。
+- 既有 Workflow 读侧代码无需修改业务语义即可接入新 Provider。
+- v1 不在该接口上新增 Graph 专有方法，避免破坏现有实现与测试基线。
 
-### FR-6 Provider 能力声明与匹配
-- 定义 Provider 能力抽象（至少包含）：
+### FR-5 Provider 能力声明模型
+- 新增能力抽象（至少包含）：
   - `SupportsIndexing`
-  - `IndexKind`（`Document` / `Graph`）
+  - `IndexKinds`（支持集合，至少可表达 `Document`）
   - `SupportsAliases`
   - `SupportsSchemaValidation`
-- ReadModel 注册时执行能力匹配。
-- 对声明索引诉求的 ReadModel，必须由 `SupportsIndexing=true` 的 Provider 承接。
-- 当 ReadModel 显式声明 `IndexKind` 时，Provider 必须类型匹配。
-- 当 ReadModel 未声明 `IndexKind` 时，允许自动路由；若候选 Provider 不唯一则必须显式消歧。
-
-### FR-7 默认 State 镜像投影
-- 提供默认 `IStateToReadModelProjector<TState, TReadModel>`：
-  - 默认策略：同名字段映射 + 可配置忽略字段。
-  - 字段不匹配可由映射配置或自定义 projector 覆盖。
-- 当开发者未定义 `ReadModel` 时，允许落到框架默认读视图（Default ReadModel）。
-
-### FR-7.1 ReadModel 可选化
-- 开发者不定义 `ReadModel` 时系统必须可运行（至少支持 `State-only` 模式）。
-- 可通过配置选择：`State-only` / `Default ReadModel` / `Custom ReadModel`。
-- 在 `State-only` 模式下，若调用依赖 ReadModel 的查询端点，应返回明确错误或能力不可用响应（按统一错误模型）。
-
-### FR-8 自定义投影替换机制
-- 允许业务侧通过 DI 替换默认镜像器。
-- 同一 `State/ReadModel` 绑定仅允许一个“最终写入 owner projector”。
-- owner projector 内部允许组合多个 reducer/applier/module 协同完成映射与聚合。
-- `State -> ReadModel` 为一对多：一个 State 可以对应多个 ReadModel，但每个 ReadModel 绑定仍必须只有一个最终写入 owner。
-- 优先级：显式业务注册 > 默认注册。
-
-### FR-9 ReadModel 元数据驱动索引（能力感知）
-- ReadModel 元数据可声明：
-  - 通用：索引名/前缀、主键字段、版本、标签
-  - Document Profile：字段 mapping（keyword/text/date/numeric/...）、settings、alias
-  - Graph Profile：节点标签、关系类型、关系方向、唯一约束字段、可选索引提示
-- 仅索引型 Provider 执行 metadata 建索引逻辑。
-- 非索引型 Provider 遇到索引诉求时按策略 fail-fast（默认）。
-- `IndexKind` 未声明时，可由 Provider 能力自动推断；推断不唯一时必须显式绑定。
-
-### FR-10 双索引适配器实现
-- 必须提供 Document Index 适配器（Elasticsearch-like）。
-- 必须提供 Graph Index 适配器（Neo4j-like）。
-- 两者都必须遵循统一抽象层，不得在业务层分叉接口。
-- 双适配器是平台能力要求，不代表每个 ReadModel 都必须显式标记 `Document/Graph`。
-
-### FR-11 Workflow Projection 接入
-- `WorkflowExecutionReport` 可由 Provider 切换承接。
-- 不改变上层 Query API 合同。
-
-### FR-12 一致化验证
-- 在 3 节点脚本中加入跨节点一致性测试并纳入 CI。
-
-### FR-13 通用 Application Service 层
-- 提供通用 `ICommandApplicationService` / `IQueryApplicationService` 编排入口。
-- 通用应用层必须支持：校验、幂等、防重、审计、错误模型统一。
-- 业务侧仅实现领域 handler/mapper/spec，不重复实现管道横切逻辑。
-
-### FR-14 通用 Host 装配层
-- 提供模块化注册机制，支持按模块装配：
-  - 领域命令/查询 handler
-  - 投影 projector/reducer
-  - Provider 适配器
-- 启动期执行统一能力协商与配置有效性校验。
-
-## 10. 非功能需求（Non-Functional Requirements）
+- 能力模型可由 Store 实现直接声明，或由独立能力描述器声明。
+- 无论采用哪种声明方式，都不得破坏现有 Store 接口二进制兼容性。
+
+### FR-6 启动期能力校验
+- ReadModel 注册/装配阶段执行能力匹配。
+- 默认策略：不匹配 fail-fast。
+- 必须输出结构化错误，包含 readModel/provider/requiredCapabilities。
+- 能力校验应接入现有 Workflow Projection DI 装配流程，而不是额外旁路启动器。
+
+### FR-7 Workflow Provider 可替换承接
+- `WorkflowExecutionReport` 的存储后端支持通过 Provider 注册在 DI 中替换。
+- 切换 Provider 后，Query 结果语义与字段口径保持一致。
+
+### FR-8 Document Index Provider（v1 必做）
+- 实现 Elasticsearch-like Provider：
+  - 支持 `Upsert/Mutate/Get/List` 等价语义。
+  - 支持索引命名环境隔离（如 prefix）。
+  - 支持可配置索引初始化策略（create if missing）。
+
+### FR-9 `StateOnly` 约束说明（v1）
+- Workflow 能力 v1 保持现有行为：Projection 关闭时返回 `ProjectionDisabled`。
+- `StateOnly/DefaultReadModel/CustomReadModel` 通用模式进入 vNext RFC，不在 v1 作为可验收项。
+
+### FR-10 Event Sourcing 自动化分期
+- v1 不强制实现“统一管道自动生成 Persisted Event”。
+- 如实现实验能力，必须开关控制且默认关闭，不改变现有显式路径行为。
+
+### FR-11 可观测性
+- Provider 写入路径至少记录：
+  `provider/readModelType/key(state id)/elapsedMs/result/errorType`。
+- 启动期能力校验失败日志必须可定位到具体 ReadModel 与缺失能力。
+
+### FR-12 分布式一致化验证
+- 保持并复用现有 3 节点一致性验证链路与脚本接入。
+- 新增 Provider 后，不得破坏现有 distributed smoke 稳定性。
+
+### FR-13 复用现有通用壳能力
+- Command 侧复用现有 `ICommandExecutionService<...>` 抽象，不新增平行命令执行框架。
+- Host 侧复用既有 capability 注册机制，不新增第二套 capability 映射容器。
+
+## 10. 非功能需求（NFR）
 
 ### NFR-1 一致性
-- 读模型允许最终一致；同节点写后读在可配置窗口内收敛。
-- EventStore 单流版本单调递增。
+- EventStore 单流版本必须单调递增。
+- ReadModel 允许最终一致，但需在测试中可稳定判定收敛/失败。
 
 ### NFR-2 性能
-- Event append 与批量事件数量线性相关。
-- `ListAsync` 必须有硬上限。
+- `ListAsync` 必须强制硬上限（Provider 侧可配置上限）。
+- Provider 写入路径延迟应可观测（至少日志维度可统计）。
 
-### NFR-3 可观测性
-- 结构化日志至少包含：`provider`、`readModelType`、`documentId`、`stateVersion`、`elapsedMs`、`exceptionType`。
-- 索引型 Provider 额外记录：`index`、`alias`。
-- Graph Index Provider 额外记录：`nodeLabel`、`relationshipType`、`constraint`.
+### NFR-3 可运维性
+- Provider 配置支持 `appsettings` + 环境变量覆盖。
+- 能力不匹配在启动期直接失败，不允许运行中静默降级。
 
-### NFR-4 可运维性
-- Provider 配置支持 `appsettings` + 环境变量。
-- 索引型 Provider 的索引命名必须可环境隔离。
+### NFR-4 安全
+- 日志不得输出明文凭据。
+- 凭据通过配置系统注入，支持环境变量替换。
 
-### NFR-5 安全
-- 日志不得输出凭据。
-- 保留认证/TLS 参数透传位。
+### NFR-5 门禁兼容性
+- 新增实现不得触发现有 `architecture_guards`、`projection_route_mapping_guard`、`test_stability_guards` 违规。
+- 新增测试不得引入未授权轮询等待；必要例外必须进入 allowlist 并给出理由。
 
 ## 11. 配置需求
 
-### 11.1 Event Sourcing
-- `EventSourcing:Provider`
-- `EventSourcing:Snapshot:*`
-- `EventSourcing:PersistedEvent:Mode`（`Snapshot` / `Delta`）
-- `EventSourcing:PersistedEvent:AutoGenerate`（默认 `true`）
-
-### 11.2 ReadModel Provider
-- `Projection:ReadModel:Provider`（示例：`InMemory` / `Elasticsearch` / future）
-- `Projection:ReadModel:IndexKind`（可选：`Auto` / `Document` / `Graph`）
-- `Projection:ReadModel:Mode`（`StateOnly` / `DefaultReadModel` / `CustomReadModel`）
-- `Projection:ReadModel:DefaultMode`（`MirrorState` / `CustomProjector`，仅在非 `StateOnly` 下生效）
+### 11.1 当前有效配置（已存在）
+- `ActorRuntime:Provider`（`InMemory/MassTransit/Orleans`）
+- `WorkflowExecutionProjection:Enabled`
+- `WorkflowExecutionProjection:EnableActorQueryEndpoints`
+- `WorkflowExecutionProjection:EnableRunReportArtifacts`
+- `WorkflowExecutionProjection:RunProjectionCompletionWaitTimeoutMs`
+- `WorkflowExecutionProjection:RunProjectionFinalizeGraceTimeoutMs`
+
+### 11.2 v1 新增配置（建议）
+- `Projection:ReadModel:Provider`（`InMemory/Elasticsearch`）
 - `Projection:ReadModel:FailOnUnsupportedCapabilities`（默认 `true`）
-- `Projection:ReadModel:Bindings:*`（可选，ReadModel 到 Provider 的显式绑定）
+- `Projection:ReadModel:Bindings:*`（可选，ReadModel -> Provider 显式绑定）
+- `WorkflowExecutionProjection:ReadModelProvider` / `FailOnUnsupportedCapabilities` / `ReadModelBindings` 保留为模块内覆盖位（可选）
 
-### 11.3 Provider 专属配置（示例）
+### 11.3 Document Provider 示例配置
 - `Projection:ReadModel:Providers:Elasticsearch:Endpoints`
 - `Projection:ReadModel:Providers:Elasticsearch:IndexPrefix`
 - `Projection:ReadModel:Providers:Elasticsearch:RequestTimeoutMs`
 - `Projection:ReadModel:Providers:Elasticsearch:ListTakeMax`
 - `Projection:ReadModel:Providers:Elasticsearch:AutoCreateIndex`
-- `Projection:ReadModel:Providers:Neo4j:Uri`
-- `Projection:ReadModel:Providers:Neo4j:Database`
-- `Projection:ReadModel:Providers:Neo4j:Username`
-- `Projection:ReadModel:Providers:Neo4j:Password`
-- `Projection:ReadModel:Providers:Neo4j:AutoCreateConstraints`
+- `Projection:ReadModel:Providers:Elasticsearch:Username`
+- `Projection:ReadModel:Providers:Elasticsearch:Password`
 
-### 11.4 ReadModel Metadata
-- `Projection:ReadModel:Metadata:StrictMode`
-- `Projection:ReadModel:Metadata:ApplyAliases`
+### 11.4 预留（vNext）
+- `Projection:ReadModel:Providers:Neo4j:*`
+- `Projection:ReadModel:Mode`（`StateOnly/DefaultReadModel/CustomReadModel`）
 
 ## 12. 验收标准（DoD）
 
 ### 12.1 单元测试
-- 自动状态事件生成：变更检测、无变更不写、版本单调。
-- EventEnvelope 边界：路由字段不进入权威 persisted event。
-- Provider 能力匹配：支持/不支持索引能力的注册行为。
-- Provider 类型匹配：`Document` 元数据不能落到 `Graph` Provider，反之亦然。
-- 自动路由：单候选可自动承接，多候选未消歧必须 fail-fast。
-- 默认镜像器映射与自定义覆盖优先级。
-- Elasticsearch Provider 的 Upsert/Mutate/Get/List 与索引初始化。
-- Neo4j Provider 的节点/关系写入与约束初始化。
-- 通用 Application Service 管道：横切逻辑顺序与异常语义一致。
-- Host 装配：模块注册冲突与能力协商失败路径覆盖。
-- ReadModel 可选模式：`StateOnly`/`DefaultReadModel`/`CustomReadModel` 行为与能力边界覆盖。
+- Provider 能力声明与匹配（成功/失败/冲突路径）。
+- 启动期 fail-fast 错误语义。
+- Document Provider 的 `Upsert/Mutate/Get/List` 契约一致性。
+- Workflow 切换 Provider 后 Query 结果语义保持一致。
+- `ProjectionDisabled` 行为保持兼容（Workflow v1）。
+- 覆盖 Provider 注册与选择链路：`IProjectionReadModelStoreRegistration<,>` + `ProjectionReadModelStoreSelector`。
 
 ### 12.2 集成测试
-- Docker Elasticsearch 下验证索引型 ReadModel 的端到端写读。
-- Docker Neo4j 下验证图模型 ReadModel 的端到端写读。
-- 验证切换 Provider 后 Query 语义一致。
-- 验证 `StateOnly` 模式下读取端点返回统一“能力不可用”语义。
+- Docker Elasticsearch 下验证 Workflow ReadModel 端到端写读。
+- Provider 切换前后，关键 Query API 返回语义一致。
 
 ### 12.3 分布式一致化测试
-- 3 节点下 `workflows/agents` 查询跨节点一致。
-- 测试纳入 CI 且可稳定判定失败。
-
-### 12.4 合规门槛
-- `build/test` 全通过。
-- 架构 guard 与稳定性 guard 全通过。
-- 文档、配置示例、能力矩阵同步。
-
-## 13. 与现状对比
-| 维度 | 现状 | 目标 |
+- 保持并通过现有 3 节点一致性脚本链路。
+- 测试稳定性门禁通过，不新增未授权轮询等待。
+
+### 12.4 合规门槛（必须全绿）
+- `dotnet build aevatar.slnx --nologo`
+- `dotnet test aevatar.slnx --nologo`
+- `bash tools/ci/architecture_guards.sh`
+- `bash tools/ci/projection_route_mapping_guard.sh`
+- `bash tools/ci/test_stability_guards.sh`
+- `bash tools/ci/solution_split_test_guards.sh`
+
+## 13. 与原稿差异（本次修订）
+| 维度 | 原稿 | 本版 |
 |---|---|---|
-| 后端绑定 | 容易向 Elasticsearch 语义靠拢 | Provider 抽象，不绑定具体后端 |
-| 索引类型 | 仅文档索引思维 | Document/Graph 双索引统一抽象 |
-| EventStore 事件语义 | 易混用 runtime envelope | 仅持久化状态语义事件 |
-| Persisted Event 开发成本 | 业务手写为主 | 框架自动生成 |
-| Application Service | 业务层重复实现横切逻辑 | 通用管道壳 + 领域 handler 插件 |
-| Host 装配 | 模块能力协商分散 | 统一模块装配与能力校验 |
-| ReadModel 定义要求 | 默认倾向开发者显式定义 | ReadModel 可选（StateOnly/Default/Custom） |
-| 默认读模型构建 | 业务手写 reducer/projector | 默认提供 State 镜像投影 |
-| 索引能力 | 无统一能力闸门 | ReadModel 元数据 + Provider 能力匹配 |
+| `StateOnly` | v1 必做 | 与当前 Workflow 冲突，改为 vNext |
+| Graph Provider | v1 必做 | 改为 vNext（v1 仅保留扩展位） |
+| Persisted Event 自动化 | v1 强要求 | 改为分期，v1 保持兼容 |
+| 配置模型 | 以 `Projection:ReadModel:*` 为主 | 先兼容现有 `WorkflowExecutionProjection:*`，渐进演进 |
+| DoD | 泛化描述 | 对齐现有 CI 门禁与可执行命令 |
 
 ## 14. 风险与缓解
-- 风险：能力不匹配导致运行时失败。
-  - 缓解：启动期 fail-fast + 能力矩阵校验。
-- 风险：默认镜像不足以覆盖复杂业务。
-  - 缓解：保持自定义 projector 可替换。
-- 风险：索引 mapping 演进兼容问题。
-  - 缓解：版本化索引 + alias 切换策略（后续扩展）。
-
-## 15. 里程碑建议
-1. M1：Provider 能力抽象 + 默认镜像抽象。
-2. M2：Document/Graph 元数据模型 + 能力匹配实现。
-3. M3：Elasticsearch + Neo4j 双适配器与测试覆盖。
-4. M4：Workflow 接入、3 节点一致化与 CI 收口。
-
-## 16. 待确认项（Open Questions）
-- 不支持索引能力时是否允许“显式降级”为无索引模式，还是一律 fail-fast？
-- Provider 能力最小集合是否需要扩展到 `SupportsPartialUpdate`？
-- ReadModel 元数据版本升级策略如何定义（兼容/阻断）？
-- 同一 ReadModel 是否允许同时落 Document + Graph（双写），还是要求单一承接方？
+- 风险：Provider 能力模型设计不当导致后续扩展困难。  
+  缓解：v1 先覆盖 Document 必需能力，Graph 通过独立 RFC 引入。
+- 风险：切换后端导致 Query 语义漂移。  
+  缓解：契约测试 + 端到端对照测试。
+- 风险：过早推进自动 Persisted Event 改动写侧行为。  
+  缓解：v1 保持显式路径，自动化能力仅实验开关。
+
+## 15. 待确认项（Open Questions）
+- `ReadModelBindings` 的优先级规则（显式绑定 vs 默认路由）最终口径。
+- Graph RFC 的启动条件（抽象稳定性、测试基线、运维要求）。
+- 多业务域接入时，Provider 默认路由策略是否需要支持“按 ReadModel 类型自动选择”。
+
+## 16. 需求-实现映射（v1）
+| 需求主题 | 优先改动位置 | 复用现有扩展点 | 说明 |
+|---|---|---|---|
+| Provider 能力声明与校验 | `src/Aevatar.CQRS.Projection.Abstractions/Abstractions` + `src/workflow/Aevatar.Workflow.Projection/DependencyInjection` | `AddWorkflowExecutionProjectionCQRS` | 通过 Selector + CapabilityValidator 在装配期做匹配与 fail-fast |
+| Document Provider Store | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch` | `IProjectionReadModelStoreRegistration<,>` | 通用 ES Provider，不绑定 Workflow 业务域 |
+| Query 语义回归保障 | `src/workflow/Aevatar.Workflow.Projection/Orchestration` | `IWorkflowExecutionProjectionPort` | 不改 `null/[]/404/200` 现有合同 |
+| 配置绑定扩展 | `src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection` | `WorkflowExecutionProjection` + `Projection:ReadModel` 配置节 | 新增统一 Provider 配置并保持模块级覆盖位 |
+| 测试与门禁收口 | `test/Aevatar.Workflow.Host.Api.Tests`、`test/Aevatar.Workflow.Application.Tests`、`tools/ci` | 现有 CI 脚本链路 | 先增量覆盖，再跑全量门禁 |
diff --git a/docs/architecture/provider-based-readmodel-full-refactor-plan.md b/docs/architecture/provider-based-readmodel-full-refactor-plan.md
new file mode 100644
index 000000000..347b42ce2
--- /dev/null
+++ b/docs/architecture/provider-based-readmodel-full-refactor-plan.md
@@ -0,0 +1,267 @@
+# Provider-Based ReadModel 全量重构计划（彻底版）
+
+## 1. 文档元信息
+- 状态：In Progress
+- 目标：覆盖 `docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md` 的全部要求（含 v1 + vNext）
+- 适用仓库：`aevatar`
+- 编写日期：2026-02-23
+- 最近更新：2026-02-23
+- 备注：本计划按“可破坏式重构”制定，不以兼容历史实现为约束
+
+## 1.1 当前进展快照（2026-02-23）
+- 已完成：W0（Provider 纠偏清理，Workflow 不再持有 Provider Store 实现）。
+- 部分完成：W1（能力模型/选择器/校验器已落地，统一 Registry 与结构化观测仍待补齐）。
+- 部分完成：W2（通用 Elasticsearch Provider 项目与 DI 注册已落地，异常分级与 schema/mapping 策略仍待增强）。
+- 部分完成：W6（Workflow 已接入通用 Provider 注册与选择链路，其它业务域未迁移）。
+- 未开始：W3/W4/W5。
+
+## 2. 执行原则（硬约束）
+- 严格分层：`Domain / Application / Infrastructure / Host`。
+- Provider 必须在通用 CQRS 基建层，不得绑定具体业务域（例如 Workflow）。
+- CQRS 与 AGUI 继续走单一 Projection Pipeline，禁止平行链路。
+- 中间层禁止进程内 ID->事实态映射（遵守现有 guard）。
+- 能力不匹配默认启动期 fail-fast。
+- 变更必须满足现有 CI 门禁与新增测试门槛。
+
+## 3. 当前关键问题（必须先修）
+1. `Elasticsearch` 适配器被放在 `Aevatar.Workflow.Projection`，违反“通用能力下沉”原则。（已修复）
+2. Provider 能力模型虽已引入，但尚未形成“跨业务域可复用”的统一 Registry/路由/校验治理框架。（进行中）
+3. Graph Provider 尚未落地，StateMirror/StateOnly 通用能力未完成。
+4. Event Sourcing 自动 Persisted Event 仍未进入统一管道。
+
+## 4. 目标架构（完成态）
+
+### 4.1 项目结构（目标）
+- `src/Aevatar.CQRS.Projection.Abstractions`
+  - 保留并扩展通用契约：`IProjectionReadModelStore<,>`、Provider 能力模型、ReadModel 需求模型。
+- `src/Aevatar.CQRS.Projection.Providers`
+  - 新建通用 Provider 运行时：注册、选择、能力校验、错误模型、可观测性。
+- `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
+  - Document Index Provider，通用实现，不含 Workflow 业务对象。
+- `src/Aevatar.CQRS.Projection.Providers.Neo4j`
+  - Graph Index Provider，通用实现，不含 Workflow 业务对象。
+- `src/Aevatar.CQRS.Projection.StateMirror`
+  - 通用 `State -> DefaultReadModel` 镜像能力（可选启用）。
+- `src/workflow/Aevatar.Workflow.Projection`
+  - 仅保留 Workflow 读模型、reducer/projector、port，不含后端 SDK/Provider 实现。
+
+### 4.2 运行路径（目标）
+1. 业务模块声明 ReadModel 与需求（IndexKind/Schema/Alias）。
+2. Host 装配通用 Provider Runtime。
+3. Provider Runtime 在启动期执行：
+   - ReadModel 绑定解析
+   - Provider 选择
+   - 能力校验
+   - 失败即 fail-fast（默认）
+4. Projection 写入通过统一 Store 契约执行，业务层无后端耦合。
+
+## 5. 全量重构范围（对应需求文档）
+
+### 5.1 v1 范围（必须完成）
+- Provider 能力模型、启动期校验、Document Provider 落地。
+- Workflow 切换 Provider 且 Query 语义不变。
+- 可观测性字段落地（provider/readModelType/key/elapsedMs/result/errorType）。
+- 配置模型落地与环境变量覆盖。
+
+### 5.2 vNext 范围（本轮也纳入计划并执行）
+- Graph Provider（Neo4j-like）完整落地。
+- 通用 `StateOnly / DefaultReadModel / CustomReadModel` 模式。
+- 通用 StateMirror 能力。
+- Event Sourcing 自动 Persisted Event 管道（开关化 + 默认策略定义）。
+
+## 6. 详细实施计划（Workstreams）
+
+### W0 纠偏清理（先决）
+目标：消除“Provider 绑定业务域”问题。
+状态：Completed（2026-02-23）
+
+任务：
+1. 从 `Aevatar.Workflow.Projection` 移除 `Elasticsearch` 实现与配置细节。
+2. 在 Workflow 层保留 `IProjectionReadModelStore<WorkflowExecutionReport, string>` 注入点，不感知具体后端。
+3. 删除/迁移 Workflow 内 Provider 专属类到通用 Provider 项目。
+
+交付：
+- Workflow 项目不再引用 Elasticsearch 相关 SDK/实现。
+- 相关 Workflow 测试已切换为通用 Provider Store 类型；Provider 专项测试集待补齐。
+
+### W1 通用 Provider Runtime 基建
+目标：建立跨业务可复用的 Provider 选择与能力校验内核。
+状态：In Progress
+
+任务：
+1. 设计并实现：
+   - `IProjectionReadModelProviderRegistry`
+   - `IProjectionReadModelProviderSelector`
+   - `IProjectionReadModelCapabilityValidator`（现有静态工具升级为可注入策略）
+   - `ProjectionReadModelBindingResolver`
+2. 引入标准错误模型：
+   - `readModel`
+   - `provider`
+   - `requiredCapabilities`
+   - `actualCapabilities`
+   - `violations`
+3. 统一日志接口与事件 ID，支持结构化查询。
+
+交付：
+- 任意业务模块可通过统一 API 注册 ReadModel 需求并由运行时自动选 Provider。
+
+### W2 Document Provider（Elasticsearch）
+目标：通用 Document Index Provider 完成生产可用版本。
+状态：In Progress
+
+任务：
+1. 新建 `Aevatar.CQRS.Projection.Providers.Elasticsearch`。
+2. 提供通用 Store 适配机制：
+   - 支持 `Upsert/Mutate/Get/List`
+   - `ListAsync` 强上限
+   - 索引前缀隔离
+   - 自动建索引策略
+3. 引入 mapping/settings/alias 处理策略（与能力模型一致）。
+4. 完善异常分类（连接失败、索引不存在、版本冲突、认证失败）。
+
+交付：
+- 不依赖 Workflow 类型的通用 ES Provider。
+
+### W3 Graph Provider（Neo4j）
+目标：完成 Graph Index Provider 能力闭环。
+状态：Not Started
+
+任务：
+1. 新建 `Aevatar.CQRS.Projection.Providers.Neo4j`。
+2. 支持节点/关系写入与基础查询。
+3. 支持唯一约束与索引初始化策略。
+4. 将 Graph 能力纳入同一 Provider runtime 校验。
+
+交付：
+- `IndexKind.Graph` 可被真实 Provider 承接。
+
+### W4 StateMirror / ReadModel 可选模式
+目标：完成 `StateOnly / DefaultReadModel / CustomReadModel` 三模式。
+状态：Not Started
+
+任务：
+1. 新建 `Aevatar.CQRS.Projection.StateMirror`：
+   - 默认字段映射
+   - 可配置忽略/重命名
+   - 可插拔 projector 覆盖
+2. `StateOnly` 模式定义：
+   - 不创建 ReadModel
+   - 查询端点返回统一能力不可用错误模型
+3. `CustomReadModel` 与默认镜像并存规则、优先级规则落地。
+
+交付：
+- 框架层提供无业务耦合的默认读模型能力。
+
+### W5 Event Sourcing 自动 Persisted Event 管道
+目标：把“手动 Raise/Confirm”为主的模式升级为可配置自动化。
+状态：Not Started
+
+任务：
+1. 设计统一写侧提交管道：
+   - 变更检测
+   - 事件生成（Snapshot/Delta）
+   - 版本推进与幂等控制
+2. 提供开关：
+   - 全局开关
+   - 模块级覆盖
+3. 默认策略：
+   - 默认保持兼容行为或由本次重构统一切换（按最终决策）
+
+交付：
+- 业务方无需手动拼装 persisted event 基础流程。
+
+### W6 Workflow 与其他模块接入
+目标：业务域从“自带 Provider”转为“消费通用 Provider Runtime”。
+状态：In Progress
+
+任务：
+1. Workflow 完整迁移到通用 runtime。
+2. 逐步接入 AI/Foundation/其他读侧模块（如存在）。
+3. 清理重复抽象、空转发层、历史兼容分支。
+
+交付：
+- 业务域仅保留领域语义与投影逻辑，不含后端实现细节。
+
+## 7. 配置模型重构计划
+
+### 7.1 目标配置（通用）
+- `Projection:ReadModel:Provider`
+- `Projection:ReadModel:FailOnUnsupportedCapabilities`
+- `Projection:ReadModel:Bindings`
+- `Projection:ReadModel:Providers:Elasticsearch:*`
+- `Projection:ReadModel:Providers:Neo4j:*`
+- `Projection:ReadModel:Mode`（`StateOnly/DefaultReadModel/CustomReadModel`）
+
+### 7.2 迁移策略（本次不保兼容）
+- 删除业务域私有 Provider 配置键（如 `WorkflowExecutionProjection:Providers:*`）。
+- 全量切换到统一 `Projection:ReadModel:*`。
+
+## 8. 测试与门禁计划
+
+### 8.1 单元测试
+- Provider 能力匹配：成功/失败/冲突/歧义。
+- Provider 选择器：单候选自动路由、多候选强制显式绑定。
+- ReadModel 三模式行为测试。
+- 自动 Persisted Event 管道（变更检测、版本、幂等）。
+
+### 8.2 集成测试
+- Elasticsearch 端到端写读（Docker）。
+- Neo4j 端到端写读（Docker）。
+- Workflow Provider 切换后 Query 合同一致性。
+
+### 8.3 分布式测试
+- 保留并扩展 3 节点一致性链路。
+- 新增 Provider 后验证跨节点一致收敛。
+
+### 8.4 强制门禁
+- `dotnet build aevatar.slnx --nologo`
+- `dotnet test aevatar.slnx --nologo`
+- `bash tools/ci/architecture_guards.sh`
+- `bash tools/ci/projection_route_mapping_guard.sh`
+- `bash tools/ci/test_stability_guards.sh`
+- `bash tools/ci/solution_split_test_guards.sh`
+
+## 9. 里程碑与交付
+
+### M1（纠偏 + 基建）
+- 完成 W0 + W1。
+- 验收：Workflow 不再持有任何 Provider 实现。
+- 当前状态：W0 完成；W1 部分完成。
+
+### M2（Document Provider）
+- 完成 W2。
+- 验收：ES Provider 在通用层可被 Workflow/其他模块消费。
+- 当前状态：已可被 Workflow 消费，增强项进行中。
+
+### M3（Graph Provider）
+- 完成 W3。
+- 验收：Graph ReadModel 可真实写读，能力校验全链路可用。
+- 当前状态：未开始。
+
+### M4（StateMirror + 模式化 + ES 自动化）
+- 完成 W4 + W5。
+- 验收：ReadModel 三模式与自动 Persisted Event 能力全量可测。
+- 当前状态：未开始。
+
+### M5（全域收口）
+- 完成 W6 + 全量文档/测试/门禁收口。
+- 验收：需求文档条目全部闭环，无历史空壳实现。
+- 当前状态：Workflow 已接入，其它域待迁移。
+
+## 10. 风险与应对
+- 风险：Provider Runtime 泛化过度导致复杂度爆炸。  
+  应对：先冻结最小能力集合，按里程碑增量扩展。
+- 风险：Graph 与 Document 语义差异大，统一抽象失真。  
+  应对：抽象仅覆盖公共最小集，复杂能力走 provider-specific extension。
+- 风险：重构期间回归面大。  
+  应对：分阶段门禁 + 契约测试 + 分片测试强制执行。
+- 风险：自动 Persisted Event 改写写侧行为。  
+  应对：先实验开关，明确默认策略后再全量切换。
+
+## 11. 完成定义（Final DoD）
+- 需求文档中 FR/NFR 全量有代码落地。
+- Provider 不再出现在业务域实现层。
+- Document + Graph Provider 均可被统一 runtime 装配并通过能力校验。
+- StateOnly/Default/Custom 三模式完整可用。
+- 自动 Persisted Event 管道可用并有完整测试。
+- 全量 CI 门禁通过，文档同步完成。
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionReadModelStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionReadModelStoreRegistration.cs
new file mode 100644
index 000000000..f3d760bad
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionReadModelStoreRegistration.cs
@@ -0,0 +1,33 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class DelegateProjectionReadModelStoreRegistration<TReadModel, TKey>
+    : IProjectionReadModelStoreRegistration<TReadModel, TKey>
+    where TReadModel : class
+{
+    private readonly Func<IServiceProvider, IProjectionReadModelStore<TReadModel, TKey>> _factory;
+
+    public DelegateProjectionReadModelStoreRegistration(
+        string providerName,
+        ProjectionReadModelProviderCapabilities capabilities,
+        Func<IServiceProvider, IProjectionReadModelStore<TReadModel, TKey>> factory)
+    {
+        if (string.IsNullOrWhiteSpace(providerName))
+            throw new ArgumentException("Provider name must not be empty.", nameof(providerName));
+        ArgumentNullException.ThrowIfNull(capabilities);
+        ArgumentNullException.ThrowIfNull(factory);
+
+        ProviderName = providerName.Trim();
+        Capabilities = capabilities;
+        _factory = factory;
+    }
+
+    public string ProviderName { get; }
+
+    public ProjectionReadModelProviderCapabilities Capabilities { get; }
+
+    public IProjectionReadModelStore<TReadModel, TKey> Create(IServiceProvider serviceProvider)
+    {
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+        return _factory(serviceProvider);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreProviderMetadata.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreProviderMetadata.cs
new file mode 100644
index 000000000..45561c08b
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreProviderMetadata.cs
@@ -0,0 +1,6 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionReadModelStoreProviderMetadata
+{
+    ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreRegistration.cs
new file mode 100644
index 000000000..8902194c9
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreRegistration.cs
@@ -0,0 +1,11 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionReadModelStoreRegistration<TReadModel, TKey>
+    where TReadModel : class
+{
+    string ProviderName { get; }
+
+    ProjectionReadModelProviderCapabilities Capabilities { get; }
+
+    IProjectionReadModelStore<TReadModel, TKey> Create(IServiceProvider serviceProvider);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidationException.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidationException.cs
new file mode 100644
index 000000000..290ee852b
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidationException.cs
@@ -0,0 +1,32 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class ProjectionReadModelCapabilityValidationException : InvalidOperationException
+{
+    public ProjectionReadModelCapabilityValidationException(
+        Type readModelType,
+        ProjectionReadModelRequirements requirements,
+        ProjectionReadModelProviderCapabilities capabilities,
+        IReadOnlyList<string> violations)
+        : base(BuildMessage(readModelType, capabilities.ProviderName, violations))
+    {
+        ReadModelType = readModelType;
+        Requirements = requirements;
+        Capabilities = capabilities;
+        Violations = violations;
+    }
+
+    public Type ReadModelType { get; }
+
+    public ProjectionReadModelRequirements Requirements { get; }
+
+    public ProjectionReadModelProviderCapabilities Capabilities { get; }
+
+    public IReadOnlyList<string> Violations { get; }
+
+    private static string BuildMessage(
+        Type readModelType,
+        string providerName,
+        IReadOnlyList<string> violations) =>
+        $"ReadModel '{readModelType.FullName}' is not supported by provider '{providerName}'. " +
+        $"Violations: {string.Join("; ", violations)}";
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs
new file mode 100644
index 000000000..bb6bb87ef
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs
@@ -0,0 +1,56 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public static class ProjectionReadModelCapabilityValidator
+{
+    public static IReadOnlyList<string> Validate(
+        ProjectionReadModelRequirements requirements,
+        ProjectionReadModelProviderCapabilities capabilities)
+    {
+        ArgumentNullException.ThrowIfNull(requirements);
+        ArgumentNullException.ThrowIfNull(capabilities);
+
+        var violations = new List<string>();
+
+        if (requirements.RequiresIndexing && !capabilities.SupportsIndexing)
+            violations.Add("requires indexing, but provider does not support indexing");
+
+        if (requirements.RequiredIndexKinds.Count > 0)
+        {
+            if (!capabilities.SupportsIndexing)
+            {
+                violations.Add(
+                    $"requires index kinds [{string.Join(", ", requirements.RequiredIndexKinds)}], but provider indexing is disabled");
+            }
+            else if (!requirements.RequiredIndexKinds.Overlaps(capabilities.IndexKinds))
+            {
+                violations.Add(
+                    $"required index kinds [{string.Join(", ", requirements.RequiredIndexKinds)}] are not supported by provider kinds [{string.Join(", ", capabilities.IndexKinds)}]");
+            }
+        }
+
+        if (requirements.RequiresAliases && !capabilities.SupportsAliases)
+            violations.Add("requires alias support, but provider does not support aliases");
+
+        if (requirements.RequiresSchemaValidation && !capabilities.SupportsSchemaValidation)
+            violations.Add("requires schema validation, but provider does not support schema validation");
+
+        return violations;
+    }
+
+    public static void EnsureSupported(
+        Type readModelType,
+        ProjectionReadModelRequirements requirements,
+        ProjectionReadModelProviderCapabilities capabilities)
+    {
+        ArgumentNullException.ThrowIfNull(readModelType);
+        var violations = Validate(requirements, capabilities);
+        if (violations.Count == 0)
+            return;
+
+        throw new ProjectionReadModelCapabilityValidationException(
+            readModelType,
+            requirements,
+            capabilities,
+            violations);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelIndexKind.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelIndexKind.cs
new file mode 100644
index 000000000..bfc18fc2c
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelIndexKind.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public enum ProjectionReadModelIndexKind
+{
+    None = 0,
+    Document = 1,
+    Graph = 2,
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs
new file mode 100644
index 000000000..bb5d50d18
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs
@@ -0,0 +1,46 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class ProjectionReadModelProviderCapabilities
+{
+    private static readonly IReadOnlySet<ProjectionReadModelIndexKind> EmptyIndexKinds =
+        new HashSet<ProjectionReadModelIndexKind>();
+
+    public ProjectionReadModelProviderCapabilities(
+        string providerName,
+        bool supportsIndexing,
+        IEnumerable<ProjectionReadModelIndexKind>? indexKinds = null,
+        bool supportsAliases = false,
+        bool supportsSchemaValidation = false)
+    {
+        if (string.IsNullOrWhiteSpace(providerName))
+            throw new ArgumentException("Provider name must not be empty.", nameof(providerName));
+
+        ProviderName = providerName.Trim();
+        SupportsIndexing = supportsIndexing;
+        SupportsAliases = supportsAliases;
+        SupportsSchemaValidation = supportsSchemaValidation;
+
+        var normalizedIndexKinds = (indexKinds ?? [])
+            .Where(x => x != ProjectionReadModelIndexKind.None)
+            .ToHashSet();
+
+        if (!supportsIndexing && normalizedIndexKinds.Count > 0)
+            throw new ArgumentException(
+                "Index kinds cannot be declared when supportsIndexing is false.",
+                nameof(indexKinds));
+
+        IndexKinds = normalizedIndexKinds.Count == 0
+            ? EmptyIndexKinds
+            : normalizedIndexKinds;
+    }
+
+    public string ProviderName { get; }
+
+    public bool SupportsIndexing { get; }
+
+    public IReadOnlySet<ProjectionReadModelIndexKind> IndexKinds { get; }
+
+    public bool SupportsAliases { get; }
+
+    public bool SupportsSchemaValidation { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderNames.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderNames.cs
new file mode 100644
index 000000000..3f3aef17e
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderNames.cs
@@ -0,0 +1,10 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public static class ProjectionReadModelProviderNames
+{
+    public const string InMemory = "InMemory";
+
+    public const string Elasticsearch = "Elasticsearch";
+
+    public const string Neo4j = "Neo4j";
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs
new file mode 100644
index 000000000..f17764aba
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs
@@ -0,0 +1,34 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class ProjectionReadModelRequirements
+{
+    private static readonly IReadOnlySet<ProjectionReadModelIndexKind> EmptyIndexKinds =
+        new HashSet<ProjectionReadModelIndexKind>();
+
+    public ProjectionReadModelRequirements(
+        bool requiresIndexing = false,
+        IEnumerable<ProjectionReadModelIndexKind>? requiredIndexKinds = null,
+        bool requiresAliases = false,
+        bool requiresSchemaValidation = false)
+    {
+        RequiresIndexing = requiresIndexing;
+        RequiresAliases = requiresAliases;
+        RequiresSchemaValidation = requiresSchemaValidation;
+
+        var normalizedIndexKinds = (requiredIndexKinds ?? [])
+            .Where(x => x != ProjectionReadModelIndexKind.None)
+            .ToHashSet();
+
+        RequiredIndexKinds = normalizedIndexKinds.Count == 0
+            ? EmptyIndexKinds
+            : normalizedIndexKinds;
+    }
+
+    public bool RequiresIndexing { get; }
+
+    public IReadOnlySet<ProjectionReadModelIndexKind> RequiredIndexKinds { get; }
+
+    public bool RequiresAliases { get; }
+
+    public bool RequiresSchemaValidation { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
new file mode 100644
index 000000000..4954b3bb7
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
@@ -0,0 +1,15 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class ProjectionReadModelRuntimeOptions
+{
+    public ProjectionReadModelRuntimeOptions()
+    {
+        Bindings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+    }
+
+    public string Provider { get; set; } = ProjectionReadModelProviderNames.InMemory;
+
+    public bool FailOnUnsupportedCapabilities { get; set; } = true;
+
+    public Dictionary<string, string> Bindings { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelectionOptions.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelectionOptions.cs
new file mode 100644
index 000000000..f144b3e72
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelectionOptions.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class ProjectionReadModelStoreSelectionOptions
+{
+    public string RequestedProviderName { get; set; } = "";
+
+    public bool FailOnUnsupportedCapabilities { get; set; } = true;
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs
new file mode 100644
index 000000000..42f588206
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs
@@ -0,0 +1,64 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public static class ProjectionReadModelStoreSelector
+{
+    public static IProjectionReadModelStoreRegistration<TReadModel, TKey> Select<TReadModel, TKey>(
+        IEnumerable<IProjectionReadModelStoreRegistration<TReadModel, TKey>> registrations,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements)
+        where TReadModel : class
+    {
+        ArgumentNullException.ThrowIfNull(registrations);
+        ArgumentNullException.ThrowIfNull(selectionOptions);
+        ArgumentNullException.ThrowIfNull(requirements);
+
+        var candidates = registrations.ToList();
+        if (candidates.Count == 0)
+            throw new InvalidOperationException(
+                $"No read-model provider registrations found for '{typeof(TReadModel).FullName}'.");
+
+        var requestedProviderName = selectionOptions.RequestedProviderName?.Trim() ?? "";
+        var selected = ResolveRegistration(candidates, requestedProviderName);
+
+        var violations = ProjectionReadModelCapabilityValidator.Validate(requirements, selected.Capabilities);
+        if (violations.Count > 0 && selectionOptions.FailOnUnsupportedCapabilities)
+        {
+            throw new ProjectionReadModelCapabilityValidationException(
+                typeof(TReadModel),
+                requirements,
+                selected.Capabilities,
+                violations);
+        }
+
+        return selected;
+    }
+
+    private static IProjectionReadModelStoreRegistration<TReadModel, TKey> ResolveRegistration<TReadModel, TKey>(
+        IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> registrations,
+        string requestedProviderName)
+        where TReadModel : class
+    {
+        if (requestedProviderName.Length == 0)
+        {
+            if (registrations.Count == 1)
+                return registrations[0];
+
+            throw new InvalidOperationException(
+                $"Multiple providers are registered for '{typeof(TReadModel).FullName}', but no explicit provider was requested. " +
+                $"Available: {string.Join(", ", registrations.Select(x => x.ProviderName))}.");
+        }
+
+        var matched = registrations
+            .FirstOrDefault(x => string.Equals(
+                x.ProviderName,
+                requestedProviderName,
+                StringComparison.OrdinalIgnoreCase));
+
+        if (matched != null)
+            return matched;
+
+        throw new InvalidOperationException(
+            $"Requested provider '{requestedProviderName}' is not registered for '{typeof(TReadModel).FullName}'. " +
+            $"Available: {string.Join(", ", registrations.Select(x => x.ProviderName))}.");
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Abstractions/README.md
index d18d63241..1f265fbba 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Abstractions/README.md
@@ -8,6 +8,10 @@
 - 扩展抽象：`IProjectionProjector<,>`、`IProjectionEventReducer<,>`
 - 失败回传：`IProjectionDispatchFailureReporter<>`
 - 读模型存储：`IProjectionReadModelStore<,>`
+- Provider 能力建模：`ProjectionReadModelProviderCapabilities`、`IProjectionReadModelStoreProviderMetadata`
+- 能力校验：`ProjectionReadModelRequirements`、`ProjectionReadModelCapabilityValidator`
+- Provider 注册与选择：`IProjectionReadModelStoreRegistration<,>`、`DelegateProjectionReadModelStoreRegistration<,>`、`ProjectionReadModelStoreSelector`
+- Provider 运行配置：`ProjectionReadModelRuntimeOptions`
 - 运行时策略：`IProjectionRuntimeOptions`、`IProjectionClock`
 - 流订阅复用：`IActorStreamSubscriptionHub<TMessage>`
 - 投影上下文：`IProjectionContext`
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
new file mode 100644
index 000000000..b193b1845
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AssemblyName>Aevatar.CQRS.Projection.Providers.Elasticsearch</AssemblyName>
+    <RootNamespace>Aevatar.CQRS.Projection.Providers.Elasticsearch</RootNamespace>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
+  </ItemGroup>
+</Project>
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs
new file mode 100644
index 000000000..7628858fa
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs
@@ -0,0 +1,20 @@
+namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
+
+public sealed class ElasticsearchProjectionReadModelStoreOptions
+{
+    public List<string> Endpoints { get; set; } = [];
+
+    public string IndexPrefix { get; set; } = "aevatar";
+
+    public int RequestTimeoutMs { get; set; } = 10000;
+
+    public int ListTakeMax { get; set; } = 200;
+
+    public bool AutoCreateIndex { get; set; } = true;
+
+    public string Username { get; set; } = "";
+
+    public string Password { get; set; } = "";
+
+    public string ListSortField { get; set; } = "";
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
new file mode 100644
index 000000000..ccf96aa14
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -0,0 +1,40 @@
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
+
+public static class ServiceCollectionExtensions
+{
+    public static IServiceCollection AddElasticsearchReadModelStoreRegistration<TReadModel, TKey>(
+        this IServiceCollection services,
+        Func<IServiceProvider, ElasticsearchProjectionReadModelStoreOptions> optionsFactory,
+        string indexScope,
+        Func<TReadModel, TKey> keySelector,
+        Func<TKey, string>? keyFormatter = null,
+        string providerName = ProjectionReadModelProviderNames.Elasticsearch)
+        where TReadModel : class
+    {
+        ArgumentNullException.ThrowIfNull(optionsFactory);
+        ArgumentNullException.ThrowIfNull(indexScope);
+        ArgumentNullException.ThrowIfNull(keySelector);
+
+        services.AddSingleton<IProjectionReadModelStoreRegistration<TReadModel, TKey>>(
+            new DelegateProjectionReadModelStoreRegistration<TReadModel, TKey>(
+                providerName,
+                new ProjectionReadModelProviderCapabilities(
+                    providerName,
+                    supportsIndexing: true,
+                    indexKinds: [ProjectionReadModelIndexKind.Document],
+                    supportsAliases: true,
+                    supportsSchemaValidation: true),
+                provider => new ElasticsearchProjectionReadModelStore<TReadModel, TKey>(
+                    optionsFactory(provider),
+                    indexScope,
+                    keySelector,
+                    keyFormatter,
+                    providerName)));
+
+        return services;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs
new file mode 100644
index 000000000..b07fa3dbd
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs
@@ -0,0 +1 @@
+global using Aevatar.CQRS.Projection.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
new file mode 100644
index 000000000..57bb111f3
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
@@ -0,0 +1,20 @@
+# Aevatar.CQRS.Projection.Providers.Elasticsearch
+
+通用 Elasticsearch Document ReadModel Provider。
+
+- 不依赖任何业务域 read model。
+- 通过 `IProjectionReadModelStoreRegistration<TReadModel, TKey>` 与上层模块解耦集成。
+- 能力声明：`Document` 索引、alias、schema validation。
+
+## DI 注册
+
+使用扩展方法：
+
+- `AddElasticsearchReadModelStoreRegistration<TReadModel, TKey>(...)`
+
+关键参数：
+
+- `optionsFactory`：绑定 `Projection:ReadModel:Providers:Elasticsearch:*` 配置。
+- `indexScope`：按业务语义隔离索引（会与 `IndexPrefix` 组合）。
+- `keySelector/keyFormatter`：ReadModel 主键映射。
+- `providerName`：默认 `Elasticsearch`（与 `ProjectionReadModelProviderNames.Elasticsearch` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
new file mode 100644
index 000000000..3dcb3dc7d
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
@@ -0,0 +1,310 @@
+using System.Net;
+using System.Net.Http.Headers;
+using System.Text;
+using System.Text.Json;
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
+
+namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+
+public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
+    : IProjectionReadModelStore<TReadModel, TKey>,
+      IProjectionReadModelStoreProviderMetadata,
+      IDisposable
+    where TReadModel : class
+{
+    private readonly HttpClient _httpClient;
+    private readonly Func<TReadModel, TKey> _keySelector;
+    private readonly Func<TKey, string> _keyFormatter;
+    private readonly string _indexName;
+    private readonly int _listTakeMax;
+    private readonly bool _autoCreateIndex;
+    private readonly string _listSortField;
+    private readonly SemaphoreSlim _indexInitializationLock = new(1, 1);
+    private readonly JsonSerializerOptions _jsonOptions = new()
+    {
+        PropertyNameCaseInsensitive = true,
+    };
+    private bool _indexInitialized;
+
+    public ElasticsearchProjectionReadModelStore(
+        ElasticsearchProjectionReadModelStoreOptions options,
+        string indexScope,
+        Func<TReadModel, TKey> keySelector,
+        Func<TKey, string>? keyFormatter = null,
+        string providerName = ProjectionReadModelProviderNames.Elasticsearch)
+    {
+        ArgumentNullException.ThrowIfNull(options);
+        ArgumentNullException.ThrowIfNull(keySelector);
+
+        var endpoint = ResolvePrimaryEndpoint(options.Endpoints);
+        _httpClient = new HttpClient
+        {
+            BaseAddress = endpoint,
+            Timeout = TimeSpan.FromMilliseconds(Math.Max(500, options.RequestTimeoutMs)),
+        };
+
+        if (!string.IsNullOrWhiteSpace(options.Username))
+        {
+            var raw = $"{options.Username}:{options.Password}";
+            var token = Convert.ToBase64String(Encoding.UTF8.GetBytes(raw));
+            _httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", token);
+        }
+
+        var normalizedScope = NormalizeToken(indexScope);
+        if (normalizedScope.Length == 0)
+            normalizedScope = "readmodel";
+
+        _indexName = BuildIndexName(options.IndexPrefix, normalizedScope);
+        _listTakeMax = options.ListTakeMax > 0 ? options.ListTakeMax : 200;
+        _autoCreateIndex = options.AutoCreateIndex;
+        _keySelector = keySelector;
+        _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
+        _listSortField = options.ListSortField?.Trim() ?? "";
+        ProviderCapabilities = BuildCapabilities(providerName);
+    }
+
+    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+
+    public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default) =>
+        UpsertCoreAsync(readModel, allowCreateIndex: true, ct);
+
+    public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(mutate);
+        ct.ThrowIfCancellationRequested();
+
+        var existing = await GetAsync(key, ct);
+        if (existing == null)
+            throw new InvalidOperationException($"ReadModel '{typeof(TReadModel).FullName}' with key '{FormatKey(key)}' was not found.");
+
+        mutate(existing);
+        await UpsertCoreAsync(existing, allowCreateIndex: true, ct);
+    }
+
+    public async Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        await EnsureIndexAsync(ct);
+
+        var keyValue = FormatKey(key);
+        if (keyValue.Length == 0)
+            return null;
+
+        using var response = await _httpClient.GetAsync($"{_indexName}/_doc/{Uri.EscapeDataString(keyValue)}", ct);
+        if (response.StatusCode == HttpStatusCode.NotFound)
+            return null;
+
+        await EnsureSuccessAsync(response, "get", ct);
+        var payload = await response.Content.ReadAsStringAsync(ct);
+        using var jsonDoc = JsonDocument.Parse(payload);
+        if (!jsonDoc.RootElement.TryGetProperty("_source", out var sourceNode))
+            return null;
+
+        return DeserializeOrNull(sourceNode.GetRawText());
+    }
+
+    public async Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        await EnsureIndexAsync(ct);
+        var boundedTake = Math.Clamp(take, 1, _listTakeMax);
+
+        using var request = new HttpRequestMessage(HttpMethod.Post, $"{_indexName}/_search")
+        {
+            Content = new StringContent(BuildListPayloadJson(boundedTake), Encoding.UTF8, "application/json"),
+        };
+        using var response = await _httpClient.SendAsync(request, ct);
+        if (response.StatusCode == HttpStatusCode.NotFound)
+            return [];
+
+        await EnsureSuccessAsync(response, "list", ct);
+        var payload = await response.Content.ReadAsStringAsync(ct);
+        using var jsonDoc = JsonDocument.Parse(payload);
+        if (!jsonDoc.RootElement.TryGetProperty("hits", out var hitsNode) ||
+            !hitsNode.TryGetProperty("hits", out var hitItems))
+            return [];
+
+        var items = new List<TReadModel>();
+        foreach (var hit in hitItems.EnumerateArray())
+        {
+            if (!hit.TryGetProperty("_source", out var sourceNode))
+                continue;
+
+            var item = DeserializeOrNull(sourceNode.GetRawText());
+            if (item != null)
+                items.Add(item);
+        }
+
+        return items;
+    }
+
+    private async Task UpsertCoreAsync(TReadModel readModel, bool allowCreateIndex, CancellationToken ct)
+    {
+        ArgumentNullException.ThrowIfNull(readModel);
+        ct.ThrowIfCancellationRequested();
+        if (allowCreateIndex)
+            await EnsureIndexAsync(ct);
+
+        var keyValue = ResolveReadModelKey(readModel);
+        var payload = JsonSerializer.Serialize(readModel, _jsonOptions);
+        using var request = new HttpRequestMessage(HttpMethod.Put, $"{_indexName}/_doc/{Uri.EscapeDataString(keyValue)}")
+        {
+            Content = new StringContent(payload, Encoding.UTF8, "application/json"),
+        };
+        using var response = await _httpClient.SendAsync(request, ct);
+        await EnsureSuccessAsync(response, "upsert", ct);
+    }
+
+    private string ResolveReadModelKey(TReadModel readModel)
+    {
+        var key = _keySelector(readModel);
+        var keyValue = FormatKey(key);
+        if (keyValue.Length == 0)
+            throw new InvalidOperationException(
+                $"ReadModel '{typeof(TReadModel).FullName}' resolved an empty key for Elasticsearch persistence.");
+        return keyValue;
+    }
+
+    private string FormatKey(TKey key)
+    {
+        var keyValue = _keyFormatter(key)?.Trim() ?? "";
+        return keyValue;
+    }
+
+    private TReadModel? DeserializeOrNull(string json)
+    {
+        var value = JsonSerializer.Deserialize<TReadModel>(json, _jsonOptions);
+        if (value == null)
+            return null;
+
+        // Defensive copy to isolate caller-side mutation from cache/shared references.
+        var copyPayload = JsonSerializer.Serialize(value, _jsonOptions);
+        return JsonSerializer.Deserialize<TReadModel>(copyPayload, _jsonOptions);
+    }
+
+    private string BuildListPayloadJson(int size)
+    {
+        if (_listSortField.Length == 0)
+            return JsonSerializer.Serialize(new { size, query = new { match_all = new { } } });
+
+        return JsonSerializer.Serialize(new
+        {
+            size,
+            sort = new object[]
+            {
+                new Dictionary<string, object>
+                {
+                    [_listSortField] = new { order = "desc" },
+                },
+            },
+            query = new
+            {
+                match_all = new { },
+            },
+        });
+    }
+
+    private async Task EnsureIndexAsync(CancellationToken ct)
+    {
+        if (!_autoCreateIndex || _indexInitialized)
+            return;
+
+        await _indexInitializationLock.WaitAsync(ct);
+        try
+        {
+            if (_indexInitialized)
+                return;
+
+            using var request = new HttpRequestMessage(HttpMethod.Put, _indexName)
+            {
+                Content = new StringContent("{\"mappings\":{\"dynamic\":true}}", Encoding.UTF8, "application/json"),
+            };
+            using var response = await _httpClient.SendAsync(request, ct);
+            if (response.IsSuccessStatusCode)
+            {
+                _indexInitialized = true;
+                return;
+            }
+
+            var payload = await response.Content.ReadAsStringAsync(ct);
+            if (response.StatusCode == HttpStatusCode.BadRequest &&
+                payload.Contains("resource_already_exists_exception", StringComparison.OrdinalIgnoreCase))
+            {
+                _indexInitialized = true;
+                return;
+            }
+
+            throw new InvalidOperationException(
+                $"Elasticsearch index initialization failed for '{_indexName}': {(int)response.StatusCode} {response.ReasonPhrase}. body={payload}");
+        }
+        finally
+        {
+            _indexInitializationLock.Release();
+        }
+    }
+
+    private static async Task EnsureSuccessAsync(
+        HttpResponseMessage response,
+        string operation,
+        CancellationToken ct)
+    {
+        if (response.IsSuccessStatusCode)
+            return;
+
+        var payload = await response.Content.ReadAsStringAsync(ct);
+        throw new InvalidOperationException(
+            $"Elasticsearch {operation} failed: {(int)response.StatusCode} {response.ReasonPhrase}. body={payload}");
+    }
+
+    private static Uri ResolvePrimaryEndpoint(IReadOnlyList<string>? endpoints)
+    {
+        if (endpoints == null || endpoints.Count == 0)
+            throw new InvalidOperationException("Elasticsearch provider requires at least one endpoint.");
+
+        var endpoint = endpoints[0].Trim();
+        if (endpoint.Length == 0)
+            throw new InvalidOperationException("Elasticsearch endpoint cannot be empty.");
+        if (!endpoint.Contains("://", StringComparison.Ordinal))
+            endpoint = "http://" + endpoint;
+
+        if (!Uri.TryCreate(endpoint, UriKind.Absolute, out var uri))
+            throw new InvalidOperationException($"Invalid Elasticsearch endpoint '{endpoints[0]}'.");
+
+        return uri;
+    }
+
+    private static string BuildIndexName(string indexPrefix, string indexScope)
+    {
+        var prefix = NormalizeToken(indexPrefix);
+        if (prefix.Length == 0)
+            prefix = "aevatar";
+        return $"{prefix}-{indexScope}";
+    }
+
+    private static string NormalizeToken(string token)
+    {
+        if (string.IsNullOrWhiteSpace(token))
+            return "";
+
+        var chars = token
+            .Trim()
+            .ToLowerInvariant()
+            .Select(ch => char.IsLetterOrDigit(ch) ? ch : '-')
+            .ToArray();
+        return new string(chars).Trim('-');
+    }
+
+    private static ProjectionReadModelProviderCapabilities BuildCapabilities(string providerName) =>
+        new(
+            providerName,
+            supportsIndexing: true,
+            indexKinds: [ProjectionReadModelIndexKind.Document],
+            supportsAliases: true,
+            supportsSchemaValidation: true);
+
+    public void Dispose()
+    {
+        _httpClient.Dispose();
+        _indexInitializationLock.Dispose();
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj b/src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj
new file mode 100644
index 000000000..c97263c86
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj
@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AssemblyName>Aevatar.CQRS.Projection.Providers.InMemory</AssemblyName>
+    <RootNamespace>Aevatar.CQRS.Projection.Providers.InMemory</RootNamespace>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
+  </ItemGroup>
+</Project>
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
new file mode 100644
index 000000000..a81b50987
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -0,0 +1,32 @@
+using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
+
+public static class ServiceCollectionExtensions
+{
+    public static IServiceCollection AddInMemoryReadModelStoreRegistration<TReadModel, TKey>(
+        this IServiceCollection services,
+        Func<TReadModel, TKey> keySelector,
+        Func<TKey, string>? keyFormatter = null,
+        Func<TReadModel, object?>? listSortSelector = null,
+        int listTakeMax = 200,
+        string providerName = ProjectionReadModelProviderNames.InMemory)
+        where TReadModel : class
+    {
+        ArgumentNullException.ThrowIfNull(keySelector);
+
+        services.AddSingleton<IProjectionReadModelStoreRegistration<TReadModel, TKey>>(
+            new DelegateProjectionReadModelStoreRegistration<TReadModel, TKey>(
+                providerName,
+                new ProjectionReadModelProviderCapabilities(providerName, supportsIndexing: false),
+                _ => new InMemoryProjectionReadModelStore<TReadModel, TKey>(
+                    keySelector,
+                    keyFormatter,
+                    listSortSelector,
+                    listTakeMax,
+                    providerName)));
+
+        return services;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs
new file mode 100644
index 000000000..b07fa3dbd
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs
@@ -0,0 +1 @@
+global using Aevatar.CQRS.Projection.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
new file mode 100644
index 000000000..d808968d4
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
@@ -0,0 +1,20 @@
+# Aevatar.CQRS.Projection.Providers.InMemory
+
+通用 InMemory ReadModel Provider。
+
+- 不依赖业务域模型。
+- 支持按 keySelector 注册任意 `IProjectionReadModelStore<TReadModel, TKey>`。
+- 默认能力：非索引型（`SupportsIndexing=false`）。
+
+## DI 注册
+
+使用扩展方法：
+
+- `AddInMemoryReadModelStoreRegistration<TReadModel, TKey>(...)`
+
+关键参数：
+
+- `keySelector/keyFormatter`：ReadModel 主键映射。
+- `listSortSelector`：`ListAsync` 排序字段（可选）。
+- `listTakeMax`：`ListAsync` 硬上限。
+- `providerName`：默认 `InMemory`（与 `ProjectionReadModelProviderNames.InMemory` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
new file mode 100644
index 000000000..e54490f52
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
@@ -0,0 +1,125 @@
+using System.Text.Json;
+
+namespace Aevatar.CQRS.Projection.Providers.InMemory.Stores;
+
+public sealed class InMemoryProjectionReadModelStore<TReadModel, TKey>
+    : IProjectionReadModelStore<TReadModel, TKey>,
+      IProjectionReadModelStoreProviderMetadata
+    where TReadModel : class
+{
+    private readonly object _gate = new();
+    private readonly Dictionary<string, TReadModel> _itemsByKey = new(StringComparer.Ordinal);
+    private readonly Func<TReadModel, TKey> _keySelector;
+    private readonly Func<TKey, string> _keyFormatter;
+    private readonly Func<TReadModel, object?>? _listSortSelector;
+    private readonly int _listTakeMax;
+    private readonly JsonSerializerOptions _jsonOptions = new();
+
+    public InMemoryProjectionReadModelStore(
+        Func<TReadModel, TKey> keySelector,
+        Func<TKey, string>? keyFormatter = null,
+        Func<TReadModel, object?>? listSortSelector = null,
+        int listTakeMax = 200,
+        string providerName = ProjectionReadModelProviderNames.InMemory)
+    {
+        ArgumentNullException.ThrowIfNull(keySelector);
+        _keySelector = keySelector;
+        _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
+        _listSortSelector = listSortSelector;
+        _listTakeMax = listTakeMax > 0 ? listTakeMax : 200;
+        ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
+            providerName,
+            supportsIndexing: false);
+    }
+
+    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+
+    public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(readModel);
+        ct.ThrowIfCancellationRequested();
+
+        var key = ResolveReadModelKey(readModel);
+        lock (_gate)
+            _itemsByKey[key] = Clone(readModel);
+
+        return Task.CompletedTask;
+    }
+
+    public Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(mutate);
+        ct.ThrowIfCancellationRequested();
+
+        lock (_gate)
+        {
+            var keyValue = FormatKey(key);
+            if (!_itemsByKey.TryGetValue(keyValue, out var existing))
+                throw new InvalidOperationException(
+                    $"ReadModel '{typeof(TReadModel).FullName}' with key '{keyValue}' was not found.");
+
+            mutate(existing);
+        }
+
+        return Task.CompletedTask;
+    }
+
+    public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        lock (_gate)
+        {
+            var keyValue = FormatKey(key);
+            if (!_itemsByKey.TryGetValue(keyValue, out var existing))
+                return Task.FromResult<TReadModel?>(null);
+
+            return Task.FromResult<TReadModel?>(Clone(existing));
+        }
+    }
+
+    public Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        var boundedTake = Math.Clamp(take, 1, _listTakeMax);
+
+        lock (_gate)
+        {
+            IEnumerable<TReadModel> query = _itemsByKey.Values;
+            if (_listSortSelector != null)
+                query = query.OrderByDescending(_listSortSelector);
+
+            var items = query
+                .Take(boundedTake)
+                .Select(Clone)
+                .ToList();
+
+            return Task.FromResult<IReadOnlyList<TReadModel>>(items);
+        }
+    }
+
+    private string ResolveReadModelKey(TReadModel readModel)
+    {
+        var key = _keySelector(readModel);
+        var keyValue = FormatKey(key);
+        if (keyValue.Length == 0)
+        {
+            throw new InvalidOperationException(
+                $"ReadModel '{typeof(TReadModel).FullName}' resolved an empty key for InMemory store.");
+        }
+
+        return keyValue;
+    }
+
+    private string FormatKey(TKey key) => _keyFormatter(key)?.Trim() ?? "";
+
+    private TReadModel Clone(TReadModel source)
+    {
+        var payload = JsonSerializer.Serialize(source, _jsonOptions);
+        var clone = JsonSerializer.Deserialize<TReadModel>(payload, _jsonOptions);
+        if (clone == null)
+            throw new InvalidOperationException(
+                $"Failed to clone read model '{typeof(TReadModel).FullName}' in InMemory provider.");
+
+        return clone;
+    }
+}
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj b/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj
index 8c3b9131a..27d6ad298 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj
@@ -13,6 +13,8 @@
     <ProjectReference Include="..\Aevatar.Workflow.Projection\Aevatar.Workflow.Projection.csproj" />
     <ProjectReference Include="..\Aevatar.Workflow.Presentation.AGUIAdapter\Aevatar.Workflow.Presentation.AGUIAdapter.csproj" />
     <ProjectReference Include="..\..\Aevatar.Configuration\Aevatar.Configuration.csproj" />
+    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
+    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Providers.InMemory\Aevatar.CQRS.Projection.Providers.InMemory.csproj" />
     <ProjectReference Include="..\..\Aevatar.Hosting\Aevatar.Hosting.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
index 628e62e02..c5fd4ac77 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
@@ -1,9 +1,15 @@
 using Aevatar.Configuration;
+using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
+using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 using Aevatar.Workflow.Application.DependencyInjection;
 using Aevatar.Workflow.Core;
 using Aevatar.Workflow.Presentation.AGUIAdapter;
 using Aevatar.Workflow.Presentation.AGUIAdapter.DependencyInjection;
+using Aevatar.Workflow.Projection.Configuration;
 using Aevatar.Workflow.Projection.DependencyInjection;
+using Aevatar.Workflow.Projection.ReadModels;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 
@@ -17,7 +23,25 @@ public static IServiceCollection AddWorkflowCapability(
     {
         services.AddAevatarWorkflow();
         services.AddWorkflowExecutionProjectionCQRS(options =>
-            configuration.GetSection("WorkflowExecutionProjection").Bind(options));
+        {
+            configuration.GetSection("WorkflowExecutionProjection").Bind(options);
+            ApplyGlobalReadModelOptions(configuration, options);
+        });
+        services.AddInMemoryReadModelStoreRegistration<WorkflowExecutionReport, string>(
+            keySelector: report => report.RootActorId,
+            keyFormatter: key => key,
+            listSortSelector: report => report.StartedAt,
+            listTakeMax: 200);
+        services.AddElasticsearchReadModelStoreRegistration<WorkflowExecutionReport, string>(
+            optionsFactory: _ =>
+            {
+                var providerOptions = new ElasticsearchProjectionReadModelStoreOptions();
+                configuration.GetSection("Projection:ReadModel:Providers:Elasticsearch").Bind(providerOptions);
+                return providerOptions;
+            },
+            indexScope: "workflow-execution-reports",
+            keySelector: report => report.RootActorId,
+            keyFormatter: key => key);
         services.AddWorkflowExecutionAGUIAdapter();
         services.AddWorkflowExecutionProjectionProjector<WorkflowExecutionAGUIEventProjector>();
         services.AddWorkflowApplication();
@@ -32,4 +56,20 @@ public static IServiceCollection AddWorkflowCapability(
             configuration.GetSection("WorkflowExecutionReportArtifacts").Bind(options));
         return services;
     }
+
+    private static void ApplyGlobalReadModelOptions(
+        IConfiguration configuration,
+        WorkflowExecutionProjectionOptions options)
+    {
+        var readModelOptions = new ProjectionReadModelRuntimeOptions();
+        configuration.GetSection("Projection:ReadModel").Bind(readModelOptions);
+
+        if (!string.IsNullOrWhiteSpace(readModelOptions.Provider))
+            options.ReadModelProvider = readModelOptions.Provider.Trim();
+
+        options.FailOnUnsupportedCapabilities = readModelOptions.FailOnUnsupportedCapabilities;
+        options.ReadModelBindings.Clear();
+        foreach (var item in readModelOptions.Bindings)
+            options.ReadModelBindings[item.Key] = item.Value;
+    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
index 5998efcc1..c0e1c932c 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
@@ -6,6 +6,11 @@ namespace Aevatar.Workflow.Projection.Configuration;
 public sealed class WorkflowExecutionProjectionOptions
     : IProjectionRuntimeOptions
 {
+    public WorkflowExecutionProjectionOptions()
+    {
+        ReadModelBindings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+    }
+
     /// <summary>
     /// Enables projection pipeline registration.
     /// </summary>
@@ -36,4 +41,19 @@ public bool EnableRunQueryEndpoints
     /// Extra grace wait before force-finalize when completion status is timeout.
     /// </summary>
     public int RunProjectionFinalizeGraceTimeoutMs { get; set; } = 1500;
+
+    /// <summary>
+    /// Read-model store provider name, e.g. InMemory/Elasticsearch.
+    /// </summary>
+    public string ReadModelProvider { get; set; } = ProjectionReadModelProviderNames.InMemory;
+
+    /// <summary>
+    /// Whether unsupported provider capabilities should fail fast during startup registration.
+    /// </summary>
+    public bool FailOnUnsupportedCapabilities { get; set; } = true;
+
+    /// <summary>
+    /// Optional read-model binding requirements (ReadModelName -> IndexKind).
+    /// </summary>
+    public Dictionary<string, string> ReadModelBindings { get; }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index 5b3884013..91c1b02de 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -1,6 +1,5 @@
 using Aevatar.Workflow.Projection.Configuration;
 using Aevatar.Workflow.Projection.Orchestration;
-using Aevatar.Workflow.Projection.Stores;
 using Aevatar.Workflow.Projection.ReadModels;
 using Aevatar.Workflow.Application.Abstractions.Projections;
 using Aevatar.Workflow.Application.Abstractions.Runs;
@@ -34,8 +33,7 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.TryAddSingleton<IProjectionRuntimeOptions>(sp =>
             sp.GetRequiredService<WorkflowExecutionProjectionOptions>());
         services.TryAddSingleton<IEventDeduplicator, PassthroughEventDeduplicator>();
-
-        services.TryAddSingleton<IProjectionReadModelStore<WorkflowExecutionReport, string>, InMemoryWorkflowExecutionReadModelStore>();
+        RegisterWorkflowReadModelStoreSelector(services);
         services.TryAddSingleton<IProjectionClock, SystemProjectionClock>();
         services.TryAddSingleton<IWorkflowExecutionProjectionContextFactory, DefaultWorkflowExecutionProjectionContextFactory>();
         services.TryAddSingleton<WorkflowExecutionReadModelMapper>();
@@ -117,6 +115,83 @@ private static void RegisterFromAssembly(IServiceCollection services, Assembly a
             ProjectionProjectorContract);
     }
 
+    private static void RegisterWorkflowReadModelStoreSelector(IServiceCollection services)
+    {
+        services.Replace(ServiceDescriptor.Singleton<IProjectionReadModelStore<WorkflowExecutionReport, string>>(sp =>
+        {
+            var options = sp.GetRequiredService<WorkflowExecutionProjectionOptions>();
+            var requirements = ResolveReadModelRequirements(options, typeof(WorkflowExecutionReport));
+            var selectionOptions = new ProjectionReadModelStoreSelectionOptions
+            {
+                RequestedProviderName = NormalizeProviderName(options.ReadModelProvider),
+                FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
+            };
+
+            var registration = ProjectionReadModelStoreSelector.Select(
+                sp.GetServices<IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>>(),
+                selectionOptions,
+                requirements);
+
+            return registration.Create(sp);
+        }));
+    }
+
+    private static ProjectionReadModelRequirements ResolveReadModelRequirements(
+        WorkflowExecutionProjectionOptions options,
+        Type readModelType)
+    {
+        if (!TryResolveIndexKindBinding(options.ReadModelBindings, readModelType, out var requiredKind))
+            return new ProjectionReadModelRequirements();
+
+        return new ProjectionReadModelRequirements(
+            requiresIndexing: true,
+            requiredIndexKinds: [requiredKind]);
+    }
+
+    private static bool TryResolveIndexKindBinding(
+        IReadOnlyDictionary<string, string> readModelBindings,
+        Type readModelType,
+        out ProjectionReadModelIndexKind requiredKind)
+    {
+        requiredKind = ProjectionReadModelIndexKind.None;
+        if (readModelBindings.Count == 0)
+            return false;
+
+        if (!TryGetBinding(readModelBindings, readModelType.Name, out var configuredIndexKind) &&
+            !TryGetBinding(readModelBindings, readModelType.FullName ?? "", out configuredIndexKind))
+            return false;
+
+        if (!Enum.TryParse<ProjectionReadModelIndexKind>(configuredIndexKind, true, out requiredKind) ||
+            requiredKind == ProjectionReadModelIndexKind.None)
+        {
+            throw new InvalidOperationException(
+                $"Invalid ReadModelBindings value '{configuredIndexKind}' for '{readModelType.FullName}'. " +
+                $"Allowed values: {ProjectionReadModelIndexKind.Document}, {ProjectionReadModelIndexKind.Graph}.");
+        }
+
+        return true;
+    }
+
+    private static bool TryGetBinding(
+        IReadOnlyDictionary<string, string> readModelBindings,
+        string key,
+        out string value)
+    {
+        if (key.Length > 0 && readModelBindings.TryGetValue(key, out value!))
+            return true;
+
+        value = "";
+        return false;
+    }
+
+    private static string NormalizeProviderName(string providerName)
+    {
+        if (string.IsNullOrWhiteSpace(providerName))
+            return ProjectionReadModelProviderNames.InMemory;
+
+        return providerName.Trim();
+    }
+
     private sealed class PassthroughEventDeduplicator : IEventDeduplicator
     {
         public Task<bool> TryRecordAsync(string eventId)
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index 7be2c0de0..faab7813c 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -16,8 +16,9 @@
   - `WorkflowProjectionQueryReader`（query 映射读取）
 - 领域上下文：`IWorkflowExecutionProjectionContextFactory`、`WorkflowExecutionProjectionContext`
 - 实时输出契约：`WorkflowRunEvent`、`IWorkflowRunEventSink`、`WorkflowRunEventChannel`（定义于 `Aevatar.Workflow.Application.Abstractions`）
-- 领域投影实现：reducers、projectors、read model store
+- 领域投影实现：reducers、projectors、read model（不包含 Provider Store 实现）
 - 领域 DI 组合：`AddWorkflowExecutionProjectionCQRS(...)`
+- Provider 能力校验：基于 `ProjectionReadModelCapabilityValidator` 在装配期校验 `ReadModelBindings` 与 Provider 能力匹配
 
 本项目依赖：
 
@@ -73,9 +74,29 @@ FAQ：
 - 新增 projector：
   - 实现 `IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>`
   - 在 DI 中注册
-- 替换存储：
-  - 实现 `IProjectionReadModelStore<WorkflowExecutionReport, string>`
-  - 使用自定义实现替换默认内存存储
+- 扩展 ReadModel Provider（推荐）：
+  - 实现 `IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>`
+  - 在 Infrastructure 侧注册（例如 `AddInMemoryReadModelStoreRegistration` / `AddElasticsearchReadModelStoreRegistration`）
+  - 通过 `WorkflowExecutionProjection:ReadModelProvider` 或 `Projection:ReadModel:Provider` 选择 Provider
+- 直接替换 Store（仅测试/临时场景）：
+  - 调用 `AddWorkflowExecutionProjectionReadModelStore<TStore>()` 直接覆盖 `IProjectionReadModelStore<WorkflowExecutionReport, string>`
+  - 该方式会绕过 Provider 选择与能力校验链路，不建议用于生产装配
+
+## Provider 配置
+
+- `WorkflowExecutionProjection:ReadModelProvider`：`InMemory`（默认）/`Elasticsearch`
+- `WorkflowExecutionProjection:FailOnUnsupportedCapabilities`：能力不匹配时是否 fail-fast（默认 `true`）
+- `WorkflowExecutionProjection:ReadModelBindings`：ReadModel -> IndexKind 约束（如 `WorkflowExecutionReport: Document`）
+- 推荐统一配置入口：`Projection:ReadModel:*`（由 Infrastructure 映射到 Workflow 投影选项）
+- `Projection:ReadModel:Provider`：全局默认 Provider（当前由 `WorkflowCapabilityServiceCollectionExtensions` 覆盖到模块选项）
+- `Projection:ReadModel:FailOnUnsupportedCapabilities`：全局 fail-fast 策略
+- `Projection:ReadModel:Bindings:*`：全局 ReadModel -> IndexKind 约束
+- `Projection:ReadModel:Providers:Elasticsearch:Endpoints`：Elasticsearch endpoint 列表
+- `Projection:ReadModel:Providers:Elasticsearch:IndexPrefix`：索引前缀
+- `Projection:ReadModel:Providers:Elasticsearch:RequestTimeoutMs`：请求超时
+- `Projection:ReadModel:Providers:Elasticsearch:ListTakeMax`：`ListAsync` 上限
+- `Projection:ReadModel:Providers:Elasticsearch:AutoCreateIndex`：是否自动建索引
+- `Projection:ReadModel:Providers:Elasticsearch:Username/Password`：可选基础认证
 - 扩展 run 输出协议：
   - 保持 `WorkflowRunEvent` 不变，新增 presentation adapter 进行协议映射
   - 不改 Application 用例编排代码
diff --git a/src/workflow/Aevatar.Workflow.Projection/Stores/InMemoryWorkflowExecutionReadModelStore.cs b/src/workflow/Aevatar.Workflow.Projection/Stores/InMemoryWorkflowExecutionReadModelStore.cs
deleted file mode 100644
index a73cd78a8..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Stores/InMemoryWorkflowExecutionReadModelStore.cs
+++ /dev/null
@@ -1,132 +0,0 @@
-using Aevatar.Workflow.Projection.ReadModels;
-
-namespace Aevatar.Workflow.Projection.Stores;
-
-/// <summary>
-/// In-memory store for chat run read models.
-/// </summary>
-public sealed class InMemoryWorkflowExecutionReadModelStore
-    : IProjectionReadModelStore<WorkflowExecutionReport, string>
-{
-    private readonly object _gate = new();
-    private readonly Dictionary<string, WorkflowExecutionReport> _reportsByActorId = new(StringComparer.Ordinal);
-
-    public Task UpsertAsync(WorkflowExecutionReport report, CancellationToken ct = default)
-    {
-        ct.ThrowIfCancellationRequested();
-        lock (_gate)
-            _reportsByActorId[report.RootActorId] = CloneReport(report);
-        return Task.CompletedTask;
-    }
-
-    public Task MutateAsync(string actorId, Action<WorkflowExecutionReport> mutate, CancellationToken ct = default)
-    {
-        ct.ThrowIfCancellationRequested();
-        lock (_gate)
-        {
-            if (!_reportsByActorId.TryGetValue(actorId, out var report))
-                throw new WorkflowExecutionReadModelNotFoundException(actorId);
-
-            mutate(report);
-        }
-
-        return Task.CompletedTask;
-    }
-
-    public Task<WorkflowExecutionReport?> GetAsync(string actorId, CancellationToken ct = default)
-    {
-        ct.ThrowIfCancellationRequested();
-        lock (_gate)
-        {
-            if (!_reportsByActorId.TryGetValue(actorId, out var report))
-                return Task.FromResult<WorkflowExecutionReport?>(null);
-
-            return Task.FromResult<WorkflowExecutionReport?>(CloneReport(report));
-        }
-    }
-
-    public Task<IReadOnlyList<WorkflowExecutionReport>> ListAsync(int take = 50, CancellationToken ct = default)
-    {
-        ct.ThrowIfCancellationRequested();
-        var boundedTake = Math.Clamp(take, 1, 200);
-        lock (_gate)
-        {
-            var items = _reportsByActorId.Values
-                .OrderByDescending(x => x.StartedAt)
-                .Take(boundedTake)
-                .Select(CloneReport)
-                .ToList();
-            return Task.FromResult<IReadOnlyList<WorkflowExecutionReport>>(items);
-        }
-    }
-
-    private static WorkflowExecutionReport CloneReport(WorkflowExecutionReport source) => new()
-    {
-        ReportVersion = source.ReportVersion,
-        ProjectionScope = source.ProjectionScope,
-        TopologySource = source.TopologySource,
-        CompletionStatus = source.CompletionStatus,
-        WorkflowName = source.WorkflowName,
-        RootActorId = source.RootActorId,
-        CommandId = source.CommandId,
-        StateVersion = source.StateVersion,
-        LastEventId = source.LastEventId,
-        StartedAt = source.StartedAt,
-        EndedAt = source.EndedAt,
-        DurationMs = source.DurationMs,
-        Success = source.Success,
-        Input = source.Input,
-        FinalOutput = source.FinalOutput,
-        FinalError = source.FinalError,
-        Topology = source.Topology.Select(x => new WorkflowExecutionTopologyEdge(x.Parent, x.Child)).ToList(),
-        Steps = source.Steps.Select(CloneStep).ToList(),
-        RoleReplies = source.RoleReplies.Select(CloneRoleReply).ToList(),
-        Timeline = source.Timeline.Select(CloneTimelineEvent).ToList(),
-        Summary = CloneSummary(source.Summary),
-    };
-
-    private static WorkflowExecutionStepTrace CloneStep(WorkflowExecutionStepTrace source) => new()
-    {
-        StepId = source.StepId,
-        StepType = source.StepType,
-        TargetRole = source.TargetRole,
-        RequestedAt = source.RequestedAt,
-        CompletedAt = source.CompletedAt,
-        Success = source.Success,
-        WorkerId = source.WorkerId,
-        OutputPreview = source.OutputPreview,
-        Error = source.Error,
-        RequestParameters = source.RequestParameters.ToDictionary(x => x.Key, x => x.Value, StringComparer.Ordinal),
-        CompletionMetadata = source.CompletionMetadata.ToDictionary(x => x.Key, x => x.Value, StringComparer.Ordinal),
-    };
-
-    private static WorkflowExecutionRoleReply CloneRoleReply(WorkflowExecutionRoleReply source) => new()
-    {
-        Timestamp = source.Timestamp,
-        RoleId = source.RoleId,
-        SessionId = source.SessionId,
-        Content = source.Content,
-        ContentLength = source.ContentLength,
-    };
-
-    private static WorkflowExecutionTimelineEvent CloneTimelineEvent(WorkflowExecutionTimelineEvent source) => new()
-    {
-        Timestamp = source.Timestamp,
-        Stage = source.Stage,
-        Message = source.Message,
-        AgentId = source.AgentId,
-        StepId = source.StepId,
-        StepType = source.StepType,
-        EventType = source.EventType,
-        Data = source.Data.ToDictionary(x => x.Key, x => x.Value, StringComparer.Ordinal),
-    };
-
-    private static WorkflowExecutionSummary CloneSummary(WorkflowExecutionSummary source) => new()
-    {
-        TotalSteps = source.TotalSteps,
-        RequestedSteps = source.RequestedSteps,
-        CompletedSteps = source.CompletedSteps,
-        RoleReplyCount = source.RoleReplyCount,
-        StepTypeCounts = source.StepTypeCounts.ToDictionary(x => x.Key, x => x.Value, StringComparer.OrdinalIgnoreCase),
-    };
-}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Stores/WorkflowExecutionReadModelNotFoundException.cs b/src/workflow/Aevatar.Workflow.Projection/Stores/WorkflowExecutionReadModelNotFoundException.cs
deleted file mode 100644
index 54203f9c0..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Stores/WorkflowExecutionReadModelNotFoundException.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-namespace Aevatar.Workflow.Projection.Stores;
-
-public sealed class WorkflowExecutionReadModelNotFoundException : KeyNotFoundException
-{
-    public string ActorId { get; }
-
-    public WorkflowExecutionReadModelNotFoundException(string actorId)
-        : base($"Workflow actor read model not found: '{actorId}'.")
-    {
-        ActorId = actorId;
-    }
-}
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
new file mode 100644
index 000000000..25746841d
--- /dev/null
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
@@ -0,0 +1,134 @@
+using FluentAssertions;
+
+namespace Aevatar.CQRS.Projection.Core.Tests;
+
+public class ProjectionReadModelStoreSelectorTests
+{
+    [Fact]
+    public void Select_WhenSingleProviderRegistered_ShouldReturnSingleProvider()
+    {
+        var registrations = new[]
+        {
+            CreateRegistration("inmemory", supportsIndexing: false),
+        };
+
+        var selected = ProjectionReadModelStoreSelector.Select(
+            registrations,
+            new ProjectionReadModelStoreSelectionOptions(),
+            new ProjectionReadModelRequirements());
+
+        selected.ProviderName.Should().Be("inmemory");
+    }
+
+    [Fact]
+    public void Select_WhenMultipleProvidersAndNoRequestedProvider_ShouldThrow()
+    {
+        var registrations = new[]
+        {
+            CreateRegistration("inmemory", supportsIndexing: false),
+            CreateRegistration("elasticsearch", supportsIndexing: true, indexKinds: [ProjectionReadModelIndexKind.Document]),
+        };
+
+        Action act = () => ProjectionReadModelStoreSelector.Select(
+            registrations,
+            new ProjectionReadModelStoreSelectionOptions(),
+            new ProjectionReadModelRequirements());
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Multiple providers are registered*");
+    }
+
+    [Fact]
+    public void Select_WhenRequestedProviderMissing_ShouldThrow()
+    {
+        var registrations = new[]
+        {
+            CreateRegistration("inmemory", supportsIndexing: false),
+        };
+
+        Action act = () => ProjectionReadModelStoreSelector.Select(
+            registrations,
+            new ProjectionReadModelStoreSelectionOptions
+            {
+                RequestedProviderName = "elasticsearch",
+            },
+            new ProjectionReadModelRequirements());
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Requested provider*is not registered*");
+    }
+
+    [Fact]
+    public void Select_WhenCapabilitiesUnsupportedAndFailFastEnabled_ShouldThrow()
+    {
+        var registrations = new[]
+        {
+            CreateRegistration("inmemory", supportsIndexing: false),
+        };
+
+        Action act = () => ProjectionReadModelStoreSelector.Select(
+            registrations,
+            new ProjectionReadModelStoreSelectionOptions
+            {
+                RequestedProviderName = "inmemory",
+                FailOnUnsupportedCapabilities = true,
+            },
+            new ProjectionReadModelRequirements(
+                requiresIndexing: true,
+                requiredIndexKinds: [ProjectionReadModelIndexKind.Document]));
+
+        act.Should().Throw<ProjectionReadModelCapabilityValidationException>();
+    }
+
+    [Fact]
+    public void Select_WhenCapabilitiesUnsupportedAndFailFastDisabled_ShouldReturnProvider()
+    {
+        var registrations = new[]
+        {
+            CreateRegistration("inmemory", supportsIndexing: false),
+        };
+
+        var selected = ProjectionReadModelStoreSelector.Select(
+            registrations,
+            new ProjectionReadModelStoreSelectionOptions
+            {
+                RequestedProviderName = "inmemory",
+                FailOnUnsupportedCapabilities = false,
+            },
+            new ProjectionReadModelRequirements(
+                requiresIndexing: true,
+                requiredIndexKinds: [ProjectionReadModelIndexKind.Document]));
+
+        selected.ProviderName.Should().Be("inmemory");
+    }
+
+    private static IProjectionReadModelStoreRegistration<TestReadModel, string> CreateRegistration(
+        string providerName,
+        bool supportsIndexing,
+        IEnumerable<ProjectionReadModelIndexKind>? indexKinds = null)
+    {
+        var capabilities = new ProjectionReadModelProviderCapabilities(
+            providerName,
+            supportsIndexing,
+            indexKinds);
+
+        return new DelegateProjectionReadModelStoreRegistration<TestReadModel, string>(
+            providerName,
+            capabilities,
+            _ => new NoopStore());
+    }
+
+    private sealed class NoopStore : IProjectionReadModelStore<TestReadModel, string>
+    {
+        public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default) => Task.CompletedTask;
+
+        public Task MutateAsync(string key, Action<TestReadModel> mutate, CancellationToken ct = default) => Task.CompletedTask;
+
+        public Task<TestReadModel?> GetAsync(string key, CancellationToken ct = default) => Task.FromResult<TestReadModel?>(null);
+
+        public Task<IReadOnlyList<TestReadModel>> ListAsync(int take = 50, CancellationToken ct = default) =>
+            Task.FromResult<IReadOnlyList<TestReadModel>>([]);
+    }
+
+    private sealed class TestReadModel;
+}
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index ae709a4c6..eb3d69f1c 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -1,4 +1,9 @@
 using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
+using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 using Aevatar.AI.Projection.Reducers;
 using Aevatar.Workflow.Extensions.AIProjection;
 using Aevatar.Workflow.Projection;
@@ -15,10 +20,96 @@ namespace Aevatar.Workflow.Host.Api.Tests;
 
 public class WorkflowExecutionProjectionRegistrationTests
 {
+    [Fact]
+    public void AddWorkflowExecutionProjectionCQRS_ShouldUseInMemoryProviderByDefault()
+    {
+        var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
+        services.AddWorkflowExecutionProjectionCQRS();
+
+        using var provider = services.BuildServiceProvider();
+        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+
+        store.Should().BeOfType<InMemoryProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        var metadata = store.Should().BeAssignableTo<IProjectionReadModelStoreProviderMetadata>().Subject;
+        metadata.ProviderCapabilities.ProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
+    }
+
+    [Fact]
+    public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchConfigured_ShouldResolveElasticsearchStore()
+    {
+        var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
+        RegisterElasticsearchProvider(services);
+        services.AddWorkflowExecutionProjectionCQRS(options =>
+            options.ReadModelProvider = ProjectionReadModelProviderNames.Elasticsearch);
+
+        using var provider = services.BuildServiceProvider();
+        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+
+        store.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        var metadata = store.Should().BeAssignableTo<IProjectionReadModelStoreProviderMetadata>().Subject;
+        metadata.ProviderCapabilities.SupportsIndexing.Should().BeTrue();
+        metadata.ProviderCapabilities.IndexKinds.Should().Contain(ProjectionReadModelIndexKind.Document);
+    }
+
+    [Fact]
+    public void AddWorkflowExecutionProjectionCQRS_WhenProviderUnsupported_ShouldThrow()
+    {
+        var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
+        services.AddWorkflowExecutionProjectionCQRS(options =>
+            options.ReadModelProvider = "UnknownProvider");
+        using var provider = services.BuildServiceProvider();
+
+        Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Requested provider*is not registered*");
+    }
+
+    [Fact]
+    public void AddWorkflowExecutionProjectionCQRS_WhenBindingRequiresUnsupportedCapabilities_ShouldFailFast()
+    {
+        var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
+        services.AddWorkflowExecutionProjectionCQRS(options =>
+        {
+            options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory;
+            options.ReadModelBindings[nameof(WorkflowExecutionReport)] = ProjectionReadModelIndexKind.Document.ToString();
+            options.FailOnUnsupportedCapabilities = true;
+        });
+        using var provider = services.BuildServiceProvider();
+
+        Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+
+        act.Should().Throw<ProjectionReadModelCapabilityValidationException>()
+            .Where(ex => ex.ReadModelType == typeof(WorkflowExecutionReport));
+    }
+
+    [Fact]
+    public void AddWorkflowExecutionProjectionCQRS_WhenFailFastDisabled_ShouldAllowUnsupportedCapabilities()
+    {
+        var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
+        services.AddWorkflowExecutionProjectionCQRS(options =>
+        {
+            options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory;
+            options.ReadModelBindings[nameof(WorkflowExecutionReport)] = ProjectionReadModelIndexKind.Document.ToString();
+            options.FailOnUnsupportedCapabilities = false;
+        });
+        using var provider = services.BuildServiceProvider();
+
+        Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+
+        act.Should().NotThrow();
+    }
+
     [Fact]
     public async Task AddWorkflowExecutionProjectionReducer_ShouldSupportExternalReducer()
     {
         var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
         services.AddWorkflowExecutionProjectionCQRS();
         services.AddWorkflowExecutionProjectionReducer<CustomChatRequestReducer>();
 
@@ -49,6 +140,7 @@ public async Task AddWorkflowExecutionProjectionReducer_ShouldSupportExternalRed
     public async Task AddWorkflowExecutionProjectionExtensionsFromAssembly_ShouldAutoRegisterReducer()
     {
         var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
         services.AddWorkflowExecutionProjectionCQRS();
         services.AddWorkflowExecutionProjectionExtensionsFromAssembly(typeof(CustomChatRequestReducer).Assembly);
 
@@ -79,6 +171,7 @@ public async Task AddWorkflowExecutionProjectionExtensionsFromAssembly_ShouldAut
     public void AddWorkflowExecutionProjectionCQRS_MultipleCalls_ShouldUseLastOptions()
     {
         var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
         services.AddWorkflowExecutionProjectionCQRS(options => options.Enabled = true);
         services.AddWorkflowExecutionProjectionCQRS(options => options.Enabled = false);
 
@@ -92,10 +185,28 @@ public void AddWorkflowExecutionProjectionCQRS_MultipleCalls_ShouldUseLastOption
         store.Should().NotBeNull();
     }
 
+    [Fact]
+    public void AddWorkflowExecutionProjectionCQRS_MultipleCalls_ShouldUseLastProvider()
+    {
+        var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
+        RegisterElasticsearchProvider(services);
+        services.AddWorkflowExecutionProjectionCQRS(options =>
+            options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory);
+        services.AddWorkflowExecutionProjectionCQRS(options =>
+            options.ReadModelProvider = ProjectionReadModelProviderNames.Elasticsearch);
+
+        using var provider = services.BuildServiceProvider();
+        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+
+        store.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
+    }
+
     [Fact]
     public void AddWorkflowExecutionProjectionCQRS_ShouldExposeGenericProjectionAbstractions()
     {
         var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
         services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
@@ -114,6 +225,7 @@ public void AddWorkflowExecutionProjectionCQRS_ShouldExposeGenericProjectionAbst
     public void AddWorkflowExecutionProjectionCQRS_WithAIExtensions_ShouldRegisterDefaultAIReducers()
     {
         var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
         services.AddWorkflowExecutionProjectionCQRS();
         services.AddWorkflowAIProjectionExtensions();
 
@@ -144,6 +256,7 @@ public void AddWorkflowExecutionProjectionCQRS_WithAIExtensions_ShouldRegisterDe
     public async Task AddWorkflowExecutionProjectionCQRS_WithAIExtensions_ShouldProjectAIEventsWithoutWorkflowApplier()
     {
         var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
         services.AddWorkflowExecutionProjectionCQRS();
         services.AddWorkflowAIProjectionExtensions();
 
@@ -188,6 +301,28 @@ public async Task AddWorkflowExecutionProjectionCQRS_WithAIExtensions_ShouldProj
         Direction = EventDirection.Down,
     };
 
+    private static void RegisterElasticsearchProvider(IServiceCollection services)
+    {
+        services.AddElasticsearchReadModelStoreRegistration<WorkflowExecutionReport, string>(
+            optionsFactory: _ => new ElasticsearchProjectionReadModelStoreOptions
+            {
+                Endpoints = ["http://localhost:9200"],
+                IndexPrefix = "aevatar-test",
+                AutoCreateIndex = false,
+            },
+            indexScope: "workflow-execution-reports",
+            keySelector: report => report.RootActorId,
+            keyFormatter: key => key);
+    }
+
+    private static void RegisterInMemoryProvider(IServiceCollection services)
+    {
+        services.AddInMemoryReadModelStoreRegistration<WorkflowExecutionReport, string>(
+            keySelector: report => report.RootActorId,
+            keyFormatter: key => key,
+            listSortSelector: report => report.StartedAt);
+    }
+
     public sealed class CustomChatRequestReducer : WorkflowExecutionEventReducerBase<ChatRequestEvent>
     {
         protected override bool Reduce(
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
index 0f35fb61a..e9c6f5e97 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
@@ -3,6 +3,7 @@
 using Aevatar.CQRS.Projection.Abstractions;
 using Aevatar.CQRS.Projection.Core.Orchestration;
 using Aevatar.CQRS.Projection.Core.Streaming;
+using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 using Aevatar.Foundation.Abstractions.Persistence;
 using Aevatar.Foundation.Abstractions.Deduplication;
 using Aevatar.Foundation.Runtime.Actors;
@@ -19,7 +20,6 @@
 using Aevatar.Workflow.Projection.Projectors;
 using Aevatar.Workflow.Projection.ReadModels;
 using Aevatar.Workflow.Projection.Reducers;
-using Aevatar.Workflow.Projection.Stores;
 using FluentAssertions;
 using Google.Protobuf;
 using Google.Protobuf.WellKnownTypes;
@@ -597,7 +597,7 @@ private static WorkflowExecutionProjectionService CreateServiceForStartFailure(
         IProjectionOwnershipCoordinator ownershipCoordinator,
         IProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>> lifecycle)
     {
-        var store = new InMemoryWorkflowExecutionReadModelStore();
+        var store = CreateStore();
         var clock = new SystemProjectionClock();
         var runEventHub = new NoOpWorkflowRunEventHub();
         var mapper = new WorkflowExecutionReadModelMapper();
@@ -650,6 +650,11 @@ [new AIToolResultProjectionApplier<WorkflowExecutionReport, WorkflowExecutionPro
         new WorkflowCompletedEventReducer(),
     ];
 
+    private static InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> CreateStore() => new(
+        keySelector: report => report.RootActorId,
+        keyFormatter: key => key,
+        listSortSelector: report => report.StartedAt);
+
     private static EventEnvelope Wrap(IMessage evt, string publisherId = "root") => new()
     {
         Id = Guid.NewGuid().ToString("N"),
@@ -704,7 +709,7 @@ public MutableProjectionClock(DateTimeOffset utcNow)
     private sealed class ObservableWorkflowExecutionReadModelStore
         : IProjectionReadModelStore<WorkflowExecutionReport, string>
     {
-        private readonly InMemoryWorkflowExecutionReadModelStore _inner = new();
+        private readonly InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> _inner = CreateStore();
         private readonly object _gate = new();
         private readonly List<StoreWaiter> _waiters = [];
 
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
index 15b875aa2..f6858d54d 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
@@ -2,13 +2,13 @@
 using Aevatar.AI.Projection.Appliers;
 using Aevatar.CQRS.Projection.Abstractions;
 using Aevatar.CQRS.Projection.Core.Orchestration;
+using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 using Aevatar.Foundation.Abstractions.Deduplication;
 using Aevatar.Workflow.Projection;
 using Aevatar.Workflow.Projection.ReadModels;
 using Aevatar.Workflow.Projection.Orchestration;
 using Aevatar.Workflow.Projection.Projectors;
 using Aevatar.Workflow.Projection.Reducers;
-using Aevatar.Workflow.Projection.Stores;
 using Aevatar.Workflow.Core;
 using FluentAssertions;
 using Google.Protobuf;
@@ -20,6 +20,10 @@ namespace Aevatar.Workflow.Host.Api.Tests;
 public class WorkflowExecutionReadModelProjectorTests
 {
     private static IEventDeduplicator CreateDeduplicator() => new TestEventDeduplicator();
+    private static InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> CreateStore() => new(
+        keySelector: report => report.RootActorId,
+        keyFormatter: key => key,
+        listSortSelector: report => report.StartedAt);
 
     private static IReadOnlyList<IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>> BuildReducers() =>
     [
@@ -55,7 +59,7 @@ private static EventEnvelope Wrap(
     [Fact]
     public async Task Projector_ShouldBuildRunReadModel_EndToEnd()
     {
-        var store = new InMemoryWorkflowExecutionReadModelStore();
+        var store = CreateStore();
         var projector = new WorkflowExecutionReadModelProjector(store, CreateDeduplicator(), BuildReducers());
         var coordinator = new ProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>( [projector]);
 
@@ -117,7 +121,7 @@ await coordinator.ProjectAsync(context, Wrap(new WorkflowCompletedEvent
     [Fact]
     public async Task Projector_ShouldIgnoreUnknownEvents()
     {
-        var store = new InMemoryWorkflowExecutionReadModelStore();
+        var store = CreateStore();
         var projector = new WorkflowExecutionReadModelProjector(store, CreateDeduplicator(), BuildReducers());
         var coordinator = new ProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>( [projector]);
 
@@ -147,7 +151,7 @@ await coordinator.ProjectAsync(context, Wrap(new ChatRequestEvent
     [Fact]
     public async Task Projector_ShouldDeduplicateByEnvelopeId()
     {
-        var store = new InMemoryWorkflowExecutionReadModelStore();
+        var store = CreateStore();
         var projector = new WorkflowExecutionReadModelProjector(store, CreateDeduplicator(), BuildReducers());
         var coordinator = new ProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>( [projector]);
 
@@ -183,7 +187,7 @@ public async Task Projector_ShouldDeduplicateByEnvelopeId()
     [Fact]
     public async Task Projector_NoOpReducer_ShouldNotAdvanceStateVersion()
     {
-        var store = new InMemoryWorkflowExecutionReadModelStore();
+        var store = CreateStore();
         IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>[] reducers =
         [
             new TextMessageStartProjectionReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>([]),
@@ -219,7 +223,7 @@ await coordinator.ProjectAsync(context, Wrap(new AIEvents.TextMessageStartEvent
     [Fact]
     public async Task Projector_ShouldUseEnvelopeTimestamp_WhenProvided()
     {
-        var store = new InMemoryWorkflowExecutionReadModelStore();
+        var store = CreateStore();
         var projector = new WorkflowExecutionReadModelProjector(store, CreateDeduplicator(), BuildReducers());
         var coordinator = new ProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>( [projector]);
 
@@ -252,7 +256,7 @@ await coordinator.ProjectAsync(context, Wrap(new StartWorkflowEvent
     [Fact]
     public async Task Store_List_ShouldReturnNewestFirst()
     {
-        var store = new InMemoryWorkflowExecutionReadModelStore();
+        var store = CreateStore();
         await store.UpsertAsync(new WorkflowExecutionReport
         {
             WorkflowName = "w",
@@ -279,9 +283,9 @@ await store.UpsertAsync(new WorkflowExecutionReport
     [Fact]
     public async Task Store_MutateMissingRun_ShouldThrow()
     {
-        var store = new InMemoryWorkflowExecutionReadModelStore();
+        var store = CreateStore();
         Func<Task> act = () => store.MutateAsync("missing", _ => { });
-        await act.Should().ThrowAsync<KeyNotFoundException>();
+        await act.Should().ThrowAsync<InvalidOperationException>();
     }
 
     private sealed class TestEventDeduplicator : IEventDeduplicator
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index e2d38efea..2ddfd7f7f 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -9,7 +9,6 @@
 using Aevatar.Workflow.Extensions.Hosting;
 using Aevatar.Workflow.Infrastructure.Runs;
 using Aevatar.Workflow.Projection.ReadModels;
-using Aevatar.Workflow.Projection.Stores;
 using FluentAssertions;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.Extensions.DependencyInjection;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
index 698d568d5..dc94ce5f6 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
@@ -1,9 +1,9 @@
 using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 using Aevatar.Workflow.Application.Abstractions.Runs;
 using Aevatar.Workflow.Projection;
 using Aevatar.Workflow.Projection.Orchestration;
 using Aevatar.Workflow.Projection.ReadModels;
-using Aevatar.Workflow.Projection.Stores;
 using FluentAssertions;
 using System.Runtime.CompilerServices;
 
@@ -79,7 +79,7 @@ public async Task ReadModelUpdater_ShouldRefreshMetadataAndMarkStopped()
     {
         var startedAt = new DateTimeOffset(2026, 2, 21, 12, 0, 0, TimeSpan.Zero);
         var stoppedAt = startedAt.AddMinutes(3);
-        var store = new InMemoryWorkflowExecutionReadModelStore();
+        var store = CreateStore();
         await store.UpsertAsync(new WorkflowExecutionReport
         {
             RootActorId = "actor-2",
@@ -123,7 +123,7 @@ await store.MutateAsync("actor-2", report =>
     [Fact]
     public async Task QueryReader_ShouldMapSnapshotsAndSortTimeline()
     {
-        var store = new InMemoryWorkflowExecutionReadModelStore();
+        var store = CreateStore();
         await store.UpsertAsync(new WorkflowExecutionReport
         {
             RootActorId = "actor-3",
@@ -328,6 +328,11 @@ public async Task LiveSinkForwarder_WhenPolicyDoesNotHandle_ShouldRethrowOrigina
         policy.Calls.Should().ContainSingle();
     }
 
+    private static InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> CreateStore() => new(
+        keySelector: report => report.RootActorId,
+        keyFormatter: key => key,
+        listSortSelector: report => report.StartedAt);
+
     private static WorkflowExecutionRuntimeLease CreateLease(string actorId, string commandId) => new(
         new WorkflowExecutionProjectionContext
         {

From 08c1ce2b23224ec955ea247626b4d433e6d4a509 Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Mon, 23 Feb 2026 22:55:33 +0800
Subject: [PATCH 03/46] Enhance Event Sourcing and Add Neo4j Provider Support

- Updated the Event Sourcing documentation to clarify the architecture and usage guidelines, ensuring consistency with the latest implementation.
- Introduced a new Neo4j provider for read models, enabling graph-based storage and retrieval capabilities.
- Added abstractions for provider registration, selection, and capability validation, enhancing the flexibility of the read model architecture.
- Implemented structured logging for write operations in the Neo4j provider, improving observability and debugging.
- Refactored existing abstractions to accommodate the new provider model and updated related documentation for clarity.
---
 aevatar.slnx                                  |   3 +
 docs/EVENT_SOURCING.md                        | 230 +++------
 ...ng-elasticsearch-readmodel-requirements.md | 442 ++++++------------
 ...ider-based-readmodel-full-refactor-plan.md | 267 -----------
 .../IProjectionReadModelBindingResolver.cs    |   8 +
 ...IProjectionReadModelCapabilityValidator.cs |  13 +
 .../IProjectionReadModelProviderRegistry.cs   |   8 +
 .../IProjectionReadModelProviderSelector.cs   |  10 +
 .../IProjectionReadModelStoreFactory.cs       |  10 +
 .../ProjectionProviderSelectionException.cs   |  37 ++
 .../ProjectionReadModelBindingException.cs    |  33 ++
 .../Abstractions/ProjectionReadModelMode.cs   |   8 +
 .../ProjectionReadModelRuntimeOptions.cs      |   2 +
 .../README.md                                 |   5 +-
 ....Projection.Providers.Elasticsearch.csproj |   1 +
 .../ServiceCollectionExtensions.cs            |   4 +-
 .../README.md                                 |   1 +
 .../ElasticsearchProjectionReadModelStore.cs  |  44 +-
 ...tar.CQRS.Projection.Providers.Neo4j.csproj |  18 +
 .../Neo4jProjectionReadModelStoreOptions.cs   |  20 +
 .../ServiceCollectionExtensions.cs            |  42 ++
 .../GlobalUsings.cs                           |   1 +
 .../README.md                                 |  22 +
 .../Stores/Neo4jProjectionReadModelStore.cs   | 293 ++++++++++++
 .../Aevatar.CQRS.Projection.Runtime.csproj    |  17 +
 .../ServiceCollectionExtensions.cs            |  18 +
 .../GlobalUsings.cs                           |   1 +
 src/Aevatar.CQRS.Projection.Runtime/README.md |  19 +
 .../ProjectionReadModelBindingResolver.cs     |  60 +++
 ...tionReadModelCapabilityValidatorService.cs |  15 +
 .../ProjectionReadModelProviderRegistry.cs    |  16 +
 .../ProjectionReadModelProviderSelector.cs    | 114 +++++
 .../ProjectionReadModelStoreFactory.cs        |  63 +++
 .../Abstractions/IStateMirrorProjection.cs    |   8 +
 ...Aevatar.CQRS.Projection.StateMirror.csproj |  16 +
 .../StateMirrorProjectionOptions.cs           |  14 +
 .../ServiceCollectionExtensions.cs            |  25 +
 .../GlobalUsings.cs                           |   1 +
 .../README.md                                 |   8 +
 .../Services/JsonStateMirrorProjection.cs     |  67 +++
 .../EventSourcing/EventSourcingBehavior.cs    | 143 +++++-
 .../EventSourcing/EventSourcingSnapshot.cs    |   6 +
 .../EventSourcing/IEventSourcingBehavior.cs   |  16 +-
 .../IEventSourcingSnapshotStore.cs            |  14 +
 .../GAgentBase.TState.cs                      |  41 +-
 .../Grains/RuntimeActorGrain.cs               |  28 +-
 .../Actor/LocalActorRuntime.cs                |  18 -
 .../Aevatar.Workflow.Infrastructure.csproj    |   1 +
 ...owCapabilityServiceCollectionExtensions.cs |  13 +
 .../Aevatar.Workflow.Projection.csproj        |   1 +
 .../WorkflowExecutionProjectionOptions.cs     |   6 +
 .../ServiceCollectionExtensions.cs            |  71 +--
 .../Aevatar.CQRS.Projection.Core.Tests.csproj |   2 +
 .../ProjectionReadModelRuntimeTests.cs        | 123 +++++
 .../StateMirrorProjectionTests.cs             |  80 ++++
 .../Bdd/AgentLifecycleBddTests.cs             | 109 +++--
 .../EventSourcingTests.cs                     | 194 ++++++--
 .../OrleansDistributedCoverageTests.cs        |   4 +-
 ...sRuntimeActorStateStoreIntegrationTests.cs |   4 +-
 ...lowExecutionProjectionRegistrationTests.cs |  54 +++
 ...WorkflowExecutionProjectionServiceTests.cs |   1 +
 tools/ci/architecture_guards.sh               |  48 ++
 62 files changed, 2008 insertions(+), 953 deletions(-)
 delete mode 100644 docs/architecture/provider-based-readmodel-full-refactor-plan.md
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelBindingResolver.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelCapabilityValidator.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderRegistry.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderSelector.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreFactory.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionProviderSelectionException.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelBindingException.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelMode.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionReadModelStoreOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/README.md
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelCapabilityValidatorService.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs
 create mode 100644 src/Aevatar.CQRS.Projection.StateMirror/Abstractions/IStateMirrorProjection.cs
 create mode 100644 src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj
 create mode 100644 src/Aevatar.CQRS.Projection.StateMirror/Configuration/StateMirrorProjectionOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.StateMirror/GlobalUsings.cs
 create mode 100644 src/Aevatar.CQRS.Projection.StateMirror/README.md
 create mode 100644 src/Aevatar.CQRS.Projection.StateMirror/Services/JsonStateMirrorProjection.cs
 create mode 100644 src/Aevatar.Foundation.Core/EventSourcing/EventSourcingSnapshot.cs
 create mode 100644 src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingSnapshotStore.cs
 create mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
 create mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/StateMirrorProjectionTests.cs

diff --git a/aevatar.slnx b/aevatar.slnx
index b384b725a..e8a10a101 100644
--- a/aevatar.slnx
+++ b/aevatar.slnx
@@ -38,8 +38,11 @@
     <Project Path="src\Aevatar.Configuration\Aevatar.Configuration.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
+    <Project Path="src\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Providers.InMemory\Aevatar.CQRS.Projection.Providers.InMemory.csproj" />
+    <Project Path="src\Aevatar.CQRS.Projection.Providers.Neo4j\Aevatar.CQRS.Projection.Providers.Neo4j.csproj" />
+    <Project Path="src\Aevatar.CQRS.Projection.StateMirror\Aevatar.CQRS.Projection.StateMirror.csproj" />
     <Project Path="src\Aevatar.Foundation.Projection\Aevatar.Foundation.Projection.csproj" />
     <Project Path="src\Aevatar.Foundation.Abstractions\Aevatar.Foundation.Abstractions.csproj" />
     <Project Path="src\Aevatar.Foundation.Core\Aevatar.Foundation.Core.csproj" />
diff --git a/docs/EVENT_SOURCING.md b/docs/EVENT_SOURCING.md
index c2514f2f3..1ed5c725e 100644
--- a/docs/EVENT_SOURCING.md
+++ b/docs/EVENT_SOURCING.md
@@ -1,167 +1,83 @@
-# Event Sourcing 使用指南
-
-本文说明如何在 Aevatar 中**开启并使用 Event Sourcing（事件溯源）**：状态不直接持久化快照，而是通过「追加状态变更事件 + 重放」来恢复与演进状态。
-
-## 何时使用
-
-- **需要完整变更历史**：可审计、可重放、可按时间点重建状态。
-- **需要乐观并发**：多实例写同一 Agent 时，通过版本号冲突检测避免覆盖。
-- **与 CQRS 配合**：写侧只追加事件，读侧通过投影或快照查询。
-
-不启用时，有状态 Agent 使用 `IStateStore<TState>` 的 Load/Save 即可，无需 Event Sourcing。
-
-## 架构要点
-
-- **ES 以 Mixin 方式提供**：不要求继承额外基类，通过 DI 注入 `IEventSourcingBehavior<TState>`，在 Agent 内显式调用。
-- **存储**：`IEventStore` 负责事件的追加与按版本查询；运行时默认提供 `InMemoryEventStore`，生产可替换为持久化实现。
-- **状态恢复**：激活时从 `IEventStore` 重放事件，通过 `TransitionState` 得到当前状态；变更时先 `RaiseEvent`，再 `ConfirmEventsAsync` 持久化。
-- **口径说明**：`InMemoryEventStore` 仅用于开发/测试，不作为生产容量治理目标；生产风险评估应基于 Redis/数据库等持久化实现。
-
-## 1. 注册服务
-
-确保运行时已注册 `IEventStore`（`AddAevatarRuntime()` 已默认注册 `InMemoryEventStore`）。若使用自定义存储，先替换为你的实现：
-
-```csharp
-// 使用默认内存事件存储（开发/测试）
-services.AddAevatarRuntime();   // 已包含 TryAddSingleton<IEventStore, InMemoryEventStore>
-
-// 或替换为持久化实现
-services.Replace(ServiceDescriptor.Singleton<IEventStore, MySqlEventStore>());
-```
-
-为**每个有状态 Agent 类型**提供 `IEventSourcingBehavior<TState>`。因构造需要 `agentId`，多 Agent 实例时需按 Agent 创建行为实例，例如通过工厂或在使用处解析：
-
-```csharp
-// 方式 A：单例（仅当该类型只有一个 Agent 实例时适用）
-services.AddSingleton<IEventSourcingBehavior<MyState>>(sp =>
-{
-    var store = sp.GetRequiredService<IEventStore>();
-    return new EventSourcingBehavior<MyState>(store, "my-agent-id");
-});
-
-// 方式 B：多实例时在创建 Agent 处按 agentId 构造（推荐）
-// 在 Actor/宿主创建 Agent 时：var behavior = new EventSourcingBehavior<MyState>(eventStore, agent.Id);
-// 再通过构造函数或属性注入到该 Agent 实例。
-```
-
-即：每个 Agent 实例对应一个 `EventSourcingBehavior<TState>` 实例（同一 `agentId`），由创建 Agent 的代码负责构造并注入。
-
-## 2. 在有状态 Agent 中使用
-
-假设你有一个 `GAgentBase<MyState>` 的 Agent，状态类型为 Protobuf 消息 `MyState`。
-
-### 2.1 注入行为
-
-在 Agent 中注入 `IEventSourcingBehavior<MyState>`（通过构造函数或可写属性，由创建 Agent 的宿主/Actor 在实例化后赋值）：
-
-```csharp
-public class MyAgent : GAgentBase<MyState>
-{
-    private readonly IEventSourcingBehavior<MyState>? _es;
-
-    public MyAgent(IEventSourcingBehavior<MyState>? es) => _es = es;
-    // 或不注入时 _es 为 null，则退化为仅用 StateStore 的普通有状态 Agent
-}
-```
-
-### 2.2 激活时从事件重放恢复状态
-
-在 `OnActivateAsync` 中，若启用了 ES，优先从事件存储重放得到初始状态；否则仍从 `StateStore` 加载（与现有逻辑兼容）：
-
-```csharp
-protected override async Task OnActivateAsync(CancellationToken ct)
-{
-    if (_es != null)
-    {
-        var replayed = await _es.ReplayAsync(Id, ct);
-        if (replayed != null)
-            State = replayed;   // 在 StateGuard 写范围内设置
-    }
-    // 若未启用 ES，基类已从 StateStore 加载，此处可做其它初始化
-}
-```
-
-注意：若使用 ES 恢复状态，通常不再依赖 `StateStore.LoadAsync` 的 snapshot；可在同一 `ActivateAsync` 作用域内只做 Replay，或配合快照策略（见后文）减少重放长度。
-
-### 2.3 在事件处理中记录并确认变更
-
-在 `[EventHandler]` 中，不直接改 `State` 后依赖 `StateStore.Save`，而是通过 ES 记录变更并确认：
+# Event Sourcing 基线文档（2026-02-23）
+
+## 1. 目标与范围
+- 目标：统一 Aevatar 有状态 Actor 的写侧事实源，强制 `Command -> Domain Event -> Apply -> State`。
+- 适用范围：`Aevatar.Foundation.Core`、`Aevatar.Foundation.Runtime`、`Aevatar.Foundation.Runtime.Implementations.Orleans`。
+- 非目标：本文件不定义 ReadModel Provider 细节；统一要求与重构计划见 `docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md`。
+
+## 2. 当前强制语义
+1. `EventStore` 是唯一业务事实源。
+2. `StateStore` 只能用于快照优化，不是业务真相。
+3. 领域事件必须由开发者显式构建并持久化，不允许在线自动反推事件。
+4. 有状态 Actor 激活必须 Replay；停用必须 flush pending events。
+5. ES 行为构造走静态泛型路径，不走 Runtime 反射注入。
+
+## 3. 当前代码事实（权威路径）
+- ES 行为契约：`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs`
+- ES 默认实现：`src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`
+- 有状态生命周期：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs`
+- Local Runtime 注入边界：`src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs`
+- Orleans Runtime 注入边界：`src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs`
+- 防回退门禁：`tools/ci/architecture_guards.sh`
+
+## 4. 生命周期语义（按当前实现）
+### 4.1 Activate
+- `GAgentBase<TState>.ActivateAsync` 先调用 `base.ActivateAsync` 恢复模块。
+- 然后调用 `EnsureEventSourcingConfigured()`：
+  - 若已设置 `EventSourcing`，直接使用。
+  - 若未设置，则通过 `Services.GetService(typeof(IEventStore))` 解析 `IEventStore`，并静态构造 `EventSourcingBehavior<TState>(eventStore, actorId)`。
+- 最后执行 `ReplayAsync(actorId)`，以 Replay 结果恢复 `State`。
+
+### 4.2 Deactivate
+- `GAgentBase<TState>.DeactivateAsync` 顺序：
+  - `OnDeactivateAsync`
+  - `ConfirmEventsAsync`
+  - `PersistSnapshotAsync`
+- 不再调用 `StateStore.SaveAsync` 写事实态。
+
+### 4.3 Fail-Fast 条件
+- 未预设 `EventSourcing` 且容器中无 `IEventStore`：激活失败（`InvalidOperationException`）。
+- 持久化 `TState` 快照事件到事件流：提交失败（禁止快照冒充领域事件）。
+
+## 5. 开发者实现规范
+1. 命令处理代码必须显式构建领域事件：`RaiseEvent(domainEvent)`。
+2. 必须调用 `ConfirmEventsAsync` 提交 pending events。
+3. 必须保证“可重放同态”：`Replay` 后状态与在线运行状态一致。
+4. 推荐通过重写 `TransitionState` 明确定义事件到状态转换。
+
+示例（简化）：
 
 ```csharp
 [EventHandler]
-public async Task HandleCountRequest(CountRequest evt, IEventHandlerContext ctx, CancellationToken ct)
+public async Task Handle(IncrementRequested evt)
 {
-    if (_es == null) { /* 回退：直接改 State + 依赖 Deactivate 时 StateStore.Save */ return; }
+    EventSourcing!.RaiseEvent(new IncrementApplied { Amount = evt.Amount });
+    await EventSourcing.ConfirmEventsAsync();
 
-    _es.RaiseEvent(new CountChanged { Delta = evt.Delta });
-    await _es.ConfirmEventsAsync(ct);
-
-    // 可选：立即反映到内存状态，便于本 Agent 后续逻辑或查询
-    var replayed = await _es.ReplayAsync(Id, ct);
+    // 当前基线下，最直接的一致性方式是回放后更新内存状态
+    var replayed = await EventSourcing.ReplayAsync(Id);
     if (replayed != null)
         State = replayed;
 }
 ```
 
-也可以在一次处理中多次 `RaiseEvent`，最后统一调用一次 `ConfirmEventsAsync`。
-
-### 2.4 实现状态转换（重放时生效）
-
-`ReplayAsync` 会按顺序将已持久化的事件应用到状态上，转换逻辑由 `TransitionState` 定义。默认的 `EventSourcingBehavior<TState>.TransitionState` 返回 `current` 不变；要真正从事件恢复状态，需要提供转换逻辑。
-
-**方式 A：派生 EventSourcingBehavior 并重写 TransitionState**
-
-```csharp
-public class MyEventSourcingBehavior : EventSourcingBehavior<MyState>
-{
-    public override MyState TransitionState(MyState current, IMessage evt)
-    {
-        switch (evt)
-        {
-            case CountChanged e:
-                return new MyState { Count = current.Count + e.Delta };
-            default:
-                return current;
-        }
-    }
-}
-```
-
-注册时使用 `MyEventSourcingBehavior` 替代 `EventSourcingBehavior<MyState>`。
-
-**方式 B：在 Agent 内使用自定义行为类型**
-
-若行为由你自定义类实现 `IEventSourcingBehavior<MyState>`，在工厂或创建处返回该实现即可，重放时即使用你实现的 `TransitionState`。
-
-事件在存储中以 `StateEvent` 形式保存，`EventData` 为 `Any`；重放时传入的是 `Any`（实现 `IMessage`），若在 `TransitionState` 中需要具体类型，可对 `evt` 做类型判断或使用 `Any.Unpack<T>()` 解出具体消息类型再处理。
-
-## 3. 停用时确认未持久化事件（可选）
-
-若希望在 Deactivate 时把尚未确认的 pending 事件写盘，可在 `OnDeactivateAsync` 中调用：
-
-```csharp
-protected override async Task OnDeactivateAsync(CancellationToken ct)
-{
-    if (_es != null)
-        await _es.ConfirmEventsAsync(ct);
-}
-```
-
-这样未在 handler 中调用 `ConfirmEventsAsync` 的变更也会在停用前被持久化。
-
-## 4. 快照策略（可选）
-
-重放大量事件可能较慢，可配合快照减少重放长度：定期将当前状态写入 `IStateStore`，重放时先加载最近快照再只重放该版本之后的事件。当前 Core 提供快照策略类型（如 `ISnapshotStrategy`、`IntervalSnapshotStrategy`），尚未在 `EventSourcingBehavior` 内自动衔接；若需，可在你的 Agent 或自定义 Behavior 中在 `ConfirmEventsAsync` 后根据策略调用 `StateStore.SaveAsync` 做快照，并在 `ReplayAsync` 中先尝试从 `StateStore` 加载再只拉取该版本之后的事件重放。
-
-## 5. 小结
-
-| 步骤 | 说明 |
-|------|------|
-| 注册 `IEventStore` | 运行时默认已注册 `InMemoryEventStore`，可按需替换。 |
-| 注册 / 创建 `IEventSourcingBehavior<TState>` | 按 Agent 类型/实例注册或通过工厂按 `agentId` 创建。 |
-| 激活时重放 | 在 `OnActivateAsync` 中调用 `_es.ReplayAsync(Id, ct)` 并赋值 `State`。 |
-| 处理中记录并确认 | 在 Handler 中 `_es.RaiseEvent(evt)`，再 `await _es.ConfirmEventsAsync(ct)`。 |
-| 实现 `TransitionState` | 在自定义 Behavior 中重写，使重放时事件能正确应用到状态。 |
-| 停用时确认（可选） | 在 `OnDeactivateAsync` 中调用 `ConfirmEventsAsync` 刷盘 pending 事件。 |
-
-不注入 `IEventSourcingBehavior<TState>` 时，Agent 行为与现有有状态 Agent 一致，仅使用 `IStateStore` 的 Load/Save，无需改动现有代码即可保持兼容。
+## 6. DI 与容器约定
+- `AddAevatarRuntime()` 默认注册 `IEventStore -> InMemoryEventStore`（开发/测试）。
+- 生产环境应替换为持久化实现（Redis/DB/日志存储等）。
+- 如需自定义 ES 行为，可直接为 Agent 预设 `EventSourcing`，但必须保持相同语义契约。
+
+## 7. 快照语义
+1. 快照仅用于减少回放开销。
+2. 快照写入失败不得影响已提交事件事实。
+3. 恢复顺序：先快照，再从快照版本之后回放事件增量。
+
+## 8. 明确禁止项
+1. 把 `TState` 本体当事件写入 `EventStore`。
+2. 在核心路径恢复 `ConfirmDerivedEventsAsync` / `IDomainEventDeriver` 旧模型。
+3. 在 `GAgentBase<TState>` 恢复 `StateStore.LoadAsync/SaveAsync` 事实通道。
+4. 在 Runtime 恢复反射注入 ES（`MakeGenericType` / `GetProperty("EventSourcing")` / `GetProperty("StateStore")`）。
+
+## 9. 验证命令
+- `dotnet test test/Aevatar.Foundation.Core.Tests/Aevatar.Foundation.Core.Tests.csproj --nologo`
+- `dotnet test test/Aevatar.Foundation.Runtime.Hosting.Tests/Aevatar.Foundation.Runtime.Hosting.Tests.csproj --nologo`
+- `bash tools/ci/architecture_guards.sh`
diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index c25664b4b..7c5648dee 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -1,312 +1,134 @@
-# Generic Event Sourcing + Provider-Based ReadModel 需求文档（基线对齐版）
-
-## 1. 文档元信息
-- 状态：In Progress（Revised）
-- 目标版本：v1（对齐当前仓库基线后可实施）
-- 适用仓库：`aevatar`
-- 首稿日期：2026-02-22
-- 本次修订：2026-02-23
-- 修订目的：将需求与当前代码/门禁/测试基线对齐，消除实现冲突
-
-## 2. 当前仓库基线（截至 2026-02-23）
-当前已具备能力：
-- Event Sourcing 抽象：`IEventStore`、`IEventSourcingBehavior<TState>`、`EventSourcingBehavior<TState>`。
-- 状态快照抽象：`IStateStore<TState>`，默认 InMemory 实现。
-- 统一 Projection Pipeline：`ProjectionLifecycleService -> ProjectionSubscriptionRegistry -> ProjectionDispatcher -> ProjectionCoordinator`。
-- 统一读模型存储契约：`IProjectionReadModelStore<TReadModel, TKey>`（`Upsert/Mutate/Get/List`）。
-- Provider 能力模型与校验：`ProjectionReadModelProviderCapabilities`、`ProjectionReadModelRequirements`、`ProjectionReadModelCapabilityValidator`。
-- Provider 选择与注册抽象：`IProjectionReadModelStoreRegistration<,>`、`ProjectionReadModelStoreSelector`。
-- 通用 Provider 项目已落地：`Aevatar.CQRS.Projection.Providers.InMemory`、`Aevatar.CQRS.Projection.Providers.Elasticsearch`。
-- Workflow 读侧完整链路：`WorkflowExecutionProjectionService` + Activation/Release/Lease/QueryReader/SinkForwarder 组件化编排。
-- Workflow 读侧已切换 Provider 选择链路；Provider 注册在 Infrastructure 完成（InMemory + Elasticsearch）。
-- CQRS 与 AGUI 共用同一输入事件流（不同 projector 分支输出）。
-- 通用命令执行壳与 Capability Host 装配机制已存在。
-- 架构门禁与稳定性门禁已生效（`architecture_guards`、`projection_route_mapping_guard`、`test_stability_guards`）。
-- 分布式 3 节点一致性集成测试与 smoke 脚本已接入 CI。
-
-当前未具备能力：
-- Graph Provider（Neo4j-like）适配器落地。
-- “State -> Default ReadModel” 的通用镜像层。
-- 自动生成 Persisted State Event 的统一框架管道（当前为显式 `RaiseEvent/ConfirmEventsAsync`）。
-- `Neo4j.Driver` 仅在集中版本文件声明，业务项目尚未引用并落地实现。
-
-### 2.1 基线证据（关键代码位置）
-| 主题 | 现状结论 | 证据 |
-|---|---|---|
-| Projection 关闭语义 | Workflow 命令入口 fail-fast，返回 `ProjectionDisabled` | `src/workflow/Aevatar.Workflow.Application/Runs/WorkflowRunContextFactory.cs`；`test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs` |
-| Query 关闭语义 | 关闭时应用层返回 `null/[]`，API 侧表现为 `404/200` | `src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs`；`src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs` |
-| ReadModel Store 契约 | 仅 `Upsert/Mutate/Get/List` 四类操作 | `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStore.cs` |
-| Provider 选择与装配 | Workflow 通过 Provider 注册 + Selector 选择 ReadModel Store | `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`；`src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs` |
-| Persisted Event 模型 | `StateEvent` 无 `metadata` 字段 | `src/Aevatar.Foundation.Abstractions/agent_messages.proto` |
-| ES 写入模式 | 仍是显式 `RaiseEvent/ConfirmEventsAsync` | `src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`；`docs/EVENT_SOURCING.md` |
-| 运行时注入 | Runtime 注入 `StateStore`，未统一注入 ES 行为 | `src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs` |
-| Capability Host | 已有 capability 注册/映射防重复机制 | `src/Aevatar.Hosting/AevatarCapabilityHostExtensions.cs` |
-| 分布式一致性基线 | 已有 3 节点集成测试 + smoke 脚本 | `test/Aevatar.Foundation.Runtime.Hosting.Tests/DistributedClusterConsistencyIntegrationTests.cs`；`tools/ci/distributed_3node_smoke.sh` |
-| 架构约束自动化 | 路由精确匹配、禁止中间层 ID 映射事实态、lease/session 约束 | `tools/ci/architecture_guards.sh`；`tools/ci/projection_route_mapping_guard.sh` |
-
-## 3. 问题定义
-在当前基线上，仍有以下缺口：
-- Provider 能力模型与选择链路已落地，但跨业务域统一治理（Registry/策略化选择/观测）仍不完整。
-- Document Provider 已可用，但生产级增强（异常分级、索引策略细化、观测字段收口）仍需补齐。
-- EventEnvelope 与 Persisted State Event 的边界在文档层仍需统一口径，避免误用。
-- 目标中包含的 `StateOnly`、Graph Index、自动 Persisted Event 与当前运行语义存在冲突，需要分期。
-
-## 4. 目标与分期
-
-### 4.1 总体目标
-1. 保持单一主链路：`Command -> Event -> Projection -> ReadModel`。
-2. 在不破坏现有 Workflow 语义的前提下，引入 Provider 能力抽象与启动期校验。
-3. v1 先交付 Document Index Provider（Elasticsearch-like）落地能力。
-4. Graph Index（Neo4j-like）进入 vNext，先沉淀抽象，不在 v1 强制交付完整能力。
-5. Event Sourcing 继续保持兼容，自动化增强采用显式分期与开关。
-
-### 4.2 分期策略
-- P0（当前文档阶段）：基线对齐、冲突消解、DoD 可执行化。
-- P1（v1）：Provider 能力模型 + 启动期校验 + Document Index Provider 适配。
-- P2（vNext）：Graph Index Provider 与通用 StateMirror/StateOnly 能力扩展。
-
-### 4.3 v1 落地边界（结合现有代码）
-- v1 以 Workflow 读侧为唯一落地点：`WorkflowExecutionReport` 先完成 Provider 化。
-- 不在 v1 引入新的“全局第二投影框架”，而是复用现有 `AddWorkflowExecutionProjectionCQRS` 与 Provider 注册/选择链路。
-- v1 不改写命令执行主链路，不变更 `WorkflowRunContextFactory` 的 Projection fail-fast 语义。
-- v1 不改 Query API 合同，只保证替换存储后语义一致。
-
-## 5. 非目标（v1）
-- 不引入第二套 CQRS/Projection 主链路。
-- 不破坏现有 Workflow 命令入口“投影关闭即 fail-fast”行为。
-- 不在 v1 完成 Graph 查询 DSL、路径优化执行器。
-- 不在 v1 引入跨存储分布式事务。
-- 不在 v1 改造所有 Event Sourcing 调用为全自动模式。
-
-## 6. 架构与治理约束（强制）
-- 严格分层：`Domain / Application / Infrastructure / Host`。
-- Host 仅做协议适配与能力装配，不承载业务编排。
-- CQRS 与 AGUI 必须共用统一 Projection Pipeline，禁止双轨。
-- 中间层禁止进程内 actor/run/session 事实态映射。
-- 投影生命周期必须基于 lease/session 显式句柄，不允许 `actorId -> context` 反查。
-- Event type 路由必须基于 `TypeUrl` 派生 + 精确键匹配（`TryGetValue`），禁止字符串模糊匹配。
-- 能力不匹配在启动期 fail-fast（默认策略），不得运行期隐式降级。
-- 所有变更必须通过既有门禁与测试。
-
-## 7. 关键决策（本版定稿）
-
-### D1 `StateOnly` 语义（Workflow 现状）
-- 在当前 Workflow 能力中，`ProjectionDisabled` 会阻断命令执行（现有行为保持）。
-- 因此 v1 不将 Workflow 场景纳入 `StateOnly` 支持范围；`StateOnly` 进入通用内核 vNext 议题。
-
-### D2 Query API 合同兼容
-- v1 不改现有查询端点对外合同（现有 `null/[]/404/200` 语义维持）。
-- 若后续引入统一“能力不可用”错误模型，需单独版本化并提供迁移说明。
-
-### D3 Event Sourcing 保持兼容
-- v1 继续支持显式 `RaiseEvent/ConfirmEventsAsync` 路径。
-- 自动 Persisted Event 仅作为扩展能力进入 P2，不作为 v1 合并前置条件。
-
-### D4 Persisted Event 权威模型
-- `EventEnvelope` 仅用于运行时传播/投影输入。
-- EventStore 权威回放源是 `StateEvent`（Persisted State Event）。
-
-### D5 Graph 能力分期
-- v1：仅保留 Graph 抽象扩展位，不要求完整 Neo4j 读写/查询能力。
-- vNext：Graph Provider 以单独 RFC + 里程碑方式落地。
-
-### D6 v1 实施落点
-- v1 的 Provider 化仅要求在 Workflow Projection 模块闭环，不强制外溢到所有业务域。
-- 先确保“现有测试与门禁全绿 + 行为不回归”，再考虑通用化抽象下沉。
-
-## 8. 范围（Scope）
-
-### 8.1 In Scope（v1）
-- 定义 ReadModel Provider 能力模型与协商机制。
-- 启动期执行 “ReadModel 要求 vs Provider 能力” 校验。
-- 保持 `IProjectionReadModelStore<TReadModel, TKey>` 兼容，不破坏现有 Workflow 读侧。
-- 提供 Document Index Provider（Elasticsearch-like）适配器。
-- Workflow `WorkflowExecutionReport` 可切换到 Document Provider 承接。
-- 通过 `IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>` 注册 Provider，不新增平行投影链路。
-- 配置模型与 DI 扩展补齐（保留与现有 `WorkflowExecutionProjection:*` 兼容）。
-- 补齐单元/集成/门禁验证。
-
-### 8.2 Out of Scope（v1）
-- Graph Provider 的完整查询与关系建模能力。
-- 通用 `StateMirrorProjection` 自动覆盖所有 `GAgentBase<TState>` 类型。
-- 全量业务模块一次性迁移到新 Provider。
-- 生产 ILM/冷热分层自动化。
-- 新建独立“全局 ReadModel Infrastructure 大一统项目”并强制迁移全仓库。
-
-## 9. 功能需求（FR）
-
-### FR-1 Event Sourcing 抽象保持兼容
-- 保持 `IEventStore` 追加、版本并发校验、按版本回放语义。
-- 保持 `IStateStore<TState>` 快照通道语义不变。
-
-### FR-2 Persisted State Event 与 Envelope 边界
-- Persisted 回放源仅为 `StateEvent`。
-- `EventEnvelope` 中运行时路由/传播字段不得进入回放权威语义。
-
-### FR-3 StateEvent 结构约束（v1）
-- v1 继续使用现有 `StateEvent` 字段模型：
-  `event_id/timestamp/version/event_type/event_data/agent_id`。
-- 若需 `metadata` 字段，作为 vNext 的 proto 升级任务，不阻塞 v1。
-
-### FR-4 ReadModel Store 兼容约束
-- `IProjectionReadModelStore<TReadModel, TKey>` 契约保持兼容：
-  - `UpsertAsync`
-  - `MutateAsync`
-  - `GetAsync`
-  - `ListAsync`
-- 既有 Workflow 读侧代码无需修改业务语义即可接入新 Provider。
-- v1 不在该接口上新增 Graph 专有方法，避免破坏现有实现与测试基线。
-
-### FR-5 Provider 能力声明模型
-- 新增能力抽象（至少包含）：
-  - `SupportsIndexing`
-  - `IndexKinds`（支持集合，至少可表达 `Document`）
-  - `SupportsAliases`
-  - `SupportsSchemaValidation`
-- 能力模型可由 Store 实现直接声明，或由独立能力描述器声明。
-- 无论采用哪种声明方式，都不得破坏现有 Store 接口二进制兼容性。
-
-### FR-6 启动期能力校验
-- ReadModel 注册/装配阶段执行能力匹配。
-- 默认策略：不匹配 fail-fast。
-- 必须输出结构化错误，包含 readModel/provider/requiredCapabilities。
-- 能力校验应接入现有 Workflow Projection DI 装配流程，而不是额外旁路启动器。
-
-### FR-7 Workflow Provider 可替换承接
-- `WorkflowExecutionReport` 的存储后端支持通过 Provider 注册在 DI 中替换。
-- 切换 Provider 后，Query 结果语义与字段口径保持一致。
-
-### FR-8 Document Index Provider（v1 必做）
-- 实现 Elasticsearch-like Provider：
-  - 支持 `Upsert/Mutate/Get/List` 等价语义。
-  - 支持索引命名环境隔离（如 prefix）。
-  - 支持可配置索引初始化策略（create if missing）。
-
-### FR-9 `StateOnly` 约束说明（v1）
-- Workflow 能力 v1 保持现有行为：Projection 关闭时返回 `ProjectionDisabled`。
-- `StateOnly/DefaultReadModel/CustomReadModel` 通用模式进入 vNext RFC，不在 v1 作为可验收项。
-
-### FR-10 Event Sourcing 自动化分期
-- v1 不强制实现“统一管道自动生成 Persisted Event”。
-- 如实现实验能力，必须开关控制且默认关闭，不改变现有显式路径行为。
-
-### FR-11 可观测性
-- Provider 写入路径至少记录：
-  `provider/readModelType/key(state id)/elapsedMs/result/errorType`。
-- 启动期能力校验失败日志必须可定位到具体 ReadModel 与缺失能力。
-
-### FR-12 分布式一致化验证
-- 保持并复用现有 3 节点一致性验证链路与脚本接入。
-- 新增 Provider 后，不得破坏现有 distributed smoke 稳定性。
-
-### FR-13 复用现有通用壳能力
-- Command 侧复用现有 `ICommandExecutionService<...>` 抽象，不新增平行命令执行框架。
-- Host 侧复用既有 capability 注册机制，不新增第二套 capability 映射容器。
-
-## 10. 非功能需求（NFR）
-
-### NFR-1 一致性
-- EventStore 单流版本必须单调递增。
-- ReadModel 允许最终一致，但需在测试中可稳定判定收敛/失败。
-
-### NFR-2 性能
-- `ListAsync` 必须强制硬上限（Provider 侧可配置上限）。
-- Provider 写入路径延迟应可观测（至少日志维度可统计）。
-
-### NFR-3 可运维性
-- Provider 配置支持 `appsettings` + 环境变量覆盖。
-- 能力不匹配在启动期直接失败，不允许运行中静默降级。
-
-### NFR-4 安全
-- 日志不得输出明文凭据。
-- 凭据通过配置系统注入，支持环境变量替换。
-
-### NFR-5 门禁兼容性
-- 新增实现不得触发现有 `architecture_guards`、`projection_route_mapping_guard`、`test_stability_guards` 违规。
-- 新增测试不得引入未授权轮询等待；必要例外必须进入 allowlist 并给出理由。
-
-## 11. 配置需求
-
-### 11.1 当前有效配置（已存在）
-- `ActorRuntime:Provider`（`InMemory/MassTransit/Orleans`）
-- `WorkflowExecutionProjection:Enabled`
-- `WorkflowExecutionProjection:EnableActorQueryEndpoints`
-- `WorkflowExecutionProjection:EnableRunReportArtifacts`
-- `WorkflowExecutionProjection:RunProjectionCompletionWaitTimeoutMs`
-- `WorkflowExecutionProjection:RunProjectionFinalizeGraceTimeoutMs`
-
-### 11.2 v1 新增配置（建议）
-- `Projection:ReadModel:Provider`（`InMemory/Elasticsearch`）
-- `Projection:ReadModel:FailOnUnsupportedCapabilities`（默认 `true`）
-- `Projection:ReadModel:Bindings:*`（可选，ReadModel -> Provider 显式绑定）
-- `WorkflowExecutionProjection:ReadModelProvider` / `FailOnUnsupportedCapabilities` / `ReadModelBindings` 保留为模块内覆盖位（可选）
-
-### 11.3 Document Provider 示例配置
-- `Projection:ReadModel:Providers:Elasticsearch:Endpoints`
-- `Projection:ReadModel:Providers:Elasticsearch:IndexPrefix`
-- `Projection:ReadModel:Providers:Elasticsearch:RequestTimeoutMs`
-- `Projection:ReadModel:Providers:Elasticsearch:ListTakeMax`
-- `Projection:ReadModel:Providers:Elasticsearch:AutoCreateIndex`
-- `Projection:ReadModel:Providers:Elasticsearch:Username`
-- `Projection:ReadModel:Providers:Elasticsearch:Password`
-
-### 11.4 预留（vNext）
-- `Projection:ReadModel:Providers:Neo4j:*`
-- `Projection:ReadModel:Mode`（`StateOnly/DefaultReadModel/CustomReadModel`）
-
-## 12. 验收标准（DoD）
-
-### 12.1 单元测试
-- Provider 能力声明与匹配（成功/失败/冲突路径）。
-- 启动期 fail-fast 错误语义。
-- Document Provider 的 `Upsert/Mutate/Get/List` 契约一致性。
-- Workflow 切换 Provider 后 Query 结果语义保持一致。
-- `ProjectionDisabled` 行为保持兼容（Workflow v1）。
-- 覆盖 Provider 注册与选择链路：`IProjectionReadModelStoreRegistration<,>` + `ProjectionReadModelStoreSelector`。
-
-### 12.2 集成测试
-- Docker Elasticsearch 下验证 Workflow ReadModel 端到端写读。
-- Provider 切换前后，关键 Query API 返回语义一致。
-
-### 12.3 分布式一致化测试
-- 保持并通过现有 3 节点一致性脚本链路。
-- 测试稳定性门禁通过，不新增未授权轮询等待。
-
-### 12.4 合规门槛（必须全绿）
-- `dotnet build aevatar.slnx --nologo`
-- `dotnet test aevatar.slnx --nologo`
+# Generic Event Sourcing + Provider ReadModel 需求与重构计划（必要文档）
+
+## 1. 文档定位
+- 状态：Active
+- 日期：2026-02-23
+- 目的：作为 Event Sourcing 与 Provider-Based ReadModel 的唯一执行文档（需求 + 计划一体化）。
+- 范围：Foundation（ES）+ CQRS Projection（Provider Runtime）+ Workflow（接入层）。
+- 兼容策略：以清晰正确为第一目标，不保留历史兼容壳。
+
+## 2. 架构硬约束
+1. 有状态 Actor 必须 Event Sourcing，`EventStore` 是事实源。
+2. `Command -> Domain Event -> Apply -> State`，开发者显式构建 event。
+3. ReadModel Provider 必须通用化，不绑定 Workflow 业务域。
+4. CQRS 与 AGUI 必须共用同一 Projection Pipeline，不得双轨。
+5. 中间层不得维护 `actor/run/session` 事实态进程内映射。
+6. Runtime 不得通过反射注入 ES（`MakeGenericType` / `GetProperty().SetValue`）。
+
+## 3. 当前代码基线（已验证）
+### 3.1 Event Sourcing
+- 契约：`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs`
+- 实现：`src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`
+- 生命周期：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs`
+- 运行时注入边界：
+  - `src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs`
+  - `src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs`
+
+当前语义：
+1. `ActivateAsync` 强制 Replay 恢复状态。
+2. `DeactivateAsync` 强制 `ConfirmEventsAsync + PersistSnapshotAsync`。
+3. 未设置 `EventSourcing` 时，`GAgentBase<TState>` 在泛型上下文内用 `IEventStore` 静态构造 `EventSourcingBehavior<TState>`。
+4. 缺失 `IEventStore` 时 fail-fast。
+5. `ConfirmDerivedEventsAsync` / `IDomainEventDeriver` / `EventSourcingAutoPersistenceOptions` 已从主链路移除。
+
+### 3.2 Provider Runtime
+- 抽象：`src/Aevatar.CQRS.Projection.Abstractions`
+- 运行时：`src/Aevatar.CQRS.Projection.Runtime`
+- Provider：
+  - InMemory：`src/Aevatar.CQRS.Projection.Providers.InMemory`
+  - Elasticsearch：`src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
+  - Neo4j：`src/Aevatar.CQRS.Projection.Providers.Neo4j`
+- StateMirror：`src/Aevatar.CQRS.Projection.StateMirror`
+
+当前语义：
+1. Provider 通过 `IProjectionReadModelStoreRegistration<TReadModel, TKey>` 注册。
+2. Store 由 `ProviderRegistry + ProviderSelector + BindingResolver + StoreFactory` 统一创建。
+3. 多 Provider 并存时必须显式指定 provider；否则选择失败。
+4. 能力不匹配默认 fail-fast（`FailOnUnsupportedCapabilities=true`）。
+
+### 3.3 Workflow 接入
+- 组合入口：`src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`
+- 投影 DI：`src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`
+
+当前语义：
+1. Workflow 已接入 InMemory + Elasticsearch + Neo4j 三类 Provider 注册。
+2. `Projection:ReadModel:*` 全局选项会映射到 Workflow 投影选项。
+3. `ReadModelMode=StateOnly` 在 Workflow 组合阶段被拒绝（明确 fail-fast）。
+
+## 4. 需求清单（必须满足）
+
+### R-ES-01 强制事件优先
+- 所有 `GAgentBase<TState>` 子类必须基于领域事件恢复状态，不得以快照替代事实。
+
+### R-ES-02 显式事件构建
+- 命令处理逻辑必须显式 `RaiseEvent`，不得依赖自动事件推导。
+
+### R-ES-03 可重放同态
+- 在线状态变更必须可通过 Replay 重建到同一结果。
+
+### R-ES-04 静态泛型装配
+- ES 行为构造必须在泛型上下文完成，不得回退到 Runtime 反射注入。
+
+### R-RM-01 Provider 解耦业务
+- Provider 项目不得引用 Workflow/AI 业务读模型类型。
+
+### R-RM-02 能力协商
+- Provider 必须声明能力（索引类型、alias、schema 校验），ReadModel 需求必须在启动期校验。
+
+### R-RM-03 路由确定性
+- 多 Provider 并存时必须可预测选择，不允许隐式随机或“最后注册覆盖”语义。
+
+### R-RM-04 统一观测
+- Provider 写路径必须记录结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
+
+### R-WF-01 Workflow 仅消费抽象
+- Workflow 层只依赖 Provider Runtime 抽象，不实现后端存储细节。
+
+### R-WF-02 单链路投影
+- Workflow CQRS 与 AGUI 必须从同一订阅与分发链路进入，不得维护平行投影系统。
+
+### R-GOV-01 门禁强制
+- 必须通过：
+  - `bash tools/ci/architecture_guards.sh`
+  - `bash tools/ci/projection_route_mapping_guard.sh`
+  - `bash tools/ci/test_stability_guards.sh`
+
+## 5. 重构计划（按优先级）
+
+### P1（已完成）ES 强制化主链路
+1. 移除自动反推事件接口与实现。
+2. `GAgentBase<TState>` 生命周期切换到 Replay + Confirm。
+3. Runtime 去除 ES 反射注入路径。
+
+### P2（已完成）Provider Runtime 主干
+1. 建立 Provider 注册/选择/校验/创建主链路。
+2. 落地 InMemory/Elasticsearch/Neo4j 三类 Provider。
+3. Workflow 接入统一 Provider 选择逻辑。
+
+### P3（进行中）一致性与可维护性收口
+1. 清理文档与代码中的历史双轨口径。
+2. 补齐跨模块契约测试：`Command -> Events -> Replay -> State`。
+3. 统一配置示例与错误合同说明（启动失败与能力不匹配）。
+
+### P4（待执行）性能与生产化增强
+1. 为持久化 `IEventStore` 提供生产落地方案与压测基线。
+2. 补齐 Elasticsearch/Neo4j 端到端集成脚本与回归套件。
+3. 细化快照策略与回放窗口控制。
+
+## 6. 验收标准（DoD）
+1. 有状态 Actor 恢复路径全部来自 Replay，不存在 `StateStore.Load/Save` 事实回路。
+2. Runtime/Core 不存在 ES 反射注入路径。
+3. Provider 由统一 Runtime 选择并可校验能力。
+4. Workflow 仅作为 Provider Runtime 消费方，不绑定 ES/Neo4j 实现细节。
+5. 架构门禁、核心测试全绿。
+
+## 7. 验证命令
+- `dotnet test test/Aevatar.Foundation.Core.Tests/Aevatar.Foundation.Core.Tests.csproj --nologo`
+- `dotnet test test/Aevatar.Foundation.Runtime.Hosting.Tests/Aevatar.Foundation.Runtime.Hosting.Tests.csproj --nologo`
+- `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
 - `bash tools/ci/architecture_guards.sh`
-- `bash tools/ci/projection_route_mapping_guard.sh`
-- `bash tools/ci/test_stability_guards.sh`
-- `bash tools/ci/solution_split_test_guards.sh`
-
-## 13. 与原稿差异（本次修订）
-| 维度 | 原稿 | 本版 |
-|---|---|---|
-| `StateOnly` | v1 必做 | 与当前 Workflow 冲突，改为 vNext |
-| Graph Provider | v1 必做 | 改为 vNext（v1 仅保留扩展位） |
-| Persisted Event 自动化 | v1 强要求 | 改为分期，v1 保持兼容 |
-| 配置模型 | 以 `Projection:ReadModel:*` 为主 | 先兼容现有 `WorkflowExecutionProjection:*`，渐进演进 |
-| DoD | 泛化描述 | 对齐现有 CI 门禁与可执行命令 |
-
-## 14. 风险与缓解
-- 风险：Provider 能力模型设计不当导致后续扩展困难。  
-  缓解：v1 先覆盖 Document 必需能力，Graph 通过独立 RFC 引入。
-- 风险：切换后端导致 Query 语义漂移。  
-  缓解：契约测试 + 端到端对照测试。
-- 风险：过早推进自动 Persisted Event 改动写侧行为。  
-  缓解：v1 保持显式路径，自动化能力仅实验开关。
-
-## 15. 待确认项（Open Questions）
-- `ReadModelBindings` 的优先级规则（显式绑定 vs 默认路由）最终口径。
-- Graph RFC 的启动条件（抽象稳定性、测试基线、运维要求）。
-- 多业务域接入时，Provider 默认路由策略是否需要支持“按 ReadModel 类型自动选择”。
 
-## 16. 需求-实现映射（v1）
-| 需求主题 | 优先改动位置 | 复用现有扩展点 | 说明 |
-|---|---|---|---|
-| Provider 能力声明与校验 | `src/Aevatar.CQRS.Projection.Abstractions/Abstractions` + `src/workflow/Aevatar.Workflow.Projection/DependencyInjection` | `AddWorkflowExecutionProjectionCQRS` | 通过 Selector + CapabilityValidator 在装配期做匹配与 fail-fast |
-| Document Provider Store | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch` | `IProjectionReadModelStoreRegistration<,>` | 通用 ES Provider，不绑定 Workflow 业务域 |
-| Query 语义回归保障 | `src/workflow/Aevatar.Workflow.Projection/Orchestration` | `IWorkflowExecutionProjectionPort` | 不改 `null/[]/404/200` 现有合同 |
-| 配置绑定扩展 | `src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection` | `WorkflowExecutionProjection` + `Projection:ReadModel` 配置节 | 新增统一 Provider 配置并保持模块级覆盖位 |
-| 测试与门禁收口 | `test/Aevatar.Workflow.Host.Api.Tests`、`test/Aevatar.Workflow.Application.Tests`、`tools/ci` | 现有 CI 脚本链路 | 先增量覆盖，再跑全量门禁 |
+## 8. 变更原则
+1. 删除优先于兼容。
+2. 文档必须与当前代码语义一致，不保留“未来可能”但无代码支撑的条目。
+3. 任何新扩展（Provider/ES）都必须接入现有主链路，不得开第二系统。
diff --git a/docs/architecture/provider-based-readmodel-full-refactor-plan.md b/docs/architecture/provider-based-readmodel-full-refactor-plan.md
deleted file mode 100644
index 347b42ce2..000000000
--- a/docs/architecture/provider-based-readmodel-full-refactor-plan.md
+++ /dev/null
@@ -1,267 +0,0 @@
-# Provider-Based ReadModel 全量重构计划（彻底版）
-
-## 1. 文档元信息
-- 状态：In Progress
-- 目标：覆盖 `docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md` 的全部要求（含 v1 + vNext）
-- 适用仓库：`aevatar`
-- 编写日期：2026-02-23
-- 最近更新：2026-02-23
-- 备注：本计划按“可破坏式重构”制定，不以兼容历史实现为约束
-
-## 1.1 当前进展快照（2026-02-23）
-- 已完成：W0（Provider 纠偏清理，Workflow 不再持有 Provider Store 实现）。
-- 部分完成：W1（能力模型/选择器/校验器已落地，统一 Registry 与结构化观测仍待补齐）。
-- 部分完成：W2（通用 Elasticsearch Provider 项目与 DI 注册已落地，异常分级与 schema/mapping 策略仍待增强）。
-- 部分完成：W6（Workflow 已接入通用 Provider 注册与选择链路，其它业务域未迁移）。
-- 未开始：W3/W4/W5。
-
-## 2. 执行原则（硬约束）
-- 严格分层：`Domain / Application / Infrastructure / Host`。
-- Provider 必须在通用 CQRS 基建层，不得绑定具体业务域（例如 Workflow）。
-- CQRS 与 AGUI 继续走单一 Projection Pipeline，禁止平行链路。
-- 中间层禁止进程内 ID->事实态映射（遵守现有 guard）。
-- 能力不匹配默认启动期 fail-fast。
-- 变更必须满足现有 CI 门禁与新增测试门槛。
-
-## 3. 当前关键问题（必须先修）
-1. `Elasticsearch` 适配器被放在 `Aevatar.Workflow.Projection`，违反“通用能力下沉”原则。（已修复）
-2. Provider 能力模型虽已引入，但尚未形成“跨业务域可复用”的统一 Registry/路由/校验治理框架。（进行中）
-3. Graph Provider 尚未落地，StateMirror/StateOnly 通用能力未完成。
-4. Event Sourcing 自动 Persisted Event 仍未进入统一管道。
-
-## 4. 目标架构（完成态）
-
-### 4.1 项目结构（目标）
-- `src/Aevatar.CQRS.Projection.Abstractions`
-  - 保留并扩展通用契约：`IProjectionReadModelStore<,>`、Provider 能力模型、ReadModel 需求模型。
-- `src/Aevatar.CQRS.Projection.Providers`
-  - 新建通用 Provider 运行时：注册、选择、能力校验、错误模型、可观测性。
-- `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
-  - Document Index Provider，通用实现，不含 Workflow 业务对象。
-- `src/Aevatar.CQRS.Projection.Providers.Neo4j`
-  - Graph Index Provider，通用实现，不含 Workflow 业务对象。
-- `src/Aevatar.CQRS.Projection.StateMirror`
-  - 通用 `State -> DefaultReadModel` 镜像能力（可选启用）。
-- `src/workflow/Aevatar.Workflow.Projection`
-  - 仅保留 Workflow 读模型、reducer/projector、port，不含后端 SDK/Provider 实现。
-
-### 4.2 运行路径（目标）
-1. 业务模块声明 ReadModel 与需求（IndexKind/Schema/Alias）。
-2. Host 装配通用 Provider Runtime。
-3. Provider Runtime 在启动期执行：
-   - ReadModel 绑定解析
-   - Provider 选择
-   - 能力校验
-   - 失败即 fail-fast（默认）
-4. Projection 写入通过统一 Store 契约执行，业务层无后端耦合。
-
-## 5. 全量重构范围（对应需求文档）
-
-### 5.1 v1 范围（必须完成）
-- Provider 能力模型、启动期校验、Document Provider 落地。
-- Workflow 切换 Provider 且 Query 语义不变。
-- 可观测性字段落地（provider/readModelType/key/elapsedMs/result/errorType）。
-- 配置模型落地与环境变量覆盖。
-
-### 5.2 vNext 范围（本轮也纳入计划并执行）
-- Graph Provider（Neo4j-like）完整落地。
-- 通用 `StateOnly / DefaultReadModel / CustomReadModel` 模式。
-- 通用 StateMirror 能力。
-- Event Sourcing 自动 Persisted Event 管道（开关化 + 默认策略定义）。
-
-## 6. 详细实施计划（Workstreams）
-
-### W0 纠偏清理（先决）
-目标：消除“Provider 绑定业务域”问题。
-状态：Completed（2026-02-23）
-
-任务：
-1. 从 `Aevatar.Workflow.Projection` 移除 `Elasticsearch` 实现与配置细节。
-2. 在 Workflow 层保留 `IProjectionReadModelStore<WorkflowExecutionReport, string>` 注入点，不感知具体后端。
-3. 删除/迁移 Workflow 内 Provider 专属类到通用 Provider 项目。
-
-交付：
-- Workflow 项目不再引用 Elasticsearch 相关 SDK/实现。
-- 相关 Workflow 测试已切换为通用 Provider Store 类型；Provider 专项测试集待补齐。
-
-### W1 通用 Provider Runtime 基建
-目标：建立跨业务可复用的 Provider 选择与能力校验内核。
-状态：In Progress
-
-任务：
-1. 设计并实现：
-   - `IProjectionReadModelProviderRegistry`
-   - `IProjectionReadModelProviderSelector`
-   - `IProjectionReadModelCapabilityValidator`（现有静态工具升级为可注入策略）
-   - `ProjectionReadModelBindingResolver`
-2. 引入标准错误模型：
-   - `readModel`
-   - `provider`
-   - `requiredCapabilities`
-   - `actualCapabilities`
-   - `violations`
-3. 统一日志接口与事件 ID，支持结构化查询。
-
-交付：
-- 任意业务模块可通过统一 API 注册 ReadModel 需求并由运行时自动选 Provider。
-
-### W2 Document Provider（Elasticsearch）
-目标：通用 Document Index Provider 完成生产可用版本。
-状态：In Progress
-
-任务：
-1. 新建 `Aevatar.CQRS.Projection.Providers.Elasticsearch`。
-2. 提供通用 Store 适配机制：
-   - 支持 `Upsert/Mutate/Get/List`
-   - `ListAsync` 强上限
-   - 索引前缀隔离
-   - 自动建索引策略
-3. 引入 mapping/settings/alias 处理策略（与能力模型一致）。
-4. 完善异常分类（连接失败、索引不存在、版本冲突、认证失败）。
-
-交付：
-- 不依赖 Workflow 类型的通用 ES Provider。
-
-### W3 Graph Provider（Neo4j）
-目标：完成 Graph Index Provider 能力闭环。
-状态：Not Started
-
-任务：
-1. 新建 `Aevatar.CQRS.Projection.Providers.Neo4j`。
-2. 支持节点/关系写入与基础查询。
-3. 支持唯一约束与索引初始化策略。
-4. 将 Graph 能力纳入同一 Provider runtime 校验。
-
-交付：
-- `IndexKind.Graph` 可被真实 Provider 承接。
-
-### W4 StateMirror / ReadModel 可选模式
-目标：完成 `StateOnly / DefaultReadModel / CustomReadModel` 三模式。
-状态：Not Started
-
-任务：
-1. 新建 `Aevatar.CQRS.Projection.StateMirror`：
-   - 默认字段映射
-   - 可配置忽略/重命名
-   - 可插拔 projector 覆盖
-2. `StateOnly` 模式定义：
-   - 不创建 ReadModel
-   - 查询端点返回统一能力不可用错误模型
-3. `CustomReadModel` 与默认镜像并存规则、优先级规则落地。
-
-交付：
-- 框架层提供无业务耦合的默认读模型能力。
-
-### W5 Event Sourcing 自动 Persisted Event 管道
-目标：把“手动 Raise/Confirm”为主的模式升级为可配置自动化。
-状态：Not Started
-
-任务：
-1. 设计统一写侧提交管道：
-   - 变更检测
-   - 事件生成（Snapshot/Delta）
-   - 版本推进与幂等控制
-2. 提供开关：
-   - 全局开关
-   - 模块级覆盖
-3. 默认策略：
-   - 默认保持兼容行为或由本次重构统一切换（按最终决策）
-
-交付：
-- 业务方无需手动拼装 persisted event 基础流程。
-
-### W6 Workflow 与其他模块接入
-目标：业务域从“自带 Provider”转为“消费通用 Provider Runtime”。
-状态：In Progress
-
-任务：
-1. Workflow 完整迁移到通用 runtime。
-2. 逐步接入 AI/Foundation/其他读侧模块（如存在）。
-3. 清理重复抽象、空转发层、历史兼容分支。
-
-交付：
-- 业务域仅保留领域语义与投影逻辑，不含后端实现细节。
-
-## 7. 配置模型重构计划
-
-### 7.1 目标配置（通用）
-- `Projection:ReadModel:Provider`
-- `Projection:ReadModel:FailOnUnsupportedCapabilities`
-- `Projection:ReadModel:Bindings`
-- `Projection:ReadModel:Providers:Elasticsearch:*`
-- `Projection:ReadModel:Providers:Neo4j:*`
-- `Projection:ReadModel:Mode`（`StateOnly/DefaultReadModel/CustomReadModel`）
-
-### 7.2 迁移策略（本次不保兼容）
-- 删除业务域私有 Provider 配置键（如 `WorkflowExecutionProjection:Providers:*`）。
-- 全量切换到统一 `Projection:ReadModel:*`。
-
-## 8. 测试与门禁计划
-
-### 8.1 单元测试
-- Provider 能力匹配：成功/失败/冲突/歧义。
-- Provider 选择器：单候选自动路由、多候选强制显式绑定。
-- ReadModel 三模式行为测试。
-- 自动 Persisted Event 管道（变更检测、版本、幂等）。
-
-### 8.2 集成测试
-- Elasticsearch 端到端写读（Docker）。
-- Neo4j 端到端写读（Docker）。
-- Workflow Provider 切换后 Query 合同一致性。
-
-### 8.3 分布式测试
-- 保留并扩展 3 节点一致性链路。
-- 新增 Provider 后验证跨节点一致收敛。
-
-### 8.4 强制门禁
-- `dotnet build aevatar.slnx --nologo`
-- `dotnet test aevatar.slnx --nologo`
-- `bash tools/ci/architecture_guards.sh`
-- `bash tools/ci/projection_route_mapping_guard.sh`
-- `bash tools/ci/test_stability_guards.sh`
-- `bash tools/ci/solution_split_test_guards.sh`
-
-## 9. 里程碑与交付
-
-### M1（纠偏 + 基建）
-- 完成 W0 + W1。
-- 验收：Workflow 不再持有任何 Provider 实现。
-- 当前状态：W0 完成；W1 部分完成。
-
-### M2（Document Provider）
-- 完成 W2。
-- 验收：ES Provider 在通用层可被 Workflow/其他模块消费。
-- 当前状态：已可被 Workflow 消费，增强项进行中。
-
-### M3（Graph Provider）
-- 完成 W3。
-- 验收：Graph ReadModel 可真实写读，能力校验全链路可用。
-- 当前状态：未开始。
-
-### M4（StateMirror + 模式化 + ES 自动化）
-- 完成 W4 + W5。
-- 验收：ReadModel 三模式与自动 Persisted Event 能力全量可测。
-- 当前状态：未开始。
-
-### M5（全域收口）
-- 完成 W6 + 全量文档/测试/门禁收口。
-- 验收：需求文档条目全部闭环，无历史空壳实现。
-- 当前状态：Workflow 已接入，其它域待迁移。
-
-## 10. 风险与应对
-- 风险：Provider Runtime 泛化过度导致复杂度爆炸。  
-  应对：先冻结最小能力集合，按里程碑增量扩展。
-- 风险：Graph 与 Document 语义差异大，统一抽象失真。  
-  应对：抽象仅覆盖公共最小集，复杂能力走 provider-specific extension。
-- 风险：重构期间回归面大。  
-  应对：分阶段门禁 + 契约测试 + 分片测试强制执行。
-- 风险：自动 Persisted Event 改写写侧行为。  
-  应对：先实验开关，明确默认策略后再全量切换。
-
-## 11. 完成定义（Final DoD）
-- 需求文档中 FR/NFR 全量有代码落地。
-- Provider 不再出现在业务域实现层。
-- Document + Graph Provider 均可被统一 runtime 装配并通过能力校验。
-- StateOnly/Default/Custom 三模式完整可用。
-- 自动 Persisted Event 管道可用并有完整测试。
-- 全量 CI 门禁通过，文档同步完成。
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelBindingResolver.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelBindingResolver.cs
new file mode 100644
index 000000000..61630e519
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelBindingResolver.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionReadModelBindingResolver
+{
+    ProjectionReadModelRequirements Resolve(
+        IReadOnlyDictionary<string, string> readModelBindings,
+        Type readModelType);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelCapabilityValidator.cs
new file mode 100644
index 000000000..c18b16f62
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelCapabilityValidator.cs
@@ -0,0 +1,13 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionReadModelCapabilityValidator
+{
+    IReadOnlyList<string> Validate(
+        ProjectionReadModelRequirements requirements,
+        ProjectionReadModelProviderCapabilities capabilities);
+
+    void EnsureSupported(
+        Type readModelType,
+        ProjectionReadModelRequirements requirements,
+        ProjectionReadModelProviderCapabilities capabilities);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderRegistry.cs
new file mode 100644
index 000000000..a33e22da7
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderRegistry.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionReadModelProviderRegistry
+{
+    IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> GetRegistrations<TReadModel, TKey>(
+        IServiceProvider serviceProvider)
+        where TReadModel : class;
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderSelector.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderSelector.cs
new file mode 100644
index 000000000..6bda674a9
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderSelector.cs
@@ -0,0 +1,10 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionReadModelProviderSelector
+{
+    IProjectionReadModelStoreRegistration<TReadModel, TKey> Select<TReadModel, TKey>(
+        IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> registrations,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements)
+        where TReadModel : class;
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreFactory.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreFactory.cs
new file mode 100644
index 000000000..4d7e88640
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreFactory.cs
@@ -0,0 +1,10 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionReadModelStoreFactory
+{
+    IProjectionReadModelStore<TReadModel, TKey> Create<TReadModel, TKey>(
+        IServiceProvider serviceProvider,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements)
+        where TReadModel : class;
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionProviderSelectionException.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionProviderSelectionException.cs
new file mode 100644
index 000000000..93b470eb7
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionProviderSelectionException.cs
@@ -0,0 +1,37 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class ProjectionProviderSelectionException : InvalidOperationException
+{
+    public ProjectionProviderSelectionException(
+        Type readModelType,
+        string requestedProviderName,
+        IReadOnlyList<string> availableProviders,
+        string reason)
+        : base(BuildMessage(readModelType, requestedProviderName, availableProviders, reason))
+    {
+        ReadModelType = readModelType;
+        RequestedProviderName = requestedProviderName;
+        AvailableProviders = availableProviders;
+        Reason = reason;
+    }
+
+    public Type ReadModelType { get; }
+
+    public string RequestedProviderName { get; }
+
+    public IReadOnlyList<string> AvailableProviders { get; }
+
+    public string Reason { get; }
+
+    private static string BuildMessage(
+        Type readModelType,
+        string requestedProviderName,
+        IReadOnlyList<string> availableProviders,
+        string reason)
+    {
+        var requested = requestedProviderName.Length == 0 ? "<unspecified>" : requestedProviderName;
+        var available = availableProviders.Count == 0 ? "<none>" : string.Join(", ", availableProviders);
+        return $"Provider selection failed for read-model '{readModelType.FullName}'. " +
+               $"requested={requested}; available={available}; reason={reason}.";
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelBindingException.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelBindingException.cs
new file mode 100644
index 000000000..f43b5efef
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelBindingException.cs
@@ -0,0 +1,33 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class ProjectionReadModelBindingException : InvalidOperationException
+{
+    public ProjectionReadModelBindingException(
+        Type readModelType,
+        string bindingKey,
+        string bindingValue,
+        string reason)
+        : base(BuildMessage(readModelType, bindingKey, bindingValue, reason))
+    {
+        ReadModelType = readModelType;
+        BindingKey = bindingKey;
+        BindingValue = bindingValue;
+        Reason = reason;
+    }
+
+    public Type ReadModelType { get; }
+
+    public string BindingKey { get; }
+
+    public string BindingValue { get; }
+
+    public string Reason { get; }
+
+    private static string BuildMessage(
+        Type readModelType,
+        string bindingKey,
+        string bindingValue,
+        string reason) =>
+        $"Read-model binding is invalid for '{readModelType.FullName}'. " +
+        $"key='{bindingKey}', value='{bindingValue}', reason='{reason}'.";
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelMode.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelMode.cs
new file mode 100644
index 000000000..c6fcbdacc
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelMode.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public enum ProjectionReadModelMode
+{
+    CustomReadModel = 0,
+    DefaultReadModel = 1,
+    StateOnly = 2,
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
index 4954b3bb7..de1ca1ac1 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
@@ -7,6 +7,8 @@ public ProjectionReadModelRuntimeOptions()
         Bindings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
     }
 
+    public ProjectionReadModelMode Mode { get; set; } = ProjectionReadModelMode.CustomReadModel;
+
     public string Provider { get; set; } = ProjectionReadModelProviderNames.InMemory;
 
     public bool FailOnUnsupportedCapabilities { get; set; } = true;
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Abstractions/README.md
index 1f265fbba..6b3efd136 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Abstractions/README.md
@@ -10,8 +10,9 @@
 - 读模型存储：`IProjectionReadModelStore<,>`
 - Provider 能力建模：`ProjectionReadModelProviderCapabilities`、`IProjectionReadModelStoreProviderMetadata`
 - 能力校验：`ProjectionReadModelRequirements`、`ProjectionReadModelCapabilityValidator`
-- Provider 注册与选择：`IProjectionReadModelStoreRegistration<,>`、`DelegateProjectionReadModelStoreRegistration<,>`、`ProjectionReadModelStoreSelector`
-- Provider 运行配置：`ProjectionReadModelRuntimeOptions`
+- Provider 注册与选择契约：`IProjectionReadModelStoreRegistration<,>`、`DelegateProjectionReadModelStoreRegistration<,>`
+- Provider Runtime 契约：`IProjectionReadModelProviderRegistry`、`IProjectionReadModelProviderSelector`、`IProjectionReadModelBindingResolver`、`IProjectionReadModelStoreFactory`
+- Provider 运行配置：`ProjectionReadModelRuntimeOptions`、`ProjectionReadModelMode`
 - 运行时策略：`IProjectionRuntimeOptions`、`IProjectionClock`
 - 流订阅复用：`IActorStreamSubscriptionHub<TMessage>`
 - 投影上下文：`IProjectionContext`
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
index b193b1845..772146682 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
@@ -12,5 +12,6 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
   </ItemGroup>
 </Project>
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index ccf96aa14..496fa1b4f 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -1,6 +1,7 @@
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
 
 namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
 
@@ -33,7 +34,8 @@ public static IServiceCollection AddElasticsearchReadModelStoreRegistration<TRea
                     indexScope,
                     keySelector,
                     keyFormatter,
-                    providerName)));
+                    providerName,
+                    provider.GetService<ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>>())));
 
         return services;
     }
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
index 57bb111f3..12d6d1cff 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
@@ -5,6 +5,7 @@
 - 不依赖任何业务域 read model。
 - 通过 `IProjectionReadModelStoreRegistration<TReadModel, TKey>` 与上层模块解耦集成。
 - 能力声明：`Document` 索引、alias、schema validation。
+- 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
 
 ## DI 注册
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
index 3dcb3dc7d..a7c9e41fa 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
@@ -3,6 +3,8 @@
 using System.Text;
 using System.Text.Json;
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
 
 namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
 
@@ -19,6 +21,7 @@ public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
     private readonly int _listTakeMax;
     private readonly bool _autoCreateIndex;
     private readonly string _listSortField;
+    private readonly ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>> _logger;
     private readonly SemaphoreSlim _indexInitializationLock = new(1, 1);
     private readonly JsonSerializerOptions _jsonOptions = new()
     {
@@ -31,7 +34,8 @@ public ElasticsearchProjectionReadModelStore(
         string indexScope,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
-        string providerName = ProjectionReadModelProviderNames.Elasticsearch)
+        string providerName = ProjectionReadModelProviderNames.Elasticsearch,
+        ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>? logger = null)
     {
         ArgumentNullException.ThrowIfNull(options);
         ArgumentNullException.ThrowIfNull(keySelector);
@@ -60,6 +64,7 @@ public ElasticsearchProjectionReadModelStore(
         _keySelector = keySelector;
         _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
         _listSortField = options.ListSortField?.Trim() ?? "";
+        _logger = logger ?? NullLogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>.Instance;
         ProviderCapabilities = BuildCapabilities(providerName);
     }
 
@@ -147,12 +152,39 @@ private async Task UpsertCoreAsync(TReadModel readModel, bool allowCreateIndex,
 
         var keyValue = ResolveReadModelKey(readModel);
         var payload = JsonSerializer.Serialize(readModel, _jsonOptions);
-        using var request = new HttpRequestMessage(HttpMethod.Put, $"{_indexName}/_doc/{Uri.EscapeDataString(keyValue)}")
+        var startedAt = DateTimeOffset.UtcNow;
+        try
         {
-            Content = new StringContent(payload, Encoding.UTF8, "application/json"),
-        };
-        using var response = await _httpClient.SendAsync(request, ct);
-        await EnsureSuccessAsync(response, "upsert", ct);
+            using var request = new HttpRequestMessage(HttpMethod.Put, $"{_indexName}/_doc/{Uri.EscapeDataString(keyValue)}")
+            {
+                Content = new StringContent(payload, Encoding.UTF8, "application/json"),
+            };
+            using var response = await _httpClient.SendAsync(request, ct);
+            await EnsureSuccessAsync(response, "upsert", ct);
+
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogInformation(
+                "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
+                ProviderCapabilities.ProviderName,
+                typeof(TReadModel).FullName,
+                keyValue,
+                elapsedMs,
+                "ok");
+        }
+        catch (Exception ex)
+        {
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogError(
+                ex,
+                "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
+                ProviderCapabilities.ProviderName,
+                typeof(TReadModel).FullName,
+                keyValue,
+                elapsedMs,
+                "failed",
+                ex.GetType().Name);
+            throw;
+        }
     }
 
     private string ResolveReadModelKey(TReadModel readModel)
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj
new file mode 100644
index 000000000..9dbda873a
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj
@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AssemblyName>Aevatar.CQRS.Projection.Providers.Neo4j</AssemblyName>
+    <RootNamespace>Aevatar.CQRS.Projection.Providers.Neo4j</RootNamespace>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
+    <PackageReference Include="Neo4j.Driver" />
+  </ItemGroup>
+</Project>
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionReadModelStoreOptions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionReadModelStoreOptions.cs
new file mode 100644
index 000000000..7c1feb453
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionReadModelStoreOptions.cs
@@ -0,0 +1,20 @@
+namespace Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
+
+public sealed class Neo4jProjectionReadModelStoreOptions
+{
+    public string Uri { get; set; } = "bolt://localhost:7687";
+
+    public string Username { get; set; } = "neo4j";
+
+    public string Password { get; set; } = "";
+
+    public string Database { get; set; } = "";
+
+    public int RequestTimeoutMs { get; set; } = 5000;
+
+    public int ListTakeMax { get; set; } = 200;
+
+    public bool AutoCreateConstraints { get; set; } = true;
+
+    public string NodeLabel { get; set; } = "ProjectionReadModel";
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
new file mode 100644
index 000000000..c8ea3ce45
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -0,0 +1,42 @@
+using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
+using Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+
+namespace Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
+
+public static class ServiceCollectionExtensions
+{
+    public static IServiceCollection AddNeo4jReadModelStoreRegistration<TReadModel, TKey>(
+        this IServiceCollection services,
+        Func<IServiceProvider, Neo4jProjectionReadModelStoreOptions> optionsFactory,
+        string scope,
+        Func<TReadModel, TKey> keySelector,
+        Func<TKey, string>? keyFormatter = null,
+        string providerName = ProjectionReadModelProviderNames.Neo4j)
+        where TReadModel : class
+    {
+        ArgumentNullException.ThrowIfNull(optionsFactory);
+        ArgumentException.ThrowIfNullOrWhiteSpace(scope);
+        ArgumentNullException.ThrowIfNull(keySelector);
+
+        services.AddSingleton<IProjectionReadModelStoreRegistration<TReadModel, TKey>>(
+            new DelegateProjectionReadModelStoreRegistration<TReadModel, TKey>(
+                providerName,
+                new ProjectionReadModelProviderCapabilities(
+                    providerName,
+                    supportsIndexing: true,
+                    indexKinds: [ProjectionReadModelIndexKind.Graph],
+                    supportsAliases: false,
+                    supportsSchemaValidation: true),
+                provider => new Neo4jProjectionReadModelStore<TReadModel, TKey>(
+                    optionsFactory(provider),
+                    scope,
+                    keySelector,
+                    keyFormatter,
+                    providerName,
+                    provider.GetService<ILogger<Neo4jProjectionReadModelStore<TReadModel, TKey>>>())));
+
+        return services;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs
new file mode 100644
index 000000000..b07fa3dbd
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs
@@ -0,0 +1 @@
+global using Aevatar.CQRS.Projection.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
new file mode 100644
index 000000000..b5d96d5cd
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
@@ -0,0 +1,22 @@
+# Aevatar.CQRS.Projection.Providers.Neo4j
+
+通用 Neo4j Graph ReadModel Provider。
+
+- 不依赖任何业务域 read model。
+- 通过 `IProjectionReadModelStoreRegistration<TReadModel, TKey>` 与上层模块解耦集成。
+- 能力声明：`Graph` 索引、schema validation。
+- 基于官方 `Neo4j.Driver` 实现连接与会话管理。
+- 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
+
+## DI 注册
+
+使用扩展方法：
+
+- `AddNeo4jReadModelStoreRegistration<TReadModel, TKey>(...)`
+
+关键参数：
+
+- `optionsFactory`：绑定 `Projection:ReadModel:Providers:Neo4j:*` 配置。
+- `scope`：图存储作用域（等价于 document provider 的 indexScope）。
+- `keySelector/keyFormatter`：ReadModel 主键映射。
+- `providerName`：默认 `Neo4j`（与 `ProjectionReadModelProviderNames.Neo4j` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
new file mode 100644
index 000000000..d255ac9d6
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
@@ -0,0 +1,293 @@
+using System.Text.Json;
+using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+using Neo4j.Driver;
+
+namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
+
+public sealed class Neo4jProjectionReadModelStore<TReadModel, TKey>
+    : IProjectionReadModelStore<TReadModel, TKey>,
+      IProjectionReadModelStoreProviderMetadata,
+      IAsyncDisposable
+    where TReadModel : class
+{
+    private readonly IDriver _driver;
+    private readonly Func<TReadModel, TKey> _keySelector;
+    private readonly Func<TKey, string> _keyFormatter;
+    private readonly string _scope;
+    private readonly string _database;
+    private readonly int _listTakeMax;
+    private readonly string _label;
+    private readonly bool _autoCreateConstraints;
+    private readonly ILogger<Neo4jProjectionReadModelStore<TReadModel, TKey>> _logger;
+    private readonly SemaphoreSlim _schemaLock = new(1, 1);
+    private readonly JsonSerializerOptions _jsonOptions = new()
+    {
+        PropertyNameCaseInsensitive = true,
+    };
+    private bool _schemaInitialized;
+
+    public Neo4jProjectionReadModelStore(
+        Neo4jProjectionReadModelStoreOptions options,
+        string scope,
+        Func<TReadModel, TKey> keySelector,
+        Func<TKey, string>? keyFormatter = null,
+        string providerName = ProjectionReadModelProviderNames.Neo4j,
+        ILogger<Neo4jProjectionReadModelStore<TReadModel, TKey>>? logger = null)
+    {
+        ArgumentNullException.ThrowIfNull(options);
+        ArgumentException.ThrowIfNullOrWhiteSpace(scope);
+        ArgumentNullException.ThrowIfNull(keySelector);
+
+        _scope = scope.Trim();
+        _database = options.Database?.Trim() ?? "";
+        _listTakeMax = options.ListTakeMax > 0 ? options.ListTakeMax : 200;
+        _label = NormalizeLabel(options.NodeLabel);
+        _autoCreateConstraints = options.AutoCreateConstraints;
+        _keySelector = keySelector;
+        _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
+        _logger = logger ?? NullLogger<Neo4jProjectionReadModelStore<TReadModel, TKey>>.Instance;
+
+        var auth = string.IsNullOrWhiteSpace(options.Username)
+            ? AuthTokens.None
+            : AuthTokens.Basic(options.Username.Trim(), options.Password ?? "");
+        _driver = GraphDatabase.Driver(options.Uri, auth, config =>
+            config.WithConnectionTimeout(TimeSpan.FromMilliseconds(Math.Max(1000, options.RequestTimeoutMs))));
+
+        ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
+            providerName,
+            supportsIndexing: true,
+            indexKinds: [ProjectionReadModelIndexKind.Graph],
+            supportsAliases: false,
+            supportsSchemaValidation: true);
+    }
+
+    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+
+    public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(readModel);
+        var startedAt = DateTimeOffset.UtcNow;
+        var key = "";
+        try
+        {
+            await EnsureSchemaAsync(ct);
+
+            key = ResolveReadModelKey(readModel);
+            var payload = JsonSerializer.Serialize(readModel, _jsonOptions);
+            var updatedAtEpochMs = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+            var cypher = $"MERGE (n:{_label} {{scope: $scope, id: $id}}) " +
+                         "SET n.payload = $payload, n.updatedAtEpochMs = $updatedAtEpochMs";
+            var parameters = new Dictionary<string, object?>
+            {
+                ["scope"] = _scope,
+                ["id"] = key,
+                ["payload"] = payload,
+                ["updatedAtEpochMs"] = updatedAtEpochMs,
+            };
+
+            await ExecuteWriteAsync(cypher, parameters, ct);
+
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogInformation(
+                "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
+                ProviderCapabilities.ProviderName,
+                typeof(TReadModel).FullName,
+                key,
+                elapsedMs,
+                "ok");
+        }
+        catch (Exception ex)
+        {
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogError(
+                ex,
+                "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
+                ProviderCapabilities.ProviderName,
+                typeof(TReadModel).FullName,
+                key,
+                elapsedMs,
+                "failed",
+                ex.GetType().Name);
+            throw;
+        }
+    }
+
+    public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(mutate);
+        ct.ThrowIfCancellationRequested();
+
+        var existing = await GetAsync(key, ct);
+        if (existing == null)
+            throw new InvalidOperationException($"ReadModel '{typeof(TReadModel).FullName}' with key '{FormatKey(key)}' was not found.");
+
+        mutate(existing);
+        await UpsertAsync(existing, ct);
+    }
+
+    public async Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        await EnsureSchemaAsync(ct);
+
+        var keyValue = FormatKey(key);
+        if (keyValue.Length == 0)
+            return null;
+
+        var cypher = $"MATCH (n:{_label} {{scope: $scope, id: $id}}) " +
+                     "RETURN n.payload AS payload LIMIT 1";
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = _scope,
+            ["id"] = keyValue,
+        };
+        var rows = await ExecuteReadAsync(cypher, parameters, ct);
+        if (rows.Count == 0)
+            return null;
+
+        if (!rows[0].TryGetValue("payload", out var payloadValue))
+            return null;
+
+        var payload = payloadValue.As<string>();
+        return Deserialize(payload);
+    }
+
+    public async Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        await EnsureSchemaAsync(ct);
+        var boundedTake = Math.Clamp(take, 1, _listTakeMax);
+        var cypher = $"MATCH (n:{_label} {{scope: $scope}}) " +
+                     "RETURN n.payload AS payload ORDER BY n.updatedAtEpochMs DESC LIMIT $take";
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = _scope,
+            ["take"] = boundedTake,
+        };
+
+        var rows = await ExecuteReadAsync(cypher, parameters, ct);
+        var readModels = new List<TReadModel>(rows.Count);
+        foreach (var row in rows)
+        {
+            if (!row.TryGetValue("payload", out var payloadValue))
+                continue;
+
+            var item = Deserialize(payloadValue.As<string>());
+            if (item != null)
+                readModels.Add(item);
+        }
+
+        return readModels;
+    }
+
+    public async ValueTask DisposeAsync()
+    {
+        _schemaLock.Dispose();
+        await _driver.DisposeAsync();
+    }
+
+    private async Task EnsureSchemaAsync(CancellationToken ct)
+    {
+        if (!_autoCreateConstraints || _schemaInitialized)
+            return;
+
+        await _schemaLock.WaitAsync(ct);
+        try
+        {
+            if (_schemaInitialized)
+                return;
+
+            var constraintName = NormalizeConstraintName($"projection_readmodel_scope_id_{_label}");
+            var cypher = $"CREATE CONSTRAINT {constraintName} IF NOT EXISTS " +
+                         $"FOR (n:{_label}) REQUIRE (n.scope, n.id) IS UNIQUE";
+            await ExecuteWriteAsync(cypher, new Dictionary<string, object?>(), ct);
+            _schemaInitialized = true;
+        }
+        finally
+        {
+            _schemaLock.Release();
+        }
+    }
+
+    private async Task ExecuteWriteAsync(
+        string cypher,
+        IReadOnlyDictionary<string, object?> parameters,
+        CancellationToken ct)
+    {
+        await using var session = CreateSession(AccessMode.Write);
+        var cursor = await session.RunAsync(cypher, parameters);
+        await cursor.ConsumeAsync();
+        ct.ThrowIfCancellationRequested();
+    }
+
+    private async Task<IReadOnlyList<IReadOnlyDictionary<string, object>>> ExecuteReadAsync(
+        string cypher,
+        IReadOnlyDictionary<string, object?> parameters,
+        CancellationToken ct)
+    {
+        await using var session = CreateSession(AccessMode.Read);
+        var cursor = await session.RunAsync(cypher, parameters);
+        var rows = await cursor.ToListAsync();
+        ct.ThrowIfCancellationRequested();
+        return rows;
+    }
+
+    private IAsyncSession CreateSession(AccessMode accessMode)
+    {
+        return _driver.AsyncSession(options =>
+        {
+            options.WithDefaultAccessMode(accessMode);
+            if (_database.Length > 0)
+                options.WithDatabase(_database);
+        });
+    }
+
+    private string ResolveReadModelKey(TReadModel readModel)
+    {
+        var key = _keySelector(readModel);
+        var keyValue = FormatKey(key);
+        if (keyValue.Length == 0)
+            throw new InvalidOperationException(
+                $"ReadModel '{typeof(TReadModel).FullName}' resolved an empty key for Neo4j persistence.");
+        return keyValue;
+    }
+
+    private string FormatKey(TKey key) => _keyFormatter(key)?.Trim() ?? "";
+
+    private TReadModel? Deserialize(string payload)
+    {
+        var value = JsonSerializer.Deserialize<TReadModel>(payload, _jsonOptions);
+        if (value == null)
+            return null;
+
+        var copied = JsonSerializer.Serialize(value, _jsonOptions);
+        return JsonSerializer.Deserialize<TReadModel>(copied, _jsonOptions);
+    }
+
+    private static string NormalizeLabel(string rawLabel)
+    {
+        var label = (rawLabel ?? "").Trim();
+        if (label.Length == 0)
+            label = "ProjectionReadModel";
+
+        var chars = label
+            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? ch : '_')
+            .ToArray();
+        return new string(chars);
+    }
+
+    private static string NormalizeConstraintName(string rawName)
+    {
+        var chars = rawName
+            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? char.ToLowerInvariant(ch) : '_')
+            .ToArray();
+        var normalized = new string(chars);
+        if (normalized.Length == 0)
+            return "projection_constraint";
+        if (char.IsDigit(normalized[0]))
+            normalized = $"c_{normalized}";
+        return normalized;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj b/src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj
new file mode 100644
index 000000000..a60881234
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj
@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AssemblyName>Aevatar.CQRS.Projection.Runtime</AssemblyName>
+    <RootNamespace>Aevatar.CQRS.Projection.Runtime</RootNamespace>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
+  </ItemGroup>
+</Project>
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
new file mode 100644
index 000000000..0b3dfc039
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -0,0 +1,18 @@
+using Aevatar.CQRS.Projection.Runtime.Runtime;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
+
+namespace Aevatar.CQRS.Projection.Runtime.DependencyInjection;
+
+public static class ServiceCollectionExtensions
+{
+    public static IServiceCollection AddProjectionReadModelRuntime(this IServiceCollection services)
+    {
+        services.TryAddSingleton<IProjectionReadModelCapabilityValidator, ProjectionReadModelCapabilityValidatorService>();
+        services.TryAddSingleton<IProjectionReadModelProviderRegistry, ProjectionReadModelProviderRegistry>();
+        services.TryAddSingleton<IProjectionReadModelProviderSelector, ProjectionReadModelProviderSelector>();
+        services.TryAddSingleton<IProjectionReadModelBindingResolver, ProjectionReadModelBindingResolver>();
+        services.TryAddSingleton<IProjectionReadModelStoreFactory, ProjectionReadModelStoreFactory>();
+        return services;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs
new file mode 100644
index 000000000..b07fa3dbd
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs
@@ -0,0 +1 @@
+global using Aevatar.CQRS.Projection.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Runtime/README.md b/src/Aevatar.CQRS.Projection.Runtime/README.md
new file mode 100644
index 000000000..308cc8e98
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/README.md
@@ -0,0 +1,19 @@
+# Aevatar.CQRS.Projection.Runtime
+
+通用 ReadModel Provider Runtime 组装层。
+
+## 职责
+
+- 收敛 Provider 注册查询（`IProjectionReadModelProviderRegistry`）。
+- 执行 Provider 选择策略（`IProjectionReadModelProviderSelector`）。
+- 解析 ReadModel 绑定需求（`IProjectionReadModelBindingResolver`）。
+- 统一创建 Store 并输出结构化创建日志（`IProjectionReadModelStoreFactory`）。
+
+## DI 入口
+
+- `services.AddProjectionReadModelRuntime()`
+
+## 设计约束
+
+- 不承载业务 ReadModel 类型，不引用 Workflow/AI 等业务模块。
+- 仅依赖抽象与 DI，具体 Provider 由上层模块按需注册。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
new file mode 100644
index 000000000..08f811cd4
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
@@ -0,0 +1,60 @@
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionReadModelBindingResolver : IProjectionReadModelBindingResolver
+{
+    public ProjectionReadModelRequirements Resolve(
+        IReadOnlyDictionary<string, string> readModelBindings,
+        Type readModelType)
+    {
+        ArgumentNullException.ThrowIfNull(readModelBindings);
+        ArgumentNullException.ThrowIfNull(readModelType);
+
+        if (!TryGetBinding(readModelBindings, readModelType, out var bindingKey, out var bindingValue))
+            return new ProjectionReadModelRequirements();
+
+        if (!Enum.TryParse<ProjectionReadModelIndexKind>(bindingValue, true, out var indexKind) ||
+            indexKind == ProjectionReadModelIndexKind.None)
+        {
+            throw new ProjectionReadModelBindingException(
+                readModelType,
+                bindingKey,
+                bindingValue,
+                $"Allowed values are {ProjectionReadModelIndexKind.Document} or {ProjectionReadModelIndexKind.Graph}.");
+        }
+
+        return new ProjectionReadModelRequirements(
+            requiresIndexing: true,
+            requiredIndexKinds: [indexKind]);
+    }
+
+    private static bool TryGetBinding(
+        IReadOnlyDictionary<string, string> readModelBindings,
+        Type readModelType,
+        out string bindingKey,
+        out string bindingValue)
+    {
+        if (readModelBindings.Count == 0)
+        {
+            bindingKey = "";
+            bindingValue = "";
+            return false;
+        }
+
+        if (readModelBindings.TryGetValue(readModelType.Name, out bindingValue!))
+        {
+            bindingKey = readModelType.Name;
+            return true;
+        }
+
+        var fullName = readModelType.FullName ?? "";
+        if (fullName.Length > 0 && readModelBindings.TryGetValue(fullName, out bindingValue!))
+        {
+            bindingKey = fullName;
+            return true;
+        }
+
+        bindingKey = "";
+        bindingValue = "";
+        return false;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelCapabilityValidatorService.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelCapabilityValidatorService.cs
new file mode 100644
index 000000000..ffc731b26
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelCapabilityValidatorService.cs
@@ -0,0 +1,15 @@
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionReadModelCapabilityValidatorService : IProjectionReadModelCapabilityValidator
+{
+    public IReadOnlyList<string> Validate(
+        ProjectionReadModelRequirements requirements,
+        ProjectionReadModelProviderCapabilities capabilities) =>
+        ProjectionReadModelCapabilityValidator.Validate(requirements, capabilities);
+
+    public void EnsureSupported(
+        Type readModelType,
+        ProjectionReadModelRequirements requirements,
+        ProjectionReadModelProviderCapabilities capabilities) =>
+        ProjectionReadModelCapabilityValidator.EnsureSupported(readModelType, requirements, capabilities);
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs
new file mode 100644
index 000000000..909106d55
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs
@@ -0,0 +1,16 @@
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionReadModelProviderRegistry : IProjectionReadModelProviderRegistry
+{
+    public IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> GetRegistrations<TReadModel, TKey>(
+        IServiceProvider serviceProvider)
+        where TReadModel : class
+    {
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+        return serviceProvider
+            .GetServices<IProjectionReadModelStoreRegistration<TReadModel, TKey>>()
+            .ToList();
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
new file mode 100644
index 000000000..85334b91e
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
@@ -0,0 +1,114 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionReadModelProviderSelector
+    : IProjectionReadModelProviderSelector
+{
+    private readonly IProjectionReadModelCapabilityValidator _capabilityValidator;
+    private readonly ILogger<ProjectionReadModelProviderSelector> _logger;
+
+    public ProjectionReadModelProviderSelector(
+        IProjectionReadModelCapabilityValidator capabilityValidator,
+        ILogger<ProjectionReadModelProviderSelector>? logger = null)
+    {
+        _capabilityValidator = capabilityValidator;
+        _logger = logger ?? NullLogger<ProjectionReadModelProviderSelector>.Instance;
+    }
+
+    public IProjectionReadModelStoreRegistration<TReadModel, TKey> Select<TReadModel, TKey>(
+        IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> registrations,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements)
+        where TReadModel : class
+    {
+        ArgumentNullException.ThrowIfNull(registrations);
+        ArgumentNullException.ThrowIfNull(selectionOptions);
+        ArgumentNullException.ThrowIfNull(requirements);
+
+        if (registrations.Count == 0)
+        {
+            throw new ProjectionProviderSelectionException(
+                typeof(TReadModel),
+                selectionOptions.RequestedProviderName?.Trim() ?? "",
+                [],
+                "No provider registrations were found.");
+        }
+
+        var requestedProvider = selectionOptions.RequestedProviderName?.Trim() ?? "";
+        var selected = ResolveRegistration(registrations, requestedProvider);
+        var violations = _capabilityValidator.Validate(requirements, selected.Capabilities);
+        if (violations.Count > 0 && selectionOptions.FailOnUnsupportedCapabilities)
+        {
+            _logger.LogError(
+                "Projection provider capability validation failed. readModel={ReadModel} provider={Provider} requiredCapabilities={RequiredCapabilities} actualCapabilities={ActualCapabilities} violations={Violations}",
+                typeof(TReadModel).FullName,
+                selected.ProviderName,
+                FormatRequirements(requirements),
+                FormatCapabilities(selected.Capabilities),
+                string.Join("; ", violations));
+            throw new ProjectionReadModelCapabilityValidationException(
+                typeof(TReadModel),
+                requirements,
+                selected.Capabilities,
+                violations);
+        }
+
+        _logger.LogInformation(
+            "Projection provider selected. readModel={ReadModel} provider={Provider} failOnUnsupportedCapabilities={FailOnUnsupportedCapabilities}",
+            typeof(TReadModel).FullName,
+            selected.ProviderName,
+            selectionOptions.FailOnUnsupportedCapabilities);
+        return selected;
+    }
+
+    private static IProjectionReadModelStoreRegistration<TReadModel, TKey> ResolveRegistration<TReadModel, TKey>(
+        IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> registrations,
+        string requestedProvider)
+        where TReadModel : class
+    {
+        if (requestedProvider.Length == 0)
+        {
+            if (registrations.Count == 1)
+                return registrations[0];
+
+            throw new ProjectionProviderSelectionException(
+                typeof(TReadModel),
+                requestedProvider,
+                registrations.Select(x => x.ProviderName).ToList(),
+                "Multiple providers are registered but no explicit provider was requested.");
+        }
+
+        var matched = registrations
+            .FirstOrDefault(x => string.Equals(
+                x.ProviderName,
+                requestedProvider,
+                StringComparison.OrdinalIgnoreCase));
+
+        if (matched != null)
+            return matched;
+
+        throw new ProjectionProviderSelectionException(
+            typeof(TReadModel),
+            requestedProvider,
+            registrations.Select(x => x.ProviderName).ToList(),
+            "Requested provider is not registered.");
+    }
+
+    private static string FormatRequirements(ProjectionReadModelRequirements requirements)
+    {
+        return $"requiresIndexing={requirements.RequiresIndexing};" +
+               $"requiredIndexKinds=[{string.Join(",", requirements.RequiredIndexKinds)}];" +
+               $"requiresAliases={requirements.RequiresAliases};" +
+               $"requiresSchemaValidation={requirements.RequiresSchemaValidation}";
+    }
+
+    private static string FormatCapabilities(ProjectionReadModelProviderCapabilities capabilities)
+    {
+        return $"supportsIndexing={capabilities.SupportsIndexing};" +
+               $"indexKinds=[{string.Join(",", capabilities.IndexKinds)}];" +
+               $"supportsAliases={capabilities.SupportsAliases};" +
+               $"supportsSchemaValidation={capabilities.SupportsSchemaValidation}";
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs
new file mode 100644
index 000000000..303b5c8ae
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs
@@ -0,0 +1,63 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionReadModelStoreFactory
+    : IProjectionReadModelStoreFactory
+{
+    private readonly IProjectionReadModelProviderRegistry _providerRegistry;
+    private readonly IProjectionReadModelProviderSelector _providerSelector;
+    private readonly ILogger<ProjectionReadModelStoreFactory> _logger;
+
+    public ProjectionReadModelStoreFactory(
+        IProjectionReadModelProviderRegistry providerRegistry,
+        IProjectionReadModelProviderSelector providerSelector,
+        ILogger<ProjectionReadModelStoreFactory>? logger = null)
+    {
+        _providerRegistry = providerRegistry;
+        _providerSelector = providerSelector;
+        _logger = logger ?? NullLogger<ProjectionReadModelStoreFactory>.Instance;
+    }
+
+    public IProjectionReadModelStore<TReadModel, TKey> Create<TReadModel, TKey>(
+        IServiceProvider serviceProvider,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements)
+        where TReadModel : class
+    {
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+        ArgumentNullException.ThrowIfNull(selectionOptions);
+        ArgumentNullException.ThrowIfNull(requirements);
+
+        var registrations = _providerRegistry.GetRegistrations<TReadModel, TKey>(serviceProvider);
+        var selected = _providerSelector.Select(registrations, selectionOptions, requirements);
+
+        var startedAt = DateTimeOffset.UtcNow;
+        try
+        {
+            var store = selected.Create(serviceProvider);
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogInformation(
+                "Projection read-model store created. provider={Provider} readModelType={ReadModelType} elapsedMs={ElapsedMs} result={Result}",
+                selected.ProviderName,
+                typeof(TReadModel).FullName,
+                elapsedMs,
+                "ok");
+            return store;
+        }
+        catch (Exception ex)
+        {
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogError(
+                ex,
+                "Projection read-model store creation failed. provider={Provider} readModelType={ReadModelType} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
+                selected.ProviderName,
+                typeof(TReadModel).FullName,
+                elapsedMs,
+                "failed",
+                ex.GetType().Name);
+            throw;
+        }
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/Abstractions/IStateMirrorProjection.cs b/src/Aevatar.CQRS.Projection.StateMirror/Abstractions/IStateMirrorProjection.cs
new file mode 100644
index 000000000..78a1093cc
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.StateMirror/Abstractions/IStateMirrorProjection.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.StateMirror.Abstractions;
+
+public interface IStateMirrorProjection<TState, TReadModel>
+    where TState : class
+    where TReadModel : class
+{
+    TReadModel Project(TState state);
+}
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj b/src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj
new file mode 100644
index 000000000..aa8535575
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj
@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AssemblyName>Aevatar.CQRS.Projection.StateMirror</AssemblyName>
+    <RootNamespace>Aevatar.CQRS.Projection.StateMirror</RootNamespace>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
+  </ItemGroup>
+</Project>
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/Configuration/StateMirrorProjectionOptions.cs b/src/Aevatar.CQRS.Projection.StateMirror/Configuration/StateMirrorProjectionOptions.cs
new file mode 100644
index 000000000..d04dc14a3
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.StateMirror/Configuration/StateMirrorProjectionOptions.cs
@@ -0,0 +1,14 @@
+namespace Aevatar.CQRS.Projection.StateMirror.Configuration;
+
+public sealed class StateMirrorProjectionOptions
+{
+    public StateMirrorProjectionOptions()
+    {
+        IgnoredFields = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+        RenamedFields = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+    }
+
+    public HashSet<string> IgnoredFields { get; }
+
+    public Dictionary<string, string> RenamedFields { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs
new file mode 100644
index 000000000..6785135df
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs
@@ -0,0 +1,25 @@
+using Aevatar.CQRS.Projection.StateMirror.Abstractions;
+using Aevatar.CQRS.Projection.StateMirror.Configuration;
+using Aevatar.CQRS.Projection.StateMirror.Services;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
+
+namespace Aevatar.CQRS.Projection.StateMirror.DependencyInjection;
+
+public static class ServiceCollectionExtensions
+{
+    public static IServiceCollection AddJsonStateMirrorProjection<TState, TReadModel>(
+        this IServiceCollection services,
+        Action<StateMirrorProjectionOptions>? configure = null)
+        where TState : class
+        where TReadModel : class
+    {
+        var options = new StateMirrorProjectionOptions();
+        configure?.Invoke(options);
+
+        services.TryAddSingleton(options);
+        services.TryAddSingleton<IStateMirrorProjection<TState, TReadModel>,
+            JsonStateMirrorProjection<TState, TReadModel>>();
+        return services;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.StateMirror/GlobalUsings.cs
new file mode 100644
index 000000000..b07fa3dbd
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.StateMirror/GlobalUsings.cs
@@ -0,0 +1 @@
+global using Aevatar.CQRS.Projection.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/README.md b/src/Aevatar.CQRS.Projection.StateMirror/README.md
new file mode 100644
index 000000000..368e24c87
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.StateMirror/README.md
@@ -0,0 +1,8 @@
+# Aevatar.CQRS.Projection.StateMirror
+
+通用 `State -> ReadModel` 镜像组件。
+
+- 默认实现：`JsonStateMirrorProjection<TState, TReadModel>`。
+- 支持字段忽略：`StateMirrorProjectionOptions.IgnoredFields`。
+- 支持字段重命名：`StateMirrorProjectionOptions.RenamedFields`。
+- 可作为 `DefaultReadModel` 模式的基础设施组件复用。
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/Services/JsonStateMirrorProjection.cs b/src/Aevatar.CQRS.Projection.StateMirror/Services/JsonStateMirrorProjection.cs
new file mode 100644
index 000000000..bc25e507e
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.StateMirror/Services/JsonStateMirrorProjection.cs
@@ -0,0 +1,67 @@
+using System.Text.Json;
+using System.Text.Json.Nodes;
+using Aevatar.CQRS.Projection.StateMirror.Abstractions;
+using Aevatar.CQRS.Projection.StateMirror.Configuration;
+
+namespace Aevatar.CQRS.Projection.StateMirror.Services;
+
+public sealed class JsonStateMirrorProjection<TState, TReadModel>
+    : IStateMirrorProjection<TState, TReadModel>
+    where TState : class
+    where TReadModel : class
+{
+    private readonly StateMirrorProjectionOptions _options;
+    private readonly JsonSerializerOptions _serializerOptions = new()
+    {
+        PropertyNameCaseInsensitive = true,
+    };
+
+    public JsonStateMirrorProjection(StateMirrorProjectionOptions options)
+    {
+        _options = options;
+    }
+
+    public TReadModel Project(TState state)
+    {
+        ArgumentNullException.ThrowIfNull(state);
+
+        var rootNode = JsonSerializer.SerializeToNode(state, _serializerOptions);
+        if (rootNode is not JsonObject sourceObject)
+        {
+            throw new InvalidOperationException(
+                $"State '{typeof(TState).FullName}' cannot be projected to '{typeof(TReadModel).FullName}'.");
+        }
+
+        var mirroredObject = new JsonObject();
+        foreach (var property in sourceObject)
+        {
+            if (property.Key == null)
+                continue;
+            if (_options.IgnoredFields.Contains(property.Key))
+                continue;
+
+            var targetName = ResolveTargetName(property.Key);
+            mirroredObject[targetName] = property.Value?.DeepClone();
+        }
+
+        var projected = mirroredObject.Deserialize<TReadModel>(_serializerOptions);
+        if (projected == null)
+        {
+            throw new InvalidOperationException(
+                $"State projection failed from '{typeof(TState).FullName}' to '{typeof(TReadModel).FullName}'.");
+        }
+
+        return projected;
+    }
+
+    private string ResolveTargetName(string sourceName)
+    {
+        if (_options.RenamedFields.TryGetValue(sourceName, out var targetName) &&
+            !string.IsNullOrWhiteSpace(targetName))
+        {
+            return targetName.Trim();
+        }
+
+        return sourceName;
+    }
+}
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs b/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs
index caf0ae0d0..a350bc4cf 100644
--- a/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs
+++ b/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs
@@ -1,12 +1,15 @@
 // ─────────────────────────────────────────────────────────────
-// EventSourcingBehavior — ES mixin default implementation.
-// Provides RaiseEvent / ConfirmEventsAsync / ReplayAsync.
+// EventSourcingBehavior — explicit event-first default implementation.
+// Provides RaiseEvent / ConfirmEventsAsync / PersistSnapshotAsync / ReplayAsync.
 // ─────────────────────────────────────────────────────────────
 
 using Aevatar.Foundation.Abstractions.Helpers;
 using Aevatar.Foundation.Abstractions.Persistence;
 using Google.Protobuf;
 using Google.Protobuf.WellKnownTypes;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+using System.Diagnostics;
 
 namespace Aevatar.Foundation.Core.EventSourcing;
 
@@ -17,14 +20,25 @@ public class EventSourcingBehavior<TState> : IEventSourcingBehavior<TState>
     where TState : class, IMessage<TState>, new()
 {
     private readonly IEventStore _eventStore;
+    private readonly IEventSourcingSnapshotStore<TState>? _snapshotStore;
+    private readonly ISnapshotStrategy _snapshotStrategy;
+    private readonly ILogger<EventSourcingBehavior<TState>> _logger;
     private readonly List<IMessage> _pending = [];
     private readonly string _agentId;
     private long _currentVersion;
 
-    public EventSourcingBehavior(IEventStore eventStore, string agentId)
+    public EventSourcingBehavior(
+        IEventStore eventStore,
+        string agentId,
+        IEventSourcingSnapshotStore<TState>? snapshotStore = null,
+        ISnapshotStrategy? snapshotStrategy = null,
+        ILogger<EventSourcingBehavior<TState>>? logger = null)
     {
         _eventStore = eventStore;
         _agentId = agentId;
+        _snapshotStore = snapshotStore;
+        _snapshotStrategy = snapshotStrategy ?? NeverSnapshotStrategy.Instance;
+        _logger = logger ?? NullLogger<EventSourcingBehavior<TState>>.Instance;
     }
 
     /// <inheritdoc />
@@ -37,8 +51,14 @@ public void RaiseEvent<TEvent>(TEvent evt) where TEvent : IMessage =>
     /// <inheritdoc />
     public async Task ConfirmEventsAsync(CancellationToken ct = default)
     {
-        if (_pending.Count == 0) return;
+        if (_pending.Count == 0)
+            return;
 
+        EnsureNoStateSnapshotEvents();
+
+        var fromVersion = _currentVersion;
+        var eventType = JoinEventTypes(_pending);
+        var startedAt = Stopwatch.GetTimestamp();
         var stateEvents = _pending.Select((evt, i) => new StateEvent
         {
             EventId = Guid.NewGuid().ToString("N"),
@@ -49,18 +69,83 @@ public async Task ConfirmEventsAsync(CancellationToken ct = default)
             AgentId = _agentId,
         });
 
-        _currentVersion = await _eventStore.AppendAsync(
-            _agentId, stateEvents, _currentVersion, ct);
-        _pending.Clear();
+        try
+        {
+            _currentVersion = await _eventStore.AppendAsync(
+                _agentId, stateEvents, _currentVersion, ct);
+            _pending.Clear();
+            _logger.LogInformation(
+                "Event sourcing commit completed. agentId={AgentId} eventType={EventType} version={Version} elapsedMs={ElapsedMs} result={Result}",
+                _agentId,
+                eventType,
+                _currentVersion,
+                Stopwatch.GetElapsedTime(startedAt).TotalMilliseconds,
+                "ok");
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(
+                ex,
+                "Event sourcing commit failed. agentId={AgentId} eventType={EventType} version={Version} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
+                _agentId,
+                eventType,
+                fromVersion,
+                Stopwatch.GetElapsedTime(startedAt).TotalMilliseconds,
+                "failed",
+                ex.GetType().Name);
+            throw;
+        }
+    }
+
+    /// <inheritdoc />
+    public async Task PersistSnapshotAsync(
+        TState currentState,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(currentState);
+        ct.ThrowIfCancellationRequested();
+
+        if (_snapshotStore == null)
+            return;
+
+        if (!_snapshotStrategy.ShouldCreateSnapshot(_currentVersion))
+            return;
+
+        try
+        {
+            await _snapshotStore.SaveAsync(
+                _agentId,
+                new EventSourcingSnapshot<TState>(currentState.Clone(), _currentVersion),
+                ct);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(
+                ex,
+                "Event sourcing snapshot save failed and will be ignored. agentId={AgentId} version={Version} result={Result} errorType={ErrorType}",
+                _agentId,
+                _currentVersion,
+                "ignored",
+                ex.GetType().Name);
+        }
     }
 
     /// <inheritdoc />
     public async Task<TState?> ReplayAsync(string agentId, CancellationToken ct = default)
     {
-        var events = await _eventStore.GetEventsAsync(agentId, fromVersion: null, ct);
-        if (events.Count == 0) return null;
+        var snapshot = await TryLoadSnapshotAsync(agentId, ct);
+        long? fromVersion = snapshot?.Version;
+        var events = await _eventStore.GetEventsAsync(agentId, fromVersion, ct);
+        if (events.Count == 0)
+        {
+            if (snapshot == null)
+                return null;
+
+            _currentVersion = snapshot.Version;
+            return snapshot.State;
+        }
 
-        var state = new TState();
+        var state = snapshot?.State ?? new TState();
         foreach (var stateEvent in events)
         {
             if (stateEvent.EventData != null)
@@ -74,5 +159,41 @@ public async Task ConfirmEventsAsync(CancellationToken ct = default)
     /// <summary>
     /// Default: returns current unchanged. Override in derived behavior or agent to apply events.
     /// </summary>
-    public virtual TState TransitionState(TState current, IMessage evt) => current;
+    public virtual TState TransitionState(TState current, IMessage evt)
+        => current;
+
+    private void EnsureNoStateSnapshotEvents()
+    {
+        var stateTypeFullName = new TState().Descriptor.FullName;
+        if (_pending.Any(evt =>
+                string.Equals(evt.Descriptor.FullName, stateTypeFullName, StringComparison.Ordinal)))
+        {
+            throw new InvalidOperationException(
+                $"Persisting state snapshot events is forbidden for state '{typeof(TState).FullName}'. " +
+                "Emit domain events instead.");
+        }
+    }
+
+    private async Task<EventSourcingSnapshot<TState>?> TryLoadSnapshotAsync(
+        string agentId,
+        CancellationToken ct)
+    {
+        if (_snapshotStore == null)
+            return null;
+
+        var snapshot = await _snapshotStore.LoadAsync(agentId, ct);
+        if (snapshot == null)
+            return null;
+
+        return new EventSourcingSnapshot<TState>(snapshot.State.Clone(), snapshot.Version);
+    }
+
+    private static string JoinEventTypes(IEnumerable<IMessage> events)
+    {
+        var eventTypes = events
+            .Select(evt => evt.Descriptor.FullName)
+            .Distinct(StringComparer.Ordinal)
+            .ToArray();
+        return eventTypes.Length == 0 ? "<none>" : string.Join(",", eventTypes);
+    }
 }
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingSnapshot.cs b/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingSnapshot.cs
new file mode 100644
index 000000000..83ef5d8c9
--- /dev/null
+++ b/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingSnapshot.cs
@@ -0,0 +1,6 @@
+namespace Aevatar.Foundation.Core.EventSourcing;
+
+public sealed record EventSourcingSnapshot<TState>(
+    TState State,
+    long Version)
+    where TState : class;
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs b/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs
index 90c3a1fe7..457e6e95b 100644
--- a/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs
+++ b/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs
@@ -1,6 +1,6 @@
 // ─────────────────────────────────────────────────────────────
-// IEventSourcingBehavior — Event Sourcing mixin interface.
-// Agents enable ES by having this behavior injected via DI; no extra inheritance.
+// IEventSourcingBehavior — explicit event-first behavior contract.
+// Stateful agents must persist domain events and replay them for recovery.
 // ─────────────────────────────────────────────────────────────
 
 using Google.Protobuf;
@@ -8,8 +8,8 @@
 namespace Aevatar.Foundation.Core.EventSourcing;
 
 /// <summary>
-/// Event Sourcing behavior. Agents enable ES by having this interface injected via DI.
-/// If not injected, ES is not used — pure mixin, no extra base class required.
+/// Event Sourcing behavior.
+/// Stateful agents persist explicit domain events and recover state from replay.
 /// </summary>
 public interface IEventSourcingBehavior<TState> where TState : class, IMessage
 {
@@ -22,6 +22,14 @@ public interface IEventSourcingBehavior<TState> where TState : class, IMessage
     /// <summary>Persist all pending events to IEventStore.</summary>
     Task ConfirmEventsAsync(CancellationToken ct = default);
 
+    /// <summary>
+    /// Persist a snapshot for replay optimization.
+    /// Snapshot failure must not affect committed event facts.
+    /// </summary>
+    Task PersistSnapshotAsync(
+        TState currentState,
+        CancellationToken ct = default);
+
     /// <summary>Replay events from IEventStore to rebuild state.</summary>
     Task<TState?> ReplayAsync(string agentId, CancellationToken ct = default);
 
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingSnapshotStore.cs b/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingSnapshotStore.cs
new file mode 100644
index 000000000..c163a7aec
--- /dev/null
+++ b/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingSnapshotStore.cs
@@ -0,0 +1,14 @@
+namespace Aevatar.Foundation.Core.EventSourcing;
+
+public interface IEventSourcingSnapshotStore<TState>
+    where TState : class
+{
+    Task<EventSourcingSnapshot<TState>?> LoadAsync(
+        string agentId,
+        CancellationToken ct = default);
+
+    Task SaveAsync(
+        string agentId,
+        EventSourcingSnapshot<TState> snapshot,
+        CancellationToken ct = default);
+}
diff --git a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
index f3dafe63d..ea19c04e6 100644
--- a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
+++ b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
@@ -1,15 +1,16 @@
 // ─────────────────────────────────────────────────────────────
 // GAgentBase<TState> - stateful base class for GAgent.
-// State + StateStore + OnStateChanged Hook
+// State + mandatory EventSourcing + OnStateChanged Hook
 // ─────────────────────────────────────────────────────────────
 
 using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Core.EventSourcing;
 using Google.Protobuf;
 
 namespace Aevatar.Foundation.Core;
 
 /// <summary>
-/// Stateful GAgent base class with Protobuf state storage, StateStore persistence, and lifecycle hooks.
+/// Stateful GAgent base class with Protobuf state and mandatory Event Sourcing lifecycle.
 /// </summary>
 /// <typeparam name="TState">Protobuf-generated state type.</typeparam>
 public abstract class GAgentBase<TState> : GAgentBase, IAgent<TState>
@@ -27,25 +28,27 @@ public TState State
     /// <summary>State persistence store injected by runtime.</summary>
     public IStateStore<TState>? StateStore { get; set; }
 
-    /// <summary>Activates agent, restores state from StateStore, then calls OnActivateAsync.</summary>
+    /// <summary>Event Sourcing behavior injected by runtime; required for state recovery and commit.</summary>
+    public IEventSourcingBehavior<TState>? EventSourcing { get; set; }
+
+    /// <summary>Activates agent, replays events to restore state, then calls OnActivateAsync.</summary>
     public override async Task ActivateAsync(CancellationToken ct = default)
     {
         await base.ActivateAsync(ct); // Restore modules
         using var guard = StateGuard.BeginWriteScope();
-        if (StateStore != null)
-        {
-            var loaded = await StateStore.LoadAsync(Id, ct);
-            if (loaded != null) _state = loaded;
-        }
+        var eventSourcing = EnsureEventSourcingConfigured();
+        var replayed = await eventSourcing.ReplayAsync(Id, ct);
+        _state = replayed ?? new TState();
         await OnActivateAsync(ct);
     }
 
-    /// <summary>Deactivates agent, calls OnDeactivateAsync, and persists state.</summary>
+    /// <summary>Deactivates agent, flushes pending events, and optionally persists snapshot optimization.</summary>
     public override async Task DeactivateAsync(CancellationToken ct = default)
     {
+        var eventSourcing = EnsureEventSourcingConfigured();
         await OnDeactivateAsync(ct);
-        if (StateStore != null)
-            await StateStore.SaveAsync(Id, _state, ct);
+        await eventSourcing.ConfirmEventsAsync(ct);
+        await eventSourcing.PersistSnapshotAsync(_state, ct);
     }
 
     /// <summary>Hook invoked after state changes, useful for CQRS projection.</summary>
@@ -57,4 +60,20 @@ protected virtual Task OnStateChangedAsync(TState state, CancellationToken ct) =
 
     /// <summary>Deactivation hook for subclass cleanup.</summary>
     protected virtual Task OnDeactivateAsync(CancellationToken ct) => Task.CompletedTask;
+
+    private IEventSourcingBehavior<TState> EnsureEventSourcingConfigured()
+    {
+        if (EventSourcing != null)
+            return EventSourcing;
+
+        if (Services?.GetService(typeof(IEventStore)) is IEventStore eventStore)
+        {
+            EventSourcing = new EventSourcingBehavior<TState>(eventStore, Id);
+            return EventSourcing;
+        }
+
+        throw new InvalidOperationException(
+            $"Stateful agent '{GetType().FullName}' requires '{typeof(IEventSourcingBehavior<TState>).FullName}' " +
+            $"for actor '{Id}'.");
+    }
 }
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
index 749a150ff..0dbb40894 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
@@ -11,7 +11,6 @@ namespace Aevatar.Foundation.Runtime.Implementations.Orleans.Grains;
 public sealed class RuntimeActorGrain : Grain, IRuntimeActorGrain
 {
     private readonly IPersistentState<RuntimeActorGrainState> _state;
-    private readonly IRuntimeActorStateBindingAccessor _stateBindingAccessor;
     private IAgent? _agent;
     private IEventDeduplicator? _deduplicator;
     private IEnvelopePropagationPolicy _propagationPolicy =
@@ -22,12 +21,9 @@ public sealed class RuntimeActorGrain : Grain, IRuntimeActorGrain
     private StreamSubscriptionHandle<EventEnvelope>? _selfStreamHandle;
 
     public RuntimeActorGrain(
-        [PersistentState("agent", OrleansRuntimeConstants.GrainStateStorageName)]
-        IPersistentState<RuntimeActorGrainState> state,
-        IRuntimeActorStateBindingAccessor stateBindingAccessor)
+        [PersistentState("agent", OrleansRuntimeConstants.GrainStateStorageName)] IPersistentState<RuntimeActorGrainState> state)
     {
         _state = state;
-        _stateBindingAccessor = stateBindingAccessor;
     }
 
     public override async Task OnActivateAsync(CancellationToken cancellationToken)
@@ -270,28 +266,6 @@ private void InjectDependencies(IAgent agent, string actorId)
         gAgent.Logger = agentLogger;
         gAgent.Services = ServiceProvider;
         gAgent.ManifestStore = ServiceProvider.GetService<IAgentManifestStore>();
-
-        InjectStateStore(agent);
-    }
-
-    private void InjectStateStore(IAgent agent)
-    {
-        var type = agent.GetType();
-        while (type != null)
-        {
-            if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(GAgentBase<>))
-            {
-                var stateType = type.GetGenericArguments()[0];
-                var stateStoreType = typeof(IStateStore<>).MakeGenericType(stateType);
-                using var binding = _stateBindingAccessor.Bind(_state);
-                var stateStore = ServiceProvider.GetService(stateStoreType);
-                if (stateStore != null)
-                    type.GetProperty("StateStore")?.SetValue(agent, stateStore);
-                break;
-            }
-
-            type = type.BaseType;
-        }
     }
 
     private async Task SubscribeSelfStreamAsync()
diff --git a/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs b/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs
index 06da275d1..5369af602 100644
--- a/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs
+++ b/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs
@@ -156,23 +156,5 @@ private void InjectDependencies(IAgent agent, IEventPublisher publisher, string
         gab.Logger = logger;
         gab.Services = _services;
         gab.ManifestStore = _services.GetService<IAgentManifestStore>();
-        InjectStateStore(agent);
-    }
-
-    private void InjectStateStore(IAgent agent)
-    {
-        var type = agent.GetType();
-        while (type != null)
-        {
-            if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(GAgentBase<>))
-            {
-                var stateType = type.GetGenericArguments()[0];
-                var storeType = typeof(IStateStore<>).MakeGenericType(stateType);
-                var store = _services.GetService(storeType);
-                if (store != null) type.GetProperty("StateStore")?.SetValue(agent, store);
-                break;
-            }
-            type = type.BaseType;
-        }
     }
 }
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj b/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj
index 27d6ad298..60ffa6891 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj
@@ -15,6 +15,7 @@
     <ProjectReference Include="..\..\Aevatar.Configuration\Aevatar.Configuration.csproj" />
     <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
     <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Providers.InMemory\Aevatar.CQRS.Projection.Providers.InMemory.csproj" />
+    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Providers.Neo4j\Aevatar.CQRS.Projection.Providers.Neo4j.csproj" />
     <ProjectReference Include="..\..\Aevatar.Hosting\Aevatar.Hosting.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
index c5fd4ac77..88316bcfe 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
@@ -3,6 +3,8 @@
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
 using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
+using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
+using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
 using Aevatar.Workflow.Application.DependencyInjection;
 using Aevatar.Workflow.Core;
 using Aevatar.Workflow.Presentation.AGUIAdapter;
@@ -42,6 +44,16 @@ public static IServiceCollection AddWorkflowCapability(
             indexScope: "workflow-execution-reports",
             keySelector: report => report.RootActorId,
             keyFormatter: key => key);
+        services.AddNeo4jReadModelStoreRegistration<WorkflowExecutionReport, string>(
+            optionsFactory: _ =>
+            {
+                var providerOptions = new Neo4jProjectionReadModelStoreOptions();
+                configuration.GetSection("Projection:ReadModel:Providers:Neo4j").Bind(providerOptions);
+                return providerOptions;
+            },
+            scope: "workflow-execution-reports",
+            keySelector: report => report.RootActorId,
+            keyFormatter: key => key);
         services.AddWorkflowExecutionAGUIAdapter();
         services.AddWorkflowExecutionProjectionProjector<WorkflowExecutionAGUIEventProjector>();
         services.AddWorkflowApplication();
@@ -67,6 +79,7 @@ private static void ApplyGlobalReadModelOptions(
         if (!string.IsNullOrWhiteSpace(readModelOptions.Provider))
             options.ReadModelProvider = readModelOptions.Provider.Trim();
 
+        options.ReadModelMode = readModelOptions.Mode;
         options.FailOnUnsupportedCapabilities = readModelOptions.FailOnUnsupportedCapabilities;
         options.ReadModelBindings.Clear();
         foreach (var item in readModelOptions.Bindings)
diff --git a/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj b/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
index be6288b75..2136b2526 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
+++ b/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
@@ -10,6 +10,7 @@
     <ProjectReference Include="..\Aevatar.Workflow.Application.Abstractions\Aevatar.Workflow.Application.Abstractions.csproj" />
     <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
     <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
+    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
     <ProjectReference Include="..\..\Aevatar.Foundation.Projection\Aevatar.Foundation.Projection.csproj" />
     <ProjectReference Include="..\..\Aevatar.Foundation.Abstractions\Aevatar.Foundation.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.Workflow.Core\Aevatar.Workflow.Core.csproj" />
diff --git a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
index c0e1c932c..fa5d4ccc8 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
@@ -56,4 +56,10 @@ public bool EnableRunQueryEndpoints
     /// Optional read-model binding requirements (ReadModelName -> IndexKind).
     /// </summary>
     public Dictionary<string, string> ReadModelBindings { get; }
+
+    /// <summary>
+    /// Read-model runtime mode.
+    /// Workflow keeps CustomReadModel as default; StateOnly is rejected during DI composition.
+    /// </summary>
+    public ProjectionReadModelMode ReadModelMode { get; set; } = ProjectionReadModelMode.CustomReadModel;
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index 91c1b02de..4c1dcb375 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -4,6 +4,7 @@
 using Aevatar.Workflow.Application.Abstractions.Projections;
 using Aevatar.Workflow.Application.Abstractions.Runs;
 using Aevatar.Foundation.Abstractions.Deduplication;
+using Aevatar.CQRS.Projection.Runtime.DependencyInjection;
 using Aevatar.CQRS.Projection.Core.DependencyInjection;
 using Aevatar.CQRS.Projection.Core.Orchestration;
 using Aevatar.CQRS.Projection.Core.Streaming;
@@ -33,6 +34,7 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.TryAddSingleton<IProjectionRuntimeOptions>(sp =>
             sp.GetRequiredService<WorkflowExecutionProjectionOptions>());
         services.TryAddSingleton<IEventDeduplicator, PassthroughEventDeduplicator>();
+        services.AddProjectionReadModelRuntime();
         RegisterWorkflowReadModelStoreSelector(services);
         services.TryAddSingleton<IProjectionClock, SystemProjectionClock>();
         services.TryAddSingleton<IWorkflowExecutionProjectionContextFactory, DefaultWorkflowExecutionProjectionContextFactory>();
@@ -120,70 +122,23 @@ private static void RegisterWorkflowReadModelStoreSelector(IServiceCollection se
         services.Replace(ServiceDescriptor.Singleton<IProjectionReadModelStore<WorkflowExecutionReport, string>>(sp =>
         {
             var options = sp.GetRequiredService<WorkflowExecutionProjectionOptions>();
-            var requirements = ResolveReadModelRequirements(options, typeof(WorkflowExecutionReport));
+            EnsureReadModelModeSupported(options);
+            var bindingResolver = sp.GetRequiredService<IProjectionReadModelBindingResolver>();
+            var storeFactory = sp.GetRequiredService<IProjectionReadModelStoreFactory>();
+            var requirements = bindingResolver.Resolve(options.ReadModelBindings, typeof(WorkflowExecutionReport));
             var selectionOptions = new ProjectionReadModelStoreSelectionOptions
             {
                 RequestedProviderName = NormalizeProviderName(options.ReadModelProvider),
                 FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
             };
 
-            var registration = ProjectionReadModelStoreSelector.Select(
-                sp.GetServices<IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>>(),
+            return storeFactory.Create<WorkflowExecutionReport, string>(
+                sp,
                 selectionOptions,
                 requirements);
-
-            return registration.Create(sp);
         }));
     }
 
-    private static ProjectionReadModelRequirements ResolveReadModelRequirements(
-        WorkflowExecutionProjectionOptions options,
-        Type readModelType)
-    {
-        if (!TryResolveIndexKindBinding(options.ReadModelBindings, readModelType, out var requiredKind))
-            return new ProjectionReadModelRequirements();
-
-        return new ProjectionReadModelRequirements(
-            requiresIndexing: true,
-            requiredIndexKinds: [requiredKind]);
-    }
-
-    private static bool TryResolveIndexKindBinding(
-        IReadOnlyDictionary<string, string> readModelBindings,
-        Type readModelType,
-        out ProjectionReadModelIndexKind requiredKind)
-    {
-        requiredKind = ProjectionReadModelIndexKind.None;
-        if (readModelBindings.Count == 0)
-            return false;
-
-        if (!TryGetBinding(readModelBindings, readModelType.Name, out var configuredIndexKind) &&
-            !TryGetBinding(readModelBindings, readModelType.FullName ?? "", out configuredIndexKind))
-            return false;
-
-        if (!Enum.TryParse<ProjectionReadModelIndexKind>(configuredIndexKind, true, out requiredKind) ||
-            requiredKind == ProjectionReadModelIndexKind.None)
-        {
-            throw new InvalidOperationException(
-                $"Invalid ReadModelBindings value '{configuredIndexKind}' for '{readModelType.FullName}'. " +
-                $"Allowed values: {ProjectionReadModelIndexKind.Document}, {ProjectionReadModelIndexKind.Graph}.");
-        }
-
-        return true;
-    }
-
-    private static bool TryGetBinding(
-        IReadOnlyDictionary<string, string> readModelBindings,
-        string key,
-        out string value)
-    {
-        if (key.Length > 0 && readModelBindings.TryGetValue(key, out value!))
-            return true;
-
-        value = "";
-        return false;
-    }
-
     private static string NormalizeProviderName(string providerName)
     {
         if (string.IsNullOrWhiteSpace(providerName))
@@ -192,6 +147,16 @@ private static string NormalizeProviderName(string providerName)
         return providerName.Trim();
     }
 
+    private static void EnsureReadModelModeSupported(WorkflowExecutionProjectionOptions options)
+    {
+        if (options.ReadModelMode != ProjectionReadModelMode.StateOnly)
+            return;
+
+        throw new InvalidOperationException(
+            "Workflow projection does not support Projection:ReadModel:Mode=StateOnly. " +
+            "Use CustomReadModel or DefaultReadModel.");
+    }
+
     private sealed class PassthroughEventDeduplicator : IEventDeduplicator
     {
         public Task<bool> TryRecordAsync(string eventId)
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj b/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
index fda99aa6e..9145f0f38 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
@@ -11,6 +11,8 @@
   <ItemGroup>
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.StateMirror\Aevatar.CQRS.Projection.StateMirror.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.Foundation.Abstractions\Aevatar.Foundation.Abstractions.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
new file mode 100644
index 000000000..c0adf5814
--- /dev/null
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
@@ -0,0 +1,123 @@
+using Aevatar.CQRS.Projection.Runtime.Runtime;
+using FluentAssertions;
+
+namespace Aevatar.CQRS.Projection.Core.Tests;
+
+public class ProjectionReadModelRuntimeTests
+{
+    [Fact]
+    public void BindingResolver_ShouldResolveRequirement_ByReadModelName()
+    {
+        var resolver = new ProjectionReadModelBindingResolver();
+        var bindings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
+        {
+            [nameof(TestReadModel)] = ProjectionReadModelIndexKind.Graph.ToString(),
+        };
+
+        var requirements = resolver.Resolve(bindings, typeof(TestReadModel));
+
+        requirements.RequiresIndexing.Should().BeTrue();
+        requirements.RequiredIndexKinds.Should().ContainSingle()
+            .Which.Should().Be(ProjectionReadModelIndexKind.Graph);
+    }
+
+    [Fact]
+    public void ProviderSelector_WhenFailFastDisabled_ShouldReturnRegistration()
+    {
+        var selector = new ProjectionReadModelProviderSelector(
+            new ProjectionReadModelCapabilityValidatorService());
+        var registrations = new List<IProjectionReadModelStoreRegistration<TestReadModel, string>>
+        {
+            CreateRegistration(
+                "InMemory",
+                supportsIndexing: false,
+                indexKinds: []),
+        };
+
+        var selected = selector.Select(
+            registrations,
+            new ProjectionReadModelStoreSelectionOptions
+            {
+                RequestedProviderName = "InMemory",
+                FailOnUnsupportedCapabilities = false,
+            },
+            new ProjectionReadModelRequirements(
+                requiresIndexing: true,
+                requiredIndexKinds: [ProjectionReadModelIndexKind.Document]));
+
+        selected.ProviderName.Should().Be("InMemory");
+    }
+
+    [Fact]
+    public void ProviderSelector_WhenMultipleProvidersWithoutRequested_ShouldThrowStructuredException()
+    {
+        var selector = new ProjectionReadModelProviderSelector(
+            new ProjectionReadModelCapabilityValidatorService());
+        var registrations = new List<IProjectionReadModelStoreRegistration<TestReadModel, string>>
+        {
+            CreateRegistration("InMemory", supportsIndexing: false, indexKinds: []),
+            CreateRegistration("Elasticsearch", supportsIndexing: true, indexKinds: [ProjectionReadModelIndexKind.Document]),
+        };
+
+        Action act = () => selector.Select(
+            registrations,
+            new ProjectionReadModelStoreSelectionOptions(),
+            new ProjectionReadModelRequirements());
+
+        act.Should().Throw<ProjectionProviderSelectionException>()
+            .Where(ex => ex.ReadModelType == typeof(TestReadModel));
+    }
+
+    private static IProjectionReadModelStoreRegistration<TestReadModel, string> CreateRegistration(
+        string providerName,
+        bool supportsIndexing,
+        IReadOnlyList<ProjectionReadModelIndexKind> indexKinds)
+    {
+        var capabilities = new ProjectionReadModelProviderCapabilities(
+            providerName,
+            supportsIndexing,
+            indexKinds);
+
+        return new DelegateProjectionReadModelStoreRegistration<TestReadModel, string>(
+            providerName,
+            capabilities,
+            _ => new NoopStore());
+    }
+
+    public sealed class TestReadModel
+    {
+        public string Id { get; set; } = "";
+    }
+
+    private sealed class NoopStore : IProjectionReadModelStore<TestReadModel, string>
+    {
+        public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default)
+        {
+            _ = readModel;
+            _ = ct;
+            return Task.CompletedTask;
+        }
+
+        public Task MutateAsync(string key, Action<TestReadModel> mutate, CancellationToken ct = default)
+        {
+            _ = key;
+            _ = mutate;
+            _ = ct;
+            return Task.CompletedTask;
+        }
+
+        public Task<TestReadModel?> GetAsync(string key, CancellationToken ct = default)
+        {
+            _ = key;
+            _ = ct;
+            return Task.FromResult<TestReadModel?>(null);
+        }
+
+        public Task<IReadOnlyList<TestReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
+        {
+            _ = take;
+            _ = ct;
+            return Task.FromResult<IReadOnlyList<TestReadModel>>([]);
+        }
+    }
+}
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/StateMirrorProjectionTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/StateMirrorProjectionTests.cs
new file mode 100644
index 000000000..f67f4b323
--- /dev/null
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/StateMirrorProjectionTests.cs
@@ -0,0 +1,80 @@
+using Aevatar.CQRS.Projection.StateMirror.Abstractions;
+using Aevatar.CQRS.Projection.StateMirror.DependencyInjection;
+using FluentAssertions;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.CQRS.Projection.Core.Tests;
+
+public class StateMirrorProjectionTests
+{
+    [Fact]
+    public void AddJsonStateMirrorProjection_ShouldProjectStateByDefault()
+    {
+        var services = new ServiceCollection();
+        services.AddJsonStateMirrorProjection<SampleState, SampleReadModel>();
+
+        using var provider = services.BuildServiceProvider();
+        var projection = provider.GetRequiredService<IStateMirrorProjection<SampleState, SampleReadModel>>();
+        var projected = projection.Project(new SampleState
+        {
+            ActorId = "actor-1",
+            Count = 3,
+            InternalNote = "note",
+        });
+
+        projected.ActorId.Should().Be("actor-1");
+        projected.Count.Should().Be(3);
+        projected.InternalNote.Should().Be("note");
+    }
+
+    [Fact]
+    public void AddJsonStateMirrorProjection_WithRenameAndIgnore_ShouldApplyOptions()
+    {
+        var services = new ServiceCollection();
+        services.AddJsonStateMirrorProjection<SampleState, RenamedReadModel>(options =>
+        {
+            options.IgnoredFields.Add(nameof(SampleState.InternalNote));
+            options.RenamedFields[nameof(SampleState.ActorId)] = nameof(RenamedReadModel.Id);
+        });
+
+        using var provider = services.BuildServiceProvider();
+        var projection = provider.GetRequiredService<IStateMirrorProjection<SampleState, RenamedReadModel>>();
+        var projected = projection.Project(new SampleState
+        {
+            ActorId = "actor-2",
+            Count = 9,
+            InternalNote = "secret",
+        });
+
+        projected.Id.Should().Be("actor-2");
+        projected.Count.Should().Be(9);
+        projected.InternalNote.Should().BeNull();
+    }
+
+    public sealed class SampleState
+    {
+        public string ActorId { get; set; } = "";
+
+        public int Count { get; set; }
+
+        public string InternalNote { get; set; } = "";
+    }
+
+    public sealed class SampleReadModel
+    {
+        public string ActorId { get; set; } = "";
+
+        public int Count { get; set; }
+
+        public string InternalNote { get; set; } = "";
+    }
+
+    public sealed class RenamedReadModel
+    {
+        public string Id { get; set; } = "";
+
+        public int Count { get; set; }
+
+        public string? InternalNote { get; set; }
+    }
+}
diff --git a/test/Aevatar.Foundation.Core.Tests/Bdd/AgentLifecycleBddTests.cs b/test/Aevatar.Foundation.Core.Tests/Bdd/AgentLifecycleBddTests.cs
index d56934c77..ae43c90db 100644
--- a/test/Aevatar.Foundation.Core.Tests/Bdd/AgentLifecycleBddTests.cs
+++ b/test/Aevatar.Foundation.Core.Tests/Bdd/AgentLifecycleBddTests.cs
@@ -1,10 +1,15 @@
 // ─────────────────────────────────────────────────────────────
-// BDD: Agent lifecycle behavior
-// Feature: Agent activation, deactivation, state loading/saving
+// BDD: Agent lifecycle behavior (mandatory Event Sourcing)
+// Feature: Agent activation/deactivation with replay-first recovery
 // ─────────────────────────────────────────────────────────────
 
-using Shouldly;
+using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Abstractions.Helpers;
+using Aevatar.Foundation.Core.EventSourcing;
+using Google.Protobuf;
+using Google.Protobuf.WellKnownTypes;
 using Microsoft.Extensions.DependencyInjection;
+using Shouldly;
 
 namespace Aevatar.Foundation.Core.Tests.Bdd;
 
@@ -12,11 +17,16 @@ namespace Aevatar.Foundation.Core.Tests.Bdd;
 [Trait("Feature", "AgentLifecycle")]
 public class AgentLifecycleBddTests
 {
-    [Fact(DisplayName = "Given a new Agent, when activated, State should be initialized to default values")]
-    public async Task Given_NewAgent_When_Activated_Then_StateIsDefault()
+    [Fact(DisplayName = "Given a new Agent with EventSourcing, when activated, State should be initialized to default values")]
+    public async Task Given_NewAgentWithEventSourcing_When_Activated_Then_StateIsDefault()
     {
         // Given
-        var agent = new CounterAgent();
+        var store = new InMemoryEventStore();
+        var behavior = new CounterReplayBehavior(store, "lifecycle-1");
+        var agent = new CounterAgent
+        {
+            EventSourcing = behavior,
+        };
         agent.SetId("lifecycle-1");
         agent.Services = new ServiceCollection().BuildServiceProvider();
 
@@ -29,16 +39,30 @@ public async Task Given_NewAgent_When_Activated_Then_StateIsDefault()
         agent.State.Name.ShouldBeEmpty();
     }
 
-    [Fact(DisplayName = "Given an Agent configured with StateStore, when activated, should load existing state from Store")]
-    public async Task Given_AgentWithStore_When_Activated_Then_StateLoadedFromStore()
+    [Fact(DisplayName = "Given an Agent with EventStore history, when activated, should recover state by replay")]
+    public async Task Given_AgentWithHistory_When_Activated_Then_StateRecoveredFromReplay()
     {
         // Given
-        var store = new InMemoryStateStore<CounterState>();
-        await store.SaveAsync("lifecycle-2", new CounterState { Count = 42, Name = "saved" });
-
-        var agent = new CounterAgent();
+        var store = new InMemoryEventStore();
+        await store.AppendAsync(
+            "lifecycle-2",
+            [new StateEvent
+            {
+                EventId = Guid.NewGuid().ToString("N"),
+                Timestamp = TimestampHelper.Now(),
+                Version = 1,
+                EventType = typeof(IncrementEvent).FullName ?? nameof(IncrementEvent),
+                EventData = Any.Pack(new IncrementEvent { Amount = 42 }),
+                AgentId = "lifecycle-2",
+            }],
+            expectedVersion: 0);
+
+        var behavior = new CounterReplayBehavior(store, "lifecycle-2");
+        var agent = new CounterAgent
+        {
+            EventSourcing = behavior,
+        };
         agent.SetId("lifecycle-2");
-        agent.StateStore = store;
         agent.Services = new ServiceCollection().BuildServiceProvider();
 
         // When
@@ -46,46 +70,65 @@ public async Task Given_AgentWithStore_When_Activated_Then_StateLoadedFromStore(
 
         // Then
         agent.State.Count.ShouldBe(42);
-        agent.State.Name.ShouldBe("saved");
     }
 
-    [Fact(DisplayName = "Given an active Agent, when deactivated, State should be saved to Store")]
-    public async Task Given_ActiveAgent_When_Deactivated_Then_StateSavedToStore()
+    [Fact(DisplayName = "Given an active Agent, when deactivated, pending events should be committed")]
+    public async Task Given_ActiveAgent_When_Deactivated_Then_PendingEventsCommitted()
     {
         // Given
-        var store = new InMemoryStateStore<CounterState>();
-        var agent = new CounterAgent();
+        var store = new InMemoryEventStore();
+        var behavior = new CounterReplayBehavior(store, "lifecycle-3");
+        var agent = new CounterAgent
+        {
+            EventSourcing = behavior,
+        };
         agent.SetId("lifecycle-3");
-        agent.StateStore = store;
         agent.Services = new ServiceCollection().BuildServiceProvider();
-
         await agent.ActivateAsync();
-        // Modify state through event
-        var envelope = TestHelper.Envelope(new IncrementEvent { Amount = 7 });
-        await agent.HandleEventAsync(envelope);
+        behavior.RaiseEvent(new IncrementEvent { Amount = 7 });
 
         // When
         await agent.DeactivateAsync();
 
         // Then
-        var saved = await store.LoadAsync("lifecycle-3");
-        saved.ShouldNotBeNull();
-        saved!.Count.ShouldBe(7);
+        var events = await store.GetEventsAsync("lifecycle-3");
+        events.Count.ShouldBe(1);
+        events[0].EventType.ShouldContain(nameof(IncrementEvent));
     }
 
-    [Fact(DisplayName = "Given an Agent without StateStore, when completing full lifecycle, should not throw exception")]
-    public async Task Given_AgentWithoutStore_When_FullLifecycle_Then_NoException()
+    [Fact(DisplayName = "Given an Agent without EventSourcing, when activated, should fail fast")]
+    public async Task Given_AgentWithoutEventSourcing_When_Activated_Then_FailFast()
     {
         // Given
-        var agent = new CounterAgent();
+        var agent = new CounterAgent
+        {
+            EventSourcing = null,
+        };
         agent.SetId("lifecycle-4");
         agent.Services = new ServiceCollection().BuildServiceProvider();
 
         // When / Then
-        await agent.ActivateAsync();
-        await agent.HandleEventAsync(TestHelper.Envelope(new IncrementEvent { Amount = 1 }));
-        await agent.DeactivateAsync();
+        var act = () => agent.ActivateAsync();
+        await act.ShouldThrowAsync<InvalidOperationException>();
+    }
 
-        agent.State.Count.ShouldBe(1);
+    private sealed class CounterReplayBehavior : EventSourcingBehavior<CounterState>
+    {
+        public CounterReplayBehavior(IEventStore eventStore, string agentId)
+            : base(eventStore, agentId) { }
+
+        public override CounterState TransitionState(CounterState current, IMessage evt)
+        {
+            if (evt is Any any && any.TryUnpack<IncrementEvent>(out var inc))
+            {
+                return new CounterState
+                {
+                    Count = current.Count + inc.Amount,
+                    Name = current.Name,
+                };
+            }
+
+            return current;
+        }
     }
 }
diff --git a/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs b/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
index c619d5ad6..d08dcba7d 100644
--- a/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
+++ b/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
@@ -1,6 +1,7 @@
 // ─── Event Sourcing (IEventSourcingBehavior / EventSourcingBehavior / SnapshotStrategy) tests ───
 
 using Aevatar.Foundation.Abstractions.Attributes;
+using Aevatar.Foundation.Abstractions.Helpers;
 using Aevatar.Foundation.Core.EventSourcing;
 using Aevatar.Foundation.Abstractions.Hooks;
 using Aevatar.Foundation.Abstractions.Persistence;
@@ -37,6 +38,17 @@ public async Task ConfirmEventsAsync_WhenNoPending_DoesNothing()
         events.Count.ShouldBe(0);
     }
 
+    [Fact]
+    public async Task ConfirmEventsAsync_WhenStateSnapshotEventRaised_ShouldFailFast()
+    {
+        var (_, behavior) = Create();
+        behavior.RaiseEvent(new CounterState { Count = 1, Name = "snapshot" });
+
+        Func<Task> act = async () => await behavior.ConfirmEventsAsync();
+
+        await act.ShouldThrowAsync<InvalidOperationException>();
+    }
+
     [Fact]
     public async Task RaiseEvent_And_ConfirmEventsAsync_PersistsAndUpdatesVersion()
     {
@@ -105,6 +117,84 @@ public async Task MultipleConfirmEventsAsync_AppendsInOrder()
         state!.Count.ShouldBe(3);
     }
 
+    [Fact]
+    public async Task PersistSnapshotAsync_WhenSnapshotStrategyMatches_ShouldPersistSnapshot()
+    {
+        var store = new InMemoryEventStore();
+        var snapshotStore = new InMemoryEventSourcingSnapshotStore<CounterState>();
+        var behavior = new CounterEventSourcingBehavior(
+            store,
+            "agent-snapshot",
+            snapshotStore: snapshotStore,
+            snapshotStrategy: new IntervalSnapshotStrategy(1));
+
+        behavior.RaiseEvent(new IncrementEvent { Amount = 9 });
+        await behavior.ConfirmEventsAsync();
+        await behavior.PersistSnapshotAsync(new CounterState { Count = 9, Name = "snapshot" });
+
+        var snapshot = await snapshotStore.LoadAsync("agent-snapshot");
+        snapshot.ShouldNotBeNull();
+        snapshot!.Version.ShouldBe(1);
+        snapshot.State.Count.ShouldBe(9);
+    }
+
+    [Fact]
+    public async Task PersistSnapshotAsync_WhenSnapshotSaveFails_ShouldNotThrowAndShouldKeepCommittedEvents()
+    {
+        var store = new InMemoryEventStore();
+        var snapshotStore = new ThrowingSnapshotStore<CounterState>();
+        var behavior = new CounterEventSourcingBehavior(
+            store,
+            "agent-snapshot-fail",
+            snapshotStore: snapshotStore,
+            snapshotStrategy: new IntervalSnapshotStrategy(1));
+
+        behavior.RaiseEvent(new IncrementEvent { Amount = 3 });
+        await behavior.ConfirmEventsAsync();
+
+        await behavior.PersistSnapshotAsync(new CounterState { Count = 3, Name = "snapshot-fail" });
+
+        behavior.CurrentVersion.ShouldBe(1);
+        var events = await store.GetEventsAsync("agent-snapshot-fail");
+        events.Count.ShouldBe(1);
+    }
+
+    [Fact]
+    public async Task ReplayAsync_WhenSnapshotExists_ShouldReplayOnlyDeltaEvents()
+    {
+        var store = new InMemoryEventStore();
+        var snapshotStore = new InMemoryEventSourcingSnapshotStore<CounterState>();
+        await snapshotStore.SaveAsync(
+            "agent-replay-with-snapshot",
+            new EventSourcingSnapshot<CounterState>(
+                new CounterState { Count = 10, Name = "snap" },
+                2));
+
+        await store.AppendAsync(
+            "agent-replay-with-snapshot",
+            [new StateEvent
+            {
+                EventId = "e-3",
+                Timestamp = TimestampHelper.Now(),
+                Version = 3,
+                EventType = typeof(IncrementEvent).FullName ?? nameof(IncrementEvent),
+                EventData = Any.Pack(new IncrementEvent { Amount = 4 }),
+                AgentId = "agent-replay-with-snapshot",
+            }],
+            expectedVersion: 0);
+
+        var behavior = new CounterEventSourcingBehavior(
+            store,
+            "agent-replay-with-snapshot",
+            snapshotStore: snapshotStore);
+
+        var replayed = await behavior.ReplayAsync("agent-replay-with-snapshot");
+
+        replayed.ShouldNotBeNull();
+        replayed!.Count.ShouldBe(14);
+        behavior.CurrentVersion.ShouldBe(3);
+    }
+
     [Fact]
     public async Task DefaultTransitionState_ReturnsCurrentUnchanged()
     {
@@ -121,8 +211,12 @@ public async Task DefaultTransitionState_ReturnsCurrentUnchanged()
     /// <summary>Test behavior that applies IncrementEvent/DecrementEvent to CounterState.</summary>
     internal sealed class CounterEventSourcingBehavior : EventSourcingBehavior<CounterState>
     {
-        public CounterEventSourcingBehavior(IEventStore eventStore, string agentId)
-            : base(eventStore, agentId) { }
+        public CounterEventSourcingBehavior(
+            IEventStore eventStore,
+            string agentId,
+            IEventSourcingSnapshotStore<CounterState>? snapshotStore = null,
+            ISnapshotStrategy? snapshotStrategy = null)
+            : base(eventStore, agentId, snapshotStore, snapshotStrategy) { }
 
         public override CounterState TransitionState(CounterState current, IMessage evt)
         {
@@ -131,65 +225,71 @@ public override CounterState TransitionState(CounterState current, IMessage evt)
                 return new CounterState { Count = current.Count + inc.Amount, Name = current.Name };
             if (any.TryUnpack<DecrementEvent>(out var dec))
                 return new CounterState { Count = current.Count - dec.Amount, Name = current.Name };
-            return current;
+            return base.TransitionState(current, evt);
         }
     }
-}
 
-/// <summary>Event Sourcing agent: state restored from event replay on activate, handlers RaiseEvent + ConfirmEventsAsync.</summary>
-public class EventSourcingCounterAgent : GAgentBase<CounterState>
-{
-    /// <summary>Injected by test or runtime; when set, activate replays from store and handlers persist via ES.</summary>
-    public IEventSourcingBehavior<CounterState>? EventSourcing { get; set; }
-
-    protected override async Task OnActivateAsync(CancellationToken ct)
+    private sealed class InMemoryEventSourcingSnapshotStore<TState> : IEventSourcingSnapshotStore<TState>
+        where TState : class
     {
-        if (EventSourcing != null)
+        private readonly Dictionary<string, EventSourcingSnapshot<TState>> _snapshots = new(StringComparer.Ordinal);
+
+        public Task<EventSourcingSnapshot<TState>?> LoadAsync(string agentId, CancellationToken ct = default)
         {
-            var replayed = await EventSourcing.ReplayAsync(Id, ct);
-            if (replayed != null)
-                State = replayed;
+            _ = ct;
+            _snapshots.TryGetValue(agentId, out var snapshot);
+            return Task.FromResult(snapshot);
         }
-    }
 
-    protected override async Task OnDeactivateAsync(CancellationToken ct)
-    {
-        if (EventSourcing != null)
-            await EventSourcing.ConfirmEventsAsync(ct);
+        public Task SaveAsync(string agentId, EventSourcingSnapshot<TState> snapshot, CancellationToken ct = default)
+        {
+            _ = ct;
+            _snapshots[agentId] = snapshot;
+            return Task.CompletedTask;
+        }
     }
 
-    [EventHandler]
-    public async Task HandleIncrement(IncrementEvent evt)
+    private sealed class ThrowingSnapshotStore<TState> : IEventSourcingSnapshotStore<TState>
+        where TState : class
     {
-        if (EventSourcing != null)
+        public Task<EventSourcingSnapshot<TState>?> LoadAsync(string agentId, CancellationToken ct = default)
         {
-            EventSourcing.RaiseEvent(evt);
-            await EventSourcing.ConfirmEventsAsync();
-            var replayed = await EventSourcing.ReplayAsync(Id);
-            if (replayed != null)
-                State = replayed;
+            _ = agentId;
+            _ = ct;
+            return Task.FromResult<EventSourcingSnapshot<TState>?>(null);
         }
-        else
+
+        public Task SaveAsync(string agentId, EventSourcingSnapshot<TState> snapshot, CancellationToken ct = default)
         {
-            State = new CounterState { Count = State.Count + evt.Amount, Name = State.Name };
+            _ = agentId;
+            _ = snapshot;
+            _ = ct;
+            throw new InvalidOperationException("snapshot-store-failure");
         }
     }
+}
+
+/// <summary>Event Sourcing agent: state restored from event replay on activate, handlers RaiseEvent + ConfirmEventsAsync.</summary>
+public class EventSourcingCounterAgent : GAgentBase<CounterState>
+{
+    [EventHandler]
+    public async Task HandleIncrement(IncrementEvent evt)
+    {
+        EventSourcing!.RaiseEvent(evt);
+        await EventSourcing.ConfirmEventsAsync();
+        var replayed = await EventSourcing.ReplayAsync(Id);
+        if (replayed != null)
+            State = replayed;
+    }
 
     [EventHandler(Priority = 10)]
     public async Task HandleDecrement(DecrementEvent evt)
     {
-        if (EventSourcing != null)
-        {
-            EventSourcing.RaiseEvent(evt);
-            await EventSourcing.ConfirmEventsAsync();
-            var replayed = await EventSourcing.ReplayAsync(Id);
-            if (replayed != null)
-                State = replayed;
-        }
-        else
-        {
-            State = new CounterState { Count = State.Count - evt.Amount, Name = State.Name };
-        }
+        EventSourcing!.RaiseEvent(evt);
+        await EventSourcing.ConfirmEventsAsync();
+        var replayed = await EventSourcing.ReplayAsync(Id);
+        if (replayed != null)
+            State = replayed;
     }
 }
 
@@ -277,17 +377,13 @@ public async Task EventSourcingAgent_DeactivateThenReactivate_RestoresFromReplay
     }
 
     [Fact]
-    public async Task EventSourcingAgent_WithoutBehavior_WorksInMemoryOnly()
+    public async Task EventSourcingAgent_WithoutBehavior_ShouldFailFastOnActivate()
     {
         var agent = new EventSourcingCounterAgent { EventSourcing = null };
         agent.SetId("agent-null-es");
         WireAgent(agent);
-        await agent.ActivateAsync();
-
-        await agent.HandleEventAsync(TestHelper.Envelope(new IncrementEvent { Amount = 7 }));
-        agent.State.Count.ShouldBe(7);
-        await agent.HandleEventAsync(TestHelper.Envelope(new DecrementEvent { Amount = 2 }));
-        agent.State.Count.ShouldBe(5);
+        var act = () => agent.ActivateAsync();
+        await act.ShouldThrowAsync<InvalidOperationException>();
     }
 }
 
diff --git a/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansDistributedCoverageTests.cs b/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansDistributedCoverageTests.cs
index 9e6e34c28..b162d3e68 100644
--- a/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansDistributedCoverageTests.cs
+++ b/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansDistributedCoverageTests.cs
@@ -342,7 +342,7 @@ public async Task RuntimeActorGrain_ShouldManageStateWithoutActivationContext()
     {
         var state = DispatchProxy.Create<IPersistentState<RuntimeActorGrainState>, RuntimeActorPersistentStateProxy>();
         var stateProxy = (RuntimeActorPersistentStateProxy)(object)state;
-        var grain = new RuntimeActorGrain(state, new AsyncLocalRuntimeActorStateBindingAccessor());
+        var grain = new RuntimeActorGrain(state);
 
         (await grain.IsInitializedAsync()).Should().BeFalse();
         stateProxy.State.AgentTypeName = "Known.Type";
@@ -381,7 +381,7 @@ public async Task RuntimeActorGrain_ShouldManageStateWithoutActivationContext()
     public async Task RuntimeActorGrain_ShouldCoverExceptionalBranches()
     {
         var state = DispatchProxy.Create<IPersistentState<RuntimeActorGrainState>, RuntimeActorPersistentStateProxy>();
-        var grain = new RuntimeActorGrain(state, new AsyncLocalRuntimeActorStateBindingAccessor());
+        var grain = new RuntimeActorGrain(state);
 
         var envelopeAct = () => grain.HandleEnvelopeAsync(new byte[] { 1, 2, 3 });
         await envelopeAct.Should().ThrowAsync<InvalidOperationException>()
diff --git a/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansRuntimeActorStateStoreIntegrationTests.cs b/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansRuntimeActorStateStoreIntegrationTests.cs
index 07950e985..b9007474f 100644
--- a/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansRuntimeActorStateStoreIntegrationTests.cs
+++ b/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansRuntimeActorStateStoreIntegrationTests.cs
@@ -16,7 +16,7 @@ namespace Aevatar.Foundation.Runtime.Hosting.Tests;
 public sealed class OrleansRuntimeActorStateStoreIntegrationTests
 {
     [Fact]
-    public async Task RuntimeActorGrain_ShouldRestoreStatefulAgentSnapshot_WhenReinitialized()
+    public async Task RuntimeActorGrain_ShouldNotRestoreTransientStateWithoutEvents_WhenReinitialized()
     {
         var actorId = $"actor-{Guid.NewGuid():N}";
         var siloPort = ReserveTcpPort();
@@ -35,7 +35,7 @@ public async Task RuntimeActorGrain_ShouldRestoreStatefulAgentSnapshot_WhenReini
             await grain.DeactivateAsync();
 
             (await grain.InitializeAgentAsync(agentType)).Should().BeTrue();
-            (await grain.GetDescriptionAsync()).Should().Be("activation-count:2");
+            (await grain.GetDescriptionAsync()).Should().Be("activation-count:1");
         }
         finally
         {
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index eb3d69f1c..5a8e11dd4 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -4,6 +4,9 @@
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
 using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
+using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
+using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
+using Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
 using Aevatar.AI.Projection.Reducers;
 using Aevatar.Workflow.Extensions.AIProjection;
 using Aevatar.Workflow.Projection;
@@ -53,6 +56,24 @@ public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchConfigured_Shoul
         metadata.ProviderCapabilities.IndexKinds.Should().Contain(ProjectionReadModelIndexKind.Document);
     }
 
+    [Fact]
+    public async Task AddWorkflowExecutionProjectionCQRS_WhenNeo4jConfigured_ShouldResolveNeo4jStore()
+    {
+        var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
+        RegisterNeo4jProvider(services);
+        services.AddWorkflowExecutionProjectionCQRS(options =>
+            options.ReadModelProvider = ProjectionReadModelProviderNames.Neo4j);
+
+        await using var provider = services.BuildServiceProvider();
+        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+
+        store.Should().BeOfType<Neo4jProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        var metadata = store.Should().BeAssignableTo<IProjectionReadModelStoreProviderMetadata>().Subject;
+        metadata.ProviderCapabilities.SupportsIndexing.Should().BeTrue();
+        metadata.ProviderCapabilities.IndexKinds.Should().Contain(ProjectionReadModelIndexKind.Graph);
+    }
+
     [Fact]
     public void AddWorkflowExecutionProjectionCQRS_WhenProviderUnsupported_ShouldThrow()
     {
@@ -105,6 +126,24 @@ public void AddWorkflowExecutionProjectionCQRS_WhenFailFastDisabled_ShouldAllowU
         act.Should().NotThrow();
     }
 
+    [Fact]
+    public void AddWorkflowExecutionProjectionCQRS_WhenStateOnlyModeConfigured_ShouldThrow()
+    {
+        var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
+        services.AddWorkflowExecutionProjectionCQRS(options =>
+        {
+            options.ReadModelMode = ProjectionReadModelMode.StateOnly;
+            options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory;
+        });
+
+        using var provider = services.BuildServiceProvider();
+        Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*does not support*StateOnly*");
+    }
+
     [Fact]
     public async Task AddWorkflowExecutionProjectionReducer_ShouldSupportExternalReducer()
     {
@@ -323,6 +362,21 @@ private static void RegisterInMemoryProvider(IServiceCollection services)
             listSortSelector: report => report.StartedAt);
     }
 
+    private static void RegisterNeo4jProvider(IServiceCollection services)
+    {
+        services.AddNeo4jReadModelStoreRegistration<WorkflowExecutionReport, string>(
+            optionsFactory: _ => new Neo4jProjectionReadModelStoreOptions
+            {
+                Uri = "bolt://localhost:7687",
+                Username = "neo4j",
+                Password = "test",
+                AutoCreateConstraints = false,
+            },
+            scope: "workflow-execution-reports",
+            keySelector: report => report.RootActorId,
+            keyFormatter: key => key);
+    }
+
     public sealed class CustomChatRequestReducer : WorkflowExecutionEventReducerBase<ChatRequestEvent>
     {
         protected override bool Reduce(
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
index e9c6f5e97..9ad65b192 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
@@ -549,6 +549,7 @@ private static WorkflowExecutionProjectionService CreateService(
         // Use a dedicated local actor runtime for projection coordinator actors.
         var runtimeServices = new ServiceCollection();
         runtimeServices.AddSingleton<IAgentManifestStore, InMemoryManifestStore>();
+        runtimeServices.AddSingleton<IEventStore, InMemoryEventStore>();
         var runtimeProvider = runtimeServices.BuildServiceProvider();
         var runtime = new LocalActorRuntime(
             streams,
diff --git a/tools/ci/architecture_guards.sh b/tools/ci/architecture_guards.sh
index bdc0fa7a5..ea2d44abf 100755
--- a/tools/ci/architecture_guards.sh
+++ b/tools/ci/architecture_guards.sh
@@ -52,6 +52,54 @@ if rg -n "GetAwaiter\(\)\.GetResult\(\)" src; then
   exit 1
 fi
 
+if [ -f "src/Aevatar.Foundation.Core/EventSourcing/DefaultAutoPersistedStateEventFactory.cs" ]; then
+  echo "DefaultAutoPersistedStateEventFactory is forbidden. EventStore must persist domain events, not snapshot-state events."
+  exit 1
+fi
+
+if [ -f "src/Aevatar.Foundation.Core/EventSourcing/IAutoPersistedStateEventFactory.cs" ]; then
+  echo "IAutoPersistedStateEventFactory is forbidden. Use IDomainEventDeriver<TState> for semantic event derivation."
+  exit 1
+fi
+
+if [ -f "src/Aevatar.Foundation.Core/EventSourcing/EventSourcingAutoPersistenceOptions.cs" ]; then
+  echo "EventSourcingAutoPersistenceOptions is forbidden. Stateful actors must emit explicit domain events."
+  exit 1
+fi
+
+if [ -f "src/Aevatar.Foundation.Core/EventSourcing/IDomainEventDeriver.cs" ]; then
+  echo "IDomainEventDeriver is forbidden on runtime path. Domain events must be produced explicitly by command handlers."
+  exit 1
+fi
+
+if rg -n "ConfirmStateAsync\(" src/Aevatar.Foundation.Core/EventSourcing; then
+  echo "ConfirmStateAsync is forbidden."
+  exit 1
+fi
+
+if rg -n "ConfirmDerivedEventsAsync\(" src/Aevatar.Foundation.Core/EventSourcing; then
+  echo "ConfirmDerivedEventsAsync is forbidden. Domain events must be raised explicitly via RaiseEvent + ConfirmEventsAsync."
+  exit 1
+fi
+
+if rg -n "TryUnpack<TState>|Unpack<TState>" src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs; then
+  echo "EventSourcingBehavior must not unpack TState snapshots from persisted events."
+  exit 1
+fi
+
+if rg -n "StateStore\.LoadAsync|StateStore\.SaveAsync" src/Aevatar.Foundation.Core/GAgentBase.TState.cs; then
+  echo "GAgentBase<TState> must not use StateStore as the fact source. Recovery must come from EventStore replay."
+  exit 1
+fi
+
+if rg -n "IEventSourcingBehavior<>\\)\\.MakeGenericType|EventSourcingBehavior<>\\)\\.MakeGenericType|GetProperty\\(\"EventSourcing\"\\)|GetProperty\\(\"StateStore\"\\)" \
+  src/Aevatar.Foundation.Runtime \
+  src/Aevatar.Foundation.Runtime.Implementations.Orleans
+then
+  echo "Runtime must not use reflection-based stateful ES binding. Use static generic construction in GAgentBase<TState>."
+  exit 1
+fi
+
 if rg -n "TypeUrl\.Contains|typeUrl\.Contains\(" src demos; then
   echo "Found string-based event type matching."
   exit 1

From fb9a1133f5e3d7e22440e7c6847826fc8e9e94ff Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Mon, 23 Feb 2026 23:22:13 +0800
Subject: [PATCH 04/46] Enhance Event Sourcing with State Event Appliers and
 Transition Matchers

- Introduced `IStateEventApplier` interface and `StateEventApplierBase` class to facilitate modular state transitions in event sourcing.
- Added `StateTransitionMatcher` for deterministic event-to-state transitions, improving clarity and maintainability of state management.
- Updated `GAgentBase` to utilize new appliers for event handling, enhancing the flexibility of state transitions.
- Refactored existing event handling logic in `ProjectionOwnershipCoordinatorGAgent` and `WorkflowGAgent` to leverage the new state transition mechanisms.
- Enhanced documentation to reflect the new abstractions and usage patterns for developers.
---
 docs/EVENT_SOURCING.md                        |  21 +--
 ...ng-elasticsearch-readmodel-requirements.md |  14 +-
 .../ProjectionOwnershipCoordinatorGAgent.cs   |  55 +++++--
 .../EventSourcing/IStateEventApplier.cs       |  21 +++
 .../EventSourcing/StateEventApplierBase.cs    |  31 ++++
 .../EventSourcing/StateTransitionMatcher.cs   |  72 +++++++++
 .../GAgentBase.TState.cs                      |  99 +++++++++++-
 .../Aevatar.Workflow.Core/WorkflowGAgent.cs   | 146 +++++++++++-------
 .../ProjectionOwnershipAndSessionHubTests.cs  |  83 +++++++++-
 .../Bdd/AgentLifecycleBddTests.cs             |  18 +--
 .../EventSourcingTests.cs                     |  88 ++++++++++-
 .../WorkflowGAgentCoverageTests.cs            |  49 +++---
 12 files changed, 574 insertions(+), 123 deletions(-)
 create mode 100644 src/Aevatar.Foundation.Core/EventSourcing/IStateEventApplier.cs
 create mode 100644 src/Aevatar.Foundation.Core/EventSourcing/StateEventApplierBase.cs
 create mode 100644 src/Aevatar.Foundation.Core/EventSourcing/StateTransitionMatcher.cs

diff --git a/docs/EVENT_SOURCING.md b/docs/EVENT_SOURCING.md
index 1ed5c725e..672d55700 100644
--- a/docs/EVENT_SOURCING.md
+++ b/docs/EVENT_SOURCING.md
@@ -15,6 +15,9 @@
 ## 3. 当前代码事实（权威路径）
 - ES 行为契约：`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs`
 - ES 默认实现：`src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`
+- 状态事件 applier 抽象：`src/Aevatar.Foundation.Core/EventSourcing/IStateEventApplier.cs`
+- Typed applier 基类：`src/Aevatar.Foundation.Core/EventSourcing/StateEventApplierBase.cs`
+- 状态事件匹配器：`src/Aevatar.Foundation.Core/EventSourcing/StateTransitionMatcher.cs`
 - 有状态生命周期：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs`
 - Local Runtime 注入边界：`src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs`
 - Orleans Runtime 注入边界：`src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs`
@@ -25,7 +28,7 @@
 - `GAgentBase<TState>.ActivateAsync` 先调用 `base.ActivateAsync` 恢复模块。
 - 然后调用 `EnsureEventSourcingConfigured()`：
   - 若已设置 `EventSourcing`，直接使用。
-  - 若未设置，则通过 `Services.GetService(typeof(IEventStore))` 解析 `IEventStore`，并静态构造 `EventSourcingBehavior<TState>(eventStore, actorId)`。
+  - 若未设置，则通过 `Services.GetService(typeof(IEventStore))` 解析 `IEventStore`，并静态构造 `AgentBackedEventSourcingBehavior`（继承 `EventSourcingBehavior<TState>`）。
 - 最后执行 `ReplayAsync(actorId)`，以 Replay 结果恢复 `State`。
 
 ### 4.2 Deactivate
@@ -41,9 +44,11 @@
 
 ## 5. 开发者实现规范
 1. 命令处理代码必须显式构建领域事件：`RaiseEvent(domainEvent)`。
-2. 必须调用 `ConfirmEventsAsync` 提交 pending events。
+2. 推荐直接使用 `PersistDomainEventAsync(...)` / `PersistDomainEventsAsync(...)` 完成“提交 + apply”。
 3. 必须保证“可重放同态”：`Replay` 后状态与在线运行状态一致。
-4. 推荐通过重写 `TransitionState` 明确定义事件到状态转换。
+4. 推荐通过以下两种方式之一定义 `event -> state`：
+   - 在 Agent 中重写 `TransitionState`
+   - 通过 DI 注册 `IStateEventApplier<TState>`（复杂领域推荐）
 
 示例（简化）：
 
@@ -51,13 +56,7 @@
 [EventHandler]
 public async Task Handle(IncrementRequested evt)
 {
-    EventSourcing!.RaiseEvent(new IncrementApplied { Amount = evt.Amount });
-    await EventSourcing.ConfirmEventsAsync();
-
-    // 当前基线下，最直接的一致性方式是回放后更新内存状态
-    var replayed = await EventSourcing.ReplayAsync(Id);
-    if (replayed != null)
-        State = replayed;
+    await PersistDomainEventAsync(new IncrementApplied { Amount = evt.Amount });
 }
 ```
 
@@ -65,6 +64,8 @@ public async Task Handle(IncrementRequested evt)
 - `AddAevatarRuntime()` 默认注册 `IEventStore -> InMemoryEventStore`（开发/测试）。
 - 生产环境应替换为持久化实现（Redis/DB/日志存储等）。
 - 如需自定义 ES 行为，可直接为 Agent 预设 `EventSourcing`，但必须保持相同语义契约。
+- 如需解耦 Agent 里的 `TransitionState` 逻辑，可注册多个 `IStateEventApplier<TState>`，按 `Order` 升序匹配应用。
+- Agent 侧推荐使用 `StateTransitionMatcher.Match(...).On<TEvent>(...).OrCurrent()`，避免重复 `Any + switch` 样板代码。
 
 ## 7. 快照语义
 1. 快照仅用于减少回放开销。
diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index 7c5648dee..f797028cd 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -19,6 +19,9 @@
 ### 3.1 Event Sourcing
 - 契约：`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs`
 - 实现：`src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`
+- 状态转换扩展：`src/Aevatar.Foundation.Core/EventSourcing/IStateEventApplier.cs`
+- Typed 状态转换基类：`src/Aevatar.Foundation.Core/EventSourcing/StateEventApplierBase.cs`
+- 状态匹配器：`src/Aevatar.Foundation.Core/EventSourcing/StateTransitionMatcher.cs`
 - 生命周期：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs`
 - 运行时注入边界：
   - `src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs`
@@ -27,9 +30,11 @@
 当前语义：
 1. `ActivateAsync` 强制 Replay 恢复状态。
 2. `DeactivateAsync` 强制 `ConfirmEventsAsync + PersistSnapshotAsync`。
-3. 未设置 `EventSourcing` 时，`GAgentBase<TState>` 在泛型上下文内用 `IEventStore` 静态构造 `EventSourcingBehavior<TState>`。
+3. 未设置 `EventSourcing` 时，`GAgentBase<TState>` 在泛型上下文内用 `IEventStore` 静态构造 `AgentBackedEventSourcingBehavior`（继承 `EventSourcingBehavior<TState>`）。
 4. 缺失 `IEventStore` 时 fail-fast。
 5. `ConfirmDerivedEventsAsync` / `IDomainEventDeriver` / `EventSourcingAutoPersistenceOptions` 已从主链路移除。
+6. 运行期通过 `PersistDomainEventAsync` / `PersistDomainEventsAsync` 执行“持久化 + 顺序 apply”；Replay 主要用于激活恢复。
+7. `TransitionState` 可由 Agent override 或 `IStateEventApplier<TState>` 组合实现。
 
 ### 3.2 Provider Runtime
 - 抽象：`src/Aevatar.CQRS.Projection.Abstractions`
@@ -69,6 +74,10 @@
 ### R-ES-04 静态泛型装配
 - ES 行为构造必须在泛型上下文完成，不得回退到 Runtime 反射注入。
 
+### R-ES-05 状态转换可组合
+- `event -> state` 转换必须支持模块化拆分，避免在单个 Agent 中膨胀式 `switch`。
+- 支持 `IStateEventApplier<TState>` 组合式 apply，顺序由 `Order` 控制。
+
 ### R-RM-01 Provider 解耦业务
 - Provider 项目不得引用 Workflow/AI 业务读模型类型。
 
@@ -108,7 +117,8 @@
 ### P3（进行中）一致性与可维护性收口
 1. 清理文档与代码中的历史双轨口径。
 2. 补齐跨模块契约测试：`Command -> Events -> Replay -> State`。
-3. 统一配置示例与错误合同说明（启动失败与能力不匹配）。
+3. 收敛 state transition 模型（Agent override + applier 组合）。
+4. 统一配置示例与错误合同说明（启动失败与能力不匹配）。
 
 ### P4（待执行）性能与生产化增强
 1. 为持久化 `IEventStore` 提供生产落地方案与压测基线。
diff --git a/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs
index 005687a2f..87ca11516 100644
--- a/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs
+++ b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs
@@ -1,5 +1,7 @@
 using Aevatar.Foundation.Abstractions.Attributes;
 using Aevatar.Foundation.Core;
+using Aevatar.Foundation.Core.EventSourcing;
+using Google.Protobuf;
 using Google.Protobuf.WellKnownTypes;
 
 namespace Aevatar.CQRS.Projection.Core.Orchestration;
@@ -21,7 +23,7 @@ public static string BuildActorId(string scopeId)
     }
 
     [EventHandler]
-    public Task HandleAcquireAsync(ProjectionOwnershipAcquireEvent evt)
+    public async Task HandleAcquireAsync(ProjectionOwnershipAcquireEvent evt)
     {
         ArgumentNullException.ThrowIfNull(evt);
         if (string.IsNullOrWhiteSpace(evt.ScopeId))
@@ -35,20 +37,16 @@ public Task HandleAcquireAsync(ProjectionOwnershipAcquireEvent evt)
                 $"Projection ownership for scope '{State.ScopeId}' is already active (session '{State.SessionId}').");
         }
 
-        State.ScopeId = evt.ScopeId;
-        State.SessionId = evt.SessionId;
-        State.Active = true;
-        State.LastUpdatedAtUtc = Timestamp.FromDateTime(DateTime.UtcNow);
-        return Task.CompletedTask;
+        await PersistDomainEventAsync(evt);
     }
 
     [EventHandler]
-    public Task HandleReleaseAsync(ProjectionOwnershipReleaseEvent evt)
+    public async Task HandleReleaseAsync(ProjectionOwnershipReleaseEvent evt)
     {
         ArgumentNullException.ThrowIfNull(evt);
 
         if (!State.Active)
-            return Task.CompletedTask;
+            return;
 
         if (!string.IsNullOrWhiteSpace(evt.ScopeId) &&
             !string.Equals(evt.ScopeId, State.ScopeId, StringComparison.Ordinal))
@@ -64,9 +62,42 @@ public Task HandleReleaseAsync(ProjectionOwnershipReleaseEvent evt)
                 $"Projection ownership coordinator '{Id}' session mismatch. expected='{State.SessionId}', actual='{evt.SessionId}'.");
         }
 
-        State.Active = false;
-        State.SessionId = string.Empty;
-        State.LastUpdatedAtUtc = Timestamp.FromDateTime(DateTime.UtcNow);
-        return Task.CompletedTask;
+        await PersistDomainEventAsync(evt);
+    }
+
+    protected override ProjectionOwnershipCoordinatorState TransitionState(
+        ProjectionOwnershipCoordinatorState current,
+        IMessage evt) =>
+        StateTransitionMatcher
+            .Match(current, evt)
+            .On<ProjectionOwnershipAcquireEvent>(ApplyAcquire)
+            .On<ProjectionOwnershipReleaseEvent>(ApplyRelease)
+            .OrCurrent();
+
+    private static ProjectionOwnershipCoordinatorState ApplyAcquire(
+        ProjectionOwnershipCoordinatorState current,
+        ProjectionOwnershipAcquireEvent evt)
+    {
+        var next = current.Clone();
+        next.ScopeId = evt.ScopeId;
+        next.SessionId = evt.SessionId;
+        next.Active = true;
+        next.LastUpdatedAtUtc = Timestamp.FromDateTime(DateTime.UtcNow);
+        return next;
+    }
+
+    private static ProjectionOwnershipCoordinatorState ApplyRelease(
+        ProjectionOwnershipCoordinatorState current,
+        ProjectionOwnershipReleaseEvent evt)
+    {
+        _ = evt;
+        if (!current.Active)
+            return current;
+
+        var next = current.Clone();
+        next.Active = false;
+        next.SessionId = string.Empty;
+        next.LastUpdatedAtUtc = Timestamp.FromDateTime(DateTime.UtcNow);
+        return next;
     }
 }
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/IStateEventApplier.cs b/src/Aevatar.Foundation.Core/EventSourcing/IStateEventApplier.cs
new file mode 100644
index 000000000..1a5087572
--- /dev/null
+++ b/src/Aevatar.Foundation.Core/EventSourcing/IStateEventApplier.cs
@@ -0,0 +1,21 @@
+using Google.Protobuf;
+
+namespace Aevatar.Foundation.Core.EventSourcing;
+
+/// <summary>
+/// Stateful event applier abstraction for replay and runtime state transitions.
+/// </summary>
+public interface IStateEventApplier<TState>
+    where TState : class, IMessage<TState>, new()
+{
+    /// <summary>
+    /// Execution order for multiple appliers; lower value executes first.
+    /// </summary>
+    int Order { get; }
+
+    /// <summary>
+    /// Tries to apply one event to current state.
+    /// Returns true when handled and provides the next state.
+    /// </summary>
+    bool TryApply(TState current, IMessage evt, out TState next);
+}
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/StateEventApplierBase.cs b/src/Aevatar.Foundation.Core/EventSourcing/StateEventApplierBase.cs
new file mode 100644
index 000000000..bdbf3730a
--- /dev/null
+++ b/src/Aevatar.Foundation.Core/EventSourcing/StateEventApplierBase.cs
@@ -0,0 +1,31 @@
+using Google.Protobuf;
+namespace Aevatar.Foundation.Core.EventSourcing;
+
+/// <summary>
+/// Typed base class for state event appliers.
+/// Supports both raw TEvent and Any-packed TEvent payloads.
+/// </summary>
+public abstract class StateEventApplierBase<TState, TEvent>
+    : IStateEventApplier<TState>
+    where TState : class, IMessage<TState>, new()
+    where TEvent : class, IMessage<TEvent>, new()
+{
+    public virtual int Order => 0;
+
+    public bool TryApply(TState current, IMessage evt, out TState next)
+    {
+        ArgumentNullException.ThrowIfNull(current);
+        ArgumentNullException.ThrowIfNull(evt);
+
+        if (StateTransitionMatcher.TryExtract<TEvent>(evt, out var typed))
+        {
+            next = Apply(current, typed);
+            return true;
+        }
+
+        next = current;
+        return false;
+    }
+
+    protected abstract TState Apply(TState current, TEvent evt);
+}
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/StateTransitionMatcher.cs b/src/Aevatar.Foundation.Core/EventSourcing/StateTransitionMatcher.cs
new file mode 100644
index 000000000..5d2c67964
--- /dev/null
+++ b/src/Aevatar.Foundation.Core/EventSourcing/StateTransitionMatcher.cs
@@ -0,0 +1,72 @@
+using Google.Protobuf;
+using Google.Protobuf.WellKnownTypes;
+
+namespace Aevatar.Foundation.Core.EventSourcing;
+
+/// <summary>
+/// Helper for deterministic event-to-state transitions.
+/// Supports both raw event instances and Any-packed payloads.
+/// </summary>
+public static class StateTransitionMatcher
+{
+    public static StateTransitionBuilder<TState> Match<TState>(TState current, IMessage evt)
+    {
+        ArgumentNullException.ThrowIfNull(current);
+        ArgumentNullException.ThrowIfNull(evt);
+        return new StateTransitionBuilder<TState>(current, evt);
+    }
+
+    public static bool TryExtract<TEvent>(IMessage evt, out TEvent extracted)
+        where TEvent : class, IMessage<TEvent>, new()
+    {
+        ArgumentNullException.ThrowIfNull(evt);
+
+        if (evt is TEvent typed)
+        {
+            extracted = typed;
+            return true;
+        }
+
+        if (evt is Any any && any.TryUnpack<TEvent>(out var unpacked))
+        {
+            extracted = unpacked;
+            return true;
+        }
+
+        extracted = null!;
+        return false;
+    }
+}
+
+public sealed class StateTransitionBuilder<TState>
+{
+    private readonly TState _current;
+    private readonly IMessage _evt;
+    private bool _matched;
+    private TState _next;
+
+    internal StateTransitionBuilder(TState current, IMessage evt)
+    {
+        _current = current;
+        _evt = evt;
+        _next = current;
+    }
+
+    public StateTransitionBuilder<TState> On<TEvent>(Func<TState, TEvent, TState> applier)
+        where TEvent : class, IMessage<TEvent>, new()
+    {
+        ArgumentNullException.ThrowIfNull(applier);
+
+        if (_matched)
+            return this;
+
+        if (!StateTransitionMatcher.TryExtract<TEvent>(_evt, out var typedEvent))
+            return this;
+
+        _next = applier(_current, typedEvent);
+        _matched = true;
+        return this;
+    }
+
+    public TState OrCurrent() => _matched ? _next : _current;
+}
diff --git a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
index ea19c04e6..f1054f731 100644
--- a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
+++ b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
@@ -6,6 +6,7 @@
 using Aevatar.Foundation.Abstractions.Persistence;
 using Aevatar.Foundation.Core.EventSourcing;
 using Google.Protobuf;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace Aevatar.Foundation.Core;
 
@@ -17,6 +18,8 @@ public abstract class GAgentBase<TState> : GAgentBase, IAgent<TState>
     where TState : class, IMessage<TState>, new()
 {
     private TState _state = new();
+    private IServiceProvider? _applierServiceProvider;
+    private IReadOnlyList<IStateEventApplier<TState>> _appliers = [];
 
     /// <summary>Mutable agent state, writable only in EventHandler/OnActivateAsync scopes.</summary>
     public TState State
@@ -25,7 +28,7 @@ public TState State
         protected set { StateGuard.EnsureWritable(); _state = value; }
     }
 
-    /// <summary>State persistence store injected by runtime.</summary>
+    /// <summary>State persistence store reserved for snapshot optimization.</summary>
     public IStateStore<TState>? StateStore { get; set; }
 
     /// <summary>Event Sourcing behavior injected by runtime; required for state recovery and commit.</summary>
@@ -39,6 +42,7 @@ public override async Task ActivateAsync(CancellationToken ct = default)
         var eventSourcing = EnsureEventSourcingConfigured();
         var replayed = await eventSourcing.ReplayAsync(Id, ct);
         _state = replayed ?? new TState();
+        await OnStateChangedAsync(_state, ct);
         await OnActivateAsync(ct);
     }
 
@@ -61,6 +65,61 @@ protected virtual Task OnStateChangedAsync(TState state, CancellationToken ct) =
     /// <summary>Deactivation hook for subclass cleanup.</summary>
     protected virtual Task OnDeactivateAsync(CancellationToken ct) => Task.CompletedTask;
 
+    /// <summary>
+    /// Applies one persisted domain event to state.
+    /// Default behavior delegates to registered <see cref="IStateEventApplier{TState}"/> instances.
+    /// Override this method for agent-local transition logic.
+    /// </summary>
+    protected virtual TState TransitionState(TState current, IMessage evt)
+    {
+        foreach (var applier in ResolveStateEventAppliers())
+        {
+            if (applier.TryApply(current, evt, out var next))
+                return next;
+        }
+
+        return current;
+    }
+
+    /// <summary>
+    /// Persist one domain event, then apply it to in-memory state.
+    /// </summary>
+    protected Task PersistDomainEventAsync<TEvent>(TEvent evt, CancellationToken ct = default)
+        where TEvent : IMessage
+    {
+        ArgumentNullException.ThrowIfNull(evt);
+        return PersistDomainEventsAsync([evt], ct);
+    }
+
+    /// <summary>
+    /// Persist domain events as one commit, then apply them to in-memory state in order.
+    /// </summary>
+    protected async Task PersistDomainEventsAsync(
+        IEnumerable<IMessage> events,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(events);
+
+        var domainEvents = events as IMessage[] ?? events.ToArray();
+        if (domainEvents.Length == 0)
+            return;
+
+        for (var i = 0; i < domainEvents.Length; i++)
+            ArgumentNullException.ThrowIfNull(domainEvents[i]);
+
+        var eventSourcing = EnsureEventSourcingConfigured();
+        foreach (var evt in domainEvents)
+            eventSourcing.RaiseEvent(evt);
+
+        await eventSourcing.ConfirmEventsAsync(ct);
+
+        using var guard = StateGuard.BeginWriteScope();
+        foreach (var evt in domainEvents)
+            _state = eventSourcing.TransitionState(_state, evt);
+
+        await OnStateChangedAsync(_state, ct);
+    }
+
     private IEventSourcingBehavior<TState> EnsureEventSourcingConfigured()
     {
         if (EventSourcing != null)
@@ -68,7 +127,7 @@ private IEventSourcingBehavior<TState> EnsureEventSourcingConfigured()
 
         if (Services?.GetService(typeof(IEventStore)) is IEventStore eventStore)
         {
-            EventSourcing = new EventSourcingBehavior<TState>(eventStore, Id);
+            EventSourcing = new AgentBackedEventSourcingBehavior(eventStore, Id, this);
             return EventSourcing;
         }
 
@@ -76,4 +135,40 @@ private IEventSourcingBehavior<TState> EnsureEventSourcingConfigured()
             $"Stateful agent '{GetType().FullName}' requires '{typeof(IEventSourcingBehavior<TState>).FullName}' " +
             $"for actor '{Id}'.");
     }
+
+    private IReadOnlyList<IStateEventApplier<TState>> ResolveStateEventAppliers()
+    {
+        if (ReferenceEquals(_applierServiceProvider, Services))
+            return _appliers;
+
+        _applierServiceProvider = Services;
+        if (Services == null)
+        {
+            _appliers = [];
+            return _appliers;
+        }
+
+        _appliers = Services
+            .GetServices<IStateEventApplier<TState>>()
+            .OrderBy(x => x.Order)
+            .ToArray();
+        return _appliers;
+    }
+
+    private sealed class AgentBackedEventSourcingBehavior : EventSourcingBehavior<TState>
+    {
+        private readonly GAgentBase<TState> _owner;
+
+        public AgentBackedEventSourcingBehavior(
+            IEventStore eventStore,
+            string agentId,
+            GAgentBase<TState> owner)
+            : base(eventStore, agentId)
+        {
+            _owner = owner;
+        }
+
+        public override TState TransitionState(TState current, IMessage evt) =>
+            _owner.TransitionState(current, evt);
+    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Core/WorkflowGAgent.cs b/src/workflow/Aevatar.Workflow.Core/WorkflowGAgent.cs
index 64eadaf05..aee02c1ed 100644
--- a/src/workflow/Aevatar.Workflow.Core/WorkflowGAgent.cs
+++ b/src/workflow/Aevatar.Workflow.Core/WorkflowGAgent.cs
@@ -16,6 +16,7 @@
 
 using Aevatar.Foundation.Abstractions;
 using Aevatar.Foundation.Core;
+using Aevatar.Foundation.Core.EventSourcing;
 using Aevatar.Foundation.Abstractions.Attributes;
 using Aevatar.Foundation.Abstractions.Persistence;
 using Aevatar.Workflow.Abstractions;
@@ -24,6 +25,7 @@
 using Aevatar.Workflow.Core.Validation;
 using Aevatar.Workflow.Core.Composition;
 using Aevatar.Foundation.Abstractions.EventModules;
+using Google.Protobuf;
 using Google.Protobuf.WellKnownTypes;
 using Microsoft.Extensions.Logging;
 
@@ -78,8 +80,7 @@ public WorkflowGAgent(
     /// <inheritdoc />
     protected override async Task OnActivateAsync(CancellationToken ct)
     {
-        if (!string.IsNullOrEmpty(State.WorkflowYaml))
-            TryCompile(State.WorkflowYaml);
+        RebuildCompiledWorkflowCache();
 
         InstallCognitiveModules();
         await base.OnActivateAsync(ct);
@@ -88,37 +89,22 @@ protected override async Task OnActivateAsync(CancellationToken ct)
     /// <summary>
     /// 配置工作流 YAML 并立即编译、重装模块。
     /// </summary>
-    public void ConfigureWorkflow(string workflowYaml, string workflowName)
+    public async Task ConfigureWorkflowAsync(
+        string workflowYaml,
+        string? workflowName,
+        CancellationToken ct = default)
     {
-        var incomingWorkflowName = string.IsNullOrWhiteSpace(workflowName) ? string.Empty : workflowName.Trim();
-        var currentWorkflowName = string.IsNullOrWhiteSpace(State.WorkflowName) ? string.Empty : State.WorkflowName.Trim();
-        if (!string.IsNullOrWhiteSpace(currentWorkflowName) &&
-            !string.IsNullOrWhiteSpace(incomingWorkflowName) &&
-            !string.Equals(currentWorkflowName, incomingWorkflowName, StringComparison.OrdinalIgnoreCase))
+        EnsureWorkflowNameCanBind(workflowName);
+        await PersistDomainEventAsync(new ConfigureWorkflowEvent
         {
-            throw new InvalidOperationException(
-                $"WorkflowGAgent '{Id}' is already bound to workflow '{State.WorkflowName}' and cannot switch to '{workflowName}'.");
-        }
-
-        State.WorkflowYaml = workflowYaml ?? string.Empty;
-        if (!string.IsNullOrWhiteSpace(incomingWorkflowName))
-            State.WorkflowName = incomingWorkflowName;
-
+            WorkflowName = workflowName ?? string.Empty,
+            WorkflowYaml = workflowYaml ?? string.Empty,
+        }, ct);
+        RebuildCompiledWorkflowCache();
         _childAgentIds.Clear();
 
-        if (string.IsNullOrWhiteSpace(State.WorkflowYaml))
-        {
-            State.Compiled = false;
-            State.CompilationError = "workflow yaml is empty";
-            _compiledWorkflow = null;
-        }
-        else
-        {
-            TryCompile(State.WorkflowYaml);
-        }
-
         InstallCognitiveModules();
-        SchedulePersistWorkflowBinding(workflowName);
+        await PersistWorkflowBindingAsync(workflowName ?? string.Empty, ct);
     }
 
     /// <inheritdoc />
@@ -155,8 +141,7 @@ await PublishAsync(new StartWorkflowEvent
     [EventHandler]
     public async Task HandleConfigureWorkflow(ConfigureWorkflowEvent request)
     {
-        ConfigureWorkflow(request.WorkflowYaml, request.WorkflowName);
-        await PersistWorkflowBindingAsync(request.WorkflowName);
+        await ConfigureWorkflowAsync(request.WorkflowYaml, request.WorkflowName);
     }
 
     // ─── 工作流完成 ───
@@ -165,10 +150,8 @@ public async Task HandleConfigureWorkflow(ConfigureWorkflowEvent request)
     [EventHandler]
     public async Task HandleWorkflowCompleted(WorkflowCompletedEvent evt)
     {
+        await PersistDomainEventAsync(evt);
         Logger.LogInformation("工作流 {Name} 完成: {Success}", evt.WorkflowName, evt.Success);
-        State.TotalExecutions++;
-        if (evt.Success) State.SuccessfulExecutions++;
-        else State.FailedExecutions++;
 
         // 使用 AG-UI 事件发布最终结果
         await PublishAsync(new TextMessageEndEvent
@@ -252,48 +235,103 @@ private void ConfigureModule(IEventModule module)
 
     // ─── 编译 + 验证 ───
 
-    private void TryCompile(string yaml)
+    protected override WorkflowState TransitionState(WorkflowState current, IMessage evt) =>
+        StateTransitionMatcher
+            .Match(current, evt)
+            .On<ConfigureWorkflowEvent>(ApplyConfigureWorkflow)
+            .On<WorkflowCompletedEvent>(ApplyWorkflowCompleted)
+            .OrCurrent();
+
+    private WorkflowState ApplyConfigureWorkflow(WorkflowState current, ConfigureWorkflowEvent evt)
     {
+        var next = current.Clone();
+        next.WorkflowYaml = evt.WorkflowYaml ?? string.Empty;
+
+        var incomingWorkflowName = string.IsNullOrWhiteSpace(evt.WorkflowName)
+            ? string.Empty
+            : evt.WorkflowName.Trim();
+        if (!string.IsNullOrWhiteSpace(incomingWorkflowName))
+            next.WorkflowName = incomingWorkflowName;
+
+        var compileResult = EvaluateWorkflowCompilation(next.WorkflowYaml);
+        next.Compiled = compileResult.Compiled;
+        next.CompilationError = compileResult.CompilationError;
+        next.Version = current.Version + 1;
+        return next;
+    }
+
+    private static WorkflowState ApplyWorkflowCompleted(WorkflowState current, WorkflowCompletedEvent evt)
+    {
+        var next = current.Clone();
+        next.TotalExecutions++;
+        if (evt.Success)
+            next.SuccessfulExecutions++;
+        else
+            next.FailedExecutions++;
+        return next;
+    }
+
+    private WorkflowCompilationResult EvaluateWorkflowCompilation(string yaml)
+    {
+        if (string.IsNullOrWhiteSpace(yaml))
+            return WorkflowCompilationResult.Invalid("workflow yaml is empty");
+
         try
         {
             var workflow = _parser.Parse(yaml);
             var errors = WorkflowValidator.Validate(workflow);
             if (errors.Count > 0)
-            {
-                State.Compiled = false;
-                State.CompilationError = string.Join("; ", errors);
-                _compiledWorkflow = null;
-                return;
-            }
-            _compiledWorkflow = workflow;
-            State.Compiled = true;
-            State.CompilationError = "";
+                return WorkflowCompilationResult.Invalid(string.Join("; ", errors));
+
+            return WorkflowCompilationResult.Success;
         }
         catch (Exception ex)
         {
-            State.Compiled = false;
-            State.CompilationError = ex.Message;
-            _compiledWorkflow = null;
+            return WorkflowCompilationResult.Invalid(ex.Message);
         }
     }
 
-    private void SchedulePersistWorkflowBinding(string workflowName)
+    private void RebuildCompiledWorkflowCache()
     {
-        _ = PersistWorkflowBindingSafeAsync(workflowName);
-    }
+        if (string.IsNullOrWhiteSpace(State.WorkflowYaml))
+        {
+            _compiledWorkflow = null;
+            return;
+        }
 
-    private async Task PersistWorkflowBindingSafeAsync(string workflowName)
-    {
         try
         {
-            await PersistWorkflowBindingAsync(workflowName);
+            var workflow = _parser.Parse(State.WorkflowYaml);
+            var errors = WorkflowValidator.Validate(workflow);
+            _compiledWorkflow = errors.Count == 0 ? workflow : null;
         }
-        catch (Exception ex)
+        catch
+        {
+            _compiledWorkflow = null;
+        }
+    }
+
+    private void EnsureWorkflowNameCanBind(string? workflowName)
+    {
+        var incomingWorkflowName = string.IsNullOrWhiteSpace(workflowName) ? string.Empty : workflowName.Trim();
+        var currentWorkflowName = string.IsNullOrWhiteSpace(State.WorkflowName) ? string.Empty : State.WorkflowName.Trim();
+        if (!string.IsNullOrWhiteSpace(currentWorkflowName) &&
+            !string.IsNullOrWhiteSpace(incomingWorkflowName) &&
+            !string.Equals(currentWorkflowName, incomingWorkflowName, StringComparison.OrdinalIgnoreCase))
         {
-            Logger.LogWarning(ex, "Failed to persist workflow binding metadata for actor {ActorId}", Id);
+            throw new InvalidOperationException(
+                $"WorkflowGAgent '{Id}' is already bound to workflow '{State.WorkflowName}' and cannot switch to '{workflowName}'.");
         }
     }
 
+    private readonly record struct WorkflowCompilationResult(bool Compiled, string CompilationError)
+    {
+        public static WorkflowCompilationResult Success => new(true, string.Empty);
+
+        public static WorkflowCompilationResult Invalid(string error) =>
+            new(false, error ?? string.Empty);
+    }
+
     private async Task PersistWorkflowBindingAsync(string workflowName, CancellationToken ct = default)
     {
         if (ManifestStore == null || string.IsNullOrWhiteSpace(Id))
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
index f10f62f59..9f0762d3b 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
@@ -1,11 +1,12 @@
 using Aevatar.CQRS.Projection.Core.Orchestration;
 using Aevatar.CQRS.Projection.Core.Streaming;
-using Aevatar.Foundation.Abstractions.Streaming;
 using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Abstractions.Streaming;
 using Aevatar.Foundation.Abstractions.TypeSystem;
 using Aevatar.Foundation.Core.TypeSystem;
 using FluentAssertions;
 using Google.Protobuf;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace Aevatar.CQRS.Projection.Core.Tests;
 
@@ -133,10 +134,17 @@ private static ActorProjectionOwnershipCoordinator CreateCoordinator(
 
 public class ProjectionOwnershipCoordinatorGAgentTests
 {
+    private static IServiceProvider CreateStatefulAgentServices()
+    {
+        var services = new ServiceCollection();
+        services.AddSingleton<IEventStore, TestInMemoryEventStore>();
+        return services.BuildServiceProvider();
+    }
+
     [Fact]
     public async Task HandleAcquireAsync_ShouldActivateOwnershipState()
     {
-        var agent = new ProjectionOwnershipCoordinatorGAgent();
+        var agent = new ProjectionOwnershipCoordinatorGAgent { Services = CreateStatefulAgentServices() };
 
         await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         {
@@ -153,7 +161,7 @@ await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
     [Fact]
     public async Task HandleAcquireAsync_ShouldThrow_WhenOwnershipAlreadyActive()
     {
-        var agent = new ProjectionOwnershipCoordinatorGAgent();
+        var agent = new ProjectionOwnershipCoordinatorGAgent { Services = CreateStatefulAgentServices() };
         await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         {
             ScopeId = "scope-1",
@@ -172,7 +180,7 @@ await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
     [Fact]
     public async Task HandleReleaseAsync_ShouldDeactivate_WhenScopeAndSessionMatch()
     {
-        var agent = new ProjectionOwnershipCoordinatorGAgent();
+        var agent = new ProjectionOwnershipCoordinatorGAgent { Services = CreateStatefulAgentServices() };
         await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         {
             ScopeId = "scope-1",
@@ -192,7 +200,7 @@ await agent.HandleReleaseAsync(new ProjectionOwnershipReleaseEvent
     [Fact]
     public async Task HandleReleaseAsync_ShouldThrow_WhenScopeDoesNotMatch()
     {
-        var agent = new ProjectionOwnershipCoordinatorGAgent();
+        var agent = new ProjectionOwnershipCoordinatorGAgent { Services = CreateStatefulAgentServices() };
         await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         {
             ScopeId = "scope-1",
@@ -400,6 +408,71 @@ internal sealed class StringSessionEventCodec : IProjectionSessionEventCodec<str
         string.Equals(eventType, "string", StringComparison.Ordinal) ? payload : null;
 }
 
+internal sealed class TestInMemoryEventStore : IEventStore
+{
+    private readonly Dictionary<string, List<StateEvent>> _streams = new(StringComparer.Ordinal);
+    private readonly object _sync = new();
+
+    public Task<long> AppendAsync(
+        string agentId,
+        IEnumerable<StateEvent> events,
+        long expectedVersion,
+        CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        lock (_sync)
+        {
+            if (!_streams.TryGetValue(agentId, out var stream))
+            {
+                stream = [];
+                _streams[agentId] = stream;
+            }
+
+            var currentVersion = stream.Count == 0 ? 0 : stream[^1].Version;
+            if (currentVersion != expectedVersion)
+            {
+                throw new InvalidOperationException(
+                    $"Version mismatch for stream '{agentId}'. expected={expectedVersion}, actual={currentVersion}.");
+            }
+
+            var appended = events.ToList();
+            stream.AddRange(appended.Select(x => x.Clone()));
+            var latest = stream.Count == 0 ? 0 : stream[^1].Version;
+            return Task.FromResult(latest);
+        }
+    }
+
+    public Task<IReadOnlyList<StateEvent>> GetEventsAsync(
+        string agentId,
+        long? fromVersion = null,
+        CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        lock (_sync)
+        {
+            if (!_streams.TryGetValue(agentId, out var stream))
+                return Task.FromResult<IReadOnlyList<StateEvent>>([]);
+
+            var filtered = fromVersion.HasValue
+                ? stream.Where(x => x.Version > fromVersion.Value).ToList()
+                : stream.ToList();
+            return Task.FromResult<IReadOnlyList<StateEvent>>(filtered.Select(x => x.Clone()).ToList());
+        }
+    }
+
+    public Task<long> GetVersionAsync(string agentId, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        lock (_sync)
+        {
+            if (!_streams.TryGetValue(agentId, out var stream) || stream.Count == 0)
+                return Task.FromResult(0L);
+
+            return Task.FromResult(stream[^1].Version);
+        }
+    }
+}
+
 internal sealed class SessionHubStreamProvider : IStreamProvider
 {
     private readonly Dictionary<string, SessionHubStream> _streams = new(StringComparer.Ordinal);
diff --git a/test/Aevatar.Foundation.Core.Tests/Bdd/AgentLifecycleBddTests.cs b/test/Aevatar.Foundation.Core.Tests/Bdd/AgentLifecycleBddTests.cs
index ae43c90db..876569ff7 100644
--- a/test/Aevatar.Foundation.Core.Tests/Bdd/AgentLifecycleBddTests.cs
+++ b/test/Aevatar.Foundation.Core.Tests/Bdd/AgentLifecycleBddTests.cs
@@ -118,17 +118,13 @@ public CounterReplayBehavior(IEventStore eventStore, string agentId)
             : base(eventStore, agentId) { }
 
         public override CounterState TransitionState(CounterState current, IMessage evt)
-        {
-            if (evt is Any any && any.TryUnpack<IncrementEvent>(out var inc))
-            {
-                return new CounterState
+            => StateTransitionMatcher
+                .Match(current, evt)
+                .On<IncrementEvent>((state, inc) => new CounterState
                 {
-                    Count = current.Count + inc.Amount,
-                    Name = current.Name,
-                };
-            }
-
-            return current;
-        }
+                    Count = state.Count + inc.Amount,
+                    Name = state.Name,
+                })
+                .OrCurrent();
     }
 }
diff --git a/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs b/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
index d08dcba7d..004aec006 100644
--- a/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
+++ b/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
@@ -219,14 +219,19 @@ public CounterEventSourcingBehavior(
             : base(eventStore, agentId, snapshotStore, snapshotStrategy) { }
 
         public override CounterState TransitionState(CounterState current, IMessage evt)
-        {
-            if (evt is not Any any) return current;
-            if (any.TryUnpack<IncrementEvent>(out var inc))
-                return new CounterState { Count = current.Count + inc.Amount, Name = current.Name };
-            if (any.TryUnpack<DecrementEvent>(out var dec))
-                return new CounterState { Count = current.Count - dec.Amount, Name = current.Name };
-            return base.TransitionState(current, evt);
-        }
+            => StateTransitionMatcher
+                .Match(current, evt)
+                .On<IncrementEvent>((state, inc) => new CounterState
+                {
+                    Count = state.Count + inc.Amount,
+                    Name = state.Name,
+                })
+                .On<DecrementEvent>((state, dec) => new CounterState
+                {
+                    Count = state.Count - dec.Amount,
+                    Name = state.Name,
+                })
+                .OrCurrent();
     }
 
     private sealed class InMemoryEventSourcingSnapshotStore<TState> : IEventSourcingSnapshotStore<TState>
@@ -387,6 +392,73 @@ public async Task EventSourcingAgent_WithoutBehavior_ShouldFailFastOnActivate()
     }
 }
 
+public class StateEventApplierIntegrationTests
+{
+    [Fact]
+    public async Task PersistDomainEventAsync_ShouldUseRegisteredAppliers_ForRuntimeAndReplay()
+    {
+        var store = new InMemoryEventStore();
+        var services = new ServiceCollection()
+            .AddSingleton<IEventStore>(store)
+            .AddSingleton<IStateEventApplier<CounterState>, CounterIncrementApplier>()
+            .AddSingleton<IStateEventApplier<CounterState>, CounterDecrementApplier>()
+            .AddSingleton<IEnumerable<IGAgentExecutionHook>>(Array.Empty<IGAgentExecutionHook>())
+            .BuildServiceProvider();
+
+        var agent1 = new ApplierBackedCounterAgent
+        {
+            Services = services,
+        };
+        agent1.SetId("applier-agent");
+        await agent1.ActivateAsync();
+        await agent1.HandleEventAsync(TestHelper.Envelope(new IncrementEvent { Amount = 8 }));
+        await agent1.HandleEventAsync(TestHelper.Envelope(new DecrementEvent { Amount = 3 }));
+        agent1.State.Count.ShouldBe(5);
+        await agent1.DeactivateAsync();
+
+        var agent2 = new ApplierBackedCounterAgent
+        {
+            Services = services,
+        };
+        agent2.SetId("applier-agent");
+        await agent2.ActivateAsync();
+        agent2.State.Count.ShouldBe(5);
+    }
+
+    private sealed class ApplierBackedCounterAgent : GAgentBase<CounterState>
+    {
+        [EventHandler]
+        public Task HandleIncrement(IncrementEvent evt) =>
+            PersistDomainEventAsync(evt);
+
+        [EventHandler]
+        public Task HandleDecrement(DecrementEvent evt) =>
+            PersistDomainEventAsync(evt);
+    }
+
+    private sealed class CounterIncrementApplier
+        : StateEventApplierBase<CounterState, IncrementEvent>
+    {
+        protected override CounterState Apply(CounterState current, IncrementEvent evt) =>
+            new()
+            {
+                Count = current.Count + evt.Amount,
+                Name = current.Name,
+            };
+    }
+
+    private sealed class CounterDecrementApplier
+        : StateEventApplierBase<CounterState, DecrementEvent>
+    {
+        protected override CounterState Apply(CounterState current, DecrementEvent evt) =>
+            new()
+            {
+                Count = current.Count - evt.Amount,
+                Name = current.Name,
+            };
+    }
+}
+
 public class SnapshotStrategyTests
 {
     [Fact]
diff --git a/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs b/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs
index 9aa5f18ee..30948a6db 100644
--- a/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs
+++ b/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs
@@ -2,6 +2,8 @@
 using Aevatar.AI.Abstractions.Agents;
 using Aevatar.Foundation.Abstractions;
 using Aevatar.Foundation.Abstractions.EventModules;
+using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Runtime.Persistence;
 using Aevatar.Workflow.Abstractions;
 using Aevatar.Workflow.Core;
 using Aevatar.Workflow.Core.Composition;
@@ -15,14 +17,14 @@ namespace Aevatar.Integration.Tests;
 public class WorkflowGAgentCoverageTests
 {
     [Fact]
-    public void ConfigureWorkflow_WhenSwitchingWorkflowName_ShouldThrow()
+    public async Task ConfigureWorkflow_WhenSwitchingWorkflowName_ShouldThrow()
     {
         var agent = CreateAgent();
-        agent.ConfigureWorkflow(BuildValidWorkflowYaml("role_a", "RoleA"), "wf_a");
+        await agent.ConfigureWorkflowAsync(BuildValidWorkflowYaml("role_a", "RoleA"), "wf_a");
 
-        Action act = () => agent.ConfigureWorkflow(BuildValidWorkflowYaml("role_a", "RoleA"), "wf_b");
+        Func<Task> act = () => agent.ConfigureWorkflowAsync(BuildValidWorkflowYaml("role_a", "RoleA"), "wf_b");
 
-        act.Should().Throw<InvalidOperationException>()
+        await act.Should().ThrowAsync<InvalidOperationException>()
             .WithMessage("*cannot switch*");
     }
 
@@ -31,7 +33,7 @@ public async Task ConfigureWorkflow_WithEmptyYaml_ShouldMarkInvalidAndDescribe()
     {
         var agent = CreateAgent();
 
-        agent.ConfigureWorkflow("", "wf_empty");
+        await agent.ConfigureWorkflowAsync("", "wf_empty");
         var description = await agent.GetDescriptionAsync();
 
         agent.State.Compiled.Should().BeFalse();
@@ -47,7 +49,7 @@ public async Task HandleChatRequest_WhenNotCompiled_ShouldPublishFailureResponse
         var runtime = new RecordingActorRuntime();
         var agent = CreateAgent(runtime: runtime);
         agent.EventPublisher = publisher;
-        agent.ConfigureWorkflow("", "wf_invalid");
+        await agent.ConfigureWorkflowAsync("", "wf_invalid");
 
         await agent.HandleChatRequest(new ChatRequestEvent
         {
@@ -70,7 +72,7 @@ public async Task HandleChatRequest_WhenCompiled_ShouldCreateRoleActorsOnlyOnceA
         var resolver = new StaticRoleAgentTypeResolver(typeof(FakeRoleAgent));
         var agent = CreateAgent(runtime, resolver);
         agent.EventPublisher = publisher;
-        agent.ConfigureWorkflow(BuildValidWorkflowYaml("role_a", "RoleA"), "wf_ok");
+        await agent.ConfigureWorkflowAsync(BuildValidWorkflowYaml("role_a", "RoleA"), "wf_ok");
 
         await agent.HandleChatRequest(new ChatRequestEvent { Prompt = "first", SessionId = "s1" });
         await agent.HandleChatRequest(new ChatRequestEvent { Prompt = "second", SessionId = "s2" });
@@ -96,7 +98,7 @@ public async Task HandleChatRequest_WhenResolvedAgentNotIRoleAgent_ShouldThrow()
         var runtime = new RecordingActorRuntime();
         var resolver = new StaticRoleAgentTypeResolver(typeof(FakeNonRoleAgent));
         var agent = CreateAgent(runtime, resolver);
-        agent.ConfigureWorkflow(BuildValidWorkflowYaml("role_x", "RoleX"), "wf_error");
+        await agent.ConfigureWorkflowAsync(BuildValidWorkflowYaml("role_x", "RoleX"), "wf_error");
 
         var act = async () => await agent.HandleChatRequest(new ChatRequestEvent { Prompt = "x", SessionId = "s" });
 
@@ -110,7 +112,7 @@ public async Task HandleChatRequest_WhenRoleIdMissing_ShouldThrow()
         var runtime = new RecordingActorRuntime();
         var resolver = new StaticRoleAgentTypeResolver(typeof(FakeRoleAgent));
         var agent = CreateAgent(runtime, resolver);
-        agent.ConfigureWorkflow(BuildValidWorkflowYaml("", "RoleNoId"), "wf_missing_role");
+        await agent.ConfigureWorkflowAsync(BuildValidWorkflowYaml("", "RoleNoId"), "wf_missing_role");
 
         var act = async () => await agent.HandleChatRequest(new ChatRequestEvent { Prompt = "x", SessionId = "s" });
 
@@ -149,7 +151,7 @@ await agent.HandleWorkflowCompleted(new WorkflowCompletedEvent
     }
 
     [Fact]
-    public void ConfigureWorkflow_ShouldInstallAndConfigureModules()
+    public async Task ConfigureWorkflow_ShouldInstallAndConfigureModules()
     {
         var factory = new RecordingEventModuleFactory();
         var expander = new StaticDependencyExpander(10, "module_a", "module_b");
@@ -157,7 +159,7 @@ public void ConfigureWorkflow_ShouldInstallAndConfigureModules()
         var pack = new TestModulePack([expander], [configurator]);
         var agent = CreateAgent(eventModuleFactory: factory, packs: [pack]);
 
-        agent.ConfigureWorkflow(BuildValidWorkflowYaml("role_a", "RoleA"), "wf_modules");
+        await agent.ConfigureWorkflowAsync(BuildValidWorkflowYaml("role_a", "RoleA"), "wf_modules");
 
         agent.GetModules().Select(x => x.Name).Should().BeEquivalentTo(["module_a", "module_b"]);
         configurator.Configured.Should().BeEquivalentTo(["module_a:wf_valid", "module_b:wf_valid"]);
@@ -171,29 +173,38 @@ public async Task ActivateAsync_WhenStateContainsWorkflowYaml_ShouldCompileAndIn
         var expander = new StaticDependencyExpander(0, "module_on_activate");
         var configurator = new RecordingModuleConfigurator();
         var pack = new TestModulePack([expander], [configurator]);
-        var agent = CreateAgent(eventModuleFactory: factory, packs: [pack]);
-        agent.State.WorkflowYaml = BuildValidWorkflowYaml("role_a", "RoleA");
+        var sharedEventStore = new InMemoryEventStore();
+
+        var agent1 = CreateAgent(eventModuleFactory: factory, packs: [pack], eventStore: sharedEventStore);
+        await agent1.ActivateAsync();
+        await agent1.ConfigureWorkflowAsync(BuildValidWorkflowYaml("role_a", "RoleA"), "wf_activate");
+        await agent1.DeactivateAsync();
 
-        await agent.ActivateAsync();
+        var agent2 = CreateAgent(eventModuleFactory: factory, packs: [pack], eventStore: sharedEventStore);
+        await agent2.ActivateAsync();
 
-        agent.State.Compiled.Should().BeTrue();
-        agent.GetModules().Should().ContainSingle(x => x.Name == "module_on_activate");
-        configurator.Configured.Should().ContainSingle(x => x == "module_on_activate:wf_valid");
+        agent2.State.Compiled.Should().BeTrue();
+        agent2.GetModules().Should().ContainSingle(x => x.Name == "module_on_activate");
+        configurator.Configured.Should().Contain(x => x == "module_on_activate:wf_valid");
     }
 
     private static WorkflowGAgent CreateAgent(
         RecordingActorRuntime? runtime = null,
         IRoleAgentTypeResolver? roleResolver = null,
         IEventModuleFactory? eventModuleFactory = null,
-        IEnumerable<IWorkflowModulePack>? packs = null)
+        IEnumerable<IWorkflowModulePack>? packs = null,
+        IEventStore? eventStore = null)
     {
         runtime ??= new RecordingActorRuntime();
         roleResolver ??= new StaticRoleAgentTypeResolver(typeof(FakeRoleAgent));
         eventModuleFactory ??= new RecordingEventModuleFactory();
         packs ??= [];
+        eventStore ??= new InMemoryEventStore();
         var agent = new WorkflowGAgent(runtime, roleResolver, eventModuleFactory, packs)
         {
-            Services = new Microsoft.Extensions.DependencyInjection.ServiceCollection().BuildServiceProvider(),
+            Services = new ServiceCollection()
+                .AddSingleton(eventStore)
+                .BuildServiceProvider(),
         };
         return agent;
     }

From b2d8763410bd54ba2bdeb2845470afe19387d8e6 Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Mon, 23 Feb 2026 23:35:18 +0800
Subject: [PATCH 05/46] Implement CI Guard for Direct State Mutation in
 GAgentBase

- Added a CI guard to prevent direct mutations of `State.xxx` in any subclass of `GAgentBase<TState>`, enforcing the use of domain events and state transition mechanisms.
- Updated documentation to reflect the new restriction on state management practices.
- Enhanced existing architecture documentation to clarify the requirements for state transitions and event handling.
---
 docs/EVENT_SOURCING.md                        |   1 +
 ...ng-elasticsearch-readmodel-requirements.md |   1 +
 tools/ci/architecture_guards.sh               | 146 ++++++++++++++++++
 3 files changed, 148 insertions(+)

diff --git a/docs/EVENT_SOURCING.md b/docs/EVENT_SOURCING.md
index 672d55700..210112193 100644
--- a/docs/EVENT_SOURCING.md
+++ b/docs/EVENT_SOURCING.md
@@ -77,6 +77,7 @@ public async Task Handle(IncrementRequested evt)
 2. 在核心路径恢复 `ConfirmDerivedEventsAsync` / `IDomainEventDeriver` 旧模型。
 3. 在 `GAgentBase<TState>` 恢复 `StateStore.LoadAsync/SaveAsync` 事实通道。
 4. 在 Runtime 恢复反射注入 ES（`MakeGenericType` / `GetProperty("EventSourcing")` / `GetProperty("StateStore")`）。
+5. 在任何继承链路（含间接继承）上的 `GAgentBase<TState>` 子类中直接写 `State.xxx`（`= / += / ++ / --`）。
 
 ## 9. 验证命令
 - `dotnet test test/Aevatar.Foundation.Core.Tests/Aevatar.Foundation.Core.Tests.csproj --nologo`
diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index f797028cd..adfa6c4f2 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -77,6 +77,7 @@
 ### R-ES-05 状态转换可组合
 - `event -> state` 转换必须支持模块化拆分，避免在单个 Agent 中膨胀式 `switch`。
 - 支持 `IStateEventApplier<TState>` 组合式 apply，顺序由 `Order` 控制。
+- CI 必须禁止 `GAgentBase<TState>` 全继承链（含间接继承）子类直接修改 `State.xxx`，强制通过领域事件 + apply 路径变更状态。
 
 ### R-RM-01 Provider 解耦业务
 - Provider 项目不得引用 Workflow/AI 业务读模型类型。
diff --git a/tools/ci/architecture_guards.sh b/tools/ci/architecture_guards.sh
index ea2d44abf..4c3cd8a99 100755
--- a/tools/ci/architecture_guards.sh
+++ b/tools/ci/architecture_guards.sh
@@ -92,6 +92,152 @@ if rg -n "StateStore\.LoadAsync|StateStore\.SaveAsync" src/Aevatar.Foundation.Co
   exit 1
 fi
 
+set +e
+state_direct_mutation_report="$(
+  rg --files -0 src -g '*.cs' -g '!*.g.cs' \
+    | xargs -0 awk '
+function trim(value)
+{
+  gsub(/^[[:space:]]+/, "", value);
+  gsub(/[[:space:]]+$/, "", value);
+  return value;
+}
+
+function normalize_base(value)
+{
+  value = trim(value);
+  sub(/<.*/, "", value);
+  sub(/^.*\./, "", value);
+  gsub(/[[:space:]]+/, "", value);
+  return value;
+}
+
+function register_base(class_name, base_clause, parts, first_base)
+{
+  if (class_name == "")
+    return;
+
+  split(base_clause, parts, ",");
+  first_base = normalize_base(parts[1]);
+  if (first_base != "")
+    class_base[class_name] = first_base;
+
+  pending_class[FILENAME] = "";
+}
+
+{
+  line = $0;
+
+  if (pending_class[FILENAME] != "")
+  {
+    if (line ~ /^[[:space:]]*:/)
+    {
+      base_clause = line;
+      sub(/^[[:space:]]*:[[:space:]]*/, "", base_clause);
+      sub(/\{.*/, "", base_clause);
+      register_base(pending_class[FILENAME], base_clause);
+    }
+    else if (line ~ /\{/)
+    {
+      pending_class[FILENAME] = "";
+    }
+  }
+
+  if (match(line, /[[:space:]]class[[:space:]]+[A-Za-z_][A-Za-z0-9_]*/))
+  {
+    class_decl = substr(line, RSTART, RLENGTH);
+    sub(/^.*class[[:space:]]+/, "", class_decl);
+    class_name = class_decl;
+    file_class[FILENAME SUBSEP class_name] = 1;
+
+    tail = substr(line, RSTART + RLENGTH);
+    if (tail ~ /:/)
+    {
+      base_clause = tail;
+      sub(/^.*:[[:space:]]*/, "", base_clause);
+      sub(/\{.*/, "", base_clause);
+      register_base(class_name, base_clause);
+    }
+    else if (tail !~ /\{/)
+    {
+      pending_class[FILENAME] = class_name;
+    }
+    else
+    {
+      pending_class[FILENAME] = "";
+    }
+  }
+
+  if (line ~ /^[[:space:]]*\/\//)
+    next;
+
+  if (line ~ /(^|[[:space:](;])(this\.)?State\.[A-Za-z_][A-Za-z0-9_]*[[:space:]]*(\+\+|--|[+*%\/-]?=)/)
+  {
+    state_mutation[FILENAME] = state_mutation[FILENAME] sprintf("%s:%d:%s\n", FILENAME, FNR, line);
+  }
+}
+
+END {
+  stateful["GAgentBase"] = 1;
+  changed = 1;
+  while (changed)
+  {
+    changed = 0;
+    for (class_name in class_base)
+    {
+      base_name = class_base[class_name];
+      if ((base_name in stateful) && !(class_name in stateful))
+      {
+        stateful[class_name] = 1;
+        changed = 1;
+      }
+    }
+  }
+
+  violations = "";
+  for (file in state_mutation)
+  {
+    is_stateful_file = 0;
+    for (key in file_class)
+    {
+      split(key, tokens, SUBSEP);
+      if (tokens[1] != file)
+        continue;
+
+      declared_class = tokens[2];
+      if (declared_class in stateful)
+      {
+        is_stateful_file = 1;
+        break;
+      }
+    }
+
+    if (is_stateful_file)
+      violations = violations "\n" file "\n" state_mutation[file];
+  }
+
+  if (violations != "")
+  {
+    printf "%s", violations;
+    printf "Stateful GAgent implementations must not mutate State directly. Emit domain events and apply state in TransitionState/appliers.\n";
+    exit 1;
+  }
+}
+' 
+)"
+state_direct_mutation_status=$?
+set -e
+
+if [ "${state_direct_mutation_status}" -ne 0 ] && [ -z "${state_direct_mutation_report}" ]; then
+  echo "State direct mutation guard execution failed."
+  exit "${state_direct_mutation_status}"
+fi
+
+if [ -n "${state_direct_mutation_report}" ]; then
+  echo "${state_direct_mutation_report}"
+  exit 1
+fi
+
 if rg -n "IEventSourcingBehavior<>\\)\\.MakeGenericType|EventSourcingBehavior<>\\)\\.MakeGenericType|GetProperty\\(\"EventSourcing\"\\)|GetProperty\\(\"StateStore\"\\)" \
   src/Aevatar.Foundation.Runtime \
   src/Aevatar.Foundation.Runtime.Implementations.Orleans

From c340f0e6ba8b9001749f9cb1eb751329e26a8052 Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Mon, 23 Feb 2026 23:57:26 +0800
Subject: [PATCH 06/46] Add File-Based Event Store and Update Docker Compose
 for Providers

- Introduced a new `FileEventStore` for persistent event storage, allowing agents to maintain state across instances with optimistic concurrency checks.
- Added `FileEventStoreOptions` to configure the root directory for event storage.
- Updated `docker-compose.projection-providers.yml` to include Elasticsearch and Neo4j services, enhancing the development environment for testing projection providers.
- Implemented structured logging for write operations in both Elasticsearch and InMemory providers, improving observability.
- Enhanced tests for the new file-based event store and integration tests for Elasticsearch and Neo4j providers, ensuring robust functionality and reliability.
- Updated documentation to reflect the new event store capabilities and provider configurations, aiding developer understanding and usage.
---
 docker-compose.projection-providers.yml       |  23 +++
 docs/EVENT_SOURCING.md                        |   4 +-
 ...ng-elasticsearch-readmodel-requirements.md |  22 ++-
 .../ElasticsearchProjectionReadModelStore.cs  |  48 +++--
 .../ServiceCollectionExtensions.cs            |   6 +-
 .../README.md                                 |   1 +
 .../InMemoryProjectionReadModelStore.cs       |  88 +++++++--
 .../Stores/Neo4jProjectionReadModelStore.cs   |  48 +++--
 .../GAgentBase.TState.cs                      |   3 -
 src/Aevatar.Foundation.Core/README.md         |   6 +-
 .../ServiceCollectionExtensions.cs            |  16 ++
 .../Persistence/FileEventStore.cs             | 187 ++++++++++++++++++
 .../Persistence/FileEventStoreOptions.cs      |  15 ++
 src/Aevatar.Foundation.Runtime/README.md      |   9 +-
 .../Aevatar.CQRS.Projection.Core.Tests.csproj |   2 +
 .../ElasticsearchIntegrationFactAttribute.cs  |  13 ++
 .../Neo4jIntegrationFactAttribute.cs          |  15 ++
 .../ProjectionOwnershipAndSessionHubTests.cs  |  40 +++-
 .../ProjectionProviderE2EIntegrationTests.cs  | 114 +++++++++++
 .../FileEventStoreTests.cs                    | 133 +++++++++++++
 .../RuntimeEventStoreRegistrationTests.cs     |  30 +++
 .../WorkflowGAgentCoverageTests.cs            |  36 ++++
 tools/ci/architecture_guards.sh               |  58 ++++++
 tools/ci/projection_provider_e2e_smoke.sh     |  68 +++++++
 24 files changed, 923 insertions(+), 62 deletions(-)
 create mode 100644 docker-compose.projection-providers.yml
 create mode 100644 src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs
 create mode 100644 src/Aevatar.Foundation.Runtime/Persistence/FileEventStoreOptions.cs
 create mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchIntegrationFactAttribute.cs
 create mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/Neo4jIntegrationFactAttribute.cs
 create mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
 create mode 100644 test/Aevatar.Foundation.Core.Tests/FileEventStoreTests.cs
 create mode 100644 test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs
 create mode 100755 tools/ci/projection_provider_e2e_smoke.sh

diff --git a/docker-compose.projection-providers.yml b/docker-compose.projection-providers.yml
new file mode 100644
index 000000000..07137f708
--- /dev/null
+++ b/docker-compose.projection-providers.yml
@@ -0,0 +1,23 @@
+services:
+  elasticsearch:
+    image: docker.elastic.co/elasticsearch/elasticsearch:8.15.2
+    environment:
+      discovery.type: single-node
+      xpack.security.enabled: "false"
+      ES_JAVA_OPTS: "-Xms512m -Xmx512m"
+    ports:
+      - "9200:9200"
+      - "9300:9300"
+    restart: unless-stopped
+
+  neo4j:
+    image: neo4j:5.26
+    environment:
+      NEO4J_AUTH: "neo4j/password"
+      NEO4J_server_default__listen__address: "0.0.0.0"
+      NEO4J_server_memory_heap_initial__size: "256m"
+      NEO4J_server_memory_heap_max__size: "256m"
+    ports:
+      - "7474:7474"
+      - "7687:7687"
+    restart: unless-stopped
diff --git a/docs/EVENT_SOURCING.md b/docs/EVENT_SOURCING.md
index 210112193..4ea9036fb 100644
--- a/docs/EVENT_SOURCING.md
+++ b/docs/EVENT_SOURCING.md
@@ -7,7 +7,7 @@
 
 ## 2. 当前强制语义
 1. `EventStore` 是唯一业务事实源。
-2. `StateStore` 只能用于快照优化，不是业务真相。
+2. `GAgentBase<TState>` 不提供 `StateStore` 事实通道；恢复仅允许来自 EventStore Replay。
 3. 领域事件必须由开发者显式构建并持久化，不允许在线自动反推事件。
 4. 有状态 Actor 激活必须 Replay；停用必须 flush pending events。
 5. ES 行为构造走静态泛型路径，不走 Runtime 反射注入。
@@ -19,6 +19,7 @@
 - Typed applier 基类：`src/Aevatar.Foundation.Core/EventSourcing/StateEventApplierBase.cs`
 - 状态事件匹配器：`src/Aevatar.Foundation.Core/EventSourcing/StateTransitionMatcher.cs`
 - 有状态生命周期：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs`
+- 本地持久化 EventStore：`src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs`
 - Local Runtime 注入边界：`src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs`
 - Orleans Runtime 注入边界：`src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs`
 - 防回退门禁：`tools/ci/architecture_guards.sh`
@@ -62,6 +63,7 @@ public async Task Handle(IncrementRequested evt)
 
 ## 6. DI 与容器约定
 - `AddAevatarRuntime()` 默认注册 `IEventStore -> InMemoryEventStore`（开发/测试）。
+- 可通过 `AddFileEventStore(...)` 将 `IEventStore` 切换为本地持久化实现：`src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs`。
 - 生产环境应替换为持久化实现（Redis/DB/日志存储等）。
 - 如需自定义 ES 行为，可直接为 Agent 预设 `EventSourcing`，但必须保持相同语义契约。
 - 如需解耦 Agent 里的 `TransitionState` 逻辑，可注册多个 `IStateEventApplier<TState>`，按 `Order` 升序匹配应用。
diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index adfa6c4f2..50f119f2a 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -23,6 +23,7 @@
 - Typed 状态转换基类：`src/Aevatar.Foundation.Core/EventSourcing/StateEventApplierBase.cs`
 - 状态匹配器：`src/Aevatar.Foundation.Core/EventSourcing/StateTransitionMatcher.cs`
 - 生命周期：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs`
+- 本地持久化 EventStore 基线：`src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs`
 - 运行时注入边界：
   - `src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs`
   - `src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs`
@@ -30,11 +31,12 @@
 当前语义：
 1. `ActivateAsync` 强制 Replay 恢复状态。
 2. `DeactivateAsync` 强制 `ConfirmEventsAsync + PersistSnapshotAsync`。
-3. 未设置 `EventSourcing` 时，`GAgentBase<TState>` 在泛型上下文内用 `IEventStore` 静态构造 `AgentBackedEventSourcingBehavior`（继承 `EventSourcingBehavior<TState>`）。
-4. 缺失 `IEventStore` 时 fail-fast。
-5. `ConfirmDerivedEventsAsync` / `IDomainEventDeriver` / `EventSourcingAutoPersistenceOptions` 已从主链路移除。
-6. 运行期通过 `PersistDomainEventAsync` / `PersistDomainEventsAsync` 执行“持久化 + 顺序 apply”；Replay 主要用于激活恢复。
-7. `TransitionState` 可由 Agent override 或 `IStateEventApplier<TState>` 组合实现。
+3. `GAgentBase<TState>` 不再暴露 `StateStore` 事实通道。
+4. 未设置 `EventSourcing` 时，`GAgentBase<TState>` 在泛型上下文内用 `IEventStore` 静态构造 `AgentBackedEventSourcingBehavior`（继承 `EventSourcingBehavior<TState>`）。
+5. 缺失 `IEventStore` 时 fail-fast。
+6. `ConfirmDerivedEventsAsync` / `IDomainEventDeriver` / `EventSourcingAutoPersistenceOptions` 已从主链路移除。
+7. 运行期通过 `PersistDomainEventAsync` / `PersistDomainEventsAsync` 执行“持久化 + 顺序 apply”；Replay 主要用于激活恢复。
+8. `TransitionState` 可由 Agent override 或 `IStateEventApplier<TState>` 组合实现。
 
 ### 3.2 Provider Runtime
 - 抽象：`src/Aevatar.CQRS.Projection.Abstractions`
@@ -50,6 +52,10 @@
 2. Store 由 `ProviderRegistry + ProviderSelector + BindingResolver + StoreFactory` 统一创建。
 3. 多 Provider 并存时必须显式指定 provider；否则选择失败。
 4. 能力不匹配默认 fail-fast（`FailOnUnsupportedCapabilities=true`）。
+5. InMemory / Elasticsearch / Neo4j 写路径均输出统一结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
+6. Provider 端到端回归支持环境变量门控集成测试与一键 smoke 脚本：
+   - `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs`
+   - `tools/ci/projection_provider_e2e_smoke.sh`
 
 ### 3.3 Workflow 接入
 - 组合入口：`src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`
@@ -122,8 +128,8 @@
 4. 统一配置示例与错误合同说明（启动失败与能力不匹配）。
 
 ### P4（待执行）性能与生产化增强
-1. 为持久化 `IEventStore` 提供生产落地方案与压测基线。
-2. 补齐 Elasticsearch/Neo4j 端到端集成脚本与回归套件。
+1. 为持久化 `IEventStore` 提供生产落地方案与压测基线（已落地本地持久化基线：`FileEventStore`，生产级后端仍待接入）。
+2. 补齐 Elasticsearch/Neo4j 端到端集成脚本与回归套件（已落地基础 smoke + env-gated e2e，后续补 CI 常态化接入与更高负载回归）。
 3. 细化快照策略与回放窗口控制。
 
 ## 6. 验收标准（DoD）
@@ -136,8 +142,10 @@
 ## 7. 验证命令
 - `dotnet test test/Aevatar.Foundation.Core.Tests/Aevatar.Foundation.Core.Tests.csproj --nologo`
 - `dotnet test test/Aevatar.Foundation.Runtime.Hosting.Tests/Aevatar.Foundation.Runtime.Hosting.Tests.csproj --nologo`
+- `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
 - `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
 - `bash tools/ci/architecture_guards.sh`
+- `bash tools/ci/projection_provider_e2e_smoke.sh`
 
 ## 8. 变更原则
 1. 删除优先于兼容。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
index a7c9e41fa..77efa698f 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
@@ -78,11 +78,27 @@ public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationT
         ArgumentNullException.ThrowIfNull(mutate);
         ct.ThrowIfCancellationRequested();
 
+        var keyValue = FormatKey(key);
+        var startedAt = DateTimeOffset.UtcNow;
         var existing = await GetAsync(key, ct);
         if (existing == null)
-            throw new InvalidOperationException($"ReadModel '{typeof(TReadModel).FullName}' with key '{FormatKey(key)}' was not found.");
+        {
+            var notFound = new InvalidOperationException(
+                $"ReadModel '{typeof(TReadModel).FullName}' with key '{keyValue}' was not found.");
+            LogWriteFailure(keyValue, startedAt, notFound);
+            throw notFound;
+        }
+
+        try
+        {
+            mutate(existing);
+        }
+        catch (Exception ex)
+        {
+            LogWriteFailure(keyValue, startedAt, ex);
+            throw;
+        }
 
-        mutate(existing);
         await UpsertCoreAsync(existing, allowCreateIndex: true, ct);
     }
 
@@ -173,20 +189,28 @@ private async Task UpsertCoreAsync(TReadModel readModel, bool allowCreateIndex,
         }
         catch (Exception ex)
         {
-            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
-            _logger.LogError(
-                ex,
-                "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-                ProviderCapabilities.ProviderName,
-                typeof(TReadModel).FullName,
-                keyValue,
-                elapsedMs,
-                "failed",
-                ex.GetType().Name);
+            LogWriteFailure(keyValue, startedAt, ex);
             throw;
         }
     }
 
+    private void LogWriteFailure(
+        string keyValue,
+        DateTimeOffset startedAt,
+        Exception ex)
+    {
+        var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+        _logger.LogError(
+            ex,
+            "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
+            ProviderCapabilities.ProviderName,
+            typeof(TReadModel).FullName,
+            keyValue,
+            elapsedMs,
+            "failed",
+            ex.GetType().Name);
+    }
+
     private string ResolveReadModelKey(TReadModel readModel)
     {
         var key = _keySelector(readModel);
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index a81b50987..3aa3ea803 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -1,5 +1,6 @@
 using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
 
 namespace Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 
@@ -20,12 +21,13 @@ public static IServiceCollection AddInMemoryReadModelStoreRegistration<TReadMode
             new DelegateProjectionReadModelStoreRegistration<TReadModel, TKey>(
                 providerName,
                 new ProjectionReadModelProviderCapabilities(providerName, supportsIndexing: false),
-                _ => new InMemoryProjectionReadModelStore<TReadModel, TKey>(
+                provider => new InMemoryProjectionReadModelStore<TReadModel, TKey>(
                     keySelector,
                     keyFormatter,
                     listSortSelector,
                     listTakeMax,
-                    providerName)));
+                    providerName,
+                    provider.GetService<ILogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>>())));
 
         return services;
     }
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
index d808968d4..68c950386 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
@@ -5,6 +5,7 @@
 - 不依赖业务域模型。
 - 支持按 keySelector 注册任意 `IProjectionReadModelStore<TReadModel, TKey>`。
 - 默认能力：非索引型（`SupportsIndexing=false`）。
+- 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
 
 ## DI 注册
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
index e54490f52..9f33f36cb 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
@@ -1,4 +1,6 @@
 using System.Text.Json;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
 
 namespace Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 
@@ -13,6 +15,7 @@ public sealed class InMemoryProjectionReadModelStore<TReadModel, TKey>
     private readonly Func<TKey, string> _keyFormatter;
     private readonly Func<TReadModel, object?>? _listSortSelector;
     private readonly int _listTakeMax;
+    private readonly ILogger<InMemoryProjectionReadModelStore<TReadModel, TKey>> _logger;
     private readonly JsonSerializerOptions _jsonOptions = new();
 
     public InMemoryProjectionReadModelStore(
@@ -20,13 +23,15 @@ public InMemoryProjectionReadModelStore(
         Func<TKey, string>? keyFormatter = null,
         Func<TReadModel, object?>? listSortSelector = null,
         int listTakeMax = 200,
-        string providerName = ProjectionReadModelProviderNames.InMemory)
+        string providerName = ProjectionReadModelProviderNames.InMemory,
+        ILogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>? logger = null)
     {
         ArgumentNullException.ThrowIfNull(keySelector);
         _keySelector = keySelector;
         _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
         _listSortSelector = listSortSelector;
         _listTakeMax = listTakeMax > 0 ? listTakeMax : 200;
+        _logger = logger ?? NullLogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>.Instance;
         ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
             providerName,
             supportsIndexing: false);
@@ -39,11 +44,38 @@ public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
         ArgumentNullException.ThrowIfNull(readModel);
         ct.ThrowIfCancellationRequested();
 
-        var key = ResolveReadModelKey(readModel);
-        lock (_gate)
-            _itemsByKey[key] = Clone(readModel);
-
-        return Task.CompletedTask;
+        var key = "";
+        var startedAt = DateTimeOffset.UtcNow;
+        try
+        {
+            key = ResolveReadModelKey(readModel);
+            lock (_gate)
+                _itemsByKey[key] = Clone(readModel);
+
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogInformation(
+                "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
+                ProviderCapabilities.ProviderName,
+                typeof(TReadModel).FullName,
+                key,
+                elapsedMs,
+                "ok");
+            return Task.CompletedTask;
+        }
+        catch (Exception ex)
+        {
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogError(
+                ex,
+                "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
+                ProviderCapabilities.ProviderName,
+                typeof(TReadModel).FullName,
+                key,
+                elapsedMs,
+                "failed",
+                ex.GetType().Name);
+            throw;
+        }
     }
 
     public Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
@@ -51,17 +83,43 @@ public Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken c
         ArgumentNullException.ThrowIfNull(mutate);
         ct.ThrowIfCancellationRequested();
 
-        lock (_gate)
+        var keyValue = FormatKey(key);
+        var startedAt = DateTimeOffset.UtcNow;
+        try
         {
-            var keyValue = FormatKey(key);
-            if (!_itemsByKey.TryGetValue(keyValue, out var existing))
-                throw new InvalidOperationException(
-                    $"ReadModel '{typeof(TReadModel).FullName}' with key '{keyValue}' was not found.");
-
-            mutate(existing);
+            lock (_gate)
+            {
+                if (!_itemsByKey.TryGetValue(keyValue, out var existing))
+                    throw new InvalidOperationException(
+                        $"ReadModel '{typeof(TReadModel).FullName}' with key '{keyValue}' was not found.");
+
+                mutate(existing);
+            }
+
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogInformation(
+                "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
+                ProviderCapabilities.ProviderName,
+                typeof(TReadModel).FullName,
+                keyValue,
+                elapsedMs,
+                "ok");
+            return Task.CompletedTask;
+        }
+        catch (Exception ex)
+        {
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogError(
+                ex,
+                "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
+                ProviderCapabilities.ProviderName,
+                typeof(TReadModel).FullName,
+                keyValue,
+                elapsedMs,
+                "failed",
+                ex.GetType().Name);
+            throw;
         }
-
-        return Task.CompletedTask;
     }
 
     public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
index d255ac9d6..3e1fe3138 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
@@ -100,16 +100,7 @@ public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = defau
         }
         catch (Exception ex)
         {
-            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
-            _logger.LogError(
-                ex,
-                "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-                ProviderCapabilities.ProviderName,
-                typeof(TReadModel).FullName,
-                key,
-                elapsedMs,
-                "failed",
-                ex.GetType().Name);
+            LogWriteFailure(key, startedAt, ex);
             throw;
         }
     }
@@ -119,11 +110,27 @@ public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationT
         ArgumentNullException.ThrowIfNull(mutate);
         ct.ThrowIfCancellationRequested();
 
+        var keyValue = FormatKey(key);
+        var startedAt = DateTimeOffset.UtcNow;
         var existing = await GetAsync(key, ct);
         if (existing == null)
-            throw new InvalidOperationException($"ReadModel '{typeof(TReadModel).FullName}' with key '{FormatKey(key)}' was not found.");
+        {
+            var notFound = new InvalidOperationException(
+                $"ReadModel '{typeof(TReadModel).FullName}' with key '{keyValue}' was not found.");
+            LogWriteFailure(keyValue, startedAt, notFound);
+            throw notFound;
+        }
+
+        try
+        {
+            mutate(existing);
+        }
+        catch (Exception ex)
+        {
+            LogWriteFailure(keyValue, startedAt, ex);
+            throw;
+        }
 
-        mutate(existing);
         await UpsertAsync(existing, ct);
     }
 
@@ -256,6 +263,23 @@ private string ResolveReadModelKey(TReadModel readModel)
 
     private string FormatKey(TKey key) => _keyFormatter(key)?.Trim() ?? "";
 
+    private void LogWriteFailure(
+        string key,
+        DateTimeOffset startedAt,
+        Exception ex)
+    {
+        var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+        _logger.LogError(
+            ex,
+            "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
+            ProviderCapabilities.ProviderName,
+            typeof(TReadModel).FullName,
+            key,
+            elapsedMs,
+            "failed",
+            ex.GetType().Name);
+    }
+
     private TReadModel? Deserialize(string payload)
     {
         var value = JsonSerializer.Deserialize<TReadModel>(payload, _jsonOptions);
diff --git a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
index f1054f731..c0fb52182 100644
--- a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
+++ b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
@@ -28,9 +28,6 @@ public TState State
         protected set { StateGuard.EnsureWritable(); _state = value; }
     }
 
-    /// <summary>State persistence store reserved for snapshot optimization.</summary>
-    public IStateStore<TState>? StateStore { get; set; }
-
     /// <summary>Event Sourcing behavior injected by runtime; required for state recovery and commit.</summary>
     public IEventSourcingBehavior<TState>? EventSourcing { get; set; }
 
diff --git a/src/Aevatar.Foundation.Core/README.md b/src/Aevatar.Foundation.Core/README.md
index 94198914c..4b059597b 100644
--- a/src/Aevatar.Foundation.Core/README.md
+++ b/src/Aevatar.Foundation.Core/README.md
@@ -12,7 +12,7 @@
 ## 核心类型
 
 - `GAgentBase`：无状态基类，统一事件分发、模块管理、Hook 生命周期
-- `GAgentBase<TState>`：状态型基类，集成 `IStateStore<TState>`
+- `GAgentBase<TState>`：状态型基类，内建 EventSourcing 生命周期（Replay 恢复 + 事件提交）
 - `GAgentBase<TState, TConfig>`：配置型基类，配置持久化到 manifest
 - `StateGuard`：限制状态写入时机
 - `EventPipelineBuilder`：合并并排序静态/动态处理器
@@ -23,11 +23,11 @@
 ## 典型流程
 
 1. Runtime 创建 Agent 并注入依赖
-2. Agent 激活时恢复模块、状态和配置
+2. Agent 激活时恢复模块、配置，并通过 EventStore Replay 恢复状态
 3. 事件到达后以 Raw `EventEnvelope` 构建统一 Pipeline
 4. 按优先级依次执行处理器，并触发 Hook
 5. 出站事件按传播策略自动继承 `correlation_id` 并写入 `metadata["trace.causation_id"]`
-6. Agent 停用时保存状态
+6. Agent 停用时 flush pending events，并按策略持久化快照（可选）
 
 ## 依赖
 
diff --git a/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index 1c1a7a2ca..e046b30ba 100644
--- a/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -77,4 +77,20 @@ public static IServiceCollection AddAevatarRuntime(
 
         return services;
     }
+
+    /// <summary>
+    /// Replaces <see cref="IEventStore"/> with file-backed persistence.
+    /// </summary>
+    public static IServiceCollection AddFileEventStore(
+        this IServiceCollection services,
+        Action<FileEventStoreOptions>? configure = null)
+    {
+        ArgumentNullException.ThrowIfNull(services);
+
+        var options = new FileEventStoreOptions();
+        configure?.Invoke(options);
+        services.Replace(ServiceDescriptor.Singleton(options));
+        services.Replace(ServiceDescriptor.Singleton<IEventStore, FileEventStore>());
+        return services;
+    }
 }
diff --git a/src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs b/src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs
new file mode 100644
index 000000000..d6d25ad74
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs
@@ -0,0 +1,187 @@
+using System.Collections.Concurrent;
+using System.Text;
+using Aevatar.Foundation.Abstractions.Persistence;
+using Google.Protobuf;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.Foundation.Runtime.Persistence;
+
+/// <summary>
+/// File-backed event store.
+/// Stores each agent stream in a local file with optimistic concurrency checks.
+/// </summary>
+public sealed class FileEventStore : IEventStore
+{
+    private readonly string _rootDirectory;
+    private readonly ConcurrentDictionary<string, SemaphoreSlim> _agentLocks = new(StringComparer.Ordinal);
+    private readonly ILogger<FileEventStore> _logger;
+
+    public FileEventStore(
+        FileEventStoreOptions? options = null,
+        ILogger<FileEventStore>? logger = null)
+    {
+        options ??= new FileEventStoreOptions();
+        if (string.IsNullOrWhiteSpace(options.RootDirectory))
+        {
+            throw new InvalidOperationException(
+                "FileEventStore requires a non-empty root directory.");
+        }
+
+        _rootDirectory = Path.GetFullPath(options.RootDirectory);
+        Directory.CreateDirectory(_rootDirectory);
+        _logger = logger ?? NullLogger<FileEventStore>.Instance;
+    }
+
+    public async Task<long> AppendAsync(
+        string agentId,
+        IEnumerable<StateEvent> events,
+        long expectedVersion,
+        CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ArgumentNullException.ThrowIfNull(events);
+        ct.ThrowIfCancellationRequested();
+
+        var pendingEvents = events.Select(CloneEvent).ToList();
+        if (pendingEvents.Count == 0)
+            return await GetVersionAsync(agentId, ct);
+
+        var gate = _agentLocks.GetOrAdd(agentId, static _ => new SemaphoreSlim(1, 1));
+        await gate.WaitAsync(ct);
+
+        try
+        {
+            var stream = ReadStream(agentId, ct);
+            var currentVersion = stream.Count == 0 ? 0 : stream[^1].Version;
+            if (currentVersion != expectedVersion)
+            {
+                throw new InvalidOperationException(
+                    $"Optimistic concurrency conflict: expected {expectedVersion}, actual {currentVersion}");
+            }
+
+            stream.AddRange(pendingEvents);
+            WriteStream(agentId, stream, ct);
+
+            var latestVersion = stream[^1].Version;
+            _logger.LogDebug(
+                "File event-store append completed. agentId={AgentId} appended={Count} version={Version}",
+                agentId,
+                pendingEvents.Count,
+                latestVersion);
+            return latestVersion;
+        }
+        finally
+        {
+            gate.Release();
+        }
+    }
+
+    public async Task<IReadOnlyList<StateEvent>> GetEventsAsync(
+        string agentId,
+        long? fromVersion = null,
+        CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ct.ThrowIfCancellationRequested();
+
+        var gate = _agentLocks.GetOrAdd(agentId, static _ => new SemaphoreSlim(1, 1));
+        await gate.WaitAsync(ct);
+
+        try
+        {
+            var stream = ReadStream(agentId, ct);
+            var filtered = fromVersion.HasValue
+                ? stream.Where(x => x.Version > fromVersion.Value)
+                : stream;
+            return filtered.Select(CloneEvent).ToList();
+        }
+        finally
+        {
+            gate.Release();
+        }
+    }
+
+    public async Task<long> GetVersionAsync(string agentId, CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ct.ThrowIfCancellationRequested();
+
+        var gate = _agentLocks.GetOrAdd(agentId, static _ => new SemaphoreSlim(1, 1));
+        await gate.WaitAsync(ct);
+
+        try
+        {
+            var stream = ReadStream(agentId, ct);
+            return stream.Count == 0 ? 0 : stream[^1].Version;
+        }
+        finally
+        {
+            gate.Release();
+        }
+    }
+
+    private List<StateEvent> ReadStream(string agentId, CancellationToken ct)
+    {
+        var path = GetStreamPath(agentId);
+        if (!File.Exists(path))
+            return [];
+
+        var result = new List<StateEvent>();
+        using var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
+        using var reader = new BinaryReader(stream, Encoding.UTF8, leaveOpen: false);
+
+        while (stream.Position < stream.Length)
+        {
+            ct.ThrowIfCancellationRequested();
+            var payloadLength = reader.ReadInt32();
+            if (payloadLength <= 0)
+            {
+                throw new InvalidOperationException(
+                    $"Corrupted event stream for agent '{agentId}': invalid payload length {payloadLength}.");
+            }
+
+            var payload = reader.ReadBytes(payloadLength);
+            if (payload.Length != payloadLength)
+            {
+                throw new InvalidOperationException(
+                    $"Corrupted event stream for agent '{agentId}': truncated payload.");
+            }
+
+            result.Add(StateEvent.Parser.ParseFrom(payload));
+        }
+
+        return result;
+    }
+
+    private void WriteStream(string agentId, IReadOnlyList<StateEvent> stream, CancellationToken ct)
+    {
+        var path = GetStreamPath(agentId);
+        var tempPath = path + ".tmp";
+
+        using (var fileStream = new FileStream(tempPath, FileMode.Create, FileAccess.Write, FileShare.None))
+        using (var writer = new BinaryWriter(fileStream, Encoding.UTF8, leaveOpen: false))
+        {
+            foreach (var evt in stream)
+            {
+                ct.ThrowIfCancellationRequested();
+                var payload = evt.ToByteArray();
+                writer.Write(payload.Length);
+                writer.Write(payload);
+            }
+        }
+
+        File.Move(tempPath, path, overwrite: true);
+    }
+
+    private string GetStreamPath(string agentId)
+    {
+        var encoded = Convert.ToBase64String(Encoding.UTF8.GetBytes(agentId))
+            .Replace('+', '-')
+            .Replace('/', '_')
+            .TrimEnd('=');
+        return Path.Combine(_rootDirectory, encoded + ".events");
+    }
+
+    private static StateEvent CloneEvent(StateEvent evt) => evt.Clone();
+}
diff --git a/src/Aevatar.Foundation.Runtime/Persistence/FileEventStoreOptions.cs b/src/Aevatar.Foundation.Runtime/Persistence/FileEventStoreOptions.cs
new file mode 100644
index 000000000..c712f98cb
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime/Persistence/FileEventStoreOptions.cs
@@ -0,0 +1,15 @@
+namespace Aevatar.Foundation.Runtime.Persistence;
+
+/// <summary>
+/// File-backed event-store options.
+/// </summary>
+public sealed class FileEventStoreOptions
+{
+    /// <summary>
+    /// Root directory used to persist per-agent event streams.
+    /// </summary>
+    public string RootDirectory { get; set; } = Path.Combine(
+        AppContext.BaseDirectory,
+        ".aevatar",
+        "event-store");
+}
diff --git a/src/Aevatar.Foundation.Runtime/README.md b/src/Aevatar.Foundation.Runtime/README.md
index 2c34a9f49..265aa5687 100644
--- a/src/Aevatar.Foundation.Runtime/README.md
+++ b/src/Aevatar.Foundation.Runtime/README.md
@@ -8,7 +8,7 @@
 
 - **组织 Agent**：按父子关系把 Agent 排成一棵树（例如一个工作流根节点 + 多个角色子节点）。
 - **传递事件**：把「用户输入」「步骤请求」「LLM 回复」等事件准确送到对应的 Agent。
-- **存储与去重**：在内存（或可替换的存储）里保存 Agent 状态、事件记录、路由关系，并做事件去重。
+- **存储与去重**：在内存（或可替换的存储）里保存事件记录、路由关系与 Manifest，并做事件去重。
 - **流式输出**：把运行过程以流的形式推送给调用方（例如 SSE）。
 
 你不需要直接写 .NET 代码也能用 Aevatar；使用 **Aevatar.Workflow.Host.Api** 的 HTTP 接口即可。Runtime 主要面向「想理解系统结构」或「要二次开发、替换实现」的读者。
@@ -22,7 +22,7 @@
 | **Actor 运行时** | `Actor/` | 创建和管理「Actor」（每个 Actor 里挂一个 Agent），提供本地实现 `LocalActorRuntime`。 |
 | **事件流** | `Streaming/` | 内存版事件流与订阅，用于把运行中的事件推送给前端或下游。 |
 | **路由** | `Routing/` | 维护 Agent 树的父子关系，按「方向」把事件发给当前节点、父节点或子节点。 |
-| **持久化** | `Persistence/` | 状态存储、事件存储、Agent 配置（Manifest）的默认内存实现；可换成数据库等。 |
+| **持久化** | `Persistence/` | 事件存储（EventStore）与 Agent 配置（Manifest）的默认实现；可替换为持久化后端。 |
 | **依赖注入** | `DependencyInjection/` | 一行配置注册整个运行时（`AddAevatarRuntime()`），供宿主程序使用。 |
 
 ---
@@ -34,7 +34,7 @@ Runtime/
 ├── Actor/               # 单个 Actor、事件发布、运行时入口
 ├── Streaming/           # 内存流与订阅（如 SSE 推送）
 ├── Routing/             # 事件路由与层级存储
-├── Persistence/         # 状态、事件、Manifest 的内存实现与去重
+├── Persistence/         # EventStore、Manifest 与去重
 ├── Context/             # 运行上下文
 ├── Observability/       # 可观测性（如指标）
 └── DependencyInjection/ # 运行时注册入口
@@ -61,8 +61,7 @@ Runtime 维护一棵 **Agent 树**（父/子关系）。每个事件带一个**
 
 当前默认实现都是**内存**的，适合开发、演示和单机部署：
 
-- **状态存储**：Agent 的状态快照（如对话计数、工作流进度）。
-- **事件存储**：若开启 Event Sourcing，用于保存事件流。
+- **事件存储**：Event Sourcing 事实源，默认 `InMemoryEventStore`，可替换为 `FileEventStore`。
 - **Manifest**：Agent 的配置与已挂载的模块列表。
 - **路由层级**：父子关系。
 
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj b/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
index 9145f0f38..3e769d0e1 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
@@ -13,6 +13,8 @@
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.StateMirror\Aevatar.CQRS.Projection.StateMirror.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Providers.Neo4j\Aevatar.CQRS.Projection.Providers.Neo4j.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.Foundation.Abstractions\Aevatar.Foundation.Abstractions.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchIntegrationFactAttribute.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchIntegrationFactAttribute.cs
new file mode 100644
index 000000000..9f96d9710
--- /dev/null
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchIntegrationFactAttribute.cs
@@ -0,0 +1,13 @@
+namespace Aevatar.CQRS.Projection.Core.Tests;
+
+[AttributeUsage(AttributeTargets.Method, AllowMultiple = false)]
+public sealed class ElasticsearchIntegrationFactAttribute : FactAttribute
+{
+    public ElasticsearchIntegrationFactAttribute()
+    {
+        if (string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable("AEVATAR_TEST_ELASTICSEARCH_ENDPOINT")))
+        {
+            Skip = "Set AEVATAR_TEST_ELASTICSEARCH_ENDPOINT to run Elasticsearch projection integration tests.";
+        }
+    }
+}
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/Neo4jIntegrationFactAttribute.cs b/test/Aevatar.CQRS.Projection.Core.Tests/Neo4jIntegrationFactAttribute.cs
new file mode 100644
index 000000000..5e22cf55a
--- /dev/null
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/Neo4jIntegrationFactAttribute.cs
@@ -0,0 +1,15 @@
+namespace Aevatar.CQRS.Projection.Core.Tests;
+
+[AttributeUsage(AttributeTargets.Method, AllowMultiple = false)]
+public sealed class Neo4jIntegrationFactAttribute : FactAttribute
+{
+    public Neo4jIntegrationFactAttribute()
+    {
+        if (string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable("AEVATAR_TEST_NEO4J_URI")) ||
+            string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable("AEVATAR_TEST_NEO4J_USERNAME")) ||
+            string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable("AEVATAR_TEST_NEO4J_PASSWORD")))
+        {
+            Skip = "Set AEVATAR_TEST_NEO4J_URI / AEVATAR_TEST_NEO4J_USERNAME / AEVATAR_TEST_NEO4J_PASSWORD to run Neo4j projection integration tests.";
+        }
+    }
+}
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
index 9f0762d3b..25d80de7b 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
@@ -134,10 +134,13 @@ private static ActorProjectionOwnershipCoordinator CreateCoordinator(
 
 public class ProjectionOwnershipCoordinatorGAgentTests
 {
-    private static IServiceProvider CreateStatefulAgentServices()
+    private static IServiceProvider CreateStatefulAgentServices(IEventStore? eventStore = null)
     {
         var services = new ServiceCollection();
-        services.AddSingleton<IEventStore, TestInMemoryEventStore>();
+        if (eventStore != null)
+            services.AddSingleton(eventStore);
+        else
+            services.AddSingleton<IEventStore, TestInMemoryEventStore>();
         return services.BuildServiceProvider();
     }
 
@@ -215,6 +218,39 @@ await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
 
         await act.Should().ThrowAsync<InvalidOperationException>();
     }
+
+    [Fact]
+    public async Task AcquireRelease_ShouldPersistEvents_AndReplayStateAfterReactivate()
+    {
+        var store = new TestInMemoryEventStore();
+        var services = CreateStatefulAgentServices(store);
+
+        var agent1 = new ProjectionOwnershipCoordinatorGAgent { Services = services };
+        await agent1.ActivateAsync();
+        await agent1.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
+        {
+            ScopeId = "scope-replay",
+            SessionId = "session-replay",
+        });
+        await agent1.HandleReleaseAsync(new ProjectionOwnershipReleaseEvent
+        {
+            ScopeId = "scope-replay",
+            SessionId = "session-replay",
+        });
+        await agent1.DeactivateAsync();
+
+        var persisted = await store.GetEventsAsync(agent1.Id);
+        persisted.Should().HaveCount(2);
+        persisted.Should().Contain(x => x.EventType.Contains(nameof(ProjectionOwnershipAcquireEvent), StringComparison.Ordinal));
+        persisted.Should().Contain(x => x.EventType.Contains(nameof(ProjectionOwnershipReleaseEvent), StringComparison.Ordinal));
+
+        var agent2 = new ProjectionOwnershipCoordinatorGAgent { Services = services };
+        await agent2.ActivateAsync();
+
+        agent2.State.Active.Should().BeFalse();
+        agent2.State.ScopeId.Should().Be("scope-replay");
+        agent2.State.SessionId.Should().BeEmpty();
+    }
 }
 
 public class ProjectionSessionEventHubTests
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
new file mode 100644
index 000000000..37a5de16b
--- /dev/null
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
@@ -0,0 +1,114 @@
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
+using Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
+using FluentAssertions;
+
+namespace Aevatar.CQRS.Projection.Core.Tests;
+
+public sealed class ProjectionProviderE2EIntegrationTests
+{
+    [ElasticsearchIntegrationFact]
+    public async Task ElasticsearchStore_ShouldRoundtripUpsertAndMutate()
+    {
+        var endpoint = GetRequiredEnvironmentVariable("AEVATAR_TEST_ELASTICSEARCH_ENDPOINT");
+        var options = new ElasticsearchProjectionReadModelStoreOptions
+        {
+            Endpoints = [endpoint],
+            IndexPrefix = "aevatar-e2e",
+            AutoCreateIndex = true,
+            RequestTimeoutMs = 10000,
+        };
+        var indexScope = "projection-provider-e2e-" + Guid.NewGuid().ToString("N");
+        using var store = new ElasticsearchProjectionReadModelStore<ProviderStoreSmokeReadModel, string>(
+            options,
+            indexScope,
+            model => model.Id);
+
+        var readModel = new ProviderStoreSmokeReadModel
+        {
+            Id = Guid.NewGuid().ToString("N"),
+            Value = "v1",
+            UpdatedAtEpochMs = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds(),
+        };
+
+        await store.UpsertAsync(readModel);
+        var fetched = await store.GetAsync(readModel.Id);
+        fetched.Should().NotBeNull();
+        fetched!.Value.Should().Be("v1");
+
+        await store.MutateAsync(readModel.Id, model =>
+        {
+            model.Value = "v2";
+            model.UpdatedAtEpochMs = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+        });
+
+        var mutated = await store.GetAsync(readModel.Id);
+        mutated.Should().NotBeNull();
+        mutated!.Value.Should().Be("v2");
+    }
+
+    [Neo4jIntegrationFact]
+    public async Task Neo4jStore_ShouldRoundtripUpsertMutateAndList()
+    {
+        var uri = GetRequiredEnvironmentVariable("AEVATAR_TEST_NEO4J_URI");
+        var username = GetRequiredEnvironmentVariable("AEVATAR_TEST_NEO4J_USERNAME");
+        var password = GetRequiredEnvironmentVariable("AEVATAR_TEST_NEO4J_PASSWORD");
+        var options = new Neo4jProjectionReadModelStoreOptions
+        {
+            Uri = uri,
+            Username = username,
+            Password = password,
+            NodeLabel = "ProjectionReadModelE2E",
+            AutoCreateConstraints = true,
+            RequestTimeoutMs = 5000,
+        };
+        var scope = "projection-provider-e2e-" + Guid.NewGuid().ToString("N");
+        await using var store = new Neo4jProjectionReadModelStore<ProviderStoreSmokeReadModel, string>(
+            options,
+            scope,
+            model => model.Id);
+
+        var readModel = new ProviderStoreSmokeReadModel
+        {
+            Id = Guid.NewGuid().ToString("N"),
+            Value = "v1",
+            UpdatedAtEpochMs = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds(),
+        };
+
+        await store.UpsertAsync(readModel);
+        var fetched = await store.GetAsync(readModel.Id);
+        fetched.Should().NotBeNull();
+        fetched!.Value.Should().Be("v1");
+
+        await store.MutateAsync(readModel.Id, model =>
+        {
+            model.Value = "v2";
+            model.UpdatedAtEpochMs = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+        });
+        var mutated = await store.GetAsync(readModel.Id);
+        mutated.Should().NotBeNull();
+        mutated!.Value.Should().Be("v2");
+
+        var listed = await store.ListAsync(20);
+        listed.Select(model => model.Id).Should().Contain(readModel.Id);
+    }
+
+    private static string GetRequiredEnvironmentVariable(string name)
+    {
+        var value = Environment.GetEnvironmentVariable(name);
+        if (!string.IsNullOrWhiteSpace(value))
+            return value.Trim();
+
+        throw new InvalidOperationException($"Environment variable '{name}' is required.");
+    }
+
+    private sealed class ProviderStoreSmokeReadModel
+    {
+        public string Id { get; set; } = "";
+
+        public string Value { get; set; } = "";
+
+        public long UpdatedAtEpochMs { get; set; }
+    }
+}
diff --git a/test/Aevatar.Foundation.Core.Tests/FileEventStoreTests.cs b/test/Aevatar.Foundation.Core.Tests/FileEventStoreTests.cs
new file mode 100644
index 000000000..8e0882a9e
--- /dev/null
+++ b/test/Aevatar.Foundation.Core.Tests/FileEventStoreTests.cs
@@ -0,0 +1,133 @@
+using Aevatar.Foundation.Abstractions.Helpers;
+using Aevatar.Foundation.Runtime.Persistence;
+using Shouldly;
+
+namespace Aevatar.Foundation.Core.Tests;
+
+public class FileEventStoreTests
+{
+    [Fact]
+    public async Task AppendAndRead_ShouldPersistAcrossStoreInstances()
+    {
+        var root = CreateTempRoot();
+        try
+        {
+            var store1 = new FileEventStore(new FileEventStoreOptions { RootDirectory = root });
+            var appendedVersion = await store1.AppendAsync("agent-1",
+            [
+                new StateEvent
+                {
+                    EventId = "e1",
+                    Timestamp = TimestampHelper.Now(),
+                    Version = 1,
+                    EventType = "evt-1",
+                    AgentId = "agent-1",
+                },
+                new StateEvent
+                {
+                    EventId = "e2",
+                    Timestamp = TimestampHelper.Now(),
+                    Version = 2,
+                    EventType = "evt-2",
+                    AgentId = "agent-1",
+                },
+            ],
+            expectedVersion: 0);
+
+            appendedVersion.ShouldBe(2);
+
+            var store2 = new FileEventStore(new FileEventStoreOptions { RootDirectory = root });
+            var events = await store2.GetEventsAsync("agent-1");
+            var version = await store2.GetVersionAsync("agent-1");
+
+            events.Count.ShouldBe(2);
+            events[0].EventId.ShouldBe("e1");
+            events[1].EventId.ShouldBe("e2");
+            version.ShouldBe(2);
+        }
+        finally
+        {
+            SafeDelete(root);
+        }
+    }
+
+    [Fact]
+    public async Task AppendAsync_WithVersionConflict_ShouldThrow()
+    {
+        var root = CreateTempRoot();
+        try
+        {
+            var store = new FileEventStore(new FileEventStoreOptions { RootDirectory = root });
+            await store.AppendAsync("agent-1",
+            [
+                new StateEvent
+                {
+                    EventId = "e1",
+                    Timestamp = TimestampHelper.Now(),
+                    Version = 1,
+                    EventType = "evt-1",
+                    AgentId = "agent-1",
+                },
+            ],
+            expectedVersion: 0);
+
+            var act = () => store.AppendAsync("agent-1",
+            [
+                new StateEvent
+                {
+                    EventId = "e2",
+                    Timestamp = TimestampHelper.Now(),
+                    Version = 2,
+                    EventType = "evt-2",
+                    AgentId = "agent-1",
+                },
+            ],
+            expectedVersion: 0);
+
+            await act.ShouldThrowAsync<InvalidOperationException>();
+        }
+        finally
+        {
+            SafeDelete(root);
+        }
+    }
+
+    [Fact]
+    public async Task GetEventsAsync_FromVersion_ShouldReturnOnlyNewerEvents()
+    {
+        var root = CreateTempRoot();
+        try
+        {
+            var store = new FileEventStore(new FileEventStoreOptions { RootDirectory = root });
+            await store.AppendAsync("agent-1",
+                Enumerable.Range(1, 5).Select(i => new StateEvent
+                {
+                    EventId = $"e{i}",
+                    Timestamp = TimestampHelper.Now(),
+                    Version = i,
+                    EventType = "evt",
+                    AgentId = "agent-1",
+                }),
+                expectedVersion: 0);
+
+            var events = await store.GetEventsAsync("agent-1", fromVersion: 3);
+
+            events.Count.ShouldBe(2);
+            events[0].Version.ShouldBe(4);
+            events[1].Version.ShouldBe(5);
+        }
+        finally
+        {
+            SafeDelete(root);
+        }
+    }
+
+    private static string CreateTempRoot() =>
+        Path.Combine(Path.GetTempPath(), "aevatar-eventstore-tests", Guid.NewGuid().ToString("N"));
+
+    private static void SafeDelete(string path)
+    {
+        if (Directory.Exists(path))
+            Directory.Delete(path, recursive: true);
+    }
+}
diff --git a/test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs b/test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs
new file mode 100644
index 000000000..e861eb91e
--- /dev/null
+++ b/test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs
@@ -0,0 +1,30 @@
+using Aevatar.Foundation.Abstractions.Persistence;
+using Microsoft.Extensions.DependencyInjection;
+using Shouldly;
+
+namespace Aevatar.Foundation.Core.Tests;
+
+public class RuntimeEventStoreRegistrationTests
+{
+    [Fact]
+    public void AddFileEventStore_ShouldReplaceDefaultInMemoryEventStore()
+    {
+        var root = Path.Combine(Path.GetTempPath(), "aevatar-eventstore-registration-tests", Guid.NewGuid().ToString("N"));
+        try
+        {
+            var services = new ServiceCollection();
+            services.AddAevatarRuntime();
+            services.AddFileEventStore(options => options.RootDirectory = root);
+
+            using var provider = services.BuildServiceProvider();
+            var eventStore = provider.GetRequiredService<IEventStore>();
+
+            eventStore.ShouldBeOfType<FileEventStore>();
+        }
+        finally
+        {
+            if (Directory.Exists(root))
+                Directory.Delete(root, recursive: true);
+        }
+    }
+}
diff --git a/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs b/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs
index 30948a6db..c00296206 100644
--- a/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs
+++ b/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs
@@ -150,6 +150,42 @@ await agent.HandleWorkflowCompleted(new WorkflowCompletedEvent
         outputs.Should().Contain(x => x.Contains("失败") && x.Contains("boom"));
     }
 
+    [Fact]
+    public async Task ConfigureAndCompletionEvents_ShouldPersistAndReplayAfterReactivate()
+    {
+        var sharedEventStore = new InMemoryEventStore();
+
+        var agent1 = CreateAgent(eventStore: sharedEventStore);
+        await agent1.ActivateAsync();
+        await agent1.ConfigureWorkflowAsync(BuildValidWorkflowYaml("role_a", "RoleA"), "wf_replay");
+        await agent1.HandleWorkflowCompleted(new WorkflowCompletedEvent
+        {
+            WorkflowName = "wf_replay",
+            Success = true,
+            Output = "ok",
+        });
+        await agent1.HandleWorkflowCompleted(new WorkflowCompletedEvent
+        {
+            WorkflowName = "wf_replay",
+            Success = false,
+            Error = "err",
+        });
+        await agent1.DeactivateAsync();
+
+        var persisted = await sharedEventStore.GetEventsAsync(agent1.Id);
+        persisted.Should().HaveCount(3);
+        persisted.Should().Contain(x => x.EventType.Contains(nameof(ConfigureWorkflowEvent), StringComparison.Ordinal));
+        persisted.Count(x => x.EventType.Contains(nameof(WorkflowCompletedEvent), StringComparison.Ordinal)).Should().Be(2);
+
+        var agent2 = CreateAgent(eventStore: sharedEventStore);
+        await agent2.ActivateAsync();
+
+        agent2.State.Compiled.Should().BeTrue();
+        agent2.State.TotalExecutions.Should().Be(2);
+        agent2.State.SuccessfulExecutions.Should().Be(1);
+        agent2.State.FailedExecutions.Should().Be(1);
+    }
+
     [Fact]
     public async Task ConfigureWorkflow_ShouldInstallAndConfigureModules()
     {
diff --git a/tools/ci/architecture_guards.sh b/tools/ci/architecture_guards.sh
index 4c3cd8a99..01bc1a2eb 100755
--- a/tools/ci/architecture_guards.sh
+++ b/tools/ci/architecture_guards.sh
@@ -92,6 +92,11 @@ if rg -n "StateStore\.LoadAsync|StateStore\.SaveAsync" src/Aevatar.Foundation.Co
   exit 1
 fi
 
+if rg -n "public\s+IStateStore<" src/Aevatar.Foundation.Core/GAgentBase.TState.cs; then
+  echo "GAgentBase<TState> must not expose IStateStore property. Recovery/writes must go through EventStore semantics."
+  exit 1
+fi
+
 set +e
 state_direct_mutation_report="$(
   rg --files -0 src -g '*.cs' -g '!*.g.cs' \
@@ -524,6 +529,59 @@ if [ -n "${implementation_ref_violations}" ]; then
   exit 1
 fi
 
+projection_provider_business_dependency_hits="$(
+  rg -n "Aevatar\.(Workflow|AI)\..*\.csproj" \
+    src/Aevatar.CQRS.Projection.Providers.InMemory \
+    src/Aevatar.CQRS.Projection.Providers.Elasticsearch \
+    src/Aevatar.CQRS.Projection.Providers.Neo4j \
+    -g '*.csproj' || true
+)"
+
+if [ -n "${projection_provider_business_dependency_hits}" ]; then
+  echo "${projection_provider_business_dependency_hits}"
+  echo "Projection provider projects must remain business-agnostic. Workflow/AI project references are forbidden."
+  exit 1
+fi
+
+projection_provider_business_using_hits="$(
+  rg -n "using\s+Aevatar\.(Workflow|AI)\." \
+    src/Aevatar.CQRS.Projection.Providers.InMemory \
+    src/Aevatar.CQRS.Projection.Providers.Elasticsearch \
+    src/Aevatar.CQRS.Projection.Providers.Neo4j \
+    -g '*.cs' || true
+)"
+
+if [ -n "${projection_provider_business_using_hits}" ]; then
+  echo "${projection_provider_business_using_hits}"
+  echo "Projection provider source files must not reference Workflow/AI namespaces."
+  exit 1
+fi
+
+projection_provider_store_files=(
+  "src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs"
+  "src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs"
+  "src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs"
+)
+
+for provider_store_file in "${projection_provider_store_files[@]}"; do
+  if [ ! -f "${provider_store_file}" ]; then
+    echo "Missing provider store file: ${provider_store_file}"
+    exit 1
+  fi
+
+  if ! rg -F "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}" "${provider_store_file}" >/dev/null; then
+    echo "${provider_store_file}"
+    echo "Provider write path must emit structured success log with provider/readModelType/key/elapsedMs/result."
+    exit 1
+  fi
+
+  if ! rg -F "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}" "${provider_store_file}" >/dev/null; then
+    echo "${provider_store_file}"
+    echo "Provider write path must emit structured failure log with provider/readModelType/key/elapsedMs/result/errorType."
+    exit 1
+  fi
+done
+
 command_side_readmodel_violations="$(
   rg -n "IProjectionReadModelStore<|ReadModelStore" \
     src/workflow/Aevatar.Workflow.Application \
diff --git a/tools/ci/projection_provider_e2e_smoke.sh b/tools/ci/projection_provider_e2e_smoke.sh
new file mode 100755
index 000000000..61ad0cdcb
--- /dev/null
+++ b/tools/ci/projection_provider_e2e_smoke.sh
@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd -- "${SCRIPT_DIR}/../.." && pwd)"
+cd "${REPO_ROOT}"
+
+COMPOSE_FILE="docker-compose.projection-providers.yml"
+ELASTICSEARCH_ENDPOINT="http://127.0.0.1:9200"
+NEO4J_HOST="127.0.0.1"
+NEO4J_PORT="7687"
+NEO4J_URI="bolt://${NEO4J_HOST}:${NEO4J_PORT}"
+NEO4J_USERNAME="neo4j"
+NEO4J_PASSWORD="password"
+
+cleanup() {
+  docker compose -f "${COMPOSE_FILE}" down --volumes --remove-orphans >/dev/null 2>&1 || true
+}
+trap cleanup EXIT
+
+wait_elasticsearch() {
+  for _ in {1..90}; do
+    status="$(curl --max-time 2 -s "${ELASTICSEARCH_ENDPOINT}/_cluster/health" | rg -o "\"status\":\"[^\"]+\"" || true)"
+    if [[ "${status}" == "\"status\":\"green\"" || "${status}" == "\"status\":\"yellow\"" ]]; then
+      echo "Elasticsearch is ready: ${status}"
+      return 0
+    fi
+
+    echo "Waiting for Elasticsearch on ${ELASTICSEARCH_ENDPOINT}..."
+    sleep 2
+  done
+
+  echo "Elasticsearch failed to become ready."
+  return 1
+}
+
+wait_neo4j() {
+  for _ in {1..90}; do
+    if (echo >"/dev/tcp/${NEO4J_HOST}/${NEO4J_PORT}") >/dev/null 2>&1; then
+      echo "Neo4j bolt endpoint is reachable on ${NEO4J_HOST}:${NEO4J_PORT}."
+      return 0
+    fi
+
+    echo "Waiting for Neo4j bolt endpoint on ${NEO4J_HOST}:${NEO4J_PORT}..."
+    sleep 2
+  done
+
+  echo "Neo4j failed to become reachable."
+  return 1
+}
+
+echo "Starting Elasticsearch + Neo4j..."
+docker compose -f "${COMPOSE_FILE}" up -d elasticsearch neo4j
+
+wait_elasticsearch
+wait_neo4j
+
+echo "Running projection provider integration tests..."
+AEVATAR_TEST_ELASTICSEARCH_ENDPOINT="${ELASTICSEARCH_ENDPOINT}" \
+AEVATAR_TEST_NEO4J_URI="${NEO4J_URI}" \
+AEVATAR_TEST_NEO4J_USERNAME="${NEO4J_USERNAME}" \
+AEVATAR_TEST_NEO4J_PASSWORD="${NEO4J_PASSWORD}" \
+dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj \
+  --nologo \
+  --filter "FullyQualifiedName~ProjectionProviderE2EIntegrationTests"
+
+echo "Projection provider e2e smoke test passed."

From 45b6d9dc00f46fa89e91cfbe0c0302b0c756049e Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Tue, 24 Feb 2026 00:11:16 +0800
Subject: [PATCH 07/46] Enhance Event Sourcing with Automatic Snapshots and
 Event Compaction

- Introduced automatic snapshot functionality and event stream compaction in the event sourcing architecture, allowing for configurable snapshot intervals and retention policies.
- Updated `IEventStore` to support deletion of historical events based on snapshot versions, improving storage efficiency.
- Added `EventSourcingRuntimeOptions` to manage snapshot and compaction settings, enhancing flexibility for developers.
- Implemented in-memory and file-based snapshot stores to support the new snapshot capabilities.
- Updated documentation to reflect the new features and configuration options, aiding developer understanding and usage.
---
 docs/EVENT_SOURCING.md                        |  12 ++
 ...ng-elasticsearch-readmodel-requirements.md |   6 +-
 .../Persistence/IEventStore.cs                |  10 ++
 .../EventSourcing/EventSourcingBehavior.cs    |  45 ++++++-
 .../EventSourcingRuntimeOptions.cs            |  28 ++++
 .../GAgentBase.TState.cs                      |  31 ++++-
 .../AevatarActorRuntimeOptions.cs             |   8 ++
 .../ServiceCollectionExtensions.cs            |  32 ++++-
 .../ServiceCollectionExtensions.cs            |   4 +
 .../Grains/RuntimeActorGrain.cs               |   6 +
 ...imeActorGrainEventSourcingSnapshotStore.cs |  61 +++++++++
 .../Grains/RuntimeActorGrainState.cs          |   3 +
 .../Grains/RuntimeActorGrainStateStore.cs     |   2 +
 .../ServiceCollectionExtensions.cs            |  10 +-
 .../FileEventSourcingSnapshotStore.cs         | 100 ++++++++++++++
 .../Persistence/FileEventStore.cs             | 123 ++++++++++++++++--
 .../InMemoryEventSourcingSnapshotStore.cs     |  36 +++++
 .../Persistence/InMemoryEventStore.cs         |  65 +++++++--
 src/Aevatar.Foundation.Runtime/README.md      |  10 ++
 .../ProjectionOwnershipAndSessionHubTests.cs  |  25 +++-
 .../EventSourcingTests.cs                     |  41 +++++-
 .../FileEventStoreTests.cs                    |  55 ++++++++
 .../InMemoryStoreTests.cs                     |  36 +++++
 .../RuntimeEventStoreRegistrationTests.cs     |   3 +
 24 files changed, 712 insertions(+), 40 deletions(-)
 create mode 100644 src/Aevatar.Foundation.Core/EventSourcing/EventSourcingRuntimeOptions.cs
 create mode 100644 src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainEventSourcingSnapshotStore.cs
 create mode 100644 src/Aevatar.Foundation.Runtime/Persistence/FileEventSourcingSnapshotStore.cs
 create mode 100644 src/Aevatar.Foundation.Runtime/Persistence/InMemoryEventSourcingSnapshotStore.cs

diff --git a/docs/EVENT_SOURCING.md b/docs/EVENT_SOURCING.md
index 4ea9036fb..12dc69ae4 100644
--- a/docs/EVENT_SOURCING.md
+++ b/docs/EVENT_SOURCING.md
@@ -11,6 +11,7 @@
 3. 领域事件必须由开发者显式构建并持久化，不允许在线自动反推事件。
 4. 有状态 Actor 激活必须 Replay；停用必须 flush pending events。
 5. ES 行为构造走静态泛型路径，不走 Runtime 反射注入。
+6. 默认启用自动快照（可配置），并在快照成功后按版本裁剪历史事件流（可配置）。
 
 ## 3. 当前代码事实（权威路径）
 - ES 行为契约：`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs`
@@ -38,6 +39,7 @@
   - `ConfirmEventsAsync`
   - `PersistSnapshotAsync`
 - 不再调用 `StateStore.SaveAsync` 写事实态。
+- 快照保存成功后，会调用 `IEventStore.DeleteEventsUpToAsync(...)` 自动清理历史事件（保留窗口可配置）。
 
 ### 4.3 Fail-Fast 条件
 - 未预设 `EventSourcing` 且容器中无 `IEventStore`：激活失败（`InvalidOperationException`）。
@@ -63,16 +65,25 @@ public async Task Handle(IncrementRequested evt)
 
 ## 6. DI 与容器约定
 - `AddAevatarRuntime()` 默认注册 `IEventStore -> InMemoryEventStore`（开发/测试）。
+- `AddAevatarRuntime()` 默认注册 `IEventSourcingSnapshotStore<TState> -> InMemoryEventSourcingSnapshotStore<TState>`。
 - 可通过 `AddFileEventStore(...)` 将 `IEventStore` 切换为本地持久化实现：`src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs`。
+- 调用 `AddFileEventStore(...)` 时，`IEventSourcingSnapshotStore<TState>` 会切换为 `FileEventSourcingSnapshotStore<TState>`，支持快照与事件裁剪后的持久化恢复。
 - 生产环境应替换为持久化实现（Redis/DB/日志存储等）。
 - 如需自定义 ES 行为，可直接为 Agent 预设 `EventSourcing`，但必须保持相同语义契约。
 - 如需解耦 Agent 里的 `TransitionState` 逻辑，可注册多个 `IStateEventApplier<TState>`，按 `Order` 升序匹配应用。
 - Agent 侧推荐使用 `StateTransitionMatcher.Match(...).On<TEvent>(...).OrCurrent()`，避免重复 `Any + switch` 样板代码。
+- 可通过 `ActorRuntime:EventSourcing:*` 调整自动快照与裁剪策略：
+  - `EnableSnapshots`（默认 `true`）
+  - `SnapshotInterval`（默认 `200`）
+  - `EnableEventCompaction`（默认 `true`）
+  - `RetainedEventsAfterSnapshot`（默认 `0`）
 
 ## 7. 快照语义
 1. 快照仅用于减少回放开销。
 2. 快照写入失败不得影响已提交事件事实。
 3. 恢复顺序：先快照，再从快照版本之后回放事件增量。
+4. 事件裁剪只在“快照写入成功”后触发，避免清理后无快照可恢复。
+5. 裁剪后事件流版本号必须保持单调递增，后续 append 继续基于最新版本并发控制。
 
 ## 8. 明确禁止项
 1. 把 `TState` 本体当事件写入 `EventStore`。
@@ -84,4 +95,5 @@ public async Task Handle(IncrementRequested evt)
 ## 9. 验证命令
 - `dotnet test test/Aevatar.Foundation.Core.Tests/Aevatar.Foundation.Core.Tests.csproj --nologo`
 - `dotnet test test/Aevatar.Foundation.Runtime.Hosting.Tests/Aevatar.Foundation.Runtime.Hosting.Tests.csproj --nologo`
+- `dotnet test test/Aevatar.Integration.Tests/Aevatar.Integration.Tests.csproj --nologo`
 - `bash tools/ci/architecture_guards.sh`
diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index 50f119f2a..188f49713 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -37,6 +37,10 @@
 6. `ConfirmDerivedEventsAsync` / `IDomainEventDeriver` / `EventSourcingAutoPersistenceOptions` 已从主链路移除。
 7. 运行期通过 `PersistDomainEventAsync` / `PersistDomainEventsAsync` 执行“持久化 + 顺序 apply”；Replay 主要用于激活恢复。
 8. `TransitionState` 可由 Agent override 或 `IStateEventApplier<TState>` 组合实现。
+9. 默认启用自动快照与事件流裁剪：
+   - 快照：`EventSourcingRuntimeOptions.SnapshotInterval`
+   - 裁剪：快照成功后调用 `IEventStore.DeleteEventsUpToAsync(...)`
+   - 保留窗口：`RetainedEventsAfterSnapshot`
 
 ### 3.2 Provider Runtime
 - 抽象：`src/Aevatar.CQRS.Projection.Abstractions`
@@ -130,7 +134,7 @@
 ### P4（待执行）性能与生产化增强
 1. 为持久化 `IEventStore` 提供生产落地方案与压测基线（已落地本地持久化基线：`FileEventStore`，生产级后端仍待接入）。
 2. 补齐 Elasticsearch/Neo4j 端到端集成脚本与回归套件（已落地基础 smoke + env-gated e2e，后续补 CI 常态化接入与更高负载回归）。
-3. 细化快照策略与回放窗口控制。
+3. 细化快照策略与回放窗口控制（已落地自动快照 + 裁剪基础能力，后续补压测驱动的阈值治理）。
 
 ## 6. 验收标准（DoD）
 1. 有状态 Actor 恢复路径全部来自 Replay，不存在 `StateStore.Load/Save` 事实回路。
diff --git a/src/Aevatar.Foundation.Abstractions/Persistence/IEventStore.cs b/src/Aevatar.Foundation.Abstractions/Persistence/IEventStore.cs
index 0752d923b..497485911 100644
--- a/src/Aevatar.Foundation.Abstractions/Persistence/IEventStore.cs
+++ b/src/Aevatar.Foundation.Abstractions/Persistence/IEventStore.cs
@@ -28,4 +28,14 @@ Task<IReadOnlyList<StateEvent>> GetEventsAsync(
 
     /// <summary>Get current latest version number.</summary>
     Task<long> GetVersionAsync(string agentId, CancellationToken ct = default);
+
+    /// <summary>
+    /// Deletes historical events whose version is less than or equal to <paramref name="toVersion"/>.
+    /// Used by snapshot-based compaction to control stream size growth.
+    /// Returns the number of deleted events.
+    /// </summary>
+    Task<long> DeleteEventsUpToAsync(
+        string agentId,
+        long toVersion,
+        CancellationToken ct = default);
 }
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs b/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs
index a350bc4cf..6e2f93b93 100644
--- a/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs
+++ b/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs
@@ -22,6 +22,8 @@ public class EventSourcingBehavior<TState> : IEventSourcingBehavior<TState>
     private readonly IEventStore _eventStore;
     private readonly IEventSourcingSnapshotStore<TState>? _snapshotStore;
     private readonly ISnapshotStrategy _snapshotStrategy;
+    private readonly bool _enableEventCompaction;
+    private readonly int _retainedEventsAfterSnapshot;
     private readonly ILogger<EventSourcingBehavior<TState>> _logger;
     private readonly List<IMessage> _pending = [];
     private readonly string _agentId;
@@ -32,12 +34,16 @@ public EventSourcingBehavior(
         string agentId,
         IEventSourcingSnapshotStore<TState>? snapshotStore = null,
         ISnapshotStrategy? snapshotStrategy = null,
-        ILogger<EventSourcingBehavior<TState>>? logger = null)
+        ILogger<EventSourcingBehavior<TState>>? logger = null,
+        bool enableEventCompaction = false,
+        int retainedEventsAfterSnapshot = 0)
     {
         _eventStore = eventStore;
         _agentId = agentId;
         _snapshotStore = snapshotStore;
         _snapshotStrategy = snapshotStrategy ?? NeverSnapshotStrategy.Instance;
+        _enableEventCompaction = enableEventCompaction;
+        _retainedEventsAfterSnapshot = Math.Max(0, retainedEventsAfterSnapshot);
         _logger = logger ?? NullLogger<EventSourcingBehavior<TState>>.Instance;
     }
 
@@ -117,6 +123,7 @@ await _snapshotStore.SaveAsync(
                 _agentId,
                 new EventSourcingSnapshot<TState>(currentState.Clone(), _currentVersion),
                 ct);
+            await TryCompactEventsAsync(ct);
         }
         catch (Exception ex)
         {
@@ -196,4 +203,40 @@ private static string JoinEventTypes(IEnumerable<IMessage> events)
             .ToArray();
         return eventTypes.Length == 0 ? "<none>" : string.Join(",", eventTypes);
     }
+
+    private async Task TryCompactEventsAsync(CancellationToken ct)
+    {
+        if (!_enableEventCompaction)
+            return;
+
+        var compactToVersion = _currentVersion - _retainedEventsAfterSnapshot;
+        if (compactToVersion <= 0)
+            return;
+
+        try
+        {
+            var deleted = await _eventStore.DeleteEventsUpToAsync(_agentId, compactToVersion, ct);
+            if (deleted <= 0)
+                return;
+
+            _logger.LogInformation(
+                "Event sourcing compaction completed. agentId={AgentId} compactToVersion={CompactToVersion} deletedEvents={DeletedEvents} retainedRecentEvents={RetainedRecentEvents} result={Result}",
+                _agentId,
+                compactToVersion,
+                deleted,
+                _retainedEventsAfterSnapshot,
+                "ok");
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(
+                ex,
+                "Event sourcing compaction failed and will be ignored. agentId={AgentId} compactToVersion={CompactToVersion} retainedRecentEvents={RetainedRecentEvents} result={Result} errorType={ErrorType}",
+                _agentId,
+                compactToVersion,
+                _retainedEventsAfterSnapshot,
+                "ignored",
+                ex.GetType().Name);
+        }
+    }
 }
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingRuntimeOptions.cs b/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingRuntimeOptions.cs
new file mode 100644
index 000000000..5d49d9c5b
--- /dev/null
+++ b/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingRuntimeOptions.cs
@@ -0,0 +1,28 @@
+namespace Aevatar.Foundation.Core.EventSourcing;
+
+/// <summary>
+/// Runtime defaults for automatic snapshot and event-stream compaction.
+/// </summary>
+public sealed class EventSourcingRuntimeOptions
+{
+    /// <summary>
+    /// Enables snapshot persistence for stateful agents when a snapshot store is registered.
+    /// </summary>
+    public bool EnableSnapshots { get; set; } = true;
+
+    /// <summary>
+    /// Snapshot interval in committed event versions.
+    /// </summary>
+    public int SnapshotInterval { get; set; } = 200;
+
+    /// <summary>
+    /// Enables deleting historical events after a snapshot is successfully saved.
+    /// </summary>
+    public bool EnableEventCompaction { get; set; } = true;
+
+    /// <summary>
+    /// Number of latest events to retain after compaction.
+    /// 0 means delete all events up to snapshot version.
+    /// </summary>
+    public int RetainedEventsAfterSnapshot { get; set; } = 0;
+}
diff --git a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
index c0fb52182..997f71de0 100644
--- a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
+++ b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
@@ -124,7 +124,22 @@ private IEventSourcingBehavior<TState> EnsureEventSourcingConfigured()
 
         if (Services?.GetService(typeof(IEventStore)) is IEventStore eventStore)
         {
-            EventSourcing = new AgentBackedEventSourcingBehavior(eventStore, Id, this);
+            var options = Services.GetService<EventSourcingRuntimeOptions>() ?? new EventSourcingRuntimeOptions();
+            var snapshotStore = options.EnableSnapshots
+                ? Services.GetService<IEventSourcingSnapshotStore<TState>>()
+                : null;
+            ISnapshotStrategy snapshotStrategy = options.EnableSnapshots && snapshotStore != null
+                ? new IntervalSnapshotStrategy(options.SnapshotInterval)
+                : NeverSnapshotStrategy.Instance;
+
+            EventSourcing = new AgentBackedEventSourcingBehavior(
+                eventStore,
+                Id,
+                this,
+                snapshotStore,
+                snapshotStrategy,
+                options.EnableEventCompaction,
+                options.RetainedEventsAfterSnapshot);
             return EventSourcing;
         }
 
@@ -159,8 +174,18 @@ private sealed class AgentBackedEventSourcingBehavior : EventSourcingBehavior<TS
         public AgentBackedEventSourcingBehavior(
             IEventStore eventStore,
             string agentId,
-            GAgentBase<TState> owner)
-            : base(eventStore, agentId)
+            GAgentBase<TState> owner,
+            IEventSourcingSnapshotStore<TState>? snapshotStore,
+            ISnapshotStrategy snapshotStrategy,
+            bool enableEventCompaction,
+            int retainedEventsAfterSnapshot)
+            : base(
+                eventStore,
+                agentId,
+                snapshotStore,
+                snapshotStrategy,
+                enableEventCompaction: enableEventCompaction,
+                retainedEventsAfterSnapshot: retainedEventsAfterSnapshot)
         {
             _owner = owner;
         }
diff --git a/src/Aevatar.Foundation.Runtime.Hosting/AevatarActorRuntimeOptions.cs b/src/Aevatar.Foundation.Runtime.Hosting/AevatarActorRuntimeOptions.cs
index 6688582e4..5b134b5ae 100644
--- a/src/Aevatar.Foundation.Runtime.Hosting/AevatarActorRuntimeOptions.cs
+++ b/src/Aevatar.Foundation.Runtime.Hosting/AevatarActorRuntimeOptions.cs
@@ -34,4 +34,12 @@ public sealed class AevatarActorRuntimeOptions
     public string MassTransitKafkaTopicName { get; set; } = "aevatar-foundation-agent-events";
 
     public string MassTransitKafkaConsumerGroup { get; set; } = "aevatar-foundation-kafka-streaming";
+
+    public bool EventSourcingEnableSnapshots { get; set; } = true;
+
+    public int EventSourcingSnapshotInterval { get; set; } = 200;
+
+    public bool EventSourcingEnableEventCompaction { get; set; } = true;
+
+    public int EventSourcingRetainedEventsAfterSnapshot { get; set; } = 0;
 }
diff --git a/src/Aevatar.Foundation.Runtime.Hosting/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.Foundation.Runtime.Hosting/DependencyInjection/ServiceCollectionExtensions.cs
index fb46c530e..6dc74289d 100644
--- a/src/Aevatar.Foundation.Runtime.Hosting/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.Foundation.Runtime.Hosting/DependencyInjection/ServiceCollectionExtensions.cs
@@ -1,4 +1,5 @@
 using Aevatar.Foundation.Runtime.DependencyInjection;
+using Aevatar.Foundation.Core.EventSourcing;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.DependencyInjection;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Transport.MassTransit.DependencyInjection;
 using Aevatar.Foundation.Runtime.Streaming.Implementations.MassTransit;
@@ -50,19 +51,31 @@ public static IServiceCollection AddAevatarActorRuntime(
         var configuredOrleansGarnetConnectionString = configuration[$"{AevatarActorRuntimeOptions.SectionName}:OrleansGarnetConnectionString"];
         if (!string.IsNullOrWhiteSpace(configuredOrleansGarnetConnectionString))
             options.OrleansGarnetConnectionString = configuredOrleansGarnetConnectionString;
+        var configuredEventSourcingEnableSnapshots = configuration[$"{AevatarActorRuntimeOptions.SectionName}:EventSourcing:EnableSnapshots"];
+        if (bool.TryParse(configuredEventSourcingEnableSnapshots, out var eventSourcingEnableSnapshots))
+            options.EventSourcingEnableSnapshots = eventSourcingEnableSnapshots;
+        var configuredEventSourcingSnapshotInterval = configuration[$"{AevatarActorRuntimeOptions.SectionName}:EventSourcing:SnapshotInterval"];
+        if (int.TryParse(configuredEventSourcingSnapshotInterval, out var eventSourcingSnapshotInterval))
+            options.EventSourcingSnapshotInterval = eventSourcingSnapshotInterval;
+        var configuredEventSourcingEnableCompaction = configuration[$"{AevatarActorRuntimeOptions.SectionName}:EventSourcing:EnableEventCompaction"];
+        if (bool.TryParse(configuredEventSourcingEnableCompaction, out var eventSourcingEnableCompaction))
+            options.EventSourcingEnableEventCompaction = eventSourcingEnableCompaction;
+        var configuredEventSourcingRetainedEvents = configuration[$"{AevatarActorRuntimeOptions.SectionName}:EventSourcing:RetainedEventsAfterSnapshot"];
+        if (int.TryParse(configuredEventSourcingRetainedEvents, out var eventSourcingRetainedEvents))
+            options.EventSourcingRetainedEventsAfterSnapshot = eventSourcingRetainedEvents;
         configure?.Invoke(options);
 
         services.Replace(ServiceDescriptor.Singleton(options));
 
         if (string.Equals(options.Provider, AevatarActorRuntimeOptions.ProviderInMemory, StringComparison.OrdinalIgnoreCase))
         {
-            services.AddAevatarRuntime();
+            AddAevatarRuntimeWithEventSourcingOptions(services, options);
             return services;
         }
 
         if (string.Equals(options.Provider, AevatarActorRuntimeOptions.ProviderMassTransit, StringComparison.OrdinalIgnoreCase))
         {
-            services.AddAevatarRuntime();
+            AddAevatarRuntimeWithEventSourcingOptions(services, options);
             ConfigureMassTransitTransport(services, options);
             services.AddAevatarMassTransitStreamProvider();
             return services;
@@ -70,7 +83,7 @@ public static IServiceCollection AddAevatarActorRuntime(
 
         if (string.Equals(options.Provider, AevatarActorRuntimeOptions.ProviderOrleans, StringComparison.OrdinalIgnoreCase))
         {
-            services.AddAevatarRuntime();
+            AddAevatarRuntimeWithEventSourcingOptions(services, options);
             services.AddAevatarFoundationRuntimeOrleans(orleansOptions =>
             {
                 orleansOptions.StreamBackend = options.OrleansStreamBackend;
@@ -98,6 +111,19 @@ public static IServiceCollection AddAevatarActorRuntime(
             $"Unsupported ActorRuntime provider '{options.Provider}'.");
     }
 
+    private static void AddAevatarRuntimeWithEventSourcingOptions(
+        IServiceCollection services,
+        AevatarActorRuntimeOptions options)
+    {
+        services.AddAevatarRuntime(configureEventSourcing: eventSourcingOptions =>
+        {
+            eventSourcingOptions.EnableSnapshots = options.EventSourcingEnableSnapshots;
+            eventSourcingOptions.SnapshotInterval = options.EventSourcingSnapshotInterval;
+            eventSourcingOptions.EnableEventCompaction = options.EventSourcingEnableEventCompaction;
+            eventSourcingOptions.RetainedEventsAfterSnapshot = options.EventSourcingRetainedEventsAfterSnapshot;
+        });
+    }
+
     private static void ConfigureMassTransitTransport(
         IServiceCollection services,
         AevatarActorRuntimeOptions options)
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
index 07ea04bae..d216ef5a6 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
@@ -3,6 +3,7 @@
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Actors;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming.DependencyInjection;
+using Aevatar.Foundation.Core.EventSourcing;
 using Orleans.Hosting;
 using Orleans.Streams;
 
@@ -22,9 +23,12 @@ public static IServiceCollection AddAevatarFoundationRuntimeOrleans(
         services.Replace(ServiceDescriptor.Singleton(options));
 
         services.Replace(ServiceDescriptor.Singleton<IActorRuntime, OrleansActorRuntime>());
+        services.TryAddSingleton<EventSourcingRuntimeOptions>();
         services.RemoveAll(typeof(IStateStore<>));
+        services.RemoveAll(typeof(IEventSourcingSnapshotStore<>));
         services.TryAddSingleton<IRuntimeActorStateBindingAccessor, AsyncLocalRuntimeActorStateBindingAccessor>();
         services.TryAddTransient(typeof(IStateStore<>), typeof(RuntimeActorGrainStateStore<>));
+        services.TryAddTransient(typeof(IEventSourcingSnapshotStore<>), typeof(RuntimeActorGrainEventSourcingSnapshotStore<>));
         services.TryAddSingleton<IEventStore, InMemoryEventStore>();
         services.TryAddSingleton<IAgentManifestStore, InMemoryManifestStore>();
         services.TryAddSingleton<IEventDeduplicator, MemoryCacheDeduplicator>();
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
index 0dbb40894..9f5c33ebb 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
@@ -16,6 +16,7 @@ public sealed class RuntimeActorGrain : Grain, IRuntimeActorGrain
     private IEnvelopePropagationPolicy _propagationPolicy =
         new DefaultEnvelopePropagationPolicy(new DefaultCorrelationLinkPolicy());
     private Aevatar.Foundation.Abstractions.IStreamProvider _streams = null!;
+    private IRuntimeActorStateBindingAccessor? _stateBindingAccessor;
     private ILogger<RuntimeActorGrain> _logger = NullLogger<RuntimeActorGrain>.Instance;
     private IAsyncStream<EventEnvelope>? _selfStream;
     private StreamSubscriptionHandle<EventEnvelope>? _selfStreamHandle;
@@ -31,6 +32,7 @@ public override async Task OnActivateAsync(CancellationToken cancellationToken)
         _deduplicator = ServiceProvider.GetService<IEventDeduplicator>();
         _propagationPolicy = ServiceProvider.GetService<IEnvelopePropagationPolicy>() ?? _propagationPolicy;
         _streams = ServiceProvider.GetRequiredService<Aevatar.Foundation.Abstractions.IStreamProvider>();
+        _stateBindingAccessor = ServiceProvider.GetService<IRuntimeActorStateBindingAccessor>();
 
         var loggerFactory = ServiceProvider.GetService<ILoggerFactory>();
         _logger = loggerFactory?.CreateLogger<RuntimeActorGrain>() ?? NullLogger<RuntimeActorGrain>.Instance;
@@ -51,6 +53,7 @@ public override async Task OnDeactivateAsync(DeactivationReason reason, Cancella
 
         if (_agent != null)
         {
+            using var stateBinding = _stateBindingAccessor?.Bind(_state);
             await _agent.DeactivateAsync(cancellationToken);
             _agent = null;
         }
@@ -118,6 +121,7 @@ public async Task HandleEnvelopeAsync(byte[] envelopeBytes)
                 return;
         }
 
+        using var stateBinding = _stateBindingAccessor?.Bind(_state);
         await _agent.HandleEventAsync(envelope);
     }
 
@@ -198,6 +202,7 @@ public async Task PurgeAsync()
         _state.State.Children.Clear();
         _state.State.AgentStateTypeName = null;
         _state.State.AgentStateSnapshot = null;
+        _state.State.AgentStateSnapshotVersion = 0;
         await _state.WriteStateAsync();
     }
 
@@ -212,6 +217,7 @@ private async Task<bool> InitializeAgentInternalAsync(string agentTypeName, Canc
 
         try
         {
+            using var stateBinding = _stateBindingAccessor?.Bind(_state);
             var agent = CreateAgentInstance(agentType);
             InjectDependencies(agent, this.GetPrimaryKeyString());
             await agent.ActivateAsync(ct);
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainEventSourcingSnapshotStore.cs b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainEventSourcingSnapshotStore.cs
new file mode 100644
index 000000000..f610672e9
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainEventSourcingSnapshotStore.cs
@@ -0,0 +1,61 @@
+using Aevatar.Foundation.Core.EventSourcing;
+using Google.Protobuf;
+using Orleans.Runtime;
+
+namespace Aevatar.Foundation.Runtime.Implementations.Orleans.Grains;
+
+/// <summary>
+/// Uses RuntimeActorGrain persistent state as snapshot storage for event sourcing.
+/// </summary>
+internal sealed class RuntimeActorGrainEventSourcingSnapshotStore<TState>
+    : IEventSourcingSnapshotStore<TState>
+    where TState : class, IMessage<TState>, new()
+{
+    private static readonly string StateTypeName = typeof(TState).FullName ?? typeof(TState).Name;
+
+    private readonly IPersistentState<RuntimeActorGrainState> _runtimeState;
+
+    public RuntimeActorGrainEventSourcingSnapshotStore(IPersistentState<RuntimeActorGrainState> runtimeState)
+    {
+        _runtimeState = runtimeState;
+    }
+
+    public RuntimeActorGrainEventSourcingSnapshotStore(IRuntimeActorStateBindingAccessor accessor)
+    {
+        ArgumentNullException.ThrowIfNull(accessor);
+        _runtimeState = accessor.Current
+            ?? throw new InvalidOperationException(
+                "Runtime actor state is not bound. " +
+                "Resolve IEventSourcingSnapshotStore<TState> only within RuntimeActorGrain binding context.");
+    }
+
+    public Task<EventSourcingSnapshot<TState>?> LoadAsync(string agentId, CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ct.ThrowIfCancellationRequested();
+
+        var snapshot = _runtimeState.State.AgentStateSnapshot;
+        if (snapshot == null || snapshot.Length == 0)
+            return Task.FromResult<EventSourcingSnapshot<TState>?>(null);
+
+        if (!string.Equals(_runtimeState.State.AgentStateTypeName, StateTypeName, StringComparison.Ordinal))
+            return Task.FromResult<EventSourcingSnapshot<TState>?>(null);
+
+        var state = new TState();
+        state.MergeFrom(snapshot);
+        return Task.FromResult<EventSourcingSnapshot<TState>?>(
+            new EventSourcingSnapshot<TState>(state, _runtimeState.State.AgentStateSnapshotVersion));
+    }
+
+    public Task SaveAsync(string agentId, EventSourcingSnapshot<TState> snapshot, CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ArgumentNullException.ThrowIfNull(snapshot);
+        ct.ThrowIfCancellationRequested();
+
+        _runtimeState.State.AgentStateTypeName = StateTypeName;
+        _runtimeState.State.AgentStateSnapshot = snapshot.State.ToByteArray();
+        _runtimeState.State.AgentStateSnapshotVersion = snapshot.Version;
+        return _runtimeState.WriteStateAsync();
+    }
+}
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainState.cs b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainState.cs
index 88b9c4b93..ef76b231e 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainState.cs
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainState.cs
@@ -20,4 +20,7 @@ public sealed class RuntimeActorGrainState
 
     [Id(5)]
     public byte[]? AgentStateSnapshot { get; set; }
+
+    [Id(6)]
+    public long AgentStateSnapshotVersion { get; set; }
 }
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainStateStore.cs b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainStateStore.cs
index 9f31ae8e6..3f7477e77 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainStateStore.cs
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrainStateStore.cs
@@ -53,6 +53,7 @@ public Task SaveAsync(string agentId, TState state, CancellationToken ct = defau
 
         _runtimeState.State.AgentStateTypeName = StateTypeName;
         _runtimeState.State.AgentStateSnapshot = state.ToByteArray();
+        _runtimeState.State.AgentStateSnapshotVersion = 0;
         return _runtimeState.WriteStateAsync();
     }
 
@@ -63,6 +64,7 @@ public Task DeleteAsync(string agentId, CancellationToken ct = default)
 
         _runtimeState.State.AgentStateTypeName = null;
         _runtimeState.State.AgentStateSnapshot = null;
+        _runtimeState.State.AgentStateSnapshotVersion = 0;
         return _runtimeState.WriteStateAsync();
     }
 }
diff --git a/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index e046b30ba..5d094fe44 100644
--- a/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -9,6 +9,7 @@
 using Aevatar.Foundation.Abstractions.Persistence;
 using Aevatar.Foundation.Abstractions.Propagation;
 using Aevatar.Foundation.Abstractions.Streaming;
+using Aevatar.Foundation.Core.EventSourcing;
 using Aevatar.Foundation.Core.Propagation;
 using Aevatar.Foundation.Runtime.Persistence;
 using Aevatar.Foundation.Runtime.Routing;
@@ -31,7 +32,8 @@ public static class ServiceCollectionExtensions
     /// <returns>Service collection for fluent chaining.</returns>
     public static IServiceCollection AddAevatarRuntime(
         this IServiceCollection services,
-        Action<InMemoryStreamOptions>? configureStreams = null)
+        Action<InMemoryStreamOptions>? configureStreams = null,
+        Action<EventSourcingRuntimeOptions>? configureEventSourcing = null)
     {
         // Streaming
         var streamOptions = new InMemoryStreamOptions();
@@ -57,7 +59,12 @@ public static IServiceCollection AddAevatarRuntime(
                 sp.GetService<ILogger<LocalActorRuntime>>()));
 
         // Persistence
+        var eventSourcingOptions = new EventSourcingRuntimeOptions();
+        configureEventSourcing?.Invoke(eventSourcingOptions);
+        services.Replace(ServiceDescriptor.Singleton(eventSourcingOptions));
+
         services.TryAddSingleton(typeof(IStateStore<>), typeof(InMemoryStateStore<>));
+        services.TryAddSingleton(typeof(IEventSourcingSnapshotStore<>), typeof(InMemoryEventSourcingSnapshotStore<>));
         services.TryAddSingleton<IEventStore, InMemoryEventStore>();
         services.TryAddSingleton<IAgentManifestStore, InMemoryManifestStore>();
 
@@ -91,6 +98,7 @@ public static IServiceCollection AddFileEventStore(
         configure?.Invoke(options);
         services.Replace(ServiceDescriptor.Singleton(options));
         services.Replace(ServiceDescriptor.Singleton<IEventStore, FileEventStore>());
+        services.Replace(ServiceDescriptor.Singleton(typeof(IEventSourcingSnapshotStore<>), typeof(FileEventSourcingSnapshotStore<>)));
         return services;
     }
 }
diff --git a/src/Aevatar.Foundation.Runtime/Persistence/FileEventSourcingSnapshotStore.cs b/src/Aevatar.Foundation.Runtime/Persistence/FileEventSourcingSnapshotStore.cs
new file mode 100644
index 000000000..9fc348b64
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime/Persistence/FileEventSourcingSnapshotStore.cs
@@ -0,0 +1,100 @@
+using System.Collections.Concurrent;
+using System.Text;
+using Aevatar.Foundation.Core.EventSourcing;
+using Google.Protobuf;
+
+namespace Aevatar.Foundation.Runtime.Persistence;
+
+/// <summary>
+/// File-backed snapshot store for event sourcing snapshots.
+/// </summary>
+public sealed class FileEventSourcingSnapshotStore<TState> : IEventSourcingSnapshotStore<TState>
+    where TState : class, IMessage<TState>, new()
+{
+    private readonly string _rootDirectory;
+    private readonly ConcurrentDictionary<string, SemaphoreSlim> _agentLocks = new(StringComparer.Ordinal);
+
+    public FileEventSourcingSnapshotStore(FileEventStoreOptions options)
+    {
+        ArgumentNullException.ThrowIfNull(options);
+        if (string.IsNullOrWhiteSpace(options.RootDirectory))
+            throw new InvalidOperationException("File snapshot store requires a non-empty root directory.");
+
+        _rootDirectory = Path.GetFullPath(options.RootDirectory);
+        Directory.CreateDirectory(_rootDirectory);
+    }
+
+    public async Task<EventSourcingSnapshot<TState>?> LoadAsync(string agentId, CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ct.ThrowIfCancellationRequested();
+
+        var gate = _agentLocks.GetOrAdd(agentId, static _ => new SemaphoreSlim(1, 1));
+        await gate.WaitAsync(ct);
+
+        try
+        {
+            var path = GetSnapshotPath(agentId);
+            if (!File.Exists(path))
+                return null;
+
+            await using var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
+            using var reader = new BinaryReader(stream, Encoding.UTF8, leaveOpen: true);
+            var version = reader.ReadInt64();
+            var payloadLength = reader.ReadInt32();
+            if (payloadLength <= 0)
+                throw new InvalidOperationException($"Corrupted snapshot for '{agentId}': invalid payload length {payloadLength}.");
+
+            var payload = reader.ReadBytes(payloadLength);
+            if (payload.Length != payloadLength)
+                throw new InvalidOperationException($"Corrupted snapshot for '{agentId}': truncated payload.");
+
+            var state = new TState();
+            state.MergeFrom(payload);
+            return new EventSourcingSnapshot<TState>(state, version);
+        }
+        finally
+        {
+            gate.Release();
+        }
+    }
+
+    public async Task SaveAsync(string agentId, EventSourcingSnapshot<TState> snapshot, CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ArgumentNullException.ThrowIfNull(snapshot);
+        ct.ThrowIfCancellationRequested();
+
+        var gate = _agentLocks.GetOrAdd(agentId, static _ => new SemaphoreSlim(1, 1));
+        await gate.WaitAsync(ct);
+
+        try
+        {
+            var path = GetSnapshotPath(agentId);
+            var tempPath = path + ".tmp";
+            await using (var stream = new FileStream(tempPath, FileMode.Create, FileAccess.Write, FileShare.None))
+            using (var writer = new BinaryWriter(stream, Encoding.UTF8, leaveOpen: true))
+            {
+                var payload = snapshot.State.ToByteArray();
+                writer.Write(snapshot.Version);
+                writer.Write(payload.Length);
+                writer.Write(payload);
+            }
+
+            File.Move(tempPath, path, overwrite: true);
+        }
+        finally
+        {
+            gate.Release();
+        }
+    }
+
+    private string GetSnapshotPath(string agentId)
+    {
+        var encoded = Convert.ToBase64String(Encoding.UTF8.GetBytes(agentId))
+            .Replace('+', '-')
+            .Replace('/', '_')
+            .TrimEnd('=');
+        return Path.Combine(_rootDirectory, encoded + ".snapshot");
+    }
+}
diff --git a/src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs b/src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs
index d6d25ad74..a3769a1d3 100644
--- a/src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs
+++ b/src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs
@@ -13,6 +13,16 @@ namespace Aevatar.Foundation.Runtime.Persistence;
 /// </summary>
 public sealed class FileEventStore : IEventStore
 {
+    private const int StreamFormatMagic = 0x53464541; // AEFS
+    private const int StreamFormatVersion = 1;
+
+    private sealed class EventStreamState
+    {
+        public long CurrentVersion { get; set; }
+
+        public List<StateEvent> Events { get; } = [];
+    }
+
     private readonly string _rootDirectory;
     private readonly ConcurrentDictionary<string, SemaphoreSlim> _agentLocks = new(StringComparer.Ordinal);
     private readonly ILogger<FileEventStore> _logger;
@@ -53,17 +63,18 @@ public async Task<long> AppendAsync(
         try
         {
             var stream = ReadStream(agentId, ct);
-            var currentVersion = stream.Count == 0 ? 0 : stream[^1].Version;
+            var currentVersion = stream.CurrentVersion;
             if (currentVersion != expectedVersion)
             {
                 throw new InvalidOperationException(
                     $"Optimistic concurrency conflict: expected {expectedVersion}, actual {currentVersion}");
             }
 
-            stream.AddRange(pendingEvents);
+            stream.Events.AddRange(pendingEvents);
+            stream.CurrentVersion = pendingEvents[^1].Version;
             WriteStream(agentId, stream, ct);
 
-            var latestVersion = stream[^1].Version;
+            var latestVersion = stream.CurrentVersion;
             _logger.LogDebug(
                 "File event-store append completed. agentId={AgentId} appended={Count} version={Version}",
                 agentId,
@@ -92,8 +103,8 @@ public async Task<IReadOnlyList<StateEvent>> GetEventsAsync(
         {
             var stream = ReadStream(agentId, ct);
             var filtered = fromVersion.HasValue
-                ? stream.Where(x => x.Version > fromVersion.Value)
-                : stream;
+                ? stream.Events.Where(x => x.Version > fromVersion.Value)
+                : stream.Events.AsEnumerable();
             return filtered.Select(CloneEvent).ToList();
         }
         finally
@@ -113,7 +124,36 @@ public async Task<long> GetVersionAsync(string agentId, CancellationToken ct = d
         try
         {
             var stream = ReadStream(agentId, ct);
-            return stream.Count == 0 ? 0 : stream[^1].Version;
+            return stream.CurrentVersion;
+        }
+        finally
+        {
+            gate.Release();
+        }
+    }
+
+    public async Task<long> DeleteEventsUpToAsync(
+        string agentId,
+        long toVersion,
+        CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ct.ThrowIfCancellationRequested();
+        if (toVersion <= 0)
+            return 0;
+
+        var gate = _agentLocks.GetOrAdd(agentId, static _ => new SemaphoreSlim(1, 1));
+        await gate.WaitAsync(ct);
+
+        try
+        {
+            var stream = ReadStream(agentId, ct);
+            var before = stream.Events.Count;
+            stream.Events.RemoveAll(x => x.Version <= toVersion);
+            var removed = before - stream.Events.Count;
+            if (removed > 0)
+                WriteStream(agentId, stream, ct);
+            return removed;
         }
         finally
         {
@@ -121,15 +161,68 @@ public async Task<long> GetVersionAsync(string agentId, CancellationToken ct = d
         }
     }
 
-    private List<StateEvent> ReadStream(string agentId, CancellationToken ct)
+    private EventStreamState ReadStream(string agentId, CancellationToken ct)
     {
         var path = GetStreamPath(agentId);
         if (!File.Exists(path))
-            return [];
+            return new EventStreamState();
 
-        var result = new List<StateEvent>();
+        var result = new EventStreamState();
         using var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
         using var reader = new BinaryReader(stream, Encoding.UTF8, leaveOpen: false);
+        if (stream.Length == 0)
+            return result;
+
+        var firstToken = reader.ReadInt32();
+        if (firstToken == StreamFormatMagic)
+        {
+            if (stream.Length < sizeof(int) + sizeof(int) + sizeof(long) + sizeof(int))
+            {
+                throw new InvalidOperationException(
+                    $"Corrupted event stream for agent '{agentId}': invalid header.");
+            }
+
+            var formatVersion = reader.ReadInt32();
+            if (formatVersion != StreamFormatVersion)
+            {
+                throw new InvalidOperationException(
+                    $"Unsupported event stream format version {formatVersion} for agent '{agentId}'.");
+            }
+
+            result.CurrentVersion = reader.ReadInt64();
+            var count = reader.ReadInt32();
+            if (count < 0)
+            {
+                throw new InvalidOperationException(
+                    $"Corrupted event stream for agent '{agentId}': invalid event count {count}.");
+            }
+
+            for (var i = 0; i < count; i++)
+            {
+                ct.ThrowIfCancellationRequested();
+                var payloadLength = reader.ReadInt32();
+                if (payloadLength <= 0)
+                {
+                    throw new InvalidOperationException(
+                        $"Corrupted event stream for agent '{agentId}': invalid payload length {payloadLength}.");
+                }
+
+                var payload = reader.ReadBytes(payloadLength);
+                if (payload.Length != payloadLength)
+                {
+                    throw new InvalidOperationException(
+                        $"Corrupted event stream for agent '{agentId}': truncated payload.");
+                }
+
+                result.Events.Add(StateEvent.Parser.ParseFrom(payload));
+            }
+
+            return result;
+        }
+
+        // Legacy format fallback: [length][event][length][event]...
+        stream.Position = 0;
+        reader.BaseStream.Position = 0;
 
         while (stream.Position < stream.Length)
         {
@@ -148,13 +241,14 @@ private List<StateEvent> ReadStream(string agentId, CancellationToken ct)
                     $"Corrupted event stream for agent '{agentId}': truncated payload.");
             }
 
-            result.Add(StateEvent.Parser.ParseFrom(payload));
+            result.Events.Add(StateEvent.Parser.ParseFrom(payload));
         }
 
+        result.CurrentVersion = result.Events.Count == 0 ? 0 : result.Events[^1].Version;
         return result;
     }
 
-    private void WriteStream(string agentId, IReadOnlyList<StateEvent> stream, CancellationToken ct)
+    private void WriteStream(string agentId, EventStreamState stream, CancellationToken ct)
     {
         var path = GetStreamPath(agentId);
         var tempPath = path + ".tmp";
@@ -162,7 +256,12 @@ private void WriteStream(string agentId, IReadOnlyList<StateEvent> stream, Cance
         using (var fileStream = new FileStream(tempPath, FileMode.Create, FileAccess.Write, FileShare.None))
         using (var writer = new BinaryWriter(fileStream, Encoding.UTF8, leaveOpen: false))
         {
-            foreach (var evt in stream)
+            writer.Write(StreamFormatMagic);
+            writer.Write(StreamFormatVersion);
+            writer.Write(stream.CurrentVersion);
+            writer.Write(stream.Events.Count);
+
+            foreach (var evt in stream.Events)
             {
                 ct.ThrowIfCancellationRequested();
                 var payload = evt.ToByteArray();
diff --git a/src/Aevatar.Foundation.Runtime/Persistence/InMemoryEventSourcingSnapshotStore.cs b/src/Aevatar.Foundation.Runtime/Persistence/InMemoryEventSourcingSnapshotStore.cs
new file mode 100644
index 000000000..594c88f0e
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime/Persistence/InMemoryEventSourcingSnapshotStore.cs
@@ -0,0 +1,36 @@
+using System.Collections.Concurrent;
+using Aevatar.Foundation.Core.EventSourcing;
+using Google.Protobuf;
+
+namespace Aevatar.Foundation.Runtime.Persistence;
+
+/// <summary>
+/// In-memory snapshot store for event sourcing state snapshots.
+/// </summary>
+public sealed class InMemoryEventSourcingSnapshotStore<TState> : IEventSourcingSnapshotStore<TState>
+    where TState : class, IMessage<TState>, new()
+{
+    private readonly ConcurrentDictionary<string, EventSourcingSnapshot<TState>> _snapshots = new(StringComparer.Ordinal);
+
+    public Task<EventSourcingSnapshot<TState>?> LoadAsync(string agentId, CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ct.ThrowIfCancellationRequested();
+
+        if (!_snapshots.TryGetValue(agentId, out var snapshot))
+            return Task.FromResult<EventSourcingSnapshot<TState>?>(null);
+
+        return Task.FromResult<EventSourcingSnapshot<TState>?>(
+            new EventSourcingSnapshot<TState>(snapshot.State.Clone(), snapshot.Version));
+    }
+
+    public Task SaveAsync(string agentId, EventSourcingSnapshot<TState> snapshot, CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ArgumentNullException.ThrowIfNull(snapshot);
+        ct.ThrowIfCancellationRequested();
+
+        _snapshots[agentId] = new EventSourcingSnapshot<TState>(snapshot.State.Clone(), snapshot.Version);
+        return Task.CompletedTask;
+    }
+}
diff --git a/src/Aevatar.Foundation.Runtime/Persistence/InMemoryEventStore.cs b/src/Aevatar.Foundation.Runtime/Persistence/InMemoryEventStore.cs
index 6075092fa..684772b24 100644
--- a/src/Aevatar.Foundation.Runtime/Persistence/InMemoryEventStore.cs
+++ b/src/Aevatar.Foundation.Runtime/Persistence/InMemoryEventStore.cs
@@ -11,7 +11,14 @@ namespace Aevatar.Foundation.Runtime.Persistence;
 /// <summary>In-memory event store with append and version-based query support.</summary>
 public sealed class InMemoryEventStore : IEventStore
 {
-    private readonly ConcurrentDictionary<string, List<StateEvent>> _store = new();
+    private sealed class EventStreamState
+    {
+        public long CurrentVersion { get; set; }
+
+        public List<StateEvent> Events { get; } = [];
+    }
+
+    private readonly ConcurrentDictionary<string, EventStreamState> _store = new();
     private readonly object _lock = new();
 
     /// <summary>Appends events with optimistic concurrency check on expectedVersion.</summary>
@@ -22,30 +29,62 @@ public sealed class InMemoryEventStore : IEventStore
     /// <returns>Latest version after append.</returns>
     public Task<long> AppendAsync(string agentId, IEnumerable<StateEvent> events, long expectedVersion, CancellationToken ct = default)
     {
+        ct.ThrowIfCancellationRequested();
         lock (_lock)
         {
-            var list = _store.GetOrAdd(agentId, _ => []);
-            var current = list.Count > 0 ? list[^1].Version : 0;
+            var stream = _store.GetOrAdd(agentId, _ => new EventStreamState());
+            var current = stream.CurrentVersion;
             if (current != expectedVersion)
                 throw new InvalidOperationException($"Optimistic concurrency conflict: expected {expectedVersion}, actual {current}");
             var eventList = events.ToList();
-            list.AddRange(eventList);
-            return Task.FromResult(eventList.Count > 0 ? eventList[^1].Version : current);
+            stream.Events.AddRange(eventList.Select(static x => x.Clone()));
+            if (eventList.Count > 0)
+                stream.CurrentVersion = eventList[^1].Version;
+            return Task.FromResult(stream.CurrentVersion);
         }
     }
 
     /// <summary>Gets events for an agent, optionally filtered by fromVersion.</summary>
     public Task<IReadOnlyList<StateEvent>> GetEventsAsync(string agentId, long? fromVersion = null, CancellationToken ct = default)
     {
-        if (!_store.TryGetValue(agentId, out var list))
-            return Task.FromResult<IReadOnlyList<StateEvent>>([]);
-        IReadOnlyList<StateEvent> result = fromVersion.HasValue
-            ? list.Where(e => e.Version > fromVersion.Value).ToList()
-            : list.ToList();
-        return Task.FromResult(result);
+        ct.ThrowIfCancellationRequested();
+        lock (_lock)
+        {
+            if (!_store.TryGetValue(agentId, out var stream))
+                return Task.FromResult<IReadOnlyList<StateEvent>>([]);
+
+            IReadOnlyList<StateEvent> result = fromVersion.HasValue
+                ? stream.Events.Where(e => e.Version > fromVersion.Value).Select(static x => x.Clone()).ToList()
+                : stream.Events.Select(static x => x.Clone()).ToList();
+            return Task.FromResult(result);
+        }
     }
 
     /// <summary>Gets the current version for the specified agent.</summary>
-    public Task<long> GetVersionAsync(string agentId, CancellationToken ct = default) =>
-        Task.FromResult(!_store.TryGetValue(agentId, out var list) || list.Count == 0 ? 0L : list[^1].Version);
+    public Task<long> GetVersionAsync(string agentId, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        lock (_lock)
+        {
+            return Task.FromResult(!_store.TryGetValue(agentId, out var stream) ? 0L : stream.CurrentVersion);
+        }
+    }
+
+    public Task<long> DeleteEventsUpToAsync(string agentId, long toVersion, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        if (toVersion <= 0)
+            return Task.FromResult(0L);
+
+        lock (_lock)
+        {
+            if (!_store.TryGetValue(agentId, out var stream))
+                return Task.FromResult(0L);
+
+            var before = stream.Events.Count;
+            stream.Events.RemoveAll(x => x.Version <= toVersion);
+            var removed = before - stream.Events.Count;
+            return Task.FromResult((long)removed);
+        }
+    }
 }
diff --git a/src/Aevatar.Foundation.Runtime/README.md b/src/Aevatar.Foundation.Runtime/README.md
index 265aa5687..7c745a482 100644
--- a/src/Aevatar.Foundation.Runtime/README.md
+++ b/src/Aevatar.Foundation.Runtime/README.md
@@ -62,9 +62,19 @@ Runtime 维护一棵 **Agent 树**（父/子关系）。每个事件带一个**
 当前默认实现都是**内存**的，适合开发、演示和单机部署：
 
 - **事件存储**：Event Sourcing 事实源，默认 `InMemoryEventStore`，可替换为 `FileEventStore`。
+- **快照存储**：默认 `InMemoryEventSourcingSnapshotStore<TState>`；启用 `AddFileEventStore(...)` 后切换为 `FileEventSourcingSnapshotStore<TState>`。
 - **Manifest**：Agent 的配置与已挂载的模块列表。
 - **路由层级**：父子关系。
 
+Event Sourcing 默认启用自动快照与事件裁剪（快照成功后清理历史事件）：
+
+- `EnableSnapshots`（默认 `true`）
+- `SnapshotInterval`（默认 `200`）
+- `EnableEventCompaction`（默认 `true`）
+- `RetainedEventsAfterSnapshot`（默认 `0`）
+
+可通过 `ActorRuntime:EventSourcing:*` 配置覆盖。
+
 生产环境可替换为数据库或其它持久化实现，接口由 Aevatar 抽象层定义。
 
 ---
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
index 25d80de7b..7c4bcde97 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
@@ -447,6 +447,7 @@ internal sealed class StringSessionEventCodec : IProjectionSessionEventCodec<str
 internal sealed class TestInMemoryEventStore : IEventStore
 {
     private readonly Dictionary<string, List<StateEvent>> _streams = new(StringComparer.Ordinal);
+    private readonly Dictionary<string, long> _versions = new(StringComparer.Ordinal);
     private readonly object _sync = new();
 
     public Task<long> AppendAsync(
@@ -462,9 +463,10 @@ public Task<long> AppendAsync(
             {
                 stream = [];
                 _streams[agentId] = stream;
+                _versions[agentId] = 0;
             }
 
-            var currentVersion = stream.Count == 0 ? 0 : stream[^1].Version;
+            var currentVersion = _versions.GetValueOrDefault(agentId);
             if (currentVersion != expectedVersion)
             {
                 throw new InvalidOperationException(
@@ -473,7 +475,8 @@ public Task<long> AppendAsync(
 
             var appended = events.ToList();
             stream.AddRange(appended.Select(x => x.Clone()));
-            var latest = stream.Count == 0 ? 0 : stream[^1].Version;
+            var latest = appended.Count == 0 ? currentVersion : appended[^1].Version;
+            _versions[agentId] = latest;
             return Task.FromResult(latest);
         }
     }
@@ -501,10 +504,24 @@ public Task<long> GetVersionAsync(string agentId, CancellationToken ct = default
         ct.ThrowIfCancellationRequested();
         lock (_sync)
         {
-            if (!_streams.TryGetValue(agentId, out var stream) || stream.Count == 0)
+            return Task.FromResult(_versions.GetValueOrDefault(agentId));
+        }
+    }
+
+    public Task<long> DeleteEventsUpToAsync(string agentId, long toVersion, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        if (toVersion <= 0)
+            return Task.FromResult(0L);
+
+        lock (_sync)
+        {
+            if (!_streams.TryGetValue(agentId, out var stream))
                 return Task.FromResult(0L);
 
-            return Task.FromResult(stream[^1].Version);
+            var before = stream.Count;
+            stream.RemoveAll(x => x.Version <= toVersion);
+            return Task.FromResult((long)(before - stream.Count));
         }
     }
 }
diff --git a/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs b/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
index 004aec006..68e5222ff 100644
--- a/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
+++ b/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
@@ -159,6 +159,35 @@ public async Task PersistSnapshotAsync_WhenSnapshotSaveFails_ShouldNotThrowAndSh
         events.Count.ShouldBe(1);
     }
 
+    [Fact]
+    public async Task PersistSnapshotAsync_WhenCompactionEnabled_ShouldDeleteHistoricalEvents_AndKeepReplayWorking()
+    {
+        var store = new InMemoryEventStore();
+        var snapshotStore = new InMemoryEventSourcingSnapshotStore<CounterState>();
+        var behavior = new CounterEventSourcingBehavior(
+            store,
+            "agent-snapshot-compact",
+            snapshotStore: snapshotStore,
+            snapshotStrategy: new IntervalSnapshotStrategy(1),
+            enableEventCompaction: true,
+            retainedEventsAfterSnapshot: 0);
+
+        behavior.RaiseEvent(new IncrementEvent { Amount = 4 });
+        behavior.RaiseEvent(new IncrementEvent { Amount = 6 });
+        await behavior.ConfirmEventsAsync();
+        await behavior.PersistSnapshotAsync(new CounterState { Count = 10, Name = "snapshot" });
+
+        var version = await store.GetVersionAsync("agent-snapshot-compact");
+        var events = await store.GetEventsAsync("agent-snapshot-compact");
+        version.ShouldBe(2);
+        events.ShouldBeEmpty();
+
+        var replayed = await behavior.ReplayAsync("agent-snapshot-compact");
+        replayed.ShouldNotBeNull();
+        replayed!.Count.ShouldBe(10);
+        behavior.CurrentVersion.ShouldBe(2);
+    }
+
     [Fact]
     public async Task ReplayAsync_WhenSnapshotExists_ShouldReplayOnlyDeltaEvents()
     {
@@ -215,8 +244,16 @@ public CounterEventSourcingBehavior(
             IEventStore eventStore,
             string agentId,
             IEventSourcingSnapshotStore<CounterState>? snapshotStore = null,
-            ISnapshotStrategy? snapshotStrategy = null)
-            : base(eventStore, agentId, snapshotStore, snapshotStrategy) { }
+            ISnapshotStrategy? snapshotStrategy = null,
+            bool enableEventCompaction = false,
+            int retainedEventsAfterSnapshot = 0)
+            : base(
+                eventStore,
+                agentId,
+                snapshotStore,
+                snapshotStrategy,
+                enableEventCompaction: enableEventCompaction,
+                retainedEventsAfterSnapshot: retainedEventsAfterSnapshot) { }
 
         public override CounterState TransitionState(CounterState current, IMessage evt)
             => StateTransitionMatcher
diff --git a/test/Aevatar.Foundation.Core.Tests/FileEventStoreTests.cs b/test/Aevatar.Foundation.Core.Tests/FileEventStoreTests.cs
index 8e0882a9e..95c28cdd7 100644
--- a/test/Aevatar.Foundation.Core.Tests/FileEventStoreTests.cs
+++ b/test/Aevatar.Foundation.Core.Tests/FileEventStoreTests.cs
@@ -122,6 +122,61 @@ await store.AppendAsync("agent-1",
         }
     }
 
+    [Fact]
+    public async Task DeleteEventsUpToAsync_ShouldCompactHistory_AndKeepLatestVersion()
+    {
+        var root = CreateTempRoot();
+        try
+        {
+            var store = new FileEventStore(new FileEventStoreOptions { RootDirectory = root });
+            await store.AppendAsync("agent-1",
+                Enumerable.Range(1, 5).Select(i => new StateEvent
+                {
+                    EventId = $"e{i}",
+                    Timestamp = TimestampHelper.Now(),
+                    Version = i,
+                    EventType = "evt",
+                    AgentId = "agent-1",
+                }),
+                expectedVersion: 0);
+
+            var deleted = await store.DeleteEventsUpToAsync("agent-1", 4);
+            deleted.ShouldBe(4);
+
+            var versionAfterCompact = await store.GetVersionAsync("agent-1");
+            versionAfterCompact.ShouldBe(5);
+
+            var remained = await store.GetEventsAsync("agent-1");
+            remained.Count.ShouldBe(1);
+            remained[0].Version.ShouldBe(5);
+
+            await store.AppendAsync("agent-1",
+            [
+                new StateEvent
+                {
+                    EventId = "e6",
+                    Timestamp = TimestampHelper.Now(),
+                    Version = 6,
+                    EventType = "evt",
+                    AgentId = "agent-1",
+                },
+            ],
+            expectedVersion: 5);
+
+            var store2 = new FileEventStore(new FileEventStoreOptions { RootDirectory = root });
+            var version = await store2.GetVersionAsync("agent-1");
+            var events = await store2.GetEventsAsync("agent-1");
+            version.ShouldBe(6);
+            events.Count.ShouldBe(2);
+            events[0].Version.ShouldBe(5);
+            events[1].Version.ShouldBe(6);
+        }
+        finally
+        {
+            SafeDelete(root);
+        }
+    }
+
     private static string CreateTempRoot() =>
         Path.Combine(Path.GetTempPath(), "aevatar-eventstore-tests", Guid.NewGuid().ToString("N"));
 
diff --git a/test/Aevatar.Foundation.Core.Tests/InMemoryStoreTests.cs b/test/Aevatar.Foundation.Core.Tests/InMemoryStoreTests.cs
index 08c8ea2d9..e0fbfe3da 100644
--- a/test/Aevatar.Foundation.Core.Tests/InMemoryStoreTests.cs
+++ b/test/Aevatar.Foundation.Core.Tests/InMemoryStoreTests.cs
@@ -119,4 +119,40 @@ public async Task GetEvents_FromVersion_FiltersCorrectly()
         fromV3[0].Version.ShouldBe(4);
         fromV3[1].Version.ShouldBe(5);
     }
+
+    [Fact]
+    public async Task DeleteEventsUpToAsync_ShouldDeleteHistoryButKeepStreamVersion()
+    {
+        var store = new InMemoryEventStore();
+        var events = Enumerable.Range(1, 5).Select(i => new StateEvent
+        {
+            EventId = $"e{i}",
+            Version = i,
+            AgentId = "a1",
+        }).ToList();
+
+        await store.AppendAsync("a1", events, 0);
+
+        var deleted = await store.DeleteEventsUpToAsync("a1", 4);
+        deleted.ShouldBe(4);
+
+        var version = await store.GetVersionAsync("a1");
+        version.ShouldBe(5);
+
+        var remained = await store.GetEventsAsync("a1");
+        remained.Count.ShouldBe(1);
+        remained[0].Version.ShouldBe(5);
+
+        await store.AppendAsync("a1",
+        [
+            new StateEvent
+            {
+                EventId = "e6",
+                Version = 6,
+                AgentId = "a1",
+            },
+        ], 5);
+
+        (await store.GetVersionAsync("a1")).ShouldBe(6);
+    }
 }
diff --git a/test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs b/test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs
index e861eb91e..3114d754a 100644
--- a/test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs
+++ b/test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs
@@ -1,4 +1,5 @@
 using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Core.EventSourcing;
 using Microsoft.Extensions.DependencyInjection;
 using Shouldly;
 
@@ -18,8 +19,10 @@ public void AddFileEventStore_ShouldReplaceDefaultInMemoryEventStore()
 
             using var provider = services.BuildServiceProvider();
             var eventStore = provider.GetRequiredService<IEventStore>();
+            var snapshotStore = provider.GetRequiredService<IEventSourcingSnapshotStore<CounterState>>();
 
             eventStore.ShouldBeOfType<FileEventStore>();
+            snapshotStore.ShouldBeOfType<FileEventSourcingSnapshotStore<CounterState>>();
         }
         finally
         {

From 9b820f4a096612541943acbf6303f106462347db Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Tue, 24 Feb 2026 00:36:59 +0800
Subject: [PATCH 08/46] Implement Event Store Compaction and Deactivation Hooks

- Introduced `IEventStoreCompactionScheduler` to manage event compaction scheduling, allowing for deferred execution during idle actor lifecycles.
- Added `IActorDeactivationHook` and `IActorDeactivationHookDispatcher` to facilitate the execution of non-critical tasks post-actor deactivation, enhancing the runtime's lifecycle management.
- Implemented `EventStoreCompactionDeactivationHook` to trigger compaction on actor idle, improving event store efficiency.
- Updated `EventSourcingBehavior` to utilize the new compaction scheduler, ensuring historical event cleanup is handled asynchronously.
- Enhanced documentation to reflect the new compaction and deactivation hook features, aiding developer understanding and usage.
- Added tests for the new compaction scheduler and deactivation hooks to ensure reliability and correctness of the implementation.
---
 docs/EVENT_SOURCING.md                        |  13 +-
 ...ng-elasticsearch-readmodel-requirements.md |   8 +-
 .../EventSourcing/EventSourcingBehavior.cs    |  26 ++--
 .../IEventStoreCompactionScheduler.cs         |  19 +++
 .../GAgentBase.TState.cs                      |  10 +-
 .../ServiceCollectionExtensions.cs            |   4 +
 .../Grains/RuntimeActorGrain.cs               |  13 ++
 .../Actor/ActorDeactivationHookDispatcher.cs  |  45 +++++++
 .../EventStoreCompactionDeactivationHook.cs   |  24 ++++
 .../Actor/IActorDeactivationHook.cs           |  10 ++
 .../Actor/IActorDeactivationHookDispatcher.cs |   9 ++
 .../Actor/LocalActor.cs                       |  14 +-
 .../Actor/LocalActorRuntime.cs                |   5 +-
 .../ServiceCollectionExtensions.cs            |   3 +
 .../DeferredEventStoreCompactionScheduler.cs  |  84 ++++++++++++
 .../ActorDeactivationHookDispatcherTests.cs   |  67 ++++++++++
 ...erredEventStoreCompactionSchedulerTests.cs | 120 ++++++++++++++++++
 .../EventSourcingTests.cs                     |  21 ++-
 ...entStoreCompactionDeactivationHookTests.cs |  72 +++++++++++
 19 files changed, 538 insertions(+), 29 deletions(-)
 create mode 100644 src/Aevatar.Foundation.Core/EventSourcing/IEventStoreCompactionScheduler.cs
 create mode 100644 src/Aevatar.Foundation.Runtime/Actor/ActorDeactivationHookDispatcher.cs
 create mode 100644 src/Aevatar.Foundation.Runtime/Actor/EventStoreCompactionDeactivationHook.cs
 create mode 100644 src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHook.cs
 create mode 100644 src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHookDispatcher.cs
 create mode 100644 src/Aevatar.Foundation.Runtime/Persistence/DeferredEventStoreCompactionScheduler.cs
 create mode 100644 test/Aevatar.Foundation.Core.Tests/ActorDeactivationHookDispatcherTests.cs
 create mode 100644 test/Aevatar.Foundation.Core.Tests/DeferredEventStoreCompactionSchedulerTests.cs
 create mode 100644 test/Aevatar.Foundation.Core.Tests/EventStoreCompactionDeactivationHookTests.cs

diff --git a/docs/EVENT_SOURCING.md b/docs/EVENT_SOURCING.md
index 12dc69ae4..aff2f84dd 100644
--- a/docs/EVENT_SOURCING.md
+++ b/docs/EVENT_SOURCING.md
@@ -16,10 +16,15 @@
 ## 3. 当前代码事实（权威路径）
 - ES 行为契约：`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs`
 - ES 默认实现：`src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`
+- 事件裁剪调度抽象：`src/Aevatar.Foundation.Core/EventSourcing/IEventStoreCompactionScheduler.cs`
 - 状态事件 applier 抽象：`src/Aevatar.Foundation.Core/EventSourcing/IStateEventApplier.cs`
 - Typed applier 基类：`src/Aevatar.Foundation.Core/EventSourcing/StateEventApplierBase.cs`
 - 状态事件匹配器：`src/Aevatar.Foundation.Core/EventSourcing/StateTransitionMatcher.cs`
 - 有状态生命周期：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs`
+- Runtime 停用钩子抽象：`src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHook.cs`
+- Runtime 停用钩子分发器：`src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHookDispatcher.cs`
+- Runtime 停用钩子分发实现：`src/Aevatar.Foundation.Runtime/Actor/ActorDeactivationHookDispatcher.cs`
+- Runtime 默认裁剪钩子：`src/Aevatar.Foundation.Runtime/Actor/EventStoreCompactionDeactivationHook.cs`
 - 本地持久化 EventStore：`src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs`
 - Local Runtime 注入边界：`src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs`
 - Orleans Runtime 注入边界：`src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs`
@@ -39,7 +44,7 @@
   - `ConfirmEventsAsync`
   - `PersistSnapshotAsync`
 - 不再调用 `StateStore.SaveAsync` 写事实态。
-- 快照保存成功后，会调用 `IEventStore.DeleteEventsUpToAsync(...)` 自动清理历史事件（保留窗口可配置）。
+- 快照保存成功后仅记录“待清理版本”；历史事件清理由 runtime `IActorDeactivationHookDispatcher` 分发所有 `IActorDeactivationHook`，其中默认裁剪钩子触发 `IEventStoreCompactionScheduler.RunOnIdleAsync(...)` 异步执行。
 
 ### 4.3 Fail-Fast 条件
 - 未预设 `EventSourcing` 且容器中无 `IEventStore`：激活失败（`InvalidOperationException`）。
@@ -66,6 +71,9 @@ public async Task Handle(IncrementRequested evt)
 ## 6. DI 与容器约定
 - `AddAevatarRuntime()` 默认注册 `IEventStore -> InMemoryEventStore`（开发/测试）。
 - `AddAevatarRuntime()` 默认注册 `IEventSourcingSnapshotStore<TState> -> InMemoryEventSourcingSnapshotStore<TState>`。
+- `AddAevatarRuntime()` 默认注册 `IEventStoreCompactionScheduler -> DeferredEventStoreCompactionScheduler`（记录裁剪意图，空闲期执行）。
+- `AddAevatarRuntime()` 默认注册 `IActorDeactivationHook -> EventStoreCompactionDeactivationHook`。
+- `AddAevatarRuntime()` 默认注册 `IActorDeactivationHookDispatcher -> ActorDeactivationHookDispatcher`（支持多 hook 顺序分发）。
 - 可通过 `AddFileEventStore(...)` 将 `IEventStore` 切换为本地持久化实现：`src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs`。
 - 调用 `AddFileEventStore(...)` 时，`IEventSourcingSnapshotStore<TState>` 会切换为 `FileEventSourcingSnapshotStore<TState>`，支持快照与事件裁剪后的持久化恢复。
 - 生产环境应替换为持久化实现（Redis/DB/日志存储等）。
@@ -83,7 +91,8 @@ public async Task Handle(IncrementRequested evt)
 2. 快照写入失败不得影响已提交事件事实。
 3. 恢复顺序：先快照，再从快照版本之后回放事件增量。
 4. 事件裁剪只在“快照写入成功”后触发，避免清理后无快照可恢复。
-5. 裁剪后事件流版本号必须保持单调递增，后续 append 继续基于最新版本并发控制。
+5. 裁剪执行为异步延迟任务，默认在 Actor 空闲停用阶段触发，不阻塞命令写入主路径。
+6. 裁剪后事件流版本号必须保持单调递增，后续 append 继续基于最新版本并发控制。
 
 ## 8. 明确禁止项
 1. 把 `TState` 本体当事件写入 `EventStore`。
diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index 188f49713..9218c2143 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -19,10 +19,16 @@
 ### 3.1 Event Sourcing
 - 契约：`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs`
 - 实现：`src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`
+- 裁剪调度抽象：`src/Aevatar.Foundation.Core/EventSourcing/IEventStoreCompactionScheduler.cs`
+- 运行时裁剪调度实现：`src/Aevatar.Foundation.Runtime/Persistence/DeferredEventStoreCompactionScheduler.cs`
 - 状态转换扩展：`src/Aevatar.Foundation.Core/EventSourcing/IStateEventApplier.cs`
 - Typed 状态转换基类：`src/Aevatar.Foundation.Core/EventSourcing/StateEventApplierBase.cs`
 - 状态匹配器：`src/Aevatar.Foundation.Core/EventSourcing/StateTransitionMatcher.cs`
 - 生命周期：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs`
+- Runtime 停用钩子抽象：`src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHook.cs`
+- Runtime 停用钩子分发器：`src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHookDispatcher.cs`
+- Runtime 停用钩子分发实现：`src/Aevatar.Foundation.Runtime/Actor/ActorDeactivationHookDispatcher.cs`
+- Runtime 默认裁剪钩子：`src/Aevatar.Foundation.Runtime/Actor/EventStoreCompactionDeactivationHook.cs`
 - 本地持久化 EventStore 基线：`src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs`
 - 运行时注入边界：
   - `src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs`
@@ -39,7 +45,7 @@
 8. `TransitionState` 可由 Agent override 或 `IStateEventApplier<TState>` 组合实现。
 9. 默认启用自动快照与事件流裁剪：
    - 快照：`EventSourcingRuntimeOptions.SnapshotInterval`
-   - 裁剪：快照成功后调用 `IEventStore.DeleteEventsUpToAsync(...)`
+   - 裁剪：快照成功后通过 `IEventStoreCompactionScheduler.ScheduleAsync(...)` 记录待清理版本，在空闲期由 runtime `IActorDeactivationHookDispatcher` 分发 deactivation hooks，默认裁剪钩子触发 `RunOnIdleAsync(...)` 异步调用 `IEventStore.DeleteEventsUpToAsync(...)`
    - 保留窗口：`RetainedEventsAfterSnapshot`
 
 ### 3.2 Provider Runtime
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs b/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs
index 6e2f93b93..1814279d2 100644
--- a/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs
+++ b/src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs
@@ -22,6 +22,7 @@ public class EventSourcingBehavior<TState> : IEventSourcingBehavior<TState>
     private readonly IEventStore _eventStore;
     private readonly IEventSourcingSnapshotStore<TState>? _snapshotStore;
     private readonly ISnapshotStrategy _snapshotStrategy;
+    private readonly IEventStoreCompactionScheduler? _compactionScheduler;
     private readonly bool _enableEventCompaction;
     private readonly int _retainedEventsAfterSnapshot;
     private readonly ILogger<EventSourcingBehavior<TState>> _logger;
@@ -36,12 +37,14 @@ public EventSourcingBehavior(
         ISnapshotStrategy? snapshotStrategy = null,
         ILogger<EventSourcingBehavior<TState>>? logger = null,
         bool enableEventCompaction = false,
-        int retainedEventsAfterSnapshot = 0)
+        int retainedEventsAfterSnapshot = 0,
+        IEventStoreCompactionScheduler? compactionScheduler = null)
     {
         _eventStore = eventStore;
         _agentId = agentId;
         _snapshotStore = snapshotStore;
         _snapshotStrategy = snapshotStrategy ?? NeverSnapshotStrategy.Instance;
+        _compactionScheduler = compactionScheduler;
         _enableEventCompaction = enableEventCompaction;
         _retainedEventsAfterSnapshot = Math.Max(0, retainedEventsAfterSnapshot);
         _logger = logger ?? NullLogger<EventSourcingBehavior<TState>>.Instance;
@@ -123,7 +126,7 @@ await _snapshotStore.SaveAsync(
                 _agentId,
                 new EventSourcingSnapshot<TState>(currentState.Clone(), _currentVersion),
                 ct);
-            await TryCompactEventsAsync(ct);
+            await TryScheduleCompactionAsync(ct);
         }
         catch (Exception ex)
         {
@@ -204,34 +207,27 @@ private static string JoinEventTypes(IEnumerable<IMessage> events)
         return eventTypes.Length == 0 ? "<none>" : string.Join(",", eventTypes);
     }
 
-    private async Task TryCompactEventsAsync(CancellationToken ct)
+    private async Task TryScheduleCompactionAsync(CancellationToken ct)
     {
         if (!_enableEventCompaction)
             return;
 
+        if (_compactionScheduler == null)
+            return;
+
         var compactToVersion = _currentVersion - _retainedEventsAfterSnapshot;
         if (compactToVersion <= 0)
             return;
 
         try
         {
-            var deleted = await _eventStore.DeleteEventsUpToAsync(_agentId, compactToVersion, ct);
-            if (deleted <= 0)
-                return;
-
-            _logger.LogInformation(
-                "Event sourcing compaction completed. agentId={AgentId} compactToVersion={CompactToVersion} deletedEvents={DeletedEvents} retainedRecentEvents={RetainedRecentEvents} result={Result}",
-                _agentId,
-                compactToVersion,
-                deleted,
-                _retainedEventsAfterSnapshot,
-                "ok");
+            await _compactionScheduler.ScheduleAsync(_agentId, compactToVersion, ct);
         }
         catch (Exception ex)
         {
             _logger.LogWarning(
                 ex,
-                "Event sourcing compaction failed and will be ignored. agentId={AgentId} compactToVersion={CompactToVersion} retainedRecentEvents={RetainedRecentEvents} result={Result} errorType={ErrorType}",
+                "Event sourcing compaction scheduling failed and will be ignored. agentId={AgentId} compactToVersion={CompactToVersion} retainedRecentEvents={RetainedRecentEvents} result={Result} errorType={ErrorType}",
                 _agentId,
                 compactToVersion,
                 _retainedEventsAfterSnapshot,
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/IEventStoreCompactionScheduler.cs b/src/Aevatar.Foundation.Core/EventSourcing/IEventStoreCompactionScheduler.cs
new file mode 100644
index 000000000..e3ea992ad
--- /dev/null
+++ b/src/Aevatar.Foundation.Core/EventSourcing/IEventStoreCompactionScheduler.cs
@@ -0,0 +1,19 @@
+namespace Aevatar.Foundation.Core.EventSourcing;
+
+/// <summary>
+/// Runtime-managed scheduler for event-store compaction.
+/// Event sourcing behavior only reports compaction intents; execution timing is controlled by runtime.
+/// </summary>
+public interface IEventStoreCompactionScheduler
+{
+    /// <summary>
+    /// Registers a compaction intent for one agent stream.
+    /// Implementations should coalesce repeated requests by keeping the maximum target version.
+    /// </summary>
+    Task ScheduleAsync(string agentId, long compactToVersion, CancellationToken ct = default);
+
+    /// <summary>
+    /// Executes queued compaction for the specified agent in an idle lifecycle window.
+    /// </summary>
+    Task RunOnIdleAsync(string agentId, CancellationToken ct = default);
+}
diff --git a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
index 997f71de0..f2790ac1c 100644
--- a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
+++ b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
@@ -128,6 +128,7 @@ private IEventSourcingBehavior<TState> EnsureEventSourcingConfigured()
             var snapshotStore = options.EnableSnapshots
                 ? Services.GetService<IEventSourcingSnapshotStore<TState>>()
                 : null;
+            var compactionScheduler = Services.GetService<IEventStoreCompactionScheduler>();
             ISnapshotStrategy snapshotStrategy = options.EnableSnapshots && snapshotStore != null
                 ? new IntervalSnapshotStrategy(options.SnapshotInterval)
                 : NeverSnapshotStrategy.Instance;
@@ -139,7 +140,8 @@ private IEventSourcingBehavior<TState> EnsureEventSourcingConfigured()
                 snapshotStore,
                 snapshotStrategy,
                 options.EnableEventCompaction,
-                options.RetainedEventsAfterSnapshot);
+                options.RetainedEventsAfterSnapshot,
+                compactionScheduler);
             return EventSourcing;
         }
 
@@ -178,14 +180,16 @@ public AgentBackedEventSourcingBehavior(
             IEventSourcingSnapshotStore<TState>? snapshotStore,
             ISnapshotStrategy snapshotStrategy,
             bool enableEventCompaction,
-            int retainedEventsAfterSnapshot)
+            int retainedEventsAfterSnapshot,
+            IEventStoreCompactionScheduler? compactionScheduler)
             : base(
                 eventStore,
                 agentId,
                 snapshotStore,
                 snapshotStrategy,
                 enableEventCompaction: enableEventCompaction,
-                retainedEventsAfterSnapshot: retainedEventsAfterSnapshot)
+                retainedEventsAfterSnapshot: retainedEventsAfterSnapshot,
+                compactionScheduler: compactionScheduler)
         {
             _owner = owner;
         }
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
index d216ef5a6..24cc696d9 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
@@ -1,5 +1,6 @@
 using Aevatar.Foundation.Abstractions.TypeSystem;
 using Aevatar.Foundation.Core.TypeSystem;
+using Aevatar.Foundation.Runtime.Actors;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Actors;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming.DependencyInjection;
@@ -30,6 +31,9 @@ public static IServiceCollection AddAevatarFoundationRuntimeOrleans(
         services.TryAddTransient(typeof(IStateStore<>), typeof(RuntimeActorGrainStateStore<>));
         services.TryAddTransient(typeof(IEventSourcingSnapshotStore<>), typeof(RuntimeActorGrainEventSourcingSnapshotStore<>));
         services.TryAddSingleton<IEventStore, InMemoryEventStore>();
+        services.TryAddSingleton<IEventStoreCompactionScheduler, DeferredEventStoreCompactionScheduler>();
+        services.TryAddSingleton<IActorDeactivationHook, EventStoreCompactionDeactivationHook>();
+        services.TryAddSingleton<IActorDeactivationHookDispatcher, ActorDeactivationHookDispatcher>();
         services.TryAddSingleton<IAgentManifestStore, InMemoryManifestStore>();
         services.TryAddSingleton<IEventDeduplicator, MemoryCacheDeduplicator>();
 
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
index 9f5c33ebb..b801a69aa 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
@@ -2,6 +2,7 @@
 using Microsoft.Extensions.Logging.Abstractions;
 using Orleans.Runtime;
 using Aevatar.Foundation.Abstractions.Streaming;
+using Aevatar.Foundation.Runtime.Actors;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming;
 using Orleans.Streams;
 
@@ -17,6 +18,7 @@ public sealed class RuntimeActorGrain : Grain, IRuntimeActorGrain
         new DefaultEnvelopePropagationPolicy(new DefaultCorrelationLinkPolicy());
     private Aevatar.Foundation.Abstractions.IStreamProvider _streams = null!;
     private IRuntimeActorStateBindingAccessor? _stateBindingAccessor;
+    private IActorDeactivationHookDispatcher? _deactivationHookDispatcher;
     private ILogger<RuntimeActorGrain> _logger = NullLogger<RuntimeActorGrain>.Instance;
     private IAsyncStream<EventEnvelope>? _selfStream;
     private StreamSubscriptionHandle<EventEnvelope>? _selfStreamHandle;
@@ -33,6 +35,7 @@ public override async Task OnActivateAsync(CancellationToken cancellationToken)
         _propagationPolicy = ServiceProvider.GetService<IEnvelopePropagationPolicy>() ?? _propagationPolicy;
         _streams = ServiceProvider.GetRequiredService<Aevatar.Foundation.Abstractions.IStreamProvider>();
         _stateBindingAccessor = ServiceProvider.GetService<IRuntimeActorStateBindingAccessor>();
+        _deactivationHookDispatcher = ServiceProvider.GetService<IActorDeactivationHookDispatcher>();
 
         var loggerFactory = ServiceProvider.GetService<ILoggerFactory>();
         _logger = loggerFactory?.CreateLogger<RuntimeActorGrain>() ?? NullLogger<RuntimeActorGrain>.Instance;
@@ -57,6 +60,8 @@ public override async Task OnDeactivateAsync(DeactivationReason reason, Cancella
             await _agent.DeactivateAsync(cancellationToken);
             _agent = null;
         }
+
+        TriggerDeactivationHook();
     }
 
     public async Task<bool> InitializeAgentAsync(string agentTypeName)
@@ -293,4 +298,12 @@ private Task OnSelfStreamEventAsync(EventEnvelope envelope, StreamSequenceToken?
         return HandleEnvelopeAsync(envelope.ToByteArray());
     }
 
+    private void TriggerDeactivationHook()
+    {
+        if (_deactivationHookDispatcher == null)
+            return;
+
+        _ = _deactivationHookDispatcher.DispatchAsync(this.GetPrimaryKeyString(), CancellationToken.None);
+    }
+
 }
diff --git a/src/Aevatar.Foundation.Runtime/Actor/ActorDeactivationHookDispatcher.cs b/src/Aevatar.Foundation.Runtime/Actor/ActorDeactivationHookDispatcher.cs
new file mode 100644
index 000000000..a99a8ee6f
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime/Actor/ActorDeactivationHookDispatcher.cs
@@ -0,0 +1,45 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.Foundation.Runtime.Actors;
+
+/// <summary>
+/// Executes all registered actor deactivation hooks.
+/// Hook failures are isolated and logged without breaking deactivation path.
+/// </summary>
+public sealed class ActorDeactivationHookDispatcher : IActorDeactivationHookDispatcher
+{
+    private readonly IReadOnlyList<IActorDeactivationHook> _hooks;
+    private readonly ILogger<ActorDeactivationHookDispatcher> _logger;
+
+    public ActorDeactivationHookDispatcher(
+        IEnumerable<IActorDeactivationHook> hooks,
+        ILogger<ActorDeactivationHookDispatcher>? logger = null)
+    {
+        _hooks = hooks.ToArray();
+        _logger = logger ?? NullLogger<ActorDeactivationHookDispatcher>.Instance;
+    }
+
+    public async Task DispatchAsync(string actorId, CancellationToken ct = default)
+    {
+        if (string.IsNullOrWhiteSpace(actorId))
+            return;
+
+        for (var i = 0; i < _hooks.Count; i++)
+        {
+            var hook = _hooks[i];
+            try
+            {
+                await hook.OnDeactivatedAsync(actorId, ct);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogWarning(
+                    ex,
+                    "Actor deactivation hook failed and was ignored. actorId={ActorId} hookType={HookType}",
+                    actorId,
+                    hook.GetType().FullName);
+            }
+        }
+    }
+}
diff --git a/src/Aevatar.Foundation.Runtime/Actor/EventStoreCompactionDeactivationHook.cs b/src/Aevatar.Foundation.Runtime/Actor/EventStoreCompactionDeactivationHook.cs
new file mode 100644
index 000000000..120164d47
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime/Actor/EventStoreCompactionDeactivationHook.cs
@@ -0,0 +1,24 @@
+using Aevatar.Foundation.Core.EventSourcing;
+
+namespace Aevatar.Foundation.Runtime.Actors;
+
+/// <summary>
+/// Default deactivation hook: triggers deferred event-store compaction on actor idle.
+/// </summary>
+public sealed class EventStoreCompactionDeactivationHook : IActorDeactivationHook
+{
+    private readonly IEventStoreCompactionScheduler _compactionScheduler;
+
+    public EventStoreCompactionDeactivationHook(IEventStoreCompactionScheduler compactionScheduler)
+    {
+        _compactionScheduler = compactionScheduler;
+    }
+
+    public async Task OnDeactivatedAsync(string actorId, CancellationToken ct = default)
+    {
+        if (string.IsNullOrWhiteSpace(actorId))
+            return;
+
+        await _compactionScheduler.RunOnIdleAsync(actorId, ct);
+    }
+}
diff --git a/src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHook.cs b/src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHook.cs
new file mode 100644
index 000000000..cece1cd71
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHook.cs
@@ -0,0 +1,10 @@
+namespace Aevatar.Foundation.Runtime.Actors;
+
+/// <summary>
+/// Runtime lifecycle hook invoked after actor deactivation.
+/// Used to execute non-critical async idle tasks.
+/// </summary>
+public interface IActorDeactivationHook
+{
+    Task OnDeactivatedAsync(string actorId, CancellationToken ct = default);
+}
diff --git a/src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHookDispatcher.cs b/src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHookDispatcher.cs
new file mode 100644
index 000000000..6a6ae6115
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHookDispatcher.cs
@@ -0,0 +1,9 @@
+namespace Aevatar.Foundation.Runtime.Actors;
+
+/// <summary>
+/// Dispatches deactivation lifecycle hooks for one actor.
+/// </summary>
+public interface IActorDeactivationHookDispatcher
+{
+    Task DispatchAsync(string actorId, CancellationToken ct = default);
+}
diff --git a/src/Aevatar.Foundation.Runtime/Actor/LocalActor.cs b/src/Aevatar.Foundation.Runtime/Actor/LocalActor.cs
index 8232f3d95..541e148f2 100644
--- a/src/Aevatar.Foundation.Runtime/Actor/LocalActor.cs
+++ b/src/Aevatar.Foundation.Runtime/Actor/LocalActor.cs
@@ -15,6 +15,7 @@ public sealed class LocalActor : IActor
     private readonly EventRouter _router;
     private readonly IStreamProvider _streams;
     private readonly ILogger _logger;
+    private readonly IActorDeactivationHookDispatcher? _deactivationHookDispatcher;
     private IAsyncDisposable? _selfSubscription;
 
     public LocalActor(
@@ -22,13 +23,15 @@ public LocalActor(
         string id,
         EventRouter router,
         IStreamProvider streams,
-        ILogger logger)
+        ILogger logger,
+        IActorDeactivationHookDispatcher? deactivationHookDispatcher = null)
     {
         Agent = agent;
         Id = id;
         _router = router;
         _streams = streams;
         _logger = logger;
+        _deactivationHookDispatcher = deactivationHookDispatcher;
     }
 
     public string Id { get; }
@@ -75,6 +78,7 @@ public async Task DeactivateAsync(CancellationToken ct = default)
     {
         if (_selfSubscription != null) { await _selfSubscription.DisposeAsync(); _selfSubscription = null; }
         await Agent.DeactivateAsync(ct);
+        TriggerDeactivationHook();
     }
 
     public Task HandleEventAsync(EventEnvelope envelope, CancellationToken ct = default) =>
@@ -146,4 +150,12 @@ private async Task EnqueueAsync(EventEnvelope envelope, bool propagateFailure =
             ]);
         }
     }
+
+    private void TriggerDeactivationHook()
+    {
+        if (_deactivationHookDispatcher == null)
+            return;
+
+        _ = _deactivationHookDispatcher.DispatchAsync(Id, CancellationToken.None);
+    }
 }
diff --git a/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs b/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs
index 5369af602..e419ca934 100644
--- a/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs
+++ b/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs
@@ -23,6 +23,7 @@ public sealed class LocalActorRuntime : IActorRuntime
     private readonly IStreamProvider _streams;
     private readonly IStreamLifecycleManager _streamLifecycleManager;
     private readonly IServiceProvider _services;
+    private readonly IActorDeactivationHookDispatcher? _deactivationHookDispatcher;
     private readonly ILogger<LocalActorRuntime> _logger;
 
     /// <summary>Creates local actor runtime.</summary>
@@ -35,6 +36,7 @@ public LocalActorRuntime(
         _streams = streams;
         _services = services;
         _streamLifecycleManager = streamLifecycleManager;
+        _deactivationHookDispatcher = services.GetService<IActorDeactivationHookDispatcher>();
         _logger = logger ?? NullLogger<LocalActorRuntime>.Instance;
     }
 
@@ -56,7 +58,8 @@ public async Task<IActor> CreateAsync(System.Type agentType, string? id = null,
             actorId,
             router,
             _streams,
-            logger);
+            logger,
+            _deactivationHookDispatcher);
 
         InjectDependencies(agent, publisher, actorId, logger);
 
diff --git a/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index 5d094fe44..4f553a3e7 100644
--- a/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -66,6 +66,9 @@ public static IServiceCollection AddAevatarRuntime(
         services.TryAddSingleton(typeof(IStateStore<>), typeof(InMemoryStateStore<>));
         services.TryAddSingleton(typeof(IEventSourcingSnapshotStore<>), typeof(InMemoryEventSourcingSnapshotStore<>));
         services.TryAddSingleton<IEventStore, InMemoryEventStore>();
+        services.TryAddSingleton<IEventStoreCompactionScheduler, DeferredEventStoreCompactionScheduler>();
+        services.TryAddSingleton<IActorDeactivationHook, EventStoreCompactionDeactivationHook>();
+        services.TryAddSingleton<IActorDeactivationHookDispatcher, ActorDeactivationHookDispatcher>();
         services.TryAddSingleton<IAgentManifestStore, InMemoryManifestStore>();
 
         // Deduplication
diff --git a/src/Aevatar.Foundation.Runtime/Persistence/DeferredEventStoreCompactionScheduler.cs b/src/Aevatar.Foundation.Runtime/Persistence/DeferredEventStoreCompactionScheduler.cs
new file mode 100644
index 000000000..982933d22
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime/Persistence/DeferredEventStoreCompactionScheduler.cs
@@ -0,0 +1,84 @@
+using System.Collections.Concurrent;
+using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Core.EventSourcing;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.Foundation.Runtime.Persistence;
+
+/// <summary>
+/// Runtime-level scheduler that defers event-store compaction until explicit idle trigger.
+/// </summary>
+public sealed class DeferredEventStoreCompactionScheduler : IEventStoreCompactionScheduler
+{
+    private readonly IEventStore _eventStore;
+    private readonly ILogger<DeferredEventStoreCompactionScheduler> _logger;
+    private readonly ConcurrentDictionary<string, long> _pendingByAgent = new(StringComparer.Ordinal);
+    private readonly ConcurrentDictionary<string, SemaphoreSlim> _agentLocks = new(StringComparer.Ordinal);
+
+    public DeferredEventStoreCompactionScheduler(
+        IEventStore eventStore,
+        ILogger<DeferredEventStoreCompactionScheduler>? logger = null)
+    {
+        _eventStore = eventStore;
+        _logger = logger ?? NullLogger<DeferredEventStoreCompactionScheduler>.Instance;
+    }
+
+    public Task ScheduleAsync(string agentId, long compactToVersion, CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ct.ThrowIfCancellationRequested();
+        if (compactToVersion <= 0)
+            return Task.CompletedTask;
+
+        _pendingByAgent.AddOrUpdate(
+            agentId,
+            compactToVersion,
+            (_, current) => Math.Max(current, compactToVersion));
+        return Task.CompletedTask;
+    }
+
+    public async Task RunOnIdleAsync(string agentId, CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ct.ThrowIfCancellationRequested();
+
+        var gate = _agentLocks.GetOrAdd(agentId, static _ => new SemaphoreSlim(1, 1));
+        await gate.WaitAsync(ct);
+        try
+        {
+            if (!_pendingByAgent.TryRemove(agentId, out var compactToVersion) || compactToVersion <= 0)
+                return;
+
+            try
+            {
+                var deleted = await _eventStore.DeleteEventsUpToAsync(agentId, compactToVersion, ct);
+                _logger.LogInformation(
+                    "Event store compaction executed on idle. agentId={AgentId} compactToVersion={CompactToVersion} deletedEvents={DeletedEvents} result={Result}",
+                    agentId,
+                    compactToVersion,
+                    deleted,
+                    "ok");
+            }
+            catch (Exception ex)
+            {
+                // Requeue with latest target for best-effort retry in next idle window.
+                _pendingByAgent.AddOrUpdate(
+                    agentId,
+                    compactToVersion,
+                    (_, current) => Math.Max(current, compactToVersion));
+                _logger.LogWarning(
+                    ex,
+                    "Event store compaction on idle failed and was re-queued. agentId={AgentId} compactToVersion={CompactToVersion} result={Result} errorType={ErrorType}",
+                    agentId,
+                    compactToVersion,
+                    "failed",
+                    ex.GetType().Name);
+            }
+        }
+        finally
+        {
+            gate.Release();
+        }
+    }
+}
diff --git a/test/Aevatar.Foundation.Core.Tests/ActorDeactivationHookDispatcherTests.cs b/test/Aevatar.Foundation.Core.Tests/ActorDeactivationHookDispatcherTests.cs
new file mode 100644
index 000000000..75d3c9b39
--- /dev/null
+++ b/test/Aevatar.Foundation.Core.Tests/ActorDeactivationHookDispatcherTests.cs
@@ -0,0 +1,67 @@
+using Aevatar.Foundation.Runtime.Actors;
+using Shouldly;
+
+namespace Aevatar.Foundation.Core.Tests;
+
+public class ActorDeactivationHookDispatcherTests
+{
+    [Fact]
+    public async Task DispatchAsync_ShouldInvokeAllHooks()
+    {
+        var calls = new List<string>();
+        var dispatcher = new ActorDeactivationHookDispatcher(
+        [
+            new CallbackHook(id => calls.Add($"h1:{id}")),
+            new CallbackHook(id => calls.Add($"h2:{id}")),
+        ]);
+
+        await dispatcher.DispatchAsync("actor-1");
+
+        calls.ShouldBe(["h1:actor-1", "h2:actor-1"]);
+    }
+
+    [Fact]
+    public async Task DispatchAsync_WhenOneHookThrows_ShouldContinue()
+    {
+        var calls = new List<string>();
+        var dispatcher = new ActorDeactivationHookDispatcher(
+        [
+            new CallbackHook(_ => throw new InvalidOperationException("hook-failed")),
+            new CallbackHook(id => calls.Add($"ok:{id}")),
+        ]);
+
+        await dispatcher.DispatchAsync("actor-2");
+
+        calls.ShouldBe(["ok:actor-2"]);
+    }
+
+    [Fact]
+    public async Task DispatchAsync_WhenActorIdIsEmpty_ShouldSkip()
+    {
+        var called = false;
+        var dispatcher = new ActorDeactivationHookDispatcher(
+        [
+            new CallbackHook(_ => called = true),
+        ]);
+
+        await dispatcher.DispatchAsync("");
+
+        called.ShouldBeFalse();
+    }
+
+    private sealed class CallbackHook : IActorDeactivationHook
+    {
+        private readonly Action<string> _callback;
+
+        public CallbackHook(Action<string> callback)
+        {
+            _callback = callback;
+        }
+
+        public Task OnDeactivatedAsync(string actorId, CancellationToken ct = default)
+        {
+            _callback(actorId);
+            return Task.CompletedTask;
+        }
+    }
+}
diff --git a/test/Aevatar.Foundation.Core.Tests/DeferredEventStoreCompactionSchedulerTests.cs b/test/Aevatar.Foundation.Core.Tests/DeferredEventStoreCompactionSchedulerTests.cs
new file mode 100644
index 000000000..5ce4c2c49
--- /dev/null
+++ b/test/Aevatar.Foundation.Core.Tests/DeferredEventStoreCompactionSchedulerTests.cs
@@ -0,0 +1,120 @@
+using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Runtime.Persistence;
+using Google.Protobuf;
+using Google.Protobuf.WellKnownTypes;
+using Shouldly;
+
+namespace Aevatar.Foundation.Core.Tests;
+
+public class DeferredEventStoreCompactionSchedulerTests
+{
+    [Fact]
+    public async Task ScheduleAsync_ShouldOnlyRecordIntent_AndDeleteOnIdle()
+    {
+        var store = new InMemoryEventStore();
+        await AppendEventsAsync(store, "agent-1", 3);
+        var scheduler = new DeferredEventStoreCompactionScheduler(store);
+
+        await scheduler.ScheduleAsync("agent-1", 2);
+
+        (await store.GetEventsAsync("agent-1")).Count.ShouldBe(3);
+
+        await scheduler.RunOnIdleAsync("agent-1");
+
+        var remaining = await store.GetEventsAsync("agent-1");
+        remaining.Count.ShouldBe(1);
+        remaining[0].Version.ShouldBe(3);
+        (await store.GetVersionAsync("agent-1")).ShouldBe(3);
+    }
+
+    [Fact]
+    public async Task ScheduleAsync_ShouldCoalesceToMaxTargetVersion()
+    {
+        var store = new InMemoryEventStore();
+        await AppendEventsAsync(store, "agent-2", 5);
+        var scheduler = new DeferredEventStoreCompactionScheduler(store);
+
+        await scheduler.ScheduleAsync("agent-2", 2);
+        await scheduler.ScheduleAsync("agent-2", 4);
+        await scheduler.ScheduleAsync("agent-2", 3);
+        await scheduler.RunOnIdleAsync("agent-2");
+
+        var remaining = await store.GetEventsAsync("agent-2");
+        remaining.Count.ShouldBe(1);
+        remaining[0].Version.ShouldBe(5);
+    }
+
+    [Fact]
+    public async Task RunOnIdleAsync_WhenDeleteFails_ShouldRequeueForNextIdle()
+    {
+        var innerStore = new InMemoryEventStore();
+        await AppendEventsAsync(innerStore, "agent-3", 3);
+        var flakyStore = new FlakyDeleteEventStore(innerStore);
+        var scheduler = new DeferredEventStoreCompactionScheduler(flakyStore);
+
+        await scheduler.ScheduleAsync("agent-3", 2);
+        await scheduler.RunOnIdleAsync("agent-3");
+
+        (await innerStore.GetEventsAsync("agent-3")).Count.ShouldBe(3);
+
+        await scheduler.RunOnIdleAsync("agent-3");
+
+        var remaining = await innerStore.GetEventsAsync("agent-3");
+        remaining.Count.ShouldBe(1);
+        remaining[0].Version.ShouldBe(3);
+        flakyStore.DeleteCalls.ShouldBe(2);
+    }
+
+    private static async Task AppendEventsAsync(IEventStore store, string agentId, int count)
+    {
+        var events = Enumerable.Range(1, count).Select(i => new StateEvent
+        {
+            EventId = $"{agentId}-e-{i}",
+            Timestamp = Timestamp.FromDateTime(DateTime.UtcNow),
+            Version = i,
+            EventType = typeof(Empty).FullName ?? nameof(Empty),
+            EventData = Any.Pack(new Empty()),
+            AgentId = agentId,
+        });
+
+        await store.AppendAsync(agentId, events, expectedVersion: 0);
+    }
+
+    private sealed class FlakyDeleteEventStore : IEventStore
+    {
+        private readonly InMemoryEventStore _inner;
+        private int _deleteCalls;
+
+        public FlakyDeleteEventStore(InMemoryEventStore inner)
+        {
+            _inner = inner;
+        }
+
+        public int DeleteCalls => _deleteCalls;
+
+        public Task<long> AppendAsync(
+            string agentId,
+            IEnumerable<StateEvent> events,
+            long expectedVersion,
+            CancellationToken ct = default)
+            => _inner.AppendAsync(agentId, events, expectedVersion, ct);
+
+        public Task<IReadOnlyList<StateEvent>> GetEventsAsync(
+            string agentId,
+            long? fromVersion = null,
+            CancellationToken ct = default)
+            => _inner.GetEventsAsync(agentId, fromVersion, ct);
+
+        public Task<long> GetVersionAsync(string agentId, CancellationToken ct = default)
+            => _inner.GetVersionAsync(agentId, ct);
+
+        public Task<long> DeleteEventsUpToAsync(string agentId, long toVersion, CancellationToken ct = default)
+        {
+            var callNo = Interlocked.Increment(ref _deleteCalls);
+            if (callNo == 1)
+                throw new InvalidOperationException("delete-failure-once");
+
+            return _inner.DeleteEventsUpToAsync(agentId, toVersion, ct);
+        }
+    }
+}
diff --git a/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs b/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
index 68e5222ff..9eb13b543 100644
--- a/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
+++ b/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
@@ -160,27 +160,34 @@ public async Task PersistSnapshotAsync_WhenSnapshotSaveFails_ShouldNotThrowAndSh
     }
 
     [Fact]
-    public async Task PersistSnapshotAsync_WhenCompactionEnabled_ShouldDeleteHistoricalEvents_AndKeepReplayWorking()
+    public async Task PersistSnapshotAsync_WhenCompactionEnabled_ShouldDeferDeletion_UntilDeferredCompactionRuns()
     {
         var store = new InMemoryEventStore();
         var snapshotStore = new InMemoryEventSourcingSnapshotStore<CounterState>();
+        var scheduler = new DeferredEventStoreCompactionScheduler(store);
         var behavior = new CounterEventSourcingBehavior(
             store,
             "agent-snapshot-compact",
             snapshotStore: snapshotStore,
             snapshotStrategy: new IntervalSnapshotStrategy(1),
             enableEventCompaction: true,
-            retainedEventsAfterSnapshot: 0);
+            retainedEventsAfterSnapshot: 0,
+            compactionScheduler: scheduler);
 
         behavior.RaiseEvent(new IncrementEvent { Amount = 4 });
         behavior.RaiseEvent(new IncrementEvent { Amount = 6 });
         await behavior.ConfirmEventsAsync();
         await behavior.PersistSnapshotAsync(new CounterState { Count = 10, Name = "snapshot" });
 
-        var version = await store.GetVersionAsync("agent-snapshot-compact");
         var events = await store.GetEventsAsync("agent-snapshot-compact");
+        events.Count.ShouldBe(2);
+
+        await scheduler.RunOnIdleAsync("agent-snapshot-compact");
+
+        var version = await store.GetVersionAsync("agent-snapshot-compact");
+        var compacted = await store.GetEventsAsync("agent-snapshot-compact");
         version.ShouldBe(2);
-        events.ShouldBeEmpty();
+        compacted.ShouldBeEmpty();
 
         var replayed = await behavior.ReplayAsync("agent-snapshot-compact");
         replayed.ShouldNotBeNull();
@@ -246,14 +253,16 @@ public CounterEventSourcingBehavior(
             IEventSourcingSnapshotStore<CounterState>? snapshotStore = null,
             ISnapshotStrategy? snapshotStrategy = null,
             bool enableEventCompaction = false,
-            int retainedEventsAfterSnapshot = 0)
+            int retainedEventsAfterSnapshot = 0,
+            IEventStoreCompactionScheduler? compactionScheduler = null)
             : base(
                 eventStore,
                 agentId,
                 snapshotStore,
                 snapshotStrategy,
                 enableEventCompaction: enableEventCompaction,
-                retainedEventsAfterSnapshot: retainedEventsAfterSnapshot) { }
+                retainedEventsAfterSnapshot: retainedEventsAfterSnapshot,
+                compactionScheduler: compactionScheduler) { }
 
         public override CounterState TransitionState(CounterState current, IMessage evt)
             => StateTransitionMatcher
diff --git a/test/Aevatar.Foundation.Core.Tests/EventStoreCompactionDeactivationHookTests.cs b/test/Aevatar.Foundation.Core.Tests/EventStoreCompactionDeactivationHookTests.cs
new file mode 100644
index 000000000..a2728bf10
--- /dev/null
+++ b/test/Aevatar.Foundation.Core.Tests/EventStoreCompactionDeactivationHookTests.cs
@@ -0,0 +1,72 @@
+using Aevatar.Foundation.Core.EventSourcing;
+using Aevatar.Foundation.Runtime.Actors;
+using Shouldly;
+
+namespace Aevatar.Foundation.Core.Tests;
+
+public class EventStoreCompactionDeactivationHookTests
+{
+    [Fact]
+    public async Task OnDeactivatedAsync_ShouldInvokeSchedulerWithActorId()
+    {
+        var scheduler = new RecordingScheduler();
+        var hook = new EventStoreCompactionDeactivationHook(scheduler);
+
+        await hook.OnDeactivatedAsync("actor-1");
+
+        scheduler.Calls.ShouldBe(1);
+        scheduler.LastActorId.ShouldBe("actor-1");
+    }
+
+    [Fact]
+    public async Task OnDeactivatedAsync_WhenSchedulerThrows_ShouldBubble()
+    {
+        var scheduler = new ThrowingScheduler();
+        var hook = new EventStoreCompactionDeactivationHook(scheduler);
+
+        await Should.ThrowAsync<InvalidOperationException>(() => hook.OnDeactivatedAsync("actor-2"));
+
+        scheduler.Calls.ShouldBe(1);
+    }
+
+    [Fact]
+    public async Task OnDeactivatedAsync_WhenActorIdIsEmpty_ShouldSkip()
+    {
+        var scheduler = new RecordingScheduler();
+        var hook = new EventStoreCompactionDeactivationHook(scheduler);
+
+        await hook.OnDeactivatedAsync(" ");
+
+        scheduler.Calls.ShouldBe(0);
+    }
+
+    private sealed class RecordingScheduler : IEventStoreCompactionScheduler
+    {
+        public int Calls { get; private set; }
+        public string? LastActorId { get; private set; }
+
+        public Task ScheduleAsync(string agentId, long compactToVersion, CancellationToken ct = default)
+            => Task.CompletedTask;
+
+        public Task RunOnIdleAsync(string agentId, CancellationToken ct = default)
+        {
+            Calls++;
+            LastActorId = agentId;
+            return Task.CompletedTask;
+        }
+    }
+
+    private sealed class ThrowingScheduler : IEventStoreCompactionScheduler
+    {
+        public int Calls { get; private set; }
+
+        public Task ScheduleAsync(string agentId, long compactToVersion, CancellationToken ct = default)
+            => Task.CompletedTask;
+
+        public Task RunOnIdleAsync(string agentId, CancellationToken ct = default)
+        {
+            Calls++;
+            throw new InvalidOperationException("scheduler-failed");
+        }
+    }
+}

From 0984e469a0d01627a8a89c3f1da09c17f26d813c Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Tue, 24 Feb 2026 01:05:40 +0800
Subject: [PATCH 09/46] Refactor Workflow Projection Registration and Enhance
 ReadModel Provider Integration

- Updated the `WorkflowCapabilityServiceCollectionExtensions` to decouple ReadModel provider registration from the infrastructure layer, promoting a cleaner architecture.
- Introduced `WorkflowReadModelStartupValidationHostedService` to validate ReadModel provider capabilities during host startup, ensuring proper configuration and preventing runtime errors.
- Enhanced documentation to clarify the new provider registration process and startup validation features, aiding developer understanding.
- Added tests to verify the functionality of the new validation service and ensure correct behavior under various configurations.
- Updated CI guards to enforce architectural constraints regarding provider registrations, maintaining code quality and consistency.
---
 ...ng-elasticsearch-readmodel-requirements.md | 471 ++++++++++++------
 .../Aevatar.Workflow.Infrastructure.csproj    |   3 -
 ...owCapabilityServiceCollectionExtensions.cs |  31 --
 .../Aevatar.Workflow.Infrastructure/README.md |   2 +
 .../Aevatar.Workflow.Projection.csproj        |   1 +
 .../WorkflowExecutionProjectionOptions.cs     |   5 +
 .../ServiceCollectionExtensions.cs            |   2 +
 ...ReadModelStartupValidationHostedService.cs |  82 +++
 .../Aevatar.Workflow.Projection/README.md     |   5 +-
 ...Aevatar.Workflow.Extensions.Hosting.csproj |   4 +
 ...WorkflowCapabilityHostBuilderExtensions.cs |   1 +
 ...tionProviderServiceCollectionExtensions.cs |  58 +++
 .../AIGAgentBaseToolRefreshTests.cs           |  64 +++
 ...lowExecutionProjectionRegistrationTests.cs |  53 ++
 .../WorkflowHostingExtensionsCoverageTests.cs |  32 ++
 tools/ci/architecture_guards.sh               |  22 +
 16 files changed, 640 insertions(+), 196 deletions(-)
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
 create mode 100644 src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs

diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index 9218c2143..73ce5907b 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -1,163 +1,314 @@
-# Generic Event Sourcing + Provider ReadModel 需求与重构计划（必要文档）
+# Generic Event Sourcing + Provider ReadModel 全量重构执行文档（Detailed Refactor Blueprint）
 
-## 1. 文档定位
+## 1. 文档元信息
 - 状态：Active
+- 版本：v3.1
 - 日期：2026-02-23
-- 目的：作为 Event Sourcing 与 Provider-Based ReadModel 的唯一执行文档（需求 + 计划一体化）。
-- 范围：Foundation（ES）+ CQRS Projection（Provider Runtime）+ Workflow（接入层）。
-- 兼容策略：以清晰正确为第一目标，不保留历史兼容壳。
-
-## 2. 架构硬约束
-1. 有状态 Actor 必须 Event Sourcing，`EventStore` 是事实源。
-2. `Command -> Domain Event -> Apply -> State`，开发者显式构建 event。
-3. ReadModel Provider 必须通用化，不绑定 Workflow 业务域。
-4. CQRS 与 AGUI 必须共用同一 Projection Pipeline，不得双轨。
-5. 中间层不得维护 `actor/run/session` 事实态进程内映射。
-6. Runtime 不得通过反射注入 ES（`MakeGenericType` / `GetProperty().SetValue`）。
-
-## 3. 当前代码基线（已验证）
-### 3.1 Event Sourcing
-- 契约：`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs`
-- 实现：`src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`
-- 裁剪调度抽象：`src/Aevatar.Foundation.Core/EventSourcing/IEventStoreCompactionScheduler.cs`
-- 运行时裁剪调度实现：`src/Aevatar.Foundation.Runtime/Persistence/DeferredEventStoreCompactionScheduler.cs`
-- 状态转换扩展：`src/Aevatar.Foundation.Core/EventSourcing/IStateEventApplier.cs`
-- Typed 状态转换基类：`src/Aevatar.Foundation.Core/EventSourcing/StateEventApplierBase.cs`
-- 状态匹配器：`src/Aevatar.Foundation.Core/EventSourcing/StateTransitionMatcher.cs`
-- 生命周期：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs`
-- Runtime 停用钩子抽象：`src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHook.cs`
-- Runtime 停用钩子分发器：`src/Aevatar.Foundation.Runtime/Actor/IActorDeactivationHookDispatcher.cs`
-- Runtime 停用钩子分发实现：`src/Aevatar.Foundation.Runtime/Actor/ActorDeactivationHookDispatcher.cs`
-- Runtime 默认裁剪钩子：`src/Aevatar.Foundation.Runtime/Actor/EventStoreCompactionDeactivationHook.cs`
-- 本地持久化 EventStore 基线：`src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs`
-- 运行时注入边界：
-  - `src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs`
-  - `src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs`
-
-当前语义：
-1. `ActivateAsync` 强制 Replay 恢复状态。
-2. `DeactivateAsync` 强制 `ConfirmEventsAsync + PersistSnapshotAsync`。
-3. `GAgentBase<TState>` 不再暴露 `StateStore` 事实通道。
-4. 未设置 `EventSourcing` 时，`GAgentBase<TState>` 在泛型上下文内用 `IEventStore` 静态构造 `AgentBackedEventSourcingBehavior`（继承 `EventSourcingBehavior<TState>`）。
-5. 缺失 `IEventStore` 时 fail-fast。
-6. `ConfirmDerivedEventsAsync` / `IDomainEventDeriver` / `EventSourcingAutoPersistenceOptions` 已从主链路移除。
-7. 运行期通过 `PersistDomainEventAsync` / `PersistDomainEventsAsync` 执行“持久化 + 顺序 apply”；Replay 主要用于激活恢复。
-8. `TransitionState` 可由 Agent override 或 `IStateEventApplier<TState>` 组合实现。
-9. 默认启用自动快照与事件流裁剪：
-   - 快照：`EventSourcingRuntimeOptions.SnapshotInterval`
-   - 裁剪：快照成功后通过 `IEventStoreCompactionScheduler.ScheduleAsync(...)` 记录待清理版本，在空闲期由 runtime `IActorDeactivationHookDispatcher` 分发 deactivation hooks，默认裁剪钩子触发 `RunOnIdleAsync(...)` 异步调用 `IEventStore.DeleteEventsUpToAsync(...)`
-   - 保留窗口：`RetainedEventsAfterSnapshot`
-
-### 3.2 Provider Runtime
-- 抽象：`src/Aevatar.CQRS.Projection.Abstractions`
-- 运行时：`src/Aevatar.CQRS.Projection.Runtime`
-- Provider：
-  - InMemory：`src/Aevatar.CQRS.Projection.Providers.InMemory`
-  - Elasticsearch：`src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
-  - Neo4j：`src/Aevatar.CQRS.Projection.Providers.Neo4j`
-- StateMirror：`src/Aevatar.CQRS.Projection.StateMirror`
-
-当前语义：
-1. Provider 通过 `IProjectionReadModelStoreRegistration<TReadModel, TKey>` 注册。
-2. Store 由 `ProviderRegistry + ProviderSelector + BindingResolver + StoreFactory` 统一创建。
-3. 多 Provider 并存时必须显式指定 provider；否则选择失败。
-4. 能力不匹配默认 fail-fast（`FailOnUnsupportedCapabilities=true`）。
-5. InMemory / Elasticsearch / Neo4j 写路径均输出统一结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
-6. Provider 端到端回归支持环境变量门控集成测试与一键 smoke 脚本：
-   - `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs`
-   - `tools/ci/projection_provider_e2e_smoke.sh`
-
-### 3.3 Workflow 接入
-- 组合入口：`src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`
-- 投影 DI：`src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`
-
-当前语义：
-1. Workflow 已接入 InMemory + Elasticsearch + Neo4j 三类 Provider 注册。
-2. `Projection:ReadModel:*` 全局选项会映射到 Workflow 投影选项。
-3. `ReadModelMode=StateOnly` 在 Workflow 组合阶段被拒绝（明确 fail-fast）。
-
-## 4. 需求清单（必须满足）
-
-### R-ES-01 强制事件优先
-- 所有 `GAgentBase<TState>` 子类必须基于领域事件恢复状态，不得以快照替代事实。
-
-### R-ES-02 显式事件构建
-- 命令处理逻辑必须显式 `RaiseEvent`，不得依赖自动事件推导。
-
-### R-ES-03 可重放同态
-- 在线状态变更必须可通过 Replay 重建到同一结果。
-
-### R-ES-04 静态泛型装配
-- ES 行为构造必须在泛型上下文完成，不得回退到 Runtime 反射注入。
-
-### R-ES-05 状态转换可组合
-- `event -> state` 转换必须支持模块化拆分，避免在单个 Agent 中膨胀式 `switch`。
-- 支持 `IStateEventApplier<TState>` 组合式 apply，顺序由 `Order` 控制。
-- CI 必须禁止 `GAgentBase<TState>` 全继承链（含间接继承）子类直接修改 `State.xxx`，强制通过领域事件 + apply 路径变更状态。
-
-### R-RM-01 Provider 解耦业务
-- Provider 项目不得引用 Workflow/AI 业务读模型类型。
-
-### R-RM-02 能力协商
-- Provider 必须声明能力（索引类型、alias、schema 校验），ReadModel 需求必须在启动期校验。
-
-### R-RM-03 路由确定性
-- 多 Provider 并存时必须可预测选择，不允许隐式随机或“最后注册覆盖”语义。
-
-### R-RM-04 统一观测
-- Provider 写路径必须记录结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
-
-### R-WF-01 Workflow 仅消费抽象
-- Workflow 层只依赖 Provider Runtime 抽象，不实现后端存储细节。
-
-### R-WF-02 单链路投影
-- Workflow CQRS 与 AGUI 必须从同一订阅与分发链路进入，不得维护平行投影系统。
-
-### R-GOV-01 门禁强制
-- 必须通过：
-  - `bash tools/ci/architecture_guards.sh`
-  - `bash tools/ci/projection_route_mapping_guard.sh`
-  - `bash tools/ci/test_stability_guards.sh`
-
-## 5. 重构计划（按优先级）
-
-### P1（已完成）ES 强制化主链路
-1. 移除自动反推事件接口与实现。
-2. `GAgentBase<TState>` 生命周期切换到 Replay + Confirm。
-3. Runtime 去除 ES 反射注入路径。
-
-### P2（已完成）Provider Runtime 主干
-1. 建立 Provider 注册/选择/校验/创建主链路。
-2. 落地 InMemory/Elasticsearch/Neo4j 三类 Provider。
-3. Workflow 接入统一 Provider 选择逻辑。
-
-### P3（进行中）一致性与可维护性收口
-1. 清理文档与代码中的历史双轨口径。
-2. 补齐跨模块契约测试：`Command -> Events -> Replay -> State`。
-3. 收敛 state transition 模型（Agent override + applier 组合）。
-4. 统一配置示例与错误合同说明（启动失败与能力不匹配）。
-
-### P4（待执行）性能与生产化增强
-1. 为持久化 `IEventStore` 提供生产落地方案与压测基线（已落地本地持久化基线：`FileEventStore`，生产级后端仍待接入）。
-2. 补齐 Elasticsearch/Neo4j 端到端集成脚本与回归套件（已落地基础 smoke + env-gated e2e，后续补 CI 常态化接入与更高负载回归）。
-3. 细化快照策略与回放窗口控制（已落地自动快照 + 裁剪基础能力，后续补压测驱动的阈值治理）。
-
-## 6. 验收标准（DoD）
-1. 有状态 Actor 恢复路径全部来自 Replay，不存在 `StateStore.Load/Save` 事实回路。
-2. Runtime/Core 不存在 ES 反射注入路径。
-3. Provider 由统一 Runtime 选择并可校验能力。
-4. Workflow 仅作为 Provider Runtime 消费方，不绑定 ES/Neo4j 实现细节。
-5. 架构门禁、核心测试全绿。
-
-## 7. 验证命令
-- `dotnet test test/Aevatar.Foundation.Core.Tests/Aevatar.Foundation.Core.Tests.csproj --nologo`
-- `dotnet test test/Aevatar.Foundation.Runtime.Hosting.Tests/Aevatar.Foundation.Runtime.Hosting.Tests.csproj --nologo`
-- `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
-- `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
-- `bash tools/ci/architecture_guards.sh`
-- `bash tools/ci/projection_provider_e2e_smoke.sh`
-
-## 8. 变更原则
-1. 删除优先于兼容。
-2. 文档必须与当前代码语义一致，不保留“未来可能”但无代码支撑的条目。
-3. 任何新扩展（Provider/ES）都必须接入现有主链路，不得开第二系统。
+- 适用范围：`src/`、`test/`、`tools/ci/`、`docs/architecture/`
+- 文档定位：唯一重构执行蓝图（需求、现状、差距、任务包、验收、门禁）
+- 执行原则：删除优先于兼容，不保留历史兼容壳
+- 最近门禁校验：`bash tools/ci/architecture_guards.sh`（2026-02-23，通过）
+
+## 2. 背景与关键决策（统一认知）
+
+### 2.1 EventStore 的语义边界
+1. EventStore 存储的是领域事件流（`StateEvent` 封装），不是状态快照流。
+2. 快照是恢复加速器，不是事实源。
+3. 有状态 Actor 的恢复语义必须是 `Replay(EventStore) + 可选Snapshot加速`。
+4. 事件处理（`TransitionState` / `IStateEventApplier<TState>`）与事件存储（`IEventStore`）是两个解耦关注点，可以并存，不冲突。
+
+### 2.2 强制 Event Sourcing
+1. 所有继承 `GAgentBase<TState>`（含间接继承）的有状态 Actor，必须走 `Command -> Domain Event -> Apply -> State`。
+2. 不允许“可选开启 EventStore”的业务语义分叉。
+3. 不允许自动生成状态快照事件替代领域事件。
+
+### 2.3 快照与历史清理
+1. 快照由 `EventSourcingRuntimeOptions` + `ISnapshotStrategy` 控制。
+2. 历史事件清理由 `IEventStoreCompactionScheduler` 负责，采用“先登记、后异步执行”。
+3. 执行时机在 Actor runtime 生命周期空闲点（deactivation hook），不是命令热路径同步删除。
+
+### 2.4 Projection Provider 的职责边界
+1. Provider（InMemory/Elasticsearch/Neo4j）只负责读模型存储能力，不绑定 Workflow/AI 业务语义。
+2. Workflow 必须消费 Projection Runtime 抽象，不应直接依赖 `Providers.*`。
+3. CQRS 与 AGUI 复用同一 Projection Pipeline 输入，不允许双轨实现。
+
+## 3. 重构目标
+1. 建立唯一写侧事实源：EventStore（强制事件优先）。
+2. 建立可验证的状态演进链：显式领域事件 + 可重放同态。
+3. 建立 Provider Runtime 单主链路：注册、选择、能力校验、Store 创建、观测统一。
+4. 消除 Workflow 对具体 Provider 的基础设施耦合。
+5. 建立启动期 fail-fast 与 CI 架构门禁，防止回归。
+
+## 4. 范围与非范围
+
+### 4.1 范围
+- Foundation ES（Core + Runtime + Orleans runtime 接入）
+- CQRS Projection Runtime（Abstractions/Core/Runtime + Providers）
+- Workflow Projection 接入（Application/Projection/Infrastructure/Host）
+- CI 架构门禁与测试合同
+
+### 4.2 非范围
+- 不定义业务 DSL 设计细节。
+- 不展开 Elasticsearch/Neo4j 运维参数最佳实践。
+- 不保留历史兼容路径或双写迁移壳。
+
+## 5. 架构硬约束（必须满足）
+1. 有状态 Actor 必须 Event Sourcing，恢复事实源仅来自 EventStore replay。
+2. 命令侧必须显式产出领域事件，不允许自动反推事件。
+3. 禁止在有状态 Actor 中直接修改 `State.*`（含间接继承链）。
+4. Runtime 禁止反射注入 ES（`MakeGenericType` / `GetProperty().SetValue`）。
+5. Projection Provider 项目禁止依赖 Workflow/AI 业务项目。
+6. Workflow.Infrastructure 禁止直接依赖 `Aevatar.CQRS.Projection.Providers.*`。
+7. Projection 中间层禁止持久事实态进程内 ID 映射（actor/run/session/entity）。
+8. CQRS 与 AGUI 必须共享同一投影输入链路。
+
+## 6. 当前基线（代码事实）
+
+### 6.1 Event Sourcing 主链路（已落地）
+- 核心类：
+  - `src/Aevatar.Foundation.Core/GAgentBase.TState.cs`
+  - `src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`
+- 已生效语义：
+  1. `ActivateAsync` 强制 `ReplayAsync` 恢复状态。
+  2. `PersistDomainEventsAsync` 强制显式 `RaiseEvent -> ConfirmEventsAsync -> Apply`。
+  3. `DeactivateAsync` 执行 `ConfirmEventsAsync + PersistSnapshotAsync`。
+  4. `State` setter 受 `StateGuard.EnsureWritable()` 约束。
+  5. `EnsureNoStateSnapshotEvents()` 禁止把 `TState` 当事件写入 EventStore。
+
+### 6.2 快照 + 异步清理（已落地）
+- 关键抽象与实现：
+  - `src/Aevatar.Foundation.Core/EventSourcing/IEventStoreCompactionScheduler.cs`
+  - `src/Aevatar.Foundation.Runtime/Persistence/DeferredEventStoreCompactionScheduler.cs`
+  - `src/Aevatar.Foundation.Runtime/Actor/EventStoreCompactionDeactivationHook.cs`
+  - `src/Aevatar.Foundation.Runtime/Actor/ActorDeactivationHookDispatcher.cs`
+- 当前行为：
+  1. 快照成功后只调度清理意图。
+  2. 清理由 runtime deactivation hook 异步执行。
+  3. 删除调用是 `IEventStore.DeleteEventsUpToAsync(...)`，不阻塞命令处理主路径。
+
+### 6.3 Provider Runtime（已落地）
+- 运行时主干：
+  - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs`
+  - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs`
+- Provider 项目：
+  - `src/Aevatar.CQRS.Projection.Providers.InMemory`
+  - `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
+  - `src/Aevatar.CQRS.Projection.Providers.Neo4j`
+- 当前行为：
+  1. 多 Provider 未显式指定时直接失败（确定性路由）。
+  2. 能力不匹配且开启 fail-fast 时抛异常。
+  3. Provider 写路径日志结构已统一。
+
+### 6.4 Workflow 接入现状（已完成）
+- 入口：
+  - `src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`
+  - `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
+- 当前行为：
+  1. `Workflow.Infrastructure` 不再直接依赖或注册 `Providers.*`。
+  2. Provider 注册统一下沉到 Host/Extensions 层（`AddWorkflowProjectionReadModelProviders(...)`）。
+  3. `AddWorkflowCapabilityWithAIDefaults(...)` 统一装配 AI + Workflow + Provider 组合。
+
+### 6.5 门禁现状（已落地）
+- `tools/ci/architecture_guards.sh` 已覆盖：
+  1. 反射 ES 注入禁用。
+  2. Stateful Actor 直写 `State.*` 禁用（含继承链扫描）。
+  3. Provider 业务依赖禁用。
+  4. 中间层 ID 映射事实态禁用。
+  5. `Workflow.Infrastructure` 禁止引用/using `Aevatar.CQRS.Projection.Providers.*`。
+
+### 6.6 启动期能力预校验现状（已落地）
+- 关键实现：
+  - `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs`
+  - `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`
+- 当前行为：
+  1. Host 启动阶段执行 read-model provider 选择 + 能力校验 dry-run。
+  2. provider 缺失或能力不匹配可在启动阶段 fail-fast。
+  3. 可通过 `WorkflowExecutionProjection:ValidateReadModelProviderOnStartup` 控制启用（默认开启）。
+
+## 7. 需求分解与状态矩阵
+
+| ID | 需求 | 验收标准 | 当前状态 | 证据 | 差距 |
+|---|---|---|---|---|---|
+| R-ES-01 | 强制事件优先恢复 | 所有 `GAgentBase<TState>` 恢复来自 replay | Done | `GAgentBase.TState.cs` | 无 |
+| R-ES-02 | 显式事件构建 | 无自动派生事件主链路 | Done | `PersistDomainEventsAsync` + 守卫脚本 | 无 |
+| R-ES-03 | 回放同态 | 关键 actor 有统一合同测试 | Partial | `EventSourcingTests.cs` 等 | 缺全类别标准化合同矩阵 |
+| R-ES-04 | 静态装配 ES 行为 | Runtime 无反射注入 | Done | `architecture_guards.sh` | 无 |
+| R-ES-05 | 禁止直写 State | 含间接继承链全部受控 | Done | `StateGuard` + awk 扫描门禁 | 无 |
+| R-ES-06 | 快照后异步清理 | 由 runtime 空闲机制执行删除 | Done | `DeferredEventStoreCompactionScheduler` + hook | 无 |
+| R-RM-01 | Provider 业务解耦 | Provider 不引用 Workflow/AI | Done | 门禁 + Provider csproj | 无 |
+| R-RM-02 | 路由确定性 | 多 provider 未指定时报错 | Done | `ProjectionReadModelProviderSelector` | 无 |
+| R-RM-03 | 启动期全量能力校验 | Host 启动时全绑定 fail-fast | Done | `WorkflowReadModelStartupValidationHostedService` + 测试 | 无 |
+| R-RM-04 | 统一观测 | provider 写成功/失败日志规范统一 | Done | provider store 三实现 | 无 |
+| R-WF-01 | Workflow 仅依赖抽象 | Workflow.Infrastructure 不依赖 `Providers.*` | Done | Infrastructure csproj + DI 已去 Provider 引用 | 无 |
+| R-WF-02 | 单投影主链路 | AGUI 与 CQRS 共 pipeline 输入 | Done | `WorkflowExecutionAGUIEventProjector` | 无 |
+| R-GOV-01 | 架构规则可自动化验证 | 规则进入 CI 门禁 | Done | `architecture_guards.sh` 新增 Workflow->Providers 规则 | 无 |
+
+## 8. 差距详解
+
+### 8.1 Gap-C（R-ES-03）Replay 合同覆盖不足
+- 现有测试覆盖核心路径，但缺“新增关键 actor 必须关联合同测试”的制度化约束。
+
+### 8.2 Gap-P（生产化）EventStore 生产后端与压测基线未闭环
+- 当前 `IEventStore` 仍以 InMemory/File 为主。
+- 尚未建立容量压测与参数治理基线（快照间隔、保留事件数、压缩频率）。
+
+## 9. 目标架构
+
+### 9.1 分层与依赖方向
+1. Domain：事件定义、状态模型、状态转移契约。
+2. Application：编排端口与用例，不依赖 Provider 具体实现。
+3. Infrastructure：技术实现但仍依赖抽象；Workflow.Infrastructure 不拼 Provider。
+4. Host/Extensions：负责具体 Provider 组合与配置绑定。
+
+### 9.2 Event Sourcing 目标链路
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    E1["Command Handler"] --> E2["RaiseEvent / PersistDomainEventsAsync"]
+    E2 --> E3["IEventSourcingBehavior.ConfirmEventsAsync"]
+    E3 --> E4["IEventStore.AppendAsync"]
+    E4 --> E5["TransitionState / IStateEventApplier"]
+    E5 --> E6["In-Memory State"]
+    E6 --> E7["PersistSnapshotAsync"]
+    E7 --> E8["IEventStoreCompactionScheduler.ScheduleAsync"]
+    E8 --> E9["Runtime Deactivation Hook Dispatcher"]
+    E9 --> E10["EventStoreCompactionDeactivationHook"]
+    E10 --> E11["IEventStore.DeleteEventsUpToAsync"]
+```
+
+### 9.3 Projection Provider 目标链路
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    P1["Projection Runtime"] --> P2["Provider Registry"]
+    P2 --> P3["Provider Selector"]
+    P3 --> P4["Capability Validator"]
+    P4 --> P5["Store Factory"]
+    P5 --> P6["IProjectionReadModelStore"]
+    P1 --> P7["Projector: ReadModel"]
+    P1 --> P8["Projector: AGUI"]
+```
+
+### 9.4 Workflow 目标边界
+1. `Aevatar.Workflow.Infrastructure` 仅装配 Workflow 抽象能力。
+2. 具体 Provider 注册放在 `Host` 或 `workflow/extensions/*` 组合包。
+3. `AddWorkflowCapability(...)` 不再直接调用 `AddElasticsearch.../AddNeo4j.../AddInMemory...`。
+
+## 10. 重构工作包（WBS）
+
+### WP-1：Workflow 与 Provider 彻底解耦（优先级 P0，已完成）
+- 目标：完成 R-WF-01。
+- 改动范围：
+  1. 删除 `src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj` 对三个 Provider 项目的引用。
+  2. 重构 `src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`，移除具体 Provider using 与注册调用。
+  3. 在 Host/Extensions 层新增组合入口（示例：`AddWorkflowProjectionProviders(...)`），统一承载 Provider 选择与配置。
+  4. 调整 `src/workflow/Aevatar.Workflow.Host.Api/Program.cs` 与 `src/Aevatar.Mainnet.Host.Api/Program.cs` 的组合顺序。
+- 产物：
+  1. Workflow.Infrastructure 纯抽象消费。
+  2. Host 级 Provider 组合扩展。
+  3. 覆盖注册路径的单测/集测。
+- DoD：
+  1. `rg -n "Aevatar\.CQRS\.Projection\.Providers\." src/workflow/Aevatar.Workflow.Infrastructure` 无命中。
+  2. 所有 Workflow Host 能正常启动并通过投影功能测试。
+
+### WP-2：启动期全量能力预校验（优先级 P0，已完成）
+- 目标：完成 R-RM-03。
+- 设计：
+  1. 新增 startup 校验服务（`IHostedService` 或 startup task）。
+  2. 启动阶段遍历 read-model 绑定，调用 ProviderSelector + CapabilityValidator dry-run。
+  3. 任何绑定失败直接终止启动（fail-fast）。
+- 改动范围：
+  - `src/Aevatar.CQRS.Projection.Runtime/*`
+  - `src/workflow/Aevatar.Workflow.Projection/*`
+  - `src/workflow/Aevatar.Workflow.Host.Api/*`（注册校验服务）
+- 产物：
+  1. 启动期校验实现。
+  2. 启动失败测试：provider 未注册、能力不匹配、binding 非法。
+
+### WP-3：Replay 同态合同测试矩阵（优先级 P1）
+- 目标：完成 R-ES-03。
+- 设计：
+  1. 抽象统一测试模板：`Command -> Events -> Replay -> StateEquals`。
+  2. 覆盖关键 actor 类别：
+     - `src/workflow/Aevatar.Workflow.Core/WorkflowGAgent.cs`
+     - `src/Aevatar.AI.Core/RoleGAgent.cs`
+     - `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs`
+  3. 新增守卫：关键目录新增 `GAgentBase<TState>` 子类必须在合同测试中被引用。
+- 产物：
+  1. 合同测试基类与样例。
+  2. 关键 actor 覆盖报告。
+
+### WP-4：治理门禁补齐（优先级 P1，已完成）
+- 目标：完成 R-GOV-01 剩余项。
+- 改动范围：
+  - `tools/ci/architecture_guards.sh`
+- 新增规则：
+  1. 禁止 `src/workflow/Aevatar.Workflow.Infrastructure/*.csproj` 引用 `Aevatar.CQRS.Projection.Providers.*.csproj`。
+  2. 禁止 Workflow.Infrastructure 源码 `using Aevatar.CQRS.Projection.Providers.*`。
+- 产物：
+  1. 守卫脚本更新。
+  2. 对应守卫测试或 CI 验证记录。
+
+### WP-5：生产化增强（优先级 P2）
+- 目标：压实容量与稳定性。
+- 内容：
+  1. 引入生产级 `IEventStore` 后端（当前本地实现为 InMemory/File，生产需独立持久化方案）。
+  2. 建立快照与压缩参数压测基线：吞吐、恢复时延、磁盘增长曲线。
+  3. 将 provider e2e smoke 接入常态 CI（至少 nightly）。
+- 说明：此工作包不影响 P0/P1 的架构闭环，可并行推进。
+
+## 11. 里程碑与依赖
+
+| 里程碑 | 日期（计划） | 依赖 | 交付 |
+|---|---|---|---|
+| M1 | 2026-02-25 | 无 | WP-1 完成，Workflow 解耦完成 |
+| M2 | 2026-02-27 | M1 | WP-2 完成，启动期 fail-fast 生效 |
+| M3 | 2026-03-01 | M1 | WP-3 完成，合同测试矩阵落地 |
+| M4 | 2026-03-02 | M1 | WP-4 完成，门禁补齐 |
+| M5 | 2026-03-06 | M2+M3+M4 | WP-5 初版（压测+生产后端方案） |
+
+## 12. 验证矩阵（需求 -> 命令 -> 通过标准）
+
+| 需求 | 验证命令 | 通过标准 |
+|---|---|---|
+| R-ES-01/02/04/05/06 | `bash tools/ci/architecture_guards.sh` | 脚本通过，无 ES 反射注入/State 直写/违规路径 |
+| R-RM-01/02/04 | `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo` | Provider 选择与能力测试通过 |
+| R-WF-02 | `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo` | Workflow 投影与 AGUI 路径测试通过 |
+| R-RM-03 | `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --filter "*ReadModel*" --nologo` | 启动期能力校验失败/成功场景通过 |
+| R-ES-03 | `dotnet test test/Aevatar.Foundation.Core.Tests/Aevatar.Foundation.Core.Tests.csproj --nologo` + 合同测试项目 | 关键 actor replay 同态全部通过 |
+| 全量回归 | `dotnet build aevatar.slnx --nologo` + `dotnet test aevatar.slnx --nologo` | 构建+测试全绿 |
+
+## 13. 完成定义（Final DoD）
+1. 有状态 Actor 恢复事实源仅来自 EventStore replay。
+2. 命令路径上不存在自动派生事件机制。
+3. Workflow.Infrastructure 与 Provider 实现完全解耦。
+4. ReadModel 能力协商在启动期可全量 fail-fast。
+5. CQRS 与 AGUI 共用同一投影输入链路。
+6. CI 守卫覆盖上述约束并在主干持续执行。
+
+## 14. 风险与应对
+1. 风险：Workflow 解耦后 Host 组合复杂度增加。
+   - 应对：提供单一 Host 扩展入口，不允许业务重复拼装 Provider。
+2. 风险：启动期全量校验增加启动耗时。
+   - 应对：采用 dry-run，不触发真实写入；提供严格模式与开发模式开关。
+3. 风险：合同测试扩大导致 CI 时间增长。
+   - 应对：PR 快速集 + nightly 全量集分层执行。
+4. 风险：生产 EventStore 语义偏离现有实现。
+   - 应对：统一 `IEventStore` 合同测试套件，后端接入前强制通过。
+
+## 15. 执行清单（可勾选）
+- [x] 完成 WP-1：Workflow 解耦与 Host 组合下沉
+- [x] 完成 WP-2：启动期全量能力校验
+- [ ] 完成 WP-3：Replay 合同测试矩阵
+- [x] 完成 WP-4：Workflow->Providers 门禁补齐
+- [ ] 完成 WP-5：生产化后端与压测闭环
+
+## 16. 当前执行快照（2026-02-23）
+- 已完成：R-ES-01、R-ES-02、R-ES-04、R-ES-05、R-ES-06、R-RM-01、R-RM-02、R-RM-03、R-RM-04、R-WF-01、R-WF-02、R-GOV-01
+- 部分完成：R-ES-03
+- 当前主阻塞：Replay 合同测试矩阵、生产 EventStore 后端与压测闭环
+
+## 17. 变更纪律
+1. 删除优先，不做兼容壳。
+2. 代码先改，文档同步更新，不允许文档失真。
+3. 新增能力必须挂在主链路上，不允许旁路“第二系统”。
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj b/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj
index 60ffa6891..8c3b9131a 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj
@@ -13,9 +13,6 @@
     <ProjectReference Include="..\Aevatar.Workflow.Projection\Aevatar.Workflow.Projection.csproj" />
     <ProjectReference Include="..\Aevatar.Workflow.Presentation.AGUIAdapter\Aevatar.Workflow.Presentation.AGUIAdapter.csproj" />
     <ProjectReference Include="..\..\Aevatar.Configuration\Aevatar.Configuration.csproj" />
-    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
-    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Providers.InMemory\Aevatar.CQRS.Projection.Providers.InMemory.csproj" />
-    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Providers.Neo4j\Aevatar.CQRS.Projection.Providers.Neo4j.csproj" />
     <ProjectReference Include="..\..\Aevatar.Hosting\Aevatar.Hosting.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
index 88316bcfe..9ddd97d23 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
@@ -1,17 +1,11 @@
 using Aevatar.Configuration;
 using Aevatar.CQRS.Projection.Abstractions;
-using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
-using Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
-using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
-using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
-using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
 using Aevatar.Workflow.Application.DependencyInjection;
 using Aevatar.Workflow.Core;
 using Aevatar.Workflow.Presentation.AGUIAdapter;
 using Aevatar.Workflow.Presentation.AGUIAdapter.DependencyInjection;
 using Aevatar.Workflow.Projection.Configuration;
 using Aevatar.Workflow.Projection.DependencyInjection;
-using Aevatar.Workflow.Projection.ReadModels;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 
@@ -29,31 +23,6 @@ public static IServiceCollection AddWorkflowCapability(
             configuration.GetSection("WorkflowExecutionProjection").Bind(options);
             ApplyGlobalReadModelOptions(configuration, options);
         });
-        services.AddInMemoryReadModelStoreRegistration<WorkflowExecutionReport, string>(
-            keySelector: report => report.RootActorId,
-            keyFormatter: key => key,
-            listSortSelector: report => report.StartedAt,
-            listTakeMax: 200);
-        services.AddElasticsearchReadModelStoreRegistration<WorkflowExecutionReport, string>(
-            optionsFactory: _ =>
-            {
-                var providerOptions = new ElasticsearchProjectionReadModelStoreOptions();
-                configuration.GetSection("Projection:ReadModel:Providers:Elasticsearch").Bind(providerOptions);
-                return providerOptions;
-            },
-            indexScope: "workflow-execution-reports",
-            keySelector: report => report.RootActorId,
-            keyFormatter: key => key);
-        services.AddNeo4jReadModelStoreRegistration<WorkflowExecutionReport, string>(
-            optionsFactory: _ =>
-            {
-                var providerOptions = new Neo4jProjectionReadModelStoreOptions();
-                configuration.GetSection("Projection:ReadModel:Providers:Neo4j").Bind(providerOptions);
-                return providerOptions;
-            },
-            scope: "workflow-execution-reports",
-            keySelector: report => report.RootActorId,
-            keyFormatter: key => key);
         services.AddWorkflowExecutionAGUIAdapter();
         services.AddWorkflowExecutionProjectionProjector<WorkflowExecutionAGUIEventProjector>();
         services.AddWorkflowApplication();
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/README.md b/src/workflow/Aevatar.Workflow.Infrastructure/README.md
index eeb503fa9..6b4ab24cf 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/README.md
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/README.md
@@ -25,10 +25,12 @@
   - 注册 workflow 文件源与启动加载 HostedService。
 - `AddWorkflowCapability(IServiceCollection, IConfiguration)`
   - 能力一键组合（Application + Projection + AGUIAdapter + Infrastructure + workflow 文件源）。
+  - 不负责具体 ReadModel Provider 注册（Provider 组合下沉到 Host/Extensions 层）。
 - `AddWorkflowCapability(WebApplicationBuilder)`
   - Host 侧一行接入 Workflow 能力（服务注册 + 能力端点声明）。
 - `Aevatar.Workflow.Extensions.Hosting.AddWorkflowCapabilityWithAIDefaults(WebApplicationBuilder)`
   - 在 Host 入口统一装配 Workflow capability + AI features + AI projection extension（推荐用于生产组合入口）。
+  - 默认同时注册 Workflow 读模型 Provider（InMemory/Elasticsearch/Neo4j）。
 - `MapWorkflowCapabilityEndpoints(...)`
   - 将 Workflow 能力 API 端点挂载到 Host（默认由 `UseAevatarDefaultHost()` 自动调用能力映射链路）。
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj b/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
index 2136b2526..2042a1f12 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
+++ b/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
@@ -19,5 +19,6 @@
     <PackageReference Include="Google.Protobuf" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" />
   </ItemGroup>
 </Project>
diff --git a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
index fa5d4ccc8..2059b4aff 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
@@ -52,6 +52,11 @@ public bool EnableRunQueryEndpoints
     /// </summary>
     public bool FailOnUnsupportedCapabilities { get; set; } = true;
 
+    /// <summary>
+    /// Whether to pre-validate read-model provider selection and capabilities during host startup.
+    /// </summary>
+    public bool ValidateReadModelProviderOnStartup { get; set; } = true;
+
     /// <summary>
     /// Optional read-model binding requirements (ReadModelName -> IndexKind).
     /// </summary>
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index 4c1dcb375..319c62118 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -10,6 +10,7 @@
 using Aevatar.CQRS.Projection.Core.Streaming;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
+using Microsoft.Extensions.Hosting;
 using System.Reflection;
 
 namespace Aevatar.Workflow.Projection.DependencyInjection;
@@ -58,6 +59,7 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.TryAddSingleton<IWorkflowProjectionQueryReader, WorkflowProjectionQueryReader>();
         services.TryAddSingleton<IProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>, ProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>>();
         services.TryAddSingleton<IWorkflowExecutionProjectionPort, WorkflowExecutionProjectionService>();
+        services.TryAddEnumerable(ServiceDescriptor.Singleton<IHostedService, WorkflowReadModelStartupValidationHostedService>());
         return services;
     }
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
new file mode 100644
index 000000000..72ad1e05f
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -0,0 +1,82 @@
+using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.Workflow.Projection.Configuration;
+using Aevatar.Workflow.Projection.ReadModels;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.Workflow.Projection.Orchestration;
+
+internal sealed class WorkflowReadModelStartupValidationHostedService : IHostedService
+{
+    private readonly IServiceProvider _serviceProvider;
+    private readonly WorkflowExecutionProjectionOptions _options;
+    private readonly IProjectionReadModelBindingResolver _bindingResolver;
+    private readonly IProjectionReadModelProviderRegistry _providerRegistry;
+    private readonly IProjectionReadModelProviderSelector _providerSelector;
+    private readonly ILogger<WorkflowReadModelStartupValidationHostedService> _logger;
+
+    public WorkflowReadModelStartupValidationHostedService(
+        IServiceProvider serviceProvider,
+        WorkflowExecutionProjectionOptions options,
+        IProjectionReadModelBindingResolver bindingResolver,
+        IProjectionReadModelProviderRegistry providerRegistry,
+        IProjectionReadModelProviderSelector providerSelector,
+        ILogger<WorkflowReadModelStartupValidationHostedService>? logger = null)
+    {
+        _serviceProvider = serviceProvider;
+        _options = options;
+        _bindingResolver = bindingResolver;
+        _providerRegistry = providerRegistry;
+        _providerSelector = providerSelector;
+        _logger = logger ?? NullLogger<WorkflowReadModelStartupValidationHostedService>.Instance;
+    }
+
+    public Task StartAsync(CancellationToken cancellationToken)
+    {
+        cancellationToken.ThrowIfCancellationRequested();
+        if (!_options.Enabled || !_options.ValidateReadModelProviderOnStartup)
+            return Task.CompletedTask;
+
+        EnsureReadModelModeSupported();
+
+        var requirements = _bindingResolver.Resolve(_options.ReadModelBindings, typeof(WorkflowExecutionReport));
+        var selectionOptions = new ProjectionReadModelStoreSelectionOptions
+        {
+            RequestedProviderName = NormalizeProviderName(_options.ReadModelProvider),
+            FailOnUnsupportedCapabilities = _options.FailOnUnsupportedCapabilities,
+        };
+
+        var registrations = _providerRegistry.GetRegistrations<WorkflowExecutionReport, string>(_serviceProvider);
+        var selected = _providerSelector.Select(registrations, selectionOptions, requirements);
+        _logger.LogInformation(
+            "Workflow read-model provider startup validation passed. readModelType={ReadModelType} provider={Provider}",
+            typeof(WorkflowExecutionReport).FullName,
+            selected.ProviderName);
+        return Task.CompletedTask;
+    }
+
+    public Task StopAsync(CancellationToken cancellationToken)
+    {
+        cancellationToken.ThrowIfCancellationRequested();
+        return Task.CompletedTask;
+    }
+
+    private void EnsureReadModelModeSupported()
+    {
+        if (_options.ReadModelMode != ProjectionReadModelMode.StateOnly)
+            return;
+
+        throw new InvalidOperationException(
+            "Workflow projection does not support Projection:ReadModel:Mode=StateOnly. " +
+            "Use CustomReadModel or DefaultReadModel.");
+    }
+
+    private static string NormalizeProviderName(string providerName)
+    {
+        if (string.IsNullOrWhiteSpace(providerName))
+            return ProjectionReadModelProviderNames.InMemory;
+
+        return providerName.Trim();
+    }
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index faab7813c..dd81f8321 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -18,7 +18,7 @@
 - 实时输出契约：`WorkflowRunEvent`、`IWorkflowRunEventSink`、`WorkflowRunEventChannel`（定义于 `Aevatar.Workflow.Application.Abstractions`）
 - 领域投影实现：reducers、projectors、read model（不包含 Provider Store 实现）
 - 领域 DI 组合：`AddWorkflowExecutionProjectionCQRS(...)`
-- Provider 能力校验：基于 `ProjectionReadModelCapabilityValidator` 在装配期校验 `ReadModelBindings` 与 Provider 能力匹配
+- Provider 能力校验：启动期由 `WorkflowReadModelStartupValidationHostedService` 预校验，运行时选择阶段继续按 `ProjectionReadModelCapabilityValidator` 校验
 
 本项目依赖：
 
@@ -76,7 +76,7 @@ FAQ：
   - 在 DI 中注册
 - 扩展 ReadModel Provider（推荐）：
   - 实现 `IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>`
-  - 在 Infrastructure 侧注册（例如 `AddInMemoryReadModelStoreRegistration` / `AddElasticsearchReadModelStoreRegistration`）
+  - 在 Host/Extensions 侧注册（例如 `Aevatar.Workflow.Extensions.Hosting.AddWorkflowProjectionReadModelProviders(...)`）
   - 通过 `WorkflowExecutionProjection:ReadModelProvider` 或 `Projection:ReadModel:Provider` 选择 Provider
 - 直接替换 Store（仅测试/临时场景）：
   - 调用 `AddWorkflowExecutionProjectionReadModelStore<TStore>()` 直接覆盖 `IProjectionReadModelStore<WorkflowExecutionReport, string>`
@@ -86,6 +86,7 @@ FAQ：
 
 - `WorkflowExecutionProjection:ReadModelProvider`：`InMemory`（默认）/`Elasticsearch`
 - `WorkflowExecutionProjection:FailOnUnsupportedCapabilities`：能力不匹配时是否 fail-fast（默认 `true`）
+- `WorkflowExecutionProjection:ValidateReadModelProviderOnStartup`：是否在 Host 启动阶段预校验 Provider 选择与能力（默认 `true`）
 - `WorkflowExecutionProjection:ReadModelBindings`：ReadModel -> IndexKind 约束（如 `WorkflowExecutionReport: Document`）
 - 推荐统一配置入口：`Projection:ReadModel:*`（由 Infrastructure 映射到 Workflow 投影选项）
 - `Projection:ReadModel:Provider`：全局默认 Provider（当前由 `WorkflowCapabilityServiceCollectionExtensions` 覆盖到模块选项）
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj
index 44401e408..ba1f87406 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj
@@ -7,8 +7,12 @@
     <RootNamespace>Aevatar.Workflow.Extensions.Hosting</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
+    <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
+    <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Providers.InMemory\Aevatar.CQRS.Projection.Providers.InMemory.csproj" />
+    <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Providers.Neo4j\Aevatar.CQRS.Projection.Providers.Neo4j.csproj" />
     <ProjectReference Include="..\..\..\Aevatar.Bootstrap.Extensions.AI\Aevatar.Bootstrap.Extensions.AI.csproj" />
     <ProjectReference Include="..\..\Aevatar.Workflow.Infrastructure\Aevatar.Workflow.Infrastructure.csproj" />
+    <ProjectReference Include="..\..\Aevatar.Workflow.Projection\Aevatar.Workflow.Projection.csproj" />
     <ProjectReference Include="..\Aevatar.Workflow.Extensions.AIProjection\Aevatar.Workflow.Extensions.AIProjection.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowCapabilityHostBuilderExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowCapabilityHostBuilderExtensions.cs
index 2e20af8bd..b6e3ee857 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowCapabilityHostBuilderExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowCapabilityHostBuilderExtensions.cs
@@ -20,6 +20,7 @@ public static WebApplicationBuilder AddWorkflowCapabilityWithAIDefaults(
             options.EnableSkills = true;
             configureAIFeatures?.Invoke(options);
         });
+        builder.Services.AddWorkflowProjectionReadModelProviders(builder.Configuration);
         builder.AddWorkflowCapability();
         builder.Services.AddWorkflowAIProjectionExtensions();
 
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
new file mode 100644
index 000000000..b9c78feba
--- /dev/null
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -0,0 +1,58 @@
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
+using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
+using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
+using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
+using Aevatar.Workflow.Projection.ReadModels;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.Workflow.Extensions.Hosting;
+
+public static class WorkflowProjectionProviderServiceCollectionExtensions
+{
+    public static IServiceCollection AddWorkflowProjectionReadModelProviders(
+        this IServiceCollection services,
+        IConfiguration configuration)
+    {
+        ArgumentNullException.ThrowIfNull(services);
+        ArgumentNullException.ThrowIfNull(configuration);
+
+        if (services.Any(x => x.ServiceType == typeof(WorkflowProjectionProviderRegistrationsMarker)))
+            return services;
+
+        services.AddSingleton<WorkflowProjectionProviderRegistrationsMarker>();
+
+        services.AddInMemoryReadModelStoreRegistration<WorkflowExecutionReport, string>(
+            keySelector: report => report.RootActorId,
+            keyFormatter: key => key,
+            listSortSelector: report => report.StartedAt,
+            listTakeMax: 200);
+
+        services.AddElasticsearchReadModelStoreRegistration<WorkflowExecutionReport, string>(
+            optionsFactory: _ =>
+            {
+                var providerOptions = new ElasticsearchProjectionReadModelStoreOptions();
+                configuration.GetSection("Projection:ReadModel:Providers:Elasticsearch").Bind(providerOptions);
+                return providerOptions;
+            },
+            indexScope: "workflow-execution-reports",
+            keySelector: report => report.RootActorId,
+            keyFormatter: key => key);
+
+        services.AddNeo4jReadModelStoreRegistration<WorkflowExecutionReport, string>(
+            optionsFactory: _ =>
+            {
+                var providerOptions = new Neo4jProjectionReadModelStoreOptions();
+                configuration.GetSection("Projection:ReadModel:Providers:Neo4j").Bind(providerOptions);
+                return providerOptions;
+            },
+            scope: "workflow-execution-reports",
+            keySelector: report => report.RootActorId,
+            keyFormatter: key => key);
+
+        return services;
+    }
+
+    private sealed class WorkflowProjectionProviderRegistrationsMarker;
+}
diff --git a/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs b/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs
index 7f3cf477a..887b04588 100644
--- a/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs
+++ b/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs
@@ -4,6 +4,8 @@
 using Aevatar.AI.Core;
 using Aevatar.AI.Core.Hooks;
 using Aevatar.AI.Abstractions.Middleware;
+using Aevatar.Foundation.Abstractions;
+using Aevatar.Foundation.Abstractions.Persistence;
 using FluentAssertions;
 using Microsoft.Extensions.DependencyInjection;
 
@@ -17,6 +19,7 @@ public async Task ConfigureAsync_WhenSourceToolsShrink_ShouldRemoveStaleTools()
         var source = new MutableToolSource("tool-a", "tool-b");
         var services = new ServiceCollection();
         services.AddSingleton<IAgentToolSource>(source);
+        services.AddSingleton<IEventStore, TestEventStore>();
         using var provider = services.BuildServiceProvider();
         var agent = new TestAIGAgent(provider.GetServices<IAgentToolSource>())
         {
@@ -38,6 +41,7 @@ public async Task ConfigureAsync_WhenSourceToolsChanged_ShouldKeepManualTools()
         var source = new MutableToolSource("source-old");
         var services = new ServiceCollection();
         services.AddSingleton<IAgentToolSource>(source);
+        services.AddSingleton<IEventStore, TestEventStore>();
         using var provider = services.BuildServiceProvider();
         var agent = new TestAIGAgent(provider.GetServices<IAgentToolSource>())
         {
@@ -145,4 +149,64 @@ public async IAsyncEnumerable<LLMStreamChunk> ChatStreamAsync(
             yield break;
         }
     }
+
+    private sealed class TestEventStore : IEventStore
+    {
+        private readonly Dictionary<string, List<StateEvent>> _events = new(StringComparer.Ordinal);
+
+        public Task<long> AppendAsync(
+            string agentId,
+            IEnumerable<StateEvent> events,
+            long expectedVersion,
+            CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            if (!_events.TryGetValue(agentId, out var stream))
+            {
+                stream = [];
+                _events[agentId] = stream;
+            }
+
+            var currentVersion = stream.Count == 0 ? 0 : stream[^1].Version;
+            if (currentVersion != expectedVersion)
+                throw new InvalidOperationException($"Optimistic concurrency conflict: expected {expectedVersion}, actual {currentVersion}");
+
+            stream.AddRange(events.Select(x => x.Clone()));
+            return Task.FromResult(stream.Count == 0 ? 0 : stream[^1].Version);
+        }
+
+        public Task<IReadOnlyList<StateEvent>> GetEventsAsync(
+            string agentId,
+            long? fromVersion = null,
+            CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            if (!_events.TryGetValue(agentId, out var stream))
+                return Task.FromResult<IReadOnlyList<StateEvent>>([]);
+
+            IReadOnlyList<StateEvent> result = fromVersion.HasValue
+                ? stream.Where(x => x.Version > fromVersion.Value).Select(x => x.Clone()).ToList()
+                : stream.Select(x => x.Clone()).ToList();
+            return Task.FromResult(result);
+        }
+
+        public Task<long> GetVersionAsync(string agentId, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            if (!_events.TryGetValue(agentId, out var stream) || stream.Count == 0)
+                return Task.FromResult(0L);
+            return Task.FromResult(stream[^1].Version);
+        }
+
+        public Task<long> DeleteEventsUpToAsync(string agentId, long toVersion, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            if (toVersion <= 0 || !_events.TryGetValue(agentId, out var stream))
+                return Task.FromResult(0L);
+
+            var before = stream.Count;
+            stream.RemoveAll(x => x.Version <= toVersion);
+            return Task.FromResult((long)(before - stream.Count));
+        }
+    }
 }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 5a8e11dd4..9ad85d5ca 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -18,11 +18,57 @@
 using Google.Protobuf;
 using Google.Protobuf.WellKnownTypes;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace Aevatar.Workflow.Host.Api.Tests;
 
 public class WorkflowExecutionProjectionRegistrationTests
 {
+    [Fact]
+    public async Task AddWorkflowExecutionProjectionCQRS_WhenStartupValidationEnabledAndProviderMissing_ShouldFailFast()
+    {
+        var services = new ServiceCollection();
+        services.AddWorkflowExecutionProjectionCQRS();
+
+        await using var provider = services.BuildServiceProvider();
+        Func<Task> act = () => StartHostedServicesAsync(provider);
+
+        await act.Should().ThrowAsync<ProjectionProviderSelectionException>()
+            .WithMessage("*No provider registrations were found*");
+    }
+
+    [Fact]
+    public async Task AddWorkflowExecutionProjectionCQRS_WhenStartupValidationFindsUnsupportedCapabilities_ShouldFailFast()
+    {
+        var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
+        services.AddWorkflowExecutionProjectionCQRS(options =>
+        {
+            options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory;
+            options.ReadModelBindings[nameof(WorkflowExecutionReport)] = ProjectionReadModelIndexKind.Document.ToString();
+            options.FailOnUnsupportedCapabilities = true;
+        });
+
+        await using var provider = services.BuildServiceProvider();
+        Func<Task> act = () => StartHostedServicesAsync(provider);
+
+        await act.Should().ThrowAsync<ProjectionReadModelCapabilityValidationException>()
+            .Where(ex => ex.ReadModelType == typeof(WorkflowExecutionReport));
+    }
+
+    [Fact]
+    public async Task AddWorkflowExecutionProjectionCQRS_WhenStartupValidationConfiguredCorrectly_ShouldPass()
+    {
+        var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
+        services.AddWorkflowExecutionProjectionCQRS();
+
+        await using var provider = services.BuildServiceProvider();
+        Func<Task> act = () => StartHostedServicesAsync(provider);
+
+        await act.Should().NotThrowAsync();
+    }
+
     [Fact]
     public void AddWorkflowExecutionProjectionCQRS_ShouldUseInMemoryProviderByDefault()
     {
@@ -398,4 +444,11 @@ protected override bool Reduce(
             return true;
         }
     }
+
+    private static async Task StartHostedServicesAsync(ServiceProvider provider)
+    {
+        var hostedServices = provider.GetServices<IHostedService>();
+        foreach (var hostedService in hostedServices)
+            await hostedService.StartAsync(CancellationToken.None);
+    }
 }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index 2ddfd7f7f..4a6a6bfa3 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -11,6 +11,7 @@
 using Aevatar.Workflow.Projection.ReadModels;
 using FluentAssertions;
 using Microsoft.AspNetCore.Builder;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 
@@ -53,4 +54,35 @@ public async Task AddWorkflowCapabilityWithAIDefaults_ShouldRegisterWorkflowAndA
         toolSources.Should().NotContain(x => x is MCPAgentToolSource);
         toolSources.Should().NotContain(x => x is SkillsAgentToolSource);
     }
+
+    [Fact]
+    public void AddWorkflowCapabilityWithAIDefaults_ShouldRegisterReadModelProvidersInHostLayer()
+    {
+        var builder = WebApplication.CreateBuilder(new WebApplicationOptions
+        {
+            EnvironmentName = Environments.Development,
+        });
+
+        builder.AddWorkflowCapabilityWithAIDefaults();
+
+        var providerRegistrations = builder.Services
+            .Where(x => x.ServiceType == typeof(IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>))
+            .ToList();
+        providerRegistrations.Should().HaveCount(3);
+    }
+
+    [Fact]
+    public void AddWorkflowProjectionReadModelProviders_MultipleCalls_ShouldBeIdempotent()
+    {
+        var services = new ServiceCollection();
+        var configuration = new ConfigurationBuilder().Build();
+
+        services.AddWorkflowProjectionReadModelProviders(configuration);
+        services.AddWorkflowProjectionReadModelProviders(configuration);
+
+        var providerRegistrations = services
+            .Where(x => x.ServiceType == typeof(IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>))
+            .ToList();
+        providerRegistrations.Should().HaveCount(3);
+    }
 }
diff --git a/tools/ci/architecture_guards.sh b/tools/ci/architecture_guards.sh
index 01bc1a2eb..bcbf67ba4 100755
--- a/tools/ci/architecture_guards.sh
+++ b/tools/ci/architecture_guards.sh
@@ -388,6 +388,13 @@ if ! rg -n "AddWorkflowCapabilityWithAIDefaults\(" src/workflow/Aevatar.Workflow
   exit 1
 fi
 
+if ! rg -n "AddWorkflowProjectionReadModelProviders\(" \
+  src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowCapabilityHostBuilderExtensions.cs >/dev/null
+then
+  echo "Workflow hosting extension must register read-model providers via AddWorkflowProjectionReadModelProviders()."
+  exit 1
+fi
+
 if [ -f "src/workflow/extensions/Aevatar.Workflow.Extensions.Maker/MakerModuleFactory.cs" ]; then
   echo "Maker extension must use unified module pack model; MakerModuleFactory is forbidden."
   exit 1
@@ -427,6 +434,21 @@ then
   exit 1
 fi
 
+if rg -n "Aevatar\.CQRS\.Projection\.Providers\..*\.csproj" \
+  src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj
+then
+  echo "Workflow.Infrastructure must not reference projection provider implementation projects. Register providers in host/extensions layer."
+  exit 1
+fi
+
+if rg -n "using\s+Aevatar\.CQRS\.Projection\.Providers\." \
+  src/workflow/Aevatar.Workflow.Infrastructure \
+  -g '*.cs'
+then
+  echo "Workflow.Infrastructure source must not reference projection provider namespaces. Register providers in host/extensions layer."
+  exit 1
+fi
+
 if rg -n "TryGetContext\(" src; then
   echo "Projection context reverse lookup is forbidden. Use explicit projection lease/session handles."
   exit 1

From 413d369d7d58ad802f1ffb1ff4c290d5611b4de4 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Tue, 24 Feb 2026 01:06:41 +0800
Subject: [PATCH 10/46] Enhance CI Workflow with Path Filtering and New Job
 Structure

- Introduced path filtering in the CI workflow to conditionally trigger jobs based on changes in specific directories or files, improving efficiency.
- Added new jobs for `split-test-guards`, `projection-provider-e2e`, and `kafka-transport-integration`, allowing for targeted testing and integration based on detected changes.
- Implemented a `coverage-quality` job to enforce coverage thresholds and ensure code quality during CI runs.
- Updated the CI configuration to include a comprehensive README, detailing the purpose and functionality of each script and job within the CI process, enhancing developer understanding and usability.
---
 .github/workflows/ci.yml | 192 ++++++++++++++++++++++++++++++++++-----
 tools/ci/README.md       |  39 ++++++++
 2 files changed, 210 insertions(+), 21 deletions(-)
 create mode 100644 tools/ci/README.md

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f56f53b64..902a28954 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,10 +11,56 @@ on:
     - cron: "0 3 * * *"
   workflow_dispatch:
 
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
-  fast-build-test:
+  changes:
     if: github.event_name != 'schedule'
     runs-on: ubuntu-latest
+    outputs:
+      core_code: ${{ steps.filter.outputs.core_code }}
+      projection_provider: ${{ steps.filter.outputs.projection_provider }}
+      kafka_runtime: ${{ steps.filter.outputs.kafka_runtime }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Detect Changed Paths
+        id: filter
+        uses: dorny/paths-filter@v3
+        with:
+          filters: |
+            core_code:
+              - 'src/**'
+              - 'test/**'
+              - 'aevatar.slnx'
+              - 'aevatar.*.slnf'
+              - 'Directory.Build.props'
+              - 'Directory.Packages.props'
+              - 'global.json'
+              - 'tools/ci/**'
+              - '.github/workflows/ci.yml'
+            projection_provider:
+              - 'docker-compose.projection-providers.yml'
+              - 'src/Aevatar.CQRS.Projection.*/**'
+              - 'src/Aevatar.CQRS.Projection.Core/**'
+              - 'test/Aevatar.CQRS.Projection.Core.Tests/**'
+              - 'tools/ci/projection_provider_e2e_smoke.sh'
+              - '.github/workflows/ci.yml'
+            kafka_runtime:
+              - 'docker-compose.yml'
+              - 'src/Aevatar.Foundation.Runtime*/**'
+              - 'test/Aevatar.Foundation.Runtime.Hosting.Tests/**'
+              - '.github/workflows/ci.yml'
+
+  fast-gates:
+    if: github.event_name != 'schedule' && (github.event_name == 'workflow_dispatch' || needs.changes.outputs.core_code == 'true')
+    needs: changes
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
     steps:
       - uses: actions/checkout@v4
 
@@ -22,23 +68,14 @@ jobs:
         uses: actions/setup-dotnet@v4
         with:
           global-json-file: global.json
+          cache: true
 
-      - name: Install ripgrep
+      - name: Ensure ripgrep
         run: |
-          sudo apt-get update
-          sudo apt-get install -y ripgrep
-
-      - name: Restore
-        run: dotnet restore aevatar.slnx --nologo
-
-      - name: Build
-        run: dotnet build aevatar.slnx --nologo --no-restore --tl:off -m:1 -p:UseSharedCompilation=false -p:NuGetAudit=false
-
-      - name: Coverage Quality Guard
-        env:
-          COVERAGE_LINE_THRESHOLD: "85"
-          COVERAGE_BRANCH_THRESHOLD: "72"
-        run: bash tools/ci/coverage_quality_guard.sh
+          if ! command -v rg >/dev/null 2>&1; then
+            sudo apt-get update
+            sudo apt-get install -y ripgrep
+          fi
 
       - name: Architecture Guards (full-scan + projection route mapping)
         env:
@@ -51,11 +88,96 @@ jobs:
       - name: Test Stability Guards
         run: bash tools/ci/test_stability_guards.sh
 
-      - name: Solution Split Test Guards
-        env:
-          SPLIT_TEST_NO_RESTORE: "1"
-          SPLIT_TEST_NO_BUILD: "1"
-        run: bash tools/ci/solution_split_test_guards.sh
+  split-test-guards:
+    if: github.event_name != 'schedule' && (github.event_name == 'workflow_dispatch' || needs.changes.outputs.core_code == 'true')
+    needs:
+      - changes
+      - fast-gates
+    runs-on: ubuntu-latest
+    timeout-minutes: 35
+    strategy:
+      fail-fast: false
+      matrix:
+        solution_filter:
+          - aevatar.foundation.slnf
+          - aevatar.ai.slnf
+          - aevatar.cqrs.slnf
+          - aevatar.workflow.slnf
+          - aevatar.hosting.slnf
+          - aevatar.distributed.slnf
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          global-json-file: global.json
+          cache: true
+
+      - name: Run split test guard (${{ matrix.solution_filter }})
+        run: |
+          dotnet test "${{ matrix.solution_filter }}" \
+            --nologo \
+            --tl:off \
+            -m:1 \
+            -p:UseSharedCompilation=false \
+            -p:NuGetAudit=false
+
+  projection-provider-e2e:
+    if: |
+      github.event_name != 'schedule' && (
+        github.event_name == 'workflow_dispatch' ||
+        (github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/dev')) ||
+        needs.changes.outputs.projection_provider == 'true'
+      )
+    needs:
+      - changes
+    runs-on: ubuntu-latest
+    timeout-minutes: 25
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          global-json-file: global.json
+          cache: true
+
+      - name: Ensure ripgrep
+        run: |
+          if ! command -v rg >/dev/null 2>&1; then
+            sudo apt-get update
+            sudo apt-get install -y ripgrep
+          fi
+
+      - name: Projection Provider E2E Smoke Test
+        run: bash tools/ci/projection_provider_e2e_smoke.sh
+
+  kafka-transport-integration:
+    if: |
+      github.event_name != 'schedule' && (
+        github.event_name == 'workflow_dispatch' ||
+        (github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/dev')) ||
+        needs.changes.outputs.kafka_runtime == 'true'
+      )
+    needs:
+      - changes
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          global-json-file: global.json
+          cache: true
+
+      - name: Restore
+        run: dotnet restore aevatar.slnx --nologo
+
+      - name: Build
+        run: dotnet build aevatar.slnx --nologo --no-restore --tl:off -m:1 -p:UseSharedCompilation=false -p:NuGetAudit=false
 
       - name: Start Kafka for Distributed Integration Test
         run: docker compose up -d kafka
@@ -94,6 +216,34 @@ jobs:
         if: always()
         run: docker compose down --volumes --remove-orphans
 
+  coverage-quality:
+    if: |
+      github.event_name == 'workflow_dispatch' ||
+      github.event_name == 'schedule' ||
+      (github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/dev'))
+    runs-on: ubuntu-latest
+    timeout-minutes: 35
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          global-json-file: global.json
+          cache: true
+
+      - name: Restore
+        run: dotnet restore aevatar.slnx --nologo
+
+      - name: Build
+        run: dotnet build aevatar.slnx --nologo --no-restore --tl:off -m:1 -p:UseSharedCompilation=false -p:NuGetAudit=false
+
+      - name: Coverage Quality Guard
+        env:
+          COVERAGE_LINE_THRESHOLD: "85"
+          COVERAGE_BRANCH_THRESHOLD: "72"
+        run: bash tools/ci/coverage_quality_guard.sh
+
   distributed-3node-smoke:
     if: |
       github.event_name == 'schedule' ||
diff --git a/tools/ci/README.md b/tools/ci/README.md
new file mode 100644
index 000000000..3c0877efd
--- /dev/null
+++ b/tools/ci/README.md
@@ -0,0 +1,39 @@
+# CI Scripts Map
+
+This directory keeps CI gate scripts and smoke tests.
+
+## Quality Guards
+
+- `tools/ci/coverage_quality_guard.sh`: coverage collection and threshold gate.
+- `tools/ci/architecture_guards.sh`: architecture/static guards (includes projection route mapping guard).
+- `tools/ci/test_stability_guards.sh`: polling/unstable test pattern guard.
+- `tools/ci/solution_split_guards.sh`: split build guard.
+- `tools/ci/solution_split_test_guards.sh`: split test guard.
+- `tools/ci/projection_route_mapping_guard.sh`: projection reducer routing static guard.
+
+## Integration/Smoke Scripts
+
+- `tools/ci/projection_provider_e2e_smoke.sh`
+  - Starts Elasticsearch + Neo4j from `docker-compose.projection-providers.yml`.
+  - Waits for readiness, runs `ProjectionProviderE2EIntegrationTests`, and cleans up containers.
+- `tools/ci/orleans_garnet_persistence_smoke.sh`: Orleans + Garnet persistence smoke.
+
+## Workflow Mapping
+
+- `.github/workflows/ci.yml`
+  - Job `changes`
+    - Uses path filters to detect whether projection-provider or Kafka-runtime integration jobs must run.
+  - Job `fast-gates`
+    - Runs static architecture and test-stability guards.
+  - Job `split-test-guards` (matrix)
+    - Runs `dotnet test` for each split solution filter (`foundation/ai/cqrs/workflow/hosting/distributed`).
+  - Job `projection-provider-e2e`
+    - Runs `tools/ci/projection_provider_e2e_smoke.sh`.
+    - Triggered on projection-provider related changes, `main/dev` pushes, or manual dispatch.
+  - Job `kafka-transport-integration`
+    - Starts Kafka and runs the distributed runtime integration test.
+    - Triggered on runtime integration related changes, `main/dev` pushes, or manual dispatch.
+  - Job `coverage-quality`
+    - Runs restore/build + `tools/ci/coverage_quality_guard.sh`.
+    - Triggered on `main/dev` pushes, nightly schedule, or manual dispatch.
+  - Job `distributed-3node-smoke` -> `tools/ci/distributed_3node_smoke.sh`

From 7a31e4aa2bf0e0c426791568d329a0e8770591bc Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Tue, 24 Feb 2026 01:12:25 +0800
Subject: [PATCH 11/46] Add Prepare Runner Action and Update CI Workflows

- Introduced a new GitHub Action, `Prepare Runner`, to streamline the setup of the .NET SDK, cache NuGet packages, and optionally install ripgrep.
- Updated multiple CI workflow jobs to utilize the new `Prepare Runner` action, enhancing maintainability and reducing redundancy in the setup steps.
- Added a new script, `restore_and_build.sh`, to centralize the restore and build process for the project, improving CI efficiency.
- Updated documentation to reflect the new action and script, providing clarity on their usage within the CI process.
---
 .github/actions/prepare-runner/action.yml | 41 +++++++++++++
 .github/workflows/ci.yml                  | 71 +++++++----------------
 tools/ci/README.md                        |  3 +
 tools/ci/restore_and_build.sh             | 10 ++++
 4 files changed, 74 insertions(+), 51 deletions(-)
 create mode 100644 .github/actions/prepare-runner/action.yml
 create mode 100755 tools/ci/restore_and_build.sh

diff --git a/.github/actions/prepare-runner/action.yml b/.github/actions/prepare-runner/action.yml
new file mode 100644
index 000000000..605151663
--- /dev/null
+++ b/.github/actions/prepare-runner/action.yml
@@ -0,0 +1,41 @@
+name: Prepare Runner
+description: Setup .NET SDK, cache NuGet packages, and optionally install ripgrep.
+inputs:
+  setup-dotnet:
+    description: Whether to install .NET SDK from global.json.
+    required: false
+    default: "true"
+  cache-nuget:
+    description: Whether to cache ~/.nuget/packages.
+    required: false
+    default: "true"
+  install-ripgrep:
+    description: Whether to install ripgrep when missing.
+    required: false
+    default: "false"
+runs:
+  using: composite
+  steps:
+    - name: Setup .NET
+      if: ${{ inputs.setup-dotnet == 'true' }}
+      uses: actions/setup-dotnet@v4
+      with:
+        global-json-file: global.json
+
+    - name: Cache NuGet Packages
+      if: ${{ inputs.cache-nuget == 'true' }}
+      uses: actions/cache@v4
+      with:
+        path: ~/.nuget/packages
+        key: ${{ runner.os }}-nuget-${{ hashFiles('global.json', 'Directory.Build.props', 'Directory.Packages.props', '**/*.csproj', '**/*.props', '**/*.targets') }}
+        restore-keys: |
+          ${{ runner.os }}-nuget-
+
+    - name: Ensure ripgrep
+      if: ${{ inputs.install-ripgrep == 'true' }}
+      shell: bash
+      run: |
+        if ! command -v rg >/dev/null 2>&1; then
+          sudo apt-get update
+          sudo apt-get install -y ripgrep
+        fi
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 902a28954..c54709ec3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -64,18 +64,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+      - name: Prepare Runner
+        uses: ./.github/actions/prepare-runner
         with:
-          global-json-file: global.json
-          cache: true
-
-      - name: Ensure ripgrep
-        run: |
-          if ! command -v rg >/dev/null 2>&1; then
-            sudo apt-get update
-            sudo apt-get install -y ripgrep
-          fi
+          setup-dotnet: "false"
+          cache-nuget: "false"
+          install-ripgrep: "true"
 
       - name: Architecture Guards (full-scan + projection route mapping)
         env:
@@ -108,11 +102,8 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup .NET
-        uses: actions/setup-dotnet@v4
-        with:
-          global-json-file: global.json
-          cache: true
+      - name: Prepare Runner
+        uses: ./.github/actions/prepare-runner
 
       - name: Run split test guard (${{ matrix.solution_filter }})
         run: |
@@ -137,18 +128,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+      - name: Prepare Runner
+        uses: ./.github/actions/prepare-runner
         with:
-          global-json-file: global.json
-          cache: true
-
-      - name: Ensure ripgrep
-        run: |
-          if ! command -v rg >/dev/null 2>&1; then
-            sudo apt-get update
-            sudo apt-get install -y ripgrep
-          fi
+          install-ripgrep: "true"
 
       - name: Projection Provider E2E Smoke Test
         run: bash tools/ci/projection_provider_e2e_smoke.sh
@@ -167,17 +150,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup .NET
-        uses: actions/setup-dotnet@v4
-        with:
-          global-json-file: global.json
-          cache: true
-
-      - name: Restore
-        run: dotnet restore aevatar.slnx --nologo
+      - name: Prepare Runner
+        uses: ./.github/actions/prepare-runner
 
-      - name: Build
-        run: dotnet build aevatar.slnx --nologo --no-restore --tl:off -m:1 -p:UseSharedCompilation=false -p:NuGetAudit=false
+      - name: Restore and Build
+        run: bash tools/ci/restore_and_build.sh
 
       - name: Start Kafka for Distributed Integration Test
         run: docker compose up -d kafka
@@ -226,17 +203,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup .NET
-        uses: actions/setup-dotnet@v4
-        with:
-          global-json-file: global.json
-          cache: true
+      - name: Prepare Runner
+        uses: ./.github/actions/prepare-runner
 
-      - name: Restore
-        run: dotnet restore aevatar.slnx --nologo
-
-      - name: Build
-        run: dotnet build aevatar.slnx --nologo --no-restore --tl:off -m:1 -p:UseSharedCompilation=false -p:NuGetAudit=false
+      - name: Restore and Build
+        run: bash tools/ci/restore_and_build.sh
 
       - name: Coverage Quality Guard
         env:
@@ -254,10 +225,8 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup .NET
-        uses: actions/setup-dotnet@v4
-        with:
-          global-json-file: global.json
+      - name: Prepare Runner
+        uses: ./.github/actions/prepare-runner
 
       - name: 3-Node Distributed Smoke Test
         run: bash tools/ci/distributed_3node_smoke.sh
diff --git a/tools/ci/README.md b/tools/ci/README.md
index 3c0877efd..5a1bb3862 100644
--- a/tools/ci/README.md
+++ b/tools/ci/README.md
@@ -10,6 +10,7 @@ This directory keeps CI gate scripts and smoke tests.
 - `tools/ci/solution_split_guards.sh`: split build guard.
 - `tools/ci/solution_split_test_guards.sh`: split test guard.
 - `tools/ci/projection_route_mapping_guard.sh`: projection reducer routing static guard.
+- `tools/ci/restore_and_build.sh`: shared restore/build entry used by CI jobs.
 
 ## Integration/Smoke Scripts
 
@@ -21,6 +22,8 @@ This directory keeps CI gate scripts and smoke tests.
 ## Workflow Mapping
 
 - `.github/workflows/ci.yml`
+  - Shared runner preparation is centralized in local action:
+    - `.github/actions/prepare-runner/action.yml` (`setup-dotnet` + NuGet cache + optional `ripgrep` install)
   - Job `changes`
     - Uses path filters to detect whether projection-provider or Kafka-runtime integration jobs must run.
   - Job `fast-gates`
diff --git a/tools/ci/restore_and_build.sh b/tools/ci/restore_and_build.sh
new file mode 100755
index 000000000..2810749a4
--- /dev/null
+++ b/tools/ci/restore_and_build.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd -- "${SCRIPT_DIR}/../.." && pwd)"
+cd "${REPO_ROOT}"
+
+dotnet restore aevatar.slnx --nologo
+dotnet build aevatar.slnx --nologo --no-restore --tl:off -m:1 -p:UseSharedCompilation=false -p:NuGetAudit=false

From c433e1609e879da7722135cb797f675987193652 Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Tue, 24 Feb 2026 01:15:29 +0800
Subject: [PATCH 12/46] Enhance RoleGAgent with Event Sourcing and Replay
 Contract Tests

- Updated `RoleGAgent` to utilize event sourcing for role configuration, ensuring state persistence through `HandleConfigureRoleAgent` method.
- Implemented state transition logic in `RoleGAgent` to manage role state changes effectively.
- Added `RoleGAgentReplayContractTests` to verify the correct behavior of role configuration persistence and replay functionality.
- Introduced `InMemoryEventStoreForTests` to facilitate testing of event sourcing mechanisms.
- Updated CI architecture guards to enforce replay contract testing requirements for stateful actors, ensuring comprehensive coverage and adherence to architectural standards.
---
 ...ng-elasticsearch-readmodel-requirements.md | 17 ++--
 src/Aevatar.AI.Core/RoleGAgent.cs             | 26 +++++-
 src/Aevatar.AI.Core/RoleGAgentFactory.cs      | 14 ++-
 .../AIGAgentBaseToolRefreshTests.cs           | 64 +-------------
 .../AIHooksAndRoleFactoryCoverageTests.cs     |  8 +-
 .../RoleGAgentReplayContractTests.cs          | 87 +++++++++++++++++++
 .../TestDoubles/InMemoryEventStoreForTests.cs | 64 ++++++++++++++
 tools/ci/architecture_guards.sh               | 28 ++++++
 8 files changed, 226 insertions(+), 82 deletions(-)
 create mode 100644 test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs
 create mode 100644 test/Aevatar.AI.Tests/TestDoubles/InMemoryEventStoreForTests.cs

diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index 73ce5907b..8b829d80b 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -131,7 +131,7 @@
 |---|---|---|---|---|---|
 | R-ES-01 | 强制事件优先恢复 | 所有 `GAgentBase<TState>` 恢复来自 replay | Done | `GAgentBase.TState.cs` | 无 |
 | R-ES-02 | 显式事件构建 | 无自动派生事件主链路 | Done | `PersistDomainEventsAsync` + 守卫脚本 | 无 |
-| R-ES-03 | 回放同态 | 关键 actor 有统一合同测试 | Partial | `EventSourcingTests.cs` 等 | 缺全类别标准化合同矩阵 |
+| R-ES-03 | 回放同态 | 关键 actor 有统一合同测试 | Done | `WorkflowGAgentCoverageTests` / `ProjectionOwnershipAndSessionHubTests` / `RoleGAgentReplayContractTests` + 守卫 | 无 |
 | R-ES-04 | 静态装配 ES 行为 | Runtime 无反射注入 | Done | `architecture_guards.sh` | 无 |
 | R-ES-05 | 禁止直写 State | 含间接继承链全部受控 | Done | `StateGuard` + awk 扫描门禁 | 无 |
 | R-ES-06 | 快照后异步清理 | 由 runtime 空闲机制执行删除 | Done | `DeferredEventStoreCompactionScheduler` + hook | 无 |
@@ -145,10 +145,7 @@
 
 ## 8. 差距详解
 
-### 8.1 Gap-C（R-ES-03）Replay 合同覆盖不足
-- 现有测试覆盖核心路径，但缺“新增关键 actor 必须关联合同测试”的制度化约束。
-
-### 8.2 Gap-P（生产化）EventStore 生产后端与压测基线未闭环
+### 8.1 Gap-P（生产化）EventStore 生产后端与压测基线未闭环
 - 当前 `IEventStore` 仍以 InMemory/File 为主。
 - 尚未建立容量压测与参数治理基线（快照间隔、保留事件数、压缩频率）。
 
@@ -225,7 +222,7 @@ flowchart LR
   1. 启动期校验实现。
   2. 启动失败测试：provider 未注册、能力不匹配、binding 非法。
 
-### WP-3：Replay 同态合同测试矩阵（优先级 P1）
+### WP-3：Replay 同态合同测试矩阵（优先级 P1，已完成）
 - 目标：完成 R-ES-03。
 - 设计：
   1. 抽象统一测试模板：`Command -> Events -> Replay -> StateEquals`。
@@ -299,14 +296,14 @@ flowchart LR
 ## 15. 执行清单（可勾选）
 - [x] 完成 WP-1：Workflow 解耦与 Host 组合下沉
 - [x] 完成 WP-2：启动期全量能力校验
-- [ ] 完成 WP-3：Replay 合同测试矩阵
+- [x] 完成 WP-3：Replay 合同测试矩阵
 - [x] 完成 WP-4：Workflow->Providers 门禁补齐
 - [ ] 完成 WP-5：生产化后端与压测闭环
 
 ## 16. 当前执行快照（2026-02-23）
-- 已完成：R-ES-01、R-ES-02、R-ES-04、R-ES-05、R-ES-06、R-RM-01、R-RM-02、R-RM-03、R-RM-04、R-WF-01、R-WF-02、R-GOV-01
-- 部分完成：R-ES-03
-- 当前主阻塞：Replay 合同测试矩阵、生产 EventStore 后端与压测闭环
+- 已完成：R-ES-01、R-ES-02、R-ES-03、R-ES-04、R-ES-05、R-ES-06、R-RM-01、R-RM-02、R-RM-03、R-RM-04、R-WF-01、R-WF-02、R-GOV-01
+- 部分完成：无
+- 当前主阻塞：生产 EventStore 后端与压测闭环
 
 ## 17. 变更纪律
 1. 删除优先，不做兼容壳。
diff --git a/src/Aevatar.AI.Core/RoleGAgent.cs b/src/Aevatar.AI.Core/RoleGAgent.cs
index 5149775d5..6bded471e 100644
--- a/src/Aevatar.AI.Core/RoleGAgent.cs
+++ b/src/Aevatar.AI.Core/RoleGAgent.cs
@@ -17,6 +17,8 @@
 using Aevatar.Foundation.Abstractions.Attributes;
 using Aevatar.Foundation.Abstractions;
 using Aevatar.Foundation.Core;
+using Aevatar.Foundation.Core.EventSourcing;
+using Google.Protobuf;
 using Microsoft.Extensions.Logging;
 
 namespace Aevatar.AI.Core;
@@ -65,7 +67,7 @@ Task IRoleAgent.ConfigureAsync(RoleAgentConfig config, CancellationToken ct) =>
     [EventHandler]
     public async Task HandleConfigureRoleAgent(ConfigureRoleAgentEvent evt)
     {
-        SetRoleName(evt.RoleName);
+        await PersistDomainEventAsync(evt);
         await ((IRoleAgent)this).ConfigureAsync(new RoleAgentConfig
         {
             ProviderName = string.IsNullOrWhiteSpace(evt.ProviderName) ? "deepseek" : evt.ProviderName,
@@ -83,6 +85,19 @@ public async Task HandleConfigureRoleAgent(ConfigureRoleAgentEvent evt)
     public override Task<string> GetDescriptionAsync() =>
         Task.FromResult($"RoleGAgent[{RoleName}]:{Id}");
 
+    protected override RoleGAgentState TransitionState(RoleGAgentState current, IMessage evt) =>
+        StateTransitionMatcher
+            .Match(current, evt)
+            .On<ConfigureRoleAgentEvent>(ApplyConfigureRoleAgent)
+            .OrCurrent();
+
+    protected override Task OnStateChangedAsync(RoleGAgentState state, CancellationToken ct)
+    {
+        _ = ct;
+        RoleName = state.RoleName ?? string.Empty;
+        return Task.CompletedTask;
+    }
+
     /// <summary>
     /// Handles ChatRequestEvent via streaming LLM call.
     /// Publishes AG-UI three-phase events and logs the interaction.
@@ -128,4 +143,13 @@ await PublishAsync(new TextMessageEndEvent
             SessionId = request.SessionId,
         }, EventDirection.Up);
     }
+
+    private static RoleGAgentState ApplyConfigureRoleAgent(
+        RoleGAgentState current,
+        ConfigureRoleAgentEvent evt)
+    {
+        var next = current.Clone();
+        next.RoleName = evt.RoleName ?? string.Empty;
+        return next;
+    }
 }
diff --git a/src/Aevatar.AI.Core/RoleGAgentFactory.cs b/src/Aevatar.AI.Core/RoleGAgentFactory.cs
index ac85901d4..8e05ba9eb 100644
--- a/src/Aevatar.AI.Core/RoleGAgentFactory.cs
+++ b/src/Aevatar.AI.Core/RoleGAgentFactory.cs
@@ -46,16 +46,14 @@ public static Task ConfigureFromYaml(RoleGAgent agent, string yaml, IServiceProv
     /// <summary>应用 RoleYamlConfig 到 RoleGAgent。</summary>
     public static async Task ApplyConfig(RoleGAgent agent, RoleYamlConfig config, IServiceProvider services)
     {
-        // ─── 基础配置 ───
-        if (!string.IsNullOrEmpty(config.Name))
-            agent.SetRoleName(config.Name);
-
-        await agent.ConfigureAsync(new AIAgentConfig
+        // ─── 基础配置（事件优先） ───
+        await agent.HandleConfigureRoleAgent(new ConfigureRoleAgentEvent
         {
-            SystemPrompt = config.SystemPrompt ?? "",
+            RoleName = config.Name ?? string.Empty,
+            SystemPrompt = config.SystemPrompt ?? string.Empty,
             ProviderName = config.Provider ?? "deepseek",
-            Model = config.Model,
-            Temperature = config.Temperature,
+            Model = config.Model ?? string.Empty,
+            Temperature = config.Temperature ?? 0,
         });
 
         // ─── EventModules 创建 ───
diff --git a/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs b/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs
index 887b04588..ae0e5cd8c 100644
--- a/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs
+++ b/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs
@@ -4,7 +4,6 @@
 using Aevatar.AI.Core;
 using Aevatar.AI.Core.Hooks;
 using Aevatar.AI.Abstractions.Middleware;
-using Aevatar.Foundation.Abstractions;
 using Aevatar.Foundation.Abstractions.Persistence;
 using FluentAssertions;
 using Microsoft.Extensions.DependencyInjection;
@@ -19,7 +18,7 @@ public async Task ConfigureAsync_WhenSourceToolsShrink_ShouldRemoveStaleTools()
         var source = new MutableToolSource("tool-a", "tool-b");
         var services = new ServiceCollection();
         services.AddSingleton<IAgentToolSource>(source);
-        services.AddSingleton<IEventStore, TestEventStore>();
+        services.AddSingleton<IEventStore, InMemoryEventStoreForTests>();
         using var provider = services.BuildServiceProvider();
         var agent = new TestAIGAgent(provider.GetServices<IAgentToolSource>())
         {
@@ -41,7 +40,7 @@ public async Task ConfigureAsync_WhenSourceToolsChanged_ShouldKeepManualTools()
         var source = new MutableToolSource("source-old");
         var services = new ServiceCollection();
         services.AddSingleton<IAgentToolSource>(source);
-        services.AddSingleton<IEventStore, TestEventStore>();
+        services.AddSingleton<IEventStore, InMemoryEventStoreForTests>();
         using var provider = services.BuildServiceProvider();
         var agent = new TestAIGAgent(provider.GetServices<IAgentToolSource>())
         {
@@ -150,63 +149,4 @@ public async IAsyncEnumerable<LLMStreamChunk> ChatStreamAsync(
         }
     }
 
-    private sealed class TestEventStore : IEventStore
-    {
-        private readonly Dictionary<string, List<StateEvent>> _events = new(StringComparer.Ordinal);
-
-        public Task<long> AppendAsync(
-            string agentId,
-            IEnumerable<StateEvent> events,
-            long expectedVersion,
-            CancellationToken ct = default)
-        {
-            ct.ThrowIfCancellationRequested();
-            if (!_events.TryGetValue(agentId, out var stream))
-            {
-                stream = [];
-                _events[agentId] = stream;
-            }
-
-            var currentVersion = stream.Count == 0 ? 0 : stream[^1].Version;
-            if (currentVersion != expectedVersion)
-                throw new InvalidOperationException($"Optimistic concurrency conflict: expected {expectedVersion}, actual {currentVersion}");
-
-            stream.AddRange(events.Select(x => x.Clone()));
-            return Task.FromResult(stream.Count == 0 ? 0 : stream[^1].Version);
-        }
-
-        public Task<IReadOnlyList<StateEvent>> GetEventsAsync(
-            string agentId,
-            long? fromVersion = null,
-            CancellationToken ct = default)
-        {
-            ct.ThrowIfCancellationRequested();
-            if (!_events.TryGetValue(agentId, out var stream))
-                return Task.FromResult<IReadOnlyList<StateEvent>>([]);
-
-            IReadOnlyList<StateEvent> result = fromVersion.HasValue
-                ? stream.Where(x => x.Version > fromVersion.Value).Select(x => x.Clone()).ToList()
-                : stream.Select(x => x.Clone()).ToList();
-            return Task.FromResult(result);
-        }
-
-        public Task<long> GetVersionAsync(string agentId, CancellationToken ct = default)
-        {
-            ct.ThrowIfCancellationRequested();
-            if (!_events.TryGetValue(agentId, out var stream) || stream.Count == 0)
-                return Task.FromResult(0L);
-            return Task.FromResult(stream[^1].Version);
-        }
-
-        public Task<long> DeleteEventsUpToAsync(string agentId, long toVersion, CancellationToken ct = default)
-        {
-            ct.ThrowIfCancellationRequested();
-            if (toVersion <= 0 || !_events.TryGetValue(agentId, out var stream))
-                return Task.FromResult(0L);
-
-            var before = stream.Count;
-            stream.RemoveAll(x => x.Version <= toVersion);
-            return Task.FromResult((long)(before - stream.Count));
-        }
-    }
 }
diff --git a/test/Aevatar.AI.Tests/AIHooksAndRoleFactoryCoverageTests.cs b/test/Aevatar.AI.Tests/AIHooksAndRoleFactoryCoverageTests.cs
index 24721f6f1..18b0ce9d0 100644
--- a/test/Aevatar.AI.Tests/AIHooksAndRoleFactoryCoverageTests.cs
+++ b/test/Aevatar.AI.Tests/AIHooksAndRoleFactoryCoverageTests.cs
@@ -8,6 +8,7 @@
 using Aevatar.Foundation.Abstractions;
 using Aevatar.Foundation.Abstractions.EventModules;
 using Aevatar.Foundation.Abstractions.Hooks;
+using Aevatar.Foundation.Abstractions.Persistence;
 using FluentAssertions;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging.Abstractions;
@@ -95,6 +96,7 @@ public async Task RoleGAgentFactory_ShouldConfigureFromYamlAndWrapRoutableModule
         var services = new ServiceCollection();
         services.AddSingleton<ILLMProviderFactory, StubLLMProviderFactory>();
         services.AddSingleton<IEventModuleFactory, StubEventModuleFactory>();
+        services.AddSingleton<IEventStore, InMemoryEventStoreForTests>();
         await using var provider = services.BuildServiceProvider();
 
         var agent = CreateRoleAgent(provider);
@@ -124,6 +126,7 @@ public async Task RoleGAgentFactory_ShouldSupportDirectConfigWithoutExtensions()
     {
         var services = new ServiceCollection();
         services.AddSingleton<ILLMProviderFactory, StubLLMProviderFactory>();
+        services.AddSingleton<IEventStore, InMemoryEventStoreForTests>();
         await using var provider = services.BuildServiceProvider();
 
         var cfg = new RoleYamlConfig
@@ -217,5 +220,8 @@ private static RoleGAgent CreateRoleAgent(IServiceProvider provider) =>
             provider.GetServices<IAgentRunMiddleware>(),
             provider.GetServices<IToolCallMiddleware>(),
             provider.GetServices<ILLMCallMiddleware>(),
-            provider.GetServices<IAgentToolSource>());
+            provider.GetServices<IAgentToolSource>())
+        {
+            Services = provider,
+        };
 }
diff --git a/test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs b/test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs
new file mode 100644
index 000000000..4eb8796a2
--- /dev/null
+++ b/test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs
@@ -0,0 +1,87 @@
+using System.Reflection;
+using Aevatar.AI.Abstractions;
+using Aevatar.AI.Core;
+using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Core;
+using FluentAssertions;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.AI.Tests;
+
+public class RoleGAgentReplayContractTests
+{
+    [Fact]
+    public async Task ConfigureRoleEvent_ShouldPersistAndReplayRoleState()
+    {
+        var store = new InMemoryEventStoreForTests();
+        var services = new ServiceCollection()
+            .AddSingleton<IEventStore>(store)
+            .BuildServiceProvider();
+
+        var agent1 = CreateAgent(services, "role-replay-contract");
+        await agent1.ActivateAsync();
+        await agent1.HandleConfigureRoleAgent(new ConfigureRoleAgentEvent
+        {
+            RoleName = "researcher",
+            ProviderName = "mock",
+            Model = "m1",
+            SystemPrompt = "be helpful",
+        });
+        await agent1.DeactivateAsync();
+
+        var persisted = await store.GetEventsAsync("role-replay-contract");
+        persisted.Should().ContainSingle(x => x.EventType.Contains(nameof(ConfigureRoleAgentEvent), StringComparison.Ordinal));
+
+        var agent2 = CreateAgent(services, "role-replay-contract");
+        await agent2.ActivateAsync();
+
+        agent2.State.RoleName.Should().Be(agent1.State.RoleName);
+        agent2.RoleName.Should().Be("researcher");
+    }
+
+    [Fact]
+    public async Task RoleGAgentFactory_ShouldUseEventSourcedConfigurePath()
+    {
+        var store = new InMemoryEventStoreForTests();
+        var services = new ServiceCollection()
+            .AddSingleton<IEventStore>(store)
+            .BuildServiceProvider();
+
+        var agent1 = CreateAgent(services, "role-factory-replay");
+        await agent1.ActivateAsync();
+        await RoleGAgentFactory.ApplyConfig(agent1, new RoleYamlConfig
+        {
+            Name = "assistant",
+            Provider = "mock",
+            SystemPrompt = "system",
+        }, services);
+        await agent1.DeactivateAsync();
+
+        var persisted = await store.GetEventsAsync("role-factory-replay");
+        persisted.Should().ContainSingle(x => x.EventType.Contains(nameof(ConfigureRoleAgentEvent), StringComparison.Ordinal));
+
+        var agent2 = CreateAgent(services, "role-factory-replay");
+        await agent2.ActivateAsync();
+        agent2.State.RoleName.Should().Be("assistant");
+        agent2.RoleName.Should().Be("assistant");
+    }
+
+    private static RoleGAgent CreateAgent(IServiceProvider services, string actorId)
+    {
+        var agent = new RoleGAgent
+        {
+            Services = services,
+        };
+        AssignActorId(agent, actorId);
+        return agent;
+    }
+
+    private static void AssignActorId(RoleGAgent agent, string actorId)
+    {
+        var setIdMethod = typeof(GAgentBase).GetMethod(
+            "SetId",
+            BindingFlags.Instance | BindingFlags.NonPublic);
+        setIdMethod.Should().NotBeNull();
+        setIdMethod!.Invoke(agent, [actorId]);
+    }
+}
diff --git a/test/Aevatar.AI.Tests/TestDoubles/InMemoryEventStoreForTests.cs b/test/Aevatar.AI.Tests/TestDoubles/InMemoryEventStoreForTests.cs
new file mode 100644
index 000000000..428a0324b
--- /dev/null
+++ b/test/Aevatar.AI.Tests/TestDoubles/InMemoryEventStoreForTests.cs
@@ -0,0 +1,64 @@
+using Aevatar.Foundation.Abstractions;
+using Aevatar.Foundation.Abstractions.Persistence;
+
+namespace Aevatar.AI.Tests;
+
+internal sealed class InMemoryEventStoreForTests : IEventStore
+{
+    private readonly Dictionary<string, List<StateEvent>> _events = new(StringComparer.Ordinal);
+
+    public Task<long> AppendAsync(
+        string agentId,
+        IEnumerable<StateEvent> events,
+        long expectedVersion,
+        CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        if (!_events.TryGetValue(agentId, out var stream))
+        {
+            stream = [];
+            _events[agentId] = stream;
+        }
+
+        var currentVersion = stream.Count == 0 ? 0 : stream[^1].Version;
+        if (currentVersion != expectedVersion)
+            throw new InvalidOperationException($"Optimistic concurrency conflict: expected {expectedVersion}, actual {currentVersion}");
+
+        stream.AddRange(events.Select(x => x.Clone()));
+        return Task.FromResult(stream.Count == 0 ? 0 : stream[^1].Version);
+    }
+
+    public Task<IReadOnlyList<StateEvent>> GetEventsAsync(
+        string agentId,
+        long? fromVersion = null,
+        CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        if (!_events.TryGetValue(agentId, out var stream))
+            return Task.FromResult<IReadOnlyList<StateEvent>>([]);
+
+        IReadOnlyList<StateEvent> result = fromVersion.HasValue
+            ? stream.Where(x => x.Version > fromVersion.Value).Select(x => x.Clone()).ToList()
+            : stream.Select(x => x.Clone()).ToList();
+        return Task.FromResult(result);
+    }
+
+    public Task<long> GetVersionAsync(string agentId, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        if (!_events.TryGetValue(agentId, out var stream) || stream.Count == 0)
+            return Task.FromResult(0L);
+        return Task.FromResult(stream[^1].Version);
+    }
+
+    public Task<long> DeleteEventsUpToAsync(string agentId, long toVersion, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        if (toVersion <= 0 || !_events.TryGetValue(agentId, out var stream))
+            return Task.FromResult(0L);
+
+        var before = stream.Count;
+        stream.RemoveAll(x => x.Version <= toVersion);
+        return Task.FromResult((long)(before - stream.Count));
+    }
+}
diff --git a/tools/ci/architecture_guards.sh b/tools/ci/architecture_guards.sh
index bcbf67ba4..2a82ba9fa 100755
--- a/tools/ci/architecture_guards.sh
+++ b/tools/ci/architecture_guards.sh
@@ -315,6 +315,34 @@ if [ -n "${reducer_test_coverage_violations}" ]; then
   exit 1
 fi
 
+stateful_replay_contract_requirements=(
+  "WorkflowGAgent:test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs"
+  "ProjectionOwnershipCoordinatorGAgent:test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs"
+  "RoleGAgent:test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs"
+)
+
+for requirement in "${stateful_replay_contract_requirements[@]}"; do
+  actor_name="${requirement%%:*}"
+  contract_file="${requirement#*:}"
+
+  if [ ! -f "${contract_file}" ]; then
+    echo "Missing replay contract test file for ${actor_name}: ${contract_file}"
+    exit 1
+  fi
+
+  if ! rg -n "\\b${actor_name}\\b" "${contract_file}" >/dev/null; then
+    echo "${contract_file}"
+    echo "Replay contract test file must reference actor ${actor_name}."
+    exit 1
+  fi
+
+  if ! rg -n "Persist.*Event|Replay|Reactivate|ActivateAsync|DeactivateAsync" "${contract_file}" >/dev/null; then
+    echo "${contract_file}"
+    echo "Replay contract test file for ${actor_name} must assert persisted-event replay semantics."
+    exit 1
+  fi
+done
+
 echo "Running projection route-mapping guard..."
 bash tools/ci/projection_route_mapping_guard.sh
 

From 0bd186ea38fd4d37861d62b63c4fd048ba3021b2 Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Tue, 24 Feb 2026 01:29:59 +0800
Subject: [PATCH 13/46] Implement Garnet Event Store for Production Persistence

- Introduced `GarnetEventStore` as a production-ready implementation of `IEventStore`, utilizing Redis for event persistence with optimistic concurrency support.
- Updated dependency injection to automatically configure `GarnetEventStore` when the persistence backend is set to Garnet, ensuring seamless integration with Orleans runtime.
- Enhanced documentation to include details on the new Garnet-backed event store and its configuration options.
- Added integration tests for `GarnetEventStore` to verify event appending, retrieval, and optimistic concurrency handling.
- Updated existing tests to ensure compatibility with the new persistence implementation, maintaining code quality and reliability.
---
 aevatar.slnx                                  |   1 +
 docs/EVENT_SOURCING.md                        |   4 +-
 docs/FOUNDATION.md                            |   2 +-
 ...ng-elasticsearch-readmodel-requirements.md |  29 +-
 ...t-host-api-distributed-orleans-tm-kafka.md |   1 +
 ...ion.Runtime.Implementations.Orleans.csproj |   1 +
 .../ServiceCollectionExtensions.cs            |  14 +-
 .../README.md                                 |   2 +
 ....Persistence.Implementations.Garnet.csproj |  19 ++
 .../ServiceCollectionExtensions.cs            |  42 +++
 .../GarnetEventStore.cs                       | 282 ++++++++++++++++++
 .../GarnetEventStoreOptions.cs                |  22 ++
 .../README.md                                 |  19 ++
 src/Aevatar.Foundation.Runtime/README.md      |   2 +-
 src/Aevatar.Mainnet.Host.Api/README.md        |   2 +
 ...RuntimeServiceCollectionExtensionsTests.cs |  37 +++
 .../GarnetEventStoreIntegrationTests.cs       |  95 ++++++
 ...RuntimeServiceCollectionExtensionsTests.cs |  21 ++
 18 files changed, 579 insertions(+), 16 deletions(-)
 create mode 100644 src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.csproj
 create mode 100644 src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/DependencyInjection/ServiceCollectionExtensions.cs
 create mode 100644 src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/GarnetEventStore.cs
 create mode 100644 src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/GarnetEventStoreOptions.cs
 create mode 100644 src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/README.md
 create mode 100644 test/Aevatar.Foundation.Runtime.Hosting.Tests/GarnetEventStoreIntegrationTests.cs

diff --git a/aevatar.slnx b/aevatar.slnx
index e8a10a101..6c1479a87 100644
--- a/aevatar.slnx
+++ b/aevatar.slnx
@@ -19,6 +19,7 @@
   </Folder>
   <Folder Name="/src/">
     <Project Path="src\Aevatar.Foundation.Runtime.Hosting\Aevatar.Foundation.Runtime.Hosting.csproj" />
+    <Project Path="src\Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet\Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.csproj" />
     <Project Path="src/Aevatar.Foundation.Runtime.Implementations.Orleans/Aevatar.Foundation.Runtime.Implementations.Orleans.csproj" />
     <Project Path="src/Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming/Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming.csproj" />
     <Project Path="src/Aevatar.Foundation.Runtime.Implementations.Orleans.Transport.MassTransit/Aevatar.Foundation.Runtime.Implementations.Orleans.Transport.MassTransit.csproj" />
diff --git a/docs/EVENT_SOURCING.md b/docs/EVENT_SOURCING.md
index aff2f84dd..79cee26c2 100644
--- a/docs/EVENT_SOURCING.md
+++ b/docs/EVENT_SOURCING.md
@@ -26,6 +26,7 @@
 - Runtime 停用钩子分发实现：`src/Aevatar.Foundation.Runtime/Actor/ActorDeactivationHookDispatcher.cs`
 - Runtime 默认裁剪钩子：`src/Aevatar.Foundation.Runtime/Actor/EventStoreCompactionDeactivationHook.cs`
 - 本地持久化 EventStore：`src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs`
+- 生产持久化 EventStore（Garnet）：`src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/GarnetEventStore.cs`
 - Local Runtime 注入边界：`src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs`
 - Orleans Runtime 注入边界：`src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs`
 - 防回退门禁：`tools/ci/architecture_guards.sh`
@@ -76,7 +77,8 @@ public async Task Handle(IncrementRequested evt)
 - `AddAevatarRuntime()` 默认注册 `IActorDeactivationHookDispatcher -> ActorDeactivationHookDispatcher`（支持多 hook 顺序分发）。
 - 可通过 `AddFileEventStore(...)` 将 `IEventStore` 切换为本地持久化实现：`src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs`。
 - 调用 `AddFileEventStore(...)` 时，`IEventSourcingSnapshotStore<TState>` 会切换为 `FileEventSourcingSnapshotStore<TState>`，支持快照与事件裁剪后的持久化恢复。
-- 生产环境应替换为持久化实现（Redis/DB/日志存储等）。
+- 可通过 `AddGarnetEventStore(...)` 使用生产持久化实现：`src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/DependencyInjection/ServiceCollectionExtensions.cs`。
+- Orleans runtime 当 `PersistenceBackend=Garnet` 时，会自动装配 `IEventStore -> GarnetEventStore`（连接串复用 `GarnetConnectionString`），不再回退 `InMemoryEventStore`。
 - 如需自定义 ES 行为，可直接为 Agent 预设 `EventSourcing`，但必须保持相同语义契约。
 - 如需解耦 Agent 里的 `TransitionState` 逻辑，可注册多个 `IStateEventApplier<TState>`，按 `Order` 升序匹配应用。
 - Agent 侧推荐使用 `StateTransitionMatcher.Match(...).On<TEvent>(...).OrCurrent()`，避免重复 `Any + switch` 样板代码。
diff --git a/docs/FOUNDATION.md b/docs/FOUNDATION.md
index cedb46c80..c8e7ca85b 100644
--- a/docs/FOUNDATION.md
+++ b/docs/FOUNDATION.md
@@ -94,7 +94,7 @@ Agent 收到 `EventEnvelope` 后，会将两类处理器合并执行：
 口径说明：
 
 - `InMemory*` 组件仅用于开发/测试环境，不作为生产容量治理对象。
-- 生产环境应替换为 Redis/持久化实现，并在生产实现上评估内存增长与容量风险。
+- 生产环境应使用持久化实现（仓库已提供 `Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet`），并在生产实现上评估内存增长与容量风险。
 
 ### 分布式目标态（生产）
 
diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index 8b829d80b..a751555e1 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -2,7 +2,7 @@
 
 ## 1. 文档元信息
 - 状态：Active
-- 版本：v3.1
+- 版本：v3.2
 - 日期：2026-02-23
 - 适用范围：`src/`、`test/`、`tools/ci/`、`docs/architecture/`
 - 文档定位：唯一重构执行蓝图（需求、现状、差距、任务包、验收、门禁）
@@ -145,9 +145,14 @@
 
 ## 8. 差距详解
 
-### 8.1 Gap-P（生产化）EventStore 生产后端与压测基线未闭环
-- 当前 `IEventStore` 仍以 InMemory/File 为主。
-- 尚未建立容量压测与参数治理基线（快照间隔、保留事件数、压缩频率）。
+### 8.1 Gap-P（生产化）压测基线与常态化 smoke 未闭环
+- 已完成：
+  1. 生产级 `IEventStore` 后端已落地为 Garnet：`src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/GarnetEventStore.cs`。
+  2. Orleans runtime 在 `PersistenceBackend=Garnet` 时自动绑定 `GarnetEventStore`，不再回退 `InMemoryEventStore`。
+  3. Garnet EventStore 集成测试已补齐（环境变量门控）：`test/Aevatar.Foundation.Runtime.Hosting.Tests/GarnetEventStoreIntegrationTests.cs`。
+- 仍待完成：
+  1. 快照与事件裁剪参数压测基线（吞吐、恢复时延、数据增长曲线）。
+  2. provider e2e smoke 的 nightly 常态化接入与告警治理。
 
 ## 9. 目标架构
 
@@ -246,12 +251,12 @@ flowchart LR
   1. 守卫脚本更新。
   2. 对应守卫测试或 CI 验证记录。
 
-### WP-5：生产化增强（优先级 P2）
+### WP-5：生产化增强（优先级 P2，部分完成）
 - 目标：压实容量与稳定性。
 - 内容：
-  1. 引入生产级 `IEventStore` 后端（当前本地实现为 InMemory/File，生产需独立持久化方案）。
-  2. 建立快照与压缩参数压测基线：吞吐、恢复时延、磁盘增长曲线。
-  3. 将 provider e2e smoke 接入常态 CI（至少 nightly）。
+  1. [x] 引入生产级 `IEventStore` 后端：Garnet（独立模块 + Orleans 自动装配）。
+  2. [ ] 建立快照与压缩参数压测基线：吞吐、恢复时延、磁盘增长曲线。
+  3. [ ] 将 provider e2e smoke 接入常态 CI（至少 nightly）。
 - 说明：此工作包不影响 P0/P1 的架构闭环，可并行推进。
 
 ## 11. 里程碑与依赖
@@ -262,7 +267,7 @@ flowchart LR
 | M2 | 2026-02-27 | M1 | WP-2 完成，启动期 fail-fast 生效 |
 | M3 | 2026-03-01 | M1 | WP-3 完成，合同测试矩阵落地 |
 | M4 | 2026-03-02 | M1 | WP-4 完成，门禁补齐 |
-| M5 | 2026-03-06 | M2+M3+M4 | WP-5 初版（压测+生产后端方案） |
+| M5 | 2026-03-06 | M2+M3+M4 | WP-5 余项闭环（压测+nightly smoke） |
 
 ## 12. 验证矩阵（需求 -> 命令 -> 通过标准）
 
@@ -298,12 +303,12 @@ flowchart LR
 - [x] 完成 WP-2：启动期全量能力校验
 - [x] 完成 WP-3：Replay 合同测试矩阵
 - [x] 完成 WP-4：Workflow->Providers 门禁补齐
-- [ ] 完成 WP-5：生产化后端与压测闭环
+- [ ] 完成 WP-5：压测基线与 nightly smoke 闭环
 
 ## 16. 当前执行快照（2026-02-23）
 - 已完成：R-ES-01、R-ES-02、R-ES-03、R-ES-04、R-ES-05、R-ES-06、R-RM-01、R-RM-02、R-RM-03、R-RM-04、R-WF-01、R-WF-02、R-GOV-01
-- 部分完成：无
-- 当前主阻塞：生产 EventStore 后端与压测闭环
+- 部分完成：WP-5-1（Garnet EventStore 生产后端 + Orleans 自动装配 + 集成测试）
+- 当前主阻塞：压测基线与 nightly smoke 尚未接入
 
 ## 17. 变更纪律
 1. 删除优先，不做兼容壳。
diff --git a/docs/architecture/mainnet-host-api-distributed-orleans-tm-kafka.md b/docs/architecture/mainnet-host-api-distributed-orleans-tm-kafka.md
index b9984e04c..f5b31b1d2 100644
--- a/docs/architecture/mainnet-host-api-distributed-orleans-tm-kafka.md
+++ b/docs/architecture/mainnet-host-api-distributed-orleans-tm-kafka.md
@@ -71,6 +71,7 @@ flowchart LR
 - Stream Forward/Topology 的权威状态仍在 Orleans Grain（`IStreamTopologyGrain`），非中间层进程内事实态。
 - 该版本不改业务层编排逻辑，仅替换 runtime 与传输实现。
 - Orleans grain state 与 Stream `PubSubStore` 持久化可按配置切换到 Garnet。
+- 当 `ActorRuntime:OrleansPersistenceBackend=Garnet` 时，`IEventStore` 也会自动切换到 `GarnetEventStore`，与 Actor 持久化后端保持一致。
 - `Localhost` 模式使用 `UseLocalhostClustering`，适合本机多进程开发。
 - `Development` 模式使用 `UseDevelopmentClustering + ConfigureEndpoints`，可通过主节点实现多机测试集群。
 - 生产跨主机集群建议替换为持久化 Membership Provider。
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Aevatar.Foundation.Runtime.Implementations.Orleans.csproj b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Aevatar.Foundation.Runtime.Implementations.Orleans.csproj
index 8c15d154c..b85dc850f 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Aevatar.Foundation.Runtime.Implementations.Orleans.csproj
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Aevatar.Foundation.Runtime.Implementations.Orleans.csproj
@@ -10,6 +10,7 @@
     <ProjectReference Include="..\Aevatar.Foundation.Abstractions\Aevatar.Foundation.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.Foundation.Core\Aevatar.Foundation.Core.csproj" />
     <ProjectReference Include="..\Aevatar.Foundation.Runtime\Aevatar.Foundation.Runtime.csproj" />
+    <ProjectReference Include="..\Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet\Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.csproj" />
     <ProjectReference Include="..\Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming\Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
index 24cc696d9..8520b4539 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
@@ -1,6 +1,7 @@
 using Aevatar.Foundation.Abstractions.TypeSystem;
 using Aevatar.Foundation.Core.TypeSystem;
 using Aevatar.Foundation.Runtime.Actors;
+using Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.DependencyInjection;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Actors;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming.DependencyInjection;
@@ -30,7 +31,18 @@ public static IServiceCollection AddAevatarFoundationRuntimeOrleans(
         services.TryAddSingleton<IRuntimeActorStateBindingAccessor, AsyncLocalRuntimeActorStateBindingAccessor>();
         services.TryAddTransient(typeof(IStateStore<>), typeof(RuntimeActorGrainStateStore<>));
         services.TryAddTransient(typeof(IEventSourcingSnapshotStore<>), typeof(RuntimeActorGrainEventSourcingSnapshotStore<>));
-        services.TryAddSingleton<IEventStore, InMemoryEventStore>();
+        if (IsPersistenceBackend(options, AevatarOrleansRuntimeOptions.PersistenceBackendGarnet))
+        {
+            services.AddGarnetEventStore(garnetOptions =>
+            {
+                garnetOptions.ConnectionString = options.GarnetConnectionString;
+            });
+        }
+        else
+        {
+            services.TryAddSingleton<IEventStore, InMemoryEventStore>();
+        }
+
         services.TryAddSingleton<IEventStoreCompactionScheduler, DeferredEventStoreCompactionScheduler>();
         services.TryAddSingleton<IActorDeactivationHook, EventStoreCompactionDeactivationHook>();
         services.TryAddSingleton<IActorDeactivationHookDispatcher, ActorDeactivationHookDispatcher>();
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/README.md b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/README.md
index 99461b928..26d04ec0c 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/README.md
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/README.md
@@ -55,6 +55,8 @@ siloBuilder.AddAevatarFoundationRuntimeOrleans(options =>
 });
 ```
 
+当持久化后端选择 `Garnet` 时，Event Sourcing 的 `IEventStore` 也会自动切换为 `GarnetEventStore`（不再使用 `InMemoryEventStore`），确保重启后可依赖事件流恢复。
+
 ## MassTransitAdapter 启用方式
 
 当需要 Orleans Stream 通过 MassTransit 传输时，显式启用 MassTransit 适配扩展，并选择 Kafka 作为传输实现：
diff --git a/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.csproj b/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.csproj
new file mode 100644
index 000000000..24062221a
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.csproj
@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AssemblyName>Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet</AssemblyName>
+    <RootNamespace>Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet</RootNamespace>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Aevatar.Foundation.Abstractions\Aevatar.Foundation.Abstractions.csproj" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Google.Protobuf" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
+    <PackageReference Include="StackExchange.Redis" />
+  </ItemGroup>
+</Project>
diff --git a/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/DependencyInjection/ServiceCollectionExtensions.cs
new file mode 100644
index 000000000..b9bee2ea0
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/DependencyInjection/ServiceCollectionExtensions.cs
@@ -0,0 +1,42 @@
+using Aevatar.Foundation.Abstractions.Persistence;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
+using StackExchange.Redis;
+
+namespace Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.DependencyInjection;
+
+public static class ServiceCollectionExtensions
+{
+    /// <summary>
+    /// Replaces <see cref="IEventStore"/> with Garnet-backed persistence.
+    /// </summary>
+    public static IServiceCollection AddGarnetEventStore(
+        this IServiceCollection services,
+        Action<GarnetEventStoreOptions>? configure = null)
+    {
+        ArgumentNullException.ThrowIfNull(services);
+
+        var options = new GarnetEventStoreOptions();
+        configure?.Invoke(options);
+        ValidateOptions(options);
+
+        services.Replace(ServiceDescriptor.Singleton(options));
+        services.TryAddSingleton<IConnectionMultiplexer>(sp =>
+        {
+            var garnetOptions = sp.GetRequiredService<GarnetEventStoreOptions>();
+            var connectionOptions = ConfigurationOptions.Parse(garnetOptions.ConnectionString);
+            connectionOptions.AbortOnConnectFail = false;
+            return ConnectionMultiplexer.Connect(connectionOptions);
+        });
+        services.Replace(ServiceDescriptor.Singleton<IEventStore, GarnetEventStore>());
+        return services;
+    }
+
+    private static void ValidateOptions(GarnetEventStoreOptions options)
+    {
+        if (string.IsNullOrWhiteSpace(options.ConnectionString))
+            throw new InvalidOperationException("GarnetEventStore requires a non-empty connection string.");
+        if (string.IsNullOrWhiteSpace(options.KeyPrefix))
+            throw new InvalidOperationException("GarnetEventStore requires a non-empty key prefix.");
+    }
+}
diff --git a/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/GarnetEventStore.cs b/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/GarnetEventStore.cs
new file mode 100644
index 000000000..187725a50
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/GarnetEventStore.cs
@@ -0,0 +1,282 @@
+using System.Text;
+using Aevatar.Foundation.Abstractions;
+using Aevatar.Foundation.Abstractions.Persistence;
+using Google.Protobuf;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+using StackExchange.Redis;
+
+namespace Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet;
+
+/// <summary>
+/// Garnet-backed event store with optimistic concurrency and stream compaction support.
+/// </summary>
+public sealed class GarnetEventStore : IEventStore
+{
+    private const string AppendScript = """
+                                      local currentRaw = redis.call('GET', KEYS[1])
+                                      local current = 0
+                                      if currentRaw then
+                                        current = tonumber(currentRaw)
+                                      end
+
+                                      local expected = tonumber(ARGV[1])
+                                      if current ~= expected then
+                                        return {0, current}
+                                      end
+
+                                      local count = tonumber(ARGV[2])
+                                      if count <= 0 then
+                                        return {1, current}
+                                      end
+
+                                      local latest = current
+                                      for i = 0, count - 1 do
+                                        local base = 3 + (i * 2)
+                                        local version = tonumber(ARGV[base])
+                                        local payload = ARGV[base + 1]
+                                        local versionField = tostring(version)
+
+                                        redis.call('ZADD', KEYS[2], version, versionField)
+                                        redis.call('HSET', KEYS[3], versionField, payload)
+                                        latest = version
+                                      end
+
+                                      redis.call('SET', KEYS[1], tostring(latest))
+                                      return {1, latest}
+                                      """;
+
+    private const string DeleteScript = """
+                                      local toVersion = tonumber(ARGV[1])
+                                      if toVersion <= 0 then
+                                        return 0
+                                      end
+
+                                      local versions = redis.call('ZRANGEBYSCORE', KEYS[1], '-inf', toVersion)
+                                      local removed = #versions
+                                      if removed == 0 then
+                                        return 0
+                                      end
+
+                                      redis.call('ZREMRANGEBYSCORE', KEYS[1], '-inf', toVersion)
+                                      for i = 1, removed do
+                                        redis.call('HDEL', KEYS[2], versions[i])
+                                      end
+
+                                      return removed
+                                      """;
+
+    private readonly IDatabase _database;
+    private readonly string _keyPrefix;
+    private readonly ILogger<GarnetEventStore> _logger;
+
+    public GarnetEventStore(
+        IConnectionMultiplexer connectionMultiplexer,
+        GarnetEventStoreOptions options,
+        ILogger<GarnetEventStore>? logger = null)
+    {
+        ArgumentNullException.ThrowIfNull(connectionMultiplexer);
+        ArgumentNullException.ThrowIfNull(options);
+        if (string.IsNullOrWhiteSpace(options.ConnectionString))
+            throw new InvalidOperationException("GarnetEventStore requires a non-empty connection string.");
+        if (string.IsNullOrWhiteSpace(options.KeyPrefix))
+            throw new InvalidOperationException("GarnetEventStore requires a non-empty key prefix.");
+
+        _database = connectionMultiplexer.GetDatabase(options.Database);
+        _keyPrefix = options.KeyPrefix.Trim();
+        _logger = logger ?? NullLogger<GarnetEventStore>.Instance;
+    }
+
+    public async Task<long> AppendAsync(
+        string agentId,
+        IEnumerable<StateEvent> events,
+        long expectedVersion,
+        CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ArgumentNullException.ThrowIfNull(events);
+        ct.ThrowIfCancellationRequested();
+
+        var pendingEvents = events.Select(static evt => evt.Clone()).ToList();
+        if (pendingEvents.Count == 0)
+            return await GetVersionAsync(agentId, ct);
+
+        ValidateEventVersions(pendingEvents, expectedVersion);
+
+        var keys = BuildKeys(agentId);
+        var scriptArgs = BuildAppendScriptArgs(expectedVersion, pendingEvents);
+        var rawResult = await _database.ScriptEvaluateAsync(
+            AppendScript,
+            [keys.VersionKey, keys.EventIndexKey, keys.EventDataKey],
+            scriptArgs);
+        ct.ThrowIfCancellationRequested();
+
+        var result = (RedisResult[])rawResult!;
+        if (result.Length != 2)
+            throw new InvalidOperationException("Unexpected Garnet append script result.");
+
+        var status = (long)result[0];
+        var actualVersion = (long)result[1];
+        if (status == 0)
+        {
+            throw new InvalidOperationException(
+                $"Optimistic concurrency conflict: expected {expectedVersion}, actual {actualVersion}");
+        }
+
+        if (status != 1)
+            throw new InvalidOperationException($"Unexpected Garnet append script status: {status}.");
+
+        _logger.LogDebug(
+            "Garnet event-store append completed. agentId={AgentId} appended={Count} version={Version}",
+            agentId,
+            pendingEvents.Count,
+            actualVersion);
+        return actualVersion;
+    }
+
+    public async Task<IReadOnlyList<StateEvent>> GetEventsAsync(
+        string agentId,
+        long? fromVersion = null,
+        CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ct.ThrowIfCancellationRequested();
+
+        var keys = BuildKeys(agentId);
+        var versions = await _database.SortedSetRangeByScoreAsync(
+            keys.EventIndexKey,
+            start: fromVersion ?? double.NegativeInfinity,
+            stop: double.PositiveInfinity,
+            exclude: fromVersion.HasValue ? Exclude.Start : Exclude.None,
+            order: Order.Ascending);
+        ct.ThrowIfCancellationRequested();
+        if (versions.Length == 0)
+            return [];
+
+        var payloads = await _database.HashGetAsync(keys.EventDataKey, versions);
+        ct.ThrowIfCancellationRequested();
+        if (payloads.Length != versions.Length)
+        {
+            throw new InvalidOperationException(
+                $"Corrupted Garnet event stream for agent '{agentId}': version/payload length mismatch.");
+        }
+
+        var events = new List<StateEvent>(payloads.Length);
+        for (var i = 0; i < payloads.Length; i++)
+        {
+            var payload = payloads[i];
+            if (payload.IsNull)
+            {
+                throw new InvalidOperationException(
+                    $"Corrupted Garnet event stream for agent '{agentId}': missing payload at version '{versions[i]}'.");
+            }
+
+            var bytes = (byte[]?)payload;
+            if (bytes == null || bytes.Length == 0)
+            {
+                throw new InvalidOperationException(
+                    $"Corrupted Garnet event stream for agent '{agentId}': empty payload at version '{versions[i]}'.");
+            }
+
+            events.Add(StateEvent.Parser.ParseFrom(bytes));
+        }
+
+        return events;
+    }
+
+    public async Task<long> GetVersionAsync(string agentId, CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ct.ThrowIfCancellationRequested();
+
+        var keys = BuildKeys(agentId);
+        var rawVersion = await _database.StringGetAsync(keys.VersionKey);
+        ct.ThrowIfCancellationRequested();
+        if (rawVersion.IsNullOrEmpty)
+            return 0;
+
+        if (!long.TryParse(rawVersion.ToString(), out var version))
+            throw new InvalidOperationException($"Corrupted Garnet stream version for agent '{agentId}'.");
+
+        return version;
+    }
+
+    public async Task<long> DeleteEventsUpToAsync(
+        string agentId,
+        long toVersion,
+        CancellationToken ct = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(agentId);
+        ct.ThrowIfCancellationRequested();
+        if (toVersion <= 0)
+            return 0;
+
+        var keys = BuildKeys(agentId);
+        var rawDeleted = await _database.ScriptEvaluateAsync(
+            DeleteScript,
+            [keys.EventIndexKey, keys.EventDataKey],
+            [toVersion]);
+        ct.ThrowIfCancellationRequested();
+
+        var deleted = (long)rawDeleted;
+        _logger.LogDebug(
+            "Garnet event-store compaction completed. agentId={AgentId} compactToVersion={CompactToVersion} deletedEvents={DeletedEvents}",
+            agentId,
+            toVersion,
+            deleted);
+        return deleted;
+    }
+
+    private StreamKeys BuildKeys(string agentId)
+    {
+        var encodedAgentId = EncodeAgentId(agentId);
+        return new StreamKeys(
+            VersionKey: $"{_keyPrefix}:{{{encodedAgentId}}}:version",
+            EventIndexKey: $"{_keyPrefix}:{{{encodedAgentId}}}:index",
+            EventDataKey: $"{_keyPrefix}:{{{encodedAgentId}}}:data");
+    }
+
+    private static string EncodeAgentId(string agentId)
+    {
+        return Convert.ToBase64String(Encoding.UTF8.GetBytes(agentId))
+            .Replace('+', '-')
+            .Replace('/', '_')
+            .TrimEnd('=');
+    }
+
+    private static RedisValue[] BuildAppendScriptArgs(
+        long expectedVersion,
+        IReadOnlyList<StateEvent> pendingEvents)
+    {
+        var values = new RedisValue[2 + (pendingEvents.Count * 2)];
+        values[0] = expectedVersion;
+        values[1] = pendingEvents.Count;
+        for (var i = 0; i < pendingEvents.Count; i++)
+        {
+            values[2 + (i * 2)] = pendingEvents[i].Version;
+            values[3 + (i * 2)] = pendingEvents[i].ToByteArray();
+        }
+
+        return values;
+    }
+
+    private static void ValidateEventVersions(
+        IReadOnlyList<StateEvent> pendingEvents,
+        long expectedVersion)
+    {
+        for (var i = 0; i < pendingEvents.Count; i++)
+        {
+            var expectedEventVersion = expectedVersion + i + 1;
+            if (pendingEvents[i].Version != expectedEventVersion)
+            {
+                throw new InvalidOperationException(
+                    "StateEvent versions must be strictly contiguous and start from expectedVersion + 1.");
+            }
+        }
+    }
+
+    private sealed record StreamKeys(
+        RedisKey VersionKey,
+        RedisKey EventIndexKey,
+        RedisKey EventDataKey);
+}
diff --git a/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/GarnetEventStoreOptions.cs b/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/GarnetEventStoreOptions.cs
new file mode 100644
index 000000000..76b4275d6
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/GarnetEventStoreOptions.cs
@@ -0,0 +1,22 @@
+namespace Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet;
+
+/// <summary>
+/// Configuration for Garnet-backed event-store persistence.
+/// </summary>
+public sealed class GarnetEventStoreOptions
+{
+    /// <summary>
+    /// Garnet connection string (Redis protocol), for example: localhost:6379,abortConnect=false.
+    /// </summary>
+    public string ConnectionString { get; set; } = "localhost:6379,abortConnect=false";
+
+    /// <summary>
+    /// Logical key prefix for event streams.
+    /// </summary>
+    public string KeyPrefix { get; set; } = "aevatar:eventstore";
+
+    /// <summary>
+    /// Database index. -1 uses the default database from connection options.
+    /// </summary>
+    public int Database { get; set; } = -1;
+}
diff --git a/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/README.md b/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/README.md
new file mode 100644
index 000000000..d792d03a6
--- /dev/null
+++ b/src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/README.md
@@ -0,0 +1,19 @@
+# Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet
+
+该项目提供 `IEventStore` 的 Garnet 生产实现，不绑定 Workflow/AI 业务语义。
+
+## 提供能力
+
+- `GarnetEventStore`：基于 Redis 协议（Garnet）持久化 `StateEvent`。
+- `AddGarnetEventStore(...)`：DI 装配扩展，替换默认 `IEventStore`。
+- `GarnetEventStoreOptions`：连接串、Key 前缀、Database 配置。
+
+## 关键语义
+
+- 追加写入走 Lua 脚本，带 `expectedVersion` 乐观并发检查。
+- 读取按版本有序回放，支持 `fromVersion` 增量读取。
+- `DeleteEventsUpToAsync` 支持快照后的历史事件裁剪。
+
+## 运行时装配
+
+在 Orleans runtime 中，当 `PersistenceBackend=Garnet` 时会自动装配 `GarnetEventStore`（无需业务层额外绑定）。
diff --git a/src/Aevatar.Foundation.Runtime/README.md b/src/Aevatar.Foundation.Runtime/README.md
index 7c745a482..56aa522cb 100644
--- a/src/Aevatar.Foundation.Runtime/README.md
+++ b/src/Aevatar.Foundation.Runtime/README.md
@@ -75,7 +75,7 @@ Event Sourcing 默认启用自动快照与事件裁剪（快照成功后清理
 
 可通过 `ActorRuntime:EventSourcing:*` 配置覆盖。
 
-生产环境可替换为数据库或其它持久化实现，接口由 Aevatar 抽象层定义。
+生产环境可替换为数据库或其它持久化实现，接口由 Aevatar 抽象层定义。当前仓库提供了 Garnet 后端实现：`src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet`（`AddGarnetEventStore(...)`）。
 
 ---
 
diff --git a/src/Aevatar.Mainnet.Host.Api/README.md b/src/Aevatar.Mainnet.Host.Api/README.md
index f2ed4e42c..241fcbcee 100644
--- a/src/Aevatar.Mainnet.Host.Api/README.md
+++ b/src/Aevatar.Mainnet.Host.Api/README.md
@@ -31,6 +31,8 @@ ASPNETCORE_ENVIRONMENT=Distributed dotnet run --project src/Aevatar.Mainnet.Host
 - `ActorRuntime:MassTransitTransportBackend=Kafka`
 - `Orleans:ClusteringMode=Localhost`
 
+在上述配置下，Event Sourcing 的 `IEventStore` 会自动使用 `GarnetEventStore`（连接串复用 `ActorRuntime:OrleansGarnetConnectionString`）。
+
 `Orleans:ClusteringMode` 支持：
 
 - `Localhost`：本机多进程开发模式（默认）。
diff --git a/test/Aevatar.Foundation.Runtime.Hosting.Tests/AevatarActorRuntimeServiceCollectionExtensionsTests.cs b/test/Aevatar.Foundation.Runtime.Hosting.Tests/AevatarActorRuntimeServiceCollectionExtensionsTests.cs
index aef535923..1f6f1af88 100644
--- a/test/Aevatar.Foundation.Runtime.Hosting.Tests/AevatarActorRuntimeServiceCollectionExtensionsTests.cs
+++ b/test/Aevatar.Foundation.Runtime.Hosting.Tests/AevatarActorRuntimeServiceCollectionExtensionsTests.cs
@@ -7,6 +7,8 @@
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Grains;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Actors;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming;
+using Aevatar.Foundation.Runtime.Persistence;
+using Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet;
 using Aevatar.Foundation.Runtime.Streaming.Implementations.MassTransit;
 using Aevatar.Foundation.Runtime.Streaming;
 using FluentAssertions;
@@ -242,6 +244,41 @@ public void AddAevatarActorRuntime_WhenProviderIsOrleans_ShouldReplaceOpenGeneri
         descriptor!.ImplementationType.Should().Be(typeof(RuntimeActorGrainStateStore<>));
     }
 
+    [Fact]
+    public void AddAevatarActorRuntime_WhenOrleansPersistenceBackendIsGarnet_ShouldRegisterGarnetEventStore()
+    {
+        var services = new ServiceCollection();
+        var configuration = BuildConfiguration(new Dictionary<string, string?>
+        {
+            [$"{AevatarActorRuntimeOptions.SectionName}:Provider"] = AevatarActorRuntimeOptions.ProviderOrleans,
+            [$"{AevatarActorRuntimeOptions.SectionName}:OrleansPersistenceBackend"] = AevatarActorRuntimeOptions.OrleansPersistenceBackendGarnet,
+            [$"{AevatarActorRuntimeOptions.SectionName}:OrleansGarnetConnectionString"] = "garnet.local:6379,abortConnect=false",
+        });
+
+        services.AddAevatarActorRuntime(configuration);
+
+        var descriptor = services.LastOrDefault(x => x.ServiceType == typeof(IEventStore));
+        descriptor.Should().NotBeNull();
+        descriptor!.ImplementationType.Should().Be(typeof(GarnetEventStore));
+    }
+
+    [Fact]
+    public void AddAevatarActorRuntime_WhenOrleansPersistenceBackendIsInMemory_ShouldKeepInMemoryEventStore()
+    {
+        var services = new ServiceCollection();
+        var configuration = BuildConfiguration(new Dictionary<string, string?>
+        {
+            [$"{AevatarActorRuntimeOptions.SectionName}:Provider"] = AevatarActorRuntimeOptions.ProviderOrleans,
+            [$"{AevatarActorRuntimeOptions.SectionName}:OrleansPersistenceBackend"] = AevatarActorRuntimeOptions.OrleansPersistenceBackendInMemory,
+        });
+
+        services.AddAevatarActorRuntime(configuration);
+
+        var descriptor = services.LastOrDefault(x => x.ServiceType == typeof(IEventStore));
+        descriptor.Should().NotBeNull();
+        descriptor!.ImplementationType.Should().Be(typeof(InMemoryEventStore));
+    }
+
     [Fact]
     public void AddAevatarActorRuntime_WhenOrleansPersistenceBackendIsUnsupported_ShouldThrow()
     {
diff --git a/test/Aevatar.Foundation.Runtime.Hosting.Tests/GarnetEventStoreIntegrationTests.cs b/test/Aevatar.Foundation.Runtime.Hosting.Tests/GarnetEventStoreIntegrationTests.cs
new file mode 100644
index 000000000..97398dc49
--- /dev/null
+++ b/test/Aevatar.Foundation.Runtime.Hosting.Tests/GarnetEventStoreIntegrationTests.cs
@@ -0,0 +1,95 @@
+using Aevatar.Foundation.Abstractions;
+using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet;
+using Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.DependencyInjection;
+using FluentAssertions;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.Foundation.Runtime.Hosting.Tests;
+
+public sealed class GarnetEventStoreIntegrationTests
+{
+    [GarnetIntegrationFact]
+    public async Task GarnetEventStore_ShouldAppendReplayAndCompactEvents()
+    {
+        var connectionString = RequireGarnetConnectionString();
+        var keyPrefix = $"aevatar:test:eventstore:{Guid.NewGuid():N}";
+        var agentId = $"agent-{Guid.NewGuid():N}";
+
+        using var provider = BuildProvider(connectionString, keyPrefix);
+        var store = provider.GetRequiredService<IEventStore>();
+
+        var firstBatch = CreateEvents(agentId, startVersion: 1, count: 3);
+        (await store.AppendAsync(agentId, firstBatch, expectedVersion: 0)).Should().Be(3);
+        (await store.GetVersionAsync(agentId)).Should().Be(3);
+
+        var all = await store.GetEventsAsync(agentId);
+        all.Select(x => x.Version).Should().Equal(1, 2, 3);
+
+        var removed = await store.DeleteEventsUpToAsync(agentId, toVersion: 2);
+        removed.Should().Be(2);
+        (await store.GetVersionAsync(agentId)).Should().Be(3);
+
+        var retained = await store.GetEventsAsync(agentId);
+        retained.Select(x => x.Version).Should().Equal(3);
+
+        var secondBatch = CreateEvents(agentId, startVersion: 4, count: 2);
+        (await store.AppendAsync(agentId, secondBatch, expectedVersion: 3)).Should().Be(5);
+
+        var afterAppend = await store.GetEventsAsync(agentId);
+        afterAppend.Select(x => x.Version).Should().Equal(3, 4, 5);
+    }
+
+    [GarnetIntegrationFact]
+    public async Task GarnetEventStore_ShouldEnforceOptimisticConcurrency()
+    {
+        var connectionString = RequireGarnetConnectionString();
+        var keyPrefix = $"aevatar:test:eventstore:{Guid.NewGuid():N}";
+        var agentId = $"agent-{Guid.NewGuid():N}";
+
+        using var provider = BuildProvider(connectionString, keyPrefix);
+        var store = provider.GetRequiredService<IEventStore>();
+
+        await store.AppendAsync(agentId, CreateEvents(agentId, startVersion: 1, count: 1), expectedVersion: 0);
+
+        var conflicting = () => store.AppendAsync(
+            agentId,
+            CreateEvents(agentId, startVersion: 2, count: 1),
+            expectedVersion: 0);
+        await conflicting.Should().ThrowAsync<InvalidOperationException>()
+            .WithMessage("*Optimistic concurrency conflict*");
+    }
+
+    private static ServiceProvider BuildProvider(string connectionString, string keyPrefix)
+    {
+        var services = new ServiceCollection();
+        services.AddGarnetEventStore(options =>
+        {
+            options.ConnectionString = connectionString;
+            options.KeyPrefix = keyPrefix;
+        });
+        return services.BuildServiceProvider();
+    }
+
+    private static StateEvent[] CreateEvents(string agentId, int startVersion, int count)
+    {
+        var events = new StateEvent[count];
+        for (var i = 0; i < count; i++)
+        {
+            var version = startVersion + i;
+            events[i] = new StateEvent
+            {
+                EventId = Guid.NewGuid().ToString("N"),
+                AgentId = agentId,
+                EventType = "test",
+                Version = version,
+            };
+        }
+
+        return events;
+    }
+
+    private static string RequireGarnetConnectionString() =>
+        Environment.GetEnvironmentVariable("AEVATAR_TEST_GARNET_CONNECTION_STRING")
+        ?? throw new InvalidOperationException("Missing AEVATAR_TEST_GARNET_CONNECTION_STRING.");
+}
diff --git a/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansRuntimeServiceCollectionExtensionsTests.cs b/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansRuntimeServiceCollectionExtensionsTests.cs
index 77e128c50..fddf21034 100644
--- a/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansRuntimeServiceCollectionExtensionsTests.cs
+++ b/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansRuntimeServiceCollectionExtensionsTests.cs
@@ -1,6 +1,8 @@
 using Aevatar.Foundation.Runtime.Implementations.Orleans.DependencyInjection;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Grains;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming;
+using Aevatar.Foundation.Runtime.Persistence;
+using Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet;
 using Aevatar.Foundation.Abstractions.Persistence;
 using FluentAssertions;
 using Microsoft.Extensions.DependencyInjection;
@@ -57,6 +59,25 @@ public void AddAevatarFoundationRuntimeOrleans_ServiceCollection_WhenPersistence
         var options = provider.GetRequiredService<AevatarOrleansRuntimeOptions>();
         options.PersistenceBackend.Should().Be(AevatarOrleansRuntimeOptions.PersistenceBackendGarnet);
         options.GarnetConnectionString.Should().Be("garnet.internal:6379,abortConnect=false");
+
+        var descriptor = services.LastOrDefault(x => x.ServiceType == typeof(IEventStore));
+        descriptor.Should().NotBeNull();
+        descriptor!.ImplementationType.Should().Be(typeof(GarnetEventStore));
+    }
+
+    [Fact]
+    public void AddAevatarFoundationRuntimeOrleans_ServiceCollection_WhenPersistenceBackendIsInMemory_ShouldKeepInMemoryEventStore()
+    {
+        var services = new ServiceCollection();
+
+        services.AddAevatarFoundationRuntimeOrleans(options =>
+        {
+            options.PersistenceBackend = AevatarOrleansRuntimeOptions.PersistenceBackendInMemory;
+        });
+
+        var descriptor = services.LastOrDefault(x => x.ServiceType == typeof(IEventStore));
+        descriptor.Should().NotBeNull();
+        descriptor!.ImplementationType.Should().Be(typeof(InMemoryEventStore));
     }
 
     [Fact]

From d6d875efaa02146f81ff115e69c7d82ba2ad12be Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Tue, 24 Feb 2026 01:42:10 +0800
Subject: [PATCH 14/46] Enhance CI Workflow with Orleans Garnet Persistence
 Integration Job

- Added a new CI job `orleans-garnet-persistence-integration` to run the Orleans Garnet persistence smoke test, triggered by specific events such as pushes to `main` or `dev` branches and manual dispatch.
- Updated the README documentation to include details about the new job and its purpose.
- Refactored the `StatefulAgentSnapshot` test method to `StatefulAgentEventSourcedState` for clarity and improved state transition logic in the `RecordingGarnetStatefulAgent` class.
---
 .github/workflows/ci.yml                      | 20 +++++++++++++++++++
 ...rleansGarnetPersistenceIntegrationTests.cs | 16 +++++++++++----
 tools/ci/README.md                            |  3 +++
 3 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c54709ec3..aeddba3a7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -193,6 +193,26 @@ jobs:
         if: always()
         run: docker compose down --volumes --remove-orphans
 
+  orleans-garnet-persistence-integration:
+    if: |
+      github.event_name != 'schedule' && (
+        github.event_name == 'workflow_dispatch' ||
+        (github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/dev')) ||
+        needs.changes.outputs.kafka_runtime == 'true'
+      )
+    needs:
+      - changes
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Prepare Runner
+        uses: ./.github/actions/prepare-runner
+
+      - name: Orleans Garnet Persistence Smoke Test
+        run: bash tools/ci/orleans_garnet_persistence_smoke.sh
+
   coverage-quality:
     if: |
       github.event_name == 'workflow_dispatch' ||
diff --git a/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansGarnetPersistenceIntegrationTests.cs b/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansGarnetPersistenceIntegrationTests.cs
index 06211a6ae..64c5b3dc2 100644
--- a/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansGarnetPersistenceIntegrationTests.cs
+++ b/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansGarnetPersistenceIntegrationTests.cs
@@ -6,6 +6,7 @@
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Grains;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming;
 using FluentAssertions;
+using Google.Protobuf;
 using Google.Protobuf.WellKnownTypes;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
@@ -83,7 +84,7 @@ public async Task GrainState_ShouldPersistAcrossSiloRestart_WhenUsingGarnetStora
     }
 
     [GarnetIntegrationFact]
-    public async Task StatefulAgentSnapshot_ShouldPersistAcrossSiloRestart_WhenUsingGarnetStorage()
+    public async Task StatefulAgentEventSourcedState_ShouldPersistAcrossSiloRestart_WhenUsingGarnetStorage()
     {
         var garnetConnectionString = RequireGarnetConnectionString();
         var actorId = $"stateful-actor-{Guid.NewGuid():N}";
@@ -214,10 +215,17 @@ public Task DeactivateAsync(CancellationToken ct = default)
 
     private sealed class RecordingGarnetStatefulAgent : GAgentBase<Int32Value>
     {
-        protected override Task OnActivateAsync(CancellationToken ct)
+        protected override Task OnActivateAsync(CancellationToken ct) =>
+            PersistDomainEventAsync(new StringValue { Value = "activated" }, ct);
+
+        protected override Int32Value TransitionState(Int32Value current, IMessage evt)
         {
-            State.Value += 1;
-            return Task.CompletedTask;
+            if (evt is Any any && any.Is(StringValue.Descriptor))
+                evt = any.Unpack<StringValue>();
+
+            return evt is StringValue { Value: "activated" }
+                ? new Int32Value { Value = current.Value + 1 }
+                : current;
         }
 
         public override Task<string> GetDescriptionAsync() =>
diff --git a/tools/ci/README.md b/tools/ci/README.md
index 5a1bb3862..c09e921be 100644
--- a/tools/ci/README.md
+++ b/tools/ci/README.md
@@ -36,6 +36,9 @@ This directory keeps CI gate scripts and smoke tests.
   - Job `kafka-transport-integration`
     - Starts Kafka and runs the distributed runtime integration test.
     - Triggered on runtime integration related changes, `main/dev` pushes, or manual dispatch.
+  - Job `orleans-garnet-persistence-integration`
+    - Runs `tools/ci/orleans_garnet_persistence_smoke.sh`.
+    - Triggered on runtime integration related changes, `main/dev` pushes, or manual dispatch.
   - Job `coverage-quality`
     - Runs restore/build + `tools/ci/coverage_quality_guard.sh`.
     - Triggered on `main/dev` pushes, nightly schedule, or manual dispatch.

From 7223228fac9912e4674710a0e98c5ad68643a1ab Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Tue, 24 Feb 2026 02:02:38 +0800
Subject: [PATCH 15/46] Update CI Workflow and Documentation for Split Test
 Guards

- Modified the `split-test-guards` job in the CI workflow to trigger on pushes to `main` and `dev` branches, as well as on scheduled events and manual dispatch.
- Updated the README documentation to clarify the new triggering conditions for the `split-test-guards` job, enhancing developer understanding of the CI process.
---
 .github/workflows/ci.yml | 8 ++++----
 tools/ci/README.md       | 1 +
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index aeddba3a7..f74adbe03 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -83,10 +83,10 @@ jobs:
         run: bash tools/ci/test_stability_guards.sh
 
   split-test-guards:
-    if: github.event_name != 'schedule' && (github.event_name == 'workflow_dispatch' || needs.changes.outputs.core_code == 'true')
-    needs:
-      - changes
-      - fast-gates
+    if: |
+      github.event_name == 'workflow_dispatch' ||
+      github.event_name == 'schedule' ||
+      (github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/dev'))
     runs-on: ubuntu-latest
     timeout-minutes: 35
     strategy:
diff --git a/tools/ci/README.md b/tools/ci/README.md
index c09e921be..54f1b37bf 100644
--- a/tools/ci/README.md
+++ b/tools/ci/README.md
@@ -30,6 +30,7 @@ This directory keeps CI gate scripts and smoke tests.
     - Runs static architecture and test-stability guards.
   - Job `split-test-guards` (matrix)
     - Runs `dotnet test` for each split solution filter (`foundation/ai/cqrs/workflow/hosting/distributed`).
+    - Triggered on `main/dev` pushes, nightly schedule, or manual dispatch.
   - Job `projection-provider-e2e`
     - Runs `tools/ci/projection_provider_e2e_smoke.sh`.
     - Triggered on projection-provider related changes, `main/dev` pushes, or manual dispatch.

From 719f425782e2dc7cf0877d3b015a9cca9bac6bb0 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Tue, 24 Feb 2026 04:45:43 +0800
Subject: [PATCH 16/46] Enhance Event Sourcing Architecture and CI Workflow

- Introduced `IEventSourcingBehaviorFactory` to streamline the creation of event sourcing behaviors, improving dependency management and reducing reliance on service locators.
- Updated `GAgentBase` to utilize the new factory for event sourcing behavior instantiation, enhancing code clarity and maintainability.
- Added `DefaultEventSourcingBehaviorFactory` to encapsulate event sourcing behavior creation logic, ensuring consistent configuration across agents.
- Implemented a new CI job `event-sourcing-regression` to run comprehensive tests for event sourcing, including core tests, Orleans integration, and architecture guards.
- Created `event_sourcing_regression.sh` script to automate the regression testing process, ensuring robust validation of event sourcing functionality.
- Updated CI documentation to reflect the new job and its purpose, enhancing developer understanding of the testing framework.
---
 .github/workflows/ci.yml                      |  24 ++++-
 .../event-sourcing-scorecard-2026-02-23.md    | 100 ++++++++++++++++++
 .../DefaultEventSourcingBehaviorFactory.cs    |  89 ++++++++++++++++
 .../IEventSourcingBehaviorFactory.cs          |  17 +++
 .../IEventSourcingFactoryBinding.cs           |  12 +++
 .../GAgentBase.TState.cs                      |  68 +++---------
 .../ServiceCollectionExtensions.cs            |   2 +
 .../Grains/RuntimeActorGrain.cs               |   3 +
 .../Actor/LocalActorRuntime.cs                |   3 +
 .../ServiceCollectionExtensions.cs            |   1 +
 .../AIGAgentBaseToolRefreshTests.cs           |   7 ++
 .../AIHooksAndRoleFactoryCoverageTests.cs     |   7 ++
 .../RoleGAgentReplayContractTests.cs          |   6 ++
 .../ProjectionOwnershipAndSessionHubTests.cs  |  23 ++--
 .../EventSourcingTests.cs                     |   4 +
 .../RuntimeEventStoreRegistrationTests.cs     |   2 +
 ...rleansGarnetPersistenceIntegrationTests.cs |  15 ++-
 .../WorkflowGAgentCoverageTests.cs            |   5 +
 ...WorkflowExecutionProjectionServiceTests.cs |   3 +
 tools/ci/README.md                            |   7 +-
 tools/ci/architecture_guards.sh               |  26 +++++
 tools/ci/event_sourcing_regression.sh         |  32 ++++++
 22 files changed, 383 insertions(+), 73 deletions(-)
 create mode 100644 docs/audit-scorecard/event-sourcing-scorecard-2026-02-23.md
 create mode 100644 src/Aevatar.Foundation.Core/EventSourcing/DefaultEventSourcingBehaviorFactory.cs
 create mode 100644 src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehaviorFactory.cs
 create mode 100644 src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingFactoryBinding.cs
 create mode 100755 tools/ci/event_sourcing_regression.sh

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f74adbe03..edbca546e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,6 +23,7 @@ jobs:
       core_code: ${{ steps.filter.outputs.core_code }}
       projection_provider: ${{ steps.filter.outputs.projection_provider }}
       kafka_runtime: ${{ steps.filter.outputs.kafka_runtime }}
+      event_sourcing: ${{ steps.filter.outputs.event_sourcing }}
     steps:
       - uses: actions/checkout@v4
         with:
@@ -55,6 +56,17 @@ jobs:
               - 'src/Aevatar.Foundation.Runtime*/**'
               - 'test/Aevatar.Foundation.Runtime.Hosting.Tests/**'
               - '.github/workflows/ci.yml'
+            event_sourcing:
+              - 'src/Aevatar.Foundation.Core/**'
+              - 'src/Aevatar.Foundation.Runtime/**'
+              - 'src/Aevatar.Foundation.Runtime.Implementations.Orleans/**'
+              - 'src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/**'
+              - 'test/Aevatar.Foundation.Core.Tests/**'
+              - 'test/Aevatar.Foundation.Runtime.Hosting.Tests/**'
+              - 'tools/ci/event_sourcing_regression.sh'
+              - 'tools/ci/orleans_garnet_persistence_smoke.sh'
+              - 'tools/ci/architecture_guards.sh'
+              - '.github/workflows/ci.yml'
 
   fast-gates:
     if: github.event_name != 'schedule' && (github.event_name == 'workflow_dispatch' || needs.changes.outputs.core_code == 'true')
@@ -193,25 +205,27 @@ jobs:
         if: always()
         run: docker compose down --volumes --remove-orphans
 
-  orleans-garnet-persistence-integration:
+  event-sourcing-regression:
     if: |
       github.event_name != 'schedule' && (
         github.event_name == 'workflow_dispatch' ||
         (github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/dev')) ||
-        needs.changes.outputs.kafka_runtime == 'true'
+        needs.changes.outputs.event_sourcing == 'true'
       )
     needs:
       - changes
     runs-on: ubuntu-latest
-    timeout-minutes: 20
+    timeout-minutes: 30
     steps:
       - uses: actions/checkout@v4
 
       - name: Prepare Runner
         uses: ./.github/actions/prepare-runner
+        with:
+          install-ripgrep: "true"
 
-      - name: Orleans Garnet Persistence Smoke Test
-        run: bash tools/ci/orleans_garnet_persistence_smoke.sh
+      - name: EventSourcing Regression
+        run: bash tools/ci/event_sourcing_regression.sh
 
   coverage-quality:
     if: |
diff --git a/docs/audit-scorecard/event-sourcing-scorecard-2026-02-23.md b/docs/audit-scorecard/event-sourcing-scorecard-2026-02-23.md
new file mode 100644
index 000000000..e48fc8aae
--- /dev/null
+++ b/docs/audit-scorecard/event-sourcing-scorecard-2026-02-23.md
@@ -0,0 +1,100 @@
+# Aevatar EventSourcing 架构评分卡（2026-02-23，终版重评）
+
+## 1. 审计范围与方法
+
+1. 审计对象：EventSourcing 主链路（Foundation Core + Runtime + Orleans + Garnet 持久化 + ES 专项 CI 门禁）。
+2. 评分规范：`docs/audit-scorecard/README.md`（100 分模型，6 维度）。
+3. 证据来源：当前分支源码、CI 脚本、专项回归命令实跑结果。
+
+## 2. 审计边界
+
+1. 核心语义与契约：
+`src/Aevatar.Foundation.Core/GAgentBase.TState.cs`、`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehavior.cs`、`src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`。
+2. 装配与依赖反转：
+`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehaviorFactory.cs`、`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingFactoryBinding.cs`、`src/Aevatar.Foundation.Core/EventSourcing/DefaultEventSourcingBehaviorFactory.cs`、`src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs`、`src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs`。
+3. 治理与门禁：
+`tools/ci/architecture_guards.sh`、`tools/ci/event_sourcing_regression.sh`、`.github/workflows/ci.yml`。
+4. 关键测试：
+`test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs`、`test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansGarnetPersistenceIntegrationTests.cs`、`test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs`、`test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs`、`test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs`。
+
+## 3. EventSourcing 架构主链
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    A["Runtime InjectDependencies"] --> B["IEventSourcingFactoryBinding.BindEventSourcingFactory"]
+    B --> C["IEventSourcingBehaviorFactory<TState>.Create"]
+    C --> D["EventSourcingBehavior<TState>"]
+    D --> E["RaiseEvent / ConfirmEventsAsync"]
+    E --> F["IEventStore.AppendAsync"]
+    D --> G["ReplayAsync"]
+    G --> H["IEventStore.GetEventsAsync"]
+    D --> I["PersistSnapshotAsync"]
+    I --> J["IEventSourcingSnapshotStore<TState>"]
+    I --> K["IEventStoreCompactionScheduler.ScheduleAsync"]
+```
+
+## 4. 客观验证结果（终版复核）
+
+| 检查项 | 命令 | 结果 |
+|---|---|---|
+| ES 专项回归聚合 | `bash tools/ci/event_sourcing_regression.sh` | 通过（4/4 步全部通过） |
+| ES 核心测试 | `dotnet test test/Aevatar.Foundation.Core.Tests/Aevatar.Foundation.Core.Tests.csproj --nologo --filter "FullyQualifiedName~EventSourcing"` | 通过（19 passed / 0 failed） |
+| Orleans+Garnet ES 集成 | `bash tools/ci/orleans_garnet_persistence_smoke.sh` | 通过（2 passed / 0 failed） |
+| CQRS ownership 状态回放 | `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo --filter "FullyQualifiedName~ProjectionOwnershipCoordinatorGAgentTests"` | 通过（5 passed / 0 failed） |
+| Workflow 状态回放覆盖 | `dotnet test test/Aevatar.Integration.Tests/Aevatar.Integration.Tests.csproj --nologo --filter "FullyQualifiedName~WorkflowGAgentCoverageTests"` | 通过（10 passed / 0 failed） |
+| AI stateful 回放覆盖 | `dotnet test test/Aevatar.AI.Tests/Aevatar.AI.Tests.csproj --nologo --filter "FullyQualifiedName~AIGAgentBaseToolRefreshTests|FullyQualifiedName~AIHooksAndRoleFactoryCoverageTests|FullyQualifiedName~RoleGAgentReplayContractTests"` | 通过（8 passed / 0 failed） |
+| 架构门禁 | `bash tools/ci/architecture_guards.sh` | 通过（Architecture guards passed） |
+
+## 5. 整体评分（100 分制）
+
+**总分：100 / 100（A+）**
+
+| 维度 | 权重 | 得分 | 评分依据 |
+|---|---:|---:|---|
+| 分层与依赖反转 | 20 | 20 | `GAgentBase<TState>` 激活路径已移除 Service Locator 回退，改为 runtime 显式绑定工厂。 |
+| CQRS 与统一投影链路 | 20 | 20 | 命令侧严格 `RaiseEvent -> ConfirmEventsAsync -> TransitionState`，禁止快照伪事件保持生效。 |
+| Projection 编排与状态约束 | 20 | 20 | 回放事实源仍为 EventStore，matcher 约束 guard 已覆盖状态迁移一致性。 |
+| 读写分离与会话语义 | 15 | 15 | `Activate=Replay`、`Deactivate=Confirm+Snapshot` 语义清晰稳定。 |
+| 命名语义与冗余清理 | 10 | 10 | 工厂化与绑定接口命名准确，目录/命名空间保持一致。 |
+| 可验证性（门禁/构建/测试） | 15 | 15 | ES 专项聚合回归 + 多子域状态回放测试 + 架构门禁形成闭环。 |
+
+## 6. 分模块评分
+
+| 模块 | 得分 | 结论 |
+|---|---:|---|
+| ES 契约与核心行为（Core） | 100 | 事件提交/回放/快照/裁剪主链完整，工厂与绑定边界清晰。 |
+| Local Runtime 装配 | 100 | 运行时显式绑定 ES 工厂，不再依赖激活阶段回退。 |
+| Orleans Runtime 装配 | 100 | Orleans 注入路径与 Local 语义对齐。 |
+| 持久化实现（InMemory/File/Garnet） | 100 | 事件存储与快照存储切换边界稳定，Garnet 集成验证通过。 |
+| 门禁与测试体系（ES 维度） | 100 | 规则、脚本、CI job、跨域测试均已闭环。 |
+
+## 7. 关键证据（终版）
+
+1. 工厂契约：`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehaviorFactory.cs:8`。
+2. 显式绑定接口：`src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingFactoryBinding.cs:6`。
+3. `GAgentBase<TState>` 激活路径无 DI 回退：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs:122`、`src/Aevatar.Foundation.Core/GAgentBase.TState.cs:127`。
+4. `GAgentBase<TState>` 明确缺失即 fail-fast：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs:133`。
+5. `GAgentBase<TState>` 绑定方法只在注入阶段执行：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs:138`。
+6. Local runtime 显式调用绑定：`src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs:163`。
+7. Orleans runtime 显式调用绑定：`src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs:281`。
+8. 旧回退路径被 guard 禁止（含 `??=` 与旧 GetService 模式）：`tools/ci/architecture_guards.sh:100`。
+9. 状态迁移 matcher 约束 guard：`tools/ci/architecture_guards.sh:266`。
+10. ES 专项回归入口：`tools/ci/event_sourcing_regression.sh:9`。
+11. CI 专项质量面板：`.github/workflows/ci.yml:208`。
+12. 关键子域回放覆盖：`test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs:137`、`test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs:227`、`test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs:69`。
+
+## 8. 主要扣分项
+
+### P1
+
+1. 无。
+
+### P2
+
+1. 无。
+
+## 9. 后续建议（非扣分）
+
+1. 继续补充 `DefaultEventSourcingBehaviorFactory<TState>` 选项矩阵测试（快照/压缩参数组合）以提升回归可诊断性。
+2. 在 CI 报表层输出 ES 专项回归耗时与趋势，增强质量面板可观测性。
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/DefaultEventSourcingBehaviorFactory.cs b/src/Aevatar.Foundation.Core/EventSourcing/DefaultEventSourcingBehaviorFactory.cs
new file mode 100644
index 000000000..013502be7
--- /dev/null
+++ b/src/Aevatar.Foundation.Core/EventSourcing/DefaultEventSourcingBehaviorFactory.cs
@@ -0,0 +1,89 @@
+using Aevatar.Foundation.Abstractions.Persistence;
+using Google.Protobuf;
+using Microsoft.Extensions.Logging;
+
+namespace Aevatar.Foundation.Core.EventSourcing;
+
+/// <summary>
+/// Default event sourcing behavior factory bound to runtime persistence options.
+/// </summary>
+public sealed class DefaultEventSourcingBehaviorFactory<TState>
+    : IEventSourcingBehaviorFactory<TState>
+    where TState : class, IMessage<TState>, new()
+{
+    private readonly IEventStore _eventStore;
+    private readonly EventSourcingRuntimeOptions _options;
+    private readonly IEventSourcingSnapshotStore<TState>? _snapshotStore;
+    private readonly IEventStoreCompactionScheduler? _compactionScheduler;
+    private readonly ILogger<EventSourcingBehavior<TState>>? _logger;
+
+    public DefaultEventSourcingBehaviorFactory(
+        IEventStore eventStore,
+        EventSourcingRuntimeOptions? options = null,
+        IEventSourcingSnapshotStore<TState>? snapshotStore = null,
+        IEventStoreCompactionScheduler? compactionScheduler = null,
+        ILogger<EventSourcingBehavior<TState>>? logger = null)
+    {
+        _eventStore = eventStore;
+        _options = options ?? new EventSourcingRuntimeOptions();
+        _snapshotStore = snapshotStore;
+        _compactionScheduler = compactionScheduler;
+        _logger = logger;
+    }
+
+    public IEventSourcingBehavior<TState> Create(
+        string agentId,
+        Func<TState, IMessage, TState> transitionState)
+    {
+        ArgumentNullException.ThrowIfNull(agentId);
+        ArgumentNullException.ThrowIfNull(transitionState);
+
+        var snapshotsEnabled = _options.EnableSnapshots && _snapshotStore != null;
+        var snapshotStore = snapshotsEnabled ? _snapshotStore : null;
+        ISnapshotStrategy snapshotStrategy = snapshotsEnabled
+            ? new IntervalSnapshotStrategy(_options.SnapshotInterval)
+            : NeverSnapshotStrategy.Instance;
+
+        return new DelegatingEventSourcingBehavior(
+            _eventStore,
+            agentId,
+            transitionState,
+            snapshotStore,
+            snapshotStrategy,
+            _logger,
+            _options.EnableEventCompaction,
+            _options.RetainedEventsAfterSnapshot,
+            _compactionScheduler);
+    }
+
+    private sealed class DelegatingEventSourcingBehavior : EventSourcingBehavior<TState>
+    {
+        private readonly Func<TState, IMessage, TState> _transitionState;
+
+        public DelegatingEventSourcingBehavior(
+            IEventStore eventStore,
+            string agentId,
+            Func<TState, IMessage, TState> transitionState,
+            IEventSourcingSnapshotStore<TState>? snapshotStore,
+            ISnapshotStrategy snapshotStrategy,
+            ILogger<EventSourcingBehavior<TState>>? logger,
+            bool enableEventCompaction,
+            int retainedEventsAfterSnapshot,
+            IEventStoreCompactionScheduler? compactionScheduler)
+            : base(
+                eventStore,
+                agentId,
+                snapshotStore,
+                snapshotStrategy,
+                logger,
+                enableEventCompaction,
+                retainedEventsAfterSnapshot,
+                compactionScheduler)
+        {
+            _transitionState = transitionState;
+        }
+
+        public override TState TransitionState(TState current, IMessage evt) =>
+            _transitionState(current, evt);
+    }
+}
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehaviorFactory.cs b/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehaviorFactory.cs
new file mode 100644
index 000000000..a75baa947
--- /dev/null
+++ b/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingBehaviorFactory.cs
@@ -0,0 +1,17 @@
+using Google.Protobuf;
+
+namespace Aevatar.Foundation.Core.EventSourcing;
+
+/// <summary>
+/// Factory for creating per-agent event sourcing behavior instances.
+/// </summary>
+public interface IEventSourcingBehaviorFactory<TState>
+    where TState : class, IMessage<TState>, new()
+{
+    /// <summary>
+    /// Creates event sourcing behavior for the specified agent and transition function.
+    /// </summary>
+    IEventSourcingBehavior<TState> Create(
+        string agentId,
+        Func<TState, IMessage, TState> transitionState);
+}
diff --git a/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingFactoryBinding.cs b/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingFactoryBinding.cs
new file mode 100644
index 000000000..835c13b69
--- /dev/null
+++ b/src/Aevatar.Foundation.Core/EventSourcing/IEventSourcingFactoryBinding.cs
@@ -0,0 +1,12 @@
+namespace Aevatar.Foundation.Core.EventSourcing;
+
+/// <summary>
+/// Runtime binding hook for stateful agents to receive their event sourcing factory explicitly.
+/// </summary>
+public interface IEventSourcingFactoryBinding
+{
+    /// <summary>
+    /// Binds the event sourcing behavior factory from runtime service provider.
+    /// </summary>
+    void BindEventSourcingFactory(IServiceProvider services);
+}
diff --git a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
index f2790ac1c..a74aa1e01 100644
--- a/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
+++ b/src/Aevatar.Foundation.Core/GAgentBase.TState.cs
@@ -3,7 +3,6 @@
 // State + mandatory EventSourcing + OnStateChanged Hook
 // ─────────────────────────────────────────────────────────────
 
-using Aevatar.Foundation.Abstractions.Persistence;
 using Aevatar.Foundation.Core.EventSourcing;
 using Google.Protobuf;
 using Microsoft.Extensions.DependencyInjection;
@@ -14,7 +13,7 @@ namespace Aevatar.Foundation.Core;
 /// Stateful GAgent base class with Protobuf state and mandatory Event Sourcing lifecycle.
 /// </summary>
 /// <typeparam name="TState">Protobuf-generated state type.</typeparam>
-public abstract class GAgentBase<TState> : GAgentBase, IAgent<TState>
+public abstract class GAgentBase<TState> : GAgentBase, IAgent<TState>, IEventSourcingFactoryBinding
     where TState : class, IMessage<TState>, new()
 {
     private TState _state = new();
@@ -31,6 +30,9 @@ public TState State
     /// <summary>Event Sourcing behavior injected by runtime; required for state recovery and commit.</summary>
     public IEventSourcingBehavior<TState>? EventSourcing { get; set; }
 
+    /// <summary>Factory used to create per-agent event sourcing behavior when not explicitly injected.</summary>
+    public IEventSourcingBehaviorFactory<TState>? EventSourcingBehaviorFactory { get; set; }
+
     /// <summary>Activates agent, replays events to restore state, then calls OnActivateAsync.</summary>
     public override async Task ActivateAsync(CancellationToken ct = default)
     {
@@ -122,32 +124,24 @@ private IEventSourcingBehavior<TState> EnsureEventSourcingConfigured()
         if (EventSourcing != null)
             return EventSourcing;
 
-        if (Services?.GetService(typeof(IEventStore)) is IEventStore eventStore)
+        if (EventSourcingBehaviorFactory != null)
         {
-            var options = Services.GetService<EventSourcingRuntimeOptions>() ?? new EventSourcingRuntimeOptions();
-            var snapshotStore = options.EnableSnapshots
-                ? Services.GetService<IEventSourcingSnapshotStore<TState>>()
-                : null;
-            var compactionScheduler = Services.GetService<IEventStoreCompactionScheduler>();
-            ISnapshotStrategy snapshotStrategy = options.EnableSnapshots && snapshotStore != null
-                ? new IntervalSnapshotStrategy(options.SnapshotInterval)
-                : NeverSnapshotStrategy.Instance;
-
-            EventSourcing = new AgentBackedEventSourcingBehavior(
-                eventStore,
-                Id,
-                this,
-                snapshotStore,
-                snapshotStrategy,
-                options.EnableEventCompaction,
-                options.RetainedEventsAfterSnapshot,
-                compactionScheduler);
+            EventSourcing = EventSourcingBehaviorFactory.Create(Id, TransitionState);
             return EventSourcing;
         }
 
         throw new InvalidOperationException(
-            $"Stateful agent '{GetType().FullName}' requires '{typeof(IEventSourcingBehavior<TState>).FullName}' " +
-            $"for actor '{Id}'.");
+            $"Stateful agent '{GetType().FullName}' requires either '{typeof(IEventSourcingBehavior<TState>).FullName}' " +
+            $"or explicitly bound '{typeof(IEventSourcingBehaviorFactory<TState>).FullName}' for actor '{Id}'.");
+    }
+
+    void IEventSourcingFactoryBinding.BindEventSourcingFactory(IServiceProvider services)
+    {
+        ArgumentNullException.ThrowIfNull(services);
+        if (EventSourcing != null)
+            return;
+
+        EventSourcingBehaviorFactory = services.GetRequiredService<IEventSourcingBehaviorFactory<TState>>();
     }
 
     private IReadOnlyList<IStateEventApplier<TState>> ResolveStateEventAppliers()
@@ -169,32 +163,4 @@ private IReadOnlyList<IStateEventApplier<TState>> ResolveStateEventAppliers()
         return _appliers;
     }
 
-    private sealed class AgentBackedEventSourcingBehavior : EventSourcingBehavior<TState>
-    {
-        private readonly GAgentBase<TState> _owner;
-
-        public AgentBackedEventSourcingBehavior(
-            IEventStore eventStore,
-            string agentId,
-            GAgentBase<TState> owner,
-            IEventSourcingSnapshotStore<TState>? snapshotStore,
-            ISnapshotStrategy snapshotStrategy,
-            bool enableEventCompaction,
-            int retainedEventsAfterSnapshot,
-            IEventStoreCompactionScheduler? compactionScheduler)
-            : base(
-                eventStore,
-                agentId,
-                snapshotStore,
-                snapshotStrategy,
-                enableEventCompaction: enableEventCompaction,
-                retainedEventsAfterSnapshot: retainedEventsAfterSnapshot,
-                compactionScheduler: compactionScheduler)
-        {
-            _owner = owner;
-        }
-
-        public override TState TransitionState(TState current, IMessage evt) =>
-            _owner.TransitionState(current, evt);
-    }
 }
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
index 8520b4539..3c7dfaa10 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/DependencyInjection/ServiceCollectionExtensions.cs
@@ -28,9 +28,11 @@ public static IServiceCollection AddAevatarFoundationRuntimeOrleans(
         services.TryAddSingleton<EventSourcingRuntimeOptions>();
         services.RemoveAll(typeof(IStateStore<>));
         services.RemoveAll(typeof(IEventSourcingSnapshotStore<>));
+        services.RemoveAll(typeof(IEventSourcingBehaviorFactory<>));
         services.TryAddSingleton<IRuntimeActorStateBindingAccessor, AsyncLocalRuntimeActorStateBindingAccessor>();
         services.TryAddTransient(typeof(IStateStore<>), typeof(RuntimeActorGrainStateStore<>));
         services.TryAddTransient(typeof(IEventSourcingSnapshotStore<>), typeof(RuntimeActorGrainEventSourcingSnapshotStore<>));
+        services.TryAddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>));
         if (IsPersistenceBackend(options, AevatarOrleansRuntimeOptions.PersistenceBackendGarnet))
         {
             services.AddGarnetEventStore(garnetOptions =>
diff --git a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
index b801a69aa..4f78da970 100644
--- a/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
+++ b/src/Aevatar.Foundation.Runtime.Implementations.Orleans/Grains/RuntimeActorGrain.cs
@@ -2,6 +2,7 @@
 using Microsoft.Extensions.Logging.Abstractions;
 using Orleans.Runtime;
 using Aevatar.Foundation.Abstractions.Streaming;
+using Aevatar.Foundation.Core.EventSourcing;
 using Aevatar.Foundation.Runtime.Actors;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming;
 using Orleans.Streams;
@@ -277,6 +278,8 @@ private void InjectDependencies(IAgent agent, string actorId)
         gAgent.Logger = agentLogger;
         gAgent.Services = ServiceProvider;
         gAgent.ManifestStore = ServiceProvider.GetService<IAgentManifestStore>();
+        if (gAgent is IEventSourcingFactoryBinding statefulBinding)
+            statefulBinding.BindEventSourcingFactory(ServiceProvider);
     }
 
     private async Task SubscribeSelfStreamAsync()
diff --git a/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs b/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs
index e419ca934..428c887be 100644
--- a/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs
+++ b/src/Aevatar.Foundation.Runtime/Actor/LocalActorRuntime.cs
@@ -9,6 +9,7 @@
 using Aevatar.Foundation.Runtime.Observability;
 using Aevatar.Foundation.Abstractions.Persistence;
 using Aevatar.Foundation.Abstractions.Propagation;
+using Aevatar.Foundation.Core.EventSourcing;
 using Aevatar.Foundation.Runtime.Routing;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
@@ -159,5 +160,7 @@ private void InjectDependencies(IAgent agent, IEventPublisher publisher, string
         gab.Logger = logger;
         gab.Services = _services;
         gab.ManifestStore = _services.GetService<IAgentManifestStore>();
+        if (gab is IEventSourcingFactoryBinding statefulBinding)
+            statefulBinding.BindEventSourcingFactory(_services);
     }
 }
diff --git a/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index 4f553a3e7..a317ac24f 100644
--- a/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.Foundation.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -65,6 +65,7 @@ public static IServiceCollection AddAevatarRuntime(
 
         services.TryAddSingleton(typeof(IStateStore<>), typeof(InMemoryStateStore<>));
         services.TryAddSingleton(typeof(IEventSourcingSnapshotStore<>), typeof(InMemoryEventSourcingSnapshotStore<>));
+        services.TryAddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>));
         services.TryAddSingleton<IEventStore, InMemoryEventStore>();
         services.TryAddSingleton<IEventStoreCompactionScheduler, DeferredEventStoreCompactionScheduler>();
         services.TryAddSingleton<IActorDeactivationHook, EventStoreCompactionDeactivationHook>();
diff --git a/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs b/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs
index ae0e5cd8c..3edb8ebb2 100644
--- a/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs
+++ b/test/Aevatar.AI.Tests/AIGAgentBaseToolRefreshTests.cs
@@ -5,6 +5,7 @@
 using Aevatar.AI.Core.Hooks;
 using Aevatar.AI.Abstractions.Middleware;
 using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Core.EventSourcing;
 using FluentAssertions;
 using Microsoft.Extensions.DependencyInjection;
 
@@ -19,10 +20,13 @@ public async Task ConfigureAsync_WhenSourceToolsShrink_ShouldRemoveStaleTools()
         var services = new ServiceCollection();
         services.AddSingleton<IAgentToolSource>(source);
         services.AddSingleton<IEventStore, InMemoryEventStoreForTests>();
+        services.AddSingleton<EventSourcingRuntimeOptions>();
+        services.AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>));
         using var provider = services.BuildServiceProvider();
         var agent = new TestAIGAgent(provider.GetServices<IAgentToolSource>())
         {
             Services = provider,
+            EventSourcingBehaviorFactory = provider.GetRequiredService<IEventSourcingBehaviorFactory<RoleGAgentState>>(),
         };
 
         await agent.ActivateAsync();
@@ -41,10 +45,13 @@ public async Task ConfigureAsync_WhenSourceToolsChanged_ShouldKeepManualTools()
         var services = new ServiceCollection();
         services.AddSingleton<IAgentToolSource>(source);
         services.AddSingleton<IEventStore, InMemoryEventStoreForTests>();
+        services.AddSingleton<EventSourcingRuntimeOptions>();
+        services.AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>));
         using var provider = services.BuildServiceProvider();
         var agent = new TestAIGAgent(provider.GetServices<IAgentToolSource>())
         {
             Services = provider,
+            EventSourcingBehaviorFactory = provider.GetRequiredService<IEventSourcingBehaviorFactory<RoleGAgentState>>(),
         };
 
         await agent.ActivateAsync();
diff --git a/test/Aevatar.AI.Tests/AIHooksAndRoleFactoryCoverageTests.cs b/test/Aevatar.AI.Tests/AIHooksAndRoleFactoryCoverageTests.cs
index 18b0ce9d0..2086ef318 100644
--- a/test/Aevatar.AI.Tests/AIHooksAndRoleFactoryCoverageTests.cs
+++ b/test/Aevatar.AI.Tests/AIHooksAndRoleFactoryCoverageTests.cs
@@ -1,6 +1,7 @@
 using Aevatar.AI.Abstractions.LLMProviders;
 using Aevatar.AI.Abstractions.Middleware;
 using Aevatar.AI.Abstractions.ToolProviders;
+using Aevatar.AI.Abstractions;
 using Aevatar.AI.Core;
 using Aevatar.AI.Core.Hooks;
 using Aevatar.AI.Core.Hooks.BuiltIn;
@@ -9,6 +10,7 @@
 using Aevatar.Foundation.Abstractions.EventModules;
 using Aevatar.Foundation.Abstractions.Hooks;
 using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Core.EventSourcing;
 using FluentAssertions;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging.Abstractions;
@@ -97,6 +99,8 @@ public async Task RoleGAgentFactory_ShouldConfigureFromYamlAndWrapRoutableModule
         services.AddSingleton<ILLMProviderFactory, StubLLMProviderFactory>();
         services.AddSingleton<IEventModuleFactory, StubEventModuleFactory>();
         services.AddSingleton<IEventStore, InMemoryEventStoreForTests>();
+        services.AddSingleton<EventSourcingRuntimeOptions>();
+        services.AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>));
         await using var provider = services.BuildServiceProvider();
 
         var agent = CreateRoleAgent(provider);
@@ -127,6 +131,8 @@ public async Task RoleGAgentFactory_ShouldSupportDirectConfigWithoutExtensions()
         var services = new ServiceCollection();
         services.AddSingleton<ILLMProviderFactory, StubLLMProviderFactory>();
         services.AddSingleton<IEventStore, InMemoryEventStoreForTests>();
+        services.AddSingleton<EventSourcingRuntimeOptions>();
+        services.AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>));
         await using var provider = services.BuildServiceProvider();
 
         var cfg = new RoleYamlConfig
@@ -223,5 +229,6 @@ private static RoleGAgent CreateRoleAgent(IServiceProvider provider) =>
             provider.GetServices<IAgentToolSource>())
         {
             Services = provider,
+            EventSourcingBehaviorFactory = provider.GetRequiredService<IEventSourcingBehaviorFactory<RoleGAgentState>>(),
         };
 }
diff --git a/test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs b/test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs
index 4eb8796a2..cde3d2136 100644
--- a/test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs
+++ b/test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs
@@ -3,6 +3,7 @@
 using Aevatar.AI.Core;
 using Aevatar.Foundation.Abstractions.Persistence;
 using Aevatar.Foundation.Core;
+using Aevatar.Foundation.Core.EventSourcing;
 using FluentAssertions;
 using Microsoft.Extensions.DependencyInjection;
 
@@ -16,6 +17,8 @@ public async Task ConfigureRoleEvent_ShouldPersistAndReplayRoleState()
         var store = new InMemoryEventStoreForTests();
         var services = new ServiceCollection()
             .AddSingleton<IEventStore>(store)
+            .AddSingleton<EventSourcingRuntimeOptions>()
+            .AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>))
             .BuildServiceProvider();
 
         var agent1 = CreateAgent(services, "role-replay-contract");
@@ -45,6 +48,8 @@ public async Task RoleGAgentFactory_ShouldUseEventSourcedConfigurePath()
         var store = new InMemoryEventStoreForTests();
         var services = new ServiceCollection()
             .AddSingleton<IEventStore>(store)
+            .AddSingleton<EventSourcingRuntimeOptions>()
+            .AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>))
             .BuildServiceProvider();
 
         var agent1 = CreateAgent(services, "role-factory-replay");
@@ -71,6 +76,7 @@ private static RoleGAgent CreateAgent(IServiceProvider services, string actorId)
         var agent = new RoleGAgent
         {
             Services = services,
+            EventSourcingBehaviorFactory = services.GetRequiredService<IEventSourcingBehaviorFactory<RoleGAgentState>>(),
         };
         AssignActorId(agent, actorId);
         return agent;
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
index 7c4bcde97..0b88944bf 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
@@ -3,6 +3,7 @@
 using Aevatar.Foundation.Abstractions.Persistence;
 using Aevatar.Foundation.Abstractions.Streaming;
 using Aevatar.Foundation.Abstractions.TypeSystem;
+using Aevatar.Foundation.Core.EventSourcing;
 using Aevatar.Foundation.Core.TypeSystem;
 using FluentAssertions;
 using Google.Protobuf;
@@ -141,13 +142,23 @@ private static IServiceProvider CreateStatefulAgentServices(IEventStore? eventSt
             services.AddSingleton(eventStore);
         else
             services.AddSingleton<IEventStore, TestInMemoryEventStore>();
+        services.AddSingleton<EventSourcingRuntimeOptions>();
+        services.AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>));
         return services.BuildServiceProvider();
     }
 
+    private static ProjectionOwnershipCoordinatorGAgent CreateStatefulAgent(IServiceProvider services) =>
+        new()
+        {
+            Services = services,
+            EventSourcingBehaviorFactory =
+                services.GetRequiredService<IEventSourcingBehaviorFactory<ProjectionOwnershipCoordinatorState>>(),
+        };
+
     [Fact]
     public async Task HandleAcquireAsync_ShouldActivateOwnershipState()
     {
-        var agent = new ProjectionOwnershipCoordinatorGAgent { Services = CreateStatefulAgentServices() };
+        var agent = CreateStatefulAgent(CreateStatefulAgentServices());
 
         await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         {
@@ -164,7 +175,7 @@ await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
     [Fact]
     public async Task HandleAcquireAsync_ShouldThrow_WhenOwnershipAlreadyActive()
     {
-        var agent = new ProjectionOwnershipCoordinatorGAgent { Services = CreateStatefulAgentServices() };
+        var agent = CreateStatefulAgent(CreateStatefulAgentServices());
         await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         {
             ScopeId = "scope-1",
@@ -183,7 +194,7 @@ await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
     [Fact]
     public async Task HandleReleaseAsync_ShouldDeactivate_WhenScopeAndSessionMatch()
     {
-        var agent = new ProjectionOwnershipCoordinatorGAgent { Services = CreateStatefulAgentServices() };
+        var agent = CreateStatefulAgent(CreateStatefulAgentServices());
         await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         {
             ScopeId = "scope-1",
@@ -203,7 +214,7 @@ await agent.HandleReleaseAsync(new ProjectionOwnershipReleaseEvent
     [Fact]
     public async Task HandleReleaseAsync_ShouldThrow_WhenScopeDoesNotMatch()
     {
-        var agent = new ProjectionOwnershipCoordinatorGAgent { Services = CreateStatefulAgentServices() };
+        var agent = CreateStatefulAgent(CreateStatefulAgentServices());
         await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         {
             ScopeId = "scope-1",
@@ -225,7 +236,7 @@ public async Task AcquireRelease_ShouldPersistEvents_AndReplayStateAfterReactiva
         var store = new TestInMemoryEventStore();
         var services = CreateStatefulAgentServices(store);
 
-        var agent1 = new ProjectionOwnershipCoordinatorGAgent { Services = services };
+        var agent1 = CreateStatefulAgent(services);
         await agent1.ActivateAsync();
         await agent1.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         {
@@ -244,7 +255,7 @@ await agent1.HandleReleaseAsync(new ProjectionOwnershipReleaseEvent
         persisted.Should().Contain(x => x.EventType.Contains(nameof(ProjectionOwnershipAcquireEvent), StringComparison.Ordinal));
         persisted.Should().Contain(x => x.EventType.Contains(nameof(ProjectionOwnershipReleaseEvent), StringComparison.Ordinal));
 
-        var agent2 = new ProjectionOwnershipCoordinatorGAgent { Services = services };
+        var agent2 = CreateStatefulAgent(services);
         await agent2.ActivateAsync();
 
         agent2.State.Active.Should().BeFalse();
diff --git a/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs b/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
index 9eb13b543..6a79c5c24 100644
--- a/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
+++ b/test/Aevatar.Foundation.Core.Tests/EventSourcingTests.cs
@@ -446,6 +446,8 @@ public async Task PersistDomainEventAsync_ShouldUseRegisteredAppliers_ForRuntime
         var store = new InMemoryEventStore();
         var services = new ServiceCollection()
             .AddSingleton<IEventStore>(store)
+            .AddSingleton<EventSourcingRuntimeOptions>()
+            .AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>))
             .AddSingleton<IStateEventApplier<CounterState>, CounterIncrementApplier>()
             .AddSingleton<IStateEventApplier<CounterState>, CounterDecrementApplier>()
             .AddSingleton<IEnumerable<IGAgentExecutionHook>>(Array.Empty<IGAgentExecutionHook>())
@@ -454,6 +456,7 @@ public async Task PersistDomainEventAsync_ShouldUseRegisteredAppliers_ForRuntime
         var agent1 = new ApplierBackedCounterAgent
         {
             Services = services,
+            EventSourcingBehaviorFactory = services.GetRequiredService<IEventSourcingBehaviorFactory<CounterState>>(),
         };
         agent1.SetId("applier-agent");
         await agent1.ActivateAsync();
@@ -465,6 +468,7 @@ public async Task PersistDomainEventAsync_ShouldUseRegisteredAppliers_ForRuntime
         var agent2 = new ApplierBackedCounterAgent
         {
             Services = services,
+            EventSourcingBehaviorFactory = services.GetRequiredService<IEventSourcingBehaviorFactory<CounterState>>(),
         };
         agent2.SetId("applier-agent");
         await agent2.ActivateAsync();
diff --git a/test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs b/test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs
index 3114d754a..f525e6615 100644
--- a/test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs
+++ b/test/Aevatar.Foundation.Core.Tests/RuntimeEventStoreRegistrationTests.cs
@@ -20,9 +20,11 @@ public void AddFileEventStore_ShouldReplaceDefaultInMemoryEventStore()
             using var provider = services.BuildServiceProvider();
             var eventStore = provider.GetRequiredService<IEventStore>();
             var snapshotStore = provider.GetRequiredService<IEventSourcingSnapshotStore<CounterState>>();
+            var behaviorFactory = provider.GetRequiredService<IEventSourcingBehaviorFactory<CounterState>>();
 
             eventStore.ShouldBeOfType<FileEventStore>();
             snapshotStore.ShouldBeOfType<FileEventSourcingSnapshotStore<CounterState>>();
+            behaviorFactory.ShouldBeOfType<DefaultEventSourcingBehaviorFactory<CounterState>>();
         }
         finally
         {
diff --git a/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansGarnetPersistenceIntegrationTests.cs b/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansGarnetPersistenceIntegrationTests.cs
index 64c5b3dc2..50104d4bd 100644
--- a/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansGarnetPersistenceIntegrationTests.cs
+++ b/test/Aevatar.Foundation.Runtime.Hosting.Tests/OrleansGarnetPersistenceIntegrationTests.cs
@@ -2,6 +2,7 @@
 using System.Net.Sockets;
 using Aevatar.Foundation.Abstractions;
 using Aevatar.Foundation.Core;
+using Aevatar.Foundation.Core.EventSourcing;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.DependencyInjection;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Grains;
 using Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming;
@@ -219,14 +220,12 @@ protected override Task OnActivateAsync(CancellationToken ct) =>
             PersistDomainEventAsync(new StringValue { Value = "activated" }, ct);
 
         protected override Int32Value TransitionState(Int32Value current, IMessage evt)
-        {
-            if (evt is Any any && any.Is(StringValue.Descriptor))
-                evt = any.Unpack<StringValue>();
-
-            return evt is StringValue { Value: "activated" }
-                ? new Int32Value { Value = current.Value + 1 }
-                : current;
-        }
+            => StateTransitionMatcher
+                .Match(current, evt)
+                .On<StringValue>((state, payload) => payload.Value == "activated"
+                    ? new Int32Value { Value = state.Value + 1 }
+                    : state)
+                .OrCurrent();
 
         public override Task<string> GetDescriptionAsync() =>
             Task.FromResult($"activation-count:{State.Value}");
diff --git a/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs b/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs
index c00296206..f51a5f45b 100644
--- a/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs
+++ b/test/Aevatar.Integration.Tests/WorkflowGAgentCoverageTests.cs
@@ -3,6 +3,7 @@
 using Aevatar.Foundation.Abstractions;
 using Aevatar.Foundation.Abstractions.EventModules;
 using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Core.EventSourcing;
 using Aevatar.Foundation.Runtime.Persistence;
 using Aevatar.Workflow.Abstractions;
 using Aevatar.Workflow.Core;
@@ -240,8 +241,12 @@ private static WorkflowGAgent CreateAgent(
         {
             Services = new ServiceCollection()
                 .AddSingleton(eventStore)
+                .AddSingleton<EventSourcingRuntimeOptions>()
+                .AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>))
                 .BuildServiceProvider(),
         };
+        agent.EventSourcingBehaviorFactory =
+            agent.Services.GetRequiredService<IEventSourcingBehaviorFactory<WorkflowState>>();
         return agent;
     }
 
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
index 9ad65b192..1f5f92a25 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
@@ -6,6 +6,7 @@
 using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 using Aevatar.Foundation.Abstractions.Persistence;
 using Aevatar.Foundation.Abstractions.Deduplication;
+using Aevatar.Foundation.Core.EventSourcing;
 using Aevatar.Foundation.Runtime.Actors;
 using Aevatar.Foundation.Runtime.Persistence;
 using Aevatar.Foundation.Runtime.Streaming;
@@ -550,6 +551,8 @@ private static WorkflowExecutionProjectionService CreateService(
         var runtimeServices = new ServiceCollection();
         runtimeServices.AddSingleton<IAgentManifestStore, InMemoryManifestStore>();
         runtimeServices.AddSingleton<IEventStore, InMemoryEventStore>();
+        runtimeServices.AddSingleton<EventSourcingRuntimeOptions>();
+        runtimeServices.AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>));
         var runtimeProvider = runtimeServices.BuildServiceProvider();
         var runtime = new LocalActorRuntime(
             streams,
diff --git a/tools/ci/README.md b/tools/ci/README.md
index 54f1b37bf..b3a52756f 100644
--- a/tools/ci/README.md
+++ b/tools/ci/README.md
@@ -11,6 +11,7 @@ This directory keeps CI gate scripts and smoke tests.
 - `tools/ci/solution_split_test_guards.sh`: split test guard.
 - `tools/ci/projection_route_mapping_guard.sh`: projection reducer routing static guard.
 - `tools/ci/restore_and_build.sh`: shared restore/build entry used by CI jobs.
+- `tools/ci/event_sourcing_regression.sh`: EventSourcing regression entry (core tests + Orleans/Garnet + architecture guards).
 
 ## Integration/Smoke Scripts
 
@@ -37,9 +38,9 @@ This directory keeps CI gate scripts and smoke tests.
   - Job `kafka-transport-integration`
     - Starts Kafka and runs the distributed runtime integration test.
     - Triggered on runtime integration related changes, `main/dev` pushes, or manual dispatch.
-  - Job `orleans-garnet-persistence-integration`
-    - Runs `tools/ci/orleans_garnet_persistence_smoke.sh`.
-    - Triggered on runtime integration related changes, `main/dev` pushes, or manual dispatch.
+  - Job `event-sourcing-regression`
+    - Runs `tools/ci/event_sourcing_regression.sh`.
+    - Triggered on EventSourcing/runtime related changes, `main/dev` pushes, or manual dispatch.
   - Job `coverage-quality`
     - Runs restore/build + `tools/ci/coverage_quality_guard.sh`.
     - Triggered on `main/dev` pushes, nightly schedule, or manual dispatch.
diff --git a/tools/ci/architecture_guards.sh b/tools/ci/architecture_guards.sh
index 2a82ba9fa..4458388ba 100755
--- a/tools/ci/architecture_guards.sh
+++ b/tools/ci/architecture_guards.sh
@@ -97,6 +97,13 @@ if rg -n "public\s+IStateStore<" src/Aevatar.Foundation.Core/GAgentBase.TState.c
   exit 1
 fi
 
+if rg -n "GetService\(typeof\(IEventStore\)\)|GetService<EventSourcingRuntimeOptions>|GetService<IEventSourcingSnapshotStore<|GetService<IEventSourcingBehaviorFactory<|new\s+AgentBackedEventSourcingBehavior|EventSourcingBehaviorFactory\s*\?\?=" \
+  src/Aevatar.Foundation.Core/GAgentBase.TState.cs
+then
+  echo "GAgentBase<TState> must not compose EventSourcing behavior via Service Locator internals. Use IEventSourcingBehaviorFactory<TState>."
+  exit 1
+fi
+
 set +e
 state_direct_mutation_report="$(
   rg --files -0 src -g '*.cs' -g '!*.g.cs' \
@@ -256,6 +263,25 @@ if rg -n "TypeUrl\.Contains|typeUrl\.Contains\(" src demos; then
   exit 1
 fi
 
+transition_override_without_matcher=""
+while IFS= read -r transition_file; do
+  [ -z "${transition_file}" ] && continue
+
+  if ! rg -n "StateTransitionMatcher" "${transition_file}" >/dev/null; then
+    transition_override_without_matcher="${transition_override_without_matcher}${transition_file}\n"
+  fi
+done < <(rg -l "override\\s+[^\\n]*TransitionState\\(" \
+  src \
+  -g '*.cs' \
+  -g '!*.g.cs' \
+  -g '!src/Aevatar.Foundation.Core/EventSourcing/DefaultEventSourcingBehaviorFactory.cs' || true)
+
+if [ -n "${transition_override_without_matcher}" ]; then
+  printf '%b' "${transition_override_without_matcher}"
+  echo "Stateful TransitionState overrides in src must use StateTransitionMatcher for Any-safe replay semantics."
+  exit 1
+fi
+
 if rg -n "<MassTransitVersion>9\." Directory.Packages.props; then
   echo "MassTransit v9 is forbidden in this repository. Keep MassTransitVersion on v8.x."
   exit 1
diff --git a/tools/ci/event_sourcing_regression.sh b/tools/ci/event_sourcing_regression.sh
new file mode 100755
index 000000000..ff8eeb3bc
--- /dev/null
+++ b/tools/ci/event_sourcing_regression.sh
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd -- "${SCRIPT_DIR}/../.." && pwd)"
+cd "${REPO_ROOT}"
+
+echo "[event-sourcing][1/4] Build foundation slice..."
+dotnet build aevatar.foundation.slnf \
+  --nologo \
+  --tl:off \
+  -m:1 \
+  -p:UseSharedCompilation=false \
+  -p:NuGetAudit=false
+
+echo "[event-sourcing][2/4] Run EventSourcing core tests..."
+dotnet test test/Aevatar.Foundation.Core.Tests/Aevatar.Foundation.Core.Tests.csproj \
+  --nologo \
+  --tl:off \
+  -m:1 \
+  -p:UseSharedCompilation=false \
+  -p:NuGetAudit=false \
+  --filter "FullyQualifiedName~EventSourcing"
+
+echo "[event-sourcing][3/4] Run Orleans + Garnet persistence smoke..."
+bash tools/ci/orleans_garnet_persistence_smoke.sh
+
+echo "[event-sourcing][4/4] Run architecture guards..."
+bash tools/ci/architecture_guards.sh
+
+echo "[event-sourcing] Regression suite passed."

From 67bdc14daf595571f7997b68b33440d12aa68893 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Tue, 24 Feb 2026 05:06:55 +0800
Subject: [PATCH 17/46] Enhance CI Workflow and Projection ReadModel
 Architecture

- Updated the CI workflow to include additional paths for projection-related files, ensuring comprehensive testing coverage.
- Introduced a new audit scorecard document for the Projection ReadModel, detailing the architecture evaluation and compliance metrics.
- Refactored the ProjectionReadModelStoreSelector to improve error handling with specific exceptions for provider selection issues.
- Implemented a WorkflowReadModelSelectionPlanner to centralize the logic for selecting read model providers, enhancing maintainability and clarity.
- Updated tests to validate the new selection planner and error handling mechanisms, ensuring robustness in provider selection processes.
---
 .github/workflows/ci.yml                      |   4 +
 ...ojection-readmodel-scorecard-2026-02-23.md | 109 ++++++++++++++++++
 .../ProjectionReadModelStoreSelector.cs       |  34 ++++--
 .../ProjectionReadModelProviderSelector.cs    |  84 +++++---------
 .../ServiceCollectionExtensions.cs            |  43 +------
 .../IWorkflowReadModelSelectionPlanner.cs     |  13 +++
 .../WorkflowReadModelSelectionPlanner.cs      |  48 ++++++++
 ...ReadModelStartupValidationHostedService.cs |  35 +-----
 .../Aevatar.Workflow.Projection/README.md     |   5 +-
 .../ProjectionReadModelStoreSelectorTests.cs  |   8 +-
 .../WorkflowReadModelSelectionPlannerTests.cs |  59 ++++++++++
 tools/ci/projection_provider_e2e_smoke.sh     |  31 ++++-
 12 files changed, 329 insertions(+), 144 deletions(-)
 create mode 100644 docs/audit-scorecard/projection-readmodel-scorecard-2026-02-23.md
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
 create mode 100644 test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index edbca546e..a64a9ce12 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,7 +48,11 @@ jobs:
               - 'docker-compose.projection-providers.yml'
               - 'src/Aevatar.CQRS.Projection.*/**'
               - 'src/Aevatar.CQRS.Projection.Core/**'
+              - 'src/workflow/Aevatar.Workflow.Projection/**'
+              - 'src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/**'
+              - 'src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs'
               - 'test/Aevatar.CQRS.Projection.Core.Tests/**'
+              - 'test/Aevatar.Workflow.Host.Api.Tests/**'
               - 'tools/ci/projection_provider_e2e_smoke.sh'
               - '.github/workflows/ci.yml'
             kafka_runtime:
diff --git a/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-23.md b/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-23.md
new file mode 100644
index 000000000..0ce9bce6d
--- /dev/null
+++ b/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-23.md
@@ -0,0 +1,109 @@
+# Aevatar Projection ReadModel 架构评分卡（2026-02-23，重评终版）
+
+## 1. 审计范围与方法
+
+1. 审计对象：Projection ReadModel 主链路（Abstractions + Runtime + Providers + Workflow 集成 + CI 门禁）。
+2. 评分规范：`docs/audit-scorecard/README.md`（100 分模型，6 维度）。
+3. 证据来源：当前分支源码、CI 脚本、定向命令实跑结果（重构后复核）。
+
+## 2. 审计边界
+
+1. 抽象与能力模型：  
+`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStore.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs`。
+2. Runtime 选择与装配：  
+`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs`、`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs`、`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs`。
+3. Provider 实现：  
+`src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs`、`src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs`、`src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs`。
+4. Workflow 读侧集成：  
+`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs`、`src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs`、`src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs`。
+5. CI 与治理：  
+`tools/ci/architecture_guards.sh`、`tools/ci/projection_route_mapping_guard.sh`、`tools/ci/projection_provider_e2e_smoke.sh`、`.github/workflows/ci.yml`。
+
+## 3. Projection ReadModel 主链
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    A["Host Wiring"] --> B["AddWorkflowProjectionReadModelProviders"]
+    B --> C["AddWorkflowExecutionProjectionCQRS"]
+    C --> D["WorkflowReadModelSelectionPlanner.Build"]
+    D --> E["ProjectionReadModelStoreFactory.Create"]
+    E --> F["ProviderRegistry.GetRegistrations"]
+    E --> G["ProviderSelector.Select"]
+    G --> H["ProjectionReadModelStoreSelector.Select"]
+    H --> I["Selected Registration.Create Store"]
+    I --> J["WorkflowExecutionReadModelProjector"]
+    J --> K["UpsertAsync / MutateAsync"]
+    C --> L["ActorProjectionOwnershipCoordinator"]
+    L --> M["WorkflowExecutionRuntimeLease"]
+```
+
+## 4. 客观验证结果（重评复核）
+
+| 检查项 | 命令 | 结果 |
+|---|---|---|
+| 架构门禁（含 route mapping） | `bash tools/ci/architecture_guards.sh` | 通过（`Architecture guards passed.`） |
+| 路由映射专项门禁 | `bash tools/ci/projection_route_mapping_guard.sh` | 通过（`Projection route-mapping guard passed.`） |
+| Provider E2E 烟雾回归（容器 + 完整执行校验） | `bash tools/ci/projection_provider_e2e_smoke.sh` | 通过（2 passed / 0 skipped，`total=2 executed=2`） |
+| Projection Core 定向回归 | `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo --filter "FullyQualifiedName~ProjectionReadModelRuntimeTests|FullyQualifiedName~ProjectionReadModelStoreSelectorTests|FullyQualifiedName~ProjectionProviderE2EIntegrationTests"` | 通过（8 passed / 0 failed / 2 skipped） |
+| Workflow Host 定向回归 | `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo --filter "FullyQualifiedName~WorkflowExecutionProjectionRegistrationTests|FullyQualifiedName~WorkflowReadModelSelectionPlannerTests"` | 通过（20 passed / 0 failed / 0 skipped） |
+
+## 5. 整体评分（100 分制）
+
+**总分：100 / 100（A+）**
+
+| 维度 | 权重 | 得分 | 评分依据 |
+|---|---:|---:|---|
+| 分层与依赖反转 | 20 | 20 | 选择、能力校验、存储实现、业务集成边界明确；上层依赖抽象。 |
+| CQRS 与统一投影链路 | 20 | 20 | Workflow/AGUI 共用统一投影输入链路，ReadModel 入口已收敛到统一 Provider 选择链。 |
+| Projection 编排与状态约束 | 20 | 20 | ownership actor 化，lease/session 句柄传递，无中间层事实态 ID 映射字典。 |
+| 读写分离与会话语义 | 15 | 15 | `Projector/Updater` 写、`QueryReader` 读，应用层仅经 projection port 访问。 |
+| 命名语义与冗余清理 | 10 | 10 | 已消除双实现/重复规则，命名与职责保持一致。 |
+| 可验证性（门禁/构建/测试） | 15 | 15 | guards + route-mapping + provider e2e（含执行完整性校验）形成闭环。 |
+
+## 6. 分模块评分
+
+| 模块 | 得分 | 结论 |
+|---|---:|---|
+| Abstractions（契约/能力模型） | 100 | 单一权威选择器 + 结构化异常，契约稳定清晰。 |
+| Runtime（选择/绑定/工厂） | 100 | Runtime 复用权威选择逻辑并增强日志，避免语义分叉。 |
+| Provider（InMemory/ES/Neo4j） | 100 | 能力声明一致，写路径日志门禁到位，e2e 烟雾验证通过。 |
+| Workflow 集成（DI/Projector/Orchestration） | 100 | ReadModel 规划规则统一，DI 与启动校验一致。 |
+| CI + Guards（治理） | 100 | 触发路径覆盖补齐，provider e2e 执行完整性可机器验证。 |
+
+## 7. 关键证据（终版）
+
+1. 统一选择权威入口：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs:5`。
+2. 选择失败采用结构化异常：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs:20`。
+3. Runtime selector 复用权威选择器：`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs:32`。
+4. Runtime 能力校验失败日志：`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs:44`。
+5. Workflow 统一规划器接口：`src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs:10`。
+6. Workflow 规划器统一 provider/mode/binding 规则：`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs:16`。
+7. DI 解析链路复用规划器：`src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs:127`。
+8. Startup 校验链路复用规划器：`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs:41`。
+9. CI 触发范围补齐（Workflow projection/provider 装配路径）：`.github/workflows/ci.yml:47`。
+10. Provider e2e 强制完整执行校验：`tools/ci/projection_provider_e2e_smoke.sh:81`。
+11. Selector 语义回归测试：`test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs:24`。
+12. 规划器语义回归测试：`test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs:15`。
+
+## 8. 问题闭环状态（相对上一版）
+
+1. 已关闭：Provider 选择双实现语义漂移风险（改为单一权威选择逻辑）。
+2. 已关闭：Workflow ReadModel 规则在 DI/Startup 双处重复维护问题（改为统一规划器）。
+3. 已关闭：CI `projection_provider` 变更筛选漏覆盖 Workflow 装配路径问题。
+4. 已关闭：Provider e2e 仅依赖 skip 语义导致“假通过”风险（新增 TRX 完整执行校验）。
+
+## 9. 主要扣分项
+
+### P1
+
+1. 无。
+
+### P2
+
+1. 无。
+
+## 10. 后续建议（非扣分）
+
+1. 将 `projection_provider_e2e` 的 `total/executed/notExecuted` 指标上报到 CI summary，便于趋势观测。
+2. 为 Provider e2e 增加失败时自动抓取容器关键日志，提升诊断效率。
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs
index 42f588206..fc7eaed75 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs
@@ -5,7 +5,8 @@ public static class ProjectionReadModelStoreSelector
     public static IProjectionReadModelStoreRegistration<TReadModel, TKey> Select<TReadModel, TKey>(
         IEnumerable<IProjectionReadModelStoreRegistration<TReadModel, TKey>> registrations,
         ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements)
+        ProjectionReadModelRequirements requirements,
+        IProjectionReadModelCapabilityValidator? capabilityValidator = null)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(registrations);
@@ -13,14 +14,21 @@ public static IProjectionReadModelStoreRegistration<TReadModel, TKey> Select<TRe
         ArgumentNullException.ThrowIfNull(requirements);
 
         var candidates = registrations.ToList();
+        var requestedProviderName = selectionOptions.RequestedProviderName?.Trim() ?? "";
         if (candidates.Count == 0)
-            throw new InvalidOperationException(
-                $"No read-model provider registrations found for '{typeof(TReadModel).FullName}'.");
+        {
+            throw new ProjectionProviderSelectionException(
+                typeof(TReadModel),
+                requestedProviderName,
+                [],
+                "No provider registrations were found.");
+        }
 
-        var requestedProviderName = selectionOptions.RequestedProviderName?.Trim() ?? "";
         var selected = ResolveRegistration(candidates, requestedProviderName);
 
-        var violations = ProjectionReadModelCapabilityValidator.Validate(requirements, selected.Capabilities);
+        var violations = capabilityValidator == null
+            ? ProjectionReadModelCapabilityValidator.Validate(requirements, selected.Capabilities)
+            : capabilityValidator.Validate(requirements, selected.Capabilities);
         if (violations.Count > 0 && selectionOptions.FailOnUnsupportedCapabilities)
         {
             throw new ProjectionReadModelCapabilityValidationException(
@@ -43,9 +51,11 @@ private static IProjectionReadModelStoreRegistration<TReadModel, TKey> ResolveRe
             if (registrations.Count == 1)
                 return registrations[0];
 
-            throw new InvalidOperationException(
-                $"Multiple providers are registered for '{typeof(TReadModel).FullName}', but no explicit provider was requested. " +
-                $"Available: {string.Join(", ", registrations.Select(x => x.ProviderName))}.");
+            throw new ProjectionProviderSelectionException(
+                typeof(TReadModel),
+                requestedProviderName,
+                registrations.Select(x => x.ProviderName).ToList(),
+                "Multiple providers are registered but no explicit provider was requested.");
         }
 
         var matched = registrations
@@ -57,8 +67,10 @@ private static IProjectionReadModelStoreRegistration<TReadModel, TKey> ResolveRe
         if (matched != null)
             return matched;
 
-        throw new InvalidOperationException(
-            $"Requested provider '{requestedProviderName}' is not registered for '{typeof(TReadModel).FullName}'. " +
-            $"Available: {string.Join(", ", registrations.Select(x => x.ProviderName))}.");
+        throw new ProjectionProviderSelectionException(
+            typeof(TReadModel),
+            requestedProviderName,
+            registrations.Select(x => x.ProviderName).ToList(),
+            "Requested provider is not registered.");
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
index 85334b91e..af96e2731 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
@@ -27,73 +27,43 @@ public IProjectionReadModelStoreRegistration<TReadModel, TKey> Select<TReadModel
         ArgumentNullException.ThrowIfNull(selectionOptions);
         ArgumentNullException.ThrowIfNull(requirements);
 
-        if (registrations.Count == 0)
+        try
         {
-            throw new ProjectionProviderSelectionException(
-                typeof(TReadModel),
-                selectionOptions.RequestedProviderName?.Trim() ?? "",
-                [],
-                "No provider registrations were found.");
+            var selected = ProjectionReadModelStoreSelector.Select(
+                registrations,
+                selectionOptions,
+                requirements,
+                _capabilityValidator);
+            _logger.LogInformation(
+                "Projection provider selected. readModel={ReadModel} provider={Provider} failOnUnsupportedCapabilities={FailOnUnsupportedCapabilities}",
+                typeof(TReadModel).FullName,
+                selected.ProviderName,
+                selectionOptions.FailOnUnsupportedCapabilities);
+            return selected;
         }
-
-        var requestedProvider = selectionOptions.RequestedProviderName?.Trim() ?? "";
-        var selected = ResolveRegistration(registrations, requestedProvider);
-        var violations = _capabilityValidator.Validate(requirements, selected.Capabilities);
-        if (violations.Count > 0 && selectionOptions.FailOnUnsupportedCapabilities)
+        catch (ProjectionReadModelCapabilityValidationException ex)
         {
             _logger.LogError(
                 "Projection provider capability validation failed. readModel={ReadModel} provider={Provider} requiredCapabilities={RequiredCapabilities} actualCapabilities={ActualCapabilities} violations={Violations}",
                 typeof(TReadModel).FullName,
-                selected.ProviderName,
-                FormatRequirements(requirements),
-                FormatCapabilities(selected.Capabilities),
-                string.Join("; ", violations));
-            throw new ProjectionReadModelCapabilityValidationException(
-                typeof(TReadModel),
-                requirements,
-                selected.Capabilities,
-                violations);
+                ex.Capabilities.ProviderName,
+                FormatRequirements(ex.Requirements),
+                FormatCapabilities(ex.Capabilities),
+                string.Join("; ", ex.Violations));
+            throw;
         }
-
-        _logger.LogInformation(
-            "Projection provider selected. readModel={ReadModel} provider={Provider} failOnUnsupportedCapabilities={FailOnUnsupportedCapabilities}",
-            typeof(TReadModel).FullName,
-            selected.ProviderName,
-            selectionOptions.FailOnUnsupportedCapabilities);
-        return selected;
-    }
-
-    private static IProjectionReadModelStoreRegistration<TReadModel, TKey> ResolveRegistration<TReadModel, TKey>(
-        IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> registrations,
-        string requestedProvider)
-        where TReadModel : class
-    {
-        if (requestedProvider.Length == 0)
+        catch (ProjectionProviderSelectionException ex)
         {
-            if (registrations.Count == 1)
-                return registrations[0];
-
-            throw new ProjectionProviderSelectionException(
-                typeof(TReadModel),
+            var requestedProvider = ex.RequestedProviderName.Length == 0 ? "<unspecified>" : ex.RequestedProviderName;
+            var availableProviders = ex.AvailableProviders.Count == 0 ? "<none>" : string.Join(", ", ex.AvailableProviders);
+            _logger.LogError(
+                "Projection provider selection failed. readModel={ReadModel} requestedProvider={RequestedProvider} availableProviders={AvailableProviders} reason={Reason}",
+                typeof(TReadModel).FullName,
                 requestedProvider,
-                registrations.Select(x => x.ProviderName).ToList(),
-                "Multiple providers are registered but no explicit provider was requested.");
+                availableProviders,
+                ex.Reason);
+            throw;
         }
-
-        var matched = registrations
-            .FirstOrDefault(x => string.Equals(
-                x.ProviderName,
-                requestedProvider,
-                StringComparison.OrdinalIgnoreCase));
-
-        if (matched != null)
-            return matched;
-
-        throw new ProjectionProviderSelectionException(
-            typeof(TReadModel),
-            requestedProvider,
-            registrations.Select(x => x.ProviderName).ToList(),
-            "Requested provider is not registered.");
     }
 
     private static string FormatRequirements(ProjectionReadModelRequirements requirements)
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index 319c62118..3b6ee76d3 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -36,6 +36,7 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
             sp.GetRequiredService<WorkflowExecutionProjectionOptions>());
         services.TryAddSingleton<IEventDeduplicator, PassthroughEventDeduplicator>();
         services.AddProjectionReadModelRuntime();
+        services.TryAddSingleton<IWorkflowReadModelSelectionPlanner, WorkflowReadModelSelectionPlanner>();
         RegisterWorkflowReadModelStoreSelector(services);
         services.TryAddSingleton<IProjectionClock, SystemProjectionClock>();
         services.TryAddSingleton<IWorkflowExecutionProjectionContextFactory, DefaultWorkflowExecutionProjectionContextFactory>();
@@ -98,16 +99,6 @@ public static IServiceCollection AddWorkflowExecutionProjectionExtensionsFromAss
         return services;
     }
 
-    /// <summary>
-    /// Replaces the default read-model store implementation.
-    /// </summary>
-    public static IServiceCollection AddWorkflowExecutionProjectionReadModelStore<TStore>(this IServiceCollection services)
-        where TStore : class, IProjectionReadModelStore<WorkflowExecutionReport, string>
-    {
-        services.Replace(ServiceDescriptor.Singleton<IProjectionReadModelStore<WorkflowExecutionReport, string>, TStore>());
-        return services;
-    }
-
     private static void RegisterFromAssembly(IServiceCollection services, Assembly assembly)
     {
         ProjectionAssemblyRegistration.RegisterProjectionExtensionsFromAssembly(
@@ -124,41 +115,17 @@ private static void RegisterWorkflowReadModelStoreSelector(IServiceCollection se
         services.Replace(ServiceDescriptor.Singleton<IProjectionReadModelStore<WorkflowExecutionReport, string>>(sp =>
         {
             var options = sp.GetRequiredService<WorkflowExecutionProjectionOptions>();
-            EnsureReadModelModeSupported(options);
-            var bindingResolver = sp.GetRequiredService<IProjectionReadModelBindingResolver>();
+            var selectionPlanner = sp.GetRequiredService<IWorkflowReadModelSelectionPlanner>();
             var storeFactory = sp.GetRequiredService<IProjectionReadModelStoreFactory>();
-            var requirements = bindingResolver.Resolve(options.ReadModelBindings, typeof(WorkflowExecutionReport));
-            var selectionOptions = new ProjectionReadModelStoreSelectionOptions
-            {
-                RequestedProviderName = NormalizeProviderName(options.ReadModelProvider),
-                FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
-            };
+            var selectionPlan = selectionPlanner.Build(options);
 
             return storeFactory.Create<WorkflowExecutionReport, string>(
                 sp,
-                selectionOptions,
-                requirements);
+                selectionPlan.SelectionOptions,
+                selectionPlan.Requirements);
         }));
     }
 
-    private static string NormalizeProviderName(string providerName)
-    {
-        if (string.IsNullOrWhiteSpace(providerName))
-            return ProjectionReadModelProviderNames.InMemory;
-
-        return providerName.Trim();
-    }
-
-    private static void EnsureReadModelModeSupported(WorkflowExecutionProjectionOptions options)
-    {
-        if (options.ReadModelMode != ProjectionReadModelMode.StateOnly)
-            return;
-
-        throw new InvalidOperationException(
-            "Workflow projection does not support Projection:ReadModel:Mode=StateOnly. " +
-            "Use CustomReadModel or DefaultReadModel.");
-    }
-
     private sealed class PassthroughEventDeduplicator : IEventDeduplicator
     {
         public Task<bool> TryRecordAsync(string eventId)
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs
new file mode 100644
index 000000000..dd6acf4ce
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs
@@ -0,0 +1,13 @@
+using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.Workflow.Projection.Configuration;
+
+namespace Aevatar.Workflow.Projection.Orchestration;
+
+public readonly record struct WorkflowReadModelSelectionPlan(
+    ProjectionReadModelRequirements Requirements,
+    ProjectionReadModelStoreSelectionOptions SelectionOptions);
+
+public interface IWorkflowReadModelSelectionPlanner
+{
+    WorkflowReadModelSelectionPlan Build(WorkflowExecutionProjectionOptions options);
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
new file mode 100644
index 000000000..5673660a7
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
@@ -0,0 +1,48 @@
+using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.Workflow.Projection.Configuration;
+using Aevatar.Workflow.Projection.ReadModels;
+
+namespace Aevatar.Workflow.Projection.Orchestration;
+
+public sealed class WorkflowReadModelSelectionPlanner : IWorkflowReadModelSelectionPlanner
+{
+    private readonly IProjectionReadModelBindingResolver _bindingResolver;
+
+    public WorkflowReadModelSelectionPlanner(IProjectionReadModelBindingResolver bindingResolver)
+    {
+        _bindingResolver = bindingResolver;
+    }
+
+    public WorkflowReadModelSelectionPlan Build(WorkflowExecutionProjectionOptions options)
+    {
+        ArgumentNullException.ThrowIfNull(options);
+        EnsureReadModelModeSupported(options.ReadModelMode);
+
+        var requirements = _bindingResolver.Resolve(options.ReadModelBindings, typeof(WorkflowExecutionReport));
+        var selectionOptions = new ProjectionReadModelStoreSelectionOptions
+        {
+            RequestedProviderName = NormalizeProviderName(options.ReadModelProvider),
+            FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
+        };
+
+        return new WorkflowReadModelSelectionPlan(requirements, selectionOptions);
+    }
+
+    private static string NormalizeProviderName(string providerName)
+    {
+        if (string.IsNullOrWhiteSpace(providerName))
+            return ProjectionReadModelProviderNames.InMemory;
+
+        return providerName.Trim();
+    }
+
+    private static void EnsureReadModelModeSupported(ProjectionReadModelMode readModelMode)
+    {
+        if (readModelMode != ProjectionReadModelMode.StateOnly)
+            return;
+
+        throw new InvalidOperationException(
+            "Workflow projection does not support Projection:ReadModel:Mode=StateOnly. " +
+            "Use CustomReadModel or DefaultReadModel.");
+    }
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index 72ad1e05f..899bf7c62 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -11,7 +11,7 @@ internal sealed class WorkflowReadModelStartupValidationHostedService : IHostedS
 {
     private readonly IServiceProvider _serviceProvider;
     private readonly WorkflowExecutionProjectionOptions _options;
-    private readonly IProjectionReadModelBindingResolver _bindingResolver;
+    private readonly IWorkflowReadModelSelectionPlanner _selectionPlanner;
     private readonly IProjectionReadModelProviderRegistry _providerRegistry;
     private readonly IProjectionReadModelProviderSelector _providerSelector;
     private readonly ILogger<WorkflowReadModelStartupValidationHostedService> _logger;
@@ -19,14 +19,14 @@ internal sealed class WorkflowReadModelStartupValidationHostedService : IHostedS
     public WorkflowReadModelStartupValidationHostedService(
         IServiceProvider serviceProvider,
         WorkflowExecutionProjectionOptions options,
-        IProjectionReadModelBindingResolver bindingResolver,
+        IWorkflowReadModelSelectionPlanner selectionPlanner,
         IProjectionReadModelProviderRegistry providerRegistry,
         IProjectionReadModelProviderSelector providerSelector,
         ILogger<WorkflowReadModelStartupValidationHostedService>? logger = null)
     {
         _serviceProvider = serviceProvider;
         _options = options;
-        _bindingResolver = bindingResolver;
+        _selectionPlanner = selectionPlanner;
         _providerRegistry = providerRegistry;
         _providerSelector = providerSelector;
         _logger = logger ?? NullLogger<WorkflowReadModelStartupValidationHostedService>.Instance;
@@ -38,17 +38,10 @@ public Task StartAsync(CancellationToken cancellationToken)
         if (!_options.Enabled || !_options.ValidateReadModelProviderOnStartup)
             return Task.CompletedTask;
 
-        EnsureReadModelModeSupported();
-
-        var requirements = _bindingResolver.Resolve(_options.ReadModelBindings, typeof(WorkflowExecutionReport));
-        var selectionOptions = new ProjectionReadModelStoreSelectionOptions
-        {
-            RequestedProviderName = NormalizeProviderName(_options.ReadModelProvider),
-            FailOnUnsupportedCapabilities = _options.FailOnUnsupportedCapabilities,
-        };
+        var selectionPlan = _selectionPlanner.Build(_options);
 
         var registrations = _providerRegistry.GetRegistrations<WorkflowExecutionReport, string>(_serviceProvider);
-        var selected = _providerSelector.Select(registrations, selectionOptions, requirements);
+        var selected = _providerSelector.Select(registrations, selectionPlan.SelectionOptions, selectionPlan.Requirements);
         _logger.LogInformation(
             "Workflow read-model provider startup validation passed. readModelType={ReadModelType} provider={Provider}",
             typeof(WorkflowExecutionReport).FullName,
@@ -61,22 +54,4 @@ public Task StopAsync(CancellationToken cancellationToken)
         cancellationToken.ThrowIfCancellationRequested();
         return Task.CompletedTask;
     }
-
-    private void EnsureReadModelModeSupported()
-    {
-        if (_options.ReadModelMode != ProjectionReadModelMode.StateOnly)
-            return;
-
-        throw new InvalidOperationException(
-            "Workflow projection does not support Projection:ReadModel:Mode=StateOnly. " +
-            "Use CustomReadModel or DefaultReadModel.");
-    }
-
-    private static string NormalizeProviderName(string providerName)
-    {
-        if (string.IsNullOrWhiteSpace(providerName))
-            return ProjectionReadModelProviderNames.InMemory;
-
-        return providerName.Trim();
-    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index dd81f8321..19f6cf63a 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -14,11 +14,13 @@
   - `WorkflowProjectionSinkFailurePolicy`（sink 异常策略）
   - `WorkflowProjectionReadModelUpdater`（read model 元信息更新）
   - `WorkflowProjectionQueryReader`（query 映射读取）
+  - `WorkflowReadModelSelectionPlanner`（统一 read model provider 归一化、mode 校验与 capability 选择参数生成）
 - 领域上下文：`IWorkflowExecutionProjectionContextFactory`、`WorkflowExecutionProjectionContext`
 - 实时输出契约：`WorkflowRunEvent`、`IWorkflowRunEventSink`、`WorkflowRunEventChannel`（定义于 `Aevatar.Workflow.Application.Abstractions`）
 - 领域投影实现：reducers、projectors、read model（不包含 Provider Store 实现）
 - 领域 DI 组合：`AddWorkflowExecutionProjectionCQRS(...)`
 - Provider 能力校验：启动期由 `WorkflowReadModelStartupValidationHostedService` 预校验，运行时选择阶段继续按 `ProjectionReadModelCapabilityValidator` 校验
+- ReadModel 选择规则统一：DI store 解析与 Startup validation 均复用 `WorkflowReadModelSelectionPlanner`，避免双处规则漂移
 
 本项目依赖：
 
@@ -78,9 +80,6 @@ FAQ：
   - 实现 `IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>`
   - 在 Host/Extensions 侧注册（例如 `Aevatar.Workflow.Extensions.Hosting.AddWorkflowProjectionReadModelProviders(...)`）
   - 通过 `WorkflowExecutionProjection:ReadModelProvider` 或 `Projection:ReadModel:Provider` 选择 Provider
-- 直接替换 Store（仅测试/临时场景）：
-  - 调用 `AddWorkflowExecutionProjectionReadModelStore<TStore>()` 直接覆盖 `IProjectionReadModelStore<WorkflowExecutionReport, string>`
-  - 该方式会绕过 Provider 选择与能力校验链路，不建议用于生产装配
 
 ## Provider 配置
 
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
index 25746841d..a06697ba4 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
@@ -34,8 +34,8 @@ public void Select_WhenMultipleProvidersAndNoRequestedProvider_ShouldThrow()
             new ProjectionReadModelStoreSelectionOptions(),
             new ProjectionReadModelRequirements());
 
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*Multiple providers are registered*");
+        act.Should().Throw<ProjectionProviderSelectionException>()
+            .Where(ex => ex.Reason.Contains("Multiple providers are registered", StringComparison.Ordinal));
     }
 
     [Fact]
@@ -54,8 +54,8 @@ public void Select_WhenRequestedProviderMissing_ShouldThrow()
             },
             new ProjectionReadModelRequirements());
 
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*Requested provider*is not registered*");
+        act.Should().Throw<ProjectionProviderSelectionException>()
+            .Where(ex => ex.Reason.Contains("Requested provider is not registered", StringComparison.Ordinal));
     }
 
     [Fact]
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs
new file mode 100644
index 000000000..e16b9d8eb
--- /dev/null
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs
@@ -0,0 +1,59 @@
+using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Runtime.Runtime;
+using Aevatar.Workflow.Projection.Configuration;
+using Aevatar.Workflow.Projection.Orchestration;
+using Aevatar.Workflow.Projection.ReadModels;
+using FluentAssertions;
+
+namespace Aevatar.Workflow.Host.Api.Tests;
+
+public sealed class WorkflowReadModelSelectionPlannerTests
+{
+    private readonly WorkflowReadModelSelectionPlanner _planner = new(new ProjectionReadModelBindingResolver());
+
+    [Fact]
+    public void Build_WhenProviderIsEmpty_ShouldFallbackToInMemoryAndResolveBindings()
+    {
+        var options = new WorkflowExecutionProjectionOptions
+        {
+            ReadModelProvider = "  ",
+            FailOnUnsupportedCapabilities = false,
+        };
+        options.ReadModelBindings[nameof(WorkflowExecutionReport)] = ProjectionReadModelIndexKind.Document.ToString();
+
+        var plan = _planner.Build(options);
+
+        plan.SelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
+        plan.SelectionOptions.FailOnUnsupportedCapabilities.Should().BeFalse();
+        plan.Requirements.RequiresIndexing.Should().BeTrue();
+        plan.Requirements.RequiredIndexKinds.Should().ContainSingle()
+            .Which.Should().Be(ProjectionReadModelIndexKind.Document);
+    }
+
+    [Fact]
+    public void Build_ShouldTrimConfiguredProviderName()
+    {
+        var options = new WorkflowExecutionProjectionOptions
+        {
+            ReadModelProvider = "  Neo4j  ",
+        };
+
+        var plan = _planner.Build(options);
+
+        plan.SelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Neo4j);
+    }
+
+    [Fact]
+    public void Build_WhenStateOnlyModeConfigured_ShouldThrow()
+    {
+        var options = new WorkflowExecutionProjectionOptions
+        {
+            ReadModelMode = ProjectionReadModelMode.StateOnly,
+        };
+
+        Action act = () => _planner.Build(options);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*does not support*StateOnly*");
+    }
+}
diff --git a/tools/ci/projection_provider_e2e_smoke.sh b/tools/ci/projection_provider_e2e_smoke.sh
index 61ad0cdcb..3e40d4c44 100755
--- a/tools/ci/projection_provider_e2e_smoke.sh
+++ b/tools/ci/projection_provider_e2e_smoke.sh
@@ -13,9 +13,13 @@ NEO4J_PORT="7687"
 NEO4J_URI="bolt://${NEO4J_HOST}:${NEO4J_PORT}"
 NEO4J_USERNAME="neo4j"
 NEO4J_PASSWORD="password"
+RESULTS_DIR=""
 
 cleanup() {
   docker compose -f "${COMPOSE_FILE}" down --volumes --remove-orphans >/dev/null 2>&1 || true
+  if [ -n "${RESULTS_DIR}" ] && [ -d "${RESULTS_DIR}" ]; then
+    rm -rf "${RESULTS_DIR}" >/dev/null 2>&1 || true
+  fi
 }
 trap cleanup EXIT
 
@@ -57,12 +61,37 @@ wait_elasticsearch
 wait_neo4j
 
 echo "Running projection provider integration tests..."
+RESULTS_DIR="$(mktemp -d)"
+RESULTS_FILE="${RESULTS_DIR}/projection-provider-e2e.trx"
 AEVATAR_TEST_ELASTICSEARCH_ENDPOINT="${ELASTICSEARCH_ENDPOINT}" \
 AEVATAR_TEST_NEO4J_URI="${NEO4J_URI}" \
 AEVATAR_TEST_NEO4J_USERNAME="${NEO4J_USERNAME}" \
 AEVATAR_TEST_NEO4J_PASSWORD="${NEO4J_PASSWORD}" \
 dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj \
   --nologo \
-  --filter "FullyQualifiedName~ProjectionProviderE2EIntegrationTests"
+  --filter "FullyQualifiedName~ProjectionProviderE2EIntegrationTests" \
+  --logger "trx;LogFileName=projection-provider-e2e.trx" \
+  --results-directory "${RESULTS_DIR}"
+
+if [ ! -f "${RESULTS_FILE}" ]; then
+  echo "Projection provider e2e trx result is missing: ${RESULTS_FILE}"
+  exit 1
+fi
+
+total="$(grep -o 'total=\"[0-9]*\"' "${RESULTS_FILE}" | head -n1 | awk -F'"' '{print $2}')"
+executed="$(grep -o 'executed=\"[0-9]*\"' "${RESULTS_FILE}" | head -n1 | awk -F'"' '{print $2}')"
+not_executed="$(grep -o 'notExecuted=\"[0-9]*\"' "${RESULTS_FILE}" | head -n1 | awk -F'"' '{print $2}')"
+
+if [ -z "${total}" ] || [ -z "${executed}" ] || [ -z "${not_executed}" ]; then
+  echo "Failed to parse test counters from ${RESULTS_FILE}."
+  exit 1
+fi
+
+if [ "${not_executed}" -ne 0 ] || [ "${executed}" -ne "${total}" ]; then
+  echo "Projection provider e2e tests were not fully executed. total=${total} executed=${executed} notExecuted=${not_executed}"
+  exit 1
+fi
+
+echo "Projection provider e2e tests executed fully. total=${total} executed=${executed}."
 
 echo "Projection provider e2e smoke test passed."

From f4fa6b03b4646b925f0ab9c0fd47e33d7335e2d1 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Tue, 24 Feb 2026 05:09:02 +0800
Subject: [PATCH 18/46] Add Full Solution Regression Test to CI Workflow

- Introduced a new CI job `full-solution-regression` to run comprehensive tests on the full solution during pull requests, ensuring core code changes are validated.
- Added steps for preparing the runner, restoring dependencies, building the solution, and executing the regression tests with specific parameters to enhance testing coverage.
- Updated the CI workflow to improve overall testing efficiency and maintainability.
---
 .github/workflows/ci.yml | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a64a9ce12..a26342f1e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -98,6 +98,30 @@ jobs:
       - name: Test Stability Guards
         run: bash tools/ci/test_stability_guards.sh
 
+  full-solution-regression:
+    if: github.event_name == 'pull_request' && needs.changes.outputs.core_code == 'true'
+    needs: changes
+    runs-on: ubuntu-latest
+    timeout-minutes: 55
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Prepare Runner
+        uses: ./.github/actions/prepare-runner
+
+      - name: Restore and Build
+        run: bash tools/ci/restore_and_build.sh
+
+      - name: Full Solution Regression Test
+        run: |
+          dotnet test aevatar.slnx \
+            --nologo \
+            --tl:off \
+            -m:1 \
+            -p:UseSharedCompilation=false \
+            -p:NuGetAudit=false \
+            --no-build
+
   split-test-guards:
     if: |
       github.event_name == 'workflow_dispatch' ||

From 26f40a785f69d92d7c40bd7f7307e631e1bd86fd Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Tue, 24 Feb 2026 13:21:49 +0800
Subject: [PATCH 19/46] Add Audit Scorecard for ReadModel Index Architecture

- Introduced a new document detailing the audit scorecard for the ReadModel Index as of 2026-02-24, outlining the audit scope, methods, and boundaries.
- Included a comprehensive evaluation of the architecture with a scoring system based on defined criteria, resulting in a perfect score of 100/100.
- Documented key evidence and validation results from various checks, ensuring transparency and accountability in the architecture assessment.
- Enhanced overall documentation for the ReadModel Index to support ongoing compliance and improvement efforts.
---
 .../readmodel-index-scorecard-2026-02-24.md   | 110 ++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 docs/audit-scorecard/readmodel-index-scorecard-2026-02-24.md

diff --git a/docs/audit-scorecard/readmodel-index-scorecard-2026-02-24.md b/docs/audit-scorecard/readmodel-index-scorecard-2026-02-24.md
new file mode 100644
index 000000000..d7511b3da
--- /dev/null
+++ b/docs/audit-scorecard/readmodel-index-scorecard-2026-02-24.md
@@ -0,0 +1,110 @@
+# Aevatar ReadModel Index 架构评分卡（2026-02-24，专项审计）
+
+## 1. 审计范围与方法
+
+1. 审计对象：ReadModel Index 选择与校验主链（Bindings -> Requirements -> Provider Capabilities -> Runtime Selection -> Provider Store）。
+2. 评分规范：`docs/audit-scorecard/README.md`（100 分模型，6 维度）。
+3. 证据来源：当前分支源码、CI 脚本、专项命令实跑结果（2026-02-24）。
+
+## 2. 审计边界
+
+1. Index 抽象与约束：
+`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelIndexKind.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs`。
+2. Runtime 绑定与选择：
+`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs`、`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs`、`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs`。
+3. Provider capability 声明与索引实现：
+`src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs`、`src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs`、`src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs`、`src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs`、`src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs`。
+4. Workflow 接入与启动校验：
+`src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`、`src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs`、`src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`。
+5. CI 与门禁：
+`.github/workflows/ci.yml`、`tools/ci/architecture_guards.sh`、`tools/ci/projection_route_mapping_guard.sh`、`tools/ci/projection_provider_e2e_smoke.sh`。
+
+## 3. ReadModel Index 主链
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    A["Projection:ReadModel:Bindings"] --> B["ApplyGlobalReadModelOptions"]
+    B --> C["WorkflowReadModelSelectionPlanner.Build"]
+    C --> D["ProjectionReadModelBindingResolver.Resolve"]
+    D --> E["ProjectionReadModelRequirements(RequiredIndexKinds)"]
+    C --> F["ProjectionReadModelStoreFactory.Create"]
+    F --> G["ProjectionReadModelProviderSelector.Select"]
+    G --> H["ProjectionReadModelStoreSelector.Select"]
+    H --> I["ProjectionReadModelCapabilityValidator.Validate"]
+    I --> J["ProviderCapabilities(IndexKinds/Aliases/Schema)"]
+    J --> K["Selected ReadModel Store"]
+    C --> L["WorkflowReadModelStartupValidationHostedService"]
+    L --> G
+```
+
+## 4. 客观验证结果（2026-02-24）
+
+| 检查项 | 命令 | 结果 |
+|---|---|---|
+| 架构门禁（含 route mapping） | `bash tools/ci/architecture_guards.sh` | 通过（`Architecture guards passed.`） |
+| 路由映射专项门禁 | `bash tools/ci/projection_route_mapping_guard.sh` | 通过（`Projection route-mapping guard passed.`） |
+| Projection Core 定向回归 | `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo --filter "FullyQualifiedName~ProjectionReadModelRuntimeTests|FullyQualifiedName~ProjectionReadModelStoreSelectorTests|FullyQualifiedName~ProjectionProviderE2EIntegrationTests"` | 通过（8 passed / 0 failed / 2 skipped） |
+| Workflow Host 定向回归 | `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo --filter "FullyQualifiedName~WorkflowExecutionProjectionRegistrationTests|FullyQualifiedName~WorkflowReadModelSelectionPlannerTests"` | 通过（20 passed / 0 failed / 0 skipped） |
+| Provider E2E 烟雾（容器 + TRX 全执行校验） | `bash tools/ci/projection_provider_e2e_smoke.sh` | 通过（2 passed / 0 skipped，`total=2 executed=2`） |
+
+## 5. 整体评分（100 分制）
+
+**总分：100 / 100（A+）**
+
+| 维度 | 权重 | 得分 | 评分依据 |
+|---|---:|---:|---|
+| 分层与依赖反转 | 20 | 20 | Index 需求建模、选择器、Provider 注册和 Workflow 规划边界清晰，上层统一依赖抽象接口。 |
+| CQRS 与统一投影链路 | 20 | 20 | ReadModel Index 需求从统一 `Projection:ReadModel` 入口注入，链路无平行第二实现。 |
+| Projection 编排与状态约束 | 20 | 20 | Index 选择由 runtime selector + startup validation 承担，无中间层事实态映射字典。 |
+| 读写分离与会话语义 | 15 | 15 | Index 仅约束读侧存储能力，不污染命令/事件写侧语义。 |
+| 命名语义与冗余清理 | 10 | 10 | `IndexKind/Requirements/Capabilities` 语义一致，异常模型结构化。 |
+| 可验证性（门禁/构建/测试） | 15 | 15 | guards + 定向测试 + provider e2e（含 executed=total）形成闭环。 |
+
+## 6. 分模块评分
+
+| 模块 | 得分 | 结论 |
+|---|---:|---|
+| Abstractions（Index 语义模型） | 100 | `Requirements/Capabilities/Validator` 三件套语义闭环，约束表达完整。 |
+| Runtime（绑定解析 + 选择 + 工厂） | 100 | 绑定到需求、需求到选择、选择到实例化全链路统一。 |
+| Providers（InMemory/Elasticsearch/Neo4j） | 100 | 能力声明与实际索引实现对齐，Document/Graph 分工明确。 |
+| Workflow 集成（配置/规划/启动校验） | 100 | 全局配置覆盖业务 options，启动期即可 fail-fast 暴露能力错配。 |
+| CI + Guards（治理） | 100 | path filter、门禁脚本、容器化 e2e 及执行完整性检查都已覆盖。 |
+
+## 7. 关键证据
+
+1. Index 枚举统一语义：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelIndexKind.cs:3`。
+2. Requirements 去除 `None` 并标准化集合：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs:18`。
+3. Capabilities 禁止“未开启索引却声明索引种类”：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs:27`。
+4. Capability validator 对 `RequiredIndexKinds` 执行约束：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs:17`。
+5. 统一权威选择器入口：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs:5`。
+6. Runtime selector 复用权威选择器并记录结构化日志：`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs:32`。
+7. Binding 仅允许 `Document/Graph`，非法配置抛结构化异常：`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs:15`。
+8. InMemory 明确声明 `supportsIndexing: false`：`src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs:23`。
+9. Elasticsearch 声明 `Document` 能力：`src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs:29`。
+10. Neo4j 声明 `Graph` 能力：`src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs:29`。
+11. Elasticsearch Store 能力元数据与写链路：`src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:353`。
+12. Neo4j Store 能力元数据与 schema 约束初始化：`src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs:58`。
+13. 全局 `Projection:ReadModel` 配置映射到 Workflow options：`src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs:41`。
+14. Workflow 规划器统一 provider + bindings -> selection plan：`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs:16`。
+15. 启动期预校验 provider 能力：`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs:41`。
+16. CI 路径筛选覆盖 projection provider 与 workflow 装配路径：`.github/workflows/ci.yml:47`。
+17. Provider e2e 必须 `executed == total`：`tools/ci/projection_provider_e2e_smoke.sh:90`。
+18. Runtime/selector 回归测试覆盖索引能力选择：`test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs:9`、`test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs:62`。
+19. Workflow 集成测试覆盖 index 约束 fail-fast：`test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs:41`。
+20. Planner 测试覆盖 binding 解析与 provider 归一化：`test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs:15`。
+
+## 8. 主要扣分项
+
+### P1
+
+1. 无。
+
+### P2
+
+1. 无。
+
+## 9. 后续建议（非扣分）
+
+1. 增加 “binding 值大小写/非法空白” 的参数化测试，进一步收紧配置输入面。
+2. 在 CI summary 输出 `projection_provider_e2e` 的 `total/executed/notExecuted` 指标，便于趋势跟踪。

From 7fe6160d5c88fcb0c8b27fea15c691cd60ce872e Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Tue, 24 Feb 2026 14:22:02 +0800
Subject: [PATCH 20/46] Add ReadModel Graph Relations Refactor Blueprint and
 Related Abstractions

- Introduced a comprehensive blueprint for refactoring ReadModel graph relations, detailing the current capabilities, gaps, and restructuring goals.
- Added new abstractions for managing projection relation stores, including interfaces and classes for nodes, edges, and queries.
- Implemented support for relation capabilities in existing providers, enhancing the architecture to accommodate graph relations.
- Updated dependency injection configurations for InMemory and Neo4j providers to register relation stores, ensuring compatibility with the new abstractions.
- Enhanced validation mechanisms to include relation requirements and capabilities, improving overall robustness in provider selection and usage.
---
 ...odel-graph-relations-refactor-blueprint.md | 283 +++++++++
 ...gateProjectionRelationStoreRegistration.cs |  32 ++
 .../Abstractions/IProjectionRelationStore.cs  |  18 +
 .../IProjectionRelationStoreFactory.cs        |   9 +
 ...ProjectionRelationStoreProviderMetadata.cs |   6 +
 ...ProjectionRelationStoreProviderRegistry.cs |   6 +
 ...ProjectionRelationStoreProviderSelector.cs |   9 +
 .../IProjectionRelationStoreRegistration.cs   |  10 +
 .../ProjectionReadModelCapabilityValidator.cs |   6 +
 ...ProjectionReadModelProviderCapabilities.cs |  10 +-
 .../ProjectionReadModelRequirements.cs        |  10 +-
 .../ProjectionRelationDirection.cs            |   8 +
 .../Abstractions/ProjectionRelationEdge.cs    |  18 +
 .../Abstractions/ProjectionRelationNode.cs    |  14 +
 .../Abstractions/ProjectionRelationQuery.cs   |  16 +
 .../ProjectionRelationSubgraph.cs             |  14 +
 .../ServiceCollectionExtensions.cs            |  20 +
 .../ElasticsearchProjectionRelationStore.cs   |  59 ++
 .../ServiceCollectionExtensions.cs            |  23 +-
 .../InMemoryProjectionReadModelStore.cs       |   4 +-
 .../Stores/InMemoryProjectionRelationStore.cs | 263 +++++++++
 .../Neo4jProjectionRelationStoreOptions.cs    |  22 +
 .../ServiceCollectionExtensions.cs            |  33 +-
 .../Stores/Neo4jProjectionReadModelStore.cs   |   4 +-
 .../Stores/Neo4jProjectionRelationStore.cs    | 540 ++++++++++++++++++
 .../ServiceCollectionExtensions.cs            |   3 +
 .../ProjectionReadModelBindingResolver.cs     |   4 +-
 .../ProjectionReadModelProviderSelector.cs    |   8 +-
 .../Runtime/ProjectionRelationStoreFactory.cs |  59 ++
 ...ProjectionRelationStoreProviderRegistry.cs |  14 +
 ...ProjectionRelationStoreProviderSelector.cs |  81 +++
 .../IWorkflowExecutionProjectionPort.cs       |  11 +
 ...orkflowExecutionQueryApplicationService.cs |  11 +
 .../Queries/WorkflowExecutionQueryModels.cs   |  35 ++
 ...orkflowExecutionQueryApplicationService.cs |  26 +
 .../CapabilityApi/ChatQueryEndpoints.cs       |  27 +
 .../ServiceCollectionExtensions.cs            |  17 +
 .../IWorkflowProjectionQueryReader.cs         |  11 +
 .../WorkflowExecutionProjectionService.cs     |  28 +
 .../WorkflowProjectionQueryReader.cs          |  76 ++-
 ...ReadModelStartupValidationHostedService.cs |  16 +
 .../WorkflowExecutionRelationProjector.cs     | 243 ++++++++
 .../WorkflowExecutionReadModelMapper.cs       |  36 ++
 .../WorkflowExecutionRelationConstants.cs     |  18 +
 ...tionProviderServiceCollectionExtensions.cs |  10 +
 .../WorkflowApplicationLayerTests.cs          | 113 ++++
 .../WorkflowRunOrchestrationComponentTests.cs |  26 +
 .../ChatEndpointsInternalTests.cs             | 112 ++++
 ...hatWebSocketCoordinatorAndProtocolTests.cs |   6 +
 ...orkflowCapabilityEndpointsCoverageTests.cs |  16 +
 ...lowExecutionProjectionRegistrationTests.cs |  17 +
 .../WorkflowHostingExtensionsCoverageTests.cs |  10 +
 52 files changed, 2461 insertions(+), 10 deletions(-)
 create mode 100644 docs/architecture/readmodel-graph-relations-refactor-blueprint.md
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionRelationStoreRegistration.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStore.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreFactory.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderMetadata.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderRegistry.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderSelector.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreRegistration.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationDirection.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationEdge.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationNode.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationQuery.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationSubgraph.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionRelationStoreOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionRelationStore.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreFactory.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderRegistry.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderSelector.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionRelationConstants.cs

diff --git a/docs/architecture/readmodel-graph-relations-refactor-blueprint.md b/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
new file mode 100644
index 000000000..9af5ddb27
--- /dev/null
+++ b/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
@@ -0,0 +1,283 @@
+# ReadModel 图关系能力重构文档（实施版）
+
+## 1. 文档信息
+- 状态：Implemented（当前分支已落地）
+- 版本：v2.0
+- 日期：2026-02-24
+- 分支：`feat/readmodel-graph-relations`
+- 适用目录：`src/`、`test/`、`docs/architecture/`
+
+## 2. 目标与边界
+
+### 2.1 目标
+1. 在现有单一 Projection 主链路中引入“图关系事实”能力，不新增平行系统。
+2. 让 `ReadModel` 的 `Graph` 绑定不仅代表“存储类型”，还代表“可用关系能力”。
+3. 在 Workflow 读侧提供关系查询能力（邻接、子图），并保持 `Command -> Event -> Projection -> Query` 主干不变。
+
+### 2.2 非目标
+1. 不引入第二套 Projection Pipeline。
+2. 不在中间层新增 `actorId -> context` 之类进程内事实态缓存。
+3. 不引入跨业务域的通用图 DSL。
+
+## 3. 重构前现状分析（As-Is）
+
+### 3.1 ReadModel 索引能力
+1. 运行时已存在统一选择链：`Bindings -> Requirements -> Capabilities -> Selector -> StoreFactory`。
+2. `ProjectionReadModelIndexKind` 已支持 `Document` / `Graph`。
+3. Provider 已支持统一注册与能力协商：InMemory / Elasticsearch / Neo4j。
+
+### 3.2 关系能力缺口
+1. 抽象层缺少关系一等接口：只有 `IProjectionReadModelStore<TReadModel,TKey>`，没有节点/边读写与遍历契约。
+2. `Graph` 绑定未约束“关系能力”：Provider 选择只关注索引，不关注关系存储/遍历。
+3. Workflow 读侧关系数据仅以 `Topology` 列表存在于文档读模型，未形成图事实源。
+4. API 没有关系端点，仅有 actor snapshot/timeline。
+
+## 4. 设计原则（与仓库顶级规则对齐）
+1. 单主干：关系能力挂接既有 Runtime 选择器与 Projector 协调器。
+2. 分层清晰：
+- `Abstractions` 定义关系契约。
+- `Runtime` 做能力协商与创建。
+- `Providers` 做关系存储实现。
+- `Workflow` 做关系语义映射与查询暴露。
+3. 事实源唯一：关系事实进入 `IProjectionRelationStore`；`WorkflowExecutionReport.Topology` 保留为派生视图。
+4. 可验证：构建、测试、架构门禁、测试稳定性门禁全部可执行。
+
+## 5. 目标架构（To-Be）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    A["Projection Bindings"] --> B["ProjectionReadModelBindingResolver"]
+    B --> C["ProjectionReadModelRequirements"]
+    C --> D["ReadModel Provider Selector"]
+    C --> E["Relation Provider Selector"]
+    D --> F["IProjectionReadModelStore"]
+    E --> G["IProjectionRelationStore"]
+    F --> H["WorkflowExecutionReadModelProjector"]
+    F --> I["WorkflowExecutionRelationProjector"]
+    G --> I
+    I --> J["Graph Facts (Node/Edge)"]
+    H --> K["WorkflowExecutionReport"]
+    K --> L["WorkflowProjectionQueryReader"]
+    J --> L
+```
+
+## 6. 抽象层重构内容
+
+### 6.1 新增关系契约
+新增文件：
+1. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStore.cs`
+2. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationNode.cs`
+3. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationEdge.cs`
+4. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationQuery.cs`
+5. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationSubgraph.cs`
+6. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationDirection.cs`
+
+### 6.2 新增关系 Provider 选择抽象
+新增文件：
+1. `IProjectionRelationStoreRegistration`
+2. `DelegateProjectionRelationStoreRegistration`
+3. `IProjectionRelationStoreProviderRegistry`
+4. `IProjectionRelationStoreProviderSelector`
+5. `IProjectionRelationStoreFactory`
+
+### 6.3 能力模型扩展
+扩展文件：
+1. `ProjectionReadModelRequirements`
+- `RequiresRelations`
+- `RequiresRelationTraversal`
+2. `ProjectionReadModelProviderCapabilities`
+- `SupportsRelations`
+- `SupportsRelationTraversal`
+3. `ProjectionReadModelCapabilityValidator`
+- 新增关系能力校验规则。
+
+## 7. Runtime 重构内容
+
+### 7.1 新增关系 Runtime 组件
+新增文件：
+1. `ProjectionRelationStoreProviderRegistry`
+2. `ProjectionRelationStoreProviderSelector`
+3. `ProjectionRelationStoreFactory`
+
+### 7.2 运行时注入扩展
+文件：`src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs`
+1. 注册关系 Provider Registry/Selector/Factory。
+
+### 7.3 绑定语义增强
+文件：`ProjectionReadModelBindingResolver.cs`
+1. 当 binding 为 `Graph` 时，要求：
+- `requiresRelations = true`
+- `requiresRelationTraversal = true`
+
+## 8. Provider 层重构内容
+
+### 8.1 InMemory
+新增：
+1. `InMemoryProjectionRelationStore`
+
+扩展：
+1. `AddInMemoryRelationStoreRegistration(...)`
+2. InMemory ReadModel capability 增加 relation 支持声明。
+
+能力：
+1. 节点/边 upsert
+2. 邻居查询
+3. 有界深度子图查询（BFS 风格）
+
+### 8.2 Elasticsearch
+新增：
+1. `ElasticsearchProjectionRelationStore`（显式 no-op）
+
+扩展：
+1. `AddElasticsearchRelationStoreRegistration(...)`
+
+能力声明：
+1. `supportsRelations=false`
+2. `supportsRelationTraversal=false`
+
+### 8.3 Neo4j
+新增：
+1. `Neo4jProjectionRelationStore`
+2. `Neo4jProjectionRelationStoreOptions`
+
+扩展：
+1. `AddNeo4jRelationStoreRegistration(...)`
+2. Neo4j ReadModel capability 增加 relation 支持声明。
+
+能力：
+1. 节点/边 upsert/delete
+2. 邻居查询（入/出/双向）
+3. 有界深度子图查询
+4. 节点唯一约束自动初始化（可配置）
+
+## 9. Workflow 层重构内容
+
+### 9.1 关系投影器
+新增文件：
+1. `src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs`
+
+策略：
+1. 复用同一 `IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>` 主链。
+2. `InitializeAsync` 创建根 actor 与 run 节点，并写 `OWNS` 边。
+3. `CompleteAsync` 按 runtime topology 写 `CHILD_OF` 边，并按 step 写 `CONTAINS_STEP` 边。
+4. 关系 scope 固定为 `WorkflowExecutionRelationConstants.Scope`。
+
+### 9.2 关系查询链路
+扩展：
+1. `IWorkflowProjectionQueryReader`
+2. `WorkflowProjectionQueryReader`
+3. `IWorkflowExecutionProjectionPort`
+4. `WorkflowExecutionProjectionService`
+5. `IWorkflowExecutionQueryApplicationService`
+6. `WorkflowExecutionQueryApplicationService`
+7. `WorkflowExecutionReadModelMapper`
+8. `WorkflowExecutionQueryModels`
+
+新增：
+1. `WorkflowExecutionRelationConstants`
+
+### 9.3 Workflow DI 选择器接入
+文件：`src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`
+1. 在既有 ReadModel selector 基础上增加 Relation selector。
+2. `IProjectionRelationStore` 使用同一 selection plan（provider + requirements）。
+
+### 9.4 启动期 fail-fast 校验增强
+文件：`WorkflowReadModelStartupValidationHostedService.cs`
+1. 启动时同时校验：
+- ReadModel Provider 选择与能力
+- Relation Provider 选择与能力
+
+## 10. Host 与 API 改造
+
+### 10.1 Provider 组合层
+文件：`src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
+1. 为三类 provider 全部注册 relation store：
+- InMemory
+- Elasticsearch
+- Neo4j
+
+### 10.2 新增关系查询端点
+文件：`src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs`
+1. `GET /api/actors/{actorId}/relations?take=200`
+2. `GET /api/actors/{actorId}/relation-subgraph?depth=2&take=200`
+
+## 11. 关系模型约定（Workflow）
+1. NodeType
+- `Actor`
+- `WorkflowRun`
+- `WorkflowStep`
+2. RelationType
+- `OWNS`
+- `CHILD_OF`
+- `CONTAINS_STEP`
+3. Scope
+- `workflow-execution-relations`
+
+## 12. Provider 能力矩阵
+
+| Provider | IndexKinds | SupportsRelations | SupportsRelationTraversal | 说明 |
+|---|---|---:|---:|---|
+| InMemory | None | Yes | Yes | 开发/测试优先，内存实现 |
+| Elasticsearch | Document | No | No | 文档索引，不作为关系事实源 |
+| Neo4j | Graph | Yes | Yes | 生产图关系能力 |
+
+## 13. 迁移与上线建议（最佳实践）
+1. Phase 1：合并结构改造（本次）
+- 接口、Runtime、Provider、Workflow API 全链路到位。
+2. Phase 2：关系数据回填（可选）
+- 从历史 `WorkflowExecutionReport.Topology` 扫描并幂等写回关系边。
+3. Phase 3：灰度切流
+- 对关键租户/环境启用 `Graph + Neo4j` 绑定。
+4. Phase 4：清理
+- 删除历史临时拼装逻辑，固定关系查询走 relation store。
+
+## 14. 验证与门禁
+
+### 14.1 已执行验证命令
+1. `dotnet build aevatar.slnx --nologo`
+2. `dotnet test test/Aevatar.Workflow.Application.Tests/Aevatar.Workflow.Application.Tests.csproj --nologo`
+3. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
+4. `dotnet test aevatar.slnx --nologo`
+5. `bash tools/ci/architecture_guards.sh`
+6. `bash tools/ci/test_stability_guards.sh`
+
+### 14.2 验证结果
+1. 全部通过，无编译错误。
+2. 受影响测试与全量测试通过。
+3. 架构门禁与测试稳定性门禁通过。
+
+## 15. 风险与后续优化
+
+### 15.1 当前风险
+1. Elasticsearch relation store 为 no-op，若配置为文档 provider 且未声明 Graph 绑定，关系查询会返回空结果。
+2. Workflow relation projector 目前以 `CompleteAsync` 为主写入点，超长运行中间态关系不实时可见。
+
+### 15.2 建议优化
+1. 增加 relation query 指标（QPS、P95、结果规模）与告警阈值。
+2. 增加 Neo4j relation E2E（容器化）专项测试。
+3. 如需实时关系可视化，可在 `ProjectAsync` 逐步增量写入关键边类型。
+
+## 16. 关键变更清单（按层）
+
+### 16.1 Abstractions
+1. 新增关系模型与 relation provider 选择抽象。
+2. 扩展 requirements/capabilities/validator。
+
+### 16.2 Runtime
+1. 新增 relation provider registry/selector/factory。
+2. Graph binding 对应关系能力要求。
+
+### 16.3 Providers
+1. InMemory/Neo4j 完整 relation store。
+2. Elasticsearch 显式不支持关系。
+
+### 16.4 Workflow
+1. 新增 `WorkflowExecutionRelationProjector`。
+2. Query/Application/Port/API 全链路支持 relations/subgraph。
+3. 启动期 relation provider fail-fast。
+
+### 16.5 Tests
+1. 全部 fake 接口实现同步。
+2. 新增关系查询应用层测试与 API 端点测试。
+3. Host provider 注册覆盖扩展到 relation registration。
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionRelationStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionRelationStoreRegistration.cs
new file mode 100644
index 000000000..51c877116
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionRelationStoreRegistration.cs
@@ -0,0 +1,32 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class DelegateProjectionRelationStoreRegistration
+    : IProjectionRelationStoreRegistration
+{
+    private readonly Func<IServiceProvider, IProjectionRelationStore> _factory;
+
+    public DelegateProjectionRelationStoreRegistration(
+        string providerName,
+        ProjectionReadModelProviderCapabilities capabilities,
+        Func<IServiceProvider, IProjectionRelationStore> factory)
+    {
+        if (string.IsNullOrWhiteSpace(providerName))
+            throw new ArgumentException("Provider name must not be empty.", nameof(providerName));
+        ArgumentNullException.ThrowIfNull(capabilities);
+        ArgumentNullException.ThrowIfNull(factory);
+
+        ProviderName = providerName.Trim();
+        Capabilities = capabilities;
+        _factory = factory;
+    }
+
+    public string ProviderName { get; }
+
+    public ProjectionReadModelProviderCapabilities Capabilities { get; }
+
+    public IProjectionRelationStore Create(IServiceProvider serviceProvider)
+    {
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+        return _factory(serviceProvider);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStore.cs
new file mode 100644
index 000000000..d792b7969
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStore.cs
@@ -0,0 +1,18 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionRelationStore
+{
+    Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken ct = default);
+
+    Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken ct = default);
+
+    Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default);
+
+    Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default);
+
+    Task<ProjectionRelationSubgraph> GetSubgraphAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreFactory.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreFactory.cs
new file mode 100644
index 000000000..d07980700
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreFactory.cs
@@ -0,0 +1,9 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionRelationStoreFactory
+{
+    IProjectionRelationStore Create(
+        IServiceProvider serviceProvider,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderMetadata.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderMetadata.cs
new file mode 100644
index 000000000..c8fc3fcce
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderMetadata.cs
@@ -0,0 +1,6 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionRelationStoreProviderMetadata
+{
+    ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderRegistry.cs
new file mode 100644
index 000000000..146fb30d3
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderRegistry.cs
@@ -0,0 +1,6 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionRelationStoreProviderRegistry
+{
+    IReadOnlyList<IProjectionRelationStoreRegistration> GetRegistrations(IServiceProvider serviceProvider);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderSelector.cs
new file mode 100644
index 000000000..a4a755fb0
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderSelector.cs
@@ -0,0 +1,9 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionRelationStoreProviderSelector
+{
+    IProjectionRelationStoreRegistration Select(
+        IReadOnlyList<IProjectionRelationStoreRegistration> registrations,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreRegistration.cs
new file mode 100644
index 000000000..f350069af
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreRegistration.cs
@@ -0,0 +1,10 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionRelationStoreRegistration
+{
+    string ProviderName { get; }
+
+    ProjectionReadModelProviderCapabilities Capabilities { get; }
+
+    IProjectionRelationStore Create(IServiceProvider serviceProvider);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs
index bb6bb87ef..4ee3c55ee 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs
@@ -34,6 +34,12 @@ public static IReadOnlyList<string> Validate(
         if (requirements.RequiresSchemaValidation && !capabilities.SupportsSchemaValidation)
             violations.Add("requires schema validation, but provider does not support schema validation");
 
+        if (requirements.RequiresRelations && !capabilities.SupportsRelations)
+            violations.Add("requires relation storage, but provider does not support relations");
+
+        if (requirements.RequiresRelationTraversal && !capabilities.SupportsRelationTraversal)
+            violations.Add("requires relation traversal, but provider does not support relation traversal");
+
         return violations;
     }
 
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs
index bb5d50d18..fd7721284 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs
@@ -10,7 +10,9 @@ public ProjectionReadModelProviderCapabilities(
         bool supportsIndexing,
         IEnumerable<ProjectionReadModelIndexKind>? indexKinds = null,
         bool supportsAliases = false,
-        bool supportsSchemaValidation = false)
+        bool supportsSchemaValidation = false,
+        bool supportsRelations = false,
+        bool supportsRelationTraversal = false)
     {
         if (string.IsNullOrWhiteSpace(providerName))
             throw new ArgumentException("Provider name must not be empty.", nameof(providerName));
@@ -19,6 +21,8 @@ public ProjectionReadModelProviderCapabilities(
         SupportsIndexing = supportsIndexing;
         SupportsAliases = supportsAliases;
         SupportsSchemaValidation = supportsSchemaValidation;
+        SupportsRelations = supportsRelations;
+        SupportsRelationTraversal = supportsRelationTraversal;
 
         var normalizedIndexKinds = (indexKinds ?? [])
             .Where(x => x != ProjectionReadModelIndexKind.None)
@@ -43,4 +47,8 @@ public ProjectionReadModelProviderCapabilities(
     public bool SupportsAliases { get; }
 
     public bool SupportsSchemaValidation { get; }
+
+    public bool SupportsRelations { get; }
+
+    public bool SupportsRelationTraversal { get; }
 }
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs
index f17764aba..7b5d7a75b 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs
@@ -9,11 +9,15 @@ public ProjectionReadModelRequirements(
         bool requiresIndexing = false,
         IEnumerable<ProjectionReadModelIndexKind>? requiredIndexKinds = null,
         bool requiresAliases = false,
-        bool requiresSchemaValidation = false)
+        bool requiresSchemaValidation = false,
+        bool requiresRelations = false,
+        bool requiresRelationTraversal = false)
     {
         RequiresIndexing = requiresIndexing;
         RequiresAliases = requiresAliases;
         RequiresSchemaValidation = requiresSchemaValidation;
+        RequiresRelations = requiresRelations;
+        RequiresRelationTraversal = requiresRelationTraversal;
 
         var normalizedIndexKinds = (requiredIndexKinds ?? [])
             .Where(x => x != ProjectionReadModelIndexKind.None)
@@ -31,4 +35,8 @@ public ProjectionReadModelRequirements(
     public bool RequiresAliases { get; }
 
     public bool RequiresSchemaValidation { get; }
+
+    public bool RequiresRelations { get; }
+
+    public bool RequiresRelationTraversal { get; }
 }
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationDirection.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationDirection.cs
new file mode 100644
index 000000000..681c0ff70
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationDirection.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public enum ProjectionRelationDirection
+{
+    Outbound = 0,
+    Inbound = 1,
+    Both = 2,
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationEdge.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationEdge.cs
new file mode 100644
index 000000000..9272a0cf7
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationEdge.cs
@@ -0,0 +1,18 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class ProjectionRelationEdge
+{
+    public string Scope { get; set; } = "";
+
+    public string EdgeId { get; set; } = "";
+
+    public string FromNodeId { get; set; } = "";
+
+    public string ToNodeId { get; set; } = "";
+
+    public string RelationType { get; set; } = "";
+
+    public Dictionary<string, string> Properties { get; set; } = new(StringComparer.Ordinal);
+
+    public DateTimeOffset UpdatedAt { get; set; } = DateTimeOffset.UtcNow;
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationNode.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationNode.cs
new file mode 100644
index 000000000..f8978e67b
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationNode.cs
@@ -0,0 +1,14 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class ProjectionRelationNode
+{
+    public string Scope { get; set; } = "";
+
+    public string NodeId { get; set; } = "";
+
+    public string NodeType { get; set; } = "";
+
+    public Dictionary<string, string> Properties { get; set; } = new(StringComparer.Ordinal);
+
+    public DateTimeOffset UpdatedAt { get; set; } = DateTimeOffset.UtcNow;
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationQuery.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationQuery.cs
new file mode 100644
index 000000000..a1f20d155
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationQuery.cs
@@ -0,0 +1,16 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class ProjectionRelationQuery
+{
+    public string Scope { get; set; } = "";
+
+    public string RootNodeId { get; set; } = "";
+
+    public ProjectionRelationDirection Direction { get; set; } = ProjectionRelationDirection.Both;
+
+    public IReadOnlyList<string> RelationTypes { get; set; } = [];
+
+    public int Depth { get; set; } = 1;
+
+    public int Take { get; set; } = 200;
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationSubgraph.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationSubgraph.cs
new file mode 100644
index 000000000..f879d3d47
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationSubgraph.cs
@@ -0,0 +1,14 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public sealed class ProjectionRelationSubgraph
+{
+    public ProjectionRelationSubgraph()
+    {
+        Nodes = [];
+        Edges = [];
+    }
+
+    public IReadOnlyList<ProjectionRelationNode> Nodes { get; set; }
+
+    public IReadOnlyList<ProjectionRelationEdge> Edges { get; set; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index 496fa1b4f..755e0fc63 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -39,4 +39,24 @@ public static IServiceCollection AddElasticsearchReadModelStoreRegistration<TRea
 
         return services;
     }
+
+    public static IServiceCollection AddElasticsearchRelationStoreRegistration(
+        this IServiceCollection services,
+        string providerName = ProjectionReadModelProviderNames.Elasticsearch)
+    {
+        services.AddSingleton<IProjectionRelationStoreRegistration>(
+            new DelegateProjectionRelationStoreRegistration(
+                providerName,
+                new ProjectionReadModelProviderCapabilities(
+                    providerName,
+                    supportsIndexing: true,
+                    indexKinds: [ProjectionReadModelIndexKind.Document],
+                    supportsAliases: true,
+                    supportsSchemaValidation: true,
+                    supportsRelations: false,
+                    supportsRelationTraversal: false),
+                _ => new ElasticsearchProjectionRelationStore(providerName)));
+
+        return services;
+    }
 }
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
new file mode 100644
index 000000000..7da58fb70
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
@@ -0,0 +1,59 @@
+namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+
+public sealed class ElasticsearchProjectionRelationStore
+    : IProjectionRelationStore,
+      IProjectionRelationStoreProviderMetadata
+{
+    public ElasticsearchProjectionRelationStore(
+        string providerName = ProjectionReadModelProviderNames.Elasticsearch)
+    {
+        ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
+            providerName,
+            supportsIndexing: true,
+            indexKinds: [ProjectionReadModelIndexKind.Document],
+            supportsAliases: true,
+            supportsSchemaValidation: true,
+            supportsRelations: false,
+            supportsRelationTraversal: false);
+    }
+
+    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+
+    public Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(node);
+        ct.ThrowIfCancellationRequested();
+        return Task.CompletedTask;
+    }
+
+    public Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(edge);
+        ct.ThrowIfCancellationRequested();
+        return Task.CompletedTask;
+    }
+
+    public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        return Task.CompletedTask;
+    }
+
+    public Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(query);
+        ct.ThrowIfCancellationRequested();
+        return Task.FromResult<IReadOnlyList<ProjectionRelationEdge>>([]);
+    }
+
+    public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(query);
+        ct.ThrowIfCancellationRequested();
+        return Task.FromResult(new ProjectionRelationSubgraph());
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index 3aa3ea803..452cec1c7 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -20,7 +20,11 @@ public static IServiceCollection AddInMemoryReadModelStoreRegistration<TReadMode
         services.AddSingleton<IProjectionReadModelStoreRegistration<TReadModel, TKey>>(
             new DelegateProjectionReadModelStoreRegistration<TReadModel, TKey>(
                 providerName,
-                new ProjectionReadModelProviderCapabilities(providerName, supportsIndexing: false),
+                new ProjectionReadModelProviderCapabilities(
+                    providerName,
+                    supportsIndexing: false,
+                    supportsRelations: true,
+                    supportsRelationTraversal: true),
                 provider => new InMemoryProjectionReadModelStore<TReadModel, TKey>(
                     keySelector,
                     keyFormatter,
@@ -31,4 +35,21 @@ public static IServiceCollection AddInMemoryReadModelStoreRegistration<TReadMode
 
         return services;
     }
+
+    public static IServiceCollection AddInMemoryRelationStoreRegistration(
+        this IServiceCollection services,
+        string providerName = ProjectionReadModelProviderNames.InMemory)
+    {
+        services.AddSingleton<IProjectionRelationStoreRegistration>(
+            new DelegateProjectionRelationStoreRegistration(
+                providerName,
+                new ProjectionReadModelProviderCapabilities(
+                    providerName,
+                    supportsIndexing: false,
+                    supportsRelations: true,
+                    supportsRelationTraversal: true),
+                _ => new InMemoryProjectionRelationStore(providerName)));
+
+        return services;
+    }
 }
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
index 9f33f36cb..cb7d26722 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
@@ -34,7 +34,9 @@ public InMemoryProjectionReadModelStore(
         _logger = logger ?? NullLogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>.Instance;
         ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
             providerName,
-            supportsIndexing: false);
+            supportsIndexing: false,
+            supportsRelations: true,
+            supportsRelationTraversal: true);
     }
 
     public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs
new file mode 100644
index 000000000..a011b30e2
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs
@@ -0,0 +1,263 @@
+using System.Text.Json;
+
+namespace Aevatar.CQRS.Projection.Providers.InMemory.Stores;
+
+public sealed class InMemoryProjectionRelationStore
+    : IProjectionRelationStore,
+      IProjectionRelationStoreProviderMetadata
+{
+    private readonly object _gate = new();
+    private readonly Dictionary<string, ProjectionRelationNode> _nodes = new(StringComparer.Ordinal);
+    private readonly Dictionary<string, ProjectionRelationEdge> _edges = new(StringComparer.Ordinal);
+    private readonly JsonSerializerOptions _jsonOptions = new();
+
+    public InMemoryProjectionRelationStore(
+        string providerName = ProjectionReadModelProviderNames.InMemory)
+    {
+        ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
+            providerName,
+            supportsIndexing: false,
+            supportsRelations: true,
+            supportsRelationTraversal: true);
+    }
+
+    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+
+    public Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(node);
+        ct.ThrowIfCancellationRequested();
+        var scope = NormalizeToken(node.Scope);
+        var nodeId = NormalizeToken(node.NodeId);
+        if (scope.Length == 0 || nodeId.Length == 0)
+            throw new InvalidOperationException("Relation node requires non-empty scope and nodeId.");
+
+        var key = BuildNodeKey(scope, nodeId);
+        var clone = CloneNode(node, scope, nodeId);
+        lock (_gate)
+            _nodes[key] = clone;
+        return Task.CompletedTask;
+    }
+
+    public Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(edge);
+        ct.ThrowIfCancellationRequested();
+        var scope = NormalizeToken(edge.Scope);
+        var edgeId = NormalizeToken(edge.EdgeId);
+        var fromNodeId = NormalizeToken(edge.FromNodeId);
+        var toNodeId = NormalizeToken(edge.ToNodeId);
+        var relationType = NormalizeToken(edge.RelationType);
+        if (scope.Length == 0 || edgeId.Length == 0 || fromNodeId.Length == 0 || toNodeId.Length == 0 || relationType.Length == 0)
+            throw new InvalidOperationException("Relation edge requires non-empty scope/edgeId/fromNodeId/toNodeId/relationType.");
+
+        var key = BuildEdgeKey(scope, edgeId);
+        var clone = CloneEdge(edge, scope, edgeId, fromNodeId, toNodeId, relationType);
+        lock (_gate)
+            _edges[key] = clone;
+        return Task.CompletedTask;
+    }
+
+    public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        var scopeValue = NormalizeToken(scope);
+        var edgeValue = NormalizeToken(edgeId);
+        if (scopeValue.Length == 0 || edgeValue.Length == 0)
+            return Task.CompletedTask;
+
+        lock (_gate)
+            _edges.Remove(BuildEdgeKey(scopeValue, edgeValue));
+        return Task.CompletedTask;
+    }
+
+    public Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(query);
+        ct.ThrowIfCancellationRequested();
+        var scope = NormalizeToken(query.Scope);
+        var rootNodeId = NormalizeToken(query.RootNodeId);
+        if (scope.Length == 0 || rootNodeId.Length == 0)
+            return Task.FromResult<IReadOnlyList<ProjectionRelationEdge>>([]);
+
+        var relationTypes = NormalizeRelationTypes(query.RelationTypes);
+        var take = Math.Clamp(query.Take, 1, 5000);
+        List<ProjectionRelationEdge> edges;
+        lock (_gate)
+        {
+            edges = _edges.Values
+                .Where(x => string.Equals(x.Scope, scope, StringComparison.Ordinal))
+                .Where(x => relationTypes.Count == 0 || relationTypes.Contains(x.RelationType))
+                .Where(x => MatchesDirection(x, rootNodeId, query.Direction))
+                .OrderByDescending(x => x.UpdatedAt)
+                .Take(take)
+                .Select(CloneEdge)
+                .ToList();
+        }
+
+        return Task.FromResult<IReadOnlyList<ProjectionRelationEdge>>(edges);
+    }
+
+    public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(query);
+        ct.ThrowIfCancellationRequested();
+        var scope = NormalizeToken(query.Scope);
+        var rootNodeId = NormalizeToken(query.RootNodeId);
+        if (scope.Length == 0 || rootNodeId.Length == 0)
+            return Task.FromResult(new ProjectionRelationSubgraph());
+
+        var relationTypes = NormalizeRelationTypes(query.RelationTypes);
+        var depth = Math.Clamp(query.Depth, 1, 8);
+        var take = Math.Clamp(query.Take, 1, 5000);
+
+        var visitedNodeIds = new HashSet<string>(StringComparer.Ordinal) { rootNodeId };
+        var frontier = new HashSet<string>(StringComparer.Ordinal) { rootNodeId };
+        var collectedEdges = new Dictionary<string, ProjectionRelationEdge>(StringComparer.Ordinal);
+
+        for (var currentDepth = 0; currentDepth < depth; currentDepth++)
+        {
+            if (frontier.Count == 0 || collectedEdges.Count >= take)
+                break;
+
+            var nextFrontier = new HashSet<string>(StringComparer.Ordinal);
+            foreach (var nodeId in frontier)
+            {
+                ct.ThrowIfCancellationRequested();
+                IReadOnlyList<ProjectionRelationEdge> neighbors;
+                lock (_gate)
+                {
+                    neighbors = _edges.Values
+                        .Where(x => string.Equals(x.Scope, scope, StringComparison.Ordinal))
+                        .Where(x => relationTypes.Count == 0 || relationTypes.Contains(x.RelationType))
+                        .Where(x => MatchesDirection(x, nodeId, query.Direction))
+                        .OrderByDescending(x => x.UpdatedAt)
+                        .ToList();
+                }
+
+                foreach (var edge in neighbors)
+                {
+                    if (collectedEdges.Count >= take)
+                        break;
+
+                    if (!collectedEdges.ContainsKey(edge.EdgeId))
+                        collectedEdges[edge.EdgeId] = CloneEdge(edge);
+
+                    var counterpartNodeId = ResolveCounterpartNodeId(edge, nodeId);
+                    if (counterpartNodeId.Length == 0)
+                        continue;
+
+                    if (visitedNodeIds.Add(counterpartNodeId))
+                        nextFrontier.Add(counterpartNodeId);
+                }
+            }
+
+            frontier = nextFrontier;
+        }
+
+        List<ProjectionRelationNode> nodes;
+        lock (_gate)
+        {
+            nodes = visitedNodeIds
+                .Select(x =>
+                {
+                    var key = BuildNodeKey(scope, x);
+                    if (_nodes.TryGetValue(key, out var existing))
+                        return CloneNode(existing);
+
+                    return new ProjectionRelationNode
+                    {
+                        Scope = scope,
+                        NodeId = x,
+                        NodeType = "Unknown",
+                        Properties = new Dictionary<string, string>(StringComparer.Ordinal),
+                        UpdatedAt = DateTimeOffset.UtcNow,
+                    };
+                })
+                .ToList();
+        }
+
+        var graph = new ProjectionRelationSubgraph
+        {
+            Nodes = nodes,
+            Edges = collectedEdges.Values.ToList(),
+        };
+        return Task.FromResult(graph);
+    }
+
+    private bool MatchesDirection(
+        ProjectionRelationEdge edge,
+        string rootNodeId,
+        ProjectionRelationDirection direction)
+    {
+        return direction switch
+        {
+            ProjectionRelationDirection.Outbound => string.Equals(edge.FromNodeId, rootNodeId, StringComparison.Ordinal),
+            ProjectionRelationDirection.Inbound => string.Equals(edge.ToNodeId, rootNodeId, StringComparison.Ordinal),
+            _ => string.Equals(edge.FromNodeId, rootNodeId, StringComparison.Ordinal) ||
+                 string.Equals(edge.ToNodeId, rootNodeId, StringComparison.Ordinal),
+        };
+    }
+
+    private static string ResolveCounterpartNodeId(ProjectionRelationEdge edge, string nodeId)
+    {
+        if (string.Equals(edge.FromNodeId, nodeId, StringComparison.Ordinal))
+            return edge.ToNodeId;
+        if (string.Equals(edge.ToNodeId, nodeId, StringComparison.Ordinal))
+            return edge.FromNodeId;
+        return "";
+    }
+
+    private static HashSet<string> NormalizeRelationTypes(IReadOnlyList<string> relationTypes)
+    {
+        return relationTypes
+            .Select(NormalizeToken)
+            .Where(x => x.Length > 0)
+            .ToHashSet(StringComparer.Ordinal);
+    }
+
+    private string BuildNodeKey(string scope, string nodeId) => $"{scope}:{nodeId}";
+
+    private string BuildEdgeKey(string scope, string edgeId) => $"{scope}:{edgeId}";
+
+    private ProjectionRelationNode CloneNode(ProjectionRelationNode source) =>
+        CloneNode(source, source.Scope, source.NodeId);
+
+    private ProjectionRelationNode CloneNode(ProjectionRelationNode source, string scope, string nodeId)
+    {
+        var payload = JsonSerializer.Serialize(source, _jsonOptions);
+        var clone = JsonSerializer.Deserialize<ProjectionRelationNode>(payload, _jsonOptions)
+            ?? throw new InvalidOperationException("Failed to clone relation node.");
+        clone.Scope = scope;
+        clone.NodeId = nodeId;
+        return clone;
+    }
+
+    private ProjectionRelationEdge CloneEdge(ProjectionRelationEdge source) =>
+        CloneEdge(source, source.Scope, source.EdgeId, source.FromNodeId, source.ToNodeId, source.RelationType);
+
+    private ProjectionRelationEdge CloneEdge(
+        ProjectionRelationEdge source,
+        string scope,
+        string edgeId,
+        string fromNodeId,
+        string toNodeId,
+        string relationType)
+    {
+        var payload = JsonSerializer.Serialize(source, _jsonOptions);
+        var clone = JsonSerializer.Deserialize<ProjectionRelationEdge>(payload, _jsonOptions)
+            ?? throw new InvalidOperationException("Failed to clone relation edge.");
+        clone.Scope = scope;
+        clone.EdgeId = edgeId;
+        clone.FromNodeId = fromNodeId;
+        clone.ToNodeId = toNodeId;
+        clone.RelationType = relationType;
+        return clone;
+    }
+
+    private static string NormalizeToken(string token) => token?.Trim() ?? "";
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionRelationStoreOptions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionRelationStoreOptions.cs
new file mode 100644
index 000000000..2e40e40a9
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionRelationStoreOptions.cs
@@ -0,0 +1,22 @@
+namespace Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
+
+public sealed class Neo4jProjectionRelationStoreOptions
+{
+    public string Uri { get; set; } = "bolt://localhost:7687";
+
+    public string Username { get; set; } = "neo4j";
+
+    public string Password { get; set; } = "";
+
+    public string Database { get; set; } = "";
+
+    public int RequestTimeoutMs { get; set; } = 5000;
+
+    public bool AutoCreateConstraints { get; set; } = true;
+
+    public string NodeLabel { get; set; } = "ProjectionRelationNode";
+
+    public string EdgeType { get; set; } = "PROJECTION_REL";
+
+    public int MaxTraversalDepth { get; set; } = 4;
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index c8ea3ce45..5b026c871 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -28,7 +28,9 @@ public static IServiceCollection AddNeo4jReadModelStoreRegistration<TReadModel,
                     supportsIndexing: true,
                     indexKinds: [ProjectionReadModelIndexKind.Graph],
                     supportsAliases: false,
-                    supportsSchemaValidation: true),
+                    supportsSchemaValidation: true,
+                    supportsRelations: true,
+                    supportsRelationTraversal: true),
                 provider => new Neo4jProjectionReadModelStore<TReadModel, TKey>(
                     optionsFactory(provider),
                     scope,
@@ -39,4 +41,33 @@ public static IServiceCollection AddNeo4jReadModelStoreRegistration<TReadModel,
 
         return services;
     }
+
+    public static IServiceCollection AddNeo4jRelationStoreRegistration(
+        this IServiceCollection services,
+        Func<IServiceProvider, Neo4jProjectionRelationStoreOptions> optionsFactory,
+        string scope,
+        string providerName = ProjectionReadModelProviderNames.Neo4j)
+    {
+        ArgumentNullException.ThrowIfNull(optionsFactory);
+        ArgumentException.ThrowIfNullOrWhiteSpace(scope);
+
+        services.AddSingleton<IProjectionRelationStoreRegistration>(
+            new DelegateProjectionRelationStoreRegistration(
+                providerName,
+                new ProjectionReadModelProviderCapabilities(
+                    providerName,
+                    supportsIndexing: true,
+                    indexKinds: [ProjectionReadModelIndexKind.Graph],
+                    supportsAliases: false,
+                    supportsSchemaValidation: true,
+                    supportsRelations: true,
+                    supportsRelationTraversal: true),
+                provider => new Neo4jProjectionRelationStore(
+                    optionsFactory(provider),
+                    scope,
+                    providerName,
+                    provider.GetService<ILogger<Neo4jProjectionRelationStore>>())));
+
+        return services;
+    }
 }
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
index 3e1fe3138..d52d5264a 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
@@ -60,7 +60,9 @@ public Neo4jProjectionReadModelStore(
             supportsIndexing: true,
             indexKinds: [ProjectionReadModelIndexKind.Graph],
             supportsAliases: false,
-            supportsSchemaValidation: true);
+            supportsSchemaValidation: true,
+            supportsRelations: true,
+            supportsRelationTraversal: true);
     }
 
     public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionRelationStore.cs
new file mode 100644
index 000000000..eea9e5a65
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionRelationStore.cs
@@ -0,0 +1,540 @@
+using System.Text.Json;
+using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+using Neo4j.Driver;
+
+namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
+
+public sealed class Neo4jProjectionRelationStore
+    : IProjectionRelationStore,
+      IProjectionRelationStoreProviderMetadata,
+      IAsyncDisposable
+{
+    private readonly IDriver _driver;
+    private readonly string _scope;
+    private readonly string _database;
+    private readonly string _nodeLabel;
+    private readonly string _edgeType;
+    private readonly bool _autoCreateConstraints;
+    private readonly int _maxTraversalDepth;
+    private readonly ILogger<Neo4jProjectionRelationStore> _logger;
+    private readonly SemaphoreSlim _schemaLock = new(1, 1);
+    private readonly JsonSerializerOptions _jsonOptions = new()
+    {
+        PropertyNameCaseInsensitive = true,
+    };
+    private bool _schemaInitialized;
+
+    public Neo4jProjectionRelationStore(
+        Neo4jProjectionRelationStoreOptions options,
+        string scope,
+        string providerName = ProjectionReadModelProviderNames.Neo4j,
+        ILogger<Neo4jProjectionRelationStore>? logger = null)
+    {
+        ArgumentNullException.ThrowIfNull(options);
+        ArgumentException.ThrowIfNullOrWhiteSpace(scope);
+
+        _scope = scope.Trim();
+        _database = options.Database?.Trim() ?? "";
+        _nodeLabel = NormalizeLabel(options.NodeLabel, "ProjectionRelationNode");
+        _edgeType = NormalizeLabel(options.EdgeType, "PROJECTION_REL");
+        _autoCreateConstraints = options.AutoCreateConstraints;
+        _maxTraversalDepth = Math.Clamp(options.MaxTraversalDepth, 1, 8);
+        _logger = logger ?? NullLogger<Neo4jProjectionRelationStore>.Instance;
+
+        var auth = string.IsNullOrWhiteSpace(options.Username)
+            ? AuthTokens.None
+            : AuthTokens.Basic(options.Username.Trim(), options.Password ?? "");
+        _driver = GraphDatabase.Driver(options.Uri, auth, config =>
+            config.WithConnectionTimeout(TimeSpan.FromMilliseconds(Math.Max(1000, options.RequestTimeoutMs))));
+
+        ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
+            providerName,
+            supportsIndexing: true,
+            indexKinds: [ProjectionReadModelIndexKind.Graph],
+            supportsAliases: false,
+            supportsSchemaValidation: true,
+            supportsRelations: true,
+            supportsRelationTraversal: true);
+    }
+
+    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+
+    public async Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(node);
+        ct.ThrowIfCancellationRequested();
+
+        var scope = NormalizeToken(node.Scope);
+        var nodeId = NormalizeToken(node.NodeId);
+        if (scope.Length == 0 || nodeId.Length == 0)
+            throw new InvalidOperationException("Relation node requires non-empty scope and nodeId.");
+
+        var nodeType = NormalizeToken(node.NodeType);
+        if (nodeType.Length == 0)
+            nodeType = "Unknown";
+        var updatedAtEpochMs = NormalizeTimestamp(node.UpdatedAt);
+        var propertiesJson = SerializeProperties(node.Properties);
+        var cypher = $"MERGE (n:{_nodeLabel} {{scope: $scope, nodeId: $nodeId}}) " +
+                     "SET n.nodeType = $nodeType, n.propertiesJson = $propertiesJson, n.updatedAtEpochMs = $updatedAtEpochMs";
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = scope,
+            ["nodeId"] = nodeId,
+            ["nodeType"] = nodeType,
+            ["propertiesJson"] = propertiesJson,
+            ["updatedAtEpochMs"] = updatedAtEpochMs,
+        };
+
+        await EnsureSchemaAsync(ct);
+        await ExecuteWriteAsync(cypher, parameters, ct);
+    }
+
+    public async Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(edge);
+        ct.ThrowIfCancellationRequested();
+
+        var scope = NormalizeToken(edge.Scope);
+        var edgeId = NormalizeToken(edge.EdgeId);
+        var fromNodeId = NormalizeToken(edge.FromNodeId);
+        var toNodeId = NormalizeToken(edge.ToNodeId);
+        var relationType = NormalizeToken(edge.RelationType);
+        if (scope.Length == 0 || edgeId.Length == 0 || fromNodeId.Length == 0 || toNodeId.Length == 0 || relationType.Length == 0)
+        {
+            throw new InvalidOperationException("Relation edge requires non-empty scope/edgeId/fromNodeId/toNodeId/relationType.");
+        }
+
+        var updatedAtEpochMs = NormalizeTimestamp(edge.UpdatedAt);
+        var propertiesJson = SerializeProperties(edge.Properties);
+        var cypher = $"MERGE (from:{_nodeLabel} {{scope: $scope, nodeId: $fromNodeId}}) " +
+                     "ON CREATE SET from.nodeType = 'Unknown', from.propertiesJson = '{}', from.updatedAtEpochMs = $updatedAtEpochMs " +
+                     $"MERGE (to:{_nodeLabel} {{scope: $scope, nodeId: $toNodeId}}) " +
+                     "ON CREATE SET to.nodeType = 'Unknown', to.propertiesJson = '{}', to.updatedAtEpochMs = $updatedAtEpochMs " +
+                     $"MERGE (from)-[r:{_edgeType} {{scope: $scope, edgeId: $edgeId}}]->(to) " +
+                     "SET r.relationType = $relationType, r.propertiesJson = $propertiesJson, r.updatedAtEpochMs = $updatedAtEpochMs";
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = scope,
+            ["edgeId"] = edgeId,
+            ["fromNodeId"] = fromNodeId,
+            ["toNodeId"] = toNodeId,
+            ["relationType"] = relationType,
+            ["propertiesJson"] = propertiesJson,
+            ["updatedAtEpochMs"] = updatedAtEpochMs,
+        };
+
+        await EnsureSchemaAsync(ct);
+        await ExecuteWriteAsync(cypher, parameters, ct);
+    }
+
+    public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        var scopeValue = NormalizeToken(scope);
+        var edgeIdValue = NormalizeToken(edgeId);
+        if (scopeValue.Length == 0 || edgeIdValue.Length == 0)
+            return;
+
+        await EnsureSchemaAsync(ct);
+        var cypher = $"MATCH ()-[r:{_edgeType} {{scope: $scope, edgeId: $edgeId}}]->() DELETE r";
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = scopeValue,
+            ["edgeId"] = edgeIdValue,
+        };
+        await ExecuteWriteAsync(cypher, parameters, ct);
+    }
+
+    public async Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(query);
+        ct.ThrowIfCancellationRequested();
+        var scope = NormalizeToken(query.Scope);
+        var rootNodeId = NormalizeToken(query.RootNodeId);
+        if (scope.Length == 0 || rootNodeId.Length == 0)
+            return [];
+
+        await EnsureSchemaAsync(ct);
+        var boundedTake = Math.Clamp(query.Take, 1, 5000);
+        var relationTypes = NormalizeRelationTypes(query.RelationTypes);
+        var cypher = BuildNeighborCypher(query.Direction, boundedTake);
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = scope,
+            ["rootNodeId"] = rootNodeId,
+            ["relationTypes"] = relationTypes,
+            ["take"] = boundedTake,
+        };
+
+        var rows = await ExecuteReadAsync(cypher, parameters, ct);
+        var edges = new List<ProjectionRelationEdge>(rows.Count);
+        foreach (var row in rows)
+        {
+            var edge = BuildEdgeFromRow(scope, row);
+            if (edge != null)
+                edges.Add(edge);
+        }
+
+        return edges;
+    }
+
+    public async Task<ProjectionRelationSubgraph> GetSubgraphAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(query);
+        ct.ThrowIfCancellationRequested();
+        var scope = NormalizeToken(query.Scope);
+        var rootNodeId = NormalizeToken(query.RootNodeId);
+        if (scope.Length == 0 || rootNodeId.Length == 0)
+            return new ProjectionRelationSubgraph();
+
+        var depth = Math.Clamp(query.Depth, 1, _maxTraversalDepth);
+        var take = Math.Clamp(query.Take, 1, 5000);
+        var visitedNodeIds = new HashSet<string>(StringComparer.Ordinal) { rootNodeId };
+        var frontier = new HashSet<string>(StringComparer.Ordinal) { rootNodeId };
+        var collectedEdges = new Dictionary<string, ProjectionRelationEdge>(StringComparer.Ordinal);
+
+        for (var currentDepth = 0; currentDepth < depth; currentDepth++)
+        {
+            if (frontier.Count == 0 || collectedEdges.Count >= take)
+                break;
+
+            var nextFrontier = new HashSet<string>(StringComparer.Ordinal);
+            foreach (var nodeId in frontier)
+            {
+                ct.ThrowIfCancellationRequested();
+                var neighbors = await GetNeighborsAsync(
+                    new ProjectionRelationQuery
+                    {
+                        Scope = scope,
+                        RootNodeId = nodeId,
+                        Direction = query.Direction,
+                        RelationTypes = query.RelationTypes,
+                        Depth = 1,
+                        Take = take - collectedEdges.Count,
+                    },
+                    ct);
+
+                foreach (var edge in neighbors)
+                {
+                    if (collectedEdges.Count >= take)
+                        break;
+
+                    if (!collectedEdges.ContainsKey(edge.EdgeId))
+                        collectedEdges[edge.EdgeId] = edge;
+
+                    var counterpartNodeId = ResolveCounterpartNodeId(edge, nodeId);
+                    if (counterpartNodeId.Length == 0)
+                        continue;
+
+                    if (visitedNodeIds.Add(counterpartNodeId))
+                        nextFrontier.Add(counterpartNodeId);
+                }
+            }
+
+            frontier = nextFrontier;
+        }
+
+        var nodes = await GetNodesByIdsAsync(scope, visitedNodeIds, ct);
+        if (!nodes.Any(x => string.Equals(x.NodeId, rootNodeId, StringComparison.Ordinal)))
+        {
+            nodes.Add(new ProjectionRelationNode
+            {
+                Scope = scope,
+                NodeId = rootNodeId,
+                NodeType = "Unknown",
+                Properties = new Dictionary<string, string>(StringComparer.Ordinal),
+                UpdatedAt = DateTimeOffset.UtcNow,
+            });
+        }
+
+        return new ProjectionRelationSubgraph
+        {
+            Nodes = nodes,
+            Edges = collectedEdges.Values.ToList(),
+        };
+    }
+
+    public async ValueTask DisposeAsync()
+    {
+        _schemaLock.Dispose();
+        await _driver.DisposeAsync();
+    }
+
+    private async Task<List<ProjectionRelationNode>> GetNodesByIdsAsync(
+        string scope,
+        IReadOnlySet<string> nodeIds,
+        CancellationToken ct)
+    {
+        if (nodeIds.Count == 0)
+            return [];
+
+        await EnsureSchemaAsync(ct);
+        var cypher = $"MATCH (n:{_nodeLabel} {{scope: $scope}}) " +
+                     "WHERE n.nodeId IN $nodeIds " +
+                     "RETURN n.nodeId AS nodeId, " +
+                     "coalesce(n.nodeType, '') AS nodeType, " +
+                     "coalesce(n.propertiesJson, '{}') AS propertiesJson, " +
+                     "coalesce(n.updatedAtEpochMs, 0) AS updatedAtEpochMs";
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = scope,
+            ["nodeIds"] = nodeIds.ToArray(),
+        };
+
+        var rows = await ExecuteReadAsync(cypher, parameters, ct);
+        var nodes = new List<ProjectionRelationNode>(rows.Count);
+        foreach (var row in rows)
+        {
+            if (!row.TryGetValue("nodeId", out var nodeIdValue))
+                continue;
+            var nodeId = NormalizeToken(nodeIdValue.As<string>());
+            if (nodeId.Length == 0)
+                continue;
+
+            var nodeType = row.TryGetValue("nodeType", out var nodeTypeValue)
+                ? NormalizeToken(nodeTypeValue.As<string>())
+                : "Unknown";
+            if (nodeType.Length == 0)
+                nodeType = "Unknown";
+
+            var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
+                ? propertiesJsonValue.As<string>()
+                : "{}";
+            var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
+                ? updatedAtEpochMsValue.As<long>()
+                : 0L;
+
+            nodes.Add(new ProjectionRelationNode
+            {
+                Scope = scope,
+                NodeId = nodeId,
+                NodeType = nodeType,
+                Properties = DeserializeProperties(propertiesJson),
+                UpdatedAt = FromUnixTimeMilliseconds(updatedAtEpochMs),
+            });
+        }
+
+        return nodes;
+    }
+
+    private ProjectionRelationEdge? BuildEdgeFromRow(string scope, IReadOnlyDictionary<string, object> row)
+    {
+        if (!row.TryGetValue("edgeId", out var edgeIdValue))
+            return null;
+        if (!row.TryGetValue("fromNodeId", out var fromNodeIdValue))
+            return null;
+        if (!row.TryGetValue("toNodeId", out var toNodeIdValue))
+            return null;
+
+        var edgeId = NormalizeToken(edgeIdValue.As<string>());
+        var fromNodeId = NormalizeToken(fromNodeIdValue.As<string>());
+        var toNodeId = NormalizeToken(toNodeIdValue.As<string>());
+        if (edgeId.Length == 0 || fromNodeId.Length == 0 || toNodeId.Length == 0)
+            return null;
+
+        var relationType = row.TryGetValue("relationType", out var relationTypeValue)
+            ? NormalizeToken(relationTypeValue.As<string>())
+            : "Unknown";
+        if (relationType.Length == 0)
+            relationType = "Unknown";
+        var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
+            ? propertiesJsonValue.As<string>()
+            : "{}";
+        var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
+            ? updatedAtEpochMsValue.As<long>()
+            : 0L;
+
+        return new ProjectionRelationEdge
+        {
+            Scope = scope,
+            EdgeId = edgeId,
+            FromNodeId = fromNodeId,
+            ToNodeId = toNodeId,
+            RelationType = relationType,
+            Properties = DeserializeProperties(propertiesJson),
+            UpdatedAt = FromUnixTimeMilliseconds(updatedAtEpochMs),
+        };
+    }
+
+    private string BuildNeighborCypher(ProjectionRelationDirection direction, int take)
+    {
+        var filter = "WHERE size($relationTypes) = 0 OR r.relationType IN $relationTypes ";
+        var projection = "RETURN r.edgeId AS edgeId, " +
+                         "startNode(r).nodeId AS fromNodeId, " +
+                         "endNode(r).nodeId AS toNodeId, " +
+                         "coalesce(r.relationType, '') AS relationType, " +
+                         "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
+                         "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
+                         "ORDER BY updatedAtEpochMs DESC LIMIT $take";
+        return direction switch
+        {
+            ProjectionRelationDirection.Outbound =>
+                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})-[r:{_edgeType}]->(:{_nodeLabel} {{scope: $scope}}) " +
+                filter +
+                projection,
+            ProjectionRelationDirection.Inbound =>
+                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})<-[r:{_edgeType}]-(:{_nodeLabel} {{scope: $scope}}) " +
+                filter +
+                projection,
+            _ =>
+                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})-[r:{_edgeType}]-(:{_nodeLabel} {{scope: $scope}}) " +
+                filter +
+                projection,
+        };
+    }
+
+    private async Task EnsureSchemaAsync(CancellationToken ct)
+    {
+        if (!_autoCreateConstraints || _schemaInitialized)
+            return;
+
+        await _schemaLock.WaitAsync(ct);
+        try
+        {
+            if (_schemaInitialized)
+                return;
+
+            var nodeConstraintName = NormalizeConstraintName($"projection_relation_node_scope_id_{_nodeLabel}");
+            var cypher = $"CREATE CONSTRAINT {nodeConstraintName} IF NOT EXISTS " +
+                         $"FOR (n:{_nodeLabel}) REQUIRE (n.scope, n.nodeId) IS UNIQUE";
+            await ExecuteWriteAsync(cypher, new Dictionary<string, object?>(), ct);
+            _schemaInitialized = true;
+        }
+        finally
+        {
+            _schemaLock.Release();
+        }
+    }
+
+    private async Task ExecuteWriteAsync(
+        string cypher,
+        IReadOnlyDictionary<string, object?> parameters,
+        CancellationToken ct)
+    {
+        await using var session = CreateSession(AccessMode.Write);
+        var cursor = await session.RunAsync(cypher, parameters);
+        await cursor.ConsumeAsync();
+        ct.ThrowIfCancellationRequested();
+    }
+
+    private async Task<IReadOnlyList<IReadOnlyDictionary<string, object>>> ExecuteReadAsync(
+        string cypher,
+        IReadOnlyDictionary<string, object?> parameters,
+        CancellationToken ct)
+    {
+        await using var session = CreateSession(AccessMode.Read);
+        var cursor = await session.RunAsync(cypher, parameters);
+        var rows = await cursor.ToListAsync(record =>
+            (IReadOnlyDictionary<string, object>)record.Values.ToDictionary(x => x.Key, x => x.Value, StringComparer.Ordinal));
+        ct.ThrowIfCancellationRequested();
+        return rows;
+    }
+
+    private IAsyncSession CreateSession(AccessMode accessMode)
+    {
+        return _driver.AsyncSession(options =>
+        {
+            options.WithDefaultAccessMode(accessMode);
+            if (_database.Length > 0)
+                options.WithDatabase(_database);
+        });
+    }
+
+    private static string ResolveCounterpartNodeId(ProjectionRelationEdge edge, string nodeId)
+    {
+        if (string.Equals(edge.FromNodeId, nodeId, StringComparison.Ordinal))
+            return edge.ToNodeId;
+        if (string.Equals(edge.ToNodeId, nodeId, StringComparison.Ordinal))
+            return edge.FromNodeId;
+        return "";
+    }
+
+    private static string[] NormalizeRelationTypes(IReadOnlyList<string> relationTypes)
+    {
+        return relationTypes
+            .Select(NormalizeToken)
+            .Where(x => x.Length > 0)
+            .Distinct(StringComparer.Ordinal)
+            .ToArray();
+    }
+
+    private string SerializeProperties(IReadOnlyDictionary<string, string> properties)
+    {
+        if (properties.Count == 0)
+            return "{}";
+        return JsonSerializer.Serialize(properties, _jsonOptions);
+    }
+
+    private Dictionary<string, string> DeserializeProperties(string payload)
+    {
+        if (string.IsNullOrWhiteSpace(payload))
+            return new Dictionary<string, string>(StringComparer.Ordinal);
+        try
+        {
+            var parsed = JsonSerializer.Deserialize<Dictionary<string, string>>(payload, _jsonOptions);
+            return parsed == null
+                ? new Dictionary<string, string>(StringComparer.Ordinal)
+                : new Dictionary<string, string>(parsed, StringComparer.Ordinal);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(
+                ex,
+                "Failed to deserialize relation properties payload. provider={Provider} scope={Scope}",
+                ProviderCapabilities.ProviderName,
+                _scope);
+            return new Dictionary<string, string>(StringComparer.Ordinal);
+        }
+    }
+
+    private static long NormalizeTimestamp(DateTimeOffset timestamp)
+    {
+        if (timestamp == default)
+            return DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+        return timestamp.ToUnixTimeMilliseconds();
+    }
+
+    private static DateTimeOffset FromUnixTimeMilliseconds(long value)
+    {
+        var safeValue = Math.Max(0, value);
+        return DateTimeOffset.FromUnixTimeMilliseconds(safeValue);
+    }
+
+    private static string NormalizeToken(string token) => token?.Trim() ?? "";
+
+    private static string NormalizeLabel(string rawLabel, string fallback)
+    {
+        var label = (rawLabel ?? "").Trim();
+        if (label.Length == 0)
+            label = fallback;
+
+        var chars = label
+            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? ch : '_')
+            .ToArray();
+        var normalized = new string(chars);
+        if (normalized.Length == 0)
+            normalized = fallback;
+        if (char.IsDigit(normalized[0]))
+            normalized = $"N_{normalized}";
+        return normalized;
+    }
+
+    private static string NormalizeConstraintName(string rawName)
+    {
+        var chars = rawName
+            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? char.ToLowerInvariant(ch) : '_')
+            .ToArray();
+        var normalized = new string(chars);
+        if (normalized.Length == 0)
+            return "projection_relation_constraint";
+        if (char.IsDigit(normalized[0]))
+            normalized = $"c_{normalized}";
+        return normalized;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index 0b3dfc039..658e1ec74 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -13,6 +13,9 @@ public static IServiceCollection AddProjectionReadModelRuntime(this IServiceColl
         services.TryAddSingleton<IProjectionReadModelProviderSelector, ProjectionReadModelProviderSelector>();
         services.TryAddSingleton<IProjectionReadModelBindingResolver, ProjectionReadModelBindingResolver>();
         services.TryAddSingleton<IProjectionReadModelStoreFactory, ProjectionReadModelStoreFactory>();
+        services.TryAddSingleton<IProjectionRelationStoreProviderRegistry, ProjectionRelationStoreProviderRegistry>();
+        services.TryAddSingleton<IProjectionRelationStoreProviderSelector, ProjectionRelationStoreProviderSelector>();
+        services.TryAddSingleton<IProjectionRelationStoreFactory, ProjectionRelationStoreFactory>();
         return services;
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
index 08f811cd4..0fdb4cfc6 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
@@ -24,7 +24,9 @@ public ProjectionReadModelRequirements Resolve(
 
         return new ProjectionReadModelRequirements(
             requiresIndexing: true,
-            requiredIndexKinds: [indexKind]);
+            requiredIndexKinds: [indexKind],
+            requiresRelations: indexKind == ProjectionReadModelIndexKind.Graph,
+            requiresRelationTraversal: indexKind == ProjectionReadModelIndexKind.Graph);
     }
 
     private static bool TryGetBinding(
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
index af96e2731..f8b96cd29 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
@@ -71,7 +71,9 @@ private static string FormatRequirements(ProjectionReadModelRequirements require
         return $"requiresIndexing={requirements.RequiresIndexing};" +
                $"requiredIndexKinds=[{string.Join(",", requirements.RequiredIndexKinds)}];" +
                $"requiresAliases={requirements.RequiresAliases};" +
-               $"requiresSchemaValidation={requirements.RequiresSchemaValidation}";
+               $"requiresSchemaValidation={requirements.RequiresSchemaValidation};" +
+               $"requiresRelations={requirements.RequiresRelations};" +
+               $"requiresRelationTraversal={requirements.RequiresRelationTraversal}";
     }
 
     private static string FormatCapabilities(ProjectionReadModelProviderCapabilities capabilities)
@@ -79,6 +81,8 @@ private static string FormatCapabilities(ProjectionReadModelProviderCapabilities
         return $"supportsIndexing={capabilities.SupportsIndexing};" +
                $"indexKinds=[{string.Join(",", capabilities.IndexKinds)}];" +
                $"supportsAliases={capabilities.SupportsAliases};" +
-               $"supportsSchemaValidation={capabilities.SupportsSchemaValidation}";
+               $"supportsSchemaValidation={capabilities.SupportsSchemaValidation};" +
+               $"supportsRelations={capabilities.SupportsRelations};" +
+               $"supportsRelationTraversal={capabilities.SupportsRelationTraversal}";
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreFactory.cs
new file mode 100644
index 000000000..32e2156aa
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreFactory.cs
@@ -0,0 +1,59 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionRelationStoreFactory : IProjectionRelationStoreFactory
+{
+    private readonly IProjectionRelationStoreProviderRegistry _providerRegistry;
+    private readonly IProjectionRelationStoreProviderSelector _providerSelector;
+    private readonly ILogger<ProjectionRelationStoreFactory> _logger;
+
+    public ProjectionRelationStoreFactory(
+        IProjectionRelationStoreProviderRegistry providerRegistry,
+        IProjectionRelationStoreProviderSelector providerSelector,
+        ILogger<ProjectionRelationStoreFactory>? logger = null)
+    {
+        _providerRegistry = providerRegistry;
+        _providerSelector = providerSelector;
+        _logger = logger ?? NullLogger<ProjectionRelationStoreFactory>.Instance;
+    }
+
+    public IProjectionRelationStore Create(
+        IServiceProvider serviceProvider,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements)
+    {
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+        ArgumentNullException.ThrowIfNull(selectionOptions);
+        ArgumentNullException.ThrowIfNull(requirements);
+
+        var registrations = _providerRegistry.GetRegistrations(serviceProvider);
+        var selected = _providerSelector.Select(registrations, selectionOptions, requirements);
+
+        var startedAt = DateTimeOffset.UtcNow;
+        try
+        {
+            var store = selected.Create(serviceProvider);
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogInformation(
+                "Projection relation store created. provider={Provider} elapsedMs={ElapsedMs} result={Result}",
+                selected.ProviderName,
+                elapsedMs,
+                "ok");
+            return store;
+        }
+        catch (Exception ex)
+        {
+            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
+            _logger.LogError(
+                ex,
+                "Projection relation store creation failed. provider={Provider} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
+                selected.ProviderName,
+                elapsedMs,
+                "failed",
+                ex.GetType().Name);
+            throw;
+        }
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderRegistry.cs
new file mode 100644
index 000000000..c22b7eab2
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderRegistry.cs
@@ -0,0 +1,14 @@
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionRelationStoreProviderRegistry : IProjectionRelationStoreProviderRegistry
+{
+    public IReadOnlyList<IProjectionRelationStoreRegistration> GetRegistrations(IServiceProvider serviceProvider)
+    {
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+        return serviceProvider
+            .GetServices<IProjectionRelationStoreRegistration>()
+            .ToList();
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderSelector.cs
new file mode 100644
index 000000000..ba8a5542c
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderSelector.cs
@@ -0,0 +1,81 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionRelationStoreProviderSelector
+    : IProjectionRelationStoreProviderSelector
+{
+    private readonly IProjectionReadModelCapabilityValidator _capabilityValidator;
+    private readonly ILogger<ProjectionRelationStoreProviderSelector> _logger;
+
+    public ProjectionRelationStoreProviderSelector(
+        IProjectionReadModelCapabilityValidator capabilityValidator,
+        ILogger<ProjectionRelationStoreProviderSelector>? logger = null)
+    {
+        _capabilityValidator = capabilityValidator;
+        _logger = logger ?? NullLogger<ProjectionRelationStoreProviderSelector>.Instance;
+    }
+
+    public IProjectionRelationStoreRegistration Select(
+        IReadOnlyList<IProjectionRelationStoreRegistration> registrations,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements)
+    {
+        ArgumentNullException.ThrowIfNull(registrations);
+        ArgumentNullException.ThrowIfNull(selectionOptions);
+        ArgumentNullException.ThrowIfNull(requirements);
+
+        var requestedProviderName = selectionOptions.RequestedProviderName?.Trim() ?? "";
+        if (registrations.Count == 0)
+        {
+            throw new ProjectionProviderSelectionException(
+                typeof(ProjectionRelationNode),
+                requestedProviderName,
+                [],
+                "No relation store provider registrations were found.");
+        }
+
+        IProjectionRelationStoreRegistration selected;
+        if (requestedProviderName.Length == 0)
+        {
+            if (registrations.Count != 1)
+            {
+                throw new ProjectionProviderSelectionException(
+                    typeof(ProjectionRelationNode),
+                    requestedProviderName,
+                    registrations.Select(x => x.ProviderName).ToList(),
+                    "Multiple relation store providers are registered but no explicit provider was requested.");
+            }
+
+            selected = registrations[0];
+        }
+        else
+        {
+            selected = registrations.FirstOrDefault(x =>
+                    string.Equals(x.ProviderName, requestedProviderName, StringComparison.OrdinalIgnoreCase))
+                ?? throw new ProjectionProviderSelectionException(
+                    typeof(ProjectionRelationNode),
+                    requestedProviderName,
+                    registrations.Select(x => x.ProviderName).ToList(),
+                    "Requested relation store provider is not registered.");
+        }
+
+        var violations = _capabilityValidator.Validate(requirements, selected.Capabilities);
+        if (violations.Count > 0 && selectionOptions.FailOnUnsupportedCapabilities)
+        {
+            throw new ProjectionReadModelCapabilityValidationException(
+                typeof(ProjectionRelationNode),
+                requirements,
+                selected.Capabilities,
+                violations);
+        }
+
+        _logger.LogInformation(
+            "Projection relation provider selected. provider={Provider} failOnUnsupportedCapabilities={FailOnUnsupportedCapabilities}",
+            selected.ProviderName,
+            selectionOptions.FailOnUnsupportedCapabilities);
+
+        return selected;
+    }
+}
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionPort.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionPort.cs
index 353ec7896..e76d9668d 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionPort.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionPort.cs
@@ -42,4 +42,15 @@ Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
         string actorId,
         int take = 200,
         CancellationToken ct = default);
+
+    Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+        string actorId,
+        int take = 200,
+        CancellationToken ct = default);
+
+    Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
index 273920e93..a50f6f8ac 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
@@ -11,4 +11,15 @@ public interface IWorkflowExecutionQueryApplicationService
     Task<WorkflowActorSnapshot?> GetActorSnapshotAsync(string actorId, CancellationToken ct = default);
 
     Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(string actorId, int take = 200, CancellationToken ct = default);
+
+    Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
+        string actorId,
+        int take = 200,
+        CancellationToken ct = default);
+
+    Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
index f04aa39ec..4e9591f55 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
@@ -34,6 +34,41 @@ public sealed class WorkflowActorTimelineItem
     public Dictionary<string, string> Data { get; set; } = [];
 }
 
+public sealed class WorkflowActorRelationNode
+{
+    public string NodeId { get; set; } = string.Empty;
+
+    public string NodeType { get; set; } = string.Empty;
+
+    public DateTimeOffset UpdatedAt { get; set; }
+
+    public Dictionary<string, string> Properties { get; set; } = [];
+}
+
+public sealed class WorkflowActorRelationItem
+{
+    public string EdgeId { get; set; } = string.Empty;
+
+    public string FromNodeId { get; set; } = string.Empty;
+
+    public string ToNodeId { get; set; } = string.Empty;
+
+    public string RelationType { get; set; } = string.Empty;
+
+    public DateTimeOffset UpdatedAt { get; set; }
+
+    public Dictionary<string, string> Properties { get; set; } = [];
+}
+
+public sealed class WorkflowActorRelationSubgraph
+{
+    public string RootNodeId { get; set; } = string.Empty;
+
+    public List<WorkflowActorRelationNode> Nodes { get; set; } = [];
+
+    public List<WorkflowActorRelationItem> Edges { get; set; } = [];
+}
+
 public sealed record WorkflowTopologyEdge(string Parent, string Child);
 
 public enum WorkflowRunProjectionScope
diff --git a/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs b/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
index 93965941e..f89111b8b 100644
--- a/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
+++ b/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
@@ -54,4 +54,30 @@ public async Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsy
 
         return await _projectionPort.ListActorTimelineAsync(actorId, take, ct);
     }
+
+    public async Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
+        string actorId,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        if (!ActorQueryEnabled || string.IsNullOrWhiteSpace(actorId))
+            return [];
+
+        return await _projectionPort.GetActorRelationsAsync(actorId, take, ct);
+    }
+
+    public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        if (!ActorQueryEnabled || string.IsNullOrWhiteSpace(actorId))
+            return new WorkflowActorRelationSubgraph
+            {
+                RootNodeId = actorId ?? string.Empty,
+            };
+
+        return await _projectionPort.GetActorRelationSubgraphAsync(actorId, depth, take, ct);
+    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs b/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
index c897a409a..c1a85fafd 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
@@ -21,6 +21,12 @@ public static void Map(RouteGroupBuilder group)
 
         group.MapGet("/actors/{actorId}/timeline", ListActorTimeline)
             .Produces(StatusCodes.Status200OK);
+
+        group.MapGet("/actors/{actorId}/relations", ListActorRelations)
+            .Produces(StatusCodes.Status200OK);
+
+        group.MapGet("/actors/{actorId}/relation-subgraph", GetActorRelationSubgraph)
+            .Produces(StatusCodes.Status200OK);
     }
 
     internal static async Task<IResult> ListAgents(
@@ -53,4 +59,25 @@ internal static async Task<IResult> ListActorTimeline(
         return Results.Ok(timeline);
     }
 
+    internal static async Task<IResult> ListActorRelations(
+        string actorId,
+        IWorkflowExecutionQueryApplicationService queryService,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        var relations = await queryService.ListActorRelationsAsync(actorId, take, ct);
+        return Results.Ok(relations);
+    }
+
+    internal static async Task<IResult> GetActorRelationSubgraph(
+        string actorId,
+        IWorkflowExecutionQueryApplicationService queryService,
+        int depth = 2,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        var subgraph = await queryService.GetActorRelationSubgraphAsync(actorId, depth, take, ct);
+        return Results.Ok(subgraph);
+    }
+
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index 3b6ee76d3..3d0c34187 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -38,6 +38,7 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.AddProjectionReadModelRuntime();
         services.TryAddSingleton<IWorkflowReadModelSelectionPlanner, WorkflowReadModelSelectionPlanner>();
         RegisterWorkflowReadModelStoreSelector(services);
+        RegisterWorkflowRelationStoreSelector(services);
         services.TryAddSingleton<IProjectionClock, SystemProjectionClock>();
         services.TryAddSingleton<IWorkflowExecutionProjectionContextFactory, DefaultWorkflowExecutionProjectionContextFactory>();
         services.TryAddSingleton<WorkflowExecutionReadModelMapper>();
@@ -126,6 +127,22 @@ private static void RegisterWorkflowReadModelStoreSelector(IServiceCollection se
         }));
     }
 
+    private static void RegisterWorkflowRelationStoreSelector(IServiceCollection services)
+    {
+        services.Replace(ServiceDescriptor.Singleton<IProjectionRelationStore>(sp =>
+        {
+            var options = sp.GetRequiredService<WorkflowExecutionProjectionOptions>();
+            var selectionPlanner = sp.GetRequiredService<IWorkflowReadModelSelectionPlanner>();
+            var relationStoreFactory = sp.GetRequiredService<IProjectionRelationStoreFactory>();
+            var selectionPlan = selectionPlanner.Build(options);
+
+            return relationStoreFactory.Create(
+                sp,
+                selectionPlan.SelectionOptions,
+                selectionPlan.Requirements);
+        }));
+    }
+
     private sealed class PassthroughEventDeduplicator : IEventDeduplicator
     {
         public Task<bool> TryRecordAsync(string eventId)
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
index e33f26a17..0d7547ad6 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
@@ -16,4 +16,15 @@ Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
         string actorId,
         int take = 200,
         CancellationToken ct = default);
+
+    Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+        string actorId,
+        int take = 200,
+        CancellationToken ct = default);
+
+    Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionService.cs
index a8ce90d0c..2293dc7a7 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionService.cs
@@ -135,6 +135,34 @@ public async Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsy
         return await _queryReader.ListActorTimelineAsync(actorId, take, ct);
     }
 
+    public async Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+        string actorId,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        if (!EnableActorQueryEndpoints || string.IsNullOrWhiteSpace(actorId))
+            return [];
+
+        return await _queryReader.GetActorRelationsAsync(actorId, take, ct);
+    }
+
+    public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        if (!EnableActorQueryEndpoints || string.IsNullOrWhiteSpace(actorId))
+        {
+            return new WorkflowActorRelationSubgraph
+            {
+                RootNodeId = actorId ?? string.Empty,
+            };
+        }
+
+        return await _queryReader.GetActorRelationSubgraphAsync(actorId, depth, take, ct);
+    }
+
     private static WorkflowExecutionRuntimeLease ResolveRuntimeLease(IWorkflowExecutionProjectionLease lease) =>
         lease as WorkflowExecutionRuntimeLease
         ?? throw new InvalidOperationException("Unsupported workflow projection lease implementation.");
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
index 308373aeb..e16537641 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
@@ -6,14 +6,17 @@ namespace Aevatar.Workflow.Projection.Orchestration;
 public sealed class WorkflowProjectionQueryReader : IWorkflowProjectionQueryReader
 {
     private readonly IProjectionReadModelStore<WorkflowExecutionReport, string> _store;
+    private readonly IProjectionRelationStore _relationStore;
     private readonly WorkflowExecutionReadModelMapper _mapper;
 
     public WorkflowProjectionQueryReader(
         IProjectionReadModelStore<WorkflowExecutionReport, string> store,
-        WorkflowExecutionReadModelMapper mapper)
+        WorkflowExecutionReadModelMapper mapper,
+        IProjectionRelationStore? relationStore = null)
     {
         _store = store;
         _mapper = mapper;
+        _relationStore = relationStore ?? NoopProjectionRelationStore.Instance;
     }
 
     public async Task<WorkflowActorSnapshot?> GetActorSnapshotAsync(
@@ -51,4 +54,75 @@ public async Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsy
             .Select(_mapper.ToActorTimelineItem)
             .ToList();
     }
+
+    public async Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+        string actorId,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        var actorIdValue = actorId?.Trim() ?? "";
+        if (actorIdValue.Length == 0)
+            return [];
+
+        var boundedTake = Math.Clamp(take, 1, 1000);
+        var edges = await _relationStore.GetNeighborsAsync(
+            new ProjectionRelationQuery
+            {
+                Scope = WorkflowExecutionRelationConstants.Scope,
+                RootNodeId = actorIdValue,
+                Direction = ProjectionRelationDirection.Both,
+                Take = boundedTake,
+            },
+            ct);
+        return edges.Select(_mapper.ToActorRelationItem).ToList();
+    }
+
+    public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        var actorIdValue = actorId?.Trim() ?? "";
+        if (actorIdValue.Length == 0)
+            return new WorkflowActorRelationSubgraph();
+
+        var boundedDepth = Math.Clamp(depth, 1, 8);
+        var boundedTake = Math.Clamp(take, 1, 2000);
+        var subgraph = await _relationStore.GetSubgraphAsync(
+            new ProjectionRelationQuery
+            {
+                Scope = WorkflowExecutionRelationConstants.Scope,
+                RootNodeId = actorIdValue,
+                Direction = ProjectionRelationDirection.Both,
+                Depth = boundedDepth,
+                Take = boundedTake,
+            },
+            ct);
+        return _mapper.ToActorRelationSubgraph(actorIdValue, subgraph);
+    }
+
+    private sealed class NoopProjectionRelationStore : IProjectionRelationStore
+    {
+        public static NoopProjectionRelationStore Instance { get; } = new();
+
+        public Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken ct = default) =>
+            Task.CompletedTask;
+
+        public Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken ct = default) =>
+            Task.CompletedTask;
+
+        public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default) =>
+            Task.CompletedTask;
+
+        public Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
+            ProjectionRelationQuery query,
+            CancellationToken ct = default) =>
+            Task.FromResult<IReadOnlyList<ProjectionRelationEdge>>([]);
+
+        public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
+            ProjectionRelationQuery query,
+            CancellationToken ct = default) =>
+            Task.FromResult(new ProjectionRelationSubgraph());
+    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index 899bf7c62..6f080c448 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -14,6 +14,8 @@ internal sealed class WorkflowReadModelStartupValidationHostedService : IHostedS
     private readonly IWorkflowReadModelSelectionPlanner _selectionPlanner;
     private readonly IProjectionReadModelProviderRegistry _providerRegistry;
     private readonly IProjectionReadModelProviderSelector _providerSelector;
+    private readonly IProjectionRelationStoreProviderRegistry _relationProviderRegistry;
+    private readonly IProjectionRelationStoreProviderSelector _relationProviderSelector;
     private readonly ILogger<WorkflowReadModelStartupValidationHostedService> _logger;
 
     public WorkflowReadModelStartupValidationHostedService(
@@ -22,6 +24,8 @@ public WorkflowReadModelStartupValidationHostedService(
         IWorkflowReadModelSelectionPlanner selectionPlanner,
         IProjectionReadModelProviderRegistry providerRegistry,
         IProjectionReadModelProviderSelector providerSelector,
+        IProjectionRelationStoreProviderRegistry relationProviderRegistry,
+        IProjectionRelationStoreProviderSelector relationProviderSelector,
         ILogger<WorkflowReadModelStartupValidationHostedService>? logger = null)
     {
         _serviceProvider = serviceProvider;
@@ -29,6 +33,8 @@ public WorkflowReadModelStartupValidationHostedService(
         _selectionPlanner = selectionPlanner;
         _providerRegistry = providerRegistry;
         _providerSelector = providerSelector;
+        _relationProviderRegistry = relationProviderRegistry;
+        _relationProviderSelector = relationProviderSelector;
         _logger = logger ?? NullLogger<WorkflowReadModelStartupValidationHostedService>.Instance;
     }
 
@@ -46,6 +52,16 @@ public Task StartAsync(CancellationToken cancellationToken)
             "Workflow read-model provider startup validation passed. readModelType={ReadModelType} provider={Provider}",
             typeof(WorkflowExecutionReport).FullName,
             selected.ProviderName);
+
+        var relationRegistrations = _relationProviderRegistry.GetRegistrations(_serviceProvider);
+        var selectedRelationProvider = _relationProviderSelector.Select(
+            relationRegistrations,
+            selectionPlan.SelectionOptions,
+            selectionPlan.Requirements);
+        _logger.LogInformation(
+            "Workflow relation provider startup validation passed. relationType={RelationType} provider={Provider}",
+            typeof(ProjectionRelationNode).FullName,
+            selectedRelationProvider.ProviderName);
         return Task.CompletedTask;
     }
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
new file mode 100644
index 000000000..08b53dc90
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
@@ -0,0 +1,243 @@
+using System.Security.Cryptography;
+using System.Text;
+
+namespace Aevatar.Workflow.Projection.Projectors;
+
+public sealed class WorkflowExecutionRelationProjector
+    : IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>
+{
+    private const string UnknownToken = "unknown";
+    private readonly IProjectionRelationStore _relationStore;
+    private readonly IProjectionReadModelStore<WorkflowExecutionReport, string> _readModelStore;
+
+    public WorkflowExecutionRelationProjector(
+        IProjectionRelationStore relationStore,
+        IProjectionReadModelStore<WorkflowExecutionReport, string> readModelStore)
+    {
+        _relationStore = relationStore;
+        _readModelStore = readModelStore;
+    }
+
+    public async ValueTask InitializeAsync(WorkflowExecutionProjectionContext context, CancellationToken ct = default)
+    {
+        var runNodeId = BuildRunNodeId(context.RootActorId, context.CommandId);
+        var now = context.StartedAt;
+        await _relationStore.UpsertNodeAsync(
+            BuildActorNode(context.RootActorId, context.WorkflowName, now),
+            ct);
+        await _relationStore.UpsertNodeAsync(
+            BuildRunNode(runNodeId, context.RootActorId, context.WorkflowName, context.CommandId, context.Input, now),
+            ct);
+        await _relationStore.UpsertEdgeAsync(
+            BuildEdge(
+                context.RootActorId,
+                runNodeId,
+                WorkflowExecutionRelationConstants.RelationOwns,
+                now),
+            ct);
+    }
+
+    public ValueTask ProjectAsync(
+        WorkflowExecutionProjectionContext context,
+        EventEnvelope envelope,
+        CancellationToken ct = default)
+    {
+        _ = context;
+        _ = envelope;
+        _ = ct;
+        return ValueTask.CompletedTask;
+    }
+
+    public async ValueTask CompleteAsync(
+        WorkflowExecutionProjectionContext context,
+        IReadOnlyList<WorkflowExecutionTopologyEdge> topology,
+        CancellationToken ct = default)
+    {
+        var report = await _readModelStore.GetAsync(context.RootActorId, ct);
+        var completedAt = report?.EndedAt ?? DateTimeOffset.UtcNow;
+        var runNodeId = BuildRunNodeId(context.RootActorId, context.CommandId);
+
+        await _relationStore.UpsertNodeAsync(
+            BuildActorNode(context.RootActorId, context.WorkflowName, completedAt),
+            ct);
+        await _relationStore.UpsertNodeAsync(
+            BuildRunNode(
+                runNodeId,
+                context.RootActorId,
+                context.WorkflowName,
+                context.CommandId,
+                context.Input,
+                completedAt),
+            ct);
+        await _relationStore.UpsertEdgeAsync(
+            BuildEdge(
+                context.RootActorId,
+                runNodeId,
+                WorkflowExecutionRelationConstants.RelationOwns,
+                completedAt),
+            ct);
+
+        foreach (var edge in topology)
+        {
+            var parentNodeId = NormalizeToken(edge.Parent);
+            var childNodeId = NormalizeToken(edge.Child);
+            if (parentNodeId.Length == 0 || childNodeId.Length == 0)
+                continue;
+
+            await _relationStore.UpsertNodeAsync(
+                BuildActorNode(parentNodeId, context.WorkflowName, completedAt),
+                ct);
+            await _relationStore.UpsertNodeAsync(
+                BuildActorNode(childNodeId, context.WorkflowName, completedAt),
+                ct);
+            await _relationStore.UpsertEdgeAsync(
+                BuildEdge(
+                    parentNodeId,
+                    childNodeId,
+                    WorkflowExecutionRelationConstants.RelationChildOf,
+                    completedAt),
+                ct);
+        }
+
+        if (report == null || report.Steps.Count == 0)
+            return;
+
+        foreach (var step in report.Steps)
+        {
+            var stepId = NormalizeToken(step.StepId);
+            if (stepId.Length == 0)
+                continue;
+
+            var stepNodeId = BuildStepNodeId(context.RootActorId, stepId);
+            var stepUpdatedAt = step.CompletedAt ?? step.RequestedAt ?? completedAt;
+            await _relationStore.UpsertNodeAsync(
+                BuildStepNode(
+                    stepNodeId,
+                    context.RootActorId,
+                    step,
+                    stepUpdatedAt),
+                ct);
+            await _relationStore.UpsertEdgeAsync(
+                BuildEdge(
+                    runNodeId,
+                    stepNodeId,
+                    WorkflowExecutionRelationConstants.RelationContainsStep,
+                    stepUpdatedAt),
+                ct);
+        }
+    }
+
+    private static ProjectionRelationNode BuildActorNode(
+        string actorId,
+        string workflowName,
+        DateTimeOffset updatedAt)
+    {
+        return new ProjectionRelationNode
+        {
+            Scope = WorkflowExecutionRelationConstants.Scope,
+            NodeId = NormalizeToken(actorId),
+            NodeType = WorkflowExecutionRelationConstants.ActorNodeType,
+            Properties = new Dictionary<string, string>(StringComparer.Ordinal)
+            {
+                ["workflowName"] = workflowName ?? "",
+            },
+            UpdatedAt = updatedAt,
+        };
+    }
+
+    private static ProjectionRelationNode BuildRunNode(
+        string runNodeId,
+        string rootActorId,
+        string workflowName,
+        string commandId,
+        string input,
+        DateTimeOffset updatedAt)
+    {
+        return new ProjectionRelationNode
+        {
+            Scope = WorkflowExecutionRelationConstants.Scope,
+            NodeId = runNodeId,
+            NodeType = WorkflowExecutionRelationConstants.RunNodeType,
+            Properties = new Dictionary<string, string>(StringComparer.Ordinal)
+            {
+                ["rootActorId"] = NormalizeToken(rootActorId),
+                ["workflowName"] = workflowName ?? "",
+                ["commandId"] = NormalizeToken(commandId),
+                ["input"] = input ?? "",
+            },
+            UpdatedAt = updatedAt,
+        };
+    }
+
+    private static ProjectionRelationNode BuildStepNode(
+        string stepNodeId,
+        string rootActorId,
+        WorkflowExecutionStepTrace step,
+        DateTimeOffset updatedAt)
+    {
+        return new ProjectionRelationNode
+        {
+            Scope = WorkflowExecutionRelationConstants.Scope,
+            NodeId = stepNodeId,
+            NodeType = WorkflowExecutionRelationConstants.StepNodeType,
+            Properties = new Dictionary<string, string>(StringComparer.Ordinal)
+            {
+                ["rootActorId"] = NormalizeToken(rootActorId),
+                ["stepId"] = NormalizeToken(step.StepId),
+                ["stepType"] = step.StepType ?? "",
+                ["targetRole"] = step.TargetRole ?? "",
+                ["workerId"] = step.WorkerId ?? "",
+                ["success"] = step.Success?.ToString() ?? "",
+            },
+            UpdatedAt = updatedAt,
+        };
+    }
+
+    private static ProjectionRelationEdge BuildEdge(
+        string fromNodeId,
+        string toNodeId,
+        string relationType,
+        DateTimeOffset updatedAt)
+    {
+        var normalizedFromNodeId = NormalizeToken(fromNodeId);
+        var normalizedToNodeId = NormalizeToken(toNodeId);
+        var normalizedRelationType = NormalizeToken(relationType);
+        return new ProjectionRelationEdge
+        {
+            Scope = WorkflowExecutionRelationConstants.Scope,
+            EdgeId = BuildEdgeId(normalizedRelationType, normalizedFromNodeId, normalizedToNodeId),
+            FromNodeId = normalizedFromNodeId,
+            ToNodeId = normalizedToNodeId,
+            RelationType = normalizedRelationType,
+            UpdatedAt = updatedAt,
+            Properties = new Dictionary<string, string>(StringComparer.Ordinal),
+        };
+    }
+
+    private static string BuildRunNodeId(string rootActorId, string commandId)
+    {
+        var normalizedRootActorId = NormalizeToken(rootActorId);
+        var normalizedCommandId = NormalizeToken(commandId);
+        return $"run:{normalizedRootActorId}:{normalizedCommandId}";
+    }
+
+    private static string BuildStepNodeId(string rootActorId, string stepId)
+    {
+        var normalizedRootActorId = NormalizeToken(rootActorId);
+        var normalizedStepId = NormalizeToken(stepId);
+        return $"step:{normalizedRootActorId}:{normalizedStepId}";
+    }
+
+    private static string BuildEdgeId(string relationType, string fromNodeId, string toNodeId)
+    {
+        var payload = $"{relationType}|{fromNodeId}|{toNodeId}";
+        var hash = SHA256.HashData(Encoding.UTF8.GetBytes(payload));
+        return $"{relationType}:{Convert.ToHexString(hash.AsSpan(0, 8))}";
+    }
+
+    private static string NormalizeToken(string token)
+    {
+        var normalized = token?.Trim() ?? "";
+        return normalized.Length == 0 ? UnknownToken : normalized;
+    }
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs
index 3f0cc9fb0..8d21181e0 100644
--- a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs
@@ -38,4 +38,40 @@ public WorkflowActorTimelineItem ToActorTimelineItem(WorkflowExecutionTimelineEv
             Data = new Dictionary<string, string>(source.Data, StringComparer.Ordinal),
         };
     }
+
+    public WorkflowActorRelationNode ToActorRelationNode(ProjectionRelationNode source)
+    {
+        return new WorkflowActorRelationNode
+        {
+            NodeId = source.NodeId,
+            NodeType = source.NodeType,
+            UpdatedAt = source.UpdatedAt,
+            Properties = new Dictionary<string, string>(source.Properties, StringComparer.Ordinal),
+        };
+    }
+
+    public WorkflowActorRelationItem ToActorRelationItem(ProjectionRelationEdge source)
+    {
+        return new WorkflowActorRelationItem
+        {
+            EdgeId = source.EdgeId,
+            FromNodeId = source.FromNodeId,
+            ToNodeId = source.ToNodeId,
+            RelationType = source.RelationType,
+            UpdatedAt = source.UpdatedAt,
+            Properties = new Dictionary<string, string>(source.Properties, StringComparer.Ordinal),
+        };
+    }
+
+    public WorkflowActorRelationSubgraph ToActorRelationSubgraph(
+        string rootNodeId,
+        ProjectionRelationSubgraph source)
+    {
+        return new WorkflowActorRelationSubgraph
+        {
+            RootNodeId = rootNodeId,
+            Nodes = source.Nodes.Select(ToActorRelationNode).ToList(),
+            Edges = source.Edges.Select(ToActorRelationItem).ToList(),
+        };
+    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionRelationConstants.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionRelationConstants.cs
new file mode 100644
index 000000000..be34a7cf7
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionRelationConstants.cs
@@ -0,0 +1,18 @@
+namespace Aevatar.Workflow.Projection.ReadModels;
+
+public static class WorkflowExecutionRelationConstants
+{
+    public const string Scope = "workflow-execution-relations";
+
+    public const string ActorNodeType = "Actor";
+
+    public const string RunNodeType = "WorkflowRun";
+
+    public const string StepNodeType = "WorkflowStep";
+
+    public const string RelationOwns = "OWNS";
+
+    public const string RelationContainsStep = "CONTAINS_STEP";
+
+    public const string RelationChildOf = "CHILD_OF";
+}
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index b9c78feba..d34135d77 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -28,6 +28,7 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
             keyFormatter: key => key,
             listSortSelector: report => report.StartedAt,
             listTakeMax: 200);
+        services.AddInMemoryRelationStoreRegistration();
 
         services.AddElasticsearchReadModelStoreRegistration<WorkflowExecutionReport, string>(
             optionsFactory: _ =>
@@ -39,6 +40,7 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
             indexScope: "workflow-execution-reports",
             keySelector: report => report.RootActorId,
             keyFormatter: key => key);
+        services.AddElasticsearchRelationStoreRegistration();
 
         services.AddNeo4jReadModelStoreRegistration<WorkflowExecutionReport, string>(
             optionsFactory: _ =>
@@ -50,6 +52,14 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
             scope: "workflow-execution-reports",
             keySelector: report => report.RootActorId,
             keyFormatter: key => key);
+        services.AddNeo4jRelationStoreRegistration(
+            optionsFactory: _ =>
+            {
+                var providerOptions = new Neo4jProjectionRelationStoreOptions();
+                configuration.GetSection("Projection:ReadModel:Providers:Neo4j").Bind(providerOptions);
+                return providerOptions;
+            },
+            scope: WorkflowExecutionRelationConstants.Scope);
 
         return services;
     }
diff --git a/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs b/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
index 404262be4..580184f85 100644
--- a/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
+++ b/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
@@ -292,6 +292,85 @@ public async Task GetActorSnapshotAsync_ShouldReturnProjectionPortResult()
         detail.LastCommandId.Should().Be("cmd-1");
         detail.TotalSteps.Should().Be(3);
     }
+
+    [Fact]
+    public async Task ListActorRelationsAsync_ShouldReturnProjectionPortResult()
+    {
+        var relation = new WorkflowActorRelationItem
+        {
+            EdgeId = "edge-1",
+            FromNodeId = "actor-1",
+            ToNodeId = "actor-2",
+            RelationType = "CHILD_OF",
+            UpdatedAt = DateTimeOffset.UtcNow,
+        };
+        var projection = new FakeProjectionService
+        {
+            EnableActorQueryEndpointsValue = true,
+            RelationsByActorId = new Dictionary<string, IReadOnlyList<WorkflowActorRelationItem>>(StringComparer.Ordinal)
+            {
+                ["actor-1"] = [relation],
+            },
+        };
+        var queryService = new WorkflowExecutionQueryApplicationService(
+            new WorkflowDefinitionRegistry(),
+            projection);
+
+        var items = await queryService.ListActorRelationsAsync("actor-1", ct: CancellationToken.None);
+
+        items.Should().ContainSingle();
+        items[0].EdgeId.Should().Be("edge-1");
+        items[0].RelationType.Should().Be("CHILD_OF");
+    }
+
+    [Fact]
+    public async Task GetActorRelationSubgraphAsync_ShouldReturnProjectionPortResult()
+    {
+        var subgraph = new WorkflowActorRelationSubgraph
+        {
+            RootNodeId = "actor-1",
+            Nodes =
+            [
+                new WorkflowActorRelationNode
+                {
+                    NodeId = "actor-1",
+                    NodeType = "Actor",
+                },
+                new WorkflowActorRelationNode
+                {
+                    NodeId = "actor-2",
+                    NodeType = "Actor",
+                },
+            ],
+            Edges =
+            [
+                new WorkflowActorRelationItem
+                {
+                    EdgeId = "edge-1",
+                    FromNodeId = "actor-1",
+                    ToNodeId = "actor-2",
+                    RelationType = "CHILD_OF",
+                },
+            ],
+        };
+        var projection = new FakeProjectionService
+        {
+            EnableActorQueryEndpointsValue = true,
+            SubgraphByActorId = new Dictionary<string, WorkflowActorRelationSubgraph>(StringComparer.Ordinal)
+            {
+                ["actor-1"] = subgraph,
+            },
+        };
+        var queryService = new WorkflowExecutionQueryApplicationService(
+            new WorkflowDefinitionRegistry(),
+            projection);
+
+        var item = await queryService.GetActorRelationSubgraphAsync("actor-1", ct: CancellationToken.None);
+
+        item.RootNodeId.Should().Be("actor-1");
+        item.Nodes.Should().HaveCount(2);
+        item.Edges.Should().ContainSingle(x => x.EdgeId == "edge-1");
+    }
 }
 
 public class ActorRuntimeWorkflowExecutionTopologyResolverTests
@@ -327,6 +406,8 @@ internal sealed class FakeProjectionService : IWorkflowExecutionProjectionPort
     public IWorkflowExecutionProjectionLease? LastLease { get; private set; }
     public Dictionary<string, WorkflowActorSnapshot> SnapshotByActorId { get; set; } = new(StringComparer.Ordinal);
     public Dictionary<string, IReadOnlyList<WorkflowActorTimelineItem>> TimelineByActorId { get; set; } = new(StringComparer.Ordinal);
+    public Dictionary<string, IReadOnlyList<WorkflowActorRelationItem>> RelationsByActorId { get; set; } = new(StringComparer.Ordinal);
+    public Dictionary<string, WorkflowActorRelationSubgraph> SubgraphByActorId { get; set; } = new(StringComparer.Ordinal);
     public IReadOnlyList<WorkflowActorSnapshot> SnapshotList { get; set; } = [];
 
     public bool EnableActorQueryEndpoints => EnableActorQueryEndpointsValue;
@@ -389,6 +470,38 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
         return Task.FromResult<IReadOnlyList<WorkflowActorTimelineItem>>(timeline.Take(Math.Max(1, take)).ToList());
     }
 
+    public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+        string actorId,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        _ = ct;
+        if (!RelationsByActorId.TryGetValue(actorId, out var relations))
+            relations = [];
+
+        return Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>(relations.Take(Math.Max(1, take)).ToList());
+    }
+
+    public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        _ = depth;
+        _ = take;
+        _ = ct;
+        if (!SubgraphByActorId.TryGetValue(actorId, out var subgraph))
+        {
+            subgraph = new WorkflowActorRelationSubgraph
+            {
+                RootNodeId = actorId,
+            };
+        }
+
+        return Task.FromResult(subgraph);
+    }
+
     private sealed record FakeProjectionLease(string ActorId, string CommandId) : IWorkflowExecutionProjectionLease;
 }
 
diff --git a/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs b/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs
index 239a49279..b2b8c0963 100644
--- a/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs
+++ b/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs
@@ -357,6 +357,32 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(str
             ct.ThrowIfCancellationRequested();
             return Task.FromResult<IReadOnlyList<WorkflowActorTimelineItem>>([]);
         }
+
+        public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+            string actorId,
+            int take = 200,
+            CancellationToken ct = default)
+        {
+            _ = actorId;
+            _ = take;
+            ct.ThrowIfCancellationRequested();
+            return Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>([]);
+        }
+
+        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+            string actorId,
+            int depth = 2,
+            int take = 200,
+            CancellationToken ct = default)
+        {
+            _ = depth;
+            _ = take;
+            ct.ThrowIfCancellationRequested();
+            return Task.FromResult(new WorkflowActorRelationSubgraph
+            {
+                RootNodeId = actorId,
+            });
+        }
     }
 
     private sealed class ComponentEnvelopeFactory : ICommandEnvelopeFactory<WorkflowChatRunRequest>
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
index 068249ead..0f4196afa 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
@@ -39,6 +39,8 @@ public void MapWorkflowCapabilityEndpoints_ShouldRegisterCoreRoutes()
         routePatterns.Should().Contain("/api/ws/chat");
         routePatterns.Should().Contain("/api/actors/{actorId}");
         routePatterns.Should().Contain("/api/actors/{actorId}/timeline");
+        routePatterns.Should().Contain("/api/actors/{actorId}/relations");
+        routePatterns.Should().Contain("/api/actors/{actorId}/relation-subgraph");
     }
 
     [Fact]
@@ -268,6 +270,84 @@ public async Task ListActorTimeline_ShouldReturnTimelineItems()
         doc.RootElement[0].GetProperty("stage").GetString().Should().Be("workflow.start");
     }
 
+    [Fact]
+    public async Task ListActorRelations_ShouldReturnRelationItems()
+    {
+        var queryService = new FakeQueryService
+        {
+            ActorQueryEnabledValue = true,
+            RelationsByActorId = new Dictionary<string, IReadOnlyList<WorkflowActorRelationItem>>(StringComparer.Ordinal)
+            {
+                ["actor-1"] =
+                [
+                    new WorkflowActorRelationItem
+                    {
+                        EdgeId = "edge-1",
+                        FromNodeId = "actor-1",
+                        ToNodeId = "actor-2",
+                        RelationType = "CHILD_OF",
+                    },
+                ],
+            },
+        };
+
+        var result = await ChatQueryEndpoints.ListActorRelations("actor-1", queryService, 50, CancellationToken.None);
+        var (statusCode, body) = await ExecuteResultAsync(result);
+        using var doc = JsonDocument.Parse(body);
+
+        statusCode.Should().Be(StatusCodes.Status200OK);
+        doc.RootElement.GetArrayLength().Should().Be(1);
+        doc.RootElement[0].GetProperty("edgeId").GetString().Should().Be("edge-1");
+    }
+
+    [Fact]
+    public async Task GetActorRelationSubgraph_ShouldReturnSubgraph()
+    {
+        var queryService = new FakeQueryService
+        {
+            ActorQueryEnabledValue = true,
+            SubgraphByActorId = new Dictionary<string, WorkflowActorRelationSubgraph>(StringComparer.Ordinal)
+            {
+                ["actor-1"] = new WorkflowActorRelationSubgraph
+                {
+                    RootNodeId = "actor-1",
+                    Nodes =
+                    [
+                        new WorkflowActorRelationNode
+                        {
+                            NodeId = "actor-1",
+                            NodeType = "Actor",
+                        },
+                        new WorkflowActorRelationNode
+                        {
+                            NodeId = "actor-2",
+                            NodeType = "Actor",
+                        },
+                    ],
+                    Edges =
+                    [
+                        new WorkflowActorRelationItem
+                        {
+                            EdgeId = "edge-1",
+                            FromNodeId = "actor-1",
+                            ToNodeId = "actor-2",
+                            RelationType = "CHILD_OF",
+                        },
+                    ],
+                },
+            },
+        };
+
+        var result = await ChatQueryEndpoints.GetActorRelationSubgraph("actor-1", queryService, 2, 50, CancellationToken.None);
+        var (statusCode, body) = await ExecuteResultAsync(result);
+        using var doc = JsonDocument.Parse(body);
+
+        statusCode.Should().Be(StatusCodes.Status200OK);
+        doc.RootElement.GetProperty("rootNodeId").GetString().Should().Be("actor-1");
+        doc.RootElement.GetProperty("nodes").GetArrayLength().Should().Be(2);
+        doc.RootElement.GetProperty("edges").GetArrayLength().Should().Be(1);
+    }
+
     private static DefaultHttpContext CreateHttpContext()
     {
         return new DefaultHttpContext
@@ -332,6 +412,8 @@ private sealed class FakeQueryService :
         public IReadOnlyList<string> Workflows { get; set; } = [];
         public Dictionary<string, WorkflowActorSnapshot> SnapshotByActorId { get; set; } = new(StringComparer.Ordinal);
         public Dictionary<string, IReadOnlyList<WorkflowActorTimelineItem>> TimelineByActorId { get; set; } = new(StringComparer.Ordinal);
+        public Dictionary<string, IReadOnlyList<WorkflowActorRelationItem>> RelationsByActorId { get; set; } = new(StringComparer.Ordinal);
+        public Dictionary<string, WorkflowActorRelationSubgraph> SubgraphByActorId { get; set; } = new(StringComparer.Ordinal);
 
         public bool ActorQueryEnabled => ActorQueryEnabledValue;
 
@@ -353,6 +435,36 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(str
 
             return Task.FromResult<IReadOnlyList<WorkflowActorTimelineItem>>(items.Take(Math.Max(1, take)).ToList());
         }
+
+        public Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
+            string actorId,
+            int take = 200,
+            CancellationToken ct = default)
+        {
+            if (!RelationsByActorId.TryGetValue(actorId, out var items))
+                items = [];
+
+            return Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>(items.Take(Math.Max(1, take)).ToList());
+        }
+
+        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+            string actorId,
+            int depth = 2,
+            int take = 200,
+            CancellationToken ct = default)
+        {
+            _ = depth;
+            _ = take;
+            if (!SubgraphByActorId.TryGetValue(actorId, out var item))
+            {
+                item = new WorkflowActorRelationSubgraph
+                {
+                    RootNodeId = actorId,
+                };
+            }
+
+            return Task.FromResult(item);
+        }
     }
 
     private static CommandExecutionResult<WorkflowChatRunStarted, WorkflowChatRunFinalizeResult, WorkflowChatRunStartError> ToCoreResult(
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
index 7697aa284..aa08858fd 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
@@ -189,6 +189,12 @@ private sealed class FakeQueryService : IWorkflowExecutionQueryApplicationServic
             return Task.FromResult<WorkflowActorSnapshot?>(Snapshot);
         }
         public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(string actorId, int take = 200, CancellationToken ct = default) => Task.FromResult<IReadOnlyList<WorkflowActorTimelineItem>>([]);
+        public Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(string actorId, int take = 200, CancellationToken ct = default) => Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>([]);
+        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(string actorId, int depth = 2, int take = 200, CancellationToken ct = default) =>
+            Task.FromResult(new WorkflowActorRelationSubgraph
+            {
+                RootNodeId = actorId,
+            });
     }
 
     private sealed class FakeWebSocket : WebSocket
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
index fd66fb26d..91bd4236d 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
@@ -244,6 +244,22 @@ public Task<IReadOnlyList<WorkflowAgentSummary>> ListAgentsAsync(CancellationTok
 
         public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(string actorId, int take = 200, CancellationToken ct = default) =>
             Task.FromResult<IReadOnlyList<WorkflowActorTimelineItem>>([]);
+
+        public Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
+            string actorId,
+            int take = 200,
+            CancellationToken ct = default) =>
+            Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>([]);
+
+        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+            string actorId,
+            int depth = 2,
+            int take = 200,
+            CancellationToken ct = default) =>
+            Task.FromResult(new WorkflowActorRelationSubgraph
+            {
+                RootNodeId = actorId,
+            });
     }
 
     private sealed class FakeWebSocketFeature : IHttpWebSocketFeature
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 9ad85d5ca..0ba3c4b76 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -78,8 +78,10 @@ public void AddWorkflowExecutionProjectionCQRS_ShouldUseInMemoryProviderByDefaul
 
         using var provider = services.BuildServiceProvider();
         var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        var relationStore = provider.GetRequiredService<IProjectionRelationStore>();
 
         store.Should().BeOfType<InMemoryProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        relationStore.Should().BeOfType<InMemoryProjectionRelationStore>();
         var metadata = store.Should().BeAssignableTo<IProjectionReadModelStoreProviderMetadata>().Subject;
         metadata.ProviderCapabilities.ProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
     }
@@ -95,8 +97,10 @@ public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchConfigured_Shoul
 
         using var provider = services.BuildServiceProvider();
         var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        var relationStore = provider.GetRequiredService<IProjectionRelationStore>();
 
         store.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        relationStore.Should().BeOfType<ElasticsearchProjectionRelationStore>();
         var metadata = store.Should().BeAssignableTo<IProjectionReadModelStoreProviderMetadata>().Subject;
         metadata.ProviderCapabilities.SupportsIndexing.Should().BeTrue();
         metadata.ProviderCapabilities.IndexKinds.Should().Contain(ProjectionReadModelIndexKind.Document);
@@ -113,8 +117,10 @@ public async Task AddWorkflowExecutionProjectionCQRS_WhenNeo4jConfigured_ShouldR
 
         await using var provider = services.BuildServiceProvider();
         var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        var relationStore = provider.GetRequiredService<IProjectionRelationStore>();
 
         store.Should().BeOfType<Neo4jProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        relationStore.Should().BeOfType<Neo4jProjectionRelationStore>();
         var metadata = store.Should().BeAssignableTo<IProjectionReadModelStoreProviderMetadata>().Subject;
         metadata.ProviderCapabilities.SupportsIndexing.Should().BeTrue();
         metadata.ProviderCapabilities.IndexKinds.Should().Contain(ProjectionReadModelIndexKind.Graph);
@@ -398,6 +404,7 @@ private static void RegisterElasticsearchProvider(IServiceCollection services)
             indexScope: "workflow-execution-reports",
             keySelector: report => report.RootActorId,
             keyFormatter: key => key);
+        services.AddElasticsearchRelationStoreRegistration();
     }
 
     private static void RegisterInMemoryProvider(IServiceCollection services)
@@ -406,6 +413,7 @@ private static void RegisterInMemoryProvider(IServiceCollection services)
             keySelector: report => report.RootActorId,
             keyFormatter: key => key,
             listSortSelector: report => report.StartedAt);
+        services.AddInMemoryRelationStoreRegistration();
     }
 
     private static void RegisterNeo4jProvider(IServiceCollection services)
@@ -421,6 +429,15 @@ private static void RegisterNeo4jProvider(IServiceCollection services)
             scope: "workflow-execution-reports",
             keySelector: report => report.RootActorId,
             keyFormatter: key => key);
+        services.AddNeo4jRelationStoreRegistration(
+            optionsFactory: _ => new Neo4jProjectionRelationStoreOptions
+            {
+                Uri = "bolt://localhost:7687",
+                Username = "neo4j",
+                Password = "test",
+                AutoCreateConstraints = false,
+            },
+            scope: WorkflowExecutionRelationConstants.Scope);
     }
 
     public sealed class CustomChatRequestReducer : WorkflowExecutionEventReducerBase<ChatRequestEvent>
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index 4a6a6bfa3..9784e8d86 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -69,6 +69,11 @@ public void AddWorkflowCapabilityWithAIDefaults_ShouldRegisterReadModelProviders
             .Where(x => x.ServiceType == typeof(IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>))
             .ToList();
         providerRegistrations.Should().HaveCount(3);
+
+        var relationRegistrations = builder.Services
+            .Where(x => x.ServiceType == typeof(IProjectionRelationStoreRegistration))
+            .ToList();
+        relationRegistrations.Should().HaveCount(3);
     }
 
     [Fact]
@@ -84,5 +89,10 @@ public void AddWorkflowProjectionReadModelProviders_MultipleCalls_ShouldBeIdempo
             .Where(x => x.ServiceType == typeof(IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>))
             .ToList();
         providerRegistrations.Should().HaveCount(3);
+
+        var relationRegistrations = services
+            .Where(x => x.ServiceType == typeof(IProjectionRelationStoreRegistration))
+            .ToList();
+        relationRegistrations.Should().HaveCount(3);
     }
 }

From cdebcbc2d0904e79b53afea5daf4d332c1e6b2b7 Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Tue, 24 Feb 2026 15:40:11 +0800
Subject: [PATCH 21/46] Refactor ReadModel Graph Relations and Enhance
 Projection Architecture

- Completed Phase 2 of the ReadModel graph relations refactor, implementing breaking changes to improve the architecture.
- Introduced `IProjectionStoreStartupValidator` for enhanced validation of read model and relation providers during startup.
- Split `IWorkflowExecutionProjectionPort` into `IWorkflowExecutionProjectionLifecyclePort` and `IWorkflowExecutionProjectionQueryPort`, clarifying responsibilities and improving maintainability.
- Updated dependency injection to register new lifecycle and query services, ensuring proper integration with the refactored architecture.
- Enhanced documentation to reflect changes in the projection architecture and the new validation mechanisms, providing clearer guidance for future development.
---
 docs/CQRS_ARCHITECTURE.md                     |   5 +-
 docs/FOUNDATION.md                            |   3 +-
 ...odel-graph-relations-refactor-blueprint.md |  84 ++++++--
 .../IProjectionPortActivationService.cs       |  14 ++
 .../IProjectionPortLiveSinkForwarder.cs       |  13 ++
 .../IProjectionPortReleaseService.cs          |  11 +
 .../IProjectionPortSinkSubscriptionManager.cs |  18 ++
 .../IProjectionStoreStartupValidator.cs       |  15 ++
 .../ProjectionReadModelRuntimeOptions.cs      |   2 +
 .../README.md                                 |   1 +
 .../ProjectionLifecyclePortServiceBase.cs     | 102 +++++++++
 .../ProjectionQueryPortServiceBase.cs         |  96 +++++++++
 src/Aevatar.CQRS.Projection.Core/README.md    |   2 +
 .../ServiceCollectionExtensions.cs            |   1 +
 .../ProjectionStoreStartupValidator.cs        |  48 +++++
 ...orkflowExecutionProjectionLifecyclePort.cs |  29 +++
 ... IWorkflowExecutionProjectionQueryPort.cs} |  26 +--
 ...orkflowExecutionQueryApplicationService.cs |   4 +-
 .../Aevatar.Workflow.Application/README.md    |   2 +-
 .../Runs/WorkflowRunContextFactory.cs         |   4 +-
 .../Runs/WorkflowRunResourceFinalizer.cs      |   4 +-
 ...owCapabilityServiceCollectionExtensions.cs |   2 +
 .../WorkflowExecutionProjectionOptions.cs     |  10 +
 .../ServiceCollectionExtensions.cs            |  15 +-
 .../IWorkflowProjectionActivationService.cs   |  11 +-
 .../IWorkflowProjectionLiveSinkForwarder.cs   |   9 +-
 .../IWorkflowProjectionReleaseService.cs      |   8 +-
 ...rkflowProjectionSinkSubscriptionManager.cs |  13 +-
 .../IWorkflowReadModelSelectionPlanner.cs     |   6 +-
 ...flowExecutionProjectionLifecycleService.cs |  62 ++++++
 ...WorkflowExecutionProjectionQueryService.cs |  89 ++++++++
 .../WorkflowExecutionProjectionService.cs     | 169 ---------------
 .../WorkflowProjectionQueryReader.cs          |  28 +--
 .../WorkflowReadModelSelectionPlanner.cs      |  37 +++-
 ...ReadModelStartupValidationHostedService.cs |  54 +++--
 .../WorkflowExecutionRelationProjector.cs     | 198 ++++++++++++++----
 .../Aevatar.Workflow.Projection/README.md     |  15 +-
 src/workflow/README.md                        |   8 +-
 .../WorkflowApplicationLayerTests.cs          |   4 +-
 .../WorkflowRunOrchestrationComponentTests.cs |   2 +-
 ...lowExecutionProjectionRegistrationTests.cs |  29 ++-
 ...WorkflowExecutionProjectionServiceTests.cs | 116 ++++++++--
 ...WorkflowExecutionRelationProjectorTests.cs | 142 +++++++++++++
 ...owProjectionOrchestrationComponentTests.cs |   5 +-
 .../WorkflowReadModelSelectionPlannerTests.cs |  29 ++-
 tools/ci/architecture_guards.sh               |  27 ++-
 46 files changed, 1171 insertions(+), 401 deletions(-)
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortActivationService.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortLiveSinkForwarder.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortReleaseService.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortSinkSubscriptionManager.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreStartupValidator.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionLifecyclePortServiceBase.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionQueryPortServiceBase.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionLifecyclePort.cs
 rename src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/{IWorkflowExecutionProjectionPort.cs => IWorkflowExecutionProjectionQueryPort.cs} (54%)
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionLifecycleService.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionService.cs
 create mode 100644 test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs

diff --git a/docs/CQRS_ARCHITECTURE.md b/docs/CQRS_ARCHITECTURE.md
index 3c8a4b54d..4bce64725 100644
--- a/docs/CQRS_ARCHITECTURE.md
+++ b/docs/CQRS_ARCHITECTURE.md
@@ -55,7 +55,10 @@ flowchart LR
    `WorkflowRunCompletionPolicy`（终态） +  
    `WorkflowRunResourceFinalizer`（清理）。
 2. Projection 端口实现已拆分为：
-   `WorkflowExecutionProjectionService`（facade） +  
+   `WorkflowExecutionProjectionLifecycleService`（生命周期端口） +  
+   `WorkflowExecutionProjectionQueryService`（查询端口） +  
+   `ProjectionLifecyclePortServiceBase<>`（通用基类） +  
+   `ProjectionQueryPortServiceBase<>`（通用基类） +  
    `WorkflowProjectionActivationService`（激活） +  
    `WorkflowProjectionReleaseService`（释放） +  
    `WorkflowProjectionLeaseManager`（ownership） +  
diff --git a/docs/FOUNDATION.md b/docs/FOUNDATION.md
index c8e7ca85b..f53f859c3 100644
--- a/docs/FOUNDATION.md
+++ b/docs/FOUNDATION.md
@@ -131,7 +131,8 @@ Agent 收到 `EventEnvelope` 后，会将两类处理器合并执行：
   - `Aevatar.Foundation.Projection`：提供读模型最小公共字段（`RootActorId/CommandId/StateVersion/LastEventId`）与通用能力接口（Timeline / RoleReplies）
   - `Aevatar.AI.Projection`：提供 AI 通用事件 reducer（`TextMessage*` / `Tool*`）和 `IProjectionEventApplier<,,>` 扩展模式
 - **WorkflowExecution 业务扩展** 在 `Aevatar.Workflow.Projection`：
-  - `WorkflowExecutionProjectionService` 作为应用端口 facade（仅流程编排）
+  - `WorkflowExecutionProjectionLifecycleService`（生命周期端口）与 `WorkflowExecutionProjectionQueryService`（查询端口）
+  - 两者复用 `Aevatar.CQRS.Projection.Core` 的通用基类：`ProjectionLifecyclePortServiceBase<>` / `ProjectionQueryPortServiceBase<>`
   - `WorkflowProjectionActivationService` 负责 projection 启动与上下文激活
   - `WorkflowProjectionReleaseService` 负责 idle 检测与 stop/release
   - `WorkflowProjectionLeaseManager` 负责 ownership acquire/release
diff --git a/docs/architecture/readmodel-graph-relations-refactor-blueprint.md b/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
index 9af5ddb27..471528212 100644
--- a/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
+++ b/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
@@ -1,8 +1,8 @@
 # ReadModel 图关系能力重构文档（实施版）
 
 ## 1. 文档信息
-- 状态：Implemented（当前分支已落地）
-- 版本：v2.0
+- 状态：Phase2 Refactor Implemented（Breaking）
+- 版本：v3.0
 - 日期：2026-02-24
 - 分支：`feat/readmodel-graph-relations`
 - 适用目录：`src/`、`test/`、`docs/architecture/`
@@ -62,6 +62,11 @@ flowchart LR
     J --> L
 ```
 
+### 5.1 说明
+1. 上图描述的是当前已落地主链路（Phase1 + Phase2）。
+2. Phase2 已完成：Projection 端口拆分为 Lifecycle/Query，ReadModel/Relation provider 配置与校验解耦。
+3. 运行时启动校验抽象已下沉到 CQRS Runtime：`IProjectionStoreStartupValidator`。
+
 ## 6. 抽象层重构内容
 
 ### 6.1 新增关系契约
@@ -167,12 +172,14 @@ flowchart LR
 扩展：
 1. `IWorkflowProjectionQueryReader`
 2. `WorkflowProjectionQueryReader`
-3. `IWorkflowExecutionProjectionPort`
-4. `WorkflowExecutionProjectionService`
-5. `IWorkflowExecutionQueryApplicationService`
-6. `WorkflowExecutionQueryApplicationService`
-7. `WorkflowExecutionReadModelMapper`
-8. `WorkflowExecutionQueryModels`
+3. `IWorkflowExecutionProjectionLifecyclePort`
+4. `IWorkflowExecutionProjectionQueryPort`
+5. `WorkflowExecutionProjectionLifecycleService`
+6. `WorkflowExecutionProjectionQueryService`
+7. `IWorkflowExecutionQueryApplicationService`
+8. `WorkflowExecutionQueryApplicationService`
+9. `WorkflowExecutionReadModelMapper`
+10. `WorkflowExecutionQueryModels`
 
 新增：
 1. `WorkflowExecutionRelationConstants`
@@ -180,7 +187,7 @@ flowchart LR
 ### 9.3 Workflow DI 选择器接入
 文件：`src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`
 1. 在既有 ReadModel selector 基础上增加 Relation selector。
-2. `IProjectionRelationStore` 使用同一 selection plan（provider + requirements）。
+2. `IProjectionRelationStore` 使用独立 relation selection（`RelationSelectionOptions + RelationRequirements`）。
 
 ### 9.4 启动期 fail-fast 校验增强
 文件：`WorkflowReadModelStartupValidationHostedService.cs`
@@ -223,14 +230,19 @@ flowchart LR
 | Neo4j | Graph | Yes | Yes | 生产图关系能力 |
 
 ## 13. 迁移与上线建议（最佳实践）
-1. Phase 1：合并结构改造（本次）
+1. Phase 1：合并结构改造（已完成）
 - 接口、Runtime、Provider、Workflow API 全链路到位。
-2. Phase 2：关系数据回填（可选）
+2. Phase 2：架构收敛（已完成）
+- 拆分 `ProjectionPort` 读写职责，删除混合接口。
+- 将启动校验下沉到 Runtime 通用抽象。
+- 分离 ReadModel 与 Relation 的 provider 选择配置。
+- 删除 QueryReader relation fallback，错误配置 fail-fast。
+3. Phase 3：关系数据回填（可选）
 - 从历史 `WorkflowExecutionReport.Topology` 扫描并幂等写回关系边。
-3. Phase 3：灰度切流
+4. Phase 4：灰度切流
 - 对关键租户/环境启用 `Graph + Neo4j` 绑定。
-4. Phase 4：清理
-- 删除历史临时拼装逻辑，固定关系查询走 relation store。
+5. Phase 5：运行优化
+- 根据业务规模补充 relation 查询指标、告警与容量基线。
 
 ## 14. 验证与门禁
 
@@ -250,13 +262,16 @@ flowchart LR
 ## 15. 风险与后续优化
 
 ### 15.1 当前风险
-1. Elasticsearch relation store 为 no-op，若配置为文档 provider 且未声明 Graph 绑定，关系查询会返回空结果。
-2. Workflow relation projector 目前以 `CompleteAsync` 为主写入点，超长运行中间态关系不实时可见。
+1. Elasticsearch relation store 为 no-op，若将其配置为 `RelationProvider` 将在选择阶段 fail-fast（需显式配置支持关系能力的 provider）。
+2. `CHILD_OF` 关系在 `CompleteAsync` 阶段写入；超长运行期间拓扑中间态不可见。
+3. `StepCompletedEvent` 缺少 `step_type/target_role`，关系投影需要读取已存在 step 节点做字段合并，对 relation store 的节点读取语义有依赖。
+4. ReadModel/Relation 双 provider 部署下，文档视图与关系视图在异步投影时可能出现短暂最终一致性窗口。
 
 ### 15.2 建议优化
 1. 增加 relation query 指标（QPS、P95、结果规模）与告警阈值。
 2. 增加 Neo4j relation E2E（容器化）专项测试。
 3. 如需实时关系可视化，可在 `ProjectAsync` 逐步增量写入关键边类型。
+4. 在配置中心增加 `ReadModelProvider/RelationProvider` 组合审计，防止发布时误配。
 
 ## 16. 关键变更清单（按层）
 
@@ -274,10 +289,43 @@ flowchart LR
 
 ### 16.4 Workflow
 1. 新增 `WorkflowExecutionRelationProjector`。
-2. Query/Application/Port/API 全链路支持 relations/subgraph。
-3. 启动期 relation provider fail-fast。
+2. 应用端口拆分为 `LifecyclePort + QueryPort`，Application 层按职责依赖端口。
+3. Query/Application/API 全链路支持 relations/subgraph。
+4. 启动期 relation provider fail-fast。
 
 ### 16.5 Tests
 1. 全部 fake 接口实现同步。
 2. 新增关系查询应用层测试与 API 端点测试。
 3. Host provider 注册覆盖扩展到 relation registration。
+
+## 17. Phase2 整改完成记录（2026-02-24）
+
+### 17.1 已完成整改项
+1. 端口拆分完成：
+- `IWorkflowExecutionProjectionLifecyclePort`（Ensure/Attach/Detach/Release）
+- `IWorkflowExecutionProjectionQueryPort`（Snapshot/Timeline/Relations/Subgraph）
+2. Provider 解耦完成：
+- 新增 `RelationProvider` 独立配置，支持与 `ReadModelProvider` 不同。
+- 选择计划拆分为 `ReadModelSelectionOptions/Requirements` 与 `RelationSelectionOptions/Requirements`。
+3. Runtime 抽象下沉完成：
+- 新增 `IProjectionStoreStartupValidator`，启动校验通过 Runtime 抽象执行。
+- 新增通用端口基类：`ProjectionLifecyclePortServiceBase<>`、`ProjectionQueryPortServiceBase<>`，Workflow 端只保留领域类型绑定。
+4. 失败语义收敛完成：
+- 删除 QueryReader relation fallback。
+- 关系 provider 不满足能力时在选择阶段 fail-fast。
+5. 投影耦合收敛完成：
+- `WorkflowExecutionRelationProjector` 不再依赖 ReadModelStore。
+- step 关系字段通过 relation store 读写合并，避免覆盖已写入属性。
+6. 治理门禁同步完成：
+- `architecture_guards.sh` 已升级为校验 Lifecycle/Query 双端口约束。
+
+### 17.2 DoD 验收结果
+1. `Workflow.Application` 已不依赖混合 ProjectionPort：通过。
+2. 生产可验证 `ReadModelProvider != RelationProvider`：通过（新增 Elasticsearch + InMemory 组合测试）。
+3. 错误 relation 配置 fail-fast：通过（新增 Elasticsearch 未配置 RelationProvider 失败测试）。
+4. 架构与稳定性门禁：通过。
+5. `dotnet build/test` 全量验证：通过。
+
+### 17.3 兼容性声明
+1. 本次重构为不兼容变更，已删除 `IWorkflowExecutionProjectionPort`。
+2. 旧接口调用方必须迁移到 Lifecycle/Query 双端口。
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortActivationService.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortActivationService.cs
new file mode 100644
index 000000000..407ade9c0
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortActivationService.cs
@@ -0,0 +1,14 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+/// <summary>
+/// Generic activation contract for projection runtime lease acquisition.
+/// </summary>
+public interface IProjectionPortActivationService<TLease>
+{
+    Task<TLease> EnsureAsync(
+        string rootEntityId,
+        string projectionName,
+        string input,
+        string commandId,
+        CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortLiveSinkForwarder.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortLiveSinkForwarder.cs
new file mode 100644
index 000000000..14129a60b
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortLiveSinkForwarder.cs
@@ -0,0 +1,13 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+/// <summary>
+/// Generic forwarder contract for projection runtime events to external sinks.
+/// </summary>
+public interface IProjectionPortLiveSinkForwarder<TLease, TSink, TEvent>
+{
+    ValueTask ForwardAsync(
+        TLease lease,
+        TSink sink,
+        TEvent evt,
+        CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortReleaseService.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortReleaseService.cs
new file mode 100644
index 000000000..689c66054
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortReleaseService.cs
@@ -0,0 +1,11 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+/// <summary>
+/// Generic release contract for projection runtime lease lifecycle.
+/// </summary>
+public interface IProjectionPortReleaseService<TLease>
+{
+    Task ReleaseIfIdleAsync(
+        TLease lease,
+        CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortSinkSubscriptionManager.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortSinkSubscriptionManager.cs
new file mode 100644
index 000000000..3332fcbc5
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortSinkSubscriptionManager.cs
@@ -0,0 +1,18 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+/// <summary>
+/// Generic sink subscription manager for projection live-stream delivery.
+/// </summary>
+public interface IProjectionPortSinkSubscriptionManager<TLease, TSink, TEvent>
+{
+    Task AttachOrReplaceAsync(
+        TLease lease,
+        TSink sink,
+        Func<TEvent, ValueTask> handler,
+        CancellationToken ct = default);
+
+    Task DetachAsync(
+        TLease lease,
+        TSink sink,
+        CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreStartupValidator.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreStartupValidator.cs
new file mode 100644
index 000000000..d66074f97
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreStartupValidator.cs
@@ -0,0 +1,15 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionStoreStartupValidator
+{
+    IProjectionReadModelStoreRegistration<TReadModel, TKey> ValidateReadModelProvider<TReadModel, TKey>(
+        IServiceProvider serviceProvider,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements)
+        where TReadModel : class;
+
+    IProjectionRelationStoreRegistration ValidateRelationProvider(
+        IServiceProvider serviceProvider,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
index de1ca1ac1..7132b612d 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
@@ -11,6 +11,8 @@ public ProjectionReadModelRuntimeOptions()
 
     public string Provider { get; set; } = ProjectionReadModelProviderNames.InMemory;
 
+    public string RelationProvider { get; set; } = "";
+
     public bool FailOnUnsupportedCapabilities { get; set; } = true;
 
     public Dictionary<string, string> Bindings { get; }
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Abstractions/README.md
index 6b3efd136..8c3abc60c 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Abstractions/README.md
@@ -5,6 +5,7 @@
 ## 包含内容
 
 - 生命周期与编排：`IProjectionLifecycleService<,>`、`IProjectionCoordinator<,>`、`IProjectionDispatcher<>`、`IProjectionSubscriptionRegistry<>`
+- 端口抽象：`IProjectionPortActivationService<>`、`IProjectionPortReleaseService<>`、`IProjectionPortSinkSubscriptionManager<,,>`、`IProjectionPortLiveSinkForwarder<,,>`
 - 扩展抽象：`IProjectionProjector<,>`、`IProjectionEventReducer<,>`
 - 失败回传：`IProjectionDispatchFailureReporter<>`
 - 读模型存储：`IProjectionReadModelStore<,>`
diff --git a/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionLifecyclePortServiceBase.cs b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionLifecyclePortServiceBase.cs
new file mode 100644
index 000000000..4858a27a8
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionLifecyclePortServiceBase.cs
@@ -0,0 +1,102 @@
+namespace Aevatar.CQRS.Projection.Core.Orchestration;
+
+/// <summary>
+/// Generic lifecycle port base that centralizes projection enable-gate and lease/sink orchestration.
+/// </summary>
+public abstract class ProjectionLifecyclePortServiceBase<TLeaseContract, TRuntimeLease, TSink, TEvent>
+    where TLeaseContract : class
+    where TRuntimeLease : class, TLeaseContract
+    where TSink : class
+{
+    private readonly Func<bool> _projectionEnabledAccessor;
+    private readonly IProjectionPortActivationService<TRuntimeLease> _activationService;
+    private readonly IProjectionPortReleaseService<TRuntimeLease> _releaseService;
+    private readonly IProjectionPortSinkSubscriptionManager<TRuntimeLease, TSink, TEvent> _sinkSubscriptionManager;
+    private readonly IProjectionPortLiveSinkForwarder<TRuntimeLease, TSink, TEvent> _liveSinkForwarder;
+
+    protected ProjectionLifecyclePortServiceBase(
+        Func<bool> projectionEnabledAccessor,
+        IProjectionPortActivationService<TRuntimeLease> activationService,
+        IProjectionPortReleaseService<TRuntimeLease> releaseService,
+        IProjectionPortSinkSubscriptionManager<TRuntimeLease, TSink, TEvent> sinkSubscriptionManager,
+        IProjectionPortLiveSinkForwarder<TRuntimeLease, TSink, TEvent> liveSinkForwarder)
+    {
+        _projectionEnabledAccessor = projectionEnabledAccessor ?? throw new ArgumentNullException(nameof(projectionEnabledAccessor));
+        _activationService = activationService ?? throw new ArgumentNullException(nameof(activationService));
+        _releaseService = releaseService ?? throw new ArgumentNullException(nameof(releaseService));
+        _sinkSubscriptionManager = sinkSubscriptionManager ?? throw new ArgumentNullException(nameof(sinkSubscriptionManager));
+        _liveSinkForwarder = liveSinkForwarder ?? throw new ArgumentNullException(nameof(liveSinkForwarder));
+    }
+
+    protected bool ProjectionEnabledCore => _projectionEnabledAccessor();
+
+    protected async Task<TLeaseContract?> EnsureProjectionAsync(
+        string rootEntityId,
+        string projectionName,
+        string input,
+        string commandId,
+        CancellationToken ct = default)
+    {
+        if (!ProjectionEnabledCore || string.IsNullOrWhiteSpace(rootEntityId))
+            return null;
+
+        return await _activationService.EnsureAsync(
+            rootEntityId,
+            projectionName,
+            input,
+            commandId,
+            ct);
+    }
+
+    protected async Task AttachSinkAsync(
+        TLeaseContract lease,
+        TSink sink,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(lease);
+        ArgumentNullException.ThrowIfNull(sink);
+        ct.ThrowIfCancellationRequested();
+
+        if (!ProjectionEnabledCore)
+            return;
+
+        var runtimeLease = ResolveRuntimeLease(lease);
+        await _sinkSubscriptionManager.AttachOrReplaceAsync(
+            runtimeLease,
+            sink,
+            evt => _liveSinkForwarder.ForwardAsync(runtimeLease, sink, evt, CancellationToken.None),
+            ct);
+    }
+
+    protected async Task DetachSinkAsync(
+        TLeaseContract lease,
+        TSink sink,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(lease);
+        ArgumentNullException.ThrowIfNull(sink);
+        ct.ThrowIfCancellationRequested();
+
+        if (!ProjectionEnabledCore)
+            return;
+
+        var runtimeLease = ResolveRuntimeLease(lease);
+        await _sinkSubscriptionManager.DetachAsync(runtimeLease, sink, ct);
+    }
+
+    protected async Task ReleaseProjectionAsync(
+        TLeaseContract lease,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(lease);
+        ct.ThrowIfCancellationRequested();
+
+        if (!ProjectionEnabledCore)
+            return;
+
+        var runtimeLease = ResolveRuntimeLease(lease);
+        await _releaseService.ReleaseIfIdleAsync(runtimeLease, ct);
+    }
+
+    protected abstract TRuntimeLease ResolveRuntimeLease(TLeaseContract lease);
+}
diff --git a/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionQueryPortServiceBase.cs b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionQueryPortServiceBase.cs
new file mode 100644
index 000000000..73506a514
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionQueryPortServiceBase.cs
@@ -0,0 +1,96 @@
+namespace Aevatar.CQRS.Projection.Core.Orchestration;
+
+/// <summary>
+/// Generic query port base that centralizes query enable-gate behavior.
+/// </summary>
+public abstract class ProjectionQueryPortServiceBase<TSnapshot, TTimelineItem, TRelationItem, TRelationSubgraph>
+{
+    private readonly Func<bool> _queryEnabledAccessor;
+
+    protected ProjectionQueryPortServiceBase(Func<bool> queryEnabledAccessor)
+    {
+        _queryEnabledAccessor = queryEnabledAccessor ?? throw new ArgumentNullException(nameof(queryEnabledAccessor));
+    }
+
+    protected bool QueryEnabledCore => _queryEnabledAccessor();
+
+    protected async Task<TSnapshot?> GetSnapshotAsync(
+        string entityId,
+        CancellationToken ct = default)
+    {
+        if (!QueryEnabledCore || string.IsNullOrWhiteSpace(entityId))
+            return default;
+
+        return await ReadSnapshotCoreAsync(entityId, ct);
+    }
+
+    protected async Task<IReadOnlyList<TSnapshot>> ListSnapshotsAsync(
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        if (!QueryEnabledCore)
+            return [];
+
+        return await ReadSnapshotsCoreAsync(take, ct);
+    }
+
+    protected async Task<IReadOnlyList<TTimelineItem>> ListTimelineAsync(
+        string entityId,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        if (!QueryEnabledCore || string.IsNullOrWhiteSpace(entityId))
+            return [];
+
+        return await ReadTimelineCoreAsync(entityId, take, ct);
+    }
+
+    protected async Task<IReadOnlyList<TRelationItem>> GetRelationsAsync(
+        string entityId,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        if (!QueryEnabledCore || string.IsNullOrWhiteSpace(entityId))
+            return [];
+
+        return await ReadRelationsCoreAsync(entityId, take, ct);
+    }
+
+    protected async Task<TRelationSubgraph> GetRelationSubgraphAsync(
+        string entityId,
+        int depth = 2,
+        int take = 200,
+        CancellationToken ct = default)
+    {
+        if (!QueryEnabledCore || string.IsNullOrWhiteSpace(entityId))
+            return CreateEmptyRelationSubgraph(entityId);
+
+        return await ReadRelationSubgraphCoreAsync(entityId, depth, take, ct);
+    }
+
+    protected abstract Task<TSnapshot?> ReadSnapshotCoreAsync(
+        string entityId,
+        CancellationToken ct);
+
+    protected abstract Task<IReadOnlyList<TSnapshot>> ReadSnapshotsCoreAsync(
+        int take,
+        CancellationToken ct);
+
+    protected abstract Task<IReadOnlyList<TTimelineItem>> ReadTimelineCoreAsync(
+        string entityId,
+        int take,
+        CancellationToken ct);
+
+    protected abstract Task<IReadOnlyList<TRelationItem>> ReadRelationsCoreAsync(
+        string entityId,
+        int take,
+        CancellationToken ct);
+
+    protected abstract Task<TRelationSubgraph> ReadRelationSubgraphCoreAsync(
+        string entityId,
+        int depth,
+        int take,
+        CancellationToken ct);
+
+    protected virtual TRelationSubgraph CreateEmptyRelationSubgraph(string entityId) => default!;
+}
diff --git a/src/Aevatar.CQRS.Projection.Core/README.md b/src/Aevatar.CQRS.Projection.Core/README.md
index 449a92cf1..fa0b94a4f 100644
--- a/src/Aevatar.CQRS.Projection.Core/README.md
+++ b/src/Aevatar.CQRS.Projection.Core/README.md
@@ -12,6 +12,8 @@
     - `ProjectionDispatcher<TContext, TTopology>`
     - `ProjectionSubscriptionRegistry<TContext>`
     - `ProjectionLifecycleService<TContext, TCompletion>`
+    - `ProjectionLifecyclePortServiceBase<TLeaseContract, TRuntimeLease, TSink, TEvent>`
+    - `ProjectionQueryPortServiceBase<TSnapshot, TTimelineItem, TRelationItem, TRelationSubgraph>`
     - `ActorStreamSubscriptionHub<TMessage>`
     - `ProjectionAssemblyRegistration`
     - `SystemProjectionClock`
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index 658e1ec74..0d1c3f1fd 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -16,6 +16,7 @@ public static IServiceCollection AddProjectionReadModelRuntime(this IServiceColl
         services.TryAddSingleton<IProjectionRelationStoreProviderRegistry, ProjectionRelationStoreProviderRegistry>();
         services.TryAddSingleton<IProjectionRelationStoreProviderSelector, ProjectionRelationStoreProviderSelector>();
         services.TryAddSingleton<IProjectionRelationStoreFactory, ProjectionRelationStoreFactory>();
+        services.TryAddSingleton<IProjectionStoreStartupValidator, ProjectionStoreStartupValidator>();
         return services;
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
new file mode 100644
index 000000000..cc57725c5
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
@@ -0,0 +1,48 @@
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionStoreStartupValidator : IProjectionStoreStartupValidator
+{
+    private readonly IProjectionReadModelProviderRegistry _readModelProviderRegistry;
+    private readonly IProjectionReadModelProviderSelector _readModelProviderSelector;
+    private readonly IProjectionRelationStoreProviderRegistry _relationProviderRegistry;
+    private readonly IProjectionRelationStoreProviderSelector _relationProviderSelector;
+
+    public ProjectionStoreStartupValidator(
+        IProjectionReadModelProviderRegistry readModelProviderRegistry,
+        IProjectionReadModelProviderSelector readModelProviderSelector,
+        IProjectionRelationStoreProviderRegistry relationProviderRegistry,
+        IProjectionRelationStoreProviderSelector relationProviderSelector)
+    {
+        _readModelProviderRegistry = readModelProviderRegistry;
+        _readModelProviderSelector = readModelProviderSelector;
+        _relationProviderRegistry = relationProviderRegistry;
+        _relationProviderSelector = relationProviderSelector;
+    }
+
+    public IProjectionReadModelStoreRegistration<TReadModel, TKey> ValidateReadModelProvider<TReadModel, TKey>(
+        IServiceProvider serviceProvider,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements)
+        where TReadModel : class
+    {
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+        ArgumentNullException.ThrowIfNull(selectionOptions);
+        ArgumentNullException.ThrowIfNull(requirements);
+
+        var registrations = _readModelProviderRegistry.GetRegistrations<TReadModel, TKey>(serviceProvider);
+        return _readModelProviderSelector.Select(registrations, selectionOptions, requirements);
+    }
+
+    public IProjectionRelationStoreRegistration ValidateRelationProvider(
+        IServiceProvider serviceProvider,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements)
+    {
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+        ArgumentNullException.ThrowIfNull(selectionOptions);
+        ArgumentNullException.ThrowIfNull(requirements);
+
+        var registrations = _relationProviderRegistry.GetRegistrations(serviceProvider);
+        return _relationProviderSelector.Select(registrations, selectionOptions, requirements);
+    }
+}
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionLifecyclePort.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionLifecyclePort.cs
new file mode 100644
index 000000000..5a0cecc75
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionLifecyclePort.cs
@@ -0,0 +1,29 @@
+using Aevatar.Workflow.Application.Abstractions.Runs;
+
+namespace Aevatar.Workflow.Application.Abstractions.Projections;
+
+public interface IWorkflowExecutionProjectionLifecyclePort
+{
+    bool ProjectionEnabled { get; }
+
+    Task<IWorkflowExecutionProjectionLease?> EnsureActorProjectionAsync(
+        string rootActorId,
+        string workflowName,
+        string input,
+        string commandId,
+        CancellationToken ct = default);
+
+    Task AttachLiveSinkAsync(
+        IWorkflowExecutionProjectionLease lease,
+        IWorkflowRunEventSink sink,
+        CancellationToken ct = default);
+
+    Task DetachLiveSinkAsync(
+        IWorkflowExecutionProjectionLease lease,
+        IWorkflowRunEventSink sink,
+        CancellationToken ct = default);
+
+    Task ReleaseActorProjectionAsync(
+        IWorkflowExecutionProjectionLease lease,
+        CancellationToken ct = default);
+}
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionPort.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
similarity index 54%
rename from src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionPort.cs
rename to src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
index e76d9668d..451207ba1 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionPort.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
@@ -1,35 +1,11 @@
 using Aevatar.Workflow.Application.Abstractions.Queries;
-using Aevatar.Workflow.Application.Abstractions.Runs;
 
 namespace Aevatar.Workflow.Application.Abstractions.Projections;
 
-public interface IWorkflowExecutionProjectionPort
+public interface IWorkflowExecutionProjectionQueryPort
 {
-    bool ProjectionEnabled { get; }
-
     bool EnableActorQueryEndpoints { get; }
 
-    Task<IWorkflowExecutionProjectionLease?> EnsureActorProjectionAsync(
-        string rootActorId,
-        string workflowName,
-        string input,
-        string commandId,
-        CancellationToken ct = default);
-
-    Task AttachLiveSinkAsync(
-        IWorkflowExecutionProjectionLease lease,
-        IWorkflowRunEventSink sink,
-        CancellationToken ct = default);
-
-    Task DetachLiveSinkAsync(
-        IWorkflowExecutionProjectionLease lease,
-        IWorkflowRunEventSink sink,
-        CancellationToken ct = default);
-
-    Task ReleaseActorProjectionAsync(
-        IWorkflowExecutionProjectionLease lease,
-        CancellationToken ct = default);
-
     Task<WorkflowActorSnapshot?> GetActorSnapshotAsync(
         string actorId,
         CancellationToken ct = default);
diff --git a/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs b/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
index f89111b8b..e4164373b 100644
--- a/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
+++ b/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
@@ -7,11 +7,11 @@ namespace Aevatar.Workflow.Application.Queries;
 public sealed class WorkflowExecutionQueryApplicationService : IWorkflowExecutionQueryApplicationService
 {
     private readonly IWorkflowDefinitionRegistry _workflowRegistry;
-    private readonly IWorkflowExecutionProjectionPort _projectionPort;
+    private readonly IWorkflowExecutionProjectionQueryPort _projectionPort;
 
     public WorkflowExecutionQueryApplicationService(
         IWorkflowDefinitionRegistry workflowRegistry,
-        IWorkflowExecutionProjectionPort projectionPort)
+        IWorkflowExecutionProjectionQueryPort projectionPort)
     {
         _workflowRegistry = workflowRegistry;
         _projectionPort = projectionPort;
diff --git a/src/workflow/Aevatar.Workflow.Application/README.md b/src/workflow/Aevatar.Workflow.Application/README.md
index fa2344505..ce9ec45e0 100644
--- a/src/workflow/Aevatar.Workflow.Application/README.md
+++ b/src/workflow/Aevatar.Workflow.Application/README.md
@@ -22,7 +22,7 @@
 - `WorkflowRunOutputStreamer`
   - 读取 run 事件并映射 `WorkflowOutputFrame`。
 - `WorkflowExecutionQueryApplicationService`
-  - `agents/workflows/runs` 查询门面（经 `IWorkflowExecutionProjectionPort` 读取读侧模型）。
+  - `agents/workflows/runs` 查询门面（经 `IWorkflowExecutionProjectionQueryPort` 读取读侧模型）。
   - `ListAgentsAsync` 仅返回 `WorkflowGAgent`，不扫描暴露非 Workflow actor。
 - `WorkflowDefinitionRegistry`
   - 维护 workflow 名称到 YAML 的内存注册表。
diff --git a/src/workflow/Aevatar.Workflow.Application/Runs/WorkflowRunContextFactory.cs b/src/workflow/Aevatar.Workflow.Application/Runs/WorkflowRunContextFactory.cs
index 05015cef9..f162709b6 100644
--- a/src/workflow/Aevatar.Workflow.Application/Runs/WorkflowRunContextFactory.cs
+++ b/src/workflow/Aevatar.Workflow.Application/Runs/WorkflowRunContextFactory.cs
@@ -7,12 +7,12 @@ namespace Aevatar.Workflow.Application.Runs;
 public sealed class WorkflowRunContextFactory : IWorkflowRunContextFactory
 {
     private readonly IWorkflowRunActorResolver _actorResolver;
-    private readonly IWorkflowExecutionProjectionPort _projectionPort;
+    private readonly IWorkflowExecutionProjectionLifecyclePort _projectionPort;
     private readonly ICommandContextPolicy _commandContextPolicy;
 
     public WorkflowRunContextFactory(
         IWorkflowRunActorResolver actorResolver,
-        IWorkflowExecutionProjectionPort projectionPort,
+        IWorkflowExecutionProjectionLifecyclePort projectionPort,
         ICommandContextPolicy commandContextPolicy)
     {
         _actorResolver = actorResolver;
diff --git a/src/workflow/Aevatar.Workflow.Application/Runs/WorkflowRunResourceFinalizer.cs b/src/workflow/Aevatar.Workflow.Application/Runs/WorkflowRunResourceFinalizer.cs
index 84c9376e4..e5240d06f 100644
--- a/src/workflow/Aevatar.Workflow.Application/Runs/WorkflowRunResourceFinalizer.cs
+++ b/src/workflow/Aevatar.Workflow.Application/Runs/WorkflowRunResourceFinalizer.cs
@@ -4,9 +4,9 @@ namespace Aevatar.Workflow.Application.Runs;
 
 public sealed class WorkflowRunResourceFinalizer : IWorkflowRunResourceFinalizer
 {
-    private readonly IWorkflowExecutionProjectionPort _projectionPort;
+    private readonly IWorkflowExecutionProjectionLifecyclePort _projectionPort;
 
-    public WorkflowRunResourceFinalizer(IWorkflowExecutionProjectionPort projectionPort)
+    public WorkflowRunResourceFinalizer(IWorkflowExecutionProjectionLifecyclePort projectionPort)
     {
         _projectionPort = projectionPort;
     }
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
index 9ddd97d23..55fd2a1fb 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
@@ -47,6 +47,8 @@ private static void ApplyGlobalReadModelOptions(
 
         if (!string.IsNullOrWhiteSpace(readModelOptions.Provider))
             options.ReadModelProvider = readModelOptions.Provider.Trim();
+        if (!string.IsNullOrWhiteSpace(readModelOptions.RelationProvider))
+            options.RelationProvider = readModelOptions.RelationProvider.Trim();
 
         options.ReadModelMode = readModelOptions.Mode;
         options.FailOnUnsupportedCapabilities = readModelOptions.FailOnUnsupportedCapabilities;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
index 2059b4aff..42c6ed708 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
@@ -47,6 +47,11 @@ public bool EnableRunQueryEndpoints
     /// </summary>
     public string ReadModelProvider { get; set; } = ProjectionReadModelProviderNames.InMemory;
 
+    /// <summary>
+    /// Relation store provider name. Empty means fallback to <see cref="ReadModelProvider"/>.
+    /// </summary>
+    public string RelationProvider { get; set; } = "";
+
     /// <summary>
     /// Whether unsupported provider capabilities should fail fast during startup registration.
     /// </summary>
@@ -57,6 +62,11 @@ public bool EnableRunQueryEndpoints
     /// </summary>
     public bool ValidateReadModelProviderOnStartup { get; set; } = true;
 
+    /// <summary>
+    /// Whether to pre-validate relation provider selection and capabilities during host startup.
+    /// </summary>
+    public bool ValidateRelationProviderOnStartup { get; set; } = true;
+
     /// <summary>
     /// Optional read-model binding requirements (ReadModelName -> IndexKind).
     /// </summary>
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index 3d0c34187..cc032d862 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -60,7 +60,12 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.TryAddSingleton<IWorkflowProjectionReadModelUpdater, WorkflowProjectionReadModelUpdater>();
         services.TryAddSingleton<IWorkflowProjectionQueryReader, WorkflowProjectionQueryReader>();
         services.TryAddSingleton<IProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>, ProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>>();
-        services.TryAddSingleton<IWorkflowExecutionProjectionPort, WorkflowExecutionProjectionService>();
+        services.TryAddSingleton<WorkflowExecutionProjectionLifecycleService>();
+        services.TryAddSingleton<IWorkflowExecutionProjectionLifecyclePort>(sp =>
+            sp.GetRequiredService<WorkflowExecutionProjectionLifecycleService>());
+        services.TryAddSingleton<WorkflowExecutionProjectionQueryService>();
+        services.TryAddSingleton<IWorkflowExecutionProjectionQueryPort>(sp =>
+            sp.GetRequiredService<WorkflowExecutionProjectionQueryService>());
         services.TryAddEnumerable(ServiceDescriptor.Singleton<IHostedService, WorkflowReadModelStartupValidationHostedService>());
         return services;
     }
@@ -122,8 +127,8 @@ private static void RegisterWorkflowReadModelStoreSelector(IServiceCollection se
 
             return storeFactory.Create<WorkflowExecutionReport, string>(
                 sp,
-                selectionPlan.SelectionOptions,
-                selectionPlan.Requirements);
+                selectionPlan.ReadModelSelectionOptions,
+                selectionPlan.ReadModelRequirements);
         }));
     }
 
@@ -138,8 +143,8 @@ private static void RegisterWorkflowRelationStoreSelector(IServiceCollection ser
 
             return relationStoreFactory.Create(
                 sp,
-                selectionPlan.SelectionOptions,
-                selectionPlan.Requirements);
+                selectionPlan.RelationSelectionOptions,
+                selectionPlan.RelationRequirements);
         }));
     }
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs
index d8a5f0216..eb487dd04 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs
@@ -1,11 +1,6 @@
+using Aevatar.CQRS.Projection.Abstractions;
+
 namespace Aevatar.Workflow.Projection.Orchestration;
 
 public interface IWorkflowProjectionActivationService
-{
-    Task<WorkflowExecutionRuntimeLease> EnsureAsync(
-        string rootActorId,
-        string workflowName,
-        string input,
-        string commandId,
-        CancellationToken ct = default);
-}
+    : IProjectionPortActivationService<WorkflowExecutionRuntimeLease>;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs
index dbb1b4349..2b8b9c228 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs
@@ -1,12 +1,7 @@
 using Aevatar.Workflow.Application.Abstractions.Runs;
+using Aevatar.CQRS.Projection.Abstractions;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
 public interface IWorkflowProjectionLiveSinkForwarder
-{
-    ValueTask ForwardAsync(
-        WorkflowExecutionRuntimeLease runtimeLease,
-        IWorkflowRunEventSink sink,
-        WorkflowRunEvent evt,
-        CancellationToken ct = default);
-}
+    : IProjectionPortLiveSinkForwarder<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent>;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs
index ec4a49f36..df7a43274 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs
@@ -1,8 +1,6 @@
+using Aevatar.CQRS.Projection.Abstractions;
+
 namespace Aevatar.Workflow.Projection.Orchestration;
 
 public interface IWorkflowProjectionReleaseService
-{
-    Task ReleaseIfIdleAsync(
-        WorkflowExecutionRuntimeLease runtimeLease,
-        CancellationToken ct = default);
-}
+    : IProjectionPortReleaseService<WorkflowExecutionRuntimeLease>;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs
index 4a9610ab3..d0e5192b5 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs
@@ -1,19 +1,10 @@
 using Aevatar.Workflow.Application.Abstractions.Runs;
+using Aevatar.CQRS.Projection.Abstractions;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
 public interface IWorkflowProjectionSinkSubscriptionManager
+    : IProjectionPortSinkSubscriptionManager<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent>
 {
-    Task AttachOrReplaceAsync(
-        WorkflowExecutionRuntimeLease lease,
-        IWorkflowRunEventSink sink,
-        Func<WorkflowRunEvent, ValueTask> handler,
-        CancellationToken ct = default);
-
-    Task DetachAsync(
-        WorkflowExecutionRuntimeLease lease,
-        IWorkflowRunEventSink sink,
-        CancellationToken ct = default);
-
     int GetSubscriptionCount(WorkflowExecutionRuntimeLease lease);
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs
index dd6acf4ce..0a4545779 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs
@@ -4,8 +4,10 @@
 namespace Aevatar.Workflow.Projection.Orchestration;
 
 public readonly record struct WorkflowReadModelSelectionPlan(
-    ProjectionReadModelRequirements Requirements,
-    ProjectionReadModelStoreSelectionOptions SelectionOptions);
+    ProjectionReadModelRequirements ReadModelRequirements,
+    ProjectionReadModelStoreSelectionOptions ReadModelSelectionOptions,
+    ProjectionReadModelRequirements RelationRequirements,
+    ProjectionReadModelStoreSelectionOptions RelationSelectionOptions);
 
 public interface IWorkflowReadModelSelectionPlanner
 {
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionLifecycleService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionLifecycleService.cs
new file mode 100644
index 000000000..de3afb5e9
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionLifecycleService.cs
@@ -0,0 +1,62 @@
+using Aevatar.Workflow.Application.Abstractions.Projections;
+using Aevatar.Workflow.Application.Abstractions.Runs;
+using Aevatar.CQRS.Projection.Core.Orchestration;
+using Aevatar.Workflow.Projection.Configuration;
+
+namespace Aevatar.Workflow.Projection.Orchestration;
+
+public sealed class WorkflowExecutionProjectionLifecycleService
+    : ProjectionLifecyclePortServiceBase<IWorkflowExecutionProjectionLease, WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent>,
+      IWorkflowExecutionProjectionLifecyclePort
+{
+    public WorkflowExecutionProjectionLifecycleService(
+        WorkflowExecutionProjectionOptions options,
+        IWorkflowProjectionActivationService activationService,
+        IWorkflowProjectionReleaseService releaseService,
+        IWorkflowProjectionSinkSubscriptionManager sinkSubscriptionManager,
+        IWorkflowProjectionLiveSinkForwarder liveSinkForwarder)
+        : base(
+            () => options.Enabled,
+            activationService,
+            releaseService,
+            sinkSubscriptionManager,
+            liveSinkForwarder)
+    {
+    }
+
+    public bool ProjectionEnabled => ProjectionEnabledCore;
+
+    public Task<IWorkflowExecutionProjectionLease?> EnsureActorProjectionAsync(
+        string rootActorId,
+        string workflowName,
+        string input,
+        string commandId,
+        CancellationToken ct = default) =>
+        EnsureProjectionAsync(
+            rootActorId,
+            workflowName,
+            input,
+            commandId,
+            ct);
+
+    public Task AttachLiveSinkAsync(
+        IWorkflowExecutionProjectionLease lease,
+        IWorkflowRunEventSink sink,
+        CancellationToken ct = default) =>
+        AttachSinkAsync(lease, sink, ct);
+
+    public Task DetachLiveSinkAsync(
+        IWorkflowExecutionProjectionLease lease,
+        IWorkflowRunEventSink sink,
+        CancellationToken ct = default) =>
+        DetachSinkAsync(lease, sink, ct);
+
+    public Task ReleaseActorProjectionAsync(
+        IWorkflowExecutionProjectionLease lease,
+        CancellationToken ct = default) =>
+        ReleaseProjectionAsync(lease, ct);
+
+    protected override WorkflowExecutionRuntimeLease ResolveRuntimeLease(IWorkflowExecutionProjectionLease lease) =>
+        lease as WorkflowExecutionRuntimeLease
+        ?? throw new InvalidOperationException("Unsupported workflow projection lease implementation.");
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
new file mode 100644
index 000000000..742b2cae3
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
@@ -0,0 +1,89 @@
+using Aevatar.Workflow.Application.Abstractions.Projections;
+using Aevatar.Workflow.Application.Abstractions.Queries;
+using Aevatar.CQRS.Projection.Core.Orchestration;
+using Aevatar.Workflow.Projection.Configuration;
+
+namespace Aevatar.Workflow.Projection.Orchestration;
+
+public sealed class WorkflowExecutionProjectionQueryService
+    : ProjectionQueryPortServiceBase<WorkflowActorSnapshot, WorkflowActorTimelineItem, WorkflowActorRelationItem, WorkflowActorRelationSubgraph>,
+      IWorkflowExecutionProjectionQueryPort
+{
+    private readonly IWorkflowProjectionQueryReader _queryReader;
+
+    public WorkflowExecutionProjectionQueryService(
+        WorkflowExecutionProjectionOptions options,
+        IWorkflowProjectionQueryReader queryReader)
+        : base(() => options.Enabled && options.EnableActorQueryEndpoints)
+    {
+        _queryReader = queryReader;
+    }
+
+    public bool EnableActorQueryEndpoints => QueryEnabledCore;
+
+    public Task<WorkflowActorSnapshot?> GetActorSnapshotAsync(
+        string actorId,
+        CancellationToken ct = default) =>
+        GetSnapshotAsync(actorId, ct);
+
+    public Task<IReadOnlyList<WorkflowActorSnapshot>> ListActorSnapshotsAsync(
+        int take = 200,
+        CancellationToken ct = default) =>
+        ListSnapshotsAsync(take, ct);
+
+    public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
+        string actorId,
+        int take = 200,
+        CancellationToken ct = default) =>
+        ListTimelineAsync(actorId, take, ct);
+
+    public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+        string actorId,
+        int take = 200,
+        CancellationToken ct = default) =>
+        GetRelationsAsync(actorId, take, ct);
+
+    public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        CancellationToken ct = default) =>
+        GetRelationSubgraphAsync(actorId, depth, take, ct);
+
+    protected override Task<WorkflowActorSnapshot?> ReadSnapshotCoreAsync(
+        string entityId,
+        CancellationToken ct)
+        => _queryReader.GetActorSnapshotAsync(entityId, ct);
+
+    protected override Task<IReadOnlyList<WorkflowActorSnapshot>> ReadSnapshotsCoreAsync(
+        int take,
+        CancellationToken ct)
+        => _queryReader.ListActorSnapshotsAsync(take, ct);
+
+    protected override Task<IReadOnlyList<WorkflowActorTimelineItem>> ReadTimelineCoreAsync(
+        string entityId,
+        int take,
+        CancellationToken ct)
+        => _queryReader.ListActorTimelineAsync(entityId, take, ct);
+
+    protected override Task<IReadOnlyList<WorkflowActorRelationItem>> ReadRelationsCoreAsync(
+        string entityId,
+        int take,
+        CancellationToken ct)
+        => _queryReader.GetActorRelationsAsync(entityId, take, ct);
+
+    protected override Task<WorkflowActorRelationSubgraph> ReadRelationSubgraphCoreAsync(
+        string entityId,
+        int depth,
+        int take,
+        CancellationToken ct)
+        => _queryReader.GetActorRelationSubgraphAsync(entityId, depth, take, ct);
+
+    protected override WorkflowActorRelationSubgraph CreateEmptyRelationSubgraph(string entityId)
+    {
+        return new WorkflowActorRelationSubgraph
+        {
+            RootNodeId = entityId ?? string.Empty,
+        };
+    }
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionService.cs
deleted file mode 100644
index 2293dc7a7..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionService.cs
+++ /dev/null
@@ -1,169 +0,0 @@
-using Aevatar.Workflow.Application.Abstractions.Projections;
-using Aevatar.Workflow.Application.Abstractions.Queries;
-using Aevatar.Workflow.Application.Abstractions.Runs;
-using Aevatar.Workflow.Projection.Configuration;
-
-namespace Aevatar.Workflow.Projection.Orchestration;
-
-/// <summary>
-/// Application-facing facade for workflow run projection lifecycle and read-model queries.
-/// </summary>
-public sealed class WorkflowExecutionProjectionService : IWorkflowExecutionProjectionPort
-{
-    private readonly WorkflowExecutionProjectionOptions _options;
-    private readonly IWorkflowProjectionQueryReader _queryReader;
-    private readonly IWorkflowProjectionActivationService _activationService;
-    private readonly IWorkflowProjectionReleaseService _releaseService;
-    private readonly IWorkflowProjectionSinkSubscriptionManager _sinkSubscriptionManager;
-    private readonly IWorkflowProjectionLiveSinkForwarder _liveSinkForwarder;
-
-    public WorkflowExecutionProjectionService(
-        WorkflowExecutionProjectionOptions options,
-        IWorkflowProjectionQueryReader queryReader,
-        IWorkflowProjectionActivationService activationService,
-        IWorkflowProjectionReleaseService releaseService,
-        IWorkflowProjectionSinkSubscriptionManager sinkSubscriptionManager,
-        IWorkflowProjectionLiveSinkForwarder liveSinkForwarder)
-    {
-        _options = options;
-        _queryReader = queryReader;
-        _activationService = activationService;
-        _releaseService = releaseService;
-        _sinkSubscriptionManager = sinkSubscriptionManager;
-        _liveSinkForwarder = liveSinkForwarder;
-    }
-
-    public bool ProjectionEnabled => _options.Enabled;
-
-    public bool EnableActorQueryEndpoints => _options.Enabled && _options.EnableActorQueryEndpoints;
-
-    public async Task<IWorkflowExecutionProjectionLease?> EnsureActorProjectionAsync(
-        string rootActorId,
-        string workflowName,
-        string input,
-        string commandId,
-        CancellationToken ct = default)
-    {
-        if (!ProjectionEnabled || string.IsNullOrWhiteSpace(rootActorId))
-            return null;
-
-        return await _activationService.EnsureAsync(
-            rootActorId,
-            workflowName,
-            input,
-            commandId,
-            ct);
-    }
-
-    public async Task AttachLiveSinkAsync(
-        IWorkflowExecutionProjectionLease lease,
-        IWorkflowRunEventSink sink,
-        CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(lease);
-        ArgumentNullException.ThrowIfNull(sink);
-        ct.ThrowIfCancellationRequested();
-
-        if (!ProjectionEnabled)
-            return;
-
-        var runtimeLease = ResolveRuntimeLease(lease);
-        await _sinkSubscriptionManager.AttachOrReplaceAsync(
-            runtimeLease,
-            sink,
-            evt => _liveSinkForwarder.ForwardAsync(runtimeLease, sink, evt, CancellationToken.None),
-            ct);
-    }
-
-    public async Task DetachLiveSinkAsync(
-        IWorkflowExecutionProjectionLease lease,
-        IWorkflowRunEventSink sink,
-        CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(lease);
-        ArgumentNullException.ThrowIfNull(sink);
-        ct.ThrowIfCancellationRequested();
-
-        if (!ProjectionEnabled)
-            return;
-
-        var runtimeLease = ResolveRuntimeLease(lease);
-        await _sinkSubscriptionManager.DetachAsync(runtimeLease, sink, ct);
-    }
-
-    public async Task ReleaseActorProjectionAsync(
-        IWorkflowExecutionProjectionLease lease,
-        CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(lease);
-        ct.ThrowIfCancellationRequested();
-        if (!ProjectionEnabled)
-            return;
-
-        var runtimeLease = ResolveRuntimeLease(lease);
-        await _releaseService.ReleaseIfIdleAsync(runtimeLease, ct);
-    }
-
-    public async Task<WorkflowActorSnapshot?> GetActorSnapshotAsync(
-        string actorId,
-        CancellationToken ct = default)
-    {
-        if (!EnableActorQueryEndpoints || string.IsNullOrWhiteSpace(actorId))
-            return null;
-
-        return await _queryReader.GetActorSnapshotAsync(actorId, ct);
-    }
-
-    public async Task<IReadOnlyList<WorkflowActorSnapshot>> ListActorSnapshotsAsync(
-        int take = 200,
-        CancellationToken ct = default)
-    {
-        if (!EnableActorQueryEndpoints)
-            return [];
-
-        return await _queryReader.ListActorSnapshotsAsync(take, ct);
-    }
-
-    public async Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
-        string actorId,
-        int take = 200,
-        CancellationToken ct = default)
-    {
-        if (!EnableActorQueryEndpoints || string.IsNullOrWhiteSpace(actorId))
-            return [];
-
-        return await _queryReader.ListActorTimelineAsync(actorId, take, ct);
-    }
-
-    public async Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
-        string actorId,
-        int take = 200,
-        CancellationToken ct = default)
-    {
-        if (!EnableActorQueryEndpoints || string.IsNullOrWhiteSpace(actorId))
-            return [];
-
-        return await _queryReader.GetActorRelationsAsync(actorId, take, ct);
-    }
-
-    public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
-        string actorId,
-        int depth = 2,
-        int take = 200,
-        CancellationToken ct = default)
-    {
-        if (!EnableActorQueryEndpoints || string.IsNullOrWhiteSpace(actorId))
-        {
-            return new WorkflowActorRelationSubgraph
-            {
-                RootNodeId = actorId ?? string.Empty,
-            };
-        }
-
-        return await _queryReader.GetActorRelationSubgraphAsync(actorId, depth, take, ct);
-    }
-
-    private static WorkflowExecutionRuntimeLease ResolveRuntimeLease(IWorkflowExecutionProjectionLease lease) =>
-        lease as WorkflowExecutionRuntimeLease
-        ?? throw new InvalidOperationException("Unsupported workflow projection lease implementation.");
-}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
index e16537641..1e3b988be 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
@@ -12,11 +12,11 @@ public sealed class WorkflowProjectionQueryReader : IWorkflowProjectionQueryRead
     public WorkflowProjectionQueryReader(
         IProjectionReadModelStore<WorkflowExecutionReport, string> store,
         WorkflowExecutionReadModelMapper mapper,
-        IProjectionRelationStore? relationStore = null)
+        IProjectionRelationStore relationStore)
     {
         _store = store;
         _mapper = mapper;
-        _relationStore = relationStore ?? NoopProjectionRelationStore.Instance;
+        _relationStore = relationStore;
     }
 
     public async Task<WorkflowActorSnapshot?> GetActorSnapshotAsync(
@@ -101,28 +101,4 @@ public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             ct);
         return _mapper.ToActorRelationSubgraph(actorIdValue, subgraph);
     }
-
-    private sealed class NoopProjectionRelationStore : IProjectionRelationStore
-    {
-        public static NoopProjectionRelationStore Instance { get; } = new();
-
-        public Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken ct = default) =>
-            Task.CompletedTask;
-
-        public Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken ct = default) =>
-            Task.CompletedTask;
-
-        public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default) =>
-            Task.CompletedTask;
-
-        public Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
-            ProjectionRelationQuery query,
-            CancellationToken ct = default) =>
-            Task.FromResult<IReadOnlyList<ProjectionRelationEdge>>([]);
-
-        public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
-            ProjectionRelationQuery query,
-            CancellationToken ct = default) =>
-            Task.FromResult(new ProjectionRelationSubgraph());
-    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
index 5673660a7..b809039f8 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
@@ -18,20 +18,47 @@ public WorkflowReadModelSelectionPlan Build(WorkflowExecutionProjectionOptions o
         ArgumentNullException.ThrowIfNull(options);
         EnsureReadModelModeSupported(options.ReadModelMode);
 
-        var requirements = _bindingResolver.Resolve(options.ReadModelBindings, typeof(WorkflowExecutionReport));
-        var selectionOptions = new ProjectionReadModelStoreSelectionOptions
+        var readModelRequirements = _bindingResolver.Resolve(options.ReadModelBindings, typeof(WorkflowExecutionReport));
+        var readModelSelectionOptions = new ProjectionReadModelStoreSelectionOptions
         {
             RequestedProviderName = NormalizeProviderName(options.ReadModelProvider),
             FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
         };
+        var relationRequirements = BuildRelationRequirements(readModelRequirements);
+        var relationSelectionOptions = new ProjectionReadModelStoreSelectionOptions
+        {
+            RequestedProviderName = NormalizeProviderName(
+                options.RelationProvider,
+                options.ReadModelProvider),
+            FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
+        };
 
-        return new WorkflowReadModelSelectionPlan(requirements, selectionOptions);
+        return new WorkflowReadModelSelectionPlan(
+            readModelRequirements,
+            readModelSelectionOptions,
+            relationRequirements,
+            relationSelectionOptions);
     }
 
-    private static string NormalizeProviderName(string providerName)
+    private static ProjectionReadModelRequirements BuildRelationRequirements(
+        ProjectionReadModelRequirements readModelRequirements)
+    {
+        // Workflow relation endpoints depend on relation storage + traversal as first-class capability.
+        return new ProjectionReadModelRequirements(
+            requiresRelations: true,
+            requiresRelationTraversal: true,
+            requiresAliases: readModelRequirements.RequiresAliases,
+            requiresSchemaValidation: readModelRequirements.RequiresSchemaValidation);
+    }
+
+    private static string NormalizeProviderName(string providerName, string fallbackProviderName = "")
     {
         if (string.IsNullOrWhiteSpace(providerName))
-            return ProjectionReadModelProviderNames.InMemory;
+        {
+            if (string.IsNullOrWhiteSpace(fallbackProviderName))
+                return ProjectionReadModelProviderNames.InMemory;
+            return fallbackProviderName.Trim();
+        }
 
         return providerName.Trim();
     }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index 6f080c448..c5c4e9bc2 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -12,56 +12,54 @@ internal sealed class WorkflowReadModelStartupValidationHostedService : IHostedS
     private readonly IServiceProvider _serviceProvider;
     private readonly WorkflowExecutionProjectionOptions _options;
     private readonly IWorkflowReadModelSelectionPlanner _selectionPlanner;
-    private readonly IProjectionReadModelProviderRegistry _providerRegistry;
-    private readonly IProjectionReadModelProviderSelector _providerSelector;
-    private readonly IProjectionRelationStoreProviderRegistry _relationProviderRegistry;
-    private readonly IProjectionRelationStoreProviderSelector _relationProviderSelector;
+    private readonly IProjectionStoreStartupValidator _startupValidator;
     private readonly ILogger<WorkflowReadModelStartupValidationHostedService> _logger;
 
     public WorkflowReadModelStartupValidationHostedService(
         IServiceProvider serviceProvider,
         WorkflowExecutionProjectionOptions options,
         IWorkflowReadModelSelectionPlanner selectionPlanner,
-        IProjectionReadModelProviderRegistry providerRegistry,
-        IProjectionReadModelProviderSelector providerSelector,
-        IProjectionRelationStoreProviderRegistry relationProviderRegistry,
-        IProjectionRelationStoreProviderSelector relationProviderSelector,
+        IProjectionStoreStartupValidator startupValidator,
         ILogger<WorkflowReadModelStartupValidationHostedService>? logger = null)
     {
         _serviceProvider = serviceProvider;
         _options = options;
         _selectionPlanner = selectionPlanner;
-        _providerRegistry = providerRegistry;
-        _providerSelector = providerSelector;
-        _relationProviderRegistry = relationProviderRegistry;
-        _relationProviderSelector = relationProviderSelector;
+        _startupValidator = startupValidator;
         _logger = logger ?? NullLogger<WorkflowReadModelStartupValidationHostedService>.Instance;
     }
 
     public Task StartAsync(CancellationToken cancellationToken)
     {
         cancellationToken.ThrowIfCancellationRequested();
-        if (!_options.Enabled || !_options.ValidateReadModelProviderOnStartup)
+        if (!_options.Enabled)
             return Task.CompletedTask;
 
         var selectionPlan = _selectionPlanner.Build(_options);
 
-        var registrations = _providerRegistry.GetRegistrations<WorkflowExecutionReport, string>(_serviceProvider);
-        var selected = _providerSelector.Select(registrations, selectionPlan.SelectionOptions, selectionPlan.Requirements);
-        _logger.LogInformation(
-            "Workflow read-model provider startup validation passed. readModelType={ReadModelType} provider={Provider}",
-            typeof(WorkflowExecutionReport).FullName,
-            selected.ProviderName);
+        if (_options.ValidateReadModelProviderOnStartup)
+        {
+            var selectedReadModelProvider = _startupValidator.ValidateReadModelProvider<WorkflowExecutionReport, string>(
+                _serviceProvider,
+                selectionPlan.ReadModelSelectionOptions,
+                selectionPlan.ReadModelRequirements);
+            _logger.LogInformation(
+                "Workflow read-model provider startup validation passed. readModelType={ReadModelType} provider={Provider}",
+                typeof(WorkflowExecutionReport).FullName,
+                selectedReadModelProvider.ProviderName);
+        }
 
-        var relationRegistrations = _relationProviderRegistry.GetRegistrations(_serviceProvider);
-        var selectedRelationProvider = _relationProviderSelector.Select(
-            relationRegistrations,
-            selectionPlan.SelectionOptions,
-            selectionPlan.Requirements);
-        _logger.LogInformation(
-            "Workflow relation provider startup validation passed. relationType={RelationType} provider={Provider}",
-            typeof(ProjectionRelationNode).FullName,
-            selectedRelationProvider.ProviderName);
+        if (_options.ValidateRelationProviderOnStartup)
+        {
+            var selectedRelationProvider = _startupValidator.ValidateRelationProvider(
+                _serviceProvider,
+                selectionPlan.RelationSelectionOptions,
+                selectionPlan.RelationRequirements);
+            _logger.LogInformation(
+                "Workflow relation provider startup validation passed. relationType={RelationType} provider={Provider}",
+                typeof(ProjectionRelationNode).FullName,
+                selectedRelationProvider.ProviderName);
+        }
         return Task.CompletedTask;
     }
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
index 08b53dc90..c37d875b3 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
@@ -8,14 +8,10 @@ public sealed class WorkflowExecutionRelationProjector
 {
     private const string UnknownToken = "unknown";
     private readonly IProjectionRelationStore _relationStore;
-    private readonly IProjectionReadModelStore<WorkflowExecutionReport, string> _readModelStore;
 
-    public WorkflowExecutionRelationProjector(
-        IProjectionRelationStore relationStore,
-        IProjectionReadModelStore<WorkflowExecutionReport, string> readModelStore)
+    public WorkflowExecutionRelationProjector(IProjectionRelationStore relationStore)
     {
         _relationStore = relationStore;
-        _readModelStore = readModelStore;
     }
 
     public async ValueTask InitializeAsync(WorkflowExecutionProjectionContext context, CancellationToken ct = default)
@@ -37,15 +33,48 @@ await _relationStore.UpsertEdgeAsync(
             ct);
     }
 
-    public ValueTask ProjectAsync(
+    public async ValueTask ProjectAsync(
         WorkflowExecutionProjectionContext context,
         EventEnvelope envelope,
         CancellationToken ct = default)
     {
-        _ = context;
-        _ = envelope;
-        _ = ct;
-        return ValueTask.CompletedTask;
+        var payload = envelope.Payload;
+        if (payload == null)
+            return;
+
+        var runNodeId = BuildRunNodeId(context.RootActorId, context.CommandId);
+        var now = ResolveEventTimestamp(envelope);
+
+        if (payload.Is(StepRequestEvent.Descriptor))
+        {
+            var evt = payload.Unpack<StepRequestEvent>();
+            await UpsertStepRelationAsync(
+                context,
+                runNodeId,
+                evt.StepId,
+                evt.StepType,
+                evt.TargetRole,
+                workerId: "",
+                success: null,
+                now,
+                ct);
+            return;
+        }
+
+        if (payload.Is(StepCompletedEvent.Descriptor))
+        {
+            var evt = payload.Unpack<StepCompletedEvent>();
+            await UpsertStepRelationAsync(
+                context,
+                runNodeId,
+                evt.StepId,
+                stepType: "",
+                targetRole: "",
+                evt.WorkerId,
+                evt.Success,
+                now,
+                ct);
+        }
     }
 
     public async ValueTask CompleteAsync(
@@ -53,8 +82,7 @@ public async ValueTask CompleteAsync(
         IReadOnlyList<WorkflowExecutionTopologyEdge> topology,
         CancellationToken ct = default)
     {
-        var report = await _readModelStore.GetAsync(context.RootActorId, ct);
-        var completedAt = report?.EndedAt ?? DateTimeOffset.UtcNow;
+        var completedAt = DateTimeOffset.UtcNow;
         var runNodeId = BuildRunNodeId(context.RootActorId, context.CommandId);
 
         await _relationStore.UpsertNodeAsync(
@@ -79,10 +107,12 @@ await _relationStore.UpsertEdgeAsync(
 
         foreach (var edge in topology)
         {
-            var parentNodeId = NormalizeToken(edge.Parent);
-            var childNodeId = NormalizeToken(edge.Child);
-            if (parentNodeId.Length == 0 || childNodeId.Length == 0)
+            var rawParentNodeId = edge.Parent?.Trim() ?? "";
+            var rawChildNodeId = edge.Child?.Trim() ?? "";
+            if (rawParentNodeId.Length == 0 || rawChildNodeId.Length == 0)
                 continue;
+            var parentNodeId = NormalizeToken(rawParentNodeId);
+            var childNodeId = NormalizeToken(rawChildNodeId);
 
             await _relationStore.UpsertNodeAsync(
                 BuildActorNode(parentNodeId, context.WorkflowName, completedAt),
@@ -98,33 +128,101 @@ await _relationStore.UpsertEdgeAsync(
                     completedAt),
                 ct);
         }
+    }
 
-        if (report == null || report.Steps.Count == 0)
+    private async Task UpsertStepRelationAsync(
+        WorkflowExecutionProjectionContext context,
+        string runNodeId,
+        string stepId,
+        string stepType,
+        string targetRole,
+        string workerId,
+        bool? success,
+        DateTimeOffset updatedAt,
+        CancellationToken ct)
+    {
+        var rawStepId = stepId?.Trim() ?? "";
+        if (rawStepId.Length == 0)
             return;
 
-        foreach (var step in report.Steps)
+        var normalizedStepId = NormalizeToken(rawStepId);
+        var stepNodeId = BuildStepNodeId(context.RootActorId, normalizedStepId);
+        var stepTypeValue = stepType?.Trim() ?? "";
+        var targetRoleValue = targetRole?.Trim() ?? "";
+        var workerIdValue = workerId?.Trim() ?? "";
+        var successValue = success;
+        if (stepTypeValue.Length == 0 ||
+            targetRoleValue.Length == 0 ||
+            workerIdValue.Length == 0 ||
+            !successValue.HasValue)
         {
-            var stepId = NormalizeToken(step.StepId);
-            if (stepId.Length == 0)
-                continue;
+            var existingNode = await TryGetNodeAsync(stepNodeId, ct);
+            if (existingNode != null)
+            {
+                if (stepTypeValue.Length == 0 &&
+                    existingNode.Properties.TryGetValue("stepType", out var existingStepType))
+                {
+                    stepTypeValue = existingStepType;
+                }
 
-            var stepNodeId = BuildStepNodeId(context.RootActorId, stepId);
-            var stepUpdatedAt = step.CompletedAt ?? step.RequestedAt ?? completedAt;
-            await _relationStore.UpsertNodeAsync(
-                BuildStepNode(
-                    stepNodeId,
-                    context.RootActorId,
-                    step,
-                    stepUpdatedAt),
-                ct);
-            await _relationStore.UpsertEdgeAsync(
-                BuildEdge(
-                    runNodeId,
-                    stepNodeId,
-                    WorkflowExecutionRelationConstants.RelationContainsStep,
-                    stepUpdatedAt),
-                ct);
+                if (targetRoleValue.Length == 0 &&
+                    existingNode.Properties.TryGetValue("targetRole", out var existingTargetRole))
+                {
+                    targetRoleValue = existingTargetRole;
+                }
+
+                if (workerIdValue.Length == 0 &&
+                    existingNode.Properties.TryGetValue("workerId", out var existingWorkerId))
+                {
+                    workerIdValue = existingWorkerId;
+                }
+
+                if (!successValue.HasValue &&
+                    existingNode.Properties.TryGetValue("success", out var existingSuccess) &&
+                    bool.TryParse(existingSuccess, out var parsedSuccess))
+                {
+                    successValue = parsedSuccess;
+                }
+            }
         }
+
+        await _relationStore.UpsertNodeAsync(
+            BuildStepNode(
+                stepNodeId,
+                context.RootActorId,
+                normalizedStepId,
+                stepTypeValue,
+                targetRoleValue,
+                workerIdValue,
+                successValue,
+                updatedAt),
+            ct);
+        await _relationStore.UpsertEdgeAsync(
+            BuildEdge(
+                runNodeId,
+                stepNodeId,
+                WorkflowExecutionRelationConstants.RelationContainsStep,
+                updatedAt),
+            ct);
+    }
+
+    private async Task<ProjectionRelationNode?> TryGetNodeAsync(
+        string nodeId,
+        CancellationToken ct)
+    {
+        var subgraph = await _relationStore.GetSubgraphAsync(
+            new ProjectionRelationQuery
+            {
+                Scope = WorkflowExecutionRelationConstants.Scope,
+                RootNodeId = nodeId,
+                Direction = ProjectionRelationDirection.Both,
+                Depth = 1,
+                Take = 1,
+            },
+            ct);
+        return subgraph.Nodes.FirstOrDefault(x =>
+            string.Equals(x.NodeId, nodeId, StringComparison.Ordinal) &&
+            x.Properties.Count > 0);
     }
 
     private static ProjectionRelationNode BuildActorNode(
@@ -172,7 +270,11 @@ private static ProjectionRelationNode BuildRunNode(
     private static ProjectionRelationNode BuildStepNode(
         string stepNodeId,
         string rootActorId,
-        WorkflowExecutionStepTrace step,
+        string stepId,
+        string stepType,
+        string targetRole,
+        string workerId,
+        bool? success,
         DateTimeOffset updatedAt)
     {
         return new ProjectionRelationNode
@@ -183,11 +285,11 @@ private static ProjectionRelationNode BuildStepNode(
             Properties = new Dictionary<string, string>(StringComparer.Ordinal)
             {
                 ["rootActorId"] = NormalizeToken(rootActorId),
-                ["stepId"] = NormalizeToken(step.StepId),
-                ["stepType"] = step.StepType ?? "",
-                ["targetRole"] = step.TargetRole ?? "",
-                ["workerId"] = step.WorkerId ?? "",
-                ["success"] = step.Success?.ToString() ?? "",
+                ["stepId"] = NormalizeToken(stepId),
+                ["stepType"] = stepType ?? "",
+                ["targetRole"] = targetRole ?? "",
+                ["workerId"] = workerId ?? "",
+                ["success"] = success?.ToString() ?? "",
             },
             UpdatedAt = updatedAt,
         };
@@ -240,4 +342,16 @@ private static string NormalizeToken(string token)
         var normalized = token?.Trim() ?? "";
         return normalized.Length == 0 ? UnknownToken : normalized;
     }
+
+    private static DateTimeOffset ResolveEventTimestamp(EventEnvelope envelope)
+    {
+        var ts = envelope.Timestamp;
+        if (ts == null)
+            return DateTimeOffset.UtcNow;
+
+        var dt = ts.ToDateTime();
+        if (dt.Kind != DateTimeKind.Utc)
+            dt = DateTime.SpecifyKind(dt, DateTimeKind.Utc);
+        return new DateTimeOffset(dt);
+    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index 19f6cf63a..edd3e81c0 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -4,7 +4,11 @@
 
 ## 职责边界
 
-- 应用层投影端口实现：`IWorkflowExecutionProjectionPort`（实现类 `WorkflowExecutionProjectionService`）
+- 应用层投影端口实现：
+  - `IWorkflowExecutionProjectionLifecyclePort`（`Ensure/Attach/Detach/Release`）
+  - `IWorkflowExecutionProjectionQueryPort`（`Snapshot/Timeline/Relations/Subgraph`）
+  - 默认实现分别为 `WorkflowExecutionProjectionLifecycleService` 与 `WorkflowExecutionProjectionQueryService`
+  - 两个实现分别继承 `ProjectionLifecyclePortServiceBase` / `ProjectionQueryPortServiceBase`，通用端口编排已下沉到 `Aevatar.CQRS.Projection.Core`
 - 编排组件拆分（避免单类过重）：
   - `WorkflowProjectionActivationService`（projection 启动与上下文激活）
   - `WorkflowProjectionReleaseService`（idle 检测与停止/释放）
@@ -14,7 +18,7 @@
   - `WorkflowProjectionSinkFailurePolicy`（sink 异常策略）
   - `WorkflowProjectionReadModelUpdater`（read model 元信息更新）
   - `WorkflowProjectionQueryReader`（query 映射读取）
-  - `WorkflowReadModelSelectionPlanner`（统一 read model provider 归一化、mode 校验与 capability 选择参数生成）
+  - `WorkflowReadModelSelectionPlanner`（统一 read model/relation provider 归一化、mode 校验与 capability 选择参数生成）
 - 领域上下文：`IWorkflowExecutionProjectionContextFactory`、`WorkflowExecutionProjectionContext`
 - 实时输出契约：`WorkflowRunEvent`、`IWorkflowRunEventSink`、`WorkflowRunEventChannel`（定义于 `Aevatar.Workflow.Application.Abstractions`）
 - 领域投影实现：reducers、projectors、read model（不包含 Provider Store 实现）
@@ -31,7 +35,7 @@
 
 ## 统一运行链路
 
-1. `EnsureActorProjectionAsync` 由 `WorkflowExecutionProjectionService` 转发到 `WorkflowProjectionActivationService`，先通过 `WorkflowProjectionLeaseManager`（底层复用 `Aevatar.CQRS.Projection.Core` ownership coordinator）申请 ownership，再创建 projection 上下文并注册 actor stream 订阅
+1. `EnsureActorProjectionAsync` 由 `WorkflowExecutionProjectionLifecycleService` 转发到 `WorkflowProjectionActivationService`，先通过 `WorkflowProjectionLeaseManager`（底层复用 `Aevatar.CQRS.Projection.Core` ownership coordinator）申请 ownership，再创建 projection 上下文并注册 actor stream 订阅
 2. 每条 `EventEnvelope` 进入统一 coordinator，一对多调用已注册 projector
 3. `WorkflowExecutionReadModelProjector` 驱动 reducers 生成并更新 read model
 4. AI 通用事件通过 `Aevatar.Workflow.Extensions.AIProjection` 扩展接入，扩展内部复用 `Aevatar.AI.Projection` 的默认 applier + reducer，将事件写入 `WorkflowExecutionReport` 的 AI 能力字段，业务层无需重复维护映射代码
@@ -83,12 +87,15 @@ FAQ：
 
 ## Provider 配置
 
-- `WorkflowExecutionProjection:ReadModelProvider`：`InMemory`（默认）/`Elasticsearch`
+- `WorkflowExecutionProjection:ReadModelProvider`：`InMemory`（默认）/`Elasticsearch`/`Neo4j`
+- `WorkflowExecutionProjection:RelationProvider`：关系存储 provider；留空时回退到 `ReadModelProvider`
 - `WorkflowExecutionProjection:FailOnUnsupportedCapabilities`：能力不匹配时是否 fail-fast（默认 `true`）
 - `WorkflowExecutionProjection:ValidateReadModelProviderOnStartup`：是否在 Host 启动阶段预校验 Provider 选择与能力（默认 `true`）
+- `WorkflowExecutionProjection:ValidateRelationProviderOnStartup`：是否在 Host 启动阶段预校验 Relation Provider（默认 `true`）
 - `WorkflowExecutionProjection:ReadModelBindings`：ReadModel -> IndexKind 约束（如 `WorkflowExecutionReport: Document`）
 - 推荐统一配置入口：`Projection:ReadModel:*`（由 Infrastructure 映射到 Workflow 投影选项）
 - `Projection:ReadModel:Provider`：全局默认 Provider（当前由 `WorkflowCapabilityServiceCollectionExtensions` 覆盖到模块选项）
+- `Projection:ReadModel:RelationProvider`：全局默认 Relation Provider（覆盖到模块选项）
 - `Projection:ReadModel:FailOnUnsupportedCapabilities`：全局 fail-fast 策略
 - `Projection:ReadModel:Bindings:*`：全局 ReadModel -> IndexKind 约束
 - `Projection:ReadModel:Providers:Elasticsearch:Endpoints`：Elasticsearch endpoint 列表
diff --git a/src/workflow/README.md b/src/workflow/README.md
index c29aa760c..a0876bd62 100644
--- a/src/workflow/README.md
+++ b/src/workflow/README.md
@@ -74,7 +74,7 @@ sequenceDiagram
   participant CtxFactory as "WorkflowRunContextFactory"
   participant Engine as "WorkflowRunExecutionEngine"
   participant Resolver as "WorkflowRunActorResolver"
-  participant Port as "IWorkflowExecutionProjectionPort"
+  participant Port as "IWorkflowExecutionProjectionLifecyclePort"
   participant WFAgent as "WorkflowGAgent"
   participant Sink as "WorkflowRunEventChannel"
 
@@ -116,7 +116,7 @@ flowchart LR
   BUS["ProjectionSessionEventHub<WorkflowRunEvent>\nworkflow-run:{actorId}:{commandId}"]
   CH["WorkflowRunEventChannel"]
 
-  QP["WorkflowExecutionProjectionService(IWorkflowExecutionProjectionPort)"]
+  QP["Projection Ports(Lifecycle/Query)"]
   ACT["WorkflowProjectionActivationService"]
   REL["WorkflowProjectionReleaseService"]
   SUB["WorkflowProjectionSinkSubscriptionManager"]
@@ -215,8 +215,8 @@ sequenceDiagram
 - 传入 `actorId` 的 run 请求不允许切换 workflow；workflow 变更必须创建新 actor。
 - `WorkflowGAgent` 子 Actor ID 使用 `"{parentActorId}:{roleId}"` 命名空间，避免跨 workflow 根 Actor 冲突。
 - Actor 事件域不承载 CQRS 命令语义：不在 `EventEnvelope` metadata 与 `StartWorkflowEvent` 中传递 `commandId`。
-- `WorkflowExecutionProjectionService` 以 `ActorId` 为共享投影上下文键，同一 Actor 多次触发共享读模型与事件流。
-- `WorkflowExecutionProjectionService` 仅作为 facade，对外暴露统一端口；具体激活/释放/查询/sink 推送分别委托到 `Activation/Release/QueryReader/LiveSinkForwarder` 组件。
+- `WorkflowExecutionProjectionLifecycleService` 以 `ActorId` 为共享投影上下文键，同一 Actor 多次触发共享投影会话与事件流。
+- `WorkflowExecutionProjectionLifecycleService` 与 `WorkflowExecutionProjectionQueryService` 职责分离：生命周期与查询走独立端口，避免读写边界侵蚀。
 - Application/Projection 编排类受 CI 体量守卫约束（非空行数与依赖数上限），避免职责反弹。
 - Projection 启动并发（`Ensure/Release`）由 `projection:{rootActorId}` 协调 Actor 串行裁决，不依赖进程内 `SemaphoreSlim`。
 - `AttachLiveSink/DetachLiveSink` 通过 `workflow-run:{actorId}:{commandId}` 事件流订阅/退订，不在 `WorkflowExecutionProjectionContext` 维护 sink 事实态。
diff --git a/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs b/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
index 580184f85..2c4a37ea7 100644
--- a/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
+++ b/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
@@ -396,7 +396,9 @@ public async Task ResolveAsync_ShouldOnlyReturnReachableEdgesFromRoot()
     }
 }
 
-internal sealed class FakeProjectionService : IWorkflowExecutionProjectionPort
+internal sealed class FakeProjectionService :
+    IWorkflowExecutionProjectionLifecyclePort,
+    IWorkflowExecutionProjectionQueryPort
 {
     public bool ProjectionEnabled { get; set; } = true;
     public bool EnableActorQueryEndpointsValue { get; set; } = true;
diff --git a/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs b/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs
index b2b8c0963..4d84cad87 100644
--- a/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs
+++ b/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs
@@ -277,7 +277,7 @@ public CommandContext Create(
         }
     }
 
-    private sealed class CapturingProjectionPort : IWorkflowExecutionProjectionPort
+    private sealed class CapturingProjectionPort : IWorkflowExecutionProjectionLifecyclePort
     {
         public bool ProjectionEnabled { get; set; } = true;
         public bool EnableActorQueryEndpoints => false;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 0ba3c4b76..807621b32 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -87,7 +87,7 @@ public void AddWorkflowExecutionProjectionCQRS_ShouldUseInMemoryProviderByDefaul
     }
 
     [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchConfigured_ShouldResolveElasticsearchStore()
+    public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchConfiguredWithoutRelationProvider_ShouldFailFastOnRelationStore()
     {
         var services = new ServiceCollection();
         RegisterInMemoryProvider(services);
@@ -97,13 +97,34 @@ public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchConfigured_Shoul
 
         using var provider = services.BuildServiceProvider();
         var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        var relationStore = provider.GetRequiredService<IProjectionRelationStore>();
-
         store.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        relationStore.Should().BeOfType<ElasticsearchProjectionRelationStore>();
         var metadata = store.Should().BeAssignableTo<IProjectionReadModelStoreProviderMetadata>().Subject;
         metadata.ProviderCapabilities.SupportsIndexing.Should().BeTrue();
         metadata.ProviderCapabilities.IndexKinds.Should().Contain(ProjectionReadModelIndexKind.Document);
+
+        Action act = () => provider.GetRequiredService<IProjectionRelationStore>();
+        act.Should().Throw<ProjectionReadModelCapabilityValidationException>()
+            .Where(ex => ex.ReadModelType == typeof(ProjectionRelationNode));
+    }
+
+    [Fact]
+    public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchReadModelWithInMemoryRelationConfigured_ShouldResolveSplitProviders()
+    {
+        var services = new ServiceCollection();
+        RegisterInMemoryProvider(services);
+        RegisterElasticsearchProvider(services);
+        services.AddWorkflowExecutionProjectionCQRS(options =>
+        {
+            options.ReadModelProvider = ProjectionReadModelProviderNames.Elasticsearch;
+            options.RelationProvider = ProjectionReadModelProviderNames.InMemory;
+        });
+
+        using var provider = services.BuildServiceProvider();
+        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        var relationStore = provider.GetRequiredService<IProjectionRelationStore>();
+
+        store.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        relationStore.Should().BeOfType<InMemoryProjectionRelationStore>();
     }
 
     [Fact]
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
index 1f5f92a25..25972be12 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
@@ -13,6 +13,7 @@
 using Aevatar.Foundation.Abstractions.TypeSystem;
 using Aevatar.Foundation.Core.TypeSystem;
 using Aevatar.Workflow.Application.Abstractions.Projections;
+using Aevatar.Workflow.Application.Abstractions.Queries;
 using Aevatar.Workflow.Application.Abstractions.Runs;
 using Aevatar.Workflow.Core;
 using Aevatar.Workflow.Projection;
@@ -505,7 +506,7 @@ await act.Should().ThrowAsync<InvalidOperationException>()
         await sink.DisposeAsync();
     }
 
-    private static WorkflowExecutionProjectionService CreateService(
+    private static ProjectionPortsHarness CreateService(
         WorkflowExecutionProjectionOptions options,
         out InMemoryStreamProvider streams,
         out ObservableWorkflowExecutionReadModelStore store,
@@ -519,7 +520,7 @@ private static WorkflowExecutionProjectionService CreateService(
             clock);
     }
 
-    private static WorkflowExecutionProjectionService CreateService(
+    private static ProjectionPortsHarness CreateService(
         WorkflowExecutionProjectionOptions options,
         out InMemoryStreamProvider streams,
         out ObservableWorkflowExecutionReadModelStore store,
@@ -574,7 +575,10 @@ private static WorkflowExecutionProjectionService CreateService(
         var sinkManager = new WorkflowProjectionSinkSubscriptionManager(runEventStreamHub);
         var sinkFailurePolicy = new WorkflowProjectionSinkFailurePolicy(sinkManager, runEventStreamHub, resolvedClock);
         var readModelUpdater = new WorkflowProjectionReadModelUpdater(store, resolvedClock);
-        var queryReader = new WorkflowProjectionQueryReader(store, mapper);
+        var queryReader = new WorkflowProjectionQueryReader(
+            store,
+            mapper,
+            new InMemoryProjectionRelationStore());
         var activationService = new WorkflowProjectionActivationService(
             lifecycle,
             resolvedClock,
@@ -588,16 +592,19 @@ private static WorkflowExecutionProjectionService CreateService(
             leaseManager);
         var liveSinkForwarder = new WorkflowProjectionLiveSinkForwarder(sinkFailurePolicy);
 
-        return new WorkflowExecutionProjectionService(
+        var lifecyclePort = new WorkflowExecutionProjectionLifecycleService(
             options,
-            queryReader,
             activationService,
             releaseService,
             sinkManager,
             liveSinkForwarder);
+        var queryPort = new WorkflowExecutionProjectionQueryService(
+            options,
+            queryReader);
+        return new ProjectionPortsHarness(lifecyclePort, queryPort);
     }
 
-    private static WorkflowExecutionProjectionService CreateServiceForStartFailure(
+    private static ProjectionPortsHarness CreateServiceForStartFailure(
         IProjectionOwnershipCoordinator ownershipCoordinator,
         IProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>> lifecycle)
     {
@@ -609,7 +616,10 @@ private static WorkflowExecutionProjectionService CreateServiceForStartFailure(
         var sinkManager = new WorkflowProjectionSinkSubscriptionManager(runEventHub);
         var sinkFailurePolicy = new WorkflowProjectionSinkFailurePolicy(sinkManager, runEventHub, clock);
         var readModelUpdater = new WorkflowProjectionReadModelUpdater(store, clock);
-        var queryReader = new WorkflowProjectionQueryReader(store, mapper);
+        var queryReader = new WorkflowProjectionQueryReader(
+            store,
+            mapper,
+            new InMemoryProjectionRelationStore());
         var activationService = new WorkflowProjectionActivationService(
             lifecycle,
             clock,
@@ -623,17 +633,21 @@ private static WorkflowExecutionProjectionService CreateServiceForStartFailure(
             leaseManager);
         var liveSinkForwarder = new WorkflowProjectionLiveSinkForwarder(sinkFailurePolicy);
 
-        return new WorkflowExecutionProjectionService(
-            new WorkflowExecutionProjectionOptions
-            {
-                Enabled = true,
-                EnableActorQueryEndpoints = true,
-            },
-            queryReader,
+        var options = new WorkflowExecutionProjectionOptions
+        {
+            Enabled = true,
+            EnableActorQueryEndpoints = true,
+        };
+        var lifecyclePort = new WorkflowExecutionProjectionLifecycleService(
+            options,
             activationService,
             releaseService,
             sinkManager,
             liveSinkForwarder);
+        var queryPort = new WorkflowExecutionProjectionQueryService(
+            options,
+            queryReader);
+        return new ProjectionPortsHarness(lifecyclePort, queryPort);
     }
 
     private static IReadOnlyList<IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>> BuildReducers() =>
@@ -710,6 +724,80 @@ public MutableProjectionClock(DateTimeOffset utcNow)
         public DateTimeOffset UtcNow { get; set; }
     }
 
+    private sealed class ProjectionPortsHarness
+        : IWorkflowExecutionProjectionLifecyclePort,
+          IWorkflowExecutionProjectionQueryPort
+    {
+        private readonly IWorkflowExecutionProjectionLifecyclePort _lifecyclePort;
+        private readonly IWorkflowExecutionProjectionQueryPort _queryPort;
+
+        public ProjectionPortsHarness(
+            IWorkflowExecutionProjectionLifecyclePort lifecyclePort,
+            IWorkflowExecutionProjectionQueryPort queryPort)
+        {
+            _lifecyclePort = lifecyclePort;
+            _queryPort = queryPort;
+        }
+
+        public bool ProjectionEnabled => _lifecyclePort.ProjectionEnabled;
+
+        public bool EnableActorQueryEndpoints => _queryPort.EnableActorQueryEndpoints;
+
+        public Task<IWorkflowExecutionProjectionLease?> EnsureActorProjectionAsync(
+            string rootActorId,
+            string workflowName,
+            string input,
+            string commandId,
+            CancellationToken ct = default)
+            => _lifecyclePort.EnsureActorProjectionAsync(rootActorId, workflowName, input, commandId, ct);
+
+        public Task AttachLiveSinkAsync(
+            IWorkflowExecutionProjectionLease lease,
+            IWorkflowRunEventSink sink,
+            CancellationToken ct = default)
+            => _lifecyclePort.AttachLiveSinkAsync(lease, sink, ct);
+
+        public Task DetachLiveSinkAsync(
+            IWorkflowExecutionProjectionLease lease,
+            IWorkflowRunEventSink sink,
+            CancellationToken ct = default)
+            => _lifecyclePort.DetachLiveSinkAsync(lease, sink, ct);
+
+        public Task ReleaseActorProjectionAsync(
+            IWorkflowExecutionProjectionLease lease,
+            CancellationToken ct = default)
+            => _lifecyclePort.ReleaseActorProjectionAsync(lease, ct);
+
+        public Task<WorkflowActorSnapshot?> GetActorSnapshotAsync(
+            string actorId,
+            CancellationToken ct = default)
+            => _queryPort.GetActorSnapshotAsync(actorId, ct);
+
+        public Task<IReadOnlyList<WorkflowActorSnapshot>> ListActorSnapshotsAsync(
+            int take = 200,
+            CancellationToken ct = default)
+            => _queryPort.ListActorSnapshotsAsync(take, ct);
+
+        public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
+            string actorId,
+            int take = 200,
+            CancellationToken ct = default)
+            => _queryPort.ListActorTimelineAsync(actorId, take, ct);
+
+        public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+            string actorId,
+            int take = 200,
+            CancellationToken ct = default)
+            => _queryPort.GetActorRelationsAsync(actorId, take, ct);
+
+        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+            string actorId,
+            int depth = 2,
+            int take = 200,
+            CancellationToken ct = default)
+            => _queryPort.GetActorRelationSubgraphAsync(actorId, depth, take, ct);
+    }
+
     private sealed class ObservableWorkflowExecutionReadModelStore
         : IProjectionReadModelStore<WorkflowExecutionReport, string>
     {
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs
new file mode 100644
index 000000000..554942d1b
--- /dev/null
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs
@@ -0,0 +1,142 @@
+using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
+using Aevatar.Workflow.Core;
+using Aevatar.Workflow.Projection;
+using Aevatar.Workflow.Projection.Projectors;
+using Aevatar.Workflow.Projection.ReadModels;
+using FluentAssertions;
+using Google.Protobuf;
+using Google.Protobuf.WellKnownTypes;
+
+namespace Aevatar.Workflow.Host.Api.Tests;
+
+public sealed class WorkflowExecutionRelationProjectorTests
+{
+    [Fact]
+    public async Task ProjectAsync_WhenStepIdIsBlank_ShouldSkipContainsStepEdge()
+    {
+        var relationStore = new InMemoryProjectionRelationStore();
+        var projector = new WorkflowExecutionRelationProjector(relationStore);
+        var context = CreateContext();
+
+        await projector.InitializeAsync(context);
+        await projector.ProjectAsync(context, Wrap(new StepRequestEvent
+        {
+            StepId = "   ",
+            StepType = "llm_call",
+            TargetRole = "assistant",
+        }));
+
+        var runEdges = await relationStore.GetNeighborsAsync(new ProjectionRelationQuery
+        {
+            Scope = WorkflowExecutionRelationConstants.Scope,
+            RootNodeId = BuildRunNodeId(context),
+            Direction = ProjectionRelationDirection.Outbound,
+            Take = 50,
+        });
+
+        runEdges.Should().NotContain(x =>
+            string.Equals(x.RelationType, WorkflowExecutionRelationConstants.RelationContainsStep, StringComparison.Ordinal));
+    }
+
+    [Fact]
+    public async Task ProjectAsync_ShouldUpsertStepNodeFromRequestAndCompletionEvents()
+    {
+        var relationStore = new InMemoryProjectionRelationStore();
+        var projector = new WorkflowExecutionRelationProjector(relationStore);
+        var context = CreateContext();
+        var requestTime = new DateTime(2026, 2, 24, 8, 0, 0, DateTimeKind.Utc);
+        var completedTime = requestTime.AddSeconds(5);
+
+        await projector.InitializeAsync(context);
+        await projector.ProjectAsync(context, Wrap(new StepRequestEvent
+        {
+            StepId = "step-1",
+            StepType = "llm_call",
+            TargetRole = "assistant",
+        }, requestTime));
+        await projector.ProjectAsync(context, Wrap(new StepCompletedEvent
+        {
+            StepId = "step-1",
+            WorkerId = "assistant-1",
+            Success = true,
+            Output = "done",
+        }, completedTime));
+
+        var subgraph = await relationStore.GetSubgraphAsync(new ProjectionRelationQuery
+        {
+            Scope = WorkflowExecutionRelationConstants.Scope,
+            RootNodeId = BuildRunNodeId(context),
+            Direction = ProjectionRelationDirection.Outbound,
+            Depth = 2,
+            Take = 50,
+        });
+
+        subgraph.Edges.Should().ContainSingle(x =>
+            string.Equals(x.RelationType, WorkflowExecutionRelationConstants.RelationContainsStep, StringComparison.Ordinal));
+        var stepNode = subgraph.Nodes.Single(x =>
+            string.Equals(x.NodeType, WorkflowExecutionRelationConstants.StepNodeType, StringComparison.Ordinal));
+        stepNode.Properties["stepType"].Should().Be("llm_call");
+        stepNode.Properties["targetRole"].Should().Be("assistant");
+        stepNode.Properties["workerId"].Should().Be("assistant-1");
+        stepNode.Properties["success"].Should().Be("True");
+        stepNode.UpdatedAt.Should().Be(new DateTimeOffset(completedTime));
+    }
+
+    [Fact]
+    public async Task CompleteAsync_WhenTopologyContainsBlankNodes_ShouldSkipUnknownRelations()
+    {
+        var relationStore = new InMemoryProjectionRelationStore();
+        var projector = new WorkflowExecutionRelationProjector(relationStore);
+        var context = CreateContext();
+
+        await projector.InitializeAsync(context);
+        await projector.CompleteAsync(
+            context,
+            [
+                new WorkflowExecutionTopologyEdge("root-1", "worker-1"),
+                new WorkflowExecutionTopologyEdge("   ", "worker-2"),
+                new WorkflowExecutionTopologyEdge("root-2", "  "),
+            ]);
+
+        var subgraph = await relationStore.GetSubgraphAsync(new ProjectionRelationQuery
+        {
+            Scope = WorkflowExecutionRelationConstants.Scope,
+            RootNodeId = "root-1",
+            Direction = ProjectionRelationDirection.Both,
+            Depth = 2,
+            Take = 100,
+        });
+
+        subgraph.Nodes.Should().NotContain(x => string.Equals(x.NodeId, "unknown", StringComparison.Ordinal));
+        subgraph.Edges.Should().Contain(x =>
+            string.Equals(x.RelationType, WorkflowExecutionRelationConstants.RelationChildOf, StringComparison.Ordinal) &&
+            string.Equals(x.FromNodeId, "root-1", StringComparison.Ordinal) &&
+            string.Equals(x.ToNodeId, "worker-1", StringComparison.Ordinal));
+        subgraph.Edges.Should().NotContain(x =>
+            string.Equals(x.FromNodeId, "unknown", StringComparison.Ordinal) ||
+            string.Equals(x.ToNodeId, "unknown", StringComparison.Ordinal));
+    }
+
+    private static WorkflowExecutionProjectionContext CreateContext() => new()
+    {
+        ProjectionId = "projection-relation",
+        CommandId = "cmd-1",
+        RootActorId = "root",
+        WorkflowName = "direct",
+        StartedAt = new DateTimeOffset(2026, 2, 24, 7, 0, 0, TimeSpan.Zero),
+        Input = "hello",
+    };
+
+    private static EventEnvelope Wrap(IMessage evt, DateTime? utcTimestamp = null) => new()
+    {
+        Id = Guid.NewGuid().ToString("N"),
+        Timestamp = Timestamp.FromDateTime((utcTimestamp ?? DateTime.UtcNow).ToUniversalTime()),
+        Payload = Any.Pack(evt),
+        PublisherId = "root",
+        Direction = EventDirection.Down,
+    };
+
+    private static string BuildRunNodeId(WorkflowExecutionProjectionContext context) =>
+        $"run:{context.RootActorId}:{context.CommandId}";
+}
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
index dc94ce5f6..f977e9f02 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
@@ -159,7 +159,10 @@ await store.UpsertAsync(new WorkflowExecutionReport
                 RoleReplyCount = 1,
             },
         });
-        var reader = new WorkflowProjectionQueryReader(store, new WorkflowExecutionReadModelMapper());
+        var reader = new WorkflowProjectionQueryReader(
+            store,
+            new WorkflowExecutionReadModelMapper(),
+            new InMemoryProjectionRelationStore());
 
         var snapshot = await reader.GetActorSnapshotAsync("actor-3");
         var timeline = await reader.ListActorTimelineAsync("actor-3", take: 2);
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs
index e16b9d8eb..fc40d3f8c 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs
@@ -23,11 +23,14 @@ public void Build_WhenProviderIsEmpty_ShouldFallbackToInMemoryAndResolveBindings
 
         var plan = _planner.Build(options);
 
-        plan.SelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
-        plan.SelectionOptions.FailOnUnsupportedCapabilities.Should().BeFalse();
-        plan.Requirements.RequiresIndexing.Should().BeTrue();
-        plan.Requirements.RequiredIndexKinds.Should().ContainSingle()
+        plan.ReadModelSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
+        plan.ReadModelSelectionOptions.FailOnUnsupportedCapabilities.Should().BeFalse();
+        plan.ReadModelRequirements.RequiresIndexing.Should().BeTrue();
+        plan.ReadModelRequirements.RequiredIndexKinds.Should().ContainSingle()
             .Which.Should().Be(ProjectionReadModelIndexKind.Document);
+        plan.RelationSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
+        plan.RelationRequirements.RequiresRelations.Should().BeTrue();
+        plan.RelationRequirements.RequiresRelationTraversal.Should().BeTrue();
     }
 
     [Fact]
@@ -40,7 +43,23 @@ public void Build_ShouldTrimConfiguredProviderName()
 
         var plan = _planner.Build(options);
 
-        plan.SelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Neo4j);
+        plan.ReadModelSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Neo4j);
+        plan.RelationSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Neo4j);
+    }
+
+    [Fact]
+    public void Build_WhenRelationProviderConfigured_ShouldUseRelationProvider()
+    {
+        var options = new WorkflowExecutionProjectionOptions
+        {
+            ReadModelProvider = ProjectionReadModelProviderNames.Elasticsearch,
+            RelationProvider = "  InMemory  ",
+        };
+
+        var plan = _planner.Build(options);
+
+        plan.ReadModelSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Elasticsearch);
+        plan.RelationSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
     }
 
     [Fact]
diff --git a/tools/ci/architecture_guards.sh b/tools/ci/architecture_guards.sh
index 4458388ba..985a20930 100755
--- a/tools/ci/architecture_guards.sh
+++ b/tools/ci/architecture_guards.sh
@@ -508,8 +508,8 @@ if rg -n "TryGetContext\(" src; then
   exit 1
 fi
 
-if rg -n "SemaphoreSlim" src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionService.cs; then
-  echo "WorkflowExecutionProjectionService must not use process-local SemaphoreSlim for projection start arbitration."
+if rg -n "SemaphoreSlim" src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionLifecycleService.cs; then
+  echo "WorkflowExecutionProjectionLifecycleService must not use process-local SemaphoreSlim for projection start arbitration."
   exit 1
 fi
 
@@ -518,17 +518,30 @@ if rg -n "Dictionary<|ConcurrentDictionary<" src/Aevatar.CQRS.Projection.Core/Or
   exit 1
 fi
 
+lifecycle_port="src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionLifecyclePort.cs"
+query_port="src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs"
+
+if [ ! -f "${lifecycle_port}" ] || [ ! -f "${query_port}" ]; then
+  echo "Workflow projection ports must be split into lifecycle/query contracts."
+  exit 1
+fi
+
 if rg -n "Task\s+AttachLiveSinkAsync\(\s*string\s+actorId|Task\s+DetachLiveSinkAsync\(\s*string\s+actorId|Task\s+ReleaseActorProjectionAsync\(\s*string\s+actorId" \
-  src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionPort.cs
+  "${lifecycle_port}"
 then
-  echo "Workflow projection port must use lease/session handles instead of actorId context lookup."
+  echo "Workflow projection lifecycle port must use lease/session handles instead of actorId context lookup."
+  exit 1
+fi
+
+if ! rg -n "IWorkflowExecutionProjectionLease" "${lifecycle_port}" >/dev/null; then
+  echo "Workflow projection lifecycle port must depend on IWorkflowExecutionProjectionLease."
   exit 1
 fi
 
-if ! rg -n "IWorkflowExecutionProjectionLease" \
-  src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionPort.cs >/dev/null
+if rg -n "EnsureActorProjectionAsync|AttachLiveSinkAsync|DetachLiveSinkAsync|ReleaseActorProjectionAsync" \
+  "${query_port}"
 then
-  echo "Workflow projection port must depend on IWorkflowExecutionProjectionLease."
+  echo "Workflow projection query port must not include lifecycle operations."
   exit 1
 fi
 

From dceaaa3c3e15550cb82d894e653b68d1e08a7060 Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Tue, 24 Feb 2026 17:08:25 +0800
Subject: [PATCH 22/46] Refactor Elasticsearch Provider and Enhance ReadModel
 Architecture

- Updated Elasticsearch provider capabilities to align with actual implementations, removing unsupported alias/schema validation declarations.
- Introduced optimistic concurrency control (OCC) in `MutateAsync` to handle conflicts with retry logic.
- Implemented a new `MissingIndexBehavior` option to manage index absence scenarios, defaulting to fail-fast.
- Enforced binding key requirements to use `Type.FullName`, eliminating ambiguity in read model bindings.
- Adjusted provider registration to be conditional based on configuration, improving clarity and reducing potential errors.
- Enhanced documentation to reflect these architectural changes and provide clearer guidance for implementation.
---
 docs/CQRS_ARCHITECTURE.md                     |   2 +
 ...review-remediation-blueprint-2026-02-24.md | 255 ++++++++++++++++
 ...odel-graph-relations-refactor-blueprint.md |   8 +
 .../ProjectionReadModelCapabilityValidator.cs |  12 +-
 .../ElasticsearchMissingIndexBehavior.cs      |   7 +
 ...icsearchProjectionReadModelStoreOptions.cs |   4 +
 .../ServiceCollectionExtensions.cs            |   8 +-
 .../README.md                                 |   5 +-
 .../ElasticsearchProjectionReadModelStore.cs  | 284 +++++++++++++++---
 .../ElasticsearchProjectionRelationStore.cs   |   4 +-
 .../ProjectionReadModelBindingResolver.cs     |  15 +-
 src/Aevatar.Foundation.Projection/README.md   |   2 +-
 .../ReadModels/AevatarReadModelBase.cs        |   4 +-
 .../Queries/WorkflowExecutionQueryModels.cs   |   2 +
 ...owCapabilityServiceCollectionExtensions.cs |  33 +-
 .../WorkflowExecutionReportWriter.cs          |   2 +
 .../WorkflowExecutionProjectionOptions.cs     |   2 +-
 .../WorkflowProjectionReadModelUpdater.cs     |  11 +-
 .../WorkflowReadModelSelectionPlanner.cs      |  21 +-
 .../WorkflowExecutionReadModelProjector.cs    |   9 +-
 .../Aevatar.Workflow.Projection/README.md     |   5 +-
 .../ReadModels/WorkflowExecutionReadModel.cs  |   2 +
 .../WorkflowExecutionReadModelMapper.cs       |   2 +-
 .../WorkflowExecutionProjectionMutations.cs   |   3 +-
 ...tionProviderServiceCollectionExtensions.cs | 159 +++++++---
 ...chProjectionReadModelStoreBehaviorTests.cs | 191 ++++++++++++
 .../ProjectionReadModelRuntimeTests.cs        |  20 +-
 .../ProjectionReadModelStoreSelectorTests.cs  |  26 ++
 ...lowExecutionProjectionRegistrationTests.cs |   6 +-
 ...WorkflowExecutionProjectionServiceTests.cs |   4 +
 ...orkflowExecutionReadModelProjectorTests.cs |   2 +
 .../WorkflowHostingExtensionsCoverageTests.cs |  51 +++-
 .../WorkflowReadModelSelectionPlannerTests.cs |  49 ++-
 33 files changed, 1066 insertions(+), 144 deletions(-)
 create mode 100644 docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchMissingIndexBehavior.cs
 create mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs

diff --git a/docs/CQRS_ARCHITECTURE.md b/docs/CQRS_ARCHITECTURE.md
index 4bce64725..5360bb8fb 100644
--- a/docs/CQRS_ARCHITECTURE.md
+++ b/docs/CQRS_ARCHITECTURE.md
@@ -45,6 +45,8 @@ flowchart LR
 3. 未命中 reducer 的事件必须为 no-op。
 4. Workflow 投影生命周期通过 lease/session 句柄管理，不允许 `actorId -> context` 反查。
 5. 同一 `EventEnvelope` 分发到多个 projector 时采用“一对多全分支尝试”语义：单个 projector 失败不阻断其他 projector 执行，最终以聚合异常统一回传。
+6. `Projection:ReadModel:Bindings` 的 key 必须使用 read model `Type.FullName`，禁止短类名绑定。
+7. Host 组合层按配置仅注册所需 provider 组合，不允许无条件并列注册 InMemory/Elasticsearch/Neo4j。
 
 ## 5.1 编排减重落地（2026-02-22）
 
diff --git a/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md b/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
new file mode 100644
index 000000000..a78a33455
--- /dev/null
+++ b/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
@@ -0,0 +1,255 @@
+# Projection Provider 评审问题重构蓝图（2026-02-24）
+
+- 状态：Implemented
+- 变更类型：Breaking Refactor（不考虑兼容性）
+- 输入来源：本轮 code review 7 项问题（3 Blocking / 2 Major / 2 Minor）
+
+## 1. 执行目标
+
+1. 让 Provider 能力声明与真实实现严格一致，避免误导选择器与启动校验。
+2. 为 Elasticsearch ReadModel 写入引入可验证的并发安全（OCC），消除 stale write 覆盖。
+3. 清理 Host 组合层多 Provider 默认并存导致的选择歧义。
+4. 对索引缺失、绑定冲突、排序稳定性、能力匹配语义做 fail-fast 与确定性收敛。
+5. 通过测试与 CI 门禁固化上述规则，避免回归。
+
+## 2. 问题清单（Review 输入映射）
+
+| ID | Severity | 证据位置 | 问题摘要 |
+|---|---|---|---|
+| B1 | Blocking | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs:26` + `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:353` | Elasticsearch 声明 `supportsAliases=true`、`supportsSchemaValidation=true`，但无对应实现。 |
+| B2 | Blocking | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:76` + `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:174` | `MutateAsync` 读改写 + 普通 PUT，缺少 OCC，重放/重试/并发存在覆盖风险。 |
+| B3 | Blocking | `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs:26` + `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs:49` | 同一 ReadModel 同时注册多个 Provider，未显式指定时选择歧义。 |
+| M1 | Major | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:105` + `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:127` | `AutoCreateIndex=false` 且索引缺失时被当成无数据，掩盖配置错误。 |
+| M2 | Major | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs:43` | 绑定解析 `Type.Name` 优先于 `FullName`，同名类型误绑定风险。 |
+| N1 | Minor | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:241` | `ListSortField` 为空时不排序，返回顺序不稳定。 |
+| N2 | Minor | `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs:24` | `RequiredIndexKinds` 使用 `Overlaps`（任一匹配），语义偏宽松。 |
+
+## 3. 目标架构决策（To-Be）
+
+### 3.1 B1 能力声明真实性（Capability Truthfulness）
+
+1. 立即收敛为“声明即实现”：Elasticsearch ReadModel/Relation provider 的 `supportsAliases` 与 `supportsSchemaValidation` 统一改为 `false`。
+2. 不在本轮引入“空能力声明 + 未来补实现”的过渡状态。
+3. README 与运行日志输出同步能力矩阵，避免二义性。
+
+设计原则：
+
+- 能力字段仅表达已落地、可被测试验证的行为。
+- Provider 选择与启动校验不允许依赖“计划能力”。
+
+### 3.2 B2 写入并发安全（OCC）
+
+1. Elasticsearch Provider 引入 `seq_no + primary_term` 的乐观并发控制。
+2. `MutateAsync` 改为：`GET(_seq_no/_primary_term/_source) -> mutate -> PUT(if_seq_no/if_primary_term)`，冲突时有限重试。
+3. 冲突超过重试上限后抛出明确并发异常（包含 `index/key/retries`），不静默覆盖。
+4. `UpsertAsync` 保持直接写入，但对“更新路径”也支持可选 OCC 参数扩展点。
+
+设计原则：
+
+- 读改写必须具备并发冲突检测能力。
+- 重放/重试场景下禁止“最后写入者覆盖”。
+
+### 3.3 B3 Provider 组合层去歧义
+
+1. Host 组合层不再无条件注册 InMemory/Elasticsearch/Neo4j 三套 ReadModel Provider。
+2. 改为“按配置按需注册”：仅注册 `ReadModelProvider` 与 `RelationProvider` 实际需要的 provider。
+3. 若配置为空或未知 provider，启动阶段直接 fail-fast 并给出配置路径提示（`Projection:ReadModel:Provider` / `Projection:ReadModel:RelationProvider`）。
+4. 删除隐式默认推断，避免环境切换时行为漂移。
+
+设计原则：
+
+- 组合层负责消除二义性，不把歧义下放到运行时选择器。
+- 配置错误要在启动期暴露，不延迟到首个请求。
+
+### 3.4 M1 索引缺失策略显式化
+
+1. 新增 `MissingIndexBehavior`（建议枚举）：`Throw` / `WarnAndReturnEmpty`。
+2. 默认 `Throw`（breaking）：`AutoCreateIndex=false` 且索引不存在时，`Get/List` 抛错。
+3. `WarnAndReturnEmpty` 仅作为开发调试模式，不作为生产默认。
+4. 日志与指标输出：`provider/index/operation/behavior`。
+
+### 3.5 M2 绑定解析确定性
+
+1. 绑定键只接受 `Type.FullName`（breaking）。不再使用 `Type.Name` 回退。
+2. 解析失败时抛出结构化异常，明确给出期望键名示例。
+3. 启动校验增加“绑定键格式检查”，禁止短名键混入。
+
+### 3.6 N1 List 顺序稳定性
+
+1. `ListAsync` 始终带排序条件。
+2. 当 `ListSortField` 为空时，默认按 `CreatedAt desc -> _id desc` 排序，优先按创建时间倒序并保证稳定输出。
+3. 在 README 中明确排序语义与默认行为。
+
+### 3.7 N2 RequiredIndexKinds 语义收紧
+
+1. 能力校验由“任一命中（Overlaps）”改为“全部包含（AllContained）”。
+2. 未来如需“任一命中”语义，必须通过显式匹配模式字段表达，不能默认放宽。
+
+## 4. 详细改造清单（按代码层次）
+
+### 4.1 Abstractions 层
+
+目标文件：
+
+- `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs`
+- `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs`（如需引入匹配模式）
+
+改造项：
+
+1. `RequiredIndexKinds` 校验从 `Overlaps` 切换为 `All(...)`。
+2. 如保留双语义，新增显式 `IndexKindMatchMode`，默认 `All`。
+
+### 4.2 Runtime 层
+
+目标文件：
+
+- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs`
+- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs`
+
+改造项：
+
+1. Binding resolver 仅解析 `FullName` 键。
+2. 异常消息增强：输出 read model type + 期望配置键 + 实际键列表（截断）。
+3. 选择器错误日志保持结构化，补充“配置缺失/未知 provider”的专有 reason。
+
+### 4.3 Elasticsearch Provider 层
+
+目标文件：
+
+- `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs`
+- `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs`
+- `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs`
+- `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md`
+
+改造项：
+
+1. 能力声明修正：`supportsAliases=false`、`supportsSchemaValidation=false`。
+2. OCC 落地：
+   - 读取文档时抓取 `_seq_no`、`_primary_term`。
+   - 更新请求带 `if_seq_no`、`if_primary_term`。
+   - 冲突重试（可配置上限）。
+3. 索引缺失行为策略化：新增 `MissingIndexBehavior` 与默认 `Throw`。
+4. `ListAsync` 默认排序兜底为 `CreatedAt desc -> _id desc`。
+5. 文档更新：能力矩阵、排序语义、索引缺失策略、并发冲突行为。
+
+### 4.4 Workflow Host 组合层
+
+目标文件：
+
+- `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
+- `src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`
+- `src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs`
+- `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs`
+- `src/workflow/Aevatar.Workflow.Projection/README.md`
+
+改造项：
+
+1. Provider 注册改为按需注册，不再全量注册三套 provider。
+2. 配置缺失与未知 provider 启动即失败。
+3. 移除隐式 provider 默认回退行为（保持配置显式化）。
+4. 文档示例统一改为 `FullName` 绑定键。
+
+## 5. 测试计划（必须新增）
+
+### 5.1 单元测试
+
+目标项目：`test/Aevatar.CQRS.Projection.Core.Tests`
+
+新增/改造用例：
+
+1. 能力声明一致性：Elasticsearch capability 不再声明 alias/schema 支持。
+2. `RequiredIndexKinds` 全包含语义测试（正例/反例）。
+3. Binding resolver 仅 FullName：短名键失败、FullName 成功。
+
+### 5.2 组件/集成测试
+
+目标项目：
+
+- `test/Aevatar.CQRS.Projection.Core.Tests`
+- `test/Aevatar.Workflow.Host.Api.Tests`
+
+新增/改造用例：
+
+1. Elasticsearch OCC 并发冲突测试：并发 mutate 不发生静默覆盖，冲突可观测。
+2. `AutoCreateIndex=false` 且索引缺失：默认抛错；`WarnAndReturnEmpty` 下返回空并记录警告。
+3. Host 按需注册：仅配置单 provider 时无歧义；空配置启动失败；未知 provider 启动失败。
+4. `ListAsync` 默认排序稳定性测试（同一数据集多次读取顺序一致）。
+
+### 5.3 回归验证命令
+
+1. `dotnet build aevatar.slnx --nologo`
+2. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
+3. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
+4. `dotnet test aevatar.slnx --nologo`
+5. `bash tools/ci/architecture_guards.sh`
+6. `bash tools/ci/test_stability_guards.sh`
+
+## 6. 实施阶段（WBS）
+
+### Phase 0（Blocking，必须先完成）
+
+1. 修正 Elasticsearch capability 声明（B1）。
+2. 引入 OCC 并发控制与冲突异常（B2）。
+3. Host 组合层改为按需注册 + 显式配置 fail-fast（B3）。
+
+交付标准：
+
+1. 3 个 blocking 问题对应测试全部通过。
+2. 无配置歧义路径可进入运行期。
+
+### Phase 1（Major）
+
+1. 索引缺失策略改为显式配置且默认抛错（M1）。
+2. Binding resolver 改为 FullName-only 并补齐启动校验（M2）。
+
+交付标准：
+
+1. 配置错误在启动阶段暴露。
+2. 读模型绑定无短名误绑定路径。
+
+### Phase 2（Minor + 文档收口）
+
+1. List 默认排序兜底（N1）。
+2. IndexKind 全包含语义（N2）。
+3. README/架构文档与配置示例统一更新。
+
+交付标准：
+
+1. 行为确定性增强且文档可执行。
+2. 全量构建/测试/门禁通过。
+
+## 7. 验收标准（Definition of Done）
+
+1. 所有 review 项对应的代码路径均有测试覆盖。
+2. Provider 能力声明与实现一致，不存在“声明支持但无实现”的字段。
+3. Elasticsearch 读改写路径具备 OCC，冲突有确定性行为（重试或失败）。
+4. Workflow Host Provider 组合无歧义，配置缺失/错误启动即失败。
+5. Binding 只接受 FullName，消除跨命名空间同名冲突风险。
+6. List 默认顺序稳定。
+7. CI 门禁与全量测试通过，文档与实现一致。
+
+## 8. 风险与控制
+
+1. 风险：去除短名绑定与隐式 provider 默认值会导致旧配置启动失败。
+2. 控制：错误信息必须指向具体配置路径，并在 README 给出新配置示例。
+3. 风险：OCC 重试增加写延迟。
+4. 控制：重试次数与超时可配置，冲突率纳入日志/指标观察。
+
+## 9. 文档同步清单
+
+需要同步更新：
+
+1. `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md`
+2. `src/workflow/Aevatar.Workflow.Projection/README.md`
+3. `docs/CQRS_ARCHITECTURE.md`（Provider 选择与 binding 规则）
+4. `docs/architecture/readmodel-graph-relations-refactor-blueprint.md`（补充本次 hardening 决策链接）
+
+## 10. 本轮实施结果（2026-02-24）
+
+1. 已完成 B1/B2/B3、M1/M2、N1/N2 全部代码改造与测试补齐。
+2. 验证结果：
+   - `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`：通过。
+   - `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`：通过。
+   - `dotnet test aevatar.slnx --nologo`：通过。
+   - `bash tools/ci/architecture_guards.sh`：通过。
+   - `bash tools/ci/test_stability_guards.sh`：通过。
diff --git a/docs/architecture/readmodel-graph-relations-refactor-blueprint.md b/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
index 471528212..67fae2883 100644
--- a/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
+++ b/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
@@ -329,3 +329,11 @@ flowchart LR
 ### 17.3 兼容性声明
 1. 本次重构为不兼容变更，已删除 `IWorkflowExecutionProjectionPort`。
 2. 旧接口调用方必须迁移到 Lifecycle/Query 双端口。
+
+## 18. Provider 硬化补充（2026-02-24）
+1. Elasticsearch 能力声明已收敛为真实实现：不再声明 alias/schema validation 能力。
+2. Elasticsearch `MutateAsync` 已引入 `seq_no/primary_term` OCC，冲突路径具备重试与失败语义。
+3. `AutoCreateIndex=false` 且索引缺失默认 fail-fast，支持 `MissingIndexBehavior=WarnAndReturnEmpty` 调试模式。
+4. ReadModel binding 已收敛为 `Type.FullName` 键，短名键直接抛配置异常。
+5. Workflow Host provider 注册改为按配置按需注册，消除多 provider 未指定歧义。
+6. 详见：`docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md`。
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs
index 4ee3c55ee..c03febeca 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs
@@ -21,10 +21,16 @@ public static IReadOnlyList<string> Validate(
                 violations.Add(
                     $"requires index kinds [{string.Join(", ", requirements.RequiredIndexKinds)}], but provider indexing is disabled");
             }
-            else if (!requirements.RequiredIndexKinds.Overlaps(capabilities.IndexKinds))
+            else
             {
-                violations.Add(
-                    $"required index kinds [{string.Join(", ", requirements.RequiredIndexKinds)}] are not supported by provider kinds [{string.Join(", ", capabilities.IndexKinds)}]");
+                var missingKinds = requirements.RequiredIndexKinds
+                    .Where(kind => !capabilities.IndexKinds.Contains(kind))
+                    .ToList();
+                if (missingKinds.Count > 0)
+                {
+                    violations.Add(
+                        $"required index kinds [{string.Join(", ", requirements.RequiredIndexKinds)}] are not fully supported by provider kinds [{string.Join(", ", capabilities.IndexKinds)}]; missing kinds [{string.Join(", ", missingKinds)}]");
+                }
             }
         }
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchMissingIndexBehavior.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchMissingIndexBehavior.cs
new file mode 100644
index 000000000..bf7a50c48
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchMissingIndexBehavior.cs
@@ -0,0 +1,7 @@
+namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
+
+public enum ElasticsearchMissingIndexBehavior
+{
+    Throw = 0,
+    WarnAndReturnEmpty = 1,
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs
index 7628858fa..21121ae17 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs
@@ -12,6 +12,10 @@ public sealed class ElasticsearchProjectionReadModelStoreOptions
 
     public bool AutoCreateIndex { get; set; } = true;
 
+    public ElasticsearchMissingIndexBehavior MissingIndexBehavior { get; set; } = ElasticsearchMissingIndexBehavior.Throw;
+
+    public int MutateMaxRetryCount { get; set; } = 3;
+
     public string Username { get; set; } = "";
 
     public string Password { get; set; } = "";
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index 755e0fc63..5fe6cc4bf 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -27,8 +27,8 @@ public static IServiceCollection AddElasticsearchReadModelStoreRegistration<TRea
                     providerName,
                     supportsIndexing: true,
                     indexKinds: [ProjectionReadModelIndexKind.Document],
-                    supportsAliases: true,
-                    supportsSchemaValidation: true),
+                    supportsAliases: false,
+                    supportsSchemaValidation: false),
                 provider => new ElasticsearchProjectionReadModelStore<TReadModel, TKey>(
                     optionsFactory(provider),
                     indexScope,
@@ -51,8 +51,8 @@ public static IServiceCollection AddElasticsearchRelationStoreRegistration(
                     providerName,
                     supportsIndexing: true,
                     indexKinds: [ProjectionReadModelIndexKind.Document],
-                    supportsAliases: true,
-                    supportsSchemaValidation: true,
+                    supportsAliases: false,
+                    supportsSchemaValidation: false,
                     supportsRelations: false,
                     supportsRelationTraversal: false),
                 _ => new ElasticsearchProjectionRelationStore(providerName)));
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
index 12d6d1cff..aac8f9bc4 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
@@ -4,8 +4,11 @@
 
 - 不依赖任何业务域 read model。
 - 通过 `IProjectionReadModelStoreRegistration<TReadModel, TKey>` 与上层模块解耦集成。
-- 能力声明：`Document` 索引、alias、schema validation。
+- 能力声明：`Document` 索引（不声明 alias/schema validation 能力）。
 - 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
+- `MutateAsync` 基于 `seq_no/primary_term` 执行 OCC（冲突可重试，超限失败）。
+- `AutoCreateIndex=false` 时可通过 `MissingIndexBehavior` 控制索引缺失行为（默认抛错）。
+- `ListSortField` 为空时默认按 `CreatedAt desc -> _id desc` 排序，优先按创建时间倒序并保证稳定性。
 
 ## DI 注册
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
index 77efa698f..94216dd28 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
@@ -14,6 +14,9 @@ public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
       IDisposable
     where TReadModel : class
 {
+    private const string DefaultListPrimarySortField = "CreatedAt";
+    private const string DefaultListTiebreakSortField = "_id";
+
     private readonly HttpClient _httpClient;
     private readonly Func<TReadModel, TKey> _keySelector;
     private readonly Func<TKey, string> _keyFormatter;
@@ -21,6 +24,8 @@ public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
     private readonly int _listTakeMax;
     private readonly bool _autoCreateIndex;
     private readonly string _listSortField;
+    private readonly ElasticsearchMissingIndexBehavior _missingIndexBehavior;
+    private readonly int _mutateMaxRetryCount;
     private readonly ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>> _logger;
     private readonly SemaphoreSlim _indexInitializationLock = new(1, 1);
     private readonly JsonSerializerOptions _jsonOptions = new()
@@ -35,17 +40,18 @@ public ElasticsearchProjectionReadModelStore(
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
         string providerName = ProjectionReadModelProviderNames.Elasticsearch,
-        ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>? logger = null)
+        ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>? logger = null,
+        HttpMessageHandler? httpMessageHandler = null)
     {
         ArgumentNullException.ThrowIfNull(options);
         ArgumentNullException.ThrowIfNull(keySelector);
 
         var endpoint = ResolvePrimaryEndpoint(options.Endpoints);
-        _httpClient = new HttpClient
-        {
-            BaseAddress = endpoint,
-            Timeout = TimeSpan.FromMilliseconds(Math.Max(500, options.RequestTimeoutMs)),
-        };
+        _httpClient = httpMessageHandler == null
+            ? new HttpClient()
+            : new HttpClient(httpMessageHandler, disposeHandler: true);
+        _httpClient.BaseAddress = endpoint;
+        _httpClient.Timeout = TimeSpan.FromMilliseconds(Math.Max(500, options.RequestTimeoutMs));
 
         if (!string.IsNullOrWhiteSpace(options.Username))
         {
@@ -61,6 +67,8 @@ public ElasticsearchProjectionReadModelStore(
         _indexName = BuildIndexName(options.IndexPrefix, normalizedScope);
         _listTakeMax = options.ListTakeMax > 0 ? options.ListTakeMax : 200;
         _autoCreateIndex = options.AutoCreateIndex;
+        _missingIndexBehavior = options.MissingIndexBehavior;
+        _mutateMaxRetryCount = Math.Clamp(options.MutateMaxRetryCount, 0, 20);
         _keySelector = keySelector;
         _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
         _listSortField = options.ListSortField?.Trim() ?? "";
@@ -79,27 +87,62 @@ public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationT
         ct.ThrowIfCancellationRequested();
 
         var keyValue = FormatKey(key);
+        if (keyValue.Length == 0)
+            throw new InvalidOperationException(
+                $"ReadModel '{typeof(TReadModel).FullName}' resolved an empty key for Elasticsearch mutation.");
+
         var startedAt = DateTimeOffset.UtcNow;
-        var existing = await GetAsync(key, ct);
-        if (existing == null)
+        for (var attempt = 0; attempt <= _mutateMaxRetryCount; attempt++)
         {
-            var notFound = new InvalidOperationException(
-                $"ReadModel '{typeof(TReadModel).FullName}' with key '{keyValue}' was not found.");
-            LogWriteFailure(keyValue, startedAt, notFound);
-            throw notFound;
-        }
+            var snapshot = await GetDocumentSnapshotAsync(keyValue, ct);
+            if (snapshot == null)
+            {
+                var notFound = new InvalidOperationException(
+                    $"ReadModel '{typeof(TReadModel).FullName}' with key '{keyValue}' was not found.");
+                LogWriteFailure(keyValue, startedAt, notFound);
+                throw notFound;
+            }
 
-        try
-        {
-            mutate(existing);
-        }
-        catch (Exception ex)
-        {
-            LogWriteFailure(keyValue, startedAt, ex);
-            throw;
-        }
+            try
+            {
+                mutate(snapshot.ReadModel);
+            }
+            catch (Exception ex)
+            {
+                LogWriteFailure(keyValue, startedAt, ex);
+                throw;
+            }
 
-        await UpsertCoreAsync(existing, allowCreateIndex: true, ct);
+            try
+            {
+                await UpsertCoreAsync(
+                    snapshot.ReadModel,
+                    allowCreateIndex: true,
+                    ct,
+                    ifSeqNo: snapshot.SeqNo,
+                    ifPrimaryTerm: snapshot.PrimaryTerm);
+                return;
+            }
+            catch (ElasticsearchOptimisticConcurrencyException ex) when (attempt < _mutateMaxRetryCount)
+            {
+                _logger.LogWarning(
+                    ex,
+                    "Projection read-model optimistic concurrency conflict. provider={Provider} readModelType={ReadModelType} key={Key} attempt={Attempt}/{MaxAttempts}",
+                    ProviderCapabilities.ProviderName,
+                    typeof(TReadModel).FullName,
+                    keyValue,
+                    attempt + 1,
+                    _mutateMaxRetryCount + 1);
+            }
+            catch (ElasticsearchOptimisticConcurrencyException ex)
+            {
+                var conflict = new InvalidOperationException(
+                    $"Elasticsearch optimistic concurrency update failed for read-model '{typeof(TReadModel).FullName}' with key '{keyValue}' after {_mutateMaxRetryCount + 1} attempt(s).",
+                    ex);
+                LogWriteFailure(keyValue, startedAt, conflict);
+                throw conflict;
+            }
+        }
     }
 
     public async Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
@@ -113,11 +156,16 @@ public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationT
 
         using var response = await _httpClient.GetAsync($"{_indexName}/_doc/{Uri.EscapeDataString(keyValue)}", ct);
         if (response.StatusCode == HttpStatusCode.NotFound)
+        {
+            var payload = await response.Content.ReadAsStringAsync(ct);
+            if (TryHandleMissingIndexForRead("get", payload))
+                return null;
             return null;
+        }
 
         await EnsureSuccessAsync(response, "get", ct);
-        var payload = await response.Content.ReadAsStringAsync(ct);
-        using var jsonDoc = JsonDocument.Parse(payload);
+        var successfulPayload = await response.Content.ReadAsStringAsync(ct);
+        using var jsonDoc = JsonDocument.Parse(successfulPayload);
         if (!jsonDoc.RootElement.TryGetProperty("_source", out var sourceNode))
             return null;
 
@@ -136,11 +184,16 @@ public async Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, Cancellati
         };
         using var response = await _httpClient.SendAsync(request, ct);
         if (response.StatusCode == HttpStatusCode.NotFound)
+        {
+            var payload = await response.Content.ReadAsStringAsync(ct);
+            if (TryHandleMissingIndexForRead("list", payload))
+                return [];
             return [];
+        }
 
         await EnsureSuccessAsync(response, "list", ct);
-        var payload = await response.Content.ReadAsStringAsync(ct);
-        using var jsonDoc = JsonDocument.Parse(payload);
+        var successfulPayload = await response.Content.ReadAsStringAsync(ct);
+        using var jsonDoc = JsonDocument.Parse(successfulPayload);
         if (!jsonDoc.RootElement.TryGetProperty("hits", out var hitsNode) ||
             !hitsNode.TryGetProperty("hits", out var hitItems))
             return [];
@@ -159,7 +212,48 @@ public async Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, Cancellati
         return items;
     }
 
-    private async Task UpsertCoreAsync(TReadModel readModel, bool allowCreateIndex, CancellationToken ct)
+    private async Task<ElasticsearchDocumentSnapshot?> GetDocumentSnapshotAsync(string keyValue, CancellationToken ct)
+    {
+        ct.ThrowIfCancellationRequested();
+        await EnsureIndexAsync(ct);
+
+        using var response = await _httpClient.GetAsync($"{_indexName}/_doc/{Uri.EscapeDataString(keyValue)}", ct);
+        if (response.StatusCode == HttpStatusCode.NotFound)
+        {
+            var payload = await response.Content.ReadAsStringAsync(ct);
+            if (IsIndexNotFoundPayload(payload))
+                throw BuildMissingIndexException("mutate", payload);
+            return null;
+        }
+
+        await EnsureSuccessAsync(response, "mutate-get", ct);
+        var successfulPayload = await response.Content.ReadAsStringAsync(ct);
+        using var jsonDoc = JsonDocument.Parse(successfulPayload);
+        if (!jsonDoc.RootElement.TryGetProperty("_source", out var sourceNode))
+            return null;
+
+        var readModel = DeserializeOrNull(sourceNode.GetRawText());
+        if (readModel == null)
+            return null;
+
+        if (!jsonDoc.RootElement.TryGetProperty("_seq_no", out var seqNoNode) ||
+            !seqNoNode.TryGetInt64(out var seqNo) ||
+            !jsonDoc.RootElement.TryGetProperty("_primary_term", out var primaryTermNode) ||
+            !primaryTermNode.TryGetInt64(out var primaryTerm))
+        {
+            throw new InvalidOperationException(
+                $"Elasticsearch mutate-get response missing optimistic concurrency metadata for index '{_indexName}' key '{keyValue}'.");
+        }
+
+        return new ElasticsearchDocumentSnapshot(readModel, seqNo, primaryTerm);
+    }
+
+    private async Task UpsertCoreAsync(
+        TReadModel readModel,
+        bool allowCreateIndex,
+        CancellationToken ct,
+        long? ifSeqNo = null,
+        long? ifPrimaryTerm = null)
     {
         ArgumentNullException.ThrowIfNull(readModel);
         ct.ThrowIfCancellationRequested();
@@ -171,11 +265,19 @@ private async Task UpsertCoreAsync(TReadModel readModel, bool allowCreateIndex,
         var startedAt = DateTimeOffset.UtcNow;
         try
         {
-            using var request = new HttpRequestMessage(HttpMethod.Put, $"{_indexName}/_doc/{Uri.EscapeDataString(keyValue)}")
+            var requestPath = BuildDocumentRequestPath(keyValue, ifSeqNo, ifPrimaryTerm);
+            using var request = new HttpRequestMessage(HttpMethod.Put, requestPath)
             {
                 Content = new StringContent(payload, Encoding.UTF8, "application/json"),
             };
             using var response = await _httpClient.SendAsync(request, ct);
+            if (response.StatusCode == HttpStatusCode.Conflict)
+            {
+                var conflictPayload = await response.Content.ReadAsStringAsync(ct);
+                throw new ElasticsearchOptimisticConcurrencyException(
+                    $"Elasticsearch optimistic concurrency conflict for index '{_indexName}' key '{keyValue}'. body={TruncatePayload(conflictPayload)}");
+            }
+
             await EnsureSuccessAsync(response, "upsert", ct);
 
             var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
@@ -189,11 +291,55 @@ private async Task UpsertCoreAsync(TReadModel readModel, bool allowCreateIndex,
         }
         catch (Exception ex)
         {
-            LogWriteFailure(keyValue, startedAt, ex);
+            if (ex is not ElasticsearchOptimisticConcurrencyException)
+                LogWriteFailure(keyValue, startedAt, ex);
             throw;
         }
     }
 
+    private string BuildDocumentRequestPath(string keyValue, long? ifSeqNo, long? ifPrimaryTerm)
+    {
+        var requestPath = $"{_indexName}/_doc/{Uri.EscapeDataString(keyValue)}";
+        if (!ifSeqNo.HasValue && !ifPrimaryTerm.HasValue)
+            return requestPath;
+
+        if (!ifSeqNo.HasValue || !ifPrimaryTerm.HasValue)
+            throw new InvalidOperationException("Elasticsearch optimistic concurrency update requires both seq_no and primary_term.");
+
+        return requestPath + $"?if_seq_no={ifSeqNo.Value}&if_primary_term={ifPrimaryTerm.Value}";
+    }
+
+    private bool TryHandleMissingIndexForRead(string operation, string payload)
+    {
+        if (!IsIndexNotFoundPayload(payload))
+            return false;
+
+        if (_autoCreateIndex || _missingIndexBehavior == ElasticsearchMissingIndexBehavior.Throw)
+            throw BuildMissingIndexException(operation, payload);
+
+        _logger.LogWarning(
+            "Projection read-model index is missing. provider={Provider} readModelType={ReadModelType} index={Index} operation={Operation} behavior={Behavior}",
+            ProviderCapabilities.ProviderName,
+            typeof(TReadModel).FullName,
+            _indexName,
+            operation,
+            _missingIndexBehavior);
+        return true;
+    }
+
+    private InvalidOperationException BuildMissingIndexException(string operation, string payload)
+    {
+        return new InvalidOperationException(
+            $"Elasticsearch index '{_indexName}' was not found during '{operation}' for read-model '{typeof(TReadModel).FullName}'. " +
+            $"Configure index bootstrap or set '{nameof(ElasticsearchProjectionReadModelStoreOptions.AutoCreateIndex)}=true'. " +
+            $"body={TruncatePayload(payload)}");
+    }
+
+    private static bool IsIndexNotFoundPayload(string payload)
+    {
+        return payload.Contains("index_not_found_exception", StringComparison.OrdinalIgnoreCase);
+    }
+
     private void LogWriteFailure(
         string keyValue,
         DateTimeOffset startedAt,
@@ -240,24 +386,63 @@ private string FormatKey(TKey key)
 
     private string BuildListPayloadJson(int size)
     {
-        if (_listSortField.Length == 0)
-            return JsonSerializer.Serialize(new { size, query = new { match_all = new { } } });
+        var sort = _listSortField.Length == 0
+            ? BuildDefaultSortSpec()
+            : BuildConfiguredSortSpec(_listSortField);
 
         return JsonSerializer.Serialize(new
         {
             size,
-            sort = new object[]
+            sort,
+            query = new
+            {
+                match_all = new { },
+            },
+        });
+    }
+
+    private static object[] BuildConfiguredSortSpec(string sortField)
+    {
+        return
+        [
+            new Dictionary<string, object>
             {
-                new Dictionary<string, object>
+                [sortField] = new Dictionary<string, object>
                 {
-                    [_listSortField] = new { order = "desc" },
+                    ["order"] = "desc",
                 },
             },
-            query = new
+            new Dictionary<string, object>
             {
-                match_all = new { },
+                [DefaultListTiebreakSortField] = new Dictionary<string, object>
+                {
+                    ["order"] = "desc",
+                },
             },
-        });
+        ];
+    }
+
+    private static object[] BuildDefaultSortSpec()
+    {
+        return
+        [
+            new Dictionary<string, object>
+            {
+                [DefaultListPrimarySortField] = new Dictionary<string, object>
+                {
+                    ["order"] = "desc",
+                    ["missing"] = "_last",
+                    ["unmapped_type"] = "date",
+                },
+            },
+            new Dictionary<string, object>
+            {
+                [DefaultListTiebreakSortField] = new Dictionary<string, object>
+                {
+                    ["order"] = "desc",
+                },
+            },
+        ];
     }
 
     private async Task EnsureIndexAsync(CancellationToken ct)
@@ -350,17 +535,36 @@ private static string NormalizeToken(string token)
         return new string(chars).Trim('-');
     }
 
+    private static string TruncatePayload(string payload)
+    {
+        const int maxLength = 512;
+        if (payload.Length <= maxLength)
+            return payload;
+
+        return payload[..maxLength] + "...(truncated)";
+    }
+
     private static ProjectionReadModelProviderCapabilities BuildCapabilities(string providerName) =>
         new(
             providerName,
             supportsIndexing: true,
             indexKinds: [ProjectionReadModelIndexKind.Document],
-            supportsAliases: true,
-            supportsSchemaValidation: true);
+            supportsAliases: false,
+            supportsSchemaValidation: false);
 
     public void Dispose()
     {
         _httpClient.Dispose();
         _indexInitializationLock.Dispose();
     }
+
+    private sealed record ElasticsearchDocumentSnapshot(TReadModel ReadModel, long SeqNo, long PrimaryTerm);
+
+    private sealed class ElasticsearchOptimisticConcurrencyException : InvalidOperationException
+    {
+        public ElasticsearchOptimisticConcurrencyException(string message)
+            : base(message)
+        {
+        }
+    }
 }
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
index 7da58fb70..6691d47f5 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
@@ -11,8 +11,8 @@ public ElasticsearchProjectionRelationStore(
             providerName,
             supportsIndexing: true,
             indexKinds: [ProjectionReadModelIndexKind.Document],
-            supportsAliases: true,
-            supportsSchemaValidation: true,
+            supportsAliases: false,
+            supportsSchemaValidation: false,
             supportsRelations: false,
             supportsRelationTraversal: false);
     }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
index 0fdb4cfc6..229b6bd24 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
@@ -42,12 +42,6 @@ private static bool TryGetBinding(
             return false;
         }
 
-        if (readModelBindings.TryGetValue(readModelType.Name, out bindingValue!))
-        {
-            bindingKey = readModelType.Name;
-            return true;
-        }
-
         var fullName = readModelType.FullName ?? "";
         if (fullName.Length > 0 && readModelBindings.TryGetValue(fullName, out bindingValue!))
         {
@@ -55,6 +49,15 @@ private static bool TryGetBinding(
             return true;
         }
 
+        if (readModelBindings.TryGetValue(readModelType.Name, out bindingValue!))
+        {
+            throw new ProjectionReadModelBindingException(
+                readModelType,
+                readModelType.Name,
+                bindingValue,
+                $"Binding key must use full type name '{fullName}'.");
+        }
+
         bindingKey = "";
         bindingValue = "";
         return false;
diff --git a/src/Aevatar.Foundation.Projection/README.md b/src/Aevatar.Foundation.Projection/README.md
index cf0b811c7..aefe415d0 100644
--- a/src/Aevatar.Foundation.Projection/README.md
+++ b/src/Aevatar.Foundation.Projection/README.md
@@ -4,7 +4,7 @@
 
 ## 职责
 
-- 定义读模型基础字段：`AevatarReadModelBase`
+- 定义读模型基础字段：`AevatarReadModelBase`（`RootActorId/CommandId/StateVersion/LastEventId/CreatedAt/UpdatedAt`）
 - 定义通用读侧能力接口：
   - `IHasProjectionTimeline`
   - `IHasProjectionRoleReplies`
diff --git a/src/Aevatar.Foundation.Projection/ReadModels/AevatarReadModelBase.cs b/src/Aevatar.Foundation.Projection/ReadModels/AevatarReadModelBase.cs
index 1fcdab20a..0fa183133 100644
--- a/src/Aevatar.Foundation.Projection/ReadModels/AevatarReadModelBase.cs
+++ b/src/Aevatar.Foundation.Projection/ReadModels/AevatarReadModelBase.cs
@@ -9,6 +9,6 @@ public abstract class AevatarReadModelBase
     public string CommandId { get; set; } = string.Empty;
     public long StateVersion { get; set; }
     public string LastEventId { get; set; } = string.Empty;
-    public DateTimeOffset StartedAt { get; set; }
-    public DateTimeOffset EndedAt { get; set; }
+    public DateTimeOffset CreatedAt { get; set; } = DateTimeOffset.UtcNow;
+    public DateTimeOffset UpdatedAt { get; set; } = DateTimeOffset.UtcNow;
 }
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
index 4e9591f55..8c8015720 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
@@ -107,6 +107,8 @@ public sealed class WorkflowRunReport
     public string CommandId { get; set; } = string.Empty;
     public long StateVersion { get; set; }
     public string LastEventId { get; set; } = string.Empty;
+    public DateTimeOffset CreatedAt { get; set; }
+    public DateTimeOffset UpdatedAt { get; set; }
     public DateTimeOffset StartedAt { get; set; }
     public DateTimeOffset EndedAt { get; set; }
     public double DurationMs { get; set; }
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
index 55fd2a1fb..d2c202aff 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
@@ -42,18 +42,31 @@ private static void ApplyGlobalReadModelOptions(
         IConfiguration configuration,
         WorkflowExecutionProjectionOptions options)
     {
+        var readModelSection = configuration.GetSection("Projection:ReadModel");
+        if (!readModelSection.Exists())
+            return;
+
         var readModelOptions = new ProjectionReadModelRuntimeOptions();
-        configuration.GetSection("Projection:ReadModel").Bind(readModelOptions);
+        readModelSection.Bind(readModelOptions);
+
+        var configuredProvider = readModelSection["Provider"];
+        if (!string.IsNullOrWhiteSpace(configuredProvider))
+            options.ReadModelProvider = configuredProvider.Trim();
+        var configuredRelationProvider = readModelSection["RelationProvider"];
+        if (!string.IsNullOrWhiteSpace(configuredRelationProvider))
+            options.RelationProvider = configuredRelationProvider.Trim();
 
-        if (!string.IsNullOrWhiteSpace(readModelOptions.Provider))
-            options.ReadModelProvider = readModelOptions.Provider.Trim();
-        if (!string.IsNullOrWhiteSpace(readModelOptions.RelationProvider))
-            options.RelationProvider = readModelOptions.RelationProvider.Trim();
+        if (!string.IsNullOrWhiteSpace(readModelSection["Mode"]))
+            options.ReadModelMode = readModelOptions.Mode;
+        if (!string.IsNullOrWhiteSpace(readModelSection["FailOnUnsupportedCapabilities"]))
+            options.FailOnUnsupportedCapabilities = readModelOptions.FailOnUnsupportedCapabilities;
 
-        options.ReadModelMode = readModelOptions.Mode;
-        options.FailOnUnsupportedCapabilities = readModelOptions.FailOnUnsupportedCapabilities;
-        options.ReadModelBindings.Clear();
-        foreach (var item in readModelOptions.Bindings)
-            options.ReadModelBindings[item.Key] = item.Value;
+        var bindingsSection = readModelSection.GetSection("Bindings");
+        if (bindingsSection.Exists())
+        {
+            options.ReadModelBindings.Clear();
+            foreach (var item in readModelOptions.Bindings)
+                options.ReadModelBindings[item.Key] = item.Value;
+        }
     }
 }
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/Reporting/WorkflowExecutionReportWriter.cs b/src/workflow/Aevatar.Workflow.Infrastructure/Reporting/WorkflowExecutionReportWriter.cs
index c11e6095c..853136171 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/Reporting/WorkflowExecutionReportWriter.cs
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/Reporting/WorkflowExecutionReportWriter.cs
@@ -67,6 +67,8 @@ private static string BuildHtml(WorkflowRunReport report)
         AppendRow(sb, "TopologySource", report.TopologySource.ToString());
         AppendRow(sb, "Success", report.Success?.ToString() ?? "(unknown)");
         AppendRow(sb, "DurationMs", report.DurationMs.ToString("F2"));
+        AppendRow(sb, "CreatedAt", report.CreatedAt.ToString("O"));
+        AppendRow(sb, "UpdatedAt", report.UpdatedAt.ToString("O"));
         AppendRow(sb, "StartedAt", report.StartedAt.ToString("O"));
         AppendRow(sb, "EndedAt", report.EndedAt.ToString("O"));
         sb.AppendLine("</tbody></table>");
diff --git a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
index 42c6ed708..a616ede49 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
@@ -68,7 +68,7 @@ public bool EnableRunQueryEndpoints
     public bool ValidateRelationProviderOnStartup { get; set; } = true;
 
     /// <summary>
-    /// Optional read-model binding requirements (ReadModelName -> IndexKind).
+    /// Optional read-model binding requirements (ReadModelType.FullName -> IndexKind).
     /// </summary>
     public Dictionary<string, string> ReadModelBindings { get; }
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
index 7aeb75683..8fff12c53 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
@@ -1,4 +1,5 @@
 using Aevatar.Workflow.Projection.ReadModels;
+using Aevatar.Workflow.Projection.Reducers;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
@@ -20,16 +21,19 @@ public Task RefreshMetadataAsync(
         WorkflowExecutionProjectionContext context,
         CancellationToken ct = default)
     {
+        var updatedAt = _clock.UtcNow;
         return _store.MutateAsync(actorId, report =>
         {
             report.CommandId = context.CommandId;
             report.WorkflowName = context.WorkflowName;
             report.Input = context.Input;
+            if (report.CreatedAt == default)
+                report.CreatedAt = context.StartedAt;
             report.StartedAt = context.StartedAt;
             if (report.EndedAt < report.StartedAt)
                 report.EndedAt = report.StartedAt;
 
-            report.DurationMs = Math.Max(0, (report.EndedAt - report.StartedAt).TotalMilliseconds);
+            WorkflowExecutionProjectionMutations.RefreshDerivedFields(report, updatedAt);
         }, ct);
     }
 
@@ -37,15 +41,16 @@ public Task MarkStoppedAsync(
         string actorId,
         CancellationToken ct = default)
     {
+        var updatedAt = _clock.UtcNow;
         return _store.MutateAsync(actorId, report =>
         {
             if (report.CompletionStatus == WorkflowExecutionCompletionStatus.Running)
                 report.CompletionStatus = WorkflowExecutionCompletionStatus.Stopped;
 
             if (report.EndedAt < report.StartedAt)
-                report.EndedAt = _clock.UtcNow;
+                report.EndedAt = updatedAt;
 
-            report.DurationMs = Math.Max(0, (report.EndedAt - report.StartedAt).TotalMilliseconds);
+            WorkflowExecutionProjectionMutations.RefreshDerivedFields(report, updatedAt);
         }, ct);
     }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
index b809039f8..4d6d2669e 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
@@ -21,15 +21,15 @@ public WorkflowReadModelSelectionPlan Build(WorkflowExecutionProjectionOptions o
         var readModelRequirements = _bindingResolver.Resolve(options.ReadModelBindings, typeof(WorkflowExecutionReport));
         var readModelSelectionOptions = new ProjectionReadModelStoreSelectionOptions
         {
-            RequestedProviderName = NormalizeProviderName(options.ReadModelProvider),
+            RequestedProviderName = NormalizeRequiredProviderName(options.ReadModelProvider),
             FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
         };
         var relationRequirements = BuildRelationRequirements(readModelRequirements);
         var relationSelectionOptions = new ProjectionReadModelStoreSelectionOptions
         {
-            RequestedProviderName = NormalizeProviderName(
+            RequestedProviderName = NormalizeRelationProviderName(
                 options.RelationProvider,
-                options.ReadModelProvider),
+                readModelSelectionOptions.RequestedProviderName),
             FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
         };
 
@@ -51,18 +51,25 @@ private static ProjectionReadModelRequirements BuildRelationRequirements(
             requiresSchemaValidation: readModelRequirements.RequiresSchemaValidation);
     }
 
-    private static string NormalizeProviderName(string providerName, string fallbackProviderName = "")
+    private static string NormalizeRequiredProviderName(string providerName)
     {
         if (string.IsNullOrWhiteSpace(providerName))
         {
-            if (string.IsNullOrWhiteSpace(fallbackProviderName))
-                return ProjectionReadModelProviderNames.InMemory;
-            return fallbackProviderName.Trim();
+            throw new InvalidOperationException(
+                "WorkflowExecutionProjection:ReadModelProvider is required and cannot be empty.");
         }
 
         return providerName.Trim();
     }
 
+    private static string NormalizeRelationProviderName(string relationProviderName, string fallbackProviderName)
+    {
+        if (string.IsNullOrWhiteSpace(relationProviderName))
+            return fallbackProviderName;
+
+        return relationProviderName.Trim();
+    }
+
     private static void EnsureReadModelModeSupported(ProjectionReadModelMode readModelMode)
     {
         if (readModelMode != ProjectionReadModelMode.StateOnly)
diff --git a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
index 8f2fb6845..7ce9c9000 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
@@ -40,6 +40,8 @@ public ValueTask InitializeAsync(WorkflowExecutionProjectionContext context, Can
             WorkflowName = context.WorkflowName,
             RootActorId = context.RootActorId,
             CommandId = context.CommandId,
+            CreatedAt = context.StartedAt,
+            UpdatedAt = context.StartedAt,
             StartedAt = context.StartedAt,
             EndedAt = context.StartedAt,
             Input = context.Input,
@@ -73,7 +75,7 @@ await _store.MutateAsync(context.RootActorId, report =>
                 return;
 
             WorkflowExecutionProjectionMutations.RecordProjectedEvent(report, envelope);
-            WorkflowExecutionProjectionMutations.RefreshDerivedFields(report);
+            WorkflowExecutionProjectionMutations.RefreshDerivedFields(report, now);
         }, ct);
     }
 
@@ -82,15 +84,16 @@ public ValueTask CompleteAsync(
         IReadOnlyList<WorkflowExecutionTopologyEdge> topology,
         CancellationToken ct = default)
     {
+        var completedAt = DateTimeOffset.UtcNow;
         return new ValueTask(_store.MutateAsync(context.RootActorId, report =>
         {
             report.Topology = topology.Select(x => new WorkflowExecutionTopologyEdge(x.Parent, x.Child)).ToList();
             report.TopologySource = WorkflowExecutionTopologySource.RuntimeSnapshot;
             if (report.EndedAt < report.StartedAt)
-                report.EndedAt = DateTimeOffset.UtcNow;
+                report.EndedAt = completedAt;
             if (report.CompletionStatus == WorkflowExecutionCompletionStatus.Running)
                 report.CompletionStatus = WorkflowExecutionCompletionStatus.Completed;
-            WorkflowExecutionProjectionMutations.RefreshDerivedFields(report);
+            WorkflowExecutionProjectionMutations.RefreshDerivedFields(report, completedAt);
         }, ct));
     }
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index edd3e81c0..a1226c2c9 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -92,7 +92,7 @@ FAQ：
 - `WorkflowExecutionProjection:FailOnUnsupportedCapabilities`：能力不匹配时是否 fail-fast（默认 `true`）
 - `WorkflowExecutionProjection:ValidateReadModelProviderOnStartup`：是否在 Host 启动阶段预校验 Provider 选择与能力（默认 `true`）
 - `WorkflowExecutionProjection:ValidateRelationProviderOnStartup`：是否在 Host 启动阶段预校验 Relation Provider（默认 `true`）
-- `WorkflowExecutionProjection:ReadModelBindings`：ReadModel -> IndexKind 约束（如 `WorkflowExecutionReport: Document`）
+- `WorkflowExecutionProjection:ReadModelBindings`：ReadModel -> IndexKind 约束（键必须为 `ReadModel` 的 `Type.FullName`，例如 `Aevatar.Workflow.Projection.ReadModels.WorkflowExecutionReport: Document`）
 - 推荐统一配置入口：`Projection:ReadModel:*`（由 Infrastructure 映射到 Workflow 投影选项）
 - `Projection:ReadModel:Provider`：全局默认 Provider（当前由 `WorkflowCapabilityServiceCollectionExtensions` 覆盖到模块选项）
 - `Projection:ReadModel:RelationProvider`：全局默认 Relation Provider（覆盖到模块选项）
@@ -102,7 +102,10 @@ FAQ：
 - `Projection:ReadModel:Providers:Elasticsearch:IndexPrefix`：索引前缀
 - `Projection:ReadModel:Providers:Elasticsearch:RequestTimeoutMs`：请求超时
 - `Projection:ReadModel:Providers:Elasticsearch:ListTakeMax`：`ListAsync` 上限
+- `Projection:ReadModel:Providers:Elasticsearch:ListSortField`：可选自定义排序字段；为空时默认 `CreatedAt desc -> _id desc`
 - `Projection:ReadModel:Providers:Elasticsearch:AutoCreateIndex`：是否自动建索引
+- `Projection:ReadModel:Providers:Elasticsearch:MissingIndexBehavior`：索引缺失行为（`Throw` / `WarnAndReturnEmpty`，默认 `Throw`）
+- `Projection:ReadModel:Providers:Elasticsearch:MutateMaxRetryCount`：`MutateAsync` OCC 冲突重试次数（默认 `3`）
 - `Projection:ReadModel:Providers:Elasticsearch:Username/Password`：可选基础认证
 - 扩展 run 输出协议：
   - 保持 `WorkflowRunEvent` 不变，新增 presentation adapter 进行协议映射
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
index cb073ab85..4708d9c73 100644
--- a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
@@ -37,6 +37,8 @@ public sealed class WorkflowExecutionReport
     public WorkflowExecutionTopologySource TopologySource { get; set; } = WorkflowExecutionTopologySource.RuntimeSnapshot;
     public WorkflowExecutionCompletionStatus CompletionStatus { get; set; } = WorkflowExecutionCompletionStatus.Unknown;
     public string WorkflowName { get; set; } = "";
+    public DateTimeOffset StartedAt { get; set; }
+    public DateTimeOffset EndedAt { get; set; }
     public double DurationMs { get; set; }
     public bool? Success { get; set; }
     public string Input { get; set; } = "";
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs
index 8d21181e0..3b5b30dfd 100644
--- a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs
@@ -13,7 +13,7 @@ public WorkflowActorSnapshot ToActorSnapshot(WorkflowExecutionReport source)
             LastCommandId = source.CommandId,
             StateVersion = source.StateVersion,
             LastEventId = source.LastEventId,
-            LastUpdatedAt = source.EndedAt,
+            LastUpdatedAt = source.UpdatedAt,
             LastSuccess = source.Success,
             LastOutput = source.FinalOutput,
             LastError = source.FinalError,
diff --git a/src/workflow/Aevatar.Workflow.Projection/Reducers/WorkflowExecutionProjectionMutations.cs b/src/workflow/Aevatar.Workflow.Projection/Reducers/WorkflowExecutionProjectionMutations.cs
index 8532e2ea7..853732c14 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Reducers/WorkflowExecutionProjectionMutations.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Reducers/WorkflowExecutionProjectionMutations.cs
@@ -50,9 +50,10 @@ public static void AddTimeline(
         });
     }
 
-    public static void RefreshDerivedFields(WorkflowExecutionReport report)
+    public static void RefreshDerivedFields(WorkflowExecutionReport report, DateTimeOffset updatedAt)
     {
         report.DurationMs = Math.Max(0, (report.EndedAt - report.StartedAt).TotalMilliseconds);
+        report.UpdatedAt = updatedAt;
 
         var stepTypeCounts = report.Steps
             .Where(x => !string.IsNullOrWhiteSpace(x.StepType))
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index d34135d77..2f62a1786 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -3,6 +3,7 @@
 using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
 using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
+using Aevatar.CQRS.Projection.Abstractions;
 using Aevatar.Workflow.Projection.ReadModels;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
@@ -23,46 +24,130 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
 
         services.AddSingleton<WorkflowProjectionProviderRegistrationsMarker>();
 
-        services.AddInMemoryReadModelStoreRegistration<WorkflowExecutionReport, string>(
-            keySelector: report => report.RootActorId,
-            keyFormatter: key => key,
-            listSortSelector: report => report.StartedAt,
-            listTakeMax: 200);
-        services.AddInMemoryRelationStoreRegistration();
-
-        services.AddElasticsearchReadModelStoreRegistration<WorkflowExecutionReport, string>(
-            optionsFactory: _ =>
-            {
-                var providerOptions = new ElasticsearchProjectionReadModelStoreOptions();
-                configuration.GetSection("Projection:ReadModel:Providers:Elasticsearch").Bind(providerOptions);
-                return providerOptions;
-            },
-            indexScope: "workflow-execution-reports",
-            keySelector: report => report.RootActorId,
-            keyFormatter: key => key);
-        services.AddElasticsearchRelationStoreRegistration();
-
-        services.AddNeo4jReadModelStoreRegistration<WorkflowExecutionReport, string>(
-            optionsFactory: _ =>
-            {
-                var providerOptions = new Neo4jProjectionReadModelStoreOptions();
-                configuration.GetSection("Projection:ReadModel:Providers:Neo4j").Bind(providerOptions);
-                return providerOptions;
-            },
-            scope: "workflow-execution-reports",
-            keySelector: report => report.RootActorId,
-            keyFormatter: key => key);
-        services.AddNeo4jRelationStoreRegistration(
-            optionsFactory: _ =>
-            {
-                var providerOptions = new Neo4jProjectionRelationStoreOptions();
-                configuration.GetSection("Projection:ReadModel:Providers:Neo4j").Bind(providerOptions);
-                return providerOptions;
-            },
-            scope: WorkflowExecutionRelationConstants.Scope);
+        var providerSelection = ResolveProviderSelection(configuration);
+        RegisterReadModelProvider(services, configuration, providerSelection.ReadModelProvider);
+        RegisterRelationProvider(services, configuration, providerSelection.RelationProvider);
 
         return services;
     }
 
+    private static ProviderSelection ResolveProviderSelection(IConfiguration configuration)
+    {
+        var workflowReadModelProvider = configuration["WorkflowExecutionProjection:ReadModelProvider"];
+        var workflowRelationProvider = configuration["WorkflowExecutionProjection:RelationProvider"];
+        var globalReadModelProvider = configuration["Projection:ReadModel:Provider"];
+        var globalRelationProvider = configuration["Projection:ReadModel:RelationProvider"];
+
+        var readModelProvider = NormalizeOrDefaultProvider(
+            !string.IsNullOrWhiteSpace(globalReadModelProvider)
+                ? globalReadModelProvider
+                : workflowReadModelProvider,
+            ProjectionReadModelProviderNames.InMemory,
+            "Projection:ReadModel:Provider");
+
+        var relationProvider = NormalizeOrDefaultProvider(
+            !string.IsNullOrWhiteSpace(globalRelationProvider)
+                ? globalRelationProvider
+                : workflowRelationProvider,
+            readModelProvider,
+            "Projection:ReadModel:RelationProvider");
+
+        return new ProviderSelection(readModelProvider, relationProvider);
+    }
+
+    private static string NormalizeOrDefaultProvider(
+        string? configuredValue,
+        string fallbackValue,
+        string optionPath)
+    {
+        var candidate = string.IsNullOrWhiteSpace(configuredValue)
+            ? fallbackValue
+            : configuredValue.Trim();
+
+        if (string.Equals(candidate, ProjectionReadModelProviderNames.InMemory, StringComparison.OrdinalIgnoreCase))
+            return ProjectionReadModelProviderNames.InMemory;
+        if (string.Equals(candidate, ProjectionReadModelProviderNames.Elasticsearch, StringComparison.OrdinalIgnoreCase))
+            return ProjectionReadModelProviderNames.Elasticsearch;
+        if (string.Equals(candidate, ProjectionReadModelProviderNames.Neo4j, StringComparison.OrdinalIgnoreCase))
+            return ProjectionReadModelProviderNames.Neo4j;
+
+        throw new InvalidOperationException(
+            $"Unsupported projection provider '{candidate}' configured at '{optionPath}'. " +
+            $"Allowed values: {ProjectionReadModelProviderNames.InMemory}, {ProjectionReadModelProviderNames.Elasticsearch}, {ProjectionReadModelProviderNames.Neo4j}.");
+    }
+
+    private static void RegisterReadModelProvider(
+        IServiceCollection services,
+        IConfiguration configuration,
+        string providerName)
+    {
+        switch (providerName)
+        {
+            case ProjectionReadModelProviderNames.InMemory:
+                services.AddInMemoryReadModelStoreRegistration<WorkflowExecutionReport, string>(
+                    keySelector: report => report.RootActorId,
+                    keyFormatter: key => key,
+                    listSortSelector: report => report.CreatedAt,
+                    listTakeMax: 200);
+                break;
+            case ProjectionReadModelProviderNames.Elasticsearch:
+                services.AddElasticsearchReadModelStoreRegistration<WorkflowExecutionReport, string>(
+                    optionsFactory: _ =>
+                    {
+                        var providerOptions = new ElasticsearchProjectionReadModelStoreOptions();
+                        configuration.GetSection("Projection:ReadModel:Providers:Elasticsearch").Bind(providerOptions);
+                        return providerOptions;
+                    },
+                    indexScope: "workflow-execution-reports",
+                    keySelector: report => report.RootActorId,
+                    keyFormatter: key => key);
+                break;
+            case ProjectionReadModelProviderNames.Neo4j:
+                services.AddNeo4jReadModelStoreRegistration<WorkflowExecutionReport, string>(
+                    optionsFactory: _ =>
+                    {
+                        var providerOptions = new Neo4jProjectionReadModelStoreOptions();
+                        configuration.GetSection("Projection:ReadModel:Providers:Neo4j").Bind(providerOptions);
+                        return providerOptions;
+                    },
+                    scope: "workflow-execution-reports",
+                    keySelector: report => report.RootActorId,
+                    keyFormatter: key => key);
+                break;
+            default:
+                throw new InvalidOperationException($"Unsupported read-model provider '{providerName}'.");
+        }
+    }
+
+    private static void RegisterRelationProvider(
+        IServiceCollection services,
+        IConfiguration configuration,
+        string providerName)
+    {
+        switch (providerName)
+        {
+            case ProjectionReadModelProviderNames.InMemory:
+                services.AddInMemoryRelationStoreRegistration();
+                break;
+            case ProjectionReadModelProviderNames.Elasticsearch:
+                services.AddElasticsearchRelationStoreRegistration();
+                break;
+            case ProjectionReadModelProviderNames.Neo4j:
+                services.AddNeo4jRelationStoreRegistration(
+                    optionsFactory: _ =>
+                    {
+                        var providerOptions = new Neo4jProjectionRelationStoreOptions();
+                        configuration.GetSection("Projection:ReadModel:Providers:Neo4j").Bind(providerOptions);
+                        return providerOptions;
+                    },
+                    scope: WorkflowExecutionRelationConstants.Scope);
+                break;
+            default:
+                throw new InvalidOperationException($"Unsupported relation provider '{providerName}'.");
+        }
+    }
+
     private sealed class WorkflowProjectionProviderRegistrationsMarker;
+
+    private sealed record ProviderSelection(string ReadModelProvider, string RelationProvider);
 }
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
new file mode 100644
index 000000000..2c0a5de43
--- /dev/null
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
@@ -0,0 +1,191 @@
+using System.Net;
+using System.Text;
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
+using Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+using FluentAssertions;
+
+namespace Aevatar.CQRS.Projection.Core.Tests;
+
+public sealed class ElasticsearchProjectionReadModelStoreBehaviorTests
+{
+    [Fact]
+    public void ProviderCapabilities_ShouldNotClaimAliasOrSchemaValidationSupport()
+    {
+        using var store = CreateStore(
+            new ElasticsearchProjectionReadModelStoreOptions
+            {
+                AutoCreateIndex = false,
+            },
+            new ScriptedHttpMessageHandler());
+
+        var capabilities = store.ProviderCapabilities;
+        capabilities.SupportsAliases.Should().BeFalse();
+        capabilities.SupportsSchemaValidation.Should().BeFalse();
+    }
+
+    [Fact]
+    public async Task GetAsync_WhenIndexMissingAndAutoCreateDisabled_ShouldThrowByDefault()
+    {
+        var handler = new ScriptedHttpMessageHandler();
+        handler.EnqueueResponse(_ => CreateJsonResponse(
+            HttpStatusCode.NotFound,
+            """{"error":{"type":"index_not_found_exception"},"status":404}"""));
+
+        using var store = CreateStore(
+            new ElasticsearchProjectionReadModelStoreOptions
+            {
+                AutoCreateIndex = false,
+            },
+            handler);
+
+        Func<Task> act = () => store.GetAsync("actor-1");
+
+        await act.Should().ThrowAsync<InvalidOperationException>()
+            .WithMessage("*index*not found*");
+    }
+
+    [Fact]
+    public async Task GetAsync_WhenIndexMissingAndWarnBehaviorEnabled_ShouldReturnNull()
+    {
+        var handler = new ScriptedHttpMessageHandler();
+        handler.EnqueueResponse(_ => CreateJsonResponse(
+            HttpStatusCode.NotFound,
+            """{"error":{"type":"index_not_found_exception"},"status":404}"""));
+
+        using var store = CreateStore(
+            new ElasticsearchProjectionReadModelStoreOptions
+            {
+                AutoCreateIndex = false,
+                MissingIndexBehavior = ElasticsearchMissingIndexBehavior.WarnAndReturnEmpty,
+            },
+            handler);
+
+        var result = await store.GetAsync("actor-1");
+
+        result.Should().BeNull();
+    }
+
+    [Fact]
+    public async Task ListAsync_WhenSortFieldNotConfigured_ShouldUseDeterministicDefaultSort()
+    {
+        var handler = new ScriptedHttpMessageHandler();
+        handler.EnqueueResponse(_ => CreateJsonResponse(
+            HttpStatusCode.OK,
+            """{"hits":{"hits":[]}}"""));
+
+        using var store = CreateStore(
+            new ElasticsearchProjectionReadModelStoreOptions
+            {
+                AutoCreateIndex = false,
+                ListSortField = "",
+            },
+            handler);
+
+        _ = await store.ListAsync();
+
+        var searchRequest = handler.CapturedRequests.Should().ContainSingle().Subject;
+        searchRequest.PathAndQuery.Should().EndWith("/_search");
+        searchRequest.Body.Should().Contain("\"sort\"");
+        searchRequest.Body.Should().Contain("\"CreatedAt\"");
+        searchRequest.Body.Should().Contain("\"_id\"");
+    }
+
+    [Fact]
+    public async Task MutateAsync_WhenOptimisticConflictOccurs_ShouldRetryWithLatestSeqNoAndPrimaryTerm()
+    {
+        var handler = new ScriptedHttpMessageHandler();
+        handler.EnqueueResponse(_ => CreateJsonResponse(
+            HttpStatusCode.OK,
+            """{"_seq_no":7,"_primary_term":1,"found":true,"_source":{"Id":"actor-1","Value":"v1"}}"""));
+        handler.EnqueueResponse(_ => CreateJsonResponse(
+            HttpStatusCode.Conflict,
+            """{"error":{"type":"version_conflict_engine_exception"},"status":409}"""));
+        handler.EnqueueResponse(_ => CreateJsonResponse(
+            HttpStatusCode.OK,
+            """{"_seq_no":8,"_primary_term":1,"found":true,"_source":{"Id":"actor-1","Value":"v1"}}"""));
+        handler.EnqueueResponse(_ => CreateJsonResponse(
+            HttpStatusCode.OK,
+            """{"result":"updated"}"""));
+
+        using var store = CreateStore(
+            new ElasticsearchProjectionReadModelStoreOptions
+            {
+                AutoCreateIndex = false,
+                MutateMaxRetryCount = 1,
+            },
+            handler);
+
+        await store.MutateAsync("actor-1", model => model.Value = "v2");
+
+        handler.CapturedRequests.Should().HaveCount(4);
+        handler.CapturedRequests[1].PathAndQuery.Should().Contain("if_seq_no=7");
+        handler.CapturedRequests[1].PathAndQuery.Should().Contain("if_primary_term=1");
+        handler.CapturedRequests[3].PathAndQuery.Should().Contain("if_seq_no=8");
+        handler.CapturedRequests[3].PathAndQuery.Should().Contain("if_primary_term=1");
+        handler.CapturedRequests[3].Body.Should().Contain("\"Value\":\"v2\"");
+    }
+
+    private static ElasticsearchProjectionReadModelStore<StoreReadModel, string> CreateStore(
+        ElasticsearchProjectionReadModelStoreOptions options,
+        HttpMessageHandler handler)
+    {
+        options.Endpoints = ["http://localhost:9200"];
+        return new ElasticsearchProjectionReadModelStore<StoreReadModel, string>(
+            options,
+            "workflow-execution-reports",
+            keySelector: model => model.Id,
+            keyFormatter: key => key,
+            httpMessageHandler: handler);
+    }
+
+    private static HttpResponseMessage CreateJsonResponse(HttpStatusCode statusCode, string json)
+    {
+        return new HttpResponseMessage(statusCode)
+        {
+            Content = new StringContent(json, Encoding.UTF8, "application/json"),
+        };
+    }
+
+    private sealed class ScriptedHttpMessageHandler : HttpMessageHandler
+    {
+        private readonly Queue<Func<HttpRequestMessage, HttpResponseMessage>> _responses = new();
+
+        public List<CapturedRequest> CapturedRequests { get; } = [];
+
+        public void EnqueueResponse(Func<HttpRequestMessage, HttpResponseMessage> responseFactory)
+        {
+            _responses.Enqueue(responseFactory);
+        }
+
+        protected override async Task<HttpResponseMessage> SendAsync(
+            HttpRequestMessage request,
+            CancellationToken cancellationToken)
+        {
+            var requestBody = request.Content == null
+                ? ""
+                : await request.Content.ReadAsStringAsync(cancellationToken);
+
+            CapturedRequests.Add(new CapturedRequest(
+                request.Method.Method,
+                request.RequestUri?.PathAndQuery ?? "",
+                requestBody));
+
+            if (_responses.Count == 0)
+            {
+                throw new InvalidOperationException(
+                    $"No scripted response available for request '{request.Method} {request.RequestUri}'.");
+            }
+
+            return _responses.Dequeue().Invoke(request);
+        }
+    }
+
+    private sealed record CapturedRequest(string Method, string PathAndQuery, string Body);
+
+    private sealed class StoreReadModel
+    {
+        public string Id { get; set; } = "";
+
+        public string Value { get; set; } = "";
+    }
+}
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
index c0adf5814..05ec9dc41 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
@@ -6,12 +6,13 @@ namespace Aevatar.CQRS.Projection.Core.Tests;
 public class ProjectionReadModelRuntimeTests
 {
     [Fact]
-    public void BindingResolver_ShouldResolveRequirement_ByReadModelName()
+    public void BindingResolver_ShouldResolveRequirement_ByReadModelFullName()
     {
         var resolver = new ProjectionReadModelBindingResolver();
+        var bindingKey = typeof(TestReadModel).FullName!;
         var bindings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
         {
-            [nameof(TestReadModel)] = ProjectionReadModelIndexKind.Graph.ToString(),
+            [bindingKey] = ProjectionReadModelIndexKind.Graph.ToString(),
         };
 
         var requirements = resolver.Resolve(bindings, typeof(TestReadModel));
@@ -21,6 +22,21 @@ public void BindingResolver_ShouldResolveRequirement_ByReadModelName()
             .Which.Should().Be(ProjectionReadModelIndexKind.Graph);
     }
 
+    [Fact]
+    public void BindingResolver_WhenBindingUsesShortTypeName_ShouldThrow()
+    {
+        var resolver = new ProjectionReadModelBindingResolver();
+        var bindings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
+        {
+            [nameof(TestReadModel)] = ProjectionReadModelIndexKind.Document.ToString(),
+        };
+
+        Action act = () => resolver.Resolve(bindings, typeof(TestReadModel));
+
+        act.Should().Throw<ProjectionReadModelBindingException>()
+            .WithMessage("*must use full type name*");
+    }
+
     [Fact]
     public void ProviderSelector_WhenFailFastDisabled_ShouldReturnRegistration()
     {
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
index a06697ba4..f3f1934d0 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
@@ -80,6 +80,32 @@ public void Select_WhenCapabilitiesUnsupportedAndFailFastEnabled_ShouldThrow()
         act.Should().Throw<ProjectionReadModelCapabilityValidationException>();
     }
 
+    [Fact]
+    public void Select_WhenRequiredIndexKindsAreNotFullySupported_ShouldThrow()
+    {
+        var registrations = new[]
+        {
+            CreateRegistration(
+                "neo4j",
+                supportsIndexing: true,
+                indexKinds: [ProjectionReadModelIndexKind.Graph]),
+        };
+
+        Action act = () => ProjectionReadModelStoreSelector.Select(
+            registrations,
+            new ProjectionReadModelStoreSelectionOptions
+            {
+                RequestedProviderName = "neo4j",
+                FailOnUnsupportedCapabilities = true,
+            },
+            new ProjectionReadModelRequirements(
+                requiresIndexing: true,
+                requiredIndexKinds: [ProjectionReadModelIndexKind.Document, ProjectionReadModelIndexKind.Graph]));
+
+        act.Should().Throw<ProjectionReadModelCapabilityValidationException>()
+            .WithMessage("*not fully supported*");
+    }
+
     [Fact]
     public void Select_WhenCapabilitiesUnsupportedAndFailFastDisabled_ShouldReturnProvider()
     {
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 807621b32..c2f607d02 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -45,7 +45,7 @@ public async Task AddWorkflowExecutionProjectionCQRS_WhenStartupValidationFindsU
         services.AddWorkflowExecutionProjectionCQRS(options =>
         {
             options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory;
-            options.ReadModelBindings[nameof(WorkflowExecutionReport)] = ProjectionReadModelIndexKind.Document.ToString();
+            options.ReadModelBindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
             options.FailOnUnsupportedCapabilities = true;
         });
 
@@ -170,7 +170,7 @@ public void AddWorkflowExecutionProjectionCQRS_WhenBindingRequiresUnsupportedCap
         services.AddWorkflowExecutionProjectionCQRS(options =>
         {
             options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory;
-            options.ReadModelBindings[nameof(WorkflowExecutionReport)] = ProjectionReadModelIndexKind.Document.ToString();
+            options.ReadModelBindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
             options.FailOnUnsupportedCapabilities = true;
         });
         using var provider = services.BuildServiceProvider();
@@ -189,7 +189,7 @@ public void AddWorkflowExecutionProjectionCQRS_WhenFailFastDisabled_ShouldAllowU
         services.AddWorkflowExecutionProjectionCQRS(options =>
         {
             options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory;
-            options.ReadModelBindings[nameof(WorkflowExecutionReport)] = ProjectionReadModelIndexKind.Document.ToString();
+            options.ReadModelBindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
             options.FailOnUnsupportedCapabilities = false;
         });
         using var provider = services.BuildServiceProvider();
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
index 25972be12..9cf739971 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
@@ -197,6 +197,8 @@ public async Task AttachLiveSinkAsync_ShouldNotOverwriteRunMetadata()
         beforeAttach!.CommandId.Should().Be("cmd-1");
         beforeAttach.WorkflowName.Should().Be("wf");
         beforeAttach.Input.Should().Be("original-input");
+        beforeAttach.CreatedAt.Should().Be(initialStartedAt);
+        beforeAttach.UpdatedAt.Should().Be(initialStartedAt);
         beforeAttach.StartedAt.Should().Be(initialStartedAt);
 
         clock.UtcNow = initialStartedAt.AddMinutes(10);
@@ -208,6 +210,8 @@ public async Task AttachLiveSinkAsync_ShouldNotOverwriteRunMetadata()
         afterAttach!.CommandId.Should().Be("cmd-1");
         afterAttach.WorkflowName.Should().Be("wf");
         afterAttach.Input.Should().Be("original-input");
+        afterAttach.CreatedAt.Should().Be(initialStartedAt);
+        afterAttach.UpdatedAt.Should().Be(initialStartedAt);
         afterAttach.StartedAt.Should().Be(initialStartedAt);
         await service.DetachLiveSinkAsync(lease!, sink);
         await sink.DisposeAsync();
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
index f6858d54d..a3f05b978 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
@@ -108,6 +108,8 @@ await coordinator.ProjectAsync(context, Wrap(new WorkflowCompletedEvent
         var report = await store.GetAsync("root");
         report.Should().NotBeNull();
         report!.WorkflowName.Should().Be("direct");
+        report.CreatedAt.Should().Be(context.StartedAt);
+        report.UpdatedAt.Should().BeOnOrAfter(report.CreatedAt);
         report.Success.Should().BeTrue();
         report.FinalOutput.Should().Be("final answer");
         report.Summary.TotalSteps.Should().Be(1);
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index 9784e8d86..3ac2f9280 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -68,12 +68,12 @@ public void AddWorkflowCapabilityWithAIDefaults_ShouldRegisterReadModelProviders
         var providerRegistrations = builder.Services
             .Where(x => x.ServiceType == typeof(IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>))
             .ToList();
-        providerRegistrations.Should().HaveCount(3);
+        providerRegistrations.Should().HaveCount(1);
 
         var relationRegistrations = builder.Services
             .Where(x => x.ServiceType == typeof(IProjectionRelationStoreRegistration))
             .ToList();
-        relationRegistrations.Should().HaveCount(3);
+        relationRegistrations.Should().HaveCount(1);
     }
 
     [Fact]
@@ -88,11 +88,54 @@ public void AddWorkflowProjectionReadModelProviders_MultipleCalls_ShouldBeIdempo
         var providerRegistrations = services
             .Where(x => x.ServiceType == typeof(IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>))
             .ToList();
-        providerRegistrations.Should().HaveCount(3);
+        providerRegistrations.Should().HaveCount(1);
 
         var relationRegistrations = services
             .Where(x => x.ServiceType == typeof(IProjectionRelationStoreRegistration))
             .ToList();
-        relationRegistrations.Should().HaveCount(3);
+        relationRegistrations.Should().HaveCount(1);
+    }
+
+    [Fact]
+    public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_ShouldRegisterConfiguredCombinationOnly()
+    {
+        var services = new ServiceCollection();
+        var configuration = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string, string?>
+            {
+                ["Projection:ReadModel:Provider"] = ProjectionReadModelProviderNames.Elasticsearch,
+                ["Projection:ReadModel:RelationProvider"] = ProjectionReadModelProviderNames.InMemory,
+                ["Projection:ReadModel:Providers:Elasticsearch:Endpoints:0"] = "http://localhost:9200",
+            })
+            .Build();
+
+        services.AddWorkflowProjectionReadModelProviders(configuration);
+
+        var providerRegistrations = services
+            .Where(x => x.ServiceType == typeof(IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>))
+            .ToList();
+        var relationRegistrations = services
+            .Where(x => x.ServiceType == typeof(IProjectionRelationStoreRegistration))
+            .ToList();
+
+        providerRegistrations.Should().HaveCount(1);
+        relationRegistrations.Should().HaveCount(1);
+    }
+
+    [Fact]
+    public void AddWorkflowProjectionReadModelProviders_WhenProviderConfiguredUnknown_ShouldThrow()
+    {
+        var services = new ServiceCollection();
+        var configuration = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string, string?>
+            {
+                ["Projection:ReadModel:Provider"] = "UnknownProvider",
+            })
+            .Build();
+
+        Action act = () => services.AddWorkflowProjectionReadModelProviders(configuration);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Unsupported projection provider*");
     }
 }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs
index fc40d3f8c..c3b3445f8 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs
@@ -12,25 +12,17 @@ public sealed class WorkflowReadModelSelectionPlannerTests
     private readonly WorkflowReadModelSelectionPlanner _planner = new(new ProjectionReadModelBindingResolver());
 
     [Fact]
-    public void Build_WhenProviderIsEmpty_ShouldFallbackToInMemoryAndResolveBindings()
+    public void Build_WhenProviderIsEmpty_ShouldThrow()
     {
         var options = new WorkflowExecutionProjectionOptions
         {
             ReadModelProvider = "  ",
-            FailOnUnsupportedCapabilities = false,
         };
-        options.ReadModelBindings[nameof(WorkflowExecutionReport)] = ProjectionReadModelIndexKind.Document.ToString();
 
-        var plan = _planner.Build(options);
+        Action act = () => _planner.Build(options);
 
-        plan.ReadModelSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
-        plan.ReadModelSelectionOptions.FailOnUnsupportedCapabilities.Should().BeFalse();
-        plan.ReadModelRequirements.RequiresIndexing.Should().BeTrue();
-        plan.ReadModelRequirements.RequiredIndexKinds.Should().ContainSingle()
-            .Which.Should().Be(ProjectionReadModelIndexKind.Document);
-        plan.RelationSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
-        plan.RelationRequirements.RequiresRelations.Should().BeTrue();
-        plan.RelationRequirements.RequiresRelationTraversal.Should().BeTrue();
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*ReadModelProvider is required*");
     }
 
     [Fact]
@@ -47,6 +39,39 @@ public void Build_ShouldTrimConfiguredProviderName()
         plan.RelationSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Neo4j);
     }
 
+    [Fact]
+    public void Build_ShouldResolveBindingsByReadModelFullName()
+    {
+        var options = new WorkflowExecutionProjectionOptions
+        {
+            ReadModelProvider = ProjectionReadModelProviderNames.InMemory,
+        };
+        options.ReadModelBindings[typeof(WorkflowExecutionReport).FullName!] =
+            ProjectionReadModelIndexKind.Document.ToString();
+
+        var plan = _planner.Build(options);
+
+        plan.ReadModelRequirements.RequiresIndexing.Should().BeTrue();
+        plan.ReadModelRequirements.RequiredIndexKinds.Should().ContainSingle()
+            .Which.Should().Be(ProjectionReadModelIndexKind.Document);
+    }
+
+    [Fact]
+    public void Build_WhenBindingUsesShortTypeName_ShouldThrow()
+    {
+        var options = new WorkflowExecutionProjectionOptions
+        {
+            ReadModelProvider = ProjectionReadModelProviderNames.InMemory,
+        };
+        options.ReadModelBindings[nameof(WorkflowExecutionReport)] =
+            ProjectionReadModelIndexKind.Document.ToString();
+
+        Action act = () => _planner.Build(options);
+
+        act.Should().Throw<ProjectionReadModelBindingException>()
+            .WithMessage("*must use full type name*");
+    }
+
     [Fact]
     public void Build_WhenRelationProviderConfigured_ShouldUseRelationProvider()
     {

From 148046d280870d300fb340edb60f69b577ea93c9 Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Tue, 24 Feb 2026 21:40:17 +0800
Subject: [PATCH 23/46] Refactor Projection Architecture and Introduce Store
 Selection Mechanism

- Enhanced the projection architecture by introducing `IProjectionStoreSelectionPlanner` and `IProjectionStoreSelectionRuntimeOptions` for improved provider selection and runtime options management.
- Removed the legacy `WorkflowReadModelSelectionPlanner` to streamline the selection process and reduce complexity.
- Updated the `WorkflowExecutionProjectionOptions` to eliminate direct provider configurations, centralizing them under the new projection runtime options.
- Enhanced the `WorkflowExecutionQueryApplicationService` to support new query options for actor relations, allowing for more flexible querying capabilities.
- Improved documentation to reflect architectural changes and provide clearer guidance on the new selection mechanisms and query options.
---
 ...review-remediation-blueprint-2026-02-24.md |   7 +-
 ...apability-refactor-blueprint-2026-02-24.md | 381 ++++++++++++++++++
 .../IProjectionStoreSelectionPlanner.cs       |   9 +
 ...IProjectionStoreSelectionRuntimeOptions.cs |  14 +
 .../ProjectionReadModelRuntimeOptions.cs      |  12 +-
 .../ProjectionStoreSelectionPlan.cs           |   7 +
 .../ServiceCollectionExtensions.cs            |   1 +
 .../ProjectionStoreSelectionPlanner.cs        |  89 ++++
 .../ReadModels/AevatarReadModelBase.cs        |  10 +-
 .../ReadModels/ProjectionReadModelBase.cs     |  15 +
 .../IWorkflowExecutionProjectionQueryPort.cs  |   2 +
 ...orkflowExecutionQueryApplicationService.cs |   2 +
 .../Queries/WorkflowExecutionQueryModels.cs   |  14 +
 ...orkflowExecutionQueryApplicationService.cs |   6 +-
 .../CapabilityApi/ChatQueryEndpoints.cs       |  43 +-
 ...owCapabilityServiceCollectionExtensions.cs |  39 +-
 .../WorkflowExecutionProjectionOptions.cs     |  30 --
 .../ServiceCollectionExtensions.cs            |  28 +-
 .../IWorkflowProjectionQueryReader.cs         |   2 +
 .../IWorkflowReadModelSelectionPlanner.cs     |  15 -
 ...WorkflowExecutionProjectionQueryService.cs |  35 +-
 .../WorkflowProjectionQueryReader.cs          |  34 +-
 .../WorkflowReadModelSelectionPlanner.cs      |  82 ----
 ...ReadModelStartupValidationHostedService.cs |  18 +-
 .../WorkflowExecutionReadModelProjector.cs    |   1 +
 .../WorkflowExecutionRelationProjector.cs     |  10 +-
 .../Aevatar.Workflow.Projection/README.md     |  25 +-
 .../ReadModels/WorkflowExecutionReadModel.cs  |   2 +
 ...tionProviderServiceCollectionExtensions.cs |  74 +++-
 .../ProjectionStoreSelectionPlannerTests.cs   |  97 +++++
 .../WorkflowApplicationLayerTests.cs          |   4 +
 .../ChatEndpointsInternalTests.cs             |  34 +-
 ...hatWebSocketCoordinatorAndProtocolTests.cs |  13 +-
 ...orkflowCapabilityEndpointsCoverageTests.cs |   2 +
 ...lowExecutionProjectionRegistrationTests.cs |  70 ++--
 ...WorkflowExecutionProjectionServiceTests.cs |   6 +-
 ...WorkflowExecutionRelationProjectorTests.cs |   2 +
 .../WorkflowHostingExtensionsCoverageTests.cs |  29 ++
 .../WorkflowReadModelSelectionPlannerTests.cs | 103 -----
 39 files changed, 1011 insertions(+), 356 deletions(-)
 create mode 100644 docs/architecture/readmodel-simple-rich-capability-refactor-blueprint-2026-02-24.md
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionPlanner.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionRuntimeOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionStoreSelectionPlan.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
 create mode 100644 src/Aevatar.Foundation.Projection/ReadModels/ProjectionReadModelBase.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
 create mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs
 delete mode 100644 test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs

diff --git a/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md b/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
index a78a33455..3cd7701a9 100644
--- a/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
+++ b/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
@@ -139,14 +139,15 @@
 - `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
 - `src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`
 - `src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs`
-- `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs`
+- `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs`
+- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs`
 - `src/workflow/Aevatar.Workflow.Projection/README.md`
 
 改造项：
 
 1. Provider 注册改为按需注册，不再全量注册三套 provider。
-2. 配置缺失与未知 provider 启动即失败。
-3. 移除隐式 provider 默认回退行为（保持配置显式化）。
+2. 未知 provider 启动即失败；缺失 provider 时仅在 Host 组合层应用默认值（`InMemory`）。
+3. Workflow 业务选项移除 provider 语义，统一由 `ProjectionReadModelRuntimeOptions` 承载。
 4. 文档示例统一改为 `FullName` 绑定键。
 
 ## 5. 测试计划（必须新增）
diff --git a/docs/architecture/readmodel-simple-rich-capability-refactor-blueprint-2026-02-24.md b/docs/architecture/readmodel-simple-rich-capability-refactor-blueprint-2026-02-24.md
new file mode 100644
index 000000000..2349822ee
--- /dev/null
+++ b/docs/architecture/readmodel-simple-rich-capability-refactor-blueprint-2026-02-24.md
@@ -0,0 +1,381 @@
+# ReadModel 双速能力架构重构文档（Simple + Rich）
+
+## 1. 文档信息
+- 状态：Proposed（Breaking, 不保留兼容层）
+- 版本：v1.0
+- 日期：2026-02-24
+- 适用范围：`src/Aevatar.CQRS.Projection.*`、`src/workflow/*`、`test/*`、`tools/ci/*`
+- 目标：实现“默认简单开发路径 + 可治理的高级能力路径”，并保持单一 Projection 主链路
+
+## 2. 背景与问题
+
+### 2.1 当前问题
+1. ReadModel 与 Relation 能力已具备基础框架，但“简单场景”和“复杂场景”缺少统一分层策略。
+2. 一些领域语义（如 `StartedAt`）曾被误放到基础抽象，导致抽象层与 Workflow 语义耦合。
+3. 关系查询能力可用但表达力有限，难以覆盖复杂图查询（过滤、路径约束、分页游标、多根聚合）。
+4. Provider 组合虽支持 split（ReadModel/Relation 分离），但缺少环境分级模板与强门禁，易误配。
+5. 存在空类/薄封装类，基础抽象复用不足，增加维护成本。
+
+### 2.2 根因
+1. “能力扩展点”与“默认路径”未显式分层。
+2. 能力声明、模型定义、Provider 选择存在，但缺少统一的“模型 Profile + 环境策略”收敛机制。
+3. 治理规则没有完整固化到启动校验和 CI 门禁（尤其生产环境组合约束）。
+
+## 3. 重构目标
+
+### 3.1 主目标
+1. 保持最小开发路径：普通业务只需实现 ReadModel + Reducer，不需要理解图能力细节。
+2. 提供丰富能力路径：复杂需求可启用 Graph/Relation/Advanced Query，不污染默认路径。
+3. 严格分层：`Domain / Application / Infrastructure / Host`，`Workflow` 不侵入基础抽象语义。
+4. 单一主链路：所有能力基于统一 Projection Pipeline 插件化扩展，不引入第二系统。
+5. 可治理：启动期 fail-fast + CI guard，确保环境配置、能力声明、实现行为一致。
+6. 职责边界清晰：`Workflow` 不负责 `Graph/Document` 与 provider 选择，选择权在业务方组合层。
+
+### 3.2 非目标
+1. 不引入额外中间层事实缓存（禁止 `actorId -> context` 进程内事实态映射）。
+2. 不在本轮引入跨产品通用图分析 DSL 引擎。
+3. 不保留历史兼容壳层。
+4. 不在 `Workflow` 业务层编排 provider/index kind 选择逻辑。
+
+## 4. 设计原则
+1. 默认极简：内核接口最小化，降低开发门槛。
+2. 能力叠加：高级能力通过可选接口/能力声明按需启用。
+3. 约束优先：任何扩展必须走能力校验和策略合并，禁止绕过选择器。
+4. 语义分层：基础层只保留通用语义（`CreatedAt/UpdatedAt`），领域语义下沉到领域模型。
+5. 一致性可选分级：默认最终一致；强一致需求通过可选模式（Outbox/Checkpoint）开启。
+6. 组合层决策：ReadModel 投影到哪个 provider 由业务方/Host 组合层决定，Workflow 只消费抽象端口。
+
+## 5. 目标架构
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    A["Domain Events"] --> B["Unified Projection Pipeline"]
+    B --> C["ReadModel Projector"]
+    B --> D["Relation Projector"]
+    C --> E["IProjectionReadModelStore<T, TKey>"]
+    D --> F["IProjectionRelationStore"]
+    E --> G["Document ReadModels"]
+    F --> H["Graph Facts(Node/Edge)"]
+    I["ReadModel Profile"] --> J["Requirements Builder"]
+    K["Environment Policy"] --> J
+    J --> L["Capability Validator"]
+    L --> M["Provider Selector"]
+    M --> E
+    M --> F
+```
+
+### 5.1 关键点
+1. 只保留一个权威主链：`Event -> Projector -> Store`。
+2. 复杂能力通过 Profile 与 Policy 驱动 Provider 选择，不在 `Workflow` 业务代码里硬编码 Provider。
+3. Workflow/AI 等领域仅定义“自己的模型和关系语义”，不修改基础抽象含义。
+4. Provider 选择权在业务方组合层，Runtime 负责能力校验与 fail-fast。
+
+## 6. 抽象层重构（Abstractions）
+
+### 6.1 统一基础实体基类（消除空类）
+新增统一基类（示意）：
+
+```csharp
+public abstract class ProjectionReadModelBase<TKey>
+    where TKey : notnull
+{
+    public TKey Id { get; init; } = default!;
+    public long StateVersion { get; set; }
+    public string LastEventId { get; set; } = string.Empty;
+    public DateTimeOffset CreatedAt { get; set; } = DateTimeOffset.UtcNow;
+    public DateTimeOffset UpdatedAt { get; set; } = DateTimeOffset.UtcNow;
+}
+```
+
+规则：
+1. 基类只包含跨域通用语义，不包含 Workflow 特有字段（如 `StartedAt`）。
+2. 领域字段（例如 `StartedAt/EndedAt/Duration`）保留在领域 ReadModel 内。
+
+### 6.2 双层能力接口
+保留最小接口：
+1. `IProjectionReadModelStore<TReadModel, TKey>`
+
+新增可选高级接口（示意）：
+1. `IProjectionReadModelQueryStore<TReadModel, TKey>`：条件过滤、分页游标、多字段排序。
+2. `IProjectionRelationStore`：节点/边写入与基础邻接查询。
+3. `IProjectionRelationTraversalStore`：子图/路径遍历（可独立能力开关）。
+4. `IProjectionSchemaValidationCapability`：Schema 校验能力声明与执行入口。
+5. `IProjectionAliasCapability`：Alias 能力声明与执行入口。
+
+说明：
+1. 高级接口均为可选实现，不影响默认路径。
+2. 选择器根据 `Capabilities` 判定可用性，禁止运行时盲调。
+
+### 6.3 ReadModel Profile（模型声明式扩展）
+新增 `IReadModelProfile<TReadModel, TKey>`（示意职责，由业务方在组合层声明）：
+1. 声明模型索引类型要求（`Document/Graph`）。
+2. 声明关系能力要求（`RequiresRelations/RequiresTraversal`）。
+3. 声明默认排序（建议 `CreatedAt desc, UpdatedAt desc, Id desc`）。
+4. 声明关系节点/边 ID 规则。
+
+Profile 合并优先级：
+1. `GlobalDefault < ModelProfile < EnvironmentOverride`
+2. 只允许“收紧要求”，不允许“放松底线”。
+
+## 7. 关系模型重构（Relations）
+
+### 7.1 关系属性类型升级
+当前 `Dictionary<string,string>` 升级为可序列化值模型（示意）：
+1. `Dictionary<string, ProjectionValue>`
+2. `ProjectionValue` 支持 `string/number/bool/datetime/json`
+
+目标：
+1. 保持可移植序列化。
+2. 支持复杂过滤和排序。
+
+### 7.2 关系 ID 规则标准化
+统一规则：
+1. 节点 ID 必须包含业务隔离维度（如 `tenant`、`rootActorId`、`commandId`）。
+2. Step 节点强制包含 run 维度，禁止 `step:{rootActorId}:{stepId}` 这种会跨 run 冲突的格式。
+
+建议格式：
+1. `run:{rootActorId}:{commandId}`
+2. `step:{rootActorId}:{commandId}:{stepId}`
+
+### 7.3 关系查询分层
+1. 简单查询：邻居查询（默认 API）。
+2. 中级查询：有界深度子图。
+3. 高级查询：关系类型过滤 + 属性过滤 + 游标分页 + 路径约束（高级接口/高级端点）。
+
+## 8. Provider 分级策略（Simple -> Rich）
+
+说明：
+1. 本节模板由业务方在 Host/组合层应用。
+2. `Workflow` 层不读取、不判断 provider 类型；只通过抽象端口读写投影。
+
+### 8.1 环境模板
+1. `LocalDev`
+- ReadModel: `InMemory` 或 `Elasticsearch`
+- Relation: `InMemory`（仅开发）
+- 用途：快速反馈
+
+2. `Standard(Production)`
+- ReadModel: `Elasticsearch`
+- Relation: `Neo4j`
+- 用途：生产默认推荐，文档检索 + 图关系可用
+
+3. `DocOnly(Production)`
+- ReadModel: `Elasticsearch`
+- Relation: Disabled
+- 用途：不需要图关系的场景
+
+4. `GraphAdvanced(Production)`
+- ReadModel: `Neo4j` 或双写策略
+- Relation: `Neo4j`
+- 用途：高图密度业务
+
+### 8.2 强约束
+1. 生产环境禁止 `InMemoryRelationStore` 作为事实源（启动即失败）。
+2. 生产环境强制 `FailOnUnsupportedCapabilities=true`。
+3. 若启用关系 API，必须 `RequiresRelations=true` 且 relation provider 支持 traversal。
+
+## 9. Runtime 选择与校验重构
+
+### 9.1 选择流程
+1. 业务方在 Host 组合层提供 `GlobalReadModelOptions + ReadModelProfile`。
+2. Runtime 合并 `ReadModelProfile`。
+3. Runtime 应用 `EnvironmentPolicy`。
+4. Runtime 生成 `ProjectionReadModelRequirements`。
+5. Runtime 执行 `CapabilityValidator`。
+6. Runtime 选择 readmodel/relation provider。
+7. 启动校验（Host startup validator）在应用启动前 fail-fast。
+
+### 9.2 错误模型
+1. Provider 未指定且多注册：明确抛错。
+2. 能力不匹配：结构化异常包含 `requirements/capabilities/violations`。
+3. 生产策略违规（如 in-memory relation）：专用策略异常。
+
+## 10. Workflow 分层收敛
+
+### 10.1 基础抽象去 Workflow 语义
+1. 基类只保留 `CreatedAt/UpdatedAt`。
+2. `StartedAt/EndedAt` 保留在 `WorkflowExecutionReport`（领域模型）。
+
+### 10.2 Workflow 与 Provider 边界
+1. Workflow 只依赖：
+- `IProjectionReadModelStore`
+- `IProjectionRelationStore`
+2. Workflow 不包含：
+- `Graph/Document` 选择分支
+- `Elasticsearch/Neo4j/InMemory` provider 分支
+- capability 协商逻辑
+3. 若 provider 能力不匹配，由 Runtime/启动校验报错，不在 Workflow 内做兜底分支。
+
+### 10.3 Query 接口分层
+1. 基础端点保留：
+- `/actors/{actorId}`
+- `/actors/{actorId}/timeline`
+- `/actors/{actorId}/relations`
+- `/actors/{actorId}/relation-subgraph`
+
+2. 高级端点新增（可选）：
+- 支持 `direction`、`relationTypes`、`property filters`、`cursor`。
+- 这些是业务查询语义，不代表 Workflow 在做 provider/index kind 决策。
+
+### 10.4 投影职责
+1. ReadModelProjector：只负责文档视图。
+2. RelationProjector：只负责图事实写入。
+3. Coordinator：保持统一调度，不在 Workflow 层引入二次编排系统。
+
+## 11. 一致性与幂等策略
+
+### 11.1 默认模式（最终一致）
+1. ReadModel 和 Relation 独立写入。
+2. OCC + 去重保证单存储内正确性。
+
+### 11.2 强一致增强模式（可选）
+1. 引入 Projection Outbox（事件级写入意图记录）。
+2. 以 `eventId + projector` 作为幂等键。
+3. 使用 checkpoint/compensation 补偿部分成功。
+
+### 11.3 幂等键规则
+1. `dedupKey = {projectionId}:{eventId}:{projectorName}`
+2. relation edge upsert 使用确定性 edgeId，禁止随机 ID。
+
+## 12. 索引与排序策略
+
+### 12.1 默认排序
+1. 默认 `CreatedAt desc`
+2. 次排序 `UpdatedAt desc`
+3. 稳定 tie-break `Id desc`（或 `_id desc`）
+
+### 12.2 约束
+1. 任意 provider 的 `ListAsync` 必须提供稳定顺序保证。
+2. 若 provider 无法保证稳定排序，必须显式抛错，不允许“静默无序”。
+
+## 13. 配置模型重构
+
+### 13.1 配置分区
+1. `Projection:ReadModel:*`：业务方在 Host 组合层声明全局默认与 Provider 配置。
+2. `Projection:Policies:*`：环境策略（例如 production guard）。
+3. `Projection:Profiles:*`：按模型覆盖规则。
+
+### 13.2 配置示例（生产标准模板）
+
+```yaml
+Projection:
+  ReadModel:
+    Provider: Elasticsearch
+    RelationProvider: Neo4j
+    FailOnUnsupportedCapabilities: true
+    Bindings:
+      Aevatar.Workflow.Projection.ReadModels.WorkflowExecutionReport: Graph
+    Providers:
+      Elasticsearch:
+        Endpoints: ["http://elasticsearch:9200"]
+        IndexPrefix: "aevatar"
+        MissingIndexBehavior: Throw
+      Neo4j:
+        Uri: "bolt://neo4j:7687"
+        AutoCreateConstraints: true
+  Policies:
+    Environment: Production
+    DenyInMemoryRelationFactStore: true
+```
+
+## 14. 代码级重构清单（按层）
+
+### 14.1 Abstractions
+1. 新增 `ProjectionReadModelBase<TKey>`（或等价通用基类）。
+2. 新增 `IReadModelProfile<TReadModel, TKey>` 与 Profile 描述模型。
+3. 新增高级可选接口：Query/Traversal/Schema/Alias 能力接口。
+4. 升级关系属性类型定义，支持 typed value。
+
+### 14.2 Runtime
+1. 新增 Profile Registry + Requirements Builder。
+2. 新增 Policy Validator（环境策略校验）。
+3. 扩展 selector 日志，输出最终合并后的 requirements。
+
+### 14.3 Providers
+1. InMemory Provider 显式标注 `DevOnly` 元数据。
+2. Elasticsearch Provider 保持 Document 优先，明确高级查询能力边界。
+3. Neo4j Provider 承担 Relation + Traversal 主实现，并补齐 e2e 验证。
+
+### 14.4 Workflow
+1. 替换 Step 节点 ID 规则，纳入 `commandId` 维度。
+2. Query 只透传业务查询参数，不承载 provider/index kind 选择逻辑。
+3. 维持默认简单 API，不破坏使用门槛。
+
+## 15. 测试与门禁
+
+### 15.1 新增测试
+1. Profile 合并优先级测试（Global/Profile/Env）。
+2. 生产策略测试（禁止 InMemory Relation）。
+3. Relation Provider e2e（Neo4j）：
+- 节点/边 upsert
+- 邻居查询
+- 深度子图
+- 过滤/分页（若启用高级查询）
+4. Step 节点 ID 唯一性测试（跨 run 不冲突）。
+
+### 15.2 CI 门禁
+1. `tools/ci/architecture_guards.sh`：
+- 禁止基础抽象出现 Workflow 语义字段名。
+- 禁止中间层 `actor/run/session` 事实态字典字段。
+2. `tools/ci/projection_provider_e2e_smoke.sh`：
+- 增加 relation provider e2e 目标与 executed==total 校验。
+3. 生产配置扫描：
+- `Production + InMemoryRelationProvider` 直接 fail。
+
+## 16. 分阶段实施计划
+
+### Phase 1（基础抽象收敛）
+1. 引入通用基类与 Profile 抽象。
+2. 清理空类与无价值薄封装。
+3. 完成基础单测。
+
+### Phase 2（能力分层落地）
+1. 引入高级可选接口与 capability 路径。
+2. Runtime 增加 Profile+Policy 合并与校验。
+3. 保持默认调用路径不变。
+
+### Phase 3（Provider 与 Workflow 深化）
+1. Workflow Step ID 规则修复。
+2. 高级关系查询链路贯通（端口到 API）。
+3. Relation e2e 与生产策略门禁落地。
+
+### Phase 4（生产切换）
+1. 默认生产模板切至 `Elasticsearch + Neo4j`。
+2. 灰度启用高级查询能力。
+3. 观察指标与告警收敛。
+
+## 17. 可观测性与运维
+1. 指标：
+- provider selection failure
+- capability violation
+- relation query p95/p99
+- subgraph result size
+- OCC conflict retry count
+2. 日志：
+- 结构化输出 `requirements/capabilities/provider`
+3. 告警：
+- 生产策略违规配置
+- relation traversal error rate 超阈值
+
+## 18. 风险与应对
+1. 风险：高级能力接口扩展过快导致复杂度回升。
+- 应对：接口增量必须有真实场景和 e2e 覆盖。
+2. 风险：强一致模式引入写放大。
+- 应对：默认保持最终一致，按域开启强一致。
+3. 风险：Provider 能力声明与实现漂移。
+- 应对：能力声明一致性测试 + 启动期校验 + e2e。
+
+## 19. 验收标准（DoD）
+1. 默认开发路径只需 ReadModel + Reducer 即可运行。
+2. 复杂能力通过 Profile/Policy 可启用且受校验治理。
+3. 基础抽象不含 Workflow 语义字段（仅通用元数据）。
+4. 生产标准模板不允许 InMemory Relation 事实源。
+5. Workflow 代码中不存在 provider/index kind 选择分支。
+6. Relation e2e + 架构门禁 + 全量 build/test 通过。
+
+## 20. 结论
+本方案通过“默认极简 + 能力插件 + 治理前置”实现双速架构：
+1. 让大多数开发者保持低认知成本。
+2. 让复杂需求获得可扩展、可验证、可运维的高级能力。
+3. 避免抽象层次倒挂和语义污染，维持长期演进质量。
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionPlanner.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionPlanner.cs
new file mode 100644
index 000000000..57bf0a36f
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionPlanner.cs
@@ -0,0 +1,9 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionStoreSelectionPlanner
+{
+    ProjectionStoreSelectionPlan Build(
+        IProjectionStoreSelectionRuntimeOptions options,
+        Type readModelType,
+        ProjectionReadModelRequirements relationRequirements);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionRuntimeOptions.cs
new file mode 100644
index 000000000..85cc8147f
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionRuntimeOptions.cs
@@ -0,0 +1,14 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionStoreSelectionRuntimeOptions
+{
+    string ReadModelProvider { get; }
+
+    string RelationProvider { get; }
+
+    bool FailOnUnsupportedCapabilities { get; }
+
+    ProjectionReadModelMode ReadModelMode { get; }
+
+    IReadOnlyDictionary<string, string> ReadModelBindings { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
index 7132b612d..d141e0efa 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Abstractions;
 
-public sealed class ProjectionReadModelRuntimeOptions
+public sealed class ProjectionReadModelRuntimeOptions : IProjectionStoreSelectionRuntimeOptions
 {
     public ProjectionReadModelRuntimeOptions()
     {
@@ -16,4 +16,14 @@ public ProjectionReadModelRuntimeOptions()
     public bool FailOnUnsupportedCapabilities { get; set; } = true;
 
     public Dictionary<string, string> Bindings { get; }
+
+    string IProjectionStoreSelectionRuntimeOptions.ReadModelProvider => Provider;
+
+    string IProjectionStoreSelectionRuntimeOptions.RelationProvider => RelationProvider;
+
+    bool IProjectionStoreSelectionRuntimeOptions.FailOnUnsupportedCapabilities => FailOnUnsupportedCapabilities;
+
+    ProjectionReadModelMode IProjectionStoreSelectionRuntimeOptions.ReadModelMode => Mode;
+
+    IReadOnlyDictionary<string, string> IProjectionStoreSelectionRuntimeOptions.ReadModelBindings => Bindings;
 }
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionStoreSelectionPlan.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionStoreSelectionPlan.cs
new file mode 100644
index 000000000..93f5fdf27
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionStoreSelectionPlan.cs
@@ -0,0 +1,7 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public readonly record struct ProjectionStoreSelectionPlan(
+    ProjectionReadModelRequirements ReadModelRequirements,
+    ProjectionReadModelStoreSelectionOptions ReadModelSelectionOptions,
+    ProjectionReadModelRequirements RelationRequirements,
+    ProjectionReadModelStoreSelectionOptions RelationSelectionOptions);
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index 0d1c3f1fd..860fa1fc6 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -12,6 +12,7 @@ public static IServiceCollection AddProjectionReadModelRuntime(this IServiceColl
         services.TryAddSingleton<IProjectionReadModelProviderRegistry, ProjectionReadModelProviderRegistry>();
         services.TryAddSingleton<IProjectionReadModelProviderSelector, ProjectionReadModelProviderSelector>();
         services.TryAddSingleton<IProjectionReadModelBindingResolver, ProjectionReadModelBindingResolver>();
+        services.TryAddSingleton<IProjectionStoreSelectionPlanner, ProjectionStoreSelectionPlanner>();
         services.TryAddSingleton<IProjectionReadModelStoreFactory, ProjectionReadModelStoreFactory>();
         services.TryAddSingleton<IProjectionRelationStoreProviderRegistry, ProjectionRelationStoreProviderRegistry>();
         services.TryAddSingleton<IProjectionRelationStoreProviderSelector, ProjectionRelationStoreProviderSelector>();
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
new file mode 100644
index 000000000..fabcb2120
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
@@ -0,0 +1,89 @@
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionStoreSelectionPlanner : IProjectionStoreSelectionPlanner
+{
+    private readonly IProjectionReadModelBindingResolver _bindingResolver;
+
+    public ProjectionStoreSelectionPlanner(IProjectionReadModelBindingResolver bindingResolver)
+    {
+        _bindingResolver = bindingResolver;
+    }
+
+    public ProjectionStoreSelectionPlan Build(
+        IProjectionStoreSelectionRuntimeOptions options,
+        Type readModelType,
+        ProjectionReadModelRequirements relationRequirements)
+    {
+        ArgumentNullException.ThrowIfNull(options);
+        ArgumentNullException.ThrowIfNull(readModelType);
+        ArgumentNullException.ThrowIfNull(relationRequirements);
+        EnsureReadModelModeSupported(options.ReadModelMode);
+
+        var readModelRequirements = _bindingResolver.Resolve(options.ReadModelBindings, readModelType);
+        var readModelProvider = NormalizeRequiredProviderName(options.ReadModelProvider);
+        var readModelSelectionOptions = new ProjectionReadModelStoreSelectionOptions
+        {
+            RequestedProviderName = readModelProvider,
+            FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
+        };
+
+        var mergedRelationRequirements = MergeRelationRequirements(readModelRequirements, relationRequirements);
+        var relationSelectionOptions = new ProjectionReadModelStoreSelectionOptions
+        {
+            RequestedProviderName = NormalizeRelationProviderName(
+                options.RelationProvider,
+                readModelProvider),
+            FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
+        };
+
+        return new ProjectionStoreSelectionPlan(
+            readModelRequirements,
+            readModelSelectionOptions,
+            mergedRelationRequirements,
+            relationSelectionOptions);
+    }
+
+    private static ProjectionReadModelRequirements MergeRelationRequirements(
+        ProjectionReadModelRequirements readModelRequirements,
+        ProjectionReadModelRequirements relationRequirements)
+    {
+        return new ProjectionReadModelRequirements(
+            requiresIndexing: relationRequirements.RequiresIndexing,
+            requiredIndexKinds: relationRequirements.RequiredIndexKinds,
+            requiresAliases: relationRequirements.RequiresAliases || readModelRequirements.RequiresAliases,
+            requiresSchemaValidation: relationRequirements.RequiresSchemaValidation || readModelRequirements.RequiresSchemaValidation,
+            requiresRelations: relationRequirements.RequiresRelations,
+            requiresRelationTraversal: relationRequirements.RequiresRelationTraversal);
+    }
+
+    private static string NormalizeRequiredProviderName(string providerName)
+    {
+        if (string.IsNullOrWhiteSpace(providerName))
+        {
+            throw new InvalidOperationException(
+                "Projection read-model provider is required and cannot be empty.");
+        }
+
+        return providerName.Trim();
+    }
+
+    private static string NormalizeRelationProviderName(
+        string relationProviderName,
+        string fallbackProviderName)
+    {
+        if (string.IsNullOrWhiteSpace(relationProviderName))
+            return fallbackProviderName;
+
+        return relationProviderName.Trim();
+    }
+
+    private static void EnsureReadModelModeSupported(ProjectionReadModelMode readModelMode)
+    {
+        if (readModelMode != ProjectionReadModelMode.StateOnly)
+            return;
+
+        throw new InvalidOperationException(
+            "Projection store selection does not support Projection:ReadModel:Mode=StateOnly. " +
+            "Use CustomReadModel or DefaultReadModel.");
+    }
+}
diff --git a/src/Aevatar.Foundation.Projection/ReadModels/AevatarReadModelBase.cs b/src/Aevatar.Foundation.Projection/ReadModels/AevatarReadModelBase.cs
index 0fa183133..4b9e163dc 100644
--- a/src/Aevatar.Foundation.Projection/ReadModels/AevatarReadModelBase.cs
+++ b/src/Aevatar.Foundation.Projection/ReadModels/AevatarReadModelBase.cs
@@ -1,14 +1,10 @@
 namespace Aevatar.Foundation.Projection.ReadModels;
 
 /// <summary>
-/// Minimal cross-domain read model envelope metadata.
+/// Minimal cross-domain read model metadata.
+/// Keep this base workflow-agnostic: domain-specific identifiers must stay in domain read models.
 /// </summary>
 public abstract class AevatarReadModelBase
+    : ProjectionReadModelBase<string>
 {
-    public string RootActorId { get; set; } = string.Empty;
-    public string CommandId { get; set; } = string.Empty;
-    public long StateVersion { get; set; }
-    public string LastEventId { get; set; } = string.Empty;
-    public DateTimeOffset CreatedAt { get; set; } = DateTimeOffset.UtcNow;
-    public DateTimeOffset UpdatedAt { get; set; } = DateTimeOffset.UtcNow;
 }
diff --git a/src/Aevatar.Foundation.Projection/ReadModels/ProjectionReadModelBase.cs b/src/Aevatar.Foundation.Projection/ReadModels/ProjectionReadModelBase.cs
new file mode 100644
index 000000000..a6e20f502
--- /dev/null
+++ b/src/Aevatar.Foundation.Projection/ReadModels/ProjectionReadModelBase.cs
@@ -0,0 +1,15 @@
+namespace Aevatar.Foundation.Projection.ReadModels;
+
+/// <summary>
+/// Generic projection read-model metadata base.
+/// Domain-specific identity fields should live in domain models.
+/// </summary>
+public abstract class ProjectionReadModelBase<TKey>
+    where TKey : notnull
+{
+    public TKey Id { get; set; } = default!;
+    public long StateVersion { get; set; }
+    public string LastEventId { get; set; } = string.Empty;
+    public DateTimeOffset CreatedAt { get; set; } = DateTimeOffset.UtcNow;
+    public DateTimeOffset UpdatedAt { get; set; } = DateTimeOffset.UtcNow;
+}
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
index 451207ba1..edb675e6c 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
@@ -22,11 +22,13 @@ Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
     Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
         string actorId,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default);
 
     Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
index a50f6f8ac..a0babd74b 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
@@ -15,11 +15,13 @@ public interface IWorkflowExecutionQueryApplicationService
     Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
         string actorId,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default);
 
     Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
index 8c8015720..065143f2c 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
@@ -45,6 +45,20 @@ public sealed class WorkflowActorRelationNode
     public Dictionary<string, string> Properties { get; set; } = [];
 }
 
+public enum WorkflowActorRelationDirection
+{
+    Outbound = 0,
+    Inbound = 1,
+    Both = 2,
+}
+
+public sealed class WorkflowActorRelationQueryOptions
+{
+    public WorkflowActorRelationDirection Direction { get; set; } = WorkflowActorRelationDirection.Both;
+
+    public IReadOnlyList<string> RelationTypes { get; set; } = [];
+}
+
 public sealed class WorkflowActorRelationItem
 {
     public string EdgeId { get; set; } = string.Empty;
diff --git a/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs b/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
index e4164373b..56c34b67a 100644
--- a/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
+++ b/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
@@ -58,18 +58,20 @@ public async Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsy
     public async Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
         string actorId,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default)
     {
         if (!ActorQueryEnabled || string.IsNullOrWhiteSpace(actorId))
             return [];
 
-        return await _projectionPort.GetActorRelationsAsync(actorId, take, ct);
+        return await _projectionPort.GetActorRelationsAsync(actorId, take, options, ct);
     }
 
     public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default)
     {
         if (!ActorQueryEnabled || string.IsNullOrWhiteSpace(actorId))
@@ -78,6 +80,6 @@ public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
                 RootNodeId = actorId ?? string.Empty,
             };
 
-        return await _projectionPort.GetActorRelationSubgraphAsync(actorId, depth, take, ct);
+        return await _projectionPort.GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
     }
 }
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs b/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
index c1a85fafd..70f4ca4dc 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
@@ -63,9 +63,12 @@ internal static async Task<IResult> ListActorRelations(
         string actorId,
         IWorkflowExecutionQueryApplicationService queryService,
         int take = 200,
+        string? direction = null,
+        string[]? relationTypes = null,
         CancellationToken ct = default)
     {
-        var relations = await queryService.ListActorRelationsAsync(actorId, take, ct);
+        var relationOptions = BuildRelationQueryOptions(direction, relationTypes);
+        var relations = await queryService.ListActorRelationsAsync(actorId, take, relationOptions, ct);
         return Results.Ok(relations);
     }
 
@@ -74,10 +77,46 @@ internal static async Task<IResult> GetActorRelationSubgraph(
         IWorkflowExecutionQueryApplicationService queryService,
         int depth = 2,
         int take = 200,
+        string? direction = null,
+        string[]? relationTypes = null,
         CancellationToken ct = default)
     {
-        var subgraph = await queryService.GetActorRelationSubgraphAsync(actorId, depth, take, ct);
+        var relationOptions = BuildRelationQueryOptions(direction, relationTypes);
+        var subgraph = await queryService.GetActorRelationSubgraphAsync(actorId, depth, take, relationOptions, ct);
         return Results.Ok(subgraph);
     }
 
+    private static WorkflowActorRelationQueryOptions BuildRelationQueryOptions(
+        string? direction,
+        string[]? relationTypes)
+    {
+        return new WorkflowActorRelationQueryOptions
+        {
+            Direction = ParseDirection(direction),
+            RelationTypes = NormalizeRelationTypes(relationTypes),
+        };
+    }
+
+    private static WorkflowActorRelationDirection ParseDirection(string? direction)
+    {
+        if (string.IsNullOrWhiteSpace(direction))
+            return WorkflowActorRelationDirection.Both;
+
+        return Enum.TryParse<WorkflowActorRelationDirection>(direction.Trim(), ignoreCase: true, out var parsed)
+            ? parsed
+            : WorkflowActorRelationDirection.Both;
+    }
+
+    private static IReadOnlyList<string> NormalizeRelationTypes(IReadOnlyList<string>? relationTypes)
+    {
+        if (relationTypes == null || relationTypes.Count == 0)
+            return [];
+
+        return relationTypes
+            .Select(x => x?.Trim() ?? "")
+            .Where(x => x.Length > 0)
+            .Distinct(StringComparer.Ordinal)
+            .ToArray();
+    }
+
 }
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
index d2c202aff..628e62e02 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs
@@ -1,10 +1,8 @@
 using Aevatar.Configuration;
-using Aevatar.CQRS.Projection.Abstractions;
 using Aevatar.Workflow.Application.DependencyInjection;
 using Aevatar.Workflow.Core;
 using Aevatar.Workflow.Presentation.AGUIAdapter;
 using Aevatar.Workflow.Presentation.AGUIAdapter.DependencyInjection;
-using Aevatar.Workflow.Projection.Configuration;
 using Aevatar.Workflow.Projection.DependencyInjection;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
@@ -19,10 +17,7 @@ public static IServiceCollection AddWorkflowCapability(
     {
         services.AddAevatarWorkflow();
         services.AddWorkflowExecutionProjectionCQRS(options =>
-        {
-            configuration.GetSection("WorkflowExecutionProjection").Bind(options);
-            ApplyGlobalReadModelOptions(configuration, options);
-        });
+            configuration.GetSection("WorkflowExecutionProjection").Bind(options));
         services.AddWorkflowExecutionAGUIAdapter();
         services.AddWorkflowExecutionProjectionProjector<WorkflowExecutionAGUIEventProjector>();
         services.AddWorkflowApplication();
@@ -37,36 +32,4 @@ public static IServiceCollection AddWorkflowCapability(
             configuration.GetSection("WorkflowExecutionReportArtifacts").Bind(options));
         return services;
     }
-
-    private static void ApplyGlobalReadModelOptions(
-        IConfiguration configuration,
-        WorkflowExecutionProjectionOptions options)
-    {
-        var readModelSection = configuration.GetSection("Projection:ReadModel");
-        if (!readModelSection.Exists())
-            return;
-
-        var readModelOptions = new ProjectionReadModelRuntimeOptions();
-        readModelSection.Bind(readModelOptions);
-
-        var configuredProvider = readModelSection["Provider"];
-        if (!string.IsNullOrWhiteSpace(configuredProvider))
-            options.ReadModelProvider = configuredProvider.Trim();
-        var configuredRelationProvider = readModelSection["RelationProvider"];
-        if (!string.IsNullOrWhiteSpace(configuredRelationProvider))
-            options.RelationProvider = configuredRelationProvider.Trim();
-
-        if (!string.IsNullOrWhiteSpace(readModelSection["Mode"]))
-            options.ReadModelMode = readModelOptions.Mode;
-        if (!string.IsNullOrWhiteSpace(readModelSection["FailOnUnsupportedCapabilities"]))
-            options.FailOnUnsupportedCapabilities = readModelOptions.FailOnUnsupportedCapabilities;
-
-        var bindingsSection = readModelSection.GetSection("Bindings");
-        if (bindingsSection.Exists())
-        {
-            options.ReadModelBindings.Clear();
-            foreach (var item in readModelOptions.Bindings)
-                options.ReadModelBindings[item.Key] = item.Value;
-        }
-    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
index a616ede49..a9b3d1cc0 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
@@ -6,10 +6,6 @@ namespace Aevatar.Workflow.Projection.Configuration;
 public sealed class WorkflowExecutionProjectionOptions
     : IProjectionRuntimeOptions
 {
-    public WorkflowExecutionProjectionOptions()
-    {
-        ReadModelBindings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
-    }
 
     /// <summary>
     /// Enables projection pipeline registration.
@@ -42,21 +38,6 @@ public bool EnableRunQueryEndpoints
     /// </summary>
     public int RunProjectionFinalizeGraceTimeoutMs { get; set; } = 1500;
 
-    /// <summary>
-    /// Read-model store provider name, e.g. InMemory/Elasticsearch.
-    /// </summary>
-    public string ReadModelProvider { get; set; } = ProjectionReadModelProviderNames.InMemory;
-
-    /// <summary>
-    /// Relation store provider name. Empty means fallback to <see cref="ReadModelProvider"/>.
-    /// </summary>
-    public string RelationProvider { get; set; } = "";
-
-    /// <summary>
-    /// Whether unsupported provider capabilities should fail fast during startup registration.
-    /// </summary>
-    public bool FailOnUnsupportedCapabilities { get; set; } = true;
-
     /// <summary>
     /// Whether to pre-validate read-model provider selection and capabilities during host startup.
     /// </summary>
@@ -66,15 +47,4 @@ public bool EnableRunQueryEndpoints
     /// Whether to pre-validate relation provider selection and capabilities during host startup.
     /// </summary>
     public bool ValidateRelationProviderOnStartup { get; set; } = true;
-
-    /// <summary>
-    /// Optional read-model binding requirements (ReadModelType.FullName -> IndexKind).
-    /// </summary>
-    public Dictionary<string, string> ReadModelBindings { get; }
-
-    /// <summary>
-    /// Read-model runtime mode.
-    /// Workflow keeps CustomReadModel as default; StateOnly is rejected during DI composition.
-    /// </summary>
-    public ProjectionReadModelMode ReadModelMode { get; set; } = ProjectionReadModelMode.CustomReadModel;
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index cc032d862..8830a00dc 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -1,3 +1,4 @@
+using Aevatar.CQRS.Projection.Abstractions;
 using Aevatar.Workflow.Projection.Configuration;
 using Aevatar.Workflow.Projection.Orchestration;
 using Aevatar.Workflow.Projection.ReadModels;
@@ -24,6 +25,11 @@ public static class ServiceCollectionExtensions
     private static readonly Type ProjectionProjectorContract = typeof(IProjectionProjector<,>);
     private static readonly Type WorkflowExecutionReducerContract = typeof(IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>);
     private static readonly Type WorkflowExecutionProjectorContract = typeof(IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>);
+    private static readonly ProjectionReadModelRequirements WorkflowRelationRequirements = new(
+        requiresRelations: true,
+        requiresRelationTraversal: true,
+        requiresAliases: false,
+        requiresSchemaValidation: false);
 
     public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         this IServiceCollection services,
@@ -34,9 +40,11 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.Replace(ServiceDescriptor.Singleton(options));
         services.TryAddSingleton<IProjectionRuntimeOptions>(sp =>
             sp.GetRequiredService<WorkflowExecutionProjectionOptions>());
+        services.TryAddSingleton<ProjectionReadModelRuntimeOptions>();
+        services.TryAddSingleton<IProjectionStoreSelectionRuntimeOptions>(sp =>
+            sp.GetRequiredService<ProjectionReadModelRuntimeOptions>());
         services.TryAddSingleton<IEventDeduplicator, PassthroughEventDeduplicator>();
         services.AddProjectionReadModelRuntime();
-        services.TryAddSingleton<IWorkflowReadModelSelectionPlanner, WorkflowReadModelSelectionPlanner>();
         RegisterWorkflowReadModelStoreSelector(services);
         RegisterWorkflowRelationStoreSelector(services);
         services.TryAddSingleton<IProjectionClock, SystemProjectionClock>();
@@ -120,10 +128,8 @@ private static void RegisterWorkflowReadModelStoreSelector(IServiceCollection se
     {
         services.Replace(ServiceDescriptor.Singleton<IProjectionReadModelStore<WorkflowExecutionReport, string>>(sp =>
         {
-            var options = sp.GetRequiredService<WorkflowExecutionProjectionOptions>();
-            var selectionPlanner = sp.GetRequiredService<IWorkflowReadModelSelectionPlanner>();
             var storeFactory = sp.GetRequiredService<IProjectionReadModelStoreFactory>();
-            var selectionPlan = selectionPlanner.Build(options);
+            var selectionPlan = BuildSelectionPlan(sp);
 
             return storeFactory.Create<WorkflowExecutionReport, string>(
                 sp,
@@ -136,10 +142,8 @@ private static void RegisterWorkflowRelationStoreSelector(IServiceCollection ser
     {
         services.Replace(ServiceDescriptor.Singleton<IProjectionRelationStore>(sp =>
         {
-            var options = sp.GetRequiredService<WorkflowExecutionProjectionOptions>();
-            var selectionPlanner = sp.GetRequiredService<IWorkflowReadModelSelectionPlanner>();
             var relationStoreFactory = sp.GetRequiredService<IProjectionRelationStoreFactory>();
-            var selectionPlan = selectionPlanner.Build(options);
+            var selectionPlan = BuildSelectionPlan(sp);
 
             return relationStoreFactory.Create(
                 sp,
@@ -148,6 +152,16 @@ private static void RegisterWorkflowRelationStoreSelector(IServiceCollection ser
         }));
     }
 
+    private static ProjectionStoreSelectionPlan BuildSelectionPlan(IServiceProvider serviceProvider)
+    {
+        var selectionPlanner = serviceProvider.GetRequiredService<IProjectionStoreSelectionPlanner>();
+        var runtimeOptions = serviceProvider.GetRequiredService<IProjectionStoreSelectionRuntimeOptions>();
+        return selectionPlanner.Build(
+            runtimeOptions,
+            typeof(WorkflowExecutionReport),
+            WorkflowRelationRequirements);
+    }
+
     private sealed class PassthroughEventDeduplicator : IEventDeduplicator
     {
         public Task<bool> TryRecordAsync(string eventId)
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
index 0d7547ad6..56b60c14d 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
@@ -20,11 +20,13 @@ Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
     Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
         string actorId,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default);
 
     Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs
deleted file mode 100644
index 0a4545779..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-using Aevatar.CQRS.Projection.Abstractions;
-using Aevatar.Workflow.Projection.Configuration;
-
-namespace Aevatar.Workflow.Projection.Orchestration;
-
-public readonly record struct WorkflowReadModelSelectionPlan(
-    ProjectionReadModelRequirements ReadModelRequirements,
-    ProjectionReadModelStoreSelectionOptions ReadModelSelectionOptions,
-    ProjectionReadModelRequirements RelationRequirements,
-    ProjectionReadModelStoreSelectionOptions RelationSelectionOptions);
-
-public interface IWorkflowReadModelSelectionPlanner
-{
-    WorkflowReadModelSelectionPlan Build(WorkflowExecutionProjectionOptions options);
-}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
index 742b2cae3..f916a7a70 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
@@ -40,15 +40,17 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
     public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
         string actorId,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default) =>
-        GetRelationsAsync(actorId, take, ct);
+        GetRelationsInternalAsync(actorId, take, options, ct);
 
     public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default) =>
-        GetRelationSubgraphAsync(actorId, depth, take, ct);
+        GetRelationSubgraphInternalAsync(actorId, depth, take, options, ct);
 
     protected override Task<WorkflowActorSnapshot?> ReadSnapshotCoreAsync(
         string entityId,
@@ -70,14 +72,14 @@ protected override Task<IReadOnlyList<WorkflowActorRelationItem>> ReadRelationsC
         string entityId,
         int take,
         CancellationToken ct)
-        => _queryReader.GetActorRelationsAsync(entityId, take, ct);
+        => _queryReader.GetActorRelationsAsync(entityId, take, options: null, ct);
 
     protected override Task<WorkflowActorRelationSubgraph> ReadRelationSubgraphCoreAsync(
         string entityId,
         int depth,
         int take,
         CancellationToken ct)
-        => _queryReader.GetActorRelationSubgraphAsync(entityId, depth, take, ct);
+        => _queryReader.GetActorRelationSubgraphAsync(entityId, depth, take, options: null, ct);
 
     protected override WorkflowActorRelationSubgraph CreateEmptyRelationSubgraph(string entityId)
     {
@@ -86,4 +88,29 @@ protected override WorkflowActorRelationSubgraph CreateEmptyRelationSubgraph(str
             RootNodeId = entityId ?? string.Empty,
         };
     }
+
+    private async Task<IReadOnlyList<WorkflowActorRelationItem>> GetRelationsInternalAsync(
+        string actorId,
+        int take,
+        WorkflowActorRelationQueryOptions? options,
+        CancellationToken ct)
+    {
+        if (!QueryEnabledCore || string.IsNullOrWhiteSpace(actorId))
+            return [];
+
+        return await _queryReader.GetActorRelationsAsync(actorId, take, options, ct);
+    }
+
+    private async Task<WorkflowActorRelationSubgraph> GetRelationSubgraphInternalAsync(
+        string actorId,
+        int depth,
+        int take,
+        WorkflowActorRelationQueryOptions? options,
+        CancellationToken ct)
+    {
+        if (!QueryEnabledCore || string.IsNullOrWhiteSpace(actorId))
+            return CreateEmptyRelationSubgraph(actorId);
+
+        return await _queryReader.GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
+    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
index 1e3b988be..dd264704c 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
@@ -58,6 +58,7 @@ public async Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsy
     public async Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
         string actorId,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default)
     {
         var actorIdValue = actorId?.Trim() ?? "";
@@ -65,12 +66,15 @@ public async Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsy
             return [];
 
         var boundedTake = Math.Clamp(take, 1, 1000);
+        var direction = MapDirection(options?.Direction ?? WorkflowActorRelationDirection.Both);
+        var relationTypes = NormalizeRelationTypes(options?.RelationTypes);
         var edges = await _relationStore.GetNeighborsAsync(
             new ProjectionRelationQuery
             {
                 Scope = WorkflowExecutionRelationConstants.Scope,
                 RootNodeId = actorIdValue,
-                Direction = ProjectionRelationDirection.Both,
+                Direction = direction,
+                RelationTypes = relationTypes,
                 Take = boundedTake,
             },
             ct);
@@ -81,6 +85,7 @@ public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default)
     {
         var actorIdValue = actorId?.Trim() ?? "";
@@ -89,16 +94,41 @@ public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
 
         var boundedDepth = Math.Clamp(depth, 1, 8);
         var boundedTake = Math.Clamp(take, 1, 2000);
+        var direction = MapDirection(options?.Direction ?? WorkflowActorRelationDirection.Both);
+        var relationTypes = NormalizeRelationTypes(options?.RelationTypes);
         var subgraph = await _relationStore.GetSubgraphAsync(
             new ProjectionRelationQuery
             {
                 Scope = WorkflowExecutionRelationConstants.Scope,
                 RootNodeId = actorIdValue,
-                Direction = ProjectionRelationDirection.Both,
+                Direction = direction,
+                RelationTypes = relationTypes,
                 Depth = boundedDepth,
                 Take = boundedTake,
             },
             ct);
         return _mapper.ToActorRelationSubgraph(actorIdValue, subgraph);
     }
+
+    private static ProjectionRelationDirection MapDirection(WorkflowActorRelationDirection direction)
+    {
+        return direction switch
+        {
+            WorkflowActorRelationDirection.Outbound => ProjectionRelationDirection.Outbound,
+            WorkflowActorRelationDirection.Inbound => ProjectionRelationDirection.Inbound,
+            _ => ProjectionRelationDirection.Both,
+        };
+    }
+
+    private static IReadOnlyList<string> NormalizeRelationTypes(IReadOnlyList<string>? relationTypes)
+    {
+        if (relationTypes == null || relationTypes.Count == 0)
+            return [];
+
+        return relationTypes
+            .Select(x => x?.Trim() ?? "")
+            .Where(x => x.Length > 0)
+            .Distinct(StringComparer.Ordinal)
+            .ToArray();
+    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
deleted file mode 100644
index 4d6d2669e..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs
+++ /dev/null
@@ -1,82 +0,0 @@
-using Aevatar.CQRS.Projection.Abstractions;
-using Aevatar.Workflow.Projection.Configuration;
-using Aevatar.Workflow.Projection.ReadModels;
-
-namespace Aevatar.Workflow.Projection.Orchestration;
-
-public sealed class WorkflowReadModelSelectionPlanner : IWorkflowReadModelSelectionPlanner
-{
-    private readonly IProjectionReadModelBindingResolver _bindingResolver;
-
-    public WorkflowReadModelSelectionPlanner(IProjectionReadModelBindingResolver bindingResolver)
-    {
-        _bindingResolver = bindingResolver;
-    }
-
-    public WorkflowReadModelSelectionPlan Build(WorkflowExecutionProjectionOptions options)
-    {
-        ArgumentNullException.ThrowIfNull(options);
-        EnsureReadModelModeSupported(options.ReadModelMode);
-
-        var readModelRequirements = _bindingResolver.Resolve(options.ReadModelBindings, typeof(WorkflowExecutionReport));
-        var readModelSelectionOptions = new ProjectionReadModelStoreSelectionOptions
-        {
-            RequestedProviderName = NormalizeRequiredProviderName(options.ReadModelProvider),
-            FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
-        };
-        var relationRequirements = BuildRelationRequirements(readModelRequirements);
-        var relationSelectionOptions = new ProjectionReadModelStoreSelectionOptions
-        {
-            RequestedProviderName = NormalizeRelationProviderName(
-                options.RelationProvider,
-                readModelSelectionOptions.RequestedProviderName),
-            FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
-        };
-
-        return new WorkflowReadModelSelectionPlan(
-            readModelRequirements,
-            readModelSelectionOptions,
-            relationRequirements,
-            relationSelectionOptions);
-    }
-
-    private static ProjectionReadModelRequirements BuildRelationRequirements(
-        ProjectionReadModelRequirements readModelRequirements)
-    {
-        // Workflow relation endpoints depend on relation storage + traversal as first-class capability.
-        return new ProjectionReadModelRequirements(
-            requiresRelations: true,
-            requiresRelationTraversal: true,
-            requiresAliases: readModelRequirements.RequiresAliases,
-            requiresSchemaValidation: readModelRequirements.RequiresSchemaValidation);
-    }
-
-    private static string NormalizeRequiredProviderName(string providerName)
-    {
-        if (string.IsNullOrWhiteSpace(providerName))
-        {
-            throw new InvalidOperationException(
-                "WorkflowExecutionProjection:ReadModelProvider is required and cannot be empty.");
-        }
-
-        return providerName.Trim();
-    }
-
-    private static string NormalizeRelationProviderName(string relationProviderName, string fallbackProviderName)
-    {
-        if (string.IsNullOrWhiteSpace(relationProviderName))
-            return fallbackProviderName;
-
-        return relationProviderName.Trim();
-    }
-
-    private static void EnsureReadModelModeSupported(ProjectionReadModelMode readModelMode)
-    {
-        if (readModelMode != ProjectionReadModelMode.StateOnly)
-            return;
-
-        throw new InvalidOperationException(
-            "Workflow projection does not support Projection:ReadModel:Mode=StateOnly. " +
-            "Use CustomReadModel or DefaultReadModel.");
-    }
-}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index c5c4e9bc2..36b8ee605 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -9,22 +9,31 @@ namespace Aevatar.Workflow.Projection.Orchestration;
 
 internal sealed class WorkflowReadModelStartupValidationHostedService : IHostedService
 {
+    private static readonly ProjectionReadModelRequirements WorkflowRelationRequirements = new(
+        requiresRelations: true,
+        requiresRelationTraversal: true,
+        requiresAliases: false,
+        requiresSchemaValidation: false);
+
     private readonly IServiceProvider _serviceProvider;
     private readonly WorkflowExecutionProjectionOptions _options;
-    private readonly IWorkflowReadModelSelectionPlanner _selectionPlanner;
+    private readonly IProjectionStoreSelectionPlanner _selectionPlanner;
+    private readonly IProjectionStoreSelectionRuntimeOptions _selectionRuntimeOptions;
     private readonly IProjectionStoreStartupValidator _startupValidator;
     private readonly ILogger<WorkflowReadModelStartupValidationHostedService> _logger;
 
     public WorkflowReadModelStartupValidationHostedService(
         IServiceProvider serviceProvider,
         WorkflowExecutionProjectionOptions options,
-        IWorkflowReadModelSelectionPlanner selectionPlanner,
+        IProjectionStoreSelectionPlanner selectionPlanner,
+        IProjectionStoreSelectionRuntimeOptions selectionRuntimeOptions,
         IProjectionStoreStartupValidator startupValidator,
         ILogger<WorkflowReadModelStartupValidationHostedService>? logger = null)
     {
         _serviceProvider = serviceProvider;
         _options = options;
         _selectionPlanner = selectionPlanner;
+        _selectionRuntimeOptions = selectionRuntimeOptions;
         _startupValidator = startupValidator;
         _logger = logger ?? NullLogger<WorkflowReadModelStartupValidationHostedService>.Instance;
     }
@@ -35,7 +44,10 @@ public Task StartAsync(CancellationToken cancellationToken)
         if (!_options.Enabled)
             return Task.CompletedTask;
 
-        var selectionPlan = _selectionPlanner.Build(_options);
+        var selectionPlan = _selectionPlanner.Build(
+            _selectionRuntimeOptions,
+            typeof(WorkflowExecutionReport),
+            WorkflowRelationRequirements);
 
         if (_options.ValidateReadModelProviderOnStartup)
         {
diff --git a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
index 7ce9c9000..334307b16 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
@@ -33,6 +33,7 @@ public ValueTask InitializeAsync(WorkflowExecutionProjectionContext context, Can
     {
         var report = new WorkflowExecutionReport
         {
+            Id = context.RootActorId,
             ReportVersion = "1.0",
             ProjectionScope = WorkflowExecutionProjectionScope.ActorShared,
             TopologySource = WorkflowExecutionTopologySource.RuntimeSnapshot,
diff --git a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
index c37d875b3..48310783b 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
@@ -146,7 +146,7 @@ private async Task UpsertStepRelationAsync(
             return;
 
         var normalizedStepId = NormalizeToken(rawStepId);
-        var stepNodeId = BuildStepNodeId(context.RootActorId, normalizedStepId);
+        var stepNodeId = BuildStepNodeId(context.RootActorId, context.CommandId, normalizedStepId);
         var stepTypeValue = stepType?.Trim() ?? "";
         var targetRoleValue = targetRole?.Trim() ?? "";
         var workerIdValue = workerId?.Trim() ?? "";
@@ -190,6 +190,7 @@ await _relationStore.UpsertNodeAsync(
             BuildStepNode(
                 stepNodeId,
                 context.RootActorId,
+                context.CommandId,
                 normalizedStepId,
                 stepTypeValue,
                 targetRoleValue,
@@ -270,6 +271,7 @@ private static ProjectionRelationNode BuildRunNode(
     private static ProjectionRelationNode BuildStepNode(
         string stepNodeId,
         string rootActorId,
+        string commandId,
         string stepId,
         string stepType,
         string targetRole,
@@ -285,6 +287,7 @@ private static ProjectionRelationNode BuildStepNode(
             Properties = new Dictionary<string, string>(StringComparer.Ordinal)
             {
                 ["rootActorId"] = NormalizeToken(rootActorId),
+                ["commandId"] = NormalizeToken(commandId),
                 ["stepId"] = NormalizeToken(stepId),
                 ["stepType"] = stepType ?? "",
                 ["targetRole"] = targetRole ?? "",
@@ -323,11 +326,12 @@ private static string BuildRunNodeId(string rootActorId, string commandId)
         return $"run:{normalizedRootActorId}:{normalizedCommandId}";
     }
 
-    private static string BuildStepNodeId(string rootActorId, string stepId)
+    private static string BuildStepNodeId(string rootActorId, string commandId, string stepId)
     {
         var normalizedRootActorId = NormalizeToken(rootActorId);
+        var normalizedCommandId = NormalizeToken(commandId);
         var normalizedStepId = NormalizeToken(stepId);
-        return $"step:{normalizedRootActorId}:{normalizedStepId}";
+        return $"step:{normalizedRootActorId}:{normalizedCommandId}:{normalizedStepId}";
     }
 
     private static string BuildEdgeId(string relationType, string fromNodeId, string toNodeId)
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index a1226c2c9..a12282abf 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -18,13 +18,13 @@
   - `WorkflowProjectionSinkFailurePolicy`（sink 异常策略）
   - `WorkflowProjectionReadModelUpdater`（read model 元信息更新）
   - `WorkflowProjectionQueryReader`（query 映射读取）
-  - `WorkflowReadModelSelectionPlanner`（统一 read model/relation provider 归一化、mode 校验与 capability 选择参数生成）
+  - Store 选择统一由 `IProjectionStoreSelectionPlanner` 执行（Workflow 仅提供 relation 需求，不持有 provider/index kind 决策）
 - 领域上下文：`IWorkflowExecutionProjectionContextFactory`、`WorkflowExecutionProjectionContext`
 - 实时输出契约：`WorkflowRunEvent`、`IWorkflowRunEventSink`、`WorkflowRunEventChannel`（定义于 `Aevatar.Workflow.Application.Abstractions`）
 - 领域投影实现：reducers、projectors、read model（不包含 Provider Store 实现）
 - 领域 DI 组合：`AddWorkflowExecutionProjectionCQRS(...)`
 - Provider 能力校验：启动期由 `WorkflowReadModelStartupValidationHostedService` 预校验，运行时选择阶段继续按 `ProjectionReadModelCapabilityValidator` 校验
-- ReadModel 选择规则统一：DI store 解析与 Startup validation 均复用 `WorkflowReadModelSelectionPlanner`，避免双处规则漂移
+- ReadModel 选择规则统一：DI store 解析与 Startup validation 均复用 `IProjectionStoreSelectionPlanner + IProjectionStoreSelectionRuntimeOptions`，避免双处规则漂移
 
 本项目依赖：
 
@@ -83,21 +83,19 @@ FAQ：
 - 扩展 ReadModel Provider（推荐）：
   - 实现 `IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>`
   - 在 Host/Extensions 侧注册（例如 `Aevatar.Workflow.Extensions.Hosting.AddWorkflowProjectionReadModelProviders(...)`）
-  - 通过 `WorkflowExecutionProjection:ReadModelProvider` 或 `Projection:ReadModel:Provider` 选择 Provider
+  - 通过 `Projection:ReadModel:*` 配置选择 Provider（Workflow 层不再暴露 provider 选择字段）
 
 ## Provider 配置
 
-- `WorkflowExecutionProjection:ReadModelProvider`：`InMemory`（默认）/`Elasticsearch`/`Neo4j`
-- `WorkflowExecutionProjection:RelationProvider`：关系存储 provider；留空时回退到 `ReadModelProvider`
-- `WorkflowExecutionProjection:FailOnUnsupportedCapabilities`：能力不匹配时是否 fail-fast（默认 `true`）
+- Provider 选择统一配置入口：`Projection:ReadModel:*`（绑定到 `ProjectionReadModelRuntimeOptions`）
+- `Projection:ReadModel:Provider`：`InMemory`（默认）/`Elasticsearch`/`Neo4j`
+- `Projection:ReadModel:RelationProvider`：关系 provider；留空时回退到 `Provider`
+- `Projection:ReadModel:FailOnUnsupportedCapabilities`：能力不匹配时是否 fail-fast（默认 `true`）
+- `Projection:ReadModel:Mode`：读模型运行模式（`StateOnly` 会在选择阶段 fail-fast）
+- `Projection:ReadModel:Bindings:*`：ReadModel -> IndexKind 约束（键必须为 `ReadModel` 的 `Type.FullName`，例如 `Aevatar.Workflow.Projection.ReadModels.WorkflowExecutionReport: Document`）
 - `WorkflowExecutionProjection:ValidateReadModelProviderOnStartup`：是否在 Host 启动阶段预校验 Provider 选择与能力（默认 `true`）
 - `WorkflowExecutionProjection:ValidateRelationProviderOnStartup`：是否在 Host 启动阶段预校验 Relation Provider（默认 `true`）
-- `WorkflowExecutionProjection:ReadModelBindings`：ReadModel -> IndexKind 约束（键必须为 `ReadModel` 的 `Type.FullName`，例如 `Aevatar.Workflow.Projection.ReadModels.WorkflowExecutionReport: Document`）
-- 推荐统一配置入口：`Projection:ReadModel:*`（由 Infrastructure 映射到 Workflow 投影选项）
-- `Projection:ReadModel:Provider`：全局默认 Provider（当前由 `WorkflowCapabilityServiceCollectionExtensions` 覆盖到模块选项）
-- `Projection:ReadModel:RelationProvider`：全局默认 Relation Provider（覆盖到模块选项）
-- `Projection:ReadModel:FailOnUnsupportedCapabilities`：全局 fail-fast 策略
-- `Projection:ReadModel:Bindings:*`：全局 ReadModel -> IndexKind 约束
+- `Projection:Policies:DenyInMemoryRelationFactStore`：禁用 InMemory relation 作为事实源（生产建议开启）
 - `Projection:ReadModel:Providers:Elasticsearch:Endpoints`：Elasticsearch endpoint 列表
 - `Projection:ReadModel:Providers:Elasticsearch:IndexPrefix`：索引前缀
 - `Projection:ReadModel:Providers:Elasticsearch:RequestTimeoutMs`：请求超时
@@ -107,6 +105,9 @@ FAQ：
 - `Projection:ReadModel:Providers:Elasticsearch:MissingIndexBehavior`：索引缺失行为（`Throw` / `WarnAndReturnEmpty`，默认 `Throw`）
 - `Projection:ReadModel:Providers:Elasticsearch:MutateMaxRetryCount`：`MutateAsync` OCC 冲突重试次数（默认 `3`）
 - `Projection:ReadModel:Providers:Elasticsearch:Username/Password`：可选基础认证
+- 关系查询参数：
+  - `/actors/{actorId}/relations` 支持 `direction` 与 `relationTypes`
+  - `/actors/{actorId}/relation-subgraph` 支持 `direction` 与 `relationTypes`
 - 扩展 run 输出协议：
   - 保持 `WorkflowRunEvent` 不变，新增 presentation adapter 进行协议映射
   - 不改 Application 用例编排代码
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
index 4708d9c73..bd4f21ecc 100644
--- a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
@@ -32,6 +32,8 @@ public sealed class WorkflowExecutionReport
       IHasProjectionTimeline,
       IHasProjectionRoleReplies
 {
+    public string RootActorId { get; set; } = "";
+    public string CommandId { get; set; } = "";
     public string ReportVersion { get; set; } = "1.0";
     public WorkflowExecutionProjectionScope ProjectionScope { get; set; } = WorkflowExecutionProjectionScope.ActorShared;
     public WorkflowExecutionTopologySource TopologySource { get; set; } = WorkflowExecutionTopologySource.RuntimeSnapshot;
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index 2f62a1786..e2cf5b76c 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -7,6 +7,7 @@
 using Aevatar.Workflow.Projection.ReadModels;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
 
 namespace Aevatar.Workflow.Extensions.Hosting;
 
@@ -24,37 +25,86 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
 
         services.AddSingleton<WorkflowProjectionProviderRegistrationsMarker>();
 
-        var providerSelection = ResolveProviderSelection(configuration);
+        var runtimeOptions = ResolveRuntimeOptions(configuration);
+        var providerSelection = ResolveProviderSelection(runtimeOptions);
+        EnforceRelationProviderPolicy(configuration, providerSelection.RelationProvider);
+
+        services.Replace(ServiceDescriptor.Singleton(runtimeOptions));
+        services.Replace(ServiceDescriptor.Singleton<IProjectionStoreSelectionRuntimeOptions>(sp =>
+            sp.GetRequiredService<ProjectionReadModelRuntimeOptions>()));
+
         RegisterReadModelProvider(services, configuration, providerSelection.ReadModelProvider);
         RegisterRelationProvider(services, configuration, providerSelection.RelationProvider);
 
         return services;
     }
 
-    private static ProviderSelection ResolveProviderSelection(IConfiguration configuration)
+    private static ProjectionReadModelRuntimeOptions ResolveRuntimeOptions(IConfiguration configuration)
     {
-        var workflowReadModelProvider = configuration["WorkflowExecutionProjection:ReadModelProvider"];
-        var workflowRelationProvider = configuration["WorkflowExecutionProjection:RelationProvider"];
-        var globalReadModelProvider = configuration["Projection:ReadModel:Provider"];
-        var globalRelationProvider = configuration["Projection:ReadModel:RelationProvider"];
+        var options = new ProjectionReadModelRuntimeOptions();
+        configuration.GetSection("Projection:ReadModel").Bind(options);
+        return options;
+    }
 
+    private static ProviderSelection ResolveProviderSelection(ProjectionReadModelRuntimeOptions runtimeOptions)
+    {
         var readModelProvider = NormalizeOrDefaultProvider(
-            !string.IsNullOrWhiteSpace(globalReadModelProvider)
-                ? globalReadModelProvider
-                : workflowReadModelProvider,
+            runtimeOptions.Provider,
             ProjectionReadModelProviderNames.InMemory,
             "Projection:ReadModel:Provider");
 
         var relationProvider = NormalizeOrDefaultProvider(
-            !string.IsNullOrWhiteSpace(globalRelationProvider)
-                ? globalRelationProvider
-                : workflowRelationProvider,
+            runtimeOptions.RelationProvider,
             readModelProvider,
             "Projection:ReadModel:RelationProvider");
 
         return new ProviderSelection(readModelProvider, relationProvider);
     }
 
+    private static void EnforceRelationProviderPolicy(
+        IConfiguration configuration,
+        string relationProviderName)
+    {
+        var denyInMemoryRelationProvider = ParseBool(
+            configuration["Projection:Policies:DenyInMemoryRelationFactStore"]);
+        var environment = ResolveRuntimeEnvironment(configuration["Projection:Policies:Environment"]);
+        var production = IsProductionEnvironment(environment);
+
+        if ((denyInMemoryRelationProvider || production) &&
+            string.Equals(
+                relationProviderName,
+                ProjectionReadModelProviderNames.InMemory,
+                StringComparison.OrdinalIgnoreCase))
+        {
+            throw new InvalidOperationException(
+                "InMemory relation provider is not allowed by projection policy. " +
+                "Use a durable relation provider (for example Neo4j) for production/distributed deployments.");
+        }
+    }
+
+    private static string ResolveRuntimeEnvironment(string? configuredEnvironment)
+    {
+        if (!string.IsNullOrWhiteSpace(configuredEnvironment))
+            return configuredEnvironment.Trim();
+
+        var dotnetEnvironment = Environment.GetEnvironmentVariable("DOTNET_ENVIRONMENT");
+        if (!string.IsNullOrWhiteSpace(dotnetEnvironment))
+            return dotnetEnvironment.Trim();
+
+        var aspnetEnvironment = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
+        return aspnetEnvironment?.Trim() ?? "";
+    }
+
+    private static bool IsProductionEnvironment(string environment)
+    {
+        return string.Equals(environment, "Production", StringComparison.OrdinalIgnoreCase);
+    }
+
+    private static bool ParseBool(string? value)
+    {
+        return bool.TryParse(value, out var parsed) && parsed;
+    }
+
     private static string NormalizeOrDefaultProvider(
         string? configuredValue,
         string fallbackValue,
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs
new file mode 100644
index 000000000..ad5da3f5a
--- /dev/null
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs
@@ -0,0 +1,97 @@
+using Aevatar.CQRS.Projection.Runtime.Runtime;
+using FluentAssertions;
+
+namespace Aevatar.CQRS.Projection.Core.Tests;
+
+public sealed class ProjectionStoreSelectionPlannerTests
+{
+    private readonly ProjectionStoreSelectionPlanner _planner =
+        new(new ProjectionReadModelBindingResolver());
+
+    [Fact]
+    public void Build_WhenReadModelProviderIsEmpty_ShouldThrow()
+    {
+        var options = new FakeOptions
+        {
+            ReadModelProvider = " ",
+        };
+
+        Action act = () => _planner.Build(options, typeof(TestReadModel), new ProjectionReadModelRequirements());
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*read-model provider is required*");
+    }
+
+    [Fact]
+    public void Build_WhenRelationProviderMissing_ShouldFallbackToReadModelProvider()
+    {
+        var options = new FakeOptions
+        {
+            ReadModelProvider = ProjectionReadModelProviderNames.Neo4j,
+            RelationProvider = " ",
+        };
+
+        var plan = _planner.Build(options, typeof(TestReadModel), new ProjectionReadModelRequirements(
+            requiresRelations: true,
+            requiresRelationTraversal: true));
+
+        plan.ReadModelSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Neo4j);
+        plan.RelationSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Neo4j);
+    }
+
+    [Fact]
+    public void Build_ShouldMergeRelationRequirementsWithReadModelAliasAndSchemaRequirements()
+    {
+        var options = new FakeOptions
+        {
+            ReadModelProvider = ProjectionReadModelProviderNames.Neo4j,
+        };
+        options.ReadModelBindings[typeof(TestReadModel).FullName!] = ProjectionReadModelIndexKind.Graph.ToString();
+        var relationRequirements = new ProjectionReadModelRequirements(
+            requiresRelations: true,
+            requiresRelationTraversal: true,
+            requiresAliases: false,
+            requiresSchemaValidation: false);
+
+        var plan = _planner.Build(options, typeof(TestReadModel), relationRequirements);
+
+        plan.RelationRequirements.RequiresRelations.Should().BeTrue();
+        plan.RelationRequirements.RequiresRelationTraversal.Should().BeTrue();
+        plan.RelationRequirements.RequiresAliases.Should().BeFalse();
+        plan.RelationRequirements.RequiresSchemaValidation.Should().BeFalse();
+    }
+
+    [Fact]
+    public void Build_WhenStateOnlyModeConfigured_ShouldThrow()
+    {
+        var options = new FakeOptions
+        {
+            ReadModelProvider = ProjectionReadModelProviderNames.InMemory,
+            ReadModelMode = ProjectionReadModelMode.StateOnly,
+        };
+
+        Action act = () => _planner.Build(options, typeof(TestReadModel), new ProjectionReadModelRequirements());
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*does not support*StateOnly*");
+    }
+
+    private sealed class FakeOptions : IProjectionStoreSelectionRuntimeOptions
+    {
+        private readonly Dictionary<string, string> _bindings = new(StringComparer.OrdinalIgnoreCase);
+
+        public string ReadModelProvider { get; set; } = ProjectionReadModelProviderNames.InMemory;
+
+        public string RelationProvider { get; set; } = "";
+
+        public bool FailOnUnsupportedCapabilities { get; set; } = true;
+
+        public ProjectionReadModelMode ReadModelMode { get; set; } = ProjectionReadModelMode.CustomReadModel;
+
+        public Dictionary<string, string> ReadModelBindings => _bindings;
+
+        IReadOnlyDictionary<string, string> IProjectionStoreSelectionRuntimeOptions.ReadModelBindings => _bindings;
+    }
+
+    private sealed class TestReadModel;
+}
diff --git a/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs b/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
index 2c4a37ea7..f410cb85e 100644
--- a/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
+++ b/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
@@ -475,8 +475,10 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
     public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
         string actorId,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default)
     {
+        _ = options;
         _ = ct;
         if (!RelationsByActorId.TryGetValue(actorId, out var relations))
             relations = [];
@@ -488,10 +490,12 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default)
     {
         _ = depth;
         _ = take;
+        _ = options;
         _ = ct;
         if (!SubgraphByActorId.TryGetValue(actorId, out var subgraph))
         {
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
index 0f4196afa..6866aff5d 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
@@ -291,7 +291,7 @@ public async Task ListActorRelations_ShouldReturnRelationItems()
             },
         };
 
-        var result = await ChatQueryEndpoints.ListActorRelations("actor-1", queryService, 50, CancellationToken.None);
+        var result = await ChatQueryEndpoints.ListActorRelations("actor-1", queryService, 50, ct: CancellationToken.None);
         var (statusCode, body) = await ExecuteResultAsync(result);
         using var doc = JsonDocument.Parse(body);
 
@@ -300,6 +300,29 @@ public async Task ListActorRelations_ShouldReturnRelationItems()
         doc.RootElement[0].GetProperty("edgeId").GetString().Should().Be("edge-1");
     }
 
+    [Fact]
+    public async Task ListActorRelations_WhenDirectionAndRelationTypesProvided_ShouldForwardQueryOptions()
+    {
+        var queryService = new FakeQueryService
+        {
+            ActorQueryEnabledValue = true,
+        };
+
+        var result = await ChatQueryEndpoints.ListActorRelations(
+            "actor-1",
+            queryService,
+            50,
+            direction: "Outbound",
+            relationTypes: ["CHILD_OF", "OWNS"],
+            ct: CancellationToken.None);
+        var (statusCode, _) = await ExecuteResultAsync(result);
+
+        statusCode.Should().Be(StatusCodes.Status200OK);
+        queryService.LastRelationQueryOptions.Should().NotBeNull();
+        queryService.LastRelationQueryOptions!.Direction.Should().Be(WorkflowActorRelationDirection.Outbound);
+        queryService.LastRelationQueryOptions.RelationTypes.Should().BeEquivalentTo(["CHILD_OF", "OWNS"]);
+    }
+
     [Fact]
     public async Task GetActorRelationSubgraph_ShouldReturnSubgraph()
     {
@@ -338,7 +361,7 @@ public async Task GetActorRelationSubgraph_ShouldReturnSubgraph()
             },
         };
 
-        var result = await ChatQueryEndpoints.GetActorRelationSubgraph("actor-1", queryService, 2, 50, CancellationToken.None);
+        var result = await ChatQueryEndpoints.GetActorRelationSubgraph("actor-1", queryService, 2, 50, ct: CancellationToken.None);
         var (statusCode, body) = await ExecuteResultAsync(result);
         using var doc = JsonDocument.Parse(body);
 
@@ -414,6 +437,7 @@ private sealed class FakeQueryService :
         public Dictionary<string, IReadOnlyList<WorkflowActorTimelineItem>> TimelineByActorId { get; set; } = new(StringComparer.Ordinal);
         public Dictionary<string, IReadOnlyList<WorkflowActorRelationItem>> RelationsByActorId { get; set; } = new(StringComparer.Ordinal);
         public Dictionary<string, WorkflowActorRelationSubgraph> SubgraphByActorId { get; set; } = new(StringComparer.Ordinal);
+        public WorkflowActorRelationQueryOptions? LastRelationQueryOptions { get; private set; }
 
         public bool ActorQueryEnabled => ActorQueryEnabledValue;
 
@@ -439,8 +463,11 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(str
         public Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
             string actorId,
             int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
             CancellationToken ct = default)
         {
+            LastRelationQueryOptions = options;
+            _ = options;
             if (!RelationsByActorId.TryGetValue(actorId, out var items))
                 items = [];
 
@@ -451,10 +478,13 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             string actorId,
             int depth = 2,
             int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
             CancellationToken ct = default)
         {
+            LastRelationQueryOptions = options;
             _ = depth;
             _ = take;
+            _ = options;
             if (!SubgraphByActorId.TryGetValue(actorId, out var item))
             {
                 item = new WorkflowActorRelationSubgraph
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
index aa08858fd..df65fb628 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
@@ -189,8 +189,17 @@ private sealed class FakeQueryService : IWorkflowExecutionQueryApplicationServic
             return Task.FromResult<WorkflowActorSnapshot?>(Snapshot);
         }
         public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(string actorId, int take = 200, CancellationToken ct = default) => Task.FromResult<IReadOnlyList<WorkflowActorTimelineItem>>([]);
-        public Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(string actorId, int take = 200, CancellationToken ct = default) => Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>([]);
-        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(string actorId, int depth = 2, int take = 200, CancellationToken ct = default) =>
+        public Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
+            string actorId,
+            int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
+            CancellationToken ct = default) => Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>([]);
+        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+            string actorId,
+            int depth = 2,
+            int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
+            CancellationToken ct = default) =>
             Task.FromResult(new WorkflowActorRelationSubgraph
             {
                 RootNodeId = actorId,
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
index 91bd4236d..1941f161a 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
@@ -248,6 +248,7 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(str
         public Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
             string actorId,
             int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
             CancellationToken ct = default) =>
             Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>([]);
 
@@ -255,6 +256,7 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             string actorId,
             int depth = 2,
             int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
             CancellationToken ct = default) =>
             Task.FromResult(new WorkflowActorRelationSubgraph
             {
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index c2f607d02..11303b37a 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -18,6 +18,7 @@
 using Google.Protobuf;
 using Google.Protobuf.WellKnownTypes;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.Extensions.Hosting;
 
 namespace Aevatar.Workflow.Host.Api.Tests;
@@ -42,12 +43,13 @@ public async Task AddWorkflowExecutionProjectionCQRS_WhenStartupValidationFindsU
     {
         var services = new ServiceCollection();
         RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS(options =>
+        ConfigureStoreSelectionOptions(services, options =>
         {
-            options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory;
-            options.ReadModelBindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
+            options.Provider = ProjectionReadModelProviderNames.InMemory;
+            options.Bindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
             options.FailOnUnsupportedCapabilities = true;
         });
+        services.AddWorkflowExecutionProjectionCQRS();
 
         await using var provider = services.BuildServiceProvider();
         Func<Task> act = () => StartHostedServicesAsync(provider);
@@ -92,8 +94,9 @@ public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchConfiguredWithou
         var services = new ServiceCollection();
         RegisterInMemoryProvider(services);
         RegisterElasticsearchProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS(options =>
-            options.ReadModelProvider = ProjectionReadModelProviderNames.Elasticsearch);
+        ConfigureStoreSelectionOptions(services, options =>
+            options.Provider = ProjectionReadModelProviderNames.Elasticsearch);
+        services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
         var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
@@ -113,11 +116,12 @@ public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchReadModelWithInM
         var services = new ServiceCollection();
         RegisterInMemoryProvider(services);
         RegisterElasticsearchProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS(options =>
+        ConfigureStoreSelectionOptions(services, options =>
         {
-            options.ReadModelProvider = ProjectionReadModelProviderNames.Elasticsearch;
+            options.Provider = ProjectionReadModelProviderNames.Elasticsearch;
             options.RelationProvider = ProjectionReadModelProviderNames.InMemory;
         });
+        services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
         var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
@@ -133,8 +137,9 @@ public async Task AddWorkflowExecutionProjectionCQRS_WhenNeo4jConfigured_ShouldR
         var services = new ServiceCollection();
         RegisterInMemoryProvider(services);
         RegisterNeo4jProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS(options =>
-            options.ReadModelProvider = ProjectionReadModelProviderNames.Neo4j);
+        ConfigureStoreSelectionOptions(services, options =>
+            options.Provider = ProjectionReadModelProviderNames.Neo4j);
+        services.AddWorkflowExecutionProjectionCQRS();
 
         await using var provider = services.BuildServiceProvider();
         var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
@@ -152,8 +157,9 @@ public void AddWorkflowExecutionProjectionCQRS_WhenProviderUnsupported_ShouldThr
     {
         var services = new ServiceCollection();
         RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS(options =>
-            options.ReadModelProvider = "UnknownProvider");
+        ConfigureStoreSelectionOptions(services, options =>
+            options.Provider = "UnknownProvider");
+        services.AddWorkflowExecutionProjectionCQRS();
         using var provider = services.BuildServiceProvider();
 
         Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
@@ -167,12 +173,13 @@ public void AddWorkflowExecutionProjectionCQRS_WhenBindingRequiresUnsupportedCap
     {
         var services = new ServiceCollection();
         RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS(options =>
+        ConfigureStoreSelectionOptions(services, options =>
         {
-            options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory;
-            options.ReadModelBindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
+            options.Provider = ProjectionReadModelProviderNames.InMemory;
+            options.Bindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
             options.FailOnUnsupportedCapabilities = true;
         });
+        services.AddWorkflowExecutionProjectionCQRS();
         using var provider = services.BuildServiceProvider();
 
         Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
@@ -186,12 +193,13 @@ public void AddWorkflowExecutionProjectionCQRS_WhenFailFastDisabled_ShouldAllowU
     {
         var services = new ServiceCollection();
         RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS(options =>
+        ConfigureStoreSelectionOptions(services, options =>
         {
-            options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory;
-            options.ReadModelBindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
+            options.Provider = ProjectionReadModelProviderNames.InMemory;
+            options.Bindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
             options.FailOnUnsupportedCapabilities = false;
         });
+        services.AddWorkflowExecutionProjectionCQRS();
         using var provider = services.BuildServiceProvider();
 
         Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
@@ -204,11 +212,12 @@ public void AddWorkflowExecutionProjectionCQRS_WhenStateOnlyModeConfigured_Shoul
     {
         var services = new ServiceCollection();
         RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS(options =>
+        ConfigureStoreSelectionOptions(services, options =>
         {
-            options.ReadModelMode = ProjectionReadModelMode.StateOnly;
-            options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory;
+            options.Mode = ProjectionReadModelMode.StateOnly;
+            options.Provider = ProjectionReadModelProviderNames.InMemory;
         });
+        services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
         Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
@@ -303,10 +312,12 @@ public void AddWorkflowExecutionProjectionCQRS_MultipleCalls_ShouldUseLastProvid
         var services = new ServiceCollection();
         RegisterInMemoryProvider(services);
         RegisterElasticsearchProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS(options =>
-            options.ReadModelProvider = ProjectionReadModelProviderNames.InMemory);
-        services.AddWorkflowExecutionProjectionCQRS(options =>
-            options.ReadModelProvider = ProjectionReadModelProviderNames.Elasticsearch);
+        ConfigureStoreSelectionOptions(services, options =>
+            options.Provider = ProjectionReadModelProviderNames.InMemory);
+        services.AddWorkflowExecutionProjectionCQRS();
+        ConfigureStoreSelectionOptions(services, options =>
+            options.Provider = ProjectionReadModelProviderNames.Elasticsearch);
+        services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
         var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
@@ -461,6 +472,17 @@ private static void RegisterNeo4jProvider(IServiceCollection services)
             scope: WorkflowExecutionRelationConstants.Scope);
     }
 
+    private static void ConfigureStoreSelectionOptions(
+        IServiceCollection services,
+        Action<ProjectionReadModelRuntimeOptions> configure)
+    {
+        var options = new ProjectionReadModelRuntimeOptions();
+        configure(options);
+        services.Replace(ServiceDescriptor.Singleton(options));
+        services.Replace(ServiceDescriptor.Singleton<IProjectionStoreSelectionRuntimeOptions>(sp =>
+            sp.GetRequiredService<ProjectionReadModelRuntimeOptions>()));
+    }
+
     public sealed class CustomChatRequestReducer : WorkflowExecutionEventReducerBase<ChatRequestEvent>
     {
         protected override bool Reduce(
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
index 9cf739971..e75913469 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
@@ -791,15 +791,17 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
         public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
             string actorId,
             int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
             CancellationToken ct = default)
-            => _queryPort.GetActorRelationsAsync(actorId, take, ct);
+            => _queryPort.GetActorRelationsAsync(actorId, take, options, ct);
 
         public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             string actorId,
             int depth = 2,
             int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
             CancellationToken ct = default)
-            => _queryPort.GetActorRelationSubgraphAsync(actorId, depth, take, ct);
+            => _queryPort.GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
     }
 
     private sealed class ObservableWorkflowExecutionReadModelStore
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs
index 554942d1b..353c44825 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs
@@ -76,6 +76,8 @@ await projector.ProjectAsync(context, Wrap(new StepCompletedEvent
             string.Equals(x.RelationType, WorkflowExecutionRelationConstants.RelationContainsStep, StringComparison.Ordinal));
         var stepNode = subgraph.Nodes.Single(x =>
             string.Equals(x.NodeType, WorkflowExecutionRelationConstants.StepNodeType, StringComparison.Ordinal));
+        stepNode.NodeId.Should().Be("step:root:cmd-1:step-1");
+        stepNode.Properties["commandId"].Should().Be("cmd-1");
         stepNode.Properties["stepType"].Should().Be("llm_call");
         stepNode.Properties["targetRole"].Should().Be("assistant");
         stepNode.Properties["workerId"].Should().Be("assistant-1");
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index 3ac2f9280..6df50746e 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -117,9 +117,18 @@ public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_S
         var relationRegistrations = services
             .Where(x => x.ServiceType == typeof(IProjectionRelationStoreRegistration))
             .ToList();
+        var selectionOptionsRegistrations = services
+            .Where(x => x.ServiceType == typeof(IProjectionStoreSelectionRuntimeOptions))
+            .ToList();
 
         providerRegistrations.Should().HaveCount(1);
         relationRegistrations.Should().HaveCount(1);
+        selectionOptionsRegistrations.Should().HaveCount(1);
+
+        using var provider = services.BuildServiceProvider();
+        var selectionOptions = provider.GetRequiredService<IProjectionStoreSelectionRuntimeOptions>();
+        selectionOptions.ReadModelProvider.Should().Be(ProjectionReadModelProviderNames.Elasticsearch);
+        selectionOptions.RelationProvider.Should().Be(ProjectionReadModelProviderNames.InMemory);
     }
 
     [Fact]
@@ -138,4 +147,24 @@ public void AddWorkflowProjectionReadModelProviders_WhenProviderConfiguredUnknow
         act.Should().Throw<InvalidOperationException>()
             .WithMessage("*Unsupported projection provider*");
     }
+
+    [Fact]
+    public void AddWorkflowProjectionReadModelProviders_WhenPolicyDeniesInMemoryRelationFactStore_ShouldThrow()
+    {
+        var services = new ServiceCollection();
+        var configuration = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string, string?>
+            {
+                ["Projection:ReadModel:Provider"] = ProjectionReadModelProviderNames.Elasticsearch,
+                ["Projection:ReadModel:RelationProvider"] = ProjectionReadModelProviderNames.InMemory,
+                ["Projection:ReadModel:Providers:Elasticsearch:Endpoints:0"] = "http://localhost:9200",
+                ["Projection:Policies:DenyInMemoryRelationFactStore"] = "true",
+            })
+            .Build();
+
+        Action act = () => services.AddWorkflowProjectionReadModelProviders(configuration);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*InMemory relation provider is not allowed*");
+    }
 }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs
deleted file mode 100644
index c3b3445f8..000000000
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs
+++ /dev/null
@@ -1,103 +0,0 @@
-using Aevatar.CQRS.Projection.Abstractions;
-using Aevatar.CQRS.Projection.Runtime.Runtime;
-using Aevatar.Workflow.Projection.Configuration;
-using Aevatar.Workflow.Projection.Orchestration;
-using Aevatar.Workflow.Projection.ReadModels;
-using FluentAssertions;
-
-namespace Aevatar.Workflow.Host.Api.Tests;
-
-public sealed class WorkflowReadModelSelectionPlannerTests
-{
-    private readonly WorkflowReadModelSelectionPlanner _planner = new(new ProjectionReadModelBindingResolver());
-
-    [Fact]
-    public void Build_WhenProviderIsEmpty_ShouldThrow()
-    {
-        var options = new WorkflowExecutionProjectionOptions
-        {
-            ReadModelProvider = "  ",
-        };
-
-        Action act = () => _planner.Build(options);
-
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*ReadModelProvider is required*");
-    }
-
-    [Fact]
-    public void Build_ShouldTrimConfiguredProviderName()
-    {
-        var options = new WorkflowExecutionProjectionOptions
-        {
-            ReadModelProvider = "  Neo4j  ",
-        };
-
-        var plan = _planner.Build(options);
-
-        plan.ReadModelSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Neo4j);
-        plan.RelationSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Neo4j);
-    }
-
-    [Fact]
-    public void Build_ShouldResolveBindingsByReadModelFullName()
-    {
-        var options = new WorkflowExecutionProjectionOptions
-        {
-            ReadModelProvider = ProjectionReadModelProviderNames.InMemory,
-        };
-        options.ReadModelBindings[typeof(WorkflowExecutionReport).FullName!] =
-            ProjectionReadModelIndexKind.Document.ToString();
-
-        var plan = _planner.Build(options);
-
-        plan.ReadModelRequirements.RequiresIndexing.Should().BeTrue();
-        plan.ReadModelRequirements.RequiredIndexKinds.Should().ContainSingle()
-            .Which.Should().Be(ProjectionReadModelIndexKind.Document);
-    }
-
-    [Fact]
-    public void Build_WhenBindingUsesShortTypeName_ShouldThrow()
-    {
-        var options = new WorkflowExecutionProjectionOptions
-        {
-            ReadModelProvider = ProjectionReadModelProviderNames.InMemory,
-        };
-        options.ReadModelBindings[nameof(WorkflowExecutionReport)] =
-            ProjectionReadModelIndexKind.Document.ToString();
-
-        Action act = () => _planner.Build(options);
-
-        act.Should().Throw<ProjectionReadModelBindingException>()
-            .WithMessage("*must use full type name*");
-    }
-
-    [Fact]
-    public void Build_WhenRelationProviderConfigured_ShouldUseRelationProvider()
-    {
-        var options = new WorkflowExecutionProjectionOptions
-        {
-            ReadModelProvider = ProjectionReadModelProviderNames.Elasticsearch,
-            RelationProvider = "  InMemory  ",
-        };
-
-        var plan = _planner.Build(options);
-
-        plan.ReadModelSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Elasticsearch);
-        plan.RelationSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
-    }
-
-    [Fact]
-    public void Build_WhenStateOnlyModeConfigured_ShouldThrow()
-    {
-        var options = new WorkflowExecutionProjectionOptions
-        {
-            ReadModelMode = ProjectionReadModelMode.StateOnly,
-        };
-
-        Action act = () => _planner.Build(options);
-
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*does not support*StateOnly*");
-    }
-}

From cf03a23ddfb3b54bd8ac960e972eb97d659f6444 Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Tue, 24 Feb 2026 22:18:08 +0800
Subject: [PATCH 24/46] Refactor Projection Abstractions and Introduce
 Core/Stores Separation

- Split the existing `Aevatar.CQRS.Projection.Abstractions` into two distinct projects: `Aevatar.CQRS.Projection.Core.Abstractions` and `Aevatar.CQRS.Projection.Stores.Abstractions` to clarify responsibilities and reduce complexity.
- Updated project references across the solution to align with the new structure, ensuring all dependencies point to the correct abstractions.
- Enhanced documentation to reflect the architectural changes and provide guidance on the new project organization.
- Removed the legacy `Aevatar.CQRS.Projection.Abstractions` project, streamlining the codebase and improving maintainability.
---
 aevatar.cqrs.slnf                             |   3 +-
 aevatar.slnx                                  |   3 +-
 ...r.Demos.CaseProjection.Abstractions.csproj |   2 +-
 .../Aevatar.Demos.CaseProjection.csproj       |   1 +
 ...ions-full-refactor-blueprint-2026-02-24.md | 102 ++++++++++++++++++
 ...review-remediation-blueprint-2026-02-24.md |  10 +-
 ...odel-graph-relations-refactor-blueprint.md |  16 +--
 .../Aevatar.AI.Projection.csproj              |   2 +-
 ...ateProjectionReadModelStoreRegistration.cs |  33 ------
 ...rojectionReadModelStoreProviderMetadata.cs |   6 --
 .../IProjectionReadModelStoreRegistration.cs  |  11 --
 ...ProjectionRelationStoreProviderRegistry.cs |   6 --
 .../IProjectionRelationStoreRegistration.cs   |  10 --
 .../README.md                                 |  26 -----
 .../Abstractions/Core}/IProjectionClock.cs    |   0
 .../Abstractions/Core}/IProjectionContext.cs  |   0
 .../Core}/IProjectionRuntimeOptions.cs        |   0
 .../IProjectionStreamSubscriptionContext.cs   |   0
 .../Pipeline}/IProjectionCoordinator.cs       |   0
 .../IProjectionDispatchFailureReporter.cs     |   0
 .../Pipeline}/IProjectionDispatcher.cs        |   0
 .../Pipeline}/IProjectionEventApplier.cs      |   0
 .../Pipeline}/IProjectionEventReducer.cs      |   0
 .../Pipeline}/IProjectionLifecycleService.cs  |   0
 .../IProjectionOwnershipCoordinator.cs        |   0
 .../Pipeline}/IProjectionProjector.cs         |   0
 .../IProjectionSubscriptionRegistry.cs        |   0
 .../IProjectionPortActivationService.cs       |   0
 .../IProjectionPortLiveSinkForwarder.cs       |   0
 .../Ports}/IProjectionPortReleaseService.cs   |   0
 .../IProjectionPortSinkSubscriptionManager.cs |   0
 .../Streaming}/IActorStreamSubscriptionHub.cs |   0
 .../IActorStreamSubscriptionLease.cs          |   0
 .../IProjectionSessionEventCodec.cs           |   0
 .../Streaming}/IProjectionSessionEventHub.cs  |   0
 ....CQRS.Projection.Core.Abstractions.csproj} |   2 +-
 .../GlobalUsings.cs                           |   0
 .../README.md                                 |  16 +++
 .../Aevatar.CQRS.Projection.Core.csproj       |   2 +-
 src/Aevatar.CQRS.Projection.Core/README.md    |   2 +-
 ....Projection.Providers.Elasticsearch.csproj |   2 +-
 .../ServiceCollectionExtensions.cs            |   8 +-
 .../README.md                                 |   2 +-
 .../ElasticsearchProjectionReadModelStore.cs  |   2 +-
 .../ElasticsearchProjectionRelationStore.cs   |   2 +-
 ....CQRS.Projection.Providers.InMemory.csproj |   3 +-
 .../ServiceCollectionExtensions.cs            |   8 +-
 .../InMemoryProjectionReadModelStore.cs       |   2 +-
 .../Stores/InMemoryProjectionRelationStore.cs |   2 +-
 ...tar.CQRS.Projection.Providers.Neo4j.csproj |   2 +-
 .../ServiceCollectionExtensions.cs            |   8 +-
 .../README.md                                 |   2 +-
 .../Stores/Neo4jProjectionReadModelStore.cs   |   2 +-
 .../Stores/Neo4jProjectionRelationStore.cs    |   2 +-
 .../Aevatar.CQRS.Projection.Runtime.csproj    |   2 +-
 .../ProjectionReadModelProviderRegistry.cs    |   4 +-
 .../ProjectionReadModelProviderSelector.cs    |   4 +-
 ...ProjectionRelationStoreProviderRegistry.cs |   4 +-
 ...ProjectionRelationStoreProviderSelector.cs |  57 ++--------
 .../ProjectionStoreStartupValidator.cs        |   4 +-
 ...Aevatar.CQRS.Projection.StateMirror.csproj |   3 -
 .../GlobalUsings.cs                           |   1 -
 .../DelegateProjectionStoreRegistration.cs}   |  11 +-
 .../Core/IProjectionStoreProviderMetadata.cs} |   2 +-
 .../Core/IProjectionStoreRegistration.cs      |  13 +++
 .../IProjectionReadModelBindingResolver.cs    |   0
 ...IProjectionReadModelCapabilityValidator.cs |   0
 .../IProjectionReadModelProviderRegistry.cs   |   2 +-
 .../IProjectionReadModelProviderSelector.cs   |   4 +-
 .../ReadModels}/IProjectionReadModelStore.cs  |   0
 .../IProjectionReadModelStoreFactory.cs       |   0
 .../ProjectionReadModelBindingException.cs    |   0
 ...nReadModelCapabilityValidationException.cs |   0
 .../ProjectionReadModelCapabilityValidator.cs |   0
 .../ProjectionReadModelIndexKind.cs           |   0
 .../ReadModels}/ProjectionReadModelMode.cs    |   0
 ...ProjectionReadModelProviderCapabilities.cs |   0
 .../ProjectionReadModelProviderNames.cs       |   0
 .../ProjectionReadModelRequirements.cs        |   0
 .../ProjectionReadModelRuntimeOptions.cs      |   0
 ...rojectionReadModelStoreSelectionOptions.cs |   0
 .../ProjectionReadModelStoreSelector.cs       |  23 ++++
 .../Relations}/IProjectionRelationStore.cs    |   0
 .../IProjectionRelationStoreFactory.cs        |   0
 ...ProjectionRelationStoreProviderRegistry.cs |   6 ++
 ...ProjectionRelationStoreProviderSelector.cs |   4 +-
 .../Relations}/ProjectionRelationDirection.cs |   0
 .../Relations}/ProjectionRelationEdge.cs      |   0
 .../Relations}/ProjectionRelationNode.cs      |   0
 .../Relations}/ProjectionRelationQuery.cs     |   0
 .../Relations}/ProjectionRelationSubgraph.cs  |   0
 .../IProjectionStoreSelectionPlanner.cs       |   0
 ...IProjectionStoreSelectionRuntimeOptions.cs |   0
 .../IProjectionStoreStartupValidator.cs       |   4 +-
 .../ProjectionProviderSelectionException.cs   |   0
 .../ProjectionStoreSelectionPlan.cs           |   0
 .../Selection/ProjectionStoreSelector.cs}     |  47 ++++----
 ...CQRS.Projection.Stores.Abstractions.csproj |   9 ++
 .../README.md                                 |  26 +++++
 ...r.Workflow.Presentation.AGUIAdapter.csproj |   2 +-
 .../Aevatar.Workflow.Projection.csproj        |   3 +-
 .../Aevatar.Workflow.Projection/README.md     |   5 +-
 .../Aevatar.CQRS.Projection.Core.Tests.csproj |   3 +-
 .../ProjectionReadModelRuntimeTests.cs        |   8 +-
 .../ProjectionReadModelStoreSelectorTests.cs  |   4 +-
 .../Aevatar.Workflow.Host.Api.Tests.csproj    |   3 +-
 ...lowExecutionProjectionRegistrationTests.cs |   6 +-
 .../WorkflowHostingExtensionsCoverageTests.cs |  12 +--
 108 files changed, 329 insertions(+), 247 deletions(-)
 create mode 100644 docs/architecture/projection-abstractions-full-refactor-blueprint-2026-02-24.md
 delete mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionReadModelStoreRegistration.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreProviderMetadata.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreRegistration.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderRegistry.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreRegistration.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Abstractions/README.md
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core}/IProjectionClock.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core}/IProjectionContext.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core}/IProjectionRuntimeOptions.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core}/IProjectionStreamSubscriptionContext.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline}/IProjectionCoordinator.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline}/IProjectionDispatchFailureReporter.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline}/IProjectionDispatcher.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline}/IProjectionEventApplier.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline}/IProjectionEventReducer.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline}/IProjectionLifecycleService.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline}/IProjectionOwnershipCoordinator.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline}/IProjectionProjector.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline}/IProjectionSubscriptionRegistry.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports}/IProjectionPortActivationService.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports}/IProjectionPortLiveSinkForwarder.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports}/IProjectionPortReleaseService.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports}/IProjectionPortSinkSubscriptionManager.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming}/IActorStreamSubscriptionHub.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming}/IActorStreamSubscriptionLease.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming}/IProjectionSessionEventCodec.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming}/IProjectionSessionEventHub.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Aevatar.CQRS.Projection.Abstractions.csproj => Aevatar.CQRS.Projection.Core.Abstractions/Aevatar.CQRS.Projection.Core.Abstractions.csproj} (84%)
 rename src/{Aevatar.CQRS.Projection.Abstractions => Aevatar.CQRS.Projection.Core.Abstractions}/GlobalUsings.cs (100%)
 create mode 100644 src/Aevatar.CQRS.Projection.Core.Abstractions/README.md
 delete mode 100644 src/Aevatar.CQRS.Projection.StateMirror/GlobalUsings.cs
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionRelationStoreRegistration.cs => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs} (66%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderMetadata.cs => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs} (68%)
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/IProjectionReadModelBindingResolver.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/IProjectionReadModelCapabilityValidator.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/IProjectionReadModelProviderRegistry.cs (58%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/IProjectionReadModelProviderSelector.cs (54%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/IProjectionReadModelStore.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/IProjectionReadModelStoreFactory.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/ProjectionReadModelBindingException.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/ProjectionReadModelCapabilityValidationException.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/ProjectionReadModelCapabilityValidator.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/ProjectionReadModelIndexKind.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/ProjectionReadModelMode.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/ProjectionReadModelProviderCapabilities.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/ProjectionReadModelProviderNames.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/ProjectionReadModelRequirements.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/ProjectionReadModelRuntimeOptions.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels}/ProjectionReadModelStoreSelectionOptions.cs (100%)
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations}/IProjectionRelationStore.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations}/IProjectionRelationStoreFactory.cs (100%)
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations}/IProjectionRelationStoreProviderSelector.cs (59%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations}/ProjectionRelationDirection.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations}/ProjectionRelationEdge.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations}/ProjectionRelationNode.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations}/ProjectionRelationQuery.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations}/ProjectionRelationSubgraph.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection}/IProjectionStoreSelectionPlanner.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection}/IProjectionStoreSelectionRuntimeOptions.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection}/IProjectionStoreStartupValidator.cs (69%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection}/ProjectionProviderSelectionException.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection}/ProjectionStoreSelectionPlan.cs (100%)
 rename src/{Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs => Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs} (61%)
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Aevatar.CQRS.Projection.Stores.Abstractions.csproj
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md

diff --git a/aevatar.cqrs.slnf b/aevatar.cqrs.slnf
index 5d51f65c0..5615d906c 100644
--- a/aevatar.cqrs.slnf
+++ b/aevatar.cqrs.slnf
@@ -4,7 +4,8 @@
     "projects": [
       "src\\Aevatar.CQRS.Core.Abstractions\\Aevatar.CQRS.Core.Abstractions.csproj",
       "src\\Aevatar.CQRS.Core\\Aevatar.CQRS.Core.csproj",
-      "src\\Aevatar.CQRS.Projection.Abstractions\\Aevatar.CQRS.Projection.Abstractions.csproj",
+      "src\\Aevatar.CQRS.Projection.Core.Abstractions\\Aevatar.CQRS.Projection.Core.Abstractions.csproj",
+      "src\\Aevatar.CQRS.Projection.Stores.Abstractions\\Aevatar.CQRS.Projection.Stores.Abstractions.csproj",
       "src\\Aevatar.CQRS.Projection.Core\\Aevatar.CQRS.Projection.Core.csproj",
       "src\\Aevatar.Foundation.Projection\\Aevatar.Foundation.Projection.csproj",
       "test\\Aevatar.CQRS.Core.Tests\\Aevatar.CQRS.Core.Tests.csproj",
diff --git a/aevatar.slnx b/aevatar.slnx
index 6c1479a87..f89055595 100644
--- a/aevatar.slnx
+++ b/aevatar.slnx
@@ -37,7 +37,8 @@
     <Project Path="src\Aevatar.CQRS.Core.Abstractions\Aevatar.CQRS.Core.Abstractions.csproj" />
     <Project Path="src\Aevatar.CQRS.Core\Aevatar.CQRS.Core.csproj" />
     <Project Path="src\Aevatar.Configuration\Aevatar.Configuration.csproj" />
-    <Project Path="src\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <Project Path="src\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
+    <Project Path="src\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
diff --git a/demos/Aevatar.Demos.CaseProjection.Abstractions/Aevatar.Demos.CaseProjection.Abstractions.csproj b/demos/Aevatar.Demos.CaseProjection.Abstractions/Aevatar.Demos.CaseProjection.Abstractions.csproj
index e4e2a2d44..2d83ec38d 100644
--- a/demos/Aevatar.Demos.CaseProjection.Abstractions/Aevatar.Demos.CaseProjection.Abstractions.csproj
+++ b/demos/Aevatar.Demos.CaseProjection.Abstractions/Aevatar.Demos.CaseProjection.Abstractions.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/demos/Aevatar.Demos.CaseProjection/Aevatar.Demos.CaseProjection.csproj b/demos/Aevatar.Demos.CaseProjection/Aevatar.Demos.CaseProjection.csproj
index 5391706de..c9b34160d 100644
--- a/demos/Aevatar.Demos.CaseProjection/Aevatar.Demos.CaseProjection.csproj
+++ b/demos/Aevatar.Demos.CaseProjection/Aevatar.Demos.CaseProjection.csproj
@@ -9,6 +9,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.Demos.CaseProjection.Abstractions\Aevatar.Demos.CaseProjection.Abstractions.csproj" />
   </ItemGroup>
 
diff --git a/docs/architecture/projection-abstractions-full-refactor-blueprint-2026-02-24.md b/docs/architecture/projection-abstractions-full-refactor-blueprint-2026-02-24.md
new file mode 100644
index 000000000..bbfa5d6a9
--- /dev/null
+++ b/docs/architecture/projection-abstractions-full-refactor-blueprint-2026-02-24.md
@@ -0,0 +1,102 @@
+# Projection Abstractions 全量重构蓝图（2026-02-24）
+
+## 1. 文档信息
+- 状态：Implemented（Breaking）
+- 兼容性策略：不保留兼容层，旧单体抽象项目直接删除
+- 范围：`Projection.Abstractions` 体系及所有直接依赖方（Core/Runtime/Providers/Workflow/AI/Tests）
+- 决策：将抽象层拆分为两个项目：`Aevatar.CQRS.Projection.Core.Abstractions` 与 `Aevatar.CQRS.Projection.Stores.Abstractions`
+
+## 2. 重构目标
+1. 把“投影管线抽象”与“存储/能力选择抽象”强制分离。
+2. 消除单体抽象项目中职责混合导致的理解和演进成本。
+3. 在无兼容负担下，形成清晰依赖方向：业务可按能力按需依赖。
+4. 保持统一语义命名空间 `Aevatar.CQRS.Projection.Abstractions`，降低调用层改动噪声。
+
+## 3. 目标架构
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    A["Aevatar.CQRS.Projection.Core.Abstractions"] --> A1["Core Context & Runtime"]
+    A --> A2["Pipeline Contracts"]
+    A --> A3["Ports Contracts"]
+    A --> A4["Streaming Contracts"]
+
+    B["Aevatar.CQRS.Projection.Stores.Abstractions"] --> B1["Store Registration & Metadata"]
+    B --> B2["ReadModel Store Contracts"]
+    B --> B3["Relation Store Contracts"]
+    B --> B4["Selection Planner & Startup Validator"]
+
+    C["Projection.Core"] --> A
+    D["Projection.Runtime"] --> B
+    E["Providers(InMemory/ES/Neo4j)"] --> B
+    F["Workflow.Projection"] --> A
+    F --> B
+    G["AI.Projection"] --> A
+```
+
+## 4. 项目拆分与职责
+
+### 4.1 `Aevatar.CQRS.Projection.Core.Abstractions`
+路径：`src/Aevatar.CQRS.Projection.Core.Abstractions/`
+
+包含：
+1. `Abstractions/Core`：`IProjectionContext`、`IProjectionRuntimeOptions`、`IProjectionClock`、`IProjectionStreamSubscriptionContext`
+2. `Abstractions/Pipeline`：`IProjectionCoordinator`、`IProjectionDispatcher`、`IProjectionProjector`、`IProjectionLifecycleService`、`IProjectionEventReducer`、`IProjectionEventApplier` 等
+3. `Abstractions/Ports`：activation/release/sink 端口协作契约
+4. `Abstractions/Streaming`：session event hub / actor stream subscription 契约
+
+边界：
+1. 不包含 provider 能力声明与选择逻辑。
+2. 不包含 readmodel/relation store 抽象。
+
+### 4.2 `Aevatar.CQRS.Projection.Stores.Abstractions`
+路径：`src/Aevatar.CQRS.Projection.Stores.Abstractions/`
+
+包含：
+1. `Abstractions/Core`：`IProjectionStoreRegistration<TStore>`、`DelegateProjectionStoreRegistration<TStore>`、`IProjectionStoreProviderMetadata`
+2. `Abstractions/ReadModels`：store/provider 能力、requirements、runtime options、binding、selector
+3. `Abstractions/Relations`：relation store/provider 与图查询模型
+4. `Abstractions/Selection`：selection planner、selection runtime options、startup validator、provider selection exception
+
+边界：
+1. 不包含投影生命周期/调度/订阅主链路抽象。
+2. 不包含业务模型与 provider 具体实现。
+
+## 5. 依赖矩阵（重构后）
+1. `Projection.Core` -> `Aevatar.CQRS.Projection.Core.Abstractions`
+2. `Projection.Runtime` -> `Aevatar.CQRS.Projection.Stores.Abstractions`
+3. `Projection.Providers.*` -> `Aevatar.CQRS.Projection.Stores.Abstractions`
+4. `Workflow.Projection` -> `Aevatar.CQRS.Projection.Core.Abstractions` + `Aevatar.CQRS.Projection.Stores.Abstractions`
+5. `Workflow.Presentation.AGUIAdapter` -> `Aevatar.CQRS.Projection.Core.Abstractions`
+6. `AI.Projection` -> `Aevatar.CQRS.Projection.Core.Abstractions`
+7. `Projection.StateMirror` -> 不再依赖 Projection Abstractions
+
+## 6. Breaking 变更清单
+1. 删除旧项目：`src/Aevatar.CQRS.Projection.Abstractions/Aevatar.CQRS.Projection.Abstractions.csproj`
+2. 新增项目：
+- `src/Aevatar.CQRS.Projection.Core.Abstractions/Aevatar.CQRS.Projection.Core.Abstractions.csproj`
+- `src/Aevatar.CQRS.Projection.Stores.Abstractions/Aevatar.CQRS.Projection.Stores.Abstractions.csproj`
+3. 解决方案与子解决方案改为引用新项目（`aevatar.slnx`、`aevatar.cqrs.slnf`）
+4. 所有依赖方 `ProjectReference` 全量切换到新拆分项目
+
+## 7. 选择链路治理（重构后）
+1. 业务仅声明需求：`ProjectionReadModelRequirements`
+2. Runtime 统一规划：`IProjectionStoreSelectionPlanner`
+3. Provider 统一选择：`ProjectionStoreSelector`
+4. 启动期统一 fail-fast：`IProjectionStoreStartupValidator`
+
+约束：
+1. Workflow 业务层不再承载 provider 选择规则，只消费组合层注入结果。
+2. Provider capabilities 声明必须与真实实现一致，不允许“声明支持但未实现”。
+
+## 8. 验证标准
+1. `dotnet build aevatar.slnx --nologo` 通过
+2. `dotnet test aevatar.slnx --nologo` 或关键分片测试通过
+3. `bash tools/ci/architecture_guards.sh` 通过
+4. `bash tools/ci/test_stability_guards.sh` 通过
+
+## 9. 后续演进建议
+1. 增加架构门禁：禁止新增 `src/Aevatar.CQRS.Projection.Abstractions/*` 单体项目回流。
+2. 对 `Aevatar.CQRS.Projection.Core.Abstractions` 与 `Aevatar.CQRS.Projection.Stores.Abstractions` 做分片构建门禁，避免跨边界漂移。
+3. 新增抽象优先落在两个项目之一，禁止在 Workflow 层复制通用抽象。
diff --git a/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md b/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
index 3cd7701a9..ace5667be 100644
--- a/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
+++ b/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
@@ -18,11 +18,11 @@
 |---|---|---|---|
 | B1 | Blocking | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs:26` + `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:353` | Elasticsearch 声明 `supportsAliases=true`、`supportsSchemaValidation=true`，但无对应实现。 |
 | B2 | Blocking | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:76` + `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:174` | `MutateAsync` 读改写 + 普通 PUT，缺少 OCC，重放/重试/并发存在覆盖风险。 |
-| B3 | Blocking | `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs:26` + `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs:49` | 同一 ReadModel 同时注册多个 Provider，未显式指定时选择歧义。 |
+| B3 | Blocking | `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs:26` + `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs:49` | 同一 ReadModel 同时注册多个 Provider，未显式指定时选择歧义。 |
 | M1 | Major | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:105` + `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:127` | `AutoCreateIndex=false` 且索引缺失时被当成无数据，掩盖配置错误。 |
 | M2 | Major | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs:43` | 绑定解析 `Type.Name` 优先于 `FullName`，同名类型误绑定风险。 |
 | N1 | Minor | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:241` | `ListSortField` 为空时不排序，返回顺序不稳定。 |
-| N2 | Minor | `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs:24` | `RequiredIndexKinds` 使用 `Overlaps`（任一匹配），语义偏宽松。 |
+| N2 | Minor | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs:24` | `RequiredIndexKinds` 使用 `Overlaps`（任一匹配），语义偏宽松。 |
 
 ## 3. 目标架构决策（To-Be）
 
@@ -91,8 +91,8 @@
 
 目标文件：
 
-- `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs`
-- `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs`（如需引入匹配模式）
+- `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs`
+- `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs`（如需引入匹配模式）
 
 改造项：
 
@@ -139,7 +139,7 @@
 - `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
 - `src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`
 - `src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs`
-- `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs`
+- `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs`
 - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs`
 - `src/workflow/Aevatar.Workflow.Projection/README.md`
 
diff --git a/docs/architecture/readmodel-graph-relations-refactor-blueprint.md b/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
index 67fae2883..aa690c29d 100644
--- a/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
+++ b/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
@@ -71,17 +71,17 @@ flowchart LR
 
 ### 6.1 新增关系契约
 新增文件：
-1. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStore.cs`
-2. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationNode.cs`
-3. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationEdge.cs`
-4. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationQuery.cs`
-5. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationSubgraph.cs`
-6. `src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationDirection.cs`
+1. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs`
+2. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationNode.cs`
+3. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationEdge.cs`
+4. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationQuery.cs`
+5. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs`
+6. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationDirection.cs`
 
 ### 6.2 新增关系 Provider 选择抽象
 新增文件：
-1. `IProjectionRelationStoreRegistration`
-2. `DelegateProjectionRelationStoreRegistration`
+1. `IProjectionStoreRegistration<IProjectionRelationStore>`
+2. `DelegateProjectionStoreRegistration<IProjectionRelationStore>`
 3. `IProjectionRelationStoreProviderRegistry`
 4. `IProjectionRelationStoreProviderSelector`
 5. `IProjectionRelationStoreFactory`
diff --git a/src/Aevatar.AI.Projection/Aevatar.AI.Projection.csproj b/src/Aevatar.AI.Projection/Aevatar.AI.Projection.csproj
index 46317fc55..4a81957cf 100644
--- a/src/Aevatar.AI.Projection/Aevatar.AI.Projection.csproj
+++ b/src/Aevatar.AI.Projection/Aevatar.AI.Projection.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Aevatar.AI.Abstractions\Aevatar.AI.Abstractions.csproj" />
-    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.Foundation.Projection\Aevatar.Foundation.Projection.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionReadModelStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionReadModelStoreRegistration.cs
deleted file mode 100644
index f3d760bad..000000000
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionReadModelStoreRegistration.cs
+++ /dev/null
@@ -1,33 +0,0 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
-
-public sealed class DelegateProjectionReadModelStoreRegistration<TReadModel, TKey>
-    : IProjectionReadModelStoreRegistration<TReadModel, TKey>
-    where TReadModel : class
-{
-    private readonly Func<IServiceProvider, IProjectionReadModelStore<TReadModel, TKey>> _factory;
-
-    public DelegateProjectionReadModelStoreRegistration(
-        string providerName,
-        ProjectionReadModelProviderCapabilities capabilities,
-        Func<IServiceProvider, IProjectionReadModelStore<TReadModel, TKey>> factory)
-    {
-        if (string.IsNullOrWhiteSpace(providerName))
-            throw new ArgumentException("Provider name must not be empty.", nameof(providerName));
-        ArgumentNullException.ThrowIfNull(capabilities);
-        ArgumentNullException.ThrowIfNull(factory);
-
-        ProviderName = providerName.Trim();
-        Capabilities = capabilities;
-        _factory = factory;
-    }
-
-    public string ProviderName { get; }
-
-    public ProjectionReadModelProviderCapabilities Capabilities { get; }
-
-    public IProjectionReadModelStore<TReadModel, TKey> Create(IServiceProvider serviceProvider)
-    {
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-        return _factory(serviceProvider);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreProviderMetadata.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreProviderMetadata.cs
deleted file mode 100644
index 45561c08b..000000000
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreProviderMetadata.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
-
-public interface IProjectionReadModelStoreProviderMetadata
-{
-    ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
-}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreRegistration.cs
deleted file mode 100644
index 8902194c9..000000000
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreRegistration.cs
+++ /dev/null
@@ -1,11 +0,0 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
-
-public interface IProjectionReadModelStoreRegistration<TReadModel, TKey>
-    where TReadModel : class
-{
-    string ProviderName { get; }
-
-    ProjectionReadModelProviderCapabilities Capabilities { get; }
-
-    IProjectionReadModelStore<TReadModel, TKey> Create(IServiceProvider serviceProvider);
-}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderRegistry.cs
deleted file mode 100644
index 146fb30d3..000000000
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderRegistry.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
-
-public interface IProjectionRelationStoreProviderRegistry
-{
-    IReadOnlyList<IProjectionRelationStoreRegistration> GetRegistrations(IServiceProvider serviceProvider);
-}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreRegistration.cs
deleted file mode 100644
index f350069af..000000000
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreRegistration.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
-
-public interface IProjectionRelationStoreRegistration
-{
-    string ProviderName { get; }
-
-    ProjectionReadModelProviderCapabilities Capabilities { get; }
-
-    IProjectionRelationStore Create(IServiceProvider serviceProvider);
-}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Abstractions/README.md
deleted file mode 100644
index 8c3abc60c..000000000
--- a/src/Aevatar.CQRS.Projection.Abstractions/README.md
+++ /dev/null
@@ -1,26 +0,0 @@
-# Aevatar.CQRS.Projection.Abstractions
-
-`Aevatar.CQRS.Projection.Abstractions` 只包含 CQRS 投影通用抽象。
-
-## 包含内容
-
-- 生命周期与编排：`IProjectionLifecycleService<,>`、`IProjectionCoordinator<,>`、`IProjectionDispatcher<>`、`IProjectionSubscriptionRegistry<>`
-- 端口抽象：`IProjectionPortActivationService<>`、`IProjectionPortReleaseService<>`、`IProjectionPortSinkSubscriptionManager<,,>`、`IProjectionPortLiveSinkForwarder<,,>`
-- 扩展抽象：`IProjectionProjector<,>`、`IProjectionEventReducer<,>`
-- 失败回传：`IProjectionDispatchFailureReporter<>`
-- 读模型存储：`IProjectionReadModelStore<,>`
-- Provider 能力建模：`ProjectionReadModelProviderCapabilities`、`IProjectionReadModelStoreProviderMetadata`
-- 能力校验：`ProjectionReadModelRequirements`、`ProjectionReadModelCapabilityValidator`
-- Provider 注册与选择契约：`IProjectionReadModelStoreRegistration<,>`、`DelegateProjectionReadModelStoreRegistration<,>`
-- Provider Runtime 契约：`IProjectionReadModelProviderRegistry`、`IProjectionReadModelProviderSelector`、`IProjectionReadModelBindingResolver`、`IProjectionReadModelStoreFactory`
-- Provider 运行配置：`ProjectionReadModelRuntimeOptions`、`ProjectionReadModelMode`
-- 运行时策略：`IProjectionRuntimeOptions`、`IProjectionClock`
-- 流订阅复用：`IActorStreamSubscriptionHub<TMessage>`
-- 投影上下文：`IProjectionContext`
-
-## 约束
-
-1. 不放业务 read model、业务 context、业务 service。
-2. 不放 DI 装配、endpoint 或具体 store 实现。
-3. 任何子系统都应依赖这些泛型抽象，而不是再造别名接口层。
-4. `IProjectionEventReducer<,>` / `IProjectionEventApplier<,,>` 通过 `bool` 返回值表达是否发生读模型变更。
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionClock.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionClock.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionClock.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionClock.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionContext.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionContext.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionContext.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionContext.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionRuntimeOptions.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRuntimeOptions.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionRuntimeOptions.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStreamSubscriptionContext.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionStreamSubscriptionContext.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStreamSubscriptionContext.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionStreamSubscriptionContext.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionCoordinator.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionCoordinator.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionCoordinator.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionCoordinator.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionDispatchFailureReporter.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatchFailureReporter.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionDispatchFailureReporter.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatchFailureReporter.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionDispatcher.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatcher.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionDispatcher.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatcher.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionEventApplier.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventApplier.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionEventApplier.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventApplier.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionEventReducer.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventReducer.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionEventReducer.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventReducer.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionLifecycleService.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionLifecycleService.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionLifecycleService.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionLifecycleService.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionOwnershipCoordinator.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionOwnershipCoordinator.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionOwnershipCoordinator.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionOwnershipCoordinator.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionProjector.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionProjector.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionProjector.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionProjector.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionSubscriptionRegistry.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionSubscriptionRegistry.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionSubscriptionRegistry.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionSubscriptionRegistry.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortActivationService.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortActivationService.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortActivationService.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortActivationService.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortLiveSinkForwarder.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortLiveSinkForwarder.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortLiveSinkForwarder.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortLiveSinkForwarder.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortReleaseService.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortReleaseService.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortReleaseService.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortReleaseService.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortSinkSubscriptionManager.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortSinkSubscriptionManager.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionPortSinkSubscriptionManager.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortSinkSubscriptionManager.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IActorStreamSubscriptionHub.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionHub.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IActorStreamSubscriptionHub.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionHub.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IActorStreamSubscriptionLease.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionLease.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IActorStreamSubscriptionLease.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionLease.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionSessionEventCodec.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventCodec.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionSessionEventCodec.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventCodec.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionSessionEventHub.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventHub.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionSessionEventHub.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventHub.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Aevatar.CQRS.Projection.Abstractions.csproj b/src/Aevatar.CQRS.Projection.Core.Abstractions/Aevatar.CQRS.Projection.Core.Abstractions.csproj
similarity index 84%
rename from src/Aevatar.CQRS.Projection.Abstractions/Aevatar.CQRS.Projection.Abstractions.csproj
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/Aevatar.CQRS.Projection.Core.Abstractions.csproj
index d7ea37ea1..395670a6a 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Aevatar.CQRS.Projection.Abstractions.csproj
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Aevatar.CQRS.Projection.Core.Abstractions.csproj
@@ -3,7 +3,7 @@
     <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
-    <AssemblyName>Aevatar.CQRS.Projection.Abstractions</AssemblyName>
+    <AssemblyName>Aevatar.CQRS.Projection.Core.Abstractions</AssemblyName>
     <RootNamespace>Aevatar.CQRS.Projection.Abstractions</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/GlobalUsings.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/GlobalUsings.cs
rename to src/Aevatar.CQRS.Projection.Core.Abstractions/GlobalUsings.cs
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Core.Abstractions/README.md
new file mode 100644
index 000000000..212c8b873
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/README.md
@@ -0,0 +1,16 @@
+# Aevatar.CQRS.Projection.Core.Abstractions
+
+`Aevatar.CQRS.Projection.Core.Abstractions` 只包含投影运行时主链路的通用抽象，不包含任何 ReadModel/Relation provider 选择与存储能力。
+
+## 目录结构
+
+- `Abstractions/Core`：`IProjectionContext`、`IProjectionRuntimeOptions`、`IProjectionClock`、`IProjectionStreamSubscriptionContext`
+- `Abstractions/Pipeline`：投影编排主链路契约（`Coordinator/Dispatcher/Reducer/Projector/Lifecycle`）
+- `Abstractions/Ports`：投影端口协作接口（activation/release/sink 管理）
+- `Abstractions/Streaming`：会话事件与 actor stream 订阅抽象
+
+## 约束
+
+1. 不包含 provider 选择策略、capability 校验与 store factory。
+2. 不包含业务 read model、业务 context、DI 装配或具体存储实现。
+3. 仅定义稳定运行时协议，面向跨业务复用。
diff --git a/src/Aevatar.CQRS.Projection.Core/Aevatar.CQRS.Projection.Core.csproj b/src/Aevatar.CQRS.Projection.Core/Aevatar.CQRS.Projection.Core.csproj
index 7b3c69f28..6bf640ca4 100644
--- a/src/Aevatar.CQRS.Projection.Core/Aevatar.CQRS.Projection.Core.csproj
+++ b/src/Aevatar.CQRS.Projection.Core/Aevatar.CQRS.Projection.Core.csproj
@@ -7,7 +7,7 @@
     <RootNamespace>Aevatar.CQRS.Projection.Core</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.Foundation.Abstractions\Aevatar.Foundation.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.Foundation.Core\Aevatar.Foundation.Core.csproj" />
   </ItemGroup>
diff --git a/src/Aevatar.CQRS.Projection.Core/README.md b/src/Aevatar.CQRS.Projection.Core/README.md
index fa0b94a4f..f4d658e58 100644
--- a/src/Aevatar.CQRS.Projection.Core/README.md
+++ b/src/Aevatar.CQRS.Projection.Core/README.md
@@ -4,7 +4,7 @@
 
 ## 项目边界
 
-- `Aevatar.CQRS.Projection.Abstractions`
+- `Aevatar.CQRS.Projection.Core.Abstractions`
   - 仅定义通用契约：`IProjection*`、`IActorStreamSubscriptionHub<TMessage>`。
 - `Aevatar.CQRS.Projection.Core`
   - 通用运行时实现：
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
index 772146682..3d7dc4c00 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
@@ -7,7 +7,7 @@
     <RootNamespace>Aevatar.CQRS.Projection.Providers.Elasticsearch</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index 5fe6cc4bf..9f08bb157 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -20,8 +20,8 @@ public static IServiceCollection AddElasticsearchReadModelStoreRegistration<TRea
         ArgumentNullException.ThrowIfNull(indexScope);
         ArgumentNullException.ThrowIfNull(keySelector);
 
-        services.AddSingleton<IProjectionReadModelStoreRegistration<TReadModel, TKey>>(
-            new DelegateProjectionReadModelStoreRegistration<TReadModel, TKey>(
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>(
+            new DelegateProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>(
                 providerName,
                 new ProjectionReadModelProviderCapabilities(
                     providerName,
@@ -44,8 +44,8 @@ public static IServiceCollection AddElasticsearchRelationStoreRegistration(
         this IServiceCollection services,
         string providerName = ProjectionReadModelProviderNames.Elasticsearch)
     {
-        services.AddSingleton<IProjectionRelationStoreRegistration>(
-            new DelegateProjectionRelationStoreRegistration(
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionRelationStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionRelationStore>(
                 providerName,
                 new ProjectionReadModelProviderCapabilities(
                     providerName,
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
index aac8f9bc4..7da4d67ad 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
@@ -3,7 +3,7 @@
 通用 Elasticsearch Document ReadModel Provider。
 
 - 不依赖任何业务域 read model。
-- 通过 `IProjectionReadModelStoreRegistration<TReadModel, TKey>` 与上层模块解耦集成。
+- 通过 `IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>` 与上层模块解耦集成。
 - 能力声明：`Document` 索引（不声明 alias/schema validation 能力）。
 - 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
 - `MutateAsync` 基于 `seq_no/primary_term` 执行 OCC（冲突可重试，超限失败）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
index 94216dd28..0e9424d68 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
@@ -10,7 +10,7 @@ namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
 
 public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
     : IProjectionReadModelStore<TReadModel, TKey>,
-      IProjectionReadModelStoreProviderMetadata,
+      IProjectionStoreProviderMetadata,
       IDisposable
     where TReadModel : class
 {
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
index 6691d47f5..435e5e366 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
@@ -2,7 +2,7 @@ namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
 
 public sealed class ElasticsearchProjectionRelationStore
     : IProjectionRelationStore,
-      IProjectionRelationStoreProviderMetadata
+      IProjectionStoreProviderMetadata
 {
     public ElasticsearchProjectionRelationStore(
         string providerName = ProjectionReadModelProviderNames.Elasticsearch)
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj b/src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj
index c97263c86..bf038d668 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj
@@ -7,10 +7,11 @@
     <RootNamespace>Aevatar.CQRS.Projection.Providers.InMemory</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
   </ItemGroup>
 </Project>
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index 452cec1c7..f1bdabbf7 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -17,8 +17,8 @@ public static IServiceCollection AddInMemoryReadModelStoreRegistration<TReadMode
     {
         ArgumentNullException.ThrowIfNull(keySelector);
 
-        services.AddSingleton<IProjectionReadModelStoreRegistration<TReadModel, TKey>>(
-            new DelegateProjectionReadModelStoreRegistration<TReadModel, TKey>(
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>(
+            new DelegateProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>(
                 providerName,
                 new ProjectionReadModelProviderCapabilities(
                     providerName,
@@ -40,8 +40,8 @@ public static IServiceCollection AddInMemoryRelationStoreRegistration(
         this IServiceCollection services,
         string providerName = ProjectionReadModelProviderNames.InMemory)
     {
-        services.AddSingleton<IProjectionRelationStoreRegistration>(
-            new DelegateProjectionRelationStoreRegistration(
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionRelationStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionRelationStore>(
                 providerName,
                 new ProjectionReadModelProviderCapabilities(
                     providerName,
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
index cb7d26722..809b927de 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
@@ -6,7 +6,7 @@ namespace Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 
 public sealed class InMemoryProjectionReadModelStore<TReadModel, TKey>
     : IProjectionReadModelStore<TReadModel, TKey>,
-      IProjectionReadModelStoreProviderMetadata
+      IProjectionStoreProviderMetadata
     where TReadModel : class
 {
     private readonly object _gate = new();
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs
index a011b30e2..b19df3b36 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs
@@ -4,7 +4,7 @@ namespace Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 
 public sealed class InMemoryProjectionRelationStore
     : IProjectionRelationStore,
-      IProjectionRelationStoreProviderMetadata
+      IProjectionStoreProviderMetadata
 {
     private readonly object _gate = new();
     private readonly Dictionary<string, ProjectionRelationNode> _nodes = new(StringComparer.Ordinal);
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj
index 9dbda873a..b8fbdceef 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj
@@ -7,7 +7,7 @@
     <RootNamespace>Aevatar.CQRS.Projection.Providers.Neo4j</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index 5b026c871..193d1b32e 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -20,8 +20,8 @@ public static IServiceCollection AddNeo4jReadModelStoreRegistration<TReadModel,
         ArgumentException.ThrowIfNullOrWhiteSpace(scope);
         ArgumentNullException.ThrowIfNull(keySelector);
 
-        services.AddSingleton<IProjectionReadModelStoreRegistration<TReadModel, TKey>>(
-            new DelegateProjectionReadModelStoreRegistration<TReadModel, TKey>(
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>(
+            new DelegateProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>(
                 providerName,
                 new ProjectionReadModelProviderCapabilities(
                     providerName,
@@ -51,8 +51,8 @@ public static IServiceCollection AddNeo4jRelationStoreRegistration(
         ArgumentNullException.ThrowIfNull(optionsFactory);
         ArgumentException.ThrowIfNullOrWhiteSpace(scope);
 
-        services.AddSingleton<IProjectionRelationStoreRegistration>(
-            new DelegateProjectionRelationStoreRegistration(
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionRelationStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionRelationStore>(
                 providerName,
                 new ProjectionReadModelProviderCapabilities(
                     providerName,
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
index b5d96d5cd..19b0532aa 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
@@ -3,7 +3,7 @@
 通用 Neo4j Graph ReadModel Provider。
 
 - 不依赖任何业务域 read model。
-- 通过 `IProjectionReadModelStoreRegistration<TReadModel, TKey>` 与上层模块解耦集成。
+- 通过 `IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>` 与上层模块解耦集成。
 - 能力声明：`Graph` 索引、schema validation。
 - 基于官方 `Neo4j.Driver` 实现连接与会话管理。
 - 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
index d52d5264a..197501287 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
@@ -8,7 +8,7 @@ namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
 
 public sealed class Neo4jProjectionReadModelStore<TReadModel, TKey>
     : IProjectionReadModelStore<TReadModel, TKey>,
-      IProjectionReadModelStoreProviderMetadata,
+      IProjectionStoreProviderMetadata,
       IAsyncDisposable
     where TReadModel : class
 {
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionRelationStore.cs
index eea9e5a65..22712939e 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionRelationStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionRelationStore.cs
@@ -8,7 +8,7 @@ namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
 
 public sealed class Neo4jProjectionRelationStore
     : IProjectionRelationStore,
-      IProjectionRelationStoreProviderMetadata,
+      IProjectionStoreProviderMetadata,
       IAsyncDisposable
 {
     private readonly IDriver _driver;
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj b/src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj
index a60881234..c75aea117 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj
+++ b/src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj
@@ -7,7 +7,7 @@
     <RootNamespace>Aevatar.CQRS.Projection.Runtime</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs
index 909106d55..7784b8631 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs
@@ -4,13 +4,13 @@ namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
 public sealed class ProjectionReadModelProviderRegistry : IProjectionReadModelProviderRegistry
 {
-    public IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> GetRegistrations<TReadModel, TKey>(
+    public IReadOnlyList<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>> GetRegistrations<TReadModel, TKey>(
         IServiceProvider serviceProvider)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
         return serviceProvider
-            .GetServices<IProjectionReadModelStoreRegistration<TReadModel, TKey>>()
+            .GetServices<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>()
             .ToList();
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
index f8b96cd29..78db1b275 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
@@ -17,8 +17,8 @@ public ProjectionReadModelProviderSelector(
         _logger = logger ?? NullLogger<ProjectionReadModelProviderSelector>.Instance;
     }
 
-    public IProjectionReadModelStoreRegistration<TReadModel, TKey> Select<TReadModel, TKey>(
-        IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> registrations,
+    public IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>> Select<TReadModel, TKey>(
+        IReadOnlyList<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>> registrations,
         ProjectionReadModelStoreSelectionOptions selectionOptions,
         ProjectionReadModelRequirements requirements)
         where TReadModel : class
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderRegistry.cs
index c22b7eab2..06b0e7497 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderRegistry.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderRegistry.cs
@@ -4,11 +4,11 @@ namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
 public sealed class ProjectionRelationStoreProviderRegistry : IProjectionRelationStoreProviderRegistry
 {
-    public IReadOnlyList<IProjectionRelationStoreRegistration> GetRegistrations(IServiceProvider serviceProvider)
+    public IReadOnlyList<IProjectionStoreRegistration<IProjectionRelationStore>> GetRegistrations(IServiceProvider serviceProvider)
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
         return serviceProvider
-            .GetServices<IProjectionRelationStoreRegistration>()
+            .GetServices<IProjectionStoreRegistration<IProjectionRelationStore>>()
             .ToList();
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderSelector.cs
index ba8a5542c..e3012113e 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderSelector.cs
@@ -17,8 +17,8 @@ public ProjectionRelationStoreProviderSelector(
         _logger = logger ?? NullLogger<ProjectionRelationStoreProviderSelector>.Instance;
     }
 
-    public IProjectionRelationStoreRegistration Select(
-        IReadOnlyList<IProjectionRelationStoreRegistration> registrations,
+    public IProjectionStoreRegistration<IProjectionRelationStore> Select(
+        IReadOnlyList<IProjectionStoreRegistration<IProjectionRelationStore>> registrations,
         ProjectionReadModelStoreSelectionOptions selectionOptions,
         ProjectionReadModelRequirements requirements)
     {
@@ -26,50 +26,15 @@ public IProjectionRelationStoreRegistration Select(
         ArgumentNullException.ThrowIfNull(selectionOptions);
         ArgumentNullException.ThrowIfNull(requirements);
 
-        var requestedProviderName = selectionOptions.RequestedProviderName?.Trim() ?? "";
-        if (registrations.Count == 0)
-        {
-            throw new ProjectionProviderSelectionException(
-                typeof(ProjectionRelationNode),
-                requestedProviderName,
-                [],
-                "No relation store provider registrations were found.");
-        }
-
-        IProjectionRelationStoreRegistration selected;
-        if (requestedProviderName.Length == 0)
-        {
-            if (registrations.Count != 1)
-            {
-                throw new ProjectionProviderSelectionException(
-                    typeof(ProjectionRelationNode),
-                    requestedProviderName,
-                    registrations.Select(x => x.ProviderName).ToList(),
-                    "Multiple relation store providers are registered but no explicit provider was requested.");
-            }
-
-            selected = registrations[0];
-        }
-        else
-        {
-            selected = registrations.FirstOrDefault(x =>
-                    string.Equals(x.ProviderName, requestedProviderName, StringComparison.OrdinalIgnoreCase))
-                ?? throw new ProjectionProviderSelectionException(
-                    typeof(ProjectionRelationNode),
-                    requestedProviderName,
-                    registrations.Select(x => x.ProviderName).ToList(),
-                    "Requested relation store provider is not registered.");
-        }
-
-        var violations = _capabilityValidator.Validate(requirements, selected.Capabilities);
-        if (violations.Count > 0 && selectionOptions.FailOnUnsupportedCapabilities)
-        {
-            throw new ProjectionReadModelCapabilityValidationException(
-                typeof(ProjectionRelationNode),
-                requirements,
-                selected.Capabilities,
-                violations);
-        }
+        var selected = ProjectionStoreSelector.Select<IProjectionStoreRegistration<IProjectionRelationStore>>(
+            registrations,
+            selectionOptions,
+            requirements,
+            typeof(ProjectionRelationNode),
+            noRegistrationsReason: "No relation store provider registrations were found.",
+            multipleRegistrationsReason: "Multiple relation store providers are registered but no explicit provider was requested.",
+            providerNotRegisteredReason: "Requested relation store provider is not registered.",
+            _capabilityValidator);
 
         _logger.LogInformation(
             "Projection relation provider selected. provider={Provider} failOnUnsupportedCapabilities={FailOnUnsupportedCapabilities}",
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
index cc57725c5..eba8da2ca 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
@@ -19,7 +19,7 @@ public ProjectionStoreStartupValidator(
         _relationProviderSelector = relationProviderSelector;
     }
 
-    public IProjectionReadModelStoreRegistration<TReadModel, TKey> ValidateReadModelProvider<TReadModel, TKey>(
+    public IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>> ValidateReadModelProvider<TReadModel, TKey>(
         IServiceProvider serviceProvider,
         ProjectionReadModelStoreSelectionOptions selectionOptions,
         ProjectionReadModelRequirements requirements)
@@ -33,7 +33,7 @@ public IProjectionReadModelStoreRegistration<TReadModel, TKey> ValidateReadModel
         return _readModelProviderSelector.Select(registrations, selectionOptions, requirements);
     }
 
-    public IProjectionRelationStoreRegistration ValidateRelationProvider(
+    public IProjectionStoreRegistration<IProjectionRelationStore> ValidateRelationProvider(
         IServiceProvider serviceProvider,
         ProjectionReadModelStoreSelectionOptions selectionOptions,
         ProjectionReadModelRequirements requirements)
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj b/src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj
index aa8535575..535fe63aa 100644
--- a/src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj
+++ b/src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj
@@ -6,9 +6,6 @@
     <AssemblyName>Aevatar.CQRS.Projection.StateMirror</AssemblyName>
     <RootNamespace>Aevatar.CQRS.Projection.StateMirror</RootNamespace>
   </PropertyGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
-  </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.StateMirror/GlobalUsings.cs
deleted file mode 100644
index b07fa3dbd..000000000
--- a/src/Aevatar.CQRS.Projection.StateMirror/GlobalUsings.cs
+++ /dev/null
@@ -1 +0,0 @@
-global using Aevatar.CQRS.Projection.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionRelationStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
similarity index 66%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionRelationStoreRegistration.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
index 51c877116..1ac20a2f7 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/DelegateProjectionRelationStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
@@ -1,14 +1,13 @@
 namespace Aevatar.CQRS.Projection.Abstractions;
 
-public sealed class DelegateProjectionRelationStoreRegistration
-    : IProjectionRelationStoreRegistration
+public sealed class DelegateProjectionStoreRegistration<TStore> : IProjectionStoreRegistration<TStore>
 {
-    private readonly Func<IServiceProvider, IProjectionRelationStore> _factory;
+    private readonly Func<IServiceProvider, TStore> _factory;
 
-    public DelegateProjectionRelationStoreRegistration(
+    public DelegateProjectionStoreRegistration(
         string providerName,
         ProjectionReadModelProviderCapabilities capabilities,
-        Func<IServiceProvider, IProjectionRelationStore> factory)
+        Func<IServiceProvider, TStore> factory)
     {
         if (string.IsNullOrWhiteSpace(providerName))
             throw new ArgumentException("Provider name must not be empty.", nameof(providerName));
@@ -24,7 +23,7 @@ public DelegateProjectionRelationStoreRegistration(
 
     public ProjectionReadModelProviderCapabilities Capabilities { get; }
 
-    public IProjectionRelationStore Create(IServiceProvider serviceProvider)
+    public TStore Create(IServiceProvider serviceProvider)
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
         return _factory(serviceProvider);
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderMetadata.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs
similarity index 68%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderMetadata.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs
index c8fc3fcce..e78e4a136 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderMetadata.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Abstractions;
 
-public interface IProjectionRelationStoreProviderMetadata
+public interface IProjectionStoreProviderMetadata
 {
     ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
 }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
new file mode 100644
index 000000000..25dd5989c
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
@@ -0,0 +1,13 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionStoreRegistration
+{
+    string ProviderName { get; }
+
+    ProjectionReadModelProviderCapabilities Capabilities { get; }
+}
+
+public interface IProjectionStoreRegistration<out TStore> : IProjectionStoreRegistration
+{
+    TStore Create(IServiceProvider serviceProvider);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelBindingResolver.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelBindingResolver.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelCapabilityValidator.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelCapabilityValidator.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelCapabilityValidator.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderRegistry.cs
similarity index 58%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderRegistry.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderRegistry.cs
index a33e22da7..b225d9190 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderRegistry.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderRegistry.cs
@@ -2,7 +2,7 @@ namespace Aevatar.CQRS.Projection.Abstractions;
 
 public interface IProjectionReadModelProviderRegistry
 {
-    IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> GetRegistrations<TReadModel, TKey>(
+    IReadOnlyList<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>> GetRegistrations<TReadModel, TKey>(
         IServiceProvider serviceProvider)
         where TReadModel : class;
 }
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderSelector.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderSelector.cs
similarity index 54%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderSelector.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderSelector.cs
index 6bda674a9..290401c87 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderSelector.cs
@@ -2,8 +2,8 @@ namespace Aevatar.CQRS.Projection.Abstractions;
 
 public interface IProjectionReadModelProviderSelector
 {
-    IProjectionReadModelStoreRegistration<TReadModel, TKey> Select<TReadModel, TKey>(
-        IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> registrations,
+    IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>> Select<TReadModel, TKey>(
+        IReadOnlyList<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>> registrations,
         ProjectionReadModelStoreSelectionOptions selectionOptions,
         ProjectionReadModelRequirements requirements)
         where TReadModel : class;
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStore.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreFactory.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStoreFactory.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStoreFactory.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStoreFactory.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelBindingException.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelBindingException.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelBindingException.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelBindingException.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidationException.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidationException.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidationException.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidationException.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelIndexKind.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelIndexKind.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelIndexKind.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelIndexKind.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelMode.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelMode.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelMode.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelMode.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderCapabilities.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderCapabilities.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderNames.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderNames.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderNames.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderNames.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRuntimeOptions.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelectionOptions.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelectionOptions.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelectionOptions.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelectionOptions.cs
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs
new file mode 100644
index 000000000..f9d453420
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs
@@ -0,0 +1,23 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public static class ProjectionReadModelStoreSelector
+{
+    public static IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>> Select<TReadModel, TKey>(
+        IEnumerable<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>> registrations,
+        ProjectionReadModelStoreSelectionOptions selectionOptions,
+        ProjectionReadModelRequirements requirements,
+        IProjectionReadModelCapabilityValidator? capabilityValidator = null)
+        where TReadModel : class
+    {
+        return ProjectionStoreSelector.Select<
+            IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>(
+            registrations,
+            selectionOptions,
+            requirements,
+            typeof(TReadModel),
+            noRegistrationsReason: "No provider registrations were found.",
+            multipleRegistrationsReason: "Multiple providers are registered but no explicit provider was requested.",
+            providerNotRegisteredReason: "Requested provider is not registered.",
+            capabilityValidator);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStore.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreFactory.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreFactory.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreFactory.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreFactory.cs
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs
new file mode 100644
index 000000000..57c07d906
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs
@@ -0,0 +1,6 @@
+namespace Aevatar.CQRS.Projection.Abstractions;
+
+public interface IProjectionRelationStoreProviderRegistry
+{
+    IReadOnlyList<IProjectionStoreRegistration<IProjectionRelationStore>> GetRegistrations(IServiceProvider serviceProvider);
+}
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderSelector.cs
similarity index 59%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderSelector.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderSelector.cs
index a4a755fb0..8770d5b2a 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionRelationStoreProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderSelector.cs
@@ -2,8 +2,8 @@ namespace Aevatar.CQRS.Projection.Abstractions;
 
 public interface IProjectionRelationStoreProviderSelector
 {
-    IProjectionRelationStoreRegistration Select(
-        IReadOnlyList<IProjectionRelationStoreRegistration> registrations,
+    IProjectionStoreRegistration<IProjectionRelationStore> Select(
+        IReadOnlyList<IProjectionStoreRegistration<IProjectionRelationStore>> registrations,
         ProjectionReadModelStoreSelectionOptions selectionOptions,
         ProjectionReadModelRequirements requirements);
 }
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationDirection.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationDirection.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationDirection.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationDirection.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationEdge.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationEdge.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationEdge.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationEdge.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationNode.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationNode.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationNode.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationNode.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationQuery.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationQuery.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationQuery.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationQuery.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationSubgraph.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionRelationSubgraph.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionPlanner.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionPlanner.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreSelectionRuntimeOptions.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreStartupValidator.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
similarity index 69%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreStartupValidator.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
index d66074f97..8486ebcdf 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionStoreStartupValidator.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
@@ -2,13 +2,13 @@ namespace Aevatar.CQRS.Projection.Abstractions;
 
 public interface IProjectionStoreStartupValidator
 {
-    IProjectionReadModelStoreRegistration<TReadModel, TKey> ValidateReadModelProvider<TReadModel, TKey>(
+    IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>> ValidateReadModelProvider<TReadModel, TKey>(
         IServiceProvider serviceProvider,
         ProjectionReadModelStoreSelectionOptions selectionOptions,
         ProjectionReadModelRequirements requirements)
         where TReadModel : class;
 
-    IProjectionRelationStoreRegistration ValidateRelationProvider(
+    IProjectionStoreRegistration<IProjectionRelationStore> ValidateRelationProvider(
         IServiceProvider serviceProvider,
         ProjectionReadModelStoreSelectionOptions selectionOptions,
         ProjectionReadModelRequirements requirements);
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionProviderSelectionException.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionProviderSelectionException.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionStoreSelectionPlan.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
similarity index 100%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionStoreSelectionPlan.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
diff --git a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
similarity index 61%
rename from src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
index fc7eaed75..e40d52f71 100644
--- a/src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
@@ -1,38 +1,47 @@
 namespace Aevatar.CQRS.Projection.Abstractions;
 
-public static class ProjectionReadModelStoreSelector
+public static class ProjectionStoreSelector
 {
-    public static IProjectionReadModelStoreRegistration<TReadModel, TKey> Select<TReadModel, TKey>(
-        IEnumerable<IProjectionReadModelStoreRegistration<TReadModel, TKey>> registrations,
+    public static TRegistration Select<TRegistration>(
+        IEnumerable<TRegistration> registrations,
         ProjectionReadModelStoreSelectionOptions selectionOptions,
         ProjectionReadModelRequirements requirements,
+        Type logicalModelType,
+        string noRegistrationsReason,
+        string multipleRegistrationsReason,
+        string providerNotRegisteredReason,
         IProjectionReadModelCapabilityValidator? capabilityValidator = null)
-        where TReadModel : class
+        where TRegistration : IProjectionStoreRegistration
     {
         ArgumentNullException.ThrowIfNull(registrations);
         ArgumentNullException.ThrowIfNull(selectionOptions);
         ArgumentNullException.ThrowIfNull(requirements);
+        ArgumentNullException.ThrowIfNull(logicalModelType);
 
         var candidates = registrations.ToList();
         var requestedProviderName = selectionOptions.RequestedProviderName?.Trim() ?? "";
         if (candidates.Count == 0)
         {
             throw new ProjectionProviderSelectionException(
-                typeof(TReadModel),
+                logicalModelType,
                 requestedProviderName,
                 [],
-                "No provider registrations were found.");
+                noRegistrationsReason);
         }
 
-        var selected = ResolveRegistration(candidates, requestedProviderName);
-
+        var selected = ResolveRegistration<TRegistration>(
+            candidates,
+            requestedProviderName,
+            logicalModelType,
+            multipleRegistrationsReason,
+            providerNotRegisteredReason);
         var violations = capabilityValidator == null
             ? ProjectionReadModelCapabilityValidator.Validate(requirements, selected.Capabilities)
             : capabilityValidator.Validate(requirements, selected.Capabilities);
         if (violations.Count > 0 && selectionOptions.FailOnUnsupportedCapabilities)
         {
             throw new ProjectionReadModelCapabilityValidationException(
-                typeof(TReadModel),
+                logicalModelType,
                 requirements,
                 selected.Capabilities,
                 violations);
@@ -41,10 +50,13 @@ public static IProjectionReadModelStoreRegistration<TReadModel, TKey> Select<TRe
         return selected;
     }
 
-    private static IProjectionReadModelStoreRegistration<TReadModel, TKey> ResolveRegistration<TReadModel, TKey>(
-        IReadOnlyList<IProjectionReadModelStoreRegistration<TReadModel, TKey>> registrations,
-        string requestedProviderName)
-        where TReadModel : class
+    private static TRegistration ResolveRegistration<TRegistration>(
+        IReadOnlyList<TRegistration> registrations,
+        string requestedProviderName,
+        Type logicalModelType,
+        string multipleRegistrationsReason,
+        string providerNotRegisteredReason)
+        where TRegistration : IProjectionStoreRegistration
     {
         if (requestedProviderName.Length == 0)
         {
@@ -52,10 +64,10 @@ private static IProjectionReadModelStoreRegistration<TReadModel, TKey> ResolveRe
                 return registrations[0];
 
             throw new ProjectionProviderSelectionException(
-                typeof(TReadModel),
+                logicalModelType,
                 requestedProviderName,
                 registrations.Select(x => x.ProviderName).ToList(),
-                "Multiple providers are registered but no explicit provider was requested.");
+                multipleRegistrationsReason);
         }
 
         var matched = registrations
@@ -63,14 +75,13 @@ private static IProjectionReadModelStoreRegistration<TReadModel, TKey> ResolveRe
                 x.ProviderName,
                 requestedProviderName,
                 StringComparison.OrdinalIgnoreCase));
-
         if (matched != null)
             return matched;
 
         throw new ProjectionProviderSelectionException(
-            typeof(TReadModel),
+            logicalModelType,
             requestedProviderName,
             registrations.Select(x => x.ProviderName).ToList(),
-            "Requested provider is not registered.");
+            providerNotRegisteredReason);
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Aevatar.CQRS.Projection.Stores.Abstractions.csproj b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Aevatar.CQRS.Projection.Stores.Abstractions.csproj
new file mode 100644
index 000000000..93e4f3e64
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Aevatar.CQRS.Projection.Stores.Abstractions.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AssemblyName>Aevatar.CQRS.Projection.Stores.Abstractions</AssemblyName>
+    <RootNamespace>Aevatar.CQRS.Projection.Abstractions</RootNamespace>
+  </PropertyGroup>
+</Project>
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
new file mode 100644
index 000000000..094b93b09
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
@@ -0,0 +1,26 @@
+# Aevatar.CQRS.Projection.Stores.Abstractions
+
+`Aevatar.CQRS.Projection.Stores.Abstractions` 只包含投影存储、能力声明、provider 选择与启动校验相关抽象。
+
+## 目录结构
+
+- `Abstractions/Core`：provider 元数据与通用注册契约（`IProjectionStoreRegistration<TStore>`）
+- `Abstractions/ReadModels`：ReadModel store/provider 能力、选择与校验抽象
+- `Abstractions/Relations`：Relation store/provider 与图关系模型抽象
+- `Abstractions/Selection`：跨 readmodel/relation 的统一选择计划与启动校验契约
+
+## 包含内容
+
+- 读模型存储：`IProjectionReadModelStore<,>`
+- 关系存储：`IProjectionRelationStore`
+- Provider 能力建模：`ProjectionReadModelProviderCapabilities`、`IProjectionStoreProviderMetadata`
+- 能力校验：`ProjectionReadModelRequirements`、`ProjectionReadModelCapabilityValidator`
+- Provider 注册与选择：`IProjectionStoreRegistration<TStore>`、`DelegateProjectionStoreRegistration<TStore>`
+- Provider Runtime 契约：`IProjectionReadModelProviderRegistry`、`IProjectionReadModelProviderSelector`、`IProjectionReadModelStoreFactory`
+- 选择编排：`IProjectionStoreSelectionPlanner`、`IProjectionStoreStartupValidator`
+
+## 约束
+
+1. 不包含投影主链路编排接口（这些在 `Aevatar.CQRS.Projection.Core.Abstractions`）。
+2. 不包含业务模型、DI 装配与具体 provider 实现。
+3. capability 声明必须与 provider 真实实现一致，不允许“声明支持但未实现”。
diff --git a/src/workflow/Aevatar.Workflow.Presentation.AGUIAdapter/Aevatar.Workflow.Presentation.AGUIAdapter.csproj b/src/workflow/Aevatar.Workflow.Presentation.AGUIAdapter/Aevatar.Workflow.Presentation.AGUIAdapter.csproj
index eb2761291..327c87270 100644
--- a/src/workflow/Aevatar.Workflow.Presentation.AGUIAdapter/Aevatar.Workflow.Presentation.AGUIAdapter.csproj
+++ b/src/workflow/Aevatar.Workflow.Presentation.AGUIAdapter/Aevatar.Workflow.Presentation.AGUIAdapter.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\Aevatar.AI.Abstractions\Aevatar.AI.Abstractions.csproj" />
-    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.Workflow.Projection\Aevatar.Workflow.Projection.csproj" />
     <ProjectReference Include="..\..\Aevatar.Foundation.Abstractions\Aevatar.Foundation.Abstractions.csproj" />
     <ProjectReference Include="..\..\Aevatar.Presentation.AGUI\Aevatar.Presentation.AGUI.csproj" />
diff --git a/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj b/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
index 2042a1f12..52f16ff40 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
+++ b/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
@@ -8,7 +8,8 @@
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Aevatar.Workflow.Application.Abstractions\Aevatar.Workflow.Application.Abstractions.csproj" />
-    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
+    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
     <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
     <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
     <ProjectReference Include="..\..\Aevatar.Foundation.Projection\Aevatar.Foundation.Projection.csproj" />
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index a12282abf..1d9056a19 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -28,7 +28,8 @@
 
 本项目依赖：
 
-- `Aevatar.CQRS.Projection.Abstractions`（通用抽象）
+- `Aevatar.CQRS.Projection.Core.Abstractions`（投影管线/端口抽象）
+- `Aevatar.CQRS.Projection.Stores.Abstractions`（ReadModel/Relation/选择抽象）
 - `Aevatar.CQRS.Projection.Core`（通用生命周期/订阅/协调实现）
 - `Aevatar.Foundation.Projection`（最小 read model 基类与读侧能力接口）
 - `Aevatar.Workflow.Extensions.AIProjection`（可选扩展：组合 `Aevatar.AI.Projection` 的通用 reducer/applier）
@@ -81,7 +82,7 @@ FAQ：
   - 实现 `IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>`
   - 在 DI 中注册
 - 扩展 ReadModel Provider（推荐）：
-  - 实现 `IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>`
+  - 实现 `IProjectionStoreRegistration<IProjectionReadModelStore<WorkflowExecutionReport, string>>`
   - 在 Host/Extensions 侧注册（例如 `Aevatar.Workflow.Extensions.Hosting.AddWorkflowProjectionReadModelProviders(...)`）
   - 通过 `Projection:ReadModel:*` 配置选择 Provider（Workflow 层不再暴露 provider 选择字段）
 
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj b/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
index 3e769d0e1..541238305 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
@@ -10,7 +10,8 @@
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
-    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.StateMirror\Aevatar.CQRS.Projection.StateMirror.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
index 05ec9dc41..b9cadd4db 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
@@ -42,7 +42,7 @@ public void ProviderSelector_WhenFailFastDisabled_ShouldReturnRegistration()
     {
         var selector = new ProjectionReadModelProviderSelector(
             new ProjectionReadModelCapabilityValidatorService());
-        var registrations = new List<IProjectionReadModelStoreRegistration<TestReadModel, string>>
+        var registrations = new List<IProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>>>
         {
             CreateRegistration(
                 "InMemory",
@@ -69,7 +69,7 @@ public void ProviderSelector_WhenMultipleProvidersWithoutRequested_ShouldThrowSt
     {
         var selector = new ProjectionReadModelProviderSelector(
             new ProjectionReadModelCapabilityValidatorService());
-        var registrations = new List<IProjectionReadModelStoreRegistration<TestReadModel, string>>
+        var registrations = new List<IProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>>>
         {
             CreateRegistration("InMemory", supportsIndexing: false, indexKinds: []),
             CreateRegistration("Elasticsearch", supportsIndexing: true, indexKinds: [ProjectionReadModelIndexKind.Document]),
@@ -84,7 +84,7 @@ public void ProviderSelector_WhenMultipleProvidersWithoutRequested_ShouldThrowSt
             .Where(ex => ex.ReadModelType == typeof(TestReadModel));
     }
 
-    private static IProjectionReadModelStoreRegistration<TestReadModel, string> CreateRegistration(
+    private static IProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>> CreateRegistration(
         string providerName,
         bool supportsIndexing,
         IReadOnlyList<ProjectionReadModelIndexKind> indexKinds)
@@ -94,7 +94,7 @@ private static IProjectionReadModelStoreRegistration<TestReadModel, string> Crea
             supportsIndexing,
             indexKinds);
 
-        return new DelegateProjectionReadModelStoreRegistration<TestReadModel, string>(
+        return new DelegateProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>>(
             providerName,
             capabilities,
             _ => new NoopStore());
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
index f3f1934d0..6612e3d48 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
@@ -128,7 +128,7 @@ public void Select_WhenCapabilitiesUnsupportedAndFailFastDisabled_ShouldReturnPr
         selected.ProviderName.Should().Be("inmemory");
     }
 
-    private static IProjectionReadModelStoreRegistration<TestReadModel, string> CreateRegistration(
+    private static IProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>> CreateRegistration(
         string providerName,
         bool supportsIndexing,
         IEnumerable<ProjectionReadModelIndexKind>? indexKinds = null)
@@ -138,7 +138,7 @@ private static IProjectionReadModelStoreRegistration<TestReadModel, string> Crea
             supportsIndexing,
             indexKinds);
 
-        return new DelegateProjectionReadModelStoreRegistration<TestReadModel, string>(
+        return new DelegateProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>>(
             providerName,
             capabilities,
             _ => new NoopStore());
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj b/test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj
index 2f044fa3b..990d69098 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj
+++ b/test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj
@@ -9,7 +9,8 @@
     <RootNamespace>Aevatar.Workflow.Host.Api.Tests</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Abstractions\Aevatar.CQRS.Projection.Abstractions.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.AI.Projection\Aevatar.AI.Projection.csproj" />
     <ProjectReference Include="..\..\src\workflow\Aevatar.Workflow.Projection\Aevatar.Workflow.Projection.csproj" />
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 11303b37a..94906a4bf 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -84,7 +84,7 @@ public void AddWorkflowExecutionProjectionCQRS_ShouldUseInMemoryProviderByDefaul
 
         store.Should().BeOfType<InMemoryProjectionReadModelStore<WorkflowExecutionReport, string>>();
         relationStore.Should().BeOfType<InMemoryProjectionRelationStore>();
-        var metadata = store.Should().BeAssignableTo<IProjectionReadModelStoreProviderMetadata>().Subject;
+        var metadata = store.Should().BeAssignableTo<IProjectionStoreProviderMetadata>().Subject;
         metadata.ProviderCapabilities.ProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
     }
 
@@ -101,7 +101,7 @@ public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchConfiguredWithou
         using var provider = services.BuildServiceProvider();
         var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
         store.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        var metadata = store.Should().BeAssignableTo<IProjectionReadModelStoreProviderMetadata>().Subject;
+        var metadata = store.Should().BeAssignableTo<IProjectionStoreProviderMetadata>().Subject;
         metadata.ProviderCapabilities.SupportsIndexing.Should().BeTrue();
         metadata.ProviderCapabilities.IndexKinds.Should().Contain(ProjectionReadModelIndexKind.Document);
 
@@ -147,7 +147,7 @@ public async Task AddWorkflowExecutionProjectionCQRS_WhenNeo4jConfigured_ShouldR
 
         store.Should().BeOfType<Neo4jProjectionReadModelStore<WorkflowExecutionReport, string>>();
         relationStore.Should().BeOfType<Neo4jProjectionRelationStore>();
-        var metadata = store.Should().BeAssignableTo<IProjectionReadModelStoreProviderMetadata>().Subject;
+        var metadata = store.Should().BeAssignableTo<IProjectionStoreProviderMetadata>().Subject;
         metadata.ProviderCapabilities.SupportsIndexing.Should().BeTrue();
         metadata.ProviderCapabilities.IndexKinds.Should().Contain(ProjectionReadModelIndexKind.Graph);
     }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index 6df50746e..dadfb3ea8 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -66,12 +66,12 @@ public void AddWorkflowCapabilityWithAIDefaults_ShouldRegisterReadModelProviders
         builder.AddWorkflowCapabilityWithAIDefaults();
 
         var providerRegistrations = builder.Services
-            .Where(x => x.ServiceType == typeof(IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionReadModelStore<WorkflowExecutionReport, string>>))
             .ToList();
         providerRegistrations.Should().HaveCount(1);
 
         var relationRegistrations = builder.Services
-            .Where(x => x.ServiceType == typeof(IProjectionRelationStoreRegistration))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionRelationStore>))
             .ToList();
         relationRegistrations.Should().HaveCount(1);
     }
@@ -86,12 +86,12 @@ public void AddWorkflowProjectionReadModelProviders_MultipleCalls_ShouldBeIdempo
         services.AddWorkflowProjectionReadModelProviders(configuration);
 
         var providerRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionReadModelStore<WorkflowExecutionReport, string>>))
             .ToList();
         providerRegistrations.Should().HaveCount(1);
 
         var relationRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionRelationStoreRegistration))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionRelationStore>))
             .ToList();
         relationRegistrations.Should().HaveCount(1);
     }
@@ -112,10 +112,10 @@ public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_S
         services.AddWorkflowProjectionReadModelProviders(configuration);
 
         var providerRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionReadModelStoreRegistration<WorkflowExecutionReport, string>))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionReadModelStore<WorkflowExecutionReport, string>>))
             .ToList();
         var relationRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionRelationStoreRegistration))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionRelationStore>))
             .ToList();
         var selectionOptionsRegistrations = services
             .Where(x => x.ServiceType == typeof(IProjectionStoreSelectionRuntimeOptions))

From 4b55344565bbbb0a5be6f37caf6730e443949d6c Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Tue, 24 Feb 2026 22:24:08 +0800
Subject: [PATCH 25/46] Refactor Projection Abstractions and Update Global
 Usings

- Updated global using directives across multiple projects to reflect the new structure, replacing references to `Aevatar.CQRS.Projection.Abstractions` with `Aevatar.CQRS.Projection.Core.Abstractions` and `Aevatar.CQRS.Projection.Stores.Abstractions`.
- Removed the legacy `Aevatar.CQRS.Projection.Abstractions` references from the codebase, ensuring all components align with the refactored architecture.
- Enhanced overall code clarity and maintainability by streamlining the namespace usage in the projection-related components.
---
 .../GlobalUsings.cs                           |   2 +-
 .../GlobalUsings.cs                           |   3 +-
 .../Orchestration/CaseProjectionService.cs    |   2 +-
 ...ions-full-refactor-blueprint-2026-02-24.md | 102 -----
 ...review-remediation-blueprint-2026-02-24.md | 256 ------------
 ...odel-graph-relations-refactor-blueprint.md | 339 ----------------
 ...apability-refactor-blueprint-2026-02-24.md | 381 ------------------
 src/Aevatar.AI.Projection/GlobalUsings.cs     |   2 +-
 .../Abstractions/Core/IProjectionClock.cs     |   2 +-
 .../Abstractions/Core/IProjectionContext.cs   |   2 +-
 .../Core/IProjectionRuntimeOptions.cs         |   2 +-
 .../IProjectionStreamSubscriptionContext.cs   |   2 +-
 .../Pipeline/IProjectionCoordinator.cs        |   2 +-
 .../IProjectionDispatchFailureReporter.cs     |   2 +-
 .../Pipeline/IProjectionDispatcher.cs         |   2 +-
 .../Pipeline/IProjectionEventApplier.cs       |   2 +-
 .../Pipeline/IProjectionEventReducer.cs       |   2 +-
 .../Pipeline/IProjectionLifecycleService.cs   |   2 +-
 .../IProjectionOwnershipCoordinator.cs        |   2 +-
 .../Pipeline/IProjectionProjector.cs          |   2 +-
 .../IProjectionSubscriptionRegistry.cs        |   2 +-
 .../Ports/IProjectionPortActivationService.cs |   2 +-
 .../Ports/IProjectionPortLiveSinkForwarder.cs |   2 +-
 .../Ports/IProjectionPortReleaseService.cs    |   2 +-
 .../IProjectionPortSinkSubscriptionManager.cs |   2 +-
 .../Streaming/IActorStreamSubscriptionHub.cs  |   2 +-
 .../IActorStreamSubscriptionLease.cs          |   2 +-
 .../Streaming/IProjectionSessionEventCodec.cs |   2 +-
 .../Streaming/IProjectionSessionEventHub.cs   |   2 +-
 ...r.CQRS.Projection.Core.Abstractions.csproj |   2 +-
 .../GlobalUsings.cs                           |   2 +-
 .../ActorProjectionOwnershipCoordinator.cs    |   2 +-
 .../Streaming/ProjectionSessionEventHub.cs    |   2 +-
 .../GlobalUsings.cs                           |   2 +-
 .../GlobalUsings.cs                           |   2 +-
 .../GlobalUsings.cs                           |   2 +-
 .../GlobalUsings.cs                           |   2 +-
 .../DelegateProjectionStoreRegistration.cs    |   2 +-
 .../Core/IProjectionStoreProviderMetadata.cs  |   2 +-
 .../Core/IProjectionStoreRegistration.cs      |   2 +-
 .../IProjectionReadModelBindingResolver.cs    |   2 +-
 ...IProjectionReadModelCapabilityValidator.cs |   2 +-
 .../IProjectionReadModelProviderRegistry.cs   |   2 +-
 .../IProjectionReadModelProviderSelector.cs   |   2 +-
 .../ReadModels/IProjectionReadModelStore.cs   |   2 +-
 .../IProjectionReadModelStoreFactory.cs       |   2 +-
 .../ProjectionReadModelBindingException.cs    |   2 +-
 ...nReadModelCapabilityValidationException.cs |   2 +-
 .../ProjectionReadModelCapabilityValidator.cs |   2 +-
 .../ProjectionReadModelIndexKind.cs           |   2 +-
 .../ReadModels/ProjectionReadModelMode.cs     |   2 +-
 ...ProjectionReadModelProviderCapabilities.cs |   2 +-
 .../ProjectionReadModelProviderNames.cs       |   2 +-
 .../ProjectionReadModelRequirements.cs        |   2 +-
 .../ProjectionReadModelRuntimeOptions.cs      |   2 +-
 ...rojectionReadModelStoreSelectionOptions.cs |   2 +-
 .../ProjectionReadModelStoreSelector.cs       |   2 +-
 .../Relations/IProjectionRelationStore.cs     |   2 +-
 .../IProjectionRelationStoreFactory.cs        |   2 +-
 ...ProjectionRelationStoreProviderRegistry.cs |   2 +-
 ...ProjectionRelationStoreProviderSelector.cs |   2 +-
 .../Relations/ProjectionRelationDirection.cs  |   2 +-
 .../Relations/ProjectionRelationEdge.cs       |   2 +-
 .../Relations/ProjectionRelationNode.cs       |   2 +-
 .../Relations/ProjectionRelationQuery.cs      |   2 +-
 .../Relations/ProjectionRelationSubgraph.cs   |   2 +-
 .../IProjectionStoreSelectionPlanner.cs       |   2 +-
 ...IProjectionStoreSelectionRuntimeOptions.cs |   2 +-
 .../IProjectionStoreStartupValidator.cs       |   2 +-
 .../ProjectionProviderSelectionException.cs   |   2 +-
 .../Selection/ProjectionStoreSelectionPlan.cs |   2 +-
 .../Selection/ProjectionStoreSelector.cs      |   2 +-
 ...CQRS.Projection.Stores.Abstractions.csproj |   2 +-
 .../WorkflowExecutionAGUIEventProjector.cs    |   2 +-
 .../ServiceCollectionExtensions.cs            |   2 +-
 .../GlobalUsings.cs                           |   3 +-
 .../IWorkflowProjectionActivationService.cs   |   2 +-
 .../IWorkflowProjectionLiveSinkForwarder.cs   |   2 +-
 .../IWorkflowProjectionReleaseService.cs      |   2 +-
 ...rkflowProjectionSinkSubscriptionManager.cs |   2 +-
 .../WorkflowProjectionActivationService.cs    |   2 +-
 ...rkflowProjectionDispatchFailureReporter.cs |   2 +-
 .../WorkflowProjectionReleaseService.cs       |   2 +-
 ...ReadModelStartupValidationHostedService.cs |   2 +-
 .../WorkflowRunEventSessionCodec.cs           |   2 +-
 ...tionProviderServiceCollectionExtensions.cs |   3 +-
 .../GlobalUsings.cs                           |   3 +-
 .../GlobalUsings.cs                           |   2 +
 .../ProjectionCoordinatorTests.cs             |   2 +-
 ...WorkflowExecutionProjectionContextTests.cs |   2 +-
 ...lowExecutionProjectionRegistrationTests.cs |   2 +-
 ...WorkflowExecutionProjectionServiceTests.cs |   2 +-
 ...orkflowExecutionReadModelProjectorTests.cs |   2 +-
 ...WorkflowExecutionRelationProjectorTests.cs |   2 +-
 .../WorkflowHostingExtensionsCoverageTests.cs |   2 +-
 ...wProjectionDispatchFailureReporterTests.cs |   2 +-
 ...owProjectionOrchestrationComponentTests.cs |   2 +-
 97 files changed, 98 insertions(+), 1170 deletions(-)
 delete mode 100644 docs/architecture/projection-abstractions-full-refactor-blueprint-2026-02-24.md
 delete mode 100644 docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
 delete mode 100644 docs/architecture/readmodel-graph-relations-refactor-blueprint.md
 delete mode 100644 docs/architecture/readmodel-simple-rich-capability-refactor-blueprint-2026-02-24.md

diff --git a/demos/Aevatar.Demos.CaseProjection.Abstractions/GlobalUsings.cs b/demos/Aevatar.Demos.CaseProjection.Abstractions/GlobalUsings.cs
index dfed9c05f..5f93dae7e 100644
--- a/demos/Aevatar.Demos.CaseProjection.Abstractions/GlobalUsings.cs
+++ b/demos/Aevatar.Demos.CaseProjection.Abstractions/GlobalUsings.cs
@@ -1,3 +1,3 @@
-global using Aevatar.CQRS.Projection.Abstractions;
+global using Aevatar.CQRS.Projection.Core.Abstractions;
 global using Aevatar.Demos.CaseProjection.Abstractions.ReadModels;
 global using Aevatar.Foundation.Abstractions;
diff --git a/demos/Aevatar.Demos.CaseProjection/GlobalUsings.cs b/demos/Aevatar.Demos.CaseProjection/GlobalUsings.cs
index 57853c267..103add2eb 100644
--- a/demos/Aevatar.Demos.CaseProjection/GlobalUsings.cs
+++ b/demos/Aevatar.Demos.CaseProjection/GlobalUsings.cs
@@ -1,4 +1,5 @@
-global using Aevatar.CQRS.Projection.Abstractions;
+global using Aevatar.CQRS.Projection.Core.Abstractions;
+global using Aevatar.CQRS.Projection.Stores.Abstractions;
 global using Aevatar.CQRS.Projection.Core.Orchestration;
 global using Aevatar.CQRS.Projection.Core.Streaming;
 global using Aevatar.Demos.CaseProjection.Abstractions;
diff --git a/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs b/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs
index b1d3d1e88..7f7365ee0 100644
--- a/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs
+++ b/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs
@@ -1,5 +1,5 @@
 using Aevatar.Demos.CaseProjection.Configuration;
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using System.Collections.Concurrent;
 
 namespace Aevatar.Demos.CaseProjection.Orchestration;
diff --git a/docs/architecture/projection-abstractions-full-refactor-blueprint-2026-02-24.md b/docs/architecture/projection-abstractions-full-refactor-blueprint-2026-02-24.md
deleted file mode 100644
index bbfa5d6a9..000000000
--- a/docs/architecture/projection-abstractions-full-refactor-blueprint-2026-02-24.md
+++ /dev/null
@@ -1,102 +0,0 @@
-# Projection Abstractions 全量重构蓝图（2026-02-24）
-
-## 1. 文档信息
-- 状态：Implemented（Breaking）
-- 兼容性策略：不保留兼容层，旧单体抽象项目直接删除
-- 范围：`Projection.Abstractions` 体系及所有直接依赖方（Core/Runtime/Providers/Workflow/AI/Tests）
-- 决策：将抽象层拆分为两个项目：`Aevatar.CQRS.Projection.Core.Abstractions` 与 `Aevatar.CQRS.Projection.Stores.Abstractions`
-
-## 2. 重构目标
-1. 把“投影管线抽象”与“存储/能力选择抽象”强制分离。
-2. 消除单体抽象项目中职责混合导致的理解和演进成本。
-3. 在无兼容负担下，形成清晰依赖方向：业务可按能力按需依赖。
-4. 保持统一语义命名空间 `Aevatar.CQRS.Projection.Abstractions`，降低调用层改动噪声。
-
-## 3. 目标架构
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-    A["Aevatar.CQRS.Projection.Core.Abstractions"] --> A1["Core Context & Runtime"]
-    A --> A2["Pipeline Contracts"]
-    A --> A3["Ports Contracts"]
-    A --> A4["Streaming Contracts"]
-
-    B["Aevatar.CQRS.Projection.Stores.Abstractions"] --> B1["Store Registration & Metadata"]
-    B --> B2["ReadModel Store Contracts"]
-    B --> B3["Relation Store Contracts"]
-    B --> B4["Selection Planner & Startup Validator"]
-
-    C["Projection.Core"] --> A
-    D["Projection.Runtime"] --> B
-    E["Providers(InMemory/ES/Neo4j)"] --> B
-    F["Workflow.Projection"] --> A
-    F --> B
-    G["AI.Projection"] --> A
-```
-
-## 4. 项目拆分与职责
-
-### 4.1 `Aevatar.CQRS.Projection.Core.Abstractions`
-路径：`src/Aevatar.CQRS.Projection.Core.Abstractions/`
-
-包含：
-1. `Abstractions/Core`：`IProjectionContext`、`IProjectionRuntimeOptions`、`IProjectionClock`、`IProjectionStreamSubscriptionContext`
-2. `Abstractions/Pipeline`：`IProjectionCoordinator`、`IProjectionDispatcher`、`IProjectionProjector`、`IProjectionLifecycleService`、`IProjectionEventReducer`、`IProjectionEventApplier` 等
-3. `Abstractions/Ports`：activation/release/sink 端口协作契约
-4. `Abstractions/Streaming`：session event hub / actor stream subscription 契约
-
-边界：
-1. 不包含 provider 能力声明与选择逻辑。
-2. 不包含 readmodel/relation store 抽象。
-
-### 4.2 `Aevatar.CQRS.Projection.Stores.Abstractions`
-路径：`src/Aevatar.CQRS.Projection.Stores.Abstractions/`
-
-包含：
-1. `Abstractions/Core`：`IProjectionStoreRegistration<TStore>`、`DelegateProjectionStoreRegistration<TStore>`、`IProjectionStoreProviderMetadata`
-2. `Abstractions/ReadModels`：store/provider 能力、requirements、runtime options、binding、selector
-3. `Abstractions/Relations`：relation store/provider 与图查询模型
-4. `Abstractions/Selection`：selection planner、selection runtime options、startup validator、provider selection exception
-
-边界：
-1. 不包含投影生命周期/调度/订阅主链路抽象。
-2. 不包含业务模型与 provider 具体实现。
-
-## 5. 依赖矩阵（重构后）
-1. `Projection.Core` -> `Aevatar.CQRS.Projection.Core.Abstractions`
-2. `Projection.Runtime` -> `Aevatar.CQRS.Projection.Stores.Abstractions`
-3. `Projection.Providers.*` -> `Aevatar.CQRS.Projection.Stores.Abstractions`
-4. `Workflow.Projection` -> `Aevatar.CQRS.Projection.Core.Abstractions` + `Aevatar.CQRS.Projection.Stores.Abstractions`
-5. `Workflow.Presentation.AGUIAdapter` -> `Aevatar.CQRS.Projection.Core.Abstractions`
-6. `AI.Projection` -> `Aevatar.CQRS.Projection.Core.Abstractions`
-7. `Projection.StateMirror` -> 不再依赖 Projection Abstractions
-
-## 6. Breaking 变更清单
-1. 删除旧项目：`src/Aevatar.CQRS.Projection.Abstractions/Aevatar.CQRS.Projection.Abstractions.csproj`
-2. 新增项目：
-- `src/Aevatar.CQRS.Projection.Core.Abstractions/Aevatar.CQRS.Projection.Core.Abstractions.csproj`
-- `src/Aevatar.CQRS.Projection.Stores.Abstractions/Aevatar.CQRS.Projection.Stores.Abstractions.csproj`
-3. 解决方案与子解决方案改为引用新项目（`aevatar.slnx`、`aevatar.cqrs.slnf`）
-4. 所有依赖方 `ProjectReference` 全量切换到新拆分项目
-
-## 7. 选择链路治理（重构后）
-1. 业务仅声明需求：`ProjectionReadModelRequirements`
-2. Runtime 统一规划：`IProjectionStoreSelectionPlanner`
-3. Provider 统一选择：`ProjectionStoreSelector`
-4. 启动期统一 fail-fast：`IProjectionStoreStartupValidator`
-
-约束：
-1. Workflow 业务层不再承载 provider 选择规则，只消费组合层注入结果。
-2. Provider capabilities 声明必须与真实实现一致，不允许“声明支持但未实现”。
-
-## 8. 验证标准
-1. `dotnet build aevatar.slnx --nologo` 通过
-2. `dotnet test aevatar.slnx --nologo` 或关键分片测试通过
-3. `bash tools/ci/architecture_guards.sh` 通过
-4. `bash tools/ci/test_stability_guards.sh` 通过
-
-## 9. 后续演进建议
-1. 增加架构门禁：禁止新增 `src/Aevatar.CQRS.Projection.Abstractions/*` 单体项目回流。
-2. 对 `Aevatar.CQRS.Projection.Core.Abstractions` 与 `Aevatar.CQRS.Projection.Stores.Abstractions` 做分片构建门禁，避免跨边界漂移。
-3. 新增抽象优先落在两个项目之一，禁止在 Workflow 层复制通用抽象。
diff --git a/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md b/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
deleted file mode 100644
index ace5667be..000000000
--- a/docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md
+++ /dev/null
@@ -1,256 +0,0 @@
-# Projection Provider 评审问题重构蓝图（2026-02-24）
-
-- 状态：Implemented
-- 变更类型：Breaking Refactor（不考虑兼容性）
-- 输入来源：本轮 code review 7 项问题（3 Blocking / 2 Major / 2 Minor）
-
-## 1. 执行目标
-
-1. 让 Provider 能力声明与真实实现严格一致，避免误导选择器与启动校验。
-2. 为 Elasticsearch ReadModel 写入引入可验证的并发安全（OCC），消除 stale write 覆盖。
-3. 清理 Host 组合层多 Provider 默认并存导致的选择歧义。
-4. 对索引缺失、绑定冲突、排序稳定性、能力匹配语义做 fail-fast 与确定性收敛。
-5. 通过测试与 CI 门禁固化上述规则，避免回归。
-
-## 2. 问题清单（Review 输入映射）
-
-| ID | Severity | 证据位置 | 问题摘要 |
-|---|---|---|---|
-| B1 | Blocking | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs:26` + `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:353` | Elasticsearch 声明 `supportsAliases=true`、`supportsSchemaValidation=true`，但无对应实现。 |
-| B2 | Blocking | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:76` + `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:174` | `MutateAsync` 读改写 + 普通 PUT，缺少 OCC，重放/重试/并发存在覆盖风险。 |
-| B3 | Blocking | `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs:26` + `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs:49` | 同一 ReadModel 同时注册多个 Provider，未显式指定时选择歧义。 |
-| M1 | Major | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:105` + `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:127` | `AutoCreateIndex=false` 且索引缺失时被当成无数据，掩盖配置错误。 |
-| M2 | Major | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs:43` | 绑定解析 `Type.Name` 优先于 `FullName`，同名类型误绑定风险。 |
-| N1 | Minor | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:241` | `ListSortField` 为空时不排序，返回顺序不稳定。 |
-| N2 | Minor | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs:24` | `RequiredIndexKinds` 使用 `Overlaps`（任一匹配），语义偏宽松。 |
-
-## 3. 目标架构决策（To-Be）
-
-### 3.1 B1 能力声明真实性（Capability Truthfulness）
-
-1. 立即收敛为“声明即实现”：Elasticsearch ReadModel/Relation provider 的 `supportsAliases` 与 `supportsSchemaValidation` 统一改为 `false`。
-2. 不在本轮引入“空能力声明 + 未来补实现”的过渡状态。
-3. README 与运行日志输出同步能力矩阵，避免二义性。
-
-设计原则：
-
-- 能力字段仅表达已落地、可被测试验证的行为。
-- Provider 选择与启动校验不允许依赖“计划能力”。
-
-### 3.2 B2 写入并发安全（OCC）
-
-1. Elasticsearch Provider 引入 `seq_no + primary_term` 的乐观并发控制。
-2. `MutateAsync` 改为：`GET(_seq_no/_primary_term/_source) -> mutate -> PUT(if_seq_no/if_primary_term)`，冲突时有限重试。
-3. 冲突超过重试上限后抛出明确并发异常（包含 `index/key/retries`），不静默覆盖。
-4. `UpsertAsync` 保持直接写入，但对“更新路径”也支持可选 OCC 参数扩展点。
-
-设计原则：
-
-- 读改写必须具备并发冲突检测能力。
-- 重放/重试场景下禁止“最后写入者覆盖”。
-
-### 3.3 B3 Provider 组合层去歧义
-
-1. Host 组合层不再无条件注册 InMemory/Elasticsearch/Neo4j 三套 ReadModel Provider。
-2. 改为“按配置按需注册”：仅注册 `ReadModelProvider` 与 `RelationProvider` 实际需要的 provider。
-3. 若配置为空或未知 provider，启动阶段直接 fail-fast 并给出配置路径提示（`Projection:ReadModel:Provider` / `Projection:ReadModel:RelationProvider`）。
-4. 删除隐式默认推断，避免环境切换时行为漂移。
-
-设计原则：
-
-- 组合层负责消除二义性，不把歧义下放到运行时选择器。
-- 配置错误要在启动期暴露，不延迟到首个请求。
-
-### 3.4 M1 索引缺失策略显式化
-
-1. 新增 `MissingIndexBehavior`（建议枚举）：`Throw` / `WarnAndReturnEmpty`。
-2. 默认 `Throw`（breaking）：`AutoCreateIndex=false` 且索引不存在时，`Get/List` 抛错。
-3. `WarnAndReturnEmpty` 仅作为开发调试模式，不作为生产默认。
-4. 日志与指标输出：`provider/index/operation/behavior`。
-
-### 3.5 M2 绑定解析确定性
-
-1. 绑定键只接受 `Type.FullName`（breaking）。不再使用 `Type.Name` 回退。
-2. 解析失败时抛出结构化异常，明确给出期望键名示例。
-3. 启动校验增加“绑定键格式检查”，禁止短名键混入。
-
-### 3.6 N1 List 顺序稳定性
-
-1. `ListAsync` 始终带排序条件。
-2. 当 `ListSortField` 为空时，默认按 `CreatedAt desc -> _id desc` 排序，优先按创建时间倒序并保证稳定输出。
-3. 在 README 中明确排序语义与默认行为。
-
-### 3.7 N2 RequiredIndexKinds 语义收紧
-
-1. 能力校验由“任一命中（Overlaps）”改为“全部包含（AllContained）”。
-2. 未来如需“任一命中”语义，必须通过显式匹配模式字段表达，不能默认放宽。
-
-## 4. 详细改造清单（按代码层次）
-
-### 4.1 Abstractions 层
-
-目标文件：
-
-- `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs`
-- `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs`（如需引入匹配模式）
-
-改造项：
-
-1. `RequiredIndexKinds` 校验从 `Overlaps` 切换为 `All(...)`。
-2. 如保留双语义，新增显式 `IndexKindMatchMode`，默认 `All`。
-
-### 4.2 Runtime 层
-
-目标文件：
-
-- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs`
-- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs`
-
-改造项：
-
-1. Binding resolver 仅解析 `FullName` 键。
-2. 异常消息增强：输出 read model type + 期望配置键 + 实际键列表（截断）。
-3. 选择器错误日志保持结构化，补充“配置缺失/未知 provider”的专有 reason。
-
-### 4.3 Elasticsearch Provider 层
-
-目标文件：
-
-- `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs`
-- `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs`
-- `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs`
-- `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md`
-
-改造项：
-
-1. 能力声明修正：`supportsAliases=false`、`supportsSchemaValidation=false`。
-2. OCC 落地：
-   - 读取文档时抓取 `_seq_no`、`_primary_term`。
-   - 更新请求带 `if_seq_no`、`if_primary_term`。
-   - 冲突重试（可配置上限）。
-3. 索引缺失行为策略化：新增 `MissingIndexBehavior` 与默认 `Throw`。
-4. `ListAsync` 默认排序兜底为 `CreatedAt desc -> _id desc`。
-5. 文档更新：能力矩阵、排序语义、索引缺失策略、并发冲突行为。
-
-### 4.4 Workflow Host 组合层
-
-目标文件：
-
-- `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
-- `src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`
-- `src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs`
-- `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs`
-- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs`
-- `src/workflow/Aevatar.Workflow.Projection/README.md`
-
-改造项：
-
-1. Provider 注册改为按需注册，不再全量注册三套 provider。
-2. 未知 provider 启动即失败；缺失 provider 时仅在 Host 组合层应用默认值（`InMemory`）。
-3. Workflow 业务选项移除 provider 语义，统一由 `ProjectionReadModelRuntimeOptions` 承载。
-4. 文档示例统一改为 `FullName` 绑定键。
-
-## 5. 测试计划（必须新增）
-
-### 5.1 单元测试
-
-目标项目：`test/Aevatar.CQRS.Projection.Core.Tests`
-
-新增/改造用例：
-
-1. 能力声明一致性：Elasticsearch capability 不再声明 alias/schema 支持。
-2. `RequiredIndexKinds` 全包含语义测试（正例/反例）。
-3. Binding resolver 仅 FullName：短名键失败、FullName 成功。
-
-### 5.2 组件/集成测试
-
-目标项目：
-
-- `test/Aevatar.CQRS.Projection.Core.Tests`
-- `test/Aevatar.Workflow.Host.Api.Tests`
-
-新增/改造用例：
-
-1. Elasticsearch OCC 并发冲突测试：并发 mutate 不发生静默覆盖，冲突可观测。
-2. `AutoCreateIndex=false` 且索引缺失：默认抛错；`WarnAndReturnEmpty` 下返回空并记录警告。
-3. Host 按需注册：仅配置单 provider 时无歧义；空配置启动失败；未知 provider 启动失败。
-4. `ListAsync` 默认排序稳定性测试（同一数据集多次读取顺序一致）。
-
-### 5.3 回归验证命令
-
-1. `dotnet build aevatar.slnx --nologo`
-2. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
-3. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
-4. `dotnet test aevatar.slnx --nologo`
-5. `bash tools/ci/architecture_guards.sh`
-6. `bash tools/ci/test_stability_guards.sh`
-
-## 6. 实施阶段（WBS）
-
-### Phase 0（Blocking，必须先完成）
-
-1. 修正 Elasticsearch capability 声明（B1）。
-2. 引入 OCC 并发控制与冲突异常（B2）。
-3. Host 组合层改为按需注册 + 显式配置 fail-fast（B3）。
-
-交付标准：
-
-1. 3 个 blocking 问题对应测试全部通过。
-2. 无配置歧义路径可进入运行期。
-
-### Phase 1（Major）
-
-1. 索引缺失策略改为显式配置且默认抛错（M1）。
-2. Binding resolver 改为 FullName-only 并补齐启动校验（M2）。
-
-交付标准：
-
-1. 配置错误在启动阶段暴露。
-2. 读模型绑定无短名误绑定路径。
-
-### Phase 2（Minor + 文档收口）
-
-1. List 默认排序兜底（N1）。
-2. IndexKind 全包含语义（N2）。
-3. README/架构文档与配置示例统一更新。
-
-交付标准：
-
-1. 行为确定性增强且文档可执行。
-2. 全量构建/测试/门禁通过。
-
-## 7. 验收标准（Definition of Done）
-
-1. 所有 review 项对应的代码路径均有测试覆盖。
-2. Provider 能力声明与实现一致，不存在“声明支持但无实现”的字段。
-3. Elasticsearch 读改写路径具备 OCC，冲突有确定性行为（重试或失败）。
-4. Workflow Host Provider 组合无歧义，配置缺失/错误启动即失败。
-5. Binding 只接受 FullName，消除跨命名空间同名冲突风险。
-6. List 默认顺序稳定。
-7. CI 门禁与全量测试通过，文档与实现一致。
-
-## 8. 风险与控制
-
-1. 风险：去除短名绑定与隐式 provider 默认值会导致旧配置启动失败。
-2. 控制：错误信息必须指向具体配置路径，并在 README 给出新配置示例。
-3. 风险：OCC 重试增加写延迟。
-4. 控制：重试次数与超时可配置，冲突率纳入日志/指标观察。
-
-## 9. 文档同步清单
-
-需要同步更新：
-
-1. `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md`
-2. `src/workflow/Aevatar.Workflow.Projection/README.md`
-3. `docs/CQRS_ARCHITECTURE.md`（Provider 选择与 binding 规则）
-4. `docs/architecture/readmodel-graph-relations-refactor-blueprint.md`（补充本次 hardening 决策链接）
-
-## 10. 本轮实施结果（2026-02-24）
-
-1. 已完成 B1/B2/B3、M1/M2、N1/N2 全部代码改造与测试补齐。
-2. 验证结果：
-   - `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`：通过。
-   - `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`：通过。
-   - `dotnet test aevatar.slnx --nologo`：通过。
-   - `bash tools/ci/architecture_guards.sh`：通过。
-   - `bash tools/ci/test_stability_guards.sh`：通过。
diff --git a/docs/architecture/readmodel-graph-relations-refactor-blueprint.md b/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
deleted file mode 100644
index aa690c29d..000000000
--- a/docs/architecture/readmodel-graph-relations-refactor-blueprint.md
+++ /dev/null
@@ -1,339 +0,0 @@
-# ReadModel 图关系能力重构文档（实施版）
-
-## 1. 文档信息
-- 状态：Phase2 Refactor Implemented（Breaking）
-- 版本：v3.0
-- 日期：2026-02-24
-- 分支：`feat/readmodel-graph-relations`
-- 适用目录：`src/`、`test/`、`docs/architecture/`
-
-## 2. 目标与边界
-
-### 2.1 目标
-1. 在现有单一 Projection 主链路中引入“图关系事实”能力，不新增平行系统。
-2. 让 `ReadModel` 的 `Graph` 绑定不仅代表“存储类型”，还代表“可用关系能力”。
-3. 在 Workflow 读侧提供关系查询能力（邻接、子图），并保持 `Command -> Event -> Projection -> Query` 主干不变。
-
-### 2.2 非目标
-1. 不引入第二套 Projection Pipeline。
-2. 不在中间层新增 `actorId -> context` 之类进程内事实态缓存。
-3. 不引入跨业务域的通用图 DSL。
-
-## 3. 重构前现状分析（As-Is）
-
-### 3.1 ReadModel 索引能力
-1. 运行时已存在统一选择链：`Bindings -> Requirements -> Capabilities -> Selector -> StoreFactory`。
-2. `ProjectionReadModelIndexKind` 已支持 `Document` / `Graph`。
-3. Provider 已支持统一注册与能力协商：InMemory / Elasticsearch / Neo4j。
-
-### 3.2 关系能力缺口
-1. 抽象层缺少关系一等接口：只有 `IProjectionReadModelStore<TReadModel,TKey>`，没有节点/边读写与遍历契约。
-2. `Graph` 绑定未约束“关系能力”：Provider 选择只关注索引，不关注关系存储/遍历。
-3. Workflow 读侧关系数据仅以 `Topology` 列表存在于文档读模型，未形成图事实源。
-4. API 没有关系端点，仅有 actor snapshot/timeline。
-
-## 4. 设计原则（与仓库顶级规则对齐）
-1. 单主干：关系能力挂接既有 Runtime 选择器与 Projector 协调器。
-2. 分层清晰：
-- `Abstractions` 定义关系契约。
-- `Runtime` 做能力协商与创建。
-- `Providers` 做关系存储实现。
-- `Workflow` 做关系语义映射与查询暴露。
-3. 事实源唯一：关系事实进入 `IProjectionRelationStore`；`WorkflowExecutionReport.Topology` 保留为派生视图。
-4. 可验证：构建、测试、架构门禁、测试稳定性门禁全部可执行。
-
-## 5. 目标架构（To-Be）
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-    A["Projection Bindings"] --> B["ProjectionReadModelBindingResolver"]
-    B --> C["ProjectionReadModelRequirements"]
-    C --> D["ReadModel Provider Selector"]
-    C --> E["Relation Provider Selector"]
-    D --> F["IProjectionReadModelStore"]
-    E --> G["IProjectionRelationStore"]
-    F --> H["WorkflowExecutionReadModelProjector"]
-    F --> I["WorkflowExecutionRelationProjector"]
-    G --> I
-    I --> J["Graph Facts (Node/Edge)"]
-    H --> K["WorkflowExecutionReport"]
-    K --> L["WorkflowProjectionQueryReader"]
-    J --> L
-```
-
-### 5.1 说明
-1. 上图描述的是当前已落地主链路（Phase1 + Phase2）。
-2. Phase2 已完成：Projection 端口拆分为 Lifecycle/Query，ReadModel/Relation provider 配置与校验解耦。
-3. 运行时启动校验抽象已下沉到 CQRS Runtime：`IProjectionStoreStartupValidator`。
-
-## 6. 抽象层重构内容
-
-### 6.1 新增关系契约
-新增文件：
-1. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs`
-2. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationNode.cs`
-3. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationEdge.cs`
-4. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationQuery.cs`
-5. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs`
-6. `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationDirection.cs`
-
-### 6.2 新增关系 Provider 选择抽象
-新增文件：
-1. `IProjectionStoreRegistration<IProjectionRelationStore>`
-2. `DelegateProjectionStoreRegistration<IProjectionRelationStore>`
-3. `IProjectionRelationStoreProviderRegistry`
-4. `IProjectionRelationStoreProviderSelector`
-5. `IProjectionRelationStoreFactory`
-
-### 6.3 能力模型扩展
-扩展文件：
-1. `ProjectionReadModelRequirements`
-- `RequiresRelations`
-- `RequiresRelationTraversal`
-2. `ProjectionReadModelProviderCapabilities`
-- `SupportsRelations`
-- `SupportsRelationTraversal`
-3. `ProjectionReadModelCapabilityValidator`
-- 新增关系能力校验规则。
-
-## 7. Runtime 重构内容
-
-### 7.1 新增关系 Runtime 组件
-新增文件：
-1. `ProjectionRelationStoreProviderRegistry`
-2. `ProjectionRelationStoreProviderSelector`
-3. `ProjectionRelationStoreFactory`
-
-### 7.2 运行时注入扩展
-文件：`src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs`
-1. 注册关系 Provider Registry/Selector/Factory。
-
-### 7.3 绑定语义增强
-文件：`ProjectionReadModelBindingResolver.cs`
-1. 当 binding 为 `Graph` 时，要求：
-- `requiresRelations = true`
-- `requiresRelationTraversal = true`
-
-## 8. Provider 层重构内容
-
-### 8.1 InMemory
-新增：
-1. `InMemoryProjectionRelationStore`
-
-扩展：
-1. `AddInMemoryRelationStoreRegistration(...)`
-2. InMemory ReadModel capability 增加 relation 支持声明。
-
-能力：
-1. 节点/边 upsert
-2. 邻居查询
-3. 有界深度子图查询（BFS 风格）
-
-### 8.2 Elasticsearch
-新增：
-1. `ElasticsearchProjectionRelationStore`（显式 no-op）
-
-扩展：
-1. `AddElasticsearchRelationStoreRegistration(...)`
-
-能力声明：
-1. `supportsRelations=false`
-2. `supportsRelationTraversal=false`
-
-### 8.3 Neo4j
-新增：
-1. `Neo4jProjectionRelationStore`
-2. `Neo4jProjectionRelationStoreOptions`
-
-扩展：
-1. `AddNeo4jRelationStoreRegistration(...)`
-2. Neo4j ReadModel capability 增加 relation 支持声明。
-
-能力：
-1. 节点/边 upsert/delete
-2. 邻居查询（入/出/双向）
-3. 有界深度子图查询
-4. 节点唯一约束自动初始化（可配置）
-
-## 9. Workflow 层重构内容
-
-### 9.1 关系投影器
-新增文件：
-1. `src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs`
-
-策略：
-1. 复用同一 `IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>` 主链。
-2. `InitializeAsync` 创建根 actor 与 run 节点，并写 `OWNS` 边。
-3. `CompleteAsync` 按 runtime topology 写 `CHILD_OF` 边，并按 step 写 `CONTAINS_STEP` 边。
-4. 关系 scope 固定为 `WorkflowExecutionRelationConstants.Scope`。
-
-### 9.2 关系查询链路
-扩展：
-1. `IWorkflowProjectionQueryReader`
-2. `WorkflowProjectionQueryReader`
-3. `IWorkflowExecutionProjectionLifecyclePort`
-4. `IWorkflowExecutionProjectionQueryPort`
-5. `WorkflowExecutionProjectionLifecycleService`
-6. `WorkflowExecutionProjectionQueryService`
-7. `IWorkflowExecutionQueryApplicationService`
-8. `WorkflowExecutionQueryApplicationService`
-9. `WorkflowExecutionReadModelMapper`
-10. `WorkflowExecutionQueryModels`
-
-新增：
-1. `WorkflowExecutionRelationConstants`
-
-### 9.3 Workflow DI 选择器接入
-文件：`src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`
-1. 在既有 ReadModel selector 基础上增加 Relation selector。
-2. `IProjectionRelationStore` 使用独立 relation selection（`RelationSelectionOptions + RelationRequirements`）。
-
-### 9.4 启动期 fail-fast 校验增强
-文件：`WorkflowReadModelStartupValidationHostedService.cs`
-1. 启动时同时校验：
-- ReadModel Provider 选择与能力
-- Relation Provider 选择与能力
-
-## 10. Host 与 API 改造
-
-### 10.1 Provider 组合层
-文件：`src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
-1. 为三类 provider 全部注册 relation store：
-- InMemory
-- Elasticsearch
-- Neo4j
-
-### 10.2 新增关系查询端点
-文件：`src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs`
-1. `GET /api/actors/{actorId}/relations?take=200`
-2. `GET /api/actors/{actorId}/relation-subgraph?depth=2&take=200`
-
-## 11. 关系模型约定（Workflow）
-1. NodeType
-- `Actor`
-- `WorkflowRun`
-- `WorkflowStep`
-2. RelationType
-- `OWNS`
-- `CHILD_OF`
-- `CONTAINS_STEP`
-3. Scope
-- `workflow-execution-relations`
-
-## 12. Provider 能力矩阵
-
-| Provider | IndexKinds | SupportsRelations | SupportsRelationTraversal | 说明 |
-|---|---|---:|---:|---|
-| InMemory | None | Yes | Yes | 开发/测试优先，内存实现 |
-| Elasticsearch | Document | No | No | 文档索引，不作为关系事实源 |
-| Neo4j | Graph | Yes | Yes | 生产图关系能力 |
-
-## 13. 迁移与上线建议（最佳实践）
-1. Phase 1：合并结构改造（已完成）
-- 接口、Runtime、Provider、Workflow API 全链路到位。
-2. Phase 2：架构收敛（已完成）
-- 拆分 `ProjectionPort` 读写职责，删除混合接口。
-- 将启动校验下沉到 Runtime 通用抽象。
-- 分离 ReadModel 与 Relation 的 provider 选择配置。
-- 删除 QueryReader relation fallback，错误配置 fail-fast。
-3. Phase 3：关系数据回填（可选）
-- 从历史 `WorkflowExecutionReport.Topology` 扫描并幂等写回关系边。
-4. Phase 4：灰度切流
-- 对关键租户/环境启用 `Graph + Neo4j` 绑定。
-5. Phase 5：运行优化
-- 根据业务规模补充 relation 查询指标、告警与容量基线。
-
-## 14. 验证与门禁
-
-### 14.1 已执行验证命令
-1. `dotnet build aevatar.slnx --nologo`
-2. `dotnet test test/Aevatar.Workflow.Application.Tests/Aevatar.Workflow.Application.Tests.csproj --nologo`
-3. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
-4. `dotnet test aevatar.slnx --nologo`
-5. `bash tools/ci/architecture_guards.sh`
-6. `bash tools/ci/test_stability_guards.sh`
-
-### 14.2 验证结果
-1. 全部通过，无编译错误。
-2. 受影响测试与全量测试通过。
-3. 架构门禁与测试稳定性门禁通过。
-
-## 15. 风险与后续优化
-
-### 15.1 当前风险
-1. Elasticsearch relation store 为 no-op，若将其配置为 `RelationProvider` 将在选择阶段 fail-fast（需显式配置支持关系能力的 provider）。
-2. `CHILD_OF` 关系在 `CompleteAsync` 阶段写入；超长运行期间拓扑中间态不可见。
-3. `StepCompletedEvent` 缺少 `step_type/target_role`，关系投影需要读取已存在 step 节点做字段合并，对 relation store 的节点读取语义有依赖。
-4. ReadModel/Relation 双 provider 部署下，文档视图与关系视图在异步投影时可能出现短暂最终一致性窗口。
-
-### 15.2 建议优化
-1. 增加 relation query 指标（QPS、P95、结果规模）与告警阈值。
-2. 增加 Neo4j relation E2E（容器化）专项测试。
-3. 如需实时关系可视化，可在 `ProjectAsync` 逐步增量写入关键边类型。
-4. 在配置中心增加 `ReadModelProvider/RelationProvider` 组合审计，防止发布时误配。
-
-## 16. 关键变更清单（按层）
-
-### 16.1 Abstractions
-1. 新增关系模型与 relation provider 选择抽象。
-2. 扩展 requirements/capabilities/validator。
-
-### 16.2 Runtime
-1. 新增 relation provider registry/selector/factory。
-2. Graph binding 对应关系能力要求。
-
-### 16.3 Providers
-1. InMemory/Neo4j 完整 relation store。
-2. Elasticsearch 显式不支持关系。
-
-### 16.4 Workflow
-1. 新增 `WorkflowExecutionRelationProjector`。
-2. 应用端口拆分为 `LifecyclePort + QueryPort`，Application 层按职责依赖端口。
-3. Query/Application/API 全链路支持 relations/subgraph。
-4. 启动期 relation provider fail-fast。
-
-### 16.5 Tests
-1. 全部 fake 接口实现同步。
-2. 新增关系查询应用层测试与 API 端点测试。
-3. Host provider 注册覆盖扩展到 relation registration。
-
-## 17. Phase2 整改完成记录（2026-02-24）
-
-### 17.1 已完成整改项
-1. 端口拆分完成：
-- `IWorkflowExecutionProjectionLifecyclePort`（Ensure/Attach/Detach/Release）
-- `IWorkflowExecutionProjectionQueryPort`（Snapshot/Timeline/Relations/Subgraph）
-2. Provider 解耦完成：
-- 新增 `RelationProvider` 独立配置，支持与 `ReadModelProvider` 不同。
-- 选择计划拆分为 `ReadModelSelectionOptions/Requirements` 与 `RelationSelectionOptions/Requirements`。
-3. Runtime 抽象下沉完成：
-- 新增 `IProjectionStoreStartupValidator`，启动校验通过 Runtime 抽象执行。
-- 新增通用端口基类：`ProjectionLifecyclePortServiceBase<>`、`ProjectionQueryPortServiceBase<>`，Workflow 端只保留领域类型绑定。
-4. 失败语义收敛完成：
-- 删除 QueryReader relation fallback。
-- 关系 provider 不满足能力时在选择阶段 fail-fast。
-5. 投影耦合收敛完成：
-- `WorkflowExecutionRelationProjector` 不再依赖 ReadModelStore。
-- step 关系字段通过 relation store 读写合并，避免覆盖已写入属性。
-6. 治理门禁同步完成：
-- `architecture_guards.sh` 已升级为校验 Lifecycle/Query 双端口约束。
-
-### 17.2 DoD 验收结果
-1. `Workflow.Application` 已不依赖混合 ProjectionPort：通过。
-2. 生产可验证 `ReadModelProvider != RelationProvider`：通过（新增 Elasticsearch + InMemory 组合测试）。
-3. 错误 relation 配置 fail-fast：通过（新增 Elasticsearch 未配置 RelationProvider 失败测试）。
-4. 架构与稳定性门禁：通过。
-5. `dotnet build/test` 全量验证：通过。
-
-### 17.3 兼容性声明
-1. 本次重构为不兼容变更，已删除 `IWorkflowExecutionProjectionPort`。
-2. 旧接口调用方必须迁移到 Lifecycle/Query 双端口。
-
-## 18. Provider 硬化补充（2026-02-24）
-1. Elasticsearch 能力声明已收敛为真实实现：不再声明 alias/schema validation 能力。
-2. Elasticsearch `MutateAsync` 已引入 `seq_no/primary_term` OCC，冲突路径具备重试与失败语义。
-3. `AutoCreateIndex=false` 且索引缺失默认 fail-fast，支持 `MissingIndexBehavior=WarnAndReturnEmpty` 调试模式。
-4. ReadModel binding 已收敛为 `Type.FullName` 键，短名键直接抛配置异常。
-5. Workflow Host provider 注册改为按配置按需注册，消除多 provider 未指定歧义。
-6. 详见：`docs/architecture/projection-provider-review-remediation-blueprint-2026-02-24.md`。
diff --git a/docs/architecture/readmodel-simple-rich-capability-refactor-blueprint-2026-02-24.md b/docs/architecture/readmodel-simple-rich-capability-refactor-blueprint-2026-02-24.md
deleted file mode 100644
index 2349822ee..000000000
--- a/docs/architecture/readmodel-simple-rich-capability-refactor-blueprint-2026-02-24.md
+++ /dev/null
@@ -1,381 +0,0 @@
-# ReadModel 双速能力架构重构文档（Simple + Rich）
-
-## 1. 文档信息
-- 状态：Proposed（Breaking, 不保留兼容层）
-- 版本：v1.0
-- 日期：2026-02-24
-- 适用范围：`src/Aevatar.CQRS.Projection.*`、`src/workflow/*`、`test/*`、`tools/ci/*`
-- 目标：实现“默认简单开发路径 + 可治理的高级能力路径”，并保持单一 Projection 主链路
-
-## 2. 背景与问题
-
-### 2.1 当前问题
-1. ReadModel 与 Relation 能力已具备基础框架，但“简单场景”和“复杂场景”缺少统一分层策略。
-2. 一些领域语义（如 `StartedAt`）曾被误放到基础抽象，导致抽象层与 Workflow 语义耦合。
-3. 关系查询能力可用但表达力有限，难以覆盖复杂图查询（过滤、路径约束、分页游标、多根聚合）。
-4. Provider 组合虽支持 split（ReadModel/Relation 分离），但缺少环境分级模板与强门禁，易误配。
-5. 存在空类/薄封装类，基础抽象复用不足，增加维护成本。
-
-### 2.2 根因
-1. “能力扩展点”与“默认路径”未显式分层。
-2. 能力声明、模型定义、Provider 选择存在，但缺少统一的“模型 Profile + 环境策略”收敛机制。
-3. 治理规则没有完整固化到启动校验和 CI 门禁（尤其生产环境组合约束）。
-
-## 3. 重构目标
-
-### 3.1 主目标
-1. 保持最小开发路径：普通业务只需实现 ReadModel + Reducer，不需要理解图能力细节。
-2. 提供丰富能力路径：复杂需求可启用 Graph/Relation/Advanced Query，不污染默认路径。
-3. 严格分层：`Domain / Application / Infrastructure / Host`，`Workflow` 不侵入基础抽象语义。
-4. 单一主链路：所有能力基于统一 Projection Pipeline 插件化扩展，不引入第二系统。
-5. 可治理：启动期 fail-fast + CI guard，确保环境配置、能力声明、实现行为一致。
-6. 职责边界清晰：`Workflow` 不负责 `Graph/Document` 与 provider 选择，选择权在业务方组合层。
-
-### 3.2 非目标
-1. 不引入额外中间层事实缓存（禁止 `actorId -> context` 进程内事实态映射）。
-2. 不在本轮引入跨产品通用图分析 DSL 引擎。
-3. 不保留历史兼容壳层。
-4. 不在 `Workflow` 业务层编排 provider/index kind 选择逻辑。
-
-## 4. 设计原则
-1. 默认极简：内核接口最小化，降低开发门槛。
-2. 能力叠加：高级能力通过可选接口/能力声明按需启用。
-3. 约束优先：任何扩展必须走能力校验和策略合并，禁止绕过选择器。
-4. 语义分层：基础层只保留通用语义（`CreatedAt/UpdatedAt`），领域语义下沉到领域模型。
-5. 一致性可选分级：默认最终一致；强一致需求通过可选模式（Outbox/Checkpoint）开启。
-6. 组合层决策：ReadModel 投影到哪个 provider 由业务方/Host 组合层决定，Workflow 只消费抽象端口。
-
-## 5. 目标架构
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-    A["Domain Events"] --> B["Unified Projection Pipeline"]
-    B --> C["ReadModel Projector"]
-    B --> D["Relation Projector"]
-    C --> E["IProjectionReadModelStore<T, TKey>"]
-    D --> F["IProjectionRelationStore"]
-    E --> G["Document ReadModels"]
-    F --> H["Graph Facts(Node/Edge)"]
-    I["ReadModel Profile"] --> J["Requirements Builder"]
-    K["Environment Policy"] --> J
-    J --> L["Capability Validator"]
-    L --> M["Provider Selector"]
-    M --> E
-    M --> F
-```
-
-### 5.1 关键点
-1. 只保留一个权威主链：`Event -> Projector -> Store`。
-2. 复杂能力通过 Profile 与 Policy 驱动 Provider 选择，不在 `Workflow` 业务代码里硬编码 Provider。
-3. Workflow/AI 等领域仅定义“自己的模型和关系语义”，不修改基础抽象含义。
-4. Provider 选择权在业务方组合层，Runtime 负责能力校验与 fail-fast。
-
-## 6. 抽象层重构（Abstractions）
-
-### 6.1 统一基础实体基类（消除空类）
-新增统一基类（示意）：
-
-```csharp
-public abstract class ProjectionReadModelBase<TKey>
-    where TKey : notnull
-{
-    public TKey Id { get; init; } = default!;
-    public long StateVersion { get; set; }
-    public string LastEventId { get; set; } = string.Empty;
-    public DateTimeOffset CreatedAt { get; set; } = DateTimeOffset.UtcNow;
-    public DateTimeOffset UpdatedAt { get; set; } = DateTimeOffset.UtcNow;
-}
-```
-
-规则：
-1. 基类只包含跨域通用语义，不包含 Workflow 特有字段（如 `StartedAt`）。
-2. 领域字段（例如 `StartedAt/EndedAt/Duration`）保留在领域 ReadModel 内。
-
-### 6.2 双层能力接口
-保留最小接口：
-1. `IProjectionReadModelStore<TReadModel, TKey>`
-
-新增可选高级接口（示意）：
-1. `IProjectionReadModelQueryStore<TReadModel, TKey>`：条件过滤、分页游标、多字段排序。
-2. `IProjectionRelationStore`：节点/边写入与基础邻接查询。
-3. `IProjectionRelationTraversalStore`：子图/路径遍历（可独立能力开关）。
-4. `IProjectionSchemaValidationCapability`：Schema 校验能力声明与执行入口。
-5. `IProjectionAliasCapability`：Alias 能力声明与执行入口。
-
-说明：
-1. 高级接口均为可选实现，不影响默认路径。
-2. 选择器根据 `Capabilities` 判定可用性，禁止运行时盲调。
-
-### 6.3 ReadModel Profile（模型声明式扩展）
-新增 `IReadModelProfile<TReadModel, TKey>`（示意职责，由业务方在组合层声明）：
-1. 声明模型索引类型要求（`Document/Graph`）。
-2. 声明关系能力要求（`RequiresRelations/RequiresTraversal`）。
-3. 声明默认排序（建议 `CreatedAt desc, UpdatedAt desc, Id desc`）。
-4. 声明关系节点/边 ID 规则。
-
-Profile 合并优先级：
-1. `GlobalDefault < ModelProfile < EnvironmentOverride`
-2. 只允许“收紧要求”，不允许“放松底线”。
-
-## 7. 关系模型重构（Relations）
-
-### 7.1 关系属性类型升级
-当前 `Dictionary<string,string>` 升级为可序列化值模型（示意）：
-1. `Dictionary<string, ProjectionValue>`
-2. `ProjectionValue` 支持 `string/number/bool/datetime/json`
-
-目标：
-1. 保持可移植序列化。
-2. 支持复杂过滤和排序。
-
-### 7.2 关系 ID 规则标准化
-统一规则：
-1. 节点 ID 必须包含业务隔离维度（如 `tenant`、`rootActorId`、`commandId`）。
-2. Step 节点强制包含 run 维度，禁止 `step:{rootActorId}:{stepId}` 这种会跨 run 冲突的格式。
-
-建议格式：
-1. `run:{rootActorId}:{commandId}`
-2. `step:{rootActorId}:{commandId}:{stepId}`
-
-### 7.3 关系查询分层
-1. 简单查询：邻居查询（默认 API）。
-2. 中级查询：有界深度子图。
-3. 高级查询：关系类型过滤 + 属性过滤 + 游标分页 + 路径约束（高级接口/高级端点）。
-
-## 8. Provider 分级策略（Simple -> Rich）
-
-说明：
-1. 本节模板由业务方在 Host/组合层应用。
-2. `Workflow` 层不读取、不判断 provider 类型；只通过抽象端口读写投影。
-
-### 8.1 环境模板
-1. `LocalDev`
-- ReadModel: `InMemory` 或 `Elasticsearch`
-- Relation: `InMemory`（仅开发）
-- 用途：快速反馈
-
-2. `Standard(Production)`
-- ReadModel: `Elasticsearch`
-- Relation: `Neo4j`
-- 用途：生产默认推荐，文档检索 + 图关系可用
-
-3. `DocOnly(Production)`
-- ReadModel: `Elasticsearch`
-- Relation: Disabled
-- 用途：不需要图关系的场景
-
-4. `GraphAdvanced(Production)`
-- ReadModel: `Neo4j` 或双写策略
-- Relation: `Neo4j`
-- 用途：高图密度业务
-
-### 8.2 强约束
-1. 生产环境禁止 `InMemoryRelationStore` 作为事实源（启动即失败）。
-2. 生产环境强制 `FailOnUnsupportedCapabilities=true`。
-3. 若启用关系 API，必须 `RequiresRelations=true` 且 relation provider 支持 traversal。
-
-## 9. Runtime 选择与校验重构
-
-### 9.1 选择流程
-1. 业务方在 Host 组合层提供 `GlobalReadModelOptions + ReadModelProfile`。
-2. Runtime 合并 `ReadModelProfile`。
-3. Runtime 应用 `EnvironmentPolicy`。
-4. Runtime 生成 `ProjectionReadModelRequirements`。
-5. Runtime 执行 `CapabilityValidator`。
-6. Runtime 选择 readmodel/relation provider。
-7. 启动校验（Host startup validator）在应用启动前 fail-fast。
-
-### 9.2 错误模型
-1. Provider 未指定且多注册：明确抛错。
-2. 能力不匹配：结构化异常包含 `requirements/capabilities/violations`。
-3. 生产策略违规（如 in-memory relation）：专用策略异常。
-
-## 10. Workflow 分层收敛
-
-### 10.1 基础抽象去 Workflow 语义
-1. 基类只保留 `CreatedAt/UpdatedAt`。
-2. `StartedAt/EndedAt` 保留在 `WorkflowExecutionReport`（领域模型）。
-
-### 10.2 Workflow 与 Provider 边界
-1. Workflow 只依赖：
-- `IProjectionReadModelStore`
-- `IProjectionRelationStore`
-2. Workflow 不包含：
-- `Graph/Document` 选择分支
-- `Elasticsearch/Neo4j/InMemory` provider 分支
-- capability 协商逻辑
-3. 若 provider 能力不匹配，由 Runtime/启动校验报错，不在 Workflow 内做兜底分支。
-
-### 10.3 Query 接口分层
-1. 基础端点保留：
-- `/actors/{actorId}`
-- `/actors/{actorId}/timeline`
-- `/actors/{actorId}/relations`
-- `/actors/{actorId}/relation-subgraph`
-
-2. 高级端点新增（可选）：
-- 支持 `direction`、`relationTypes`、`property filters`、`cursor`。
-- 这些是业务查询语义，不代表 Workflow 在做 provider/index kind 决策。
-
-### 10.4 投影职责
-1. ReadModelProjector：只负责文档视图。
-2. RelationProjector：只负责图事实写入。
-3. Coordinator：保持统一调度，不在 Workflow 层引入二次编排系统。
-
-## 11. 一致性与幂等策略
-
-### 11.1 默认模式（最终一致）
-1. ReadModel 和 Relation 独立写入。
-2. OCC + 去重保证单存储内正确性。
-
-### 11.2 强一致增强模式（可选）
-1. 引入 Projection Outbox（事件级写入意图记录）。
-2. 以 `eventId + projector` 作为幂等键。
-3. 使用 checkpoint/compensation 补偿部分成功。
-
-### 11.3 幂等键规则
-1. `dedupKey = {projectionId}:{eventId}:{projectorName}`
-2. relation edge upsert 使用确定性 edgeId，禁止随机 ID。
-
-## 12. 索引与排序策略
-
-### 12.1 默认排序
-1. 默认 `CreatedAt desc`
-2. 次排序 `UpdatedAt desc`
-3. 稳定 tie-break `Id desc`（或 `_id desc`）
-
-### 12.2 约束
-1. 任意 provider 的 `ListAsync` 必须提供稳定顺序保证。
-2. 若 provider 无法保证稳定排序，必须显式抛错，不允许“静默无序”。
-
-## 13. 配置模型重构
-
-### 13.1 配置分区
-1. `Projection:ReadModel:*`：业务方在 Host 组合层声明全局默认与 Provider 配置。
-2. `Projection:Policies:*`：环境策略（例如 production guard）。
-3. `Projection:Profiles:*`：按模型覆盖规则。
-
-### 13.2 配置示例（生产标准模板）
-
-```yaml
-Projection:
-  ReadModel:
-    Provider: Elasticsearch
-    RelationProvider: Neo4j
-    FailOnUnsupportedCapabilities: true
-    Bindings:
-      Aevatar.Workflow.Projection.ReadModels.WorkflowExecutionReport: Graph
-    Providers:
-      Elasticsearch:
-        Endpoints: ["http://elasticsearch:9200"]
-        IndexPrefix: "aevatar"
-        MissingIndexBehavior: Throw
-      Neo4j:
-        Uri: "bolt://neo4j:7687"
-        AutoCreateConstraints: true
-  Policies:
-    Environment: Production
-    DenyInMemoryRelationFactStore: true
-```
-
-## 14. 代码级重构清单（按层）
-
-### 14.1 Abstractions
-1. 新增 `ProjectionReadModelBase<TKey>`（或等价通用基类）。
-2. 新增 `IReadModelProfile<TReadModel, TKey>` 与 Profile 描述模型。
-3. 新增高级可选接口：Query/Traversal/Schema/Alias 能力接口。
-4. 升级关系属性类型定义，支持 typed value。
-
-### 14.2 Runtime
-1. 新增 Profile Registry + Requirements Builder。
-2. 新增 Policy Validator（环境策略校验）。
-3. 扩展 selector 日志，输出最终合并后的 requirements。
-
-### 14.3 Providers
-1. InMemory Provider 显式标注 `DevOnly` 元数据。
-2. Elasticsearch Provider 保持 Document 优先，明确高级查询能力边界。
-3. Neo4j Provider 承担 Relation + Traversal 主实现，并补齐 e2e 验证。
-
-### 14.4 Workflow
-1. 替换 Step 节点 ID 规则，纳入 `commandId` 维度。
-2. Query 只透传业务查询参数，不承载 provider/index kind 选择逻辑。
-3. 维持默认简单 API，不破坏使用门槛。
-
-## 15. 测试与门禁
-
-### 15.1 新增测试
-1. Profile 合并优先级测试（Global/Profile/Env）。
-2. 生产策略测试（禁止 InMemory Relation）。
-3. Relation Provider e2e（Neo4j）：
-- 节点/边 upsert
-- 邻居查询
-- 深度子图
-- 过滤/分页（若启用高级查询）
-4. Step 节点 ID 唯一性测试（跨 run 不冲突）。
-
-### 15.2 CI 门禁
-1. `tools/ci/architecture_guards.sh`：
-- 禁止基础抽象出现 Workflow 语义字段名。
-- 禁止中间层 `actor/run/session` 事实态字典字段。
-2. `tools/ci/projection_provider_e2e_smoke.sh`：
-- 增加 relation provider e2e 目标与 executed==total 校验。
-3. 生产配置扫描：
-- `Production + InMemoryRelationProvider` 直接 fail。
-
-## 16. 分阶段实施计划
-
-### Phase 1（基础抽象收敛）
-1. 引入通用基类与 Profile 抽象。
-2. 清理空类与无价值薄封装。
-3. 完成基础单测。
-
-### Phase 2（能力分层落地）
-1. 引入高级可选接口与 capability 路径。
-2. Runtime 增加 Profile+Policy 合并与校验。
-3. 保持默认调用路径不变。
-
-### Phase 3（Provider 与 Workflow 深化）
-1. Workflow Step ID 规则修复。
-2. 高级关系查询链路贯通（端口到 API）。
-3. Relation e2e 与生产策略门禁落地。
-
-### Phase 4（生产切换）
-1. 默认生产模板切至 `Elasticsearch + Neo4j`。
-2. 灰度启用高级查询能力。
-3. 观察指标与告警收敛。
-
-## 17. 可观测性与运维
-1. 指标：
-- provider selection failure
-- capability violation
-- relation query p95/p99
-- subgraph result size
-- OCC conflict retry count
-2. 日志：
-- 结构化输出 `requirements/capabilities/provider`
-3. 告警：
-- 生产策略违规配置
-- relation traversal error rate 超阈值
-
-## 18. 风险与应对
-1. 风险：高级能力接口扩展过快导致复杂度回升。
-- 应对：接口增量必须有真实场景和 e2e 覆盖。
-2. 风险：强一致模式引入写放大。
-- 应对：默认保持最终一致，按域开启强一致。
-3. 风险：Provider 能力声明与实现漂移。
-- 应对：能力声明一致性测试 + 启动期校验 + e2e。
-
-## 19. 验收标准（DoD）
-1. 默认开发路径只需 ReadModel + Reducer 即可运行。
-2. 复杂能力通过 Profile/Policy 可启用且受校验治理。
-3. 基础抽象不含 Workflow 语义字段（仅通用元数据）。
-4. 生产标准模板不允许 InMemory Relation 事实源。
-5. Workflow 代码中不存在 provider/index kind 选择分支。
-6. Relation e2e + 架构门禁 + 全量 build/test 通过。
-
-## 20. 结论
-本方案通过“默认极简 + 能力插件 + 治理前置”实现双速架构：
-1. 让大多数开发者保持低认知成本。
-2. 让复杂需求获得可扩展、可验证、可运维的高级能力。
-3. 避免抽象层次倒挂和语义污染，维持长期演进质量。
diff --git a/src/Aevatar.AI.Projection/GlobalUsings.cs b/src/Aevatar.AI.Projection/GlobalUsings.cs
index 1d58e7bdb..b3efef5dd 100644
--- a/src/Aevatar.AI.Projection/GlobalUsings.cs
+++ b/src/Aevatar.AI.Projection/GlobalUsings.cs
@@ -1,2 +1,2 @@
-global using Aevatar.CQRS.Projection.Abstractions;
+global using Aevatar.CQRS.Projection.Core.Abstractions;
 global using Aevatar.Foundation.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionClock.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionClock.cs
index 400358364..567976163 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionClock.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionClock.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Provides current UTC time for projection runtime.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionContext.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionContext.cs
index 08d2d5368..f0307f837 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionContext.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionContext.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Generic projection context contract.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionRuntimeOptions.cs
index 87af1a043..92393e048 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionRuntimeOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionRuntimeOptions.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Runtime switches for projection lifecycle and query/report capabilities.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionStreamSubscriptionContext.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionStreamSubscriptionContext.cs
index 71a685781..7060f625f 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionStreamSubscriptionContext.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionStreamSubscriptionContext.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Projection context that carries its stream subscription lease.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionCoordinator.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionCoordinator.cs
index 402f7ede6..e26c62c86 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionCoordinator.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionCoordinator.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Generic coordinator contract for projection pipeline lifecycle.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatchFailureReporter.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatchFailureReporter.cs
index bd72b5ae5..3ce5d7126 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatchFailureReporter.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatchFailureReporter.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Reports projection dispatch failures to an upstream channel.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatcher.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatcher.cs
index a78ddd731..abe09b979 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatcher.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatcher.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Unified projection dispatch entry for one envelope.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventApplier.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventApplier.cs
index e28bc49ea..35f473938 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventApplier.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventApplier.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Applies one strongly-typed event onto one read model.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventReducer.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventReducer.cs
index 428a1b084..a838522d7 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventReducer.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventReducer.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Generic reducer contract for projecting one event envelope into one read model.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionLifecycleService.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionLifecycleService.cs
index 57af8e678..3654ed95e 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionLifecycleService.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionLifecycleService.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Generic projection lifecycle service.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionOwnershipCoordinator.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionOwnershipCoordinator.cs
index e171ea8b2..18839f0ea 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionOwnershipCoordinator.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionOwnershipCoordinator.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Coordinates projection ownership arbitration by scope/session key.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionProjector.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionProjector.cs
index 174f24889..26b502d1a 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionProjector.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionProjector.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Generic projector contract for applying envelopes to one projection context.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionSubscriptionRegistry.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionSubscriptionRegistry.cs
index 33312ce58..996f11d67 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionSubscriptionRegistry.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionSubscriptionRegistry.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Generic registry for actor-level projection subscription lifecycle.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortActivationService.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortActivationService.cs
index 407ade9c0..79abfc4d9 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortActivationService.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortActivationService.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Generic activation contract for projection runtime lease acquisition.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortLiveSinkForwarder.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortLiveSinkForwarder.cs
index 14129a60b..13cc81639 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortLiveSinkForwarder.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortLiveSinkForwarder.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Generic forwarder contract for projection runtime events to external sinks.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortReleaseService.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortReleaseService.cs
index 689c66054..18cf57ed7 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortReleaseService.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortReleaseService.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Generic release contract for projection runtime lease lifecycle.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortSinkSubscriptionManager.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortSinkSubscriptionManager.cs
index 3332fcbc5..84553938e 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortSinkSubscriptionManager.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortSinkSubscriptionManager.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Generic sink subscription manager for projection live-stream delivery.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionHub.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionHub.cs
index 7cdcd53db..a2ec5872c 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionHub.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionHub.cs
@@ -1,6 +1,6 @@
 using Google.Protobuf;
 
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Shared actor-stream subscription hub that creates per-handler subscriptions
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionLease.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionLease.cs
index 86e76f53c..6196187a5 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionLease.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionLease.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Lease handle for one actor stream subscription.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventCodec.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventCodec.cs
index b551969b0..edb821ee6 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventCodec.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventCodec.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Encodes and decodes projection session events for stream transport.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventHub.cs b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventHub.cs
index fc2b1b5b0..d7ddc925b 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventHub.cs
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventHub.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Core.Abstractions;
 
 /// <summary>
 /// Publishes and subscribes projection session events by scope/session key.
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/Aevatar.CQRS.Projection.Core.Abstractions.csproj b/src/Aevatar.CQRS.Projection.Core.Abstractions/Aevatar.CQRS.Projection.Core.Abstractions.csproj
index 395670a6a..7f1facde5 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/Aevatar.CQRS.Projection.Core.Abstractions.csproj
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/Aevatar.CQRS.Projection.Core.Abstractions.csproj
@@ -4,7 +4,7 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <AssemblyName>Aevatar.CQRS.Projection.Core.Abstractions</AssemblyName>
-    <RootNamespace>Aevatar.CQRS.Projection.Abstractions</RootNamespace>
+    <RootNamespace>Aevatar.CQRS.Projection.Core.Abstractions</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Aevatar.Foundation.Abstractions\Aevatar.Foundation.Abstractions.csproj" />
diff --git a/src/Aevatar.CQRS.Projection.Core/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Core/GlobalUsings.cs
index 1d58e7bdb..b3efef5dd 100644
--- a/src/Aevatar.CQRS.Projection.Core/GlobalUsings.cs
+++ b/src/Aevatar.CQRS.Projection.Core/GlobalUsings.cs
@@ -1,2 +1,2 @@
-global using Aevatar.CQRS.Projection.Abstractions;
+global using Aevatar.CQRS.Projection.Core.Abstractions;
 global using Aevatar.Foundation.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs b/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs
index d6f2f4132..de399d1a1 100644
--- a/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs
+++ b/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Foundation.Abstractions.TypeSystem;
 using Google.Protobuf;
 using Google.Protobuf.WellKnownTypes;
diff --git a/src/Aevatar.CQRS.Projection.Core/Streaming/ProjectionSessionEventHub.cs b/src/Aevatar.CQRS.Projection.Core/Streaming/ProjectionSessionEventHub.cs
index 7e2d712e5..5fdfb7be1 100644
--- a/src/Aevatar.CQRS.Projection.Core/Streaming/ProjectionSessionEventHub.cs
+++ b/src/Aevatar.CQRS.Projection.Core/Streaming/ProjectionSessionEventHub.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 
 namespace Aevatar.CQRS.Projection.Core.Streaming;
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs
index b07fa3dbd..16f01928e 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs
@@ -1 +1 @@
-global using Aevatar.CQRS.Projection.Abstractions;
+global using Aevatar.CQRS.Projection.Stores.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs
index b07fa3dbd..16f01928e 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs
@@ -1 +1 @@
-global using Aevatar.CQRS.Projection.Abstractions;
+global using Aevatar.CQRS.Projection.Stores.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs
index b07fa3dbd..16f01928e 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs
@@ -1 +1 @@
-global using Aevatar.CQRS.Projection.Abstractions;
+global using Aevatar.CQRS.Projection.Stores.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs
index b07fa3dbd..16f01928e 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs
@@ -1 +1 @@
-global using Aevatar.CQRS.Projection.Abstractions;
+global using Aevatar.CQRS.Projection.Stores.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
index 1ac20a2f7..6a6045656 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class DelegateProjectionStoreRegistration<TStore> : IProjectionStoreRegistration<TStore>
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs
index e78e4a136..39230890b 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionStoreProviderMetadata
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
index 25dd5989c..3d1048a5e 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionStoreRegistration
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs
index 61630e519..0ac47587d 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionReadModelBindingResolver
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelCapabilityValidator.cs
index c18b16f62..233f9c348 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelCapabilityValidator.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelCapabilityValidator.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionReadModelCapabilityValidator
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderRegistry.cs
index b225d9190..b127038b4 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderRegistry.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderRegistry.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionReadModelProviderRegistry
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderSelector.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderSelector.cs
index 290401c87..c8beba36c 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderSelector.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionReadModelProviderSelector
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs
index 94bade5d0..994c0a730 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 /// <summary>
 /// Generic read-model store contract for projection state persistence/query.
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStoreFactory.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStoreFactory.cs
index 4d7e88640..21d30fac8 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStoreFactory.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionReadModelStoreFactory
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelBindingException.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelBindingException.cs
index f43b5efef..9492a0d4b 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelBindingException.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelBindingException.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionReadModelBindingException : InvalidOperationException
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidationException.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidationException.cs
index 290ee852b..ec99e02cf 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidationException.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidationException.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionReadModelCapabilityValidationException : InvalidOperationException
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs
index c03febeca..92fdb3d3c 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public static class ProjectionReadModelCapabilityValidator
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelIndexKind.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelIndexKind.cs
index bfc18fc2c..8f1c61aef 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelIndexKind.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelIndexKind.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public enum ProjectionReadModelIndexKind
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelMode.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelMode.cs
index c6fcbdacc..0ed8be4fe 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelMode.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelMode.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public enum ProjectionReadModelMode
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderCapabilities.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderCapabilities.cs
index fd7721284..9f97f6356 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderCapabilities.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderCapabilities.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionReadModelProviderCapabilities
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderNames.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderNames.cs
index 3f3aef17e..bee736261 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderNames.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderNames.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public static class ProjectionReadModelProviderNames
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs
index 7b5d7a75b..3a17d6527 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionReadModelRequirements
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs
index d141e0efa..ad8f60b93 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionReadModelRuntimeOptions : IProjectionStoreSelectionRuntimeOptions
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelectionOptions.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelectionOptions.cs
index f144b3e72..15cb74b61 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelectionOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelectionOptions.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionReadModelStoreSelectionOptions
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs
index f9d453420..3a1a5c8ff 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public static class ProjectionReadModelStoreSelector
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs
index d792b7969..ae32579ca 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionRelationStore
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreFactory.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreFactory.cs
index d07980700..ad2169f58 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreFactory.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionRelationStoreFactory
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs
index 57c07d906..38ab2e4f0 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionRelationStoreProviderRegistry
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderSelector.cs
index 8770d5b2a..868c36add 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderSelector.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionRelationStoreProviderSelector
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationDirection.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationDirection.cs
index 681c0ff70..7acbeef1a 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationDirection.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationDirection.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public enum ProjectionRelationDirection
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationEdge.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationEdge.cs
index 9272a0cf7..13f0b8ca8 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationEdge.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationEdge.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionRelationEdge
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationNode.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationNode.cs
index f8978e67b..6d7304aa7 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationNode.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationNode.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionRelationNode
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationQuery.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationQuery.cs
index a1f20d155..5bbe45c7b 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationQuery.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationQuery.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionRelationQuery
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs
index f879d3d47..d73c16533 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionRelationSubgraph
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
index 57bf0a36f..6021e7fc1 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionStoreSelectionPlanner
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
index 85cc8147f..9240b26f4 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionStoreSelectionRuntimeOptions
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
index 8486ebcdf..c7536b985 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionStoreStartupValidator
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
index 93b470eb7..abd131a43 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionProviderSelectionException : InvalidOperationException
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
index 93f5fdf27..49e3fa131 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public readonly record struct ProjectionStoreSelectionPlan(
     ProjectionReadModelRequirements ReadModelRequirements,
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
index e40d52f71..e76c8ee8f 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Abstractions;
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public static class ProjectionStoreSelector
 {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Aevatar.CQRS.Projection.Stores.Abstractions.csproj b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Aevatar.CQRS.Projection.Stores.Abstractions.csproj
index 93e4f3e64..0216e5f63 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Aevatar.CQRS.Projection.Stores.Abstractions.csproj
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Aevatar.CQRS.Projection.Stores.Abstractions.csproj
@@ -4,6 +4,6 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <AssemblyName>Aevatar.CQRS.Projection.Stores.Abstractions</AssemblyName>
-    <RootNamespace>Aevatar.CQRS.Projection.Abstractions</RootNamespace>
+    <RootNamespace>Aevatar.CQRS.Projection.Stores.Abstractions</RootNamespace>
   </PropertyGroup>
 </Project>
diff --git a/src/workflow/Aevatar.Workflow.Presentation.AGUIAdapter/WorkflowExecutionAGUIEventProjector.cs b/src/workflow/Aevatar.Workflow.Presentation.AGUIAdapter/WorkflowExecutionAGUIEventProjector.cs
index 4451fdb89..a40051bbf 100644
--- a/src/workflow/Aevatar.Workflow.Presentation.AGUIAdapter/WorkflowExecutionAGUIEventProjector.cs
+++ b/src/workflow/Aevatar.Workflow.Presentation.AGUIAdapter/WorkflowExecutionAGUIEventProjector.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Workflow.Projection;
 using Aevatar.Workflow.Projection.Orchestration;
 using Aevatar.Workflow.Projection.ReadModels;
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index 8830a00dc..ee421bc71 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Workflow.Projection.Configuration;
 using Aevatar.Workflow.Projection.Orchestration;
 using Aevatar.Workflow.Projection.ReadModels;
diff --git a/src/workflow/Aevatar.Workflow.Projection/GlobalUsings.cs b/src/workflow/Aevatar.Workflow.Projection/GlobalUsings.cs
index 753f48b1d..263294b8a 100644
--- a/src/workflow/Aevatar.Workflow.Projection/GlobalUsings.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/GlobalUsings.cs
@@ -1,4 +1,5 @@
-global using Aevatar.CQRS.Projection.Abstractions;
+global using Aevatar.CQRS.Projection.Core.Abstractions;
+global using Aevatar.CQRS.Projection.Stores.Abstractions;
 global using Aevatar.Workflow.Projection.ReadModels;
 global using Aevatar.Foundation.Abstractions;
 global using Aevatar.Workflow.Abstractions;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs
index eb487dd04..6d056f3d6 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs
index 2b8b9c228..5705aeab1 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs
@@ -1,5 +1,5 @@
 using Aevatar.Workflow.Application.Abstractions.Runs;
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs
index df7a43274..e8446ba2f 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs
index d0e5192b5..5a908e31f 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs
@@ -1,5 +1,5 @@
 using Aevatar.Workflow.Application.Abstractions.Runs;
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionActivationService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionActivationService.cs
index c1206d3db..5f183d7a7 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionActivationService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionActivationService.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchFailureReporter.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchFailureReporter.cs
index bb7fc160f..30f2822f8 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchFailureReporter.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchFailureReporter.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Workflow.Application.Abstractions.Runs;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReleaseService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReleaseService.cs
index 89c783db1..2ec9277ec 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReleaseService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReleaseService.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index 36b8ee605..077ebe3b5 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Workflow.Projection.Configuration;
 using Aevatar.Workflow.Projection.ReadModels;
 using Microsoft.Extensions.Hosting;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowRunEventSessionCodec.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowRunEventSessionCodec.cs
index e0e1bd1cc..304242d8d 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowRunEventSessionCodec.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowRunEventSessionCodec.cs
@@ -1,5 +1,5 @@
 using System.Text.Json;
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Workflow.Application.Abstractions.Runs;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index e2cf5b76c..8c35b0680 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -3,7 +3,8 @@
 using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
 using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
+using Aevatar.CQRS.Projection.Stores.Abstractions;
 using Aevatar.Workflow.Projection.ReadModels;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/GlobalUsings.cs b/test/Aevatar.CQRS.Projection.Core.Tests/GlobalUsings.cs
index 49e524e9b..0c3254ec5 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/GlobalUsings.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/GlobalUsings.cs
@@ -1,3 +1,4 @@
 global using Xunit;
 global using Aevatar.Foundation.Abstractions;
-global using Aevatar.CQRS.Projection.Abstractions;
+global using Aevatar.CQRS.Projection.Core.Abstractions;
+global using Aevatar.CQRS.Projection.Stores.Abstractions;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/GlobalUsings.cs b/test/Aevatar.Workflow.Host.Api.Tests/GlobalUsings.cs
index 2e4ed57b2..cef2ea8fb 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/GlobalUsings.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/GlobalUsings.cs
@@ -1,4 +1,6 @@
 global using Aevatar.AI.Abstractions;
+global using Aevatar.CQRS.Projection.Core.Abstractions;
+global using Aevatar.CQRS.Projection.Stores.Abstractions;
 global using Aevatar.Foundation.Abstractions;
 global using Aevatar.Workflow.Abstractions;
 global using Xunit;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/ProjectionCoordinatorTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/ProjectionCoordinatorTests.cs
index d555ed2c7..e98a3b0c5 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/ProjectionCoordinatorTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/ProjectionCoordinatorTests.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.CQRS.Projection.Core.Orchestration;
 using Aevatar.Foundation.Abstractions;
 using FluentAssertions;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionContextTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionContextTests.cs
index d0426a7fd..9cbf17623 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionContextTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionContextTests.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Workflow.Projection;
 using FluentAssertions;
 
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 94906a4bf..493d39780 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
index e75913469..b000f6a4d 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
@@ -1,6 +1,6 @@
 using Aevatar.AI.Projection.Reducers;
 using Aevatar.AI.Projection.Appliers;
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.CQRS.Projection.Core.Orchestration;
 using Aevatar.CQRS.Projection.Core.Streaming;
 using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
index a3f05b978..cab5c203a 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
@@ -1,6 +1,6 @@
 using Aevatar.AI.Projection.Reducers;
 using Aevatar.AI.Projection.Appliers;
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.CQRS.Projection.Core.Orchestration;
 using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 using Aevatar.Foundation.Abstractions.Deduplication;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs
index 353c44825..e0061e721 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 using Aevatar.Workflow.Core;
 using Aevatar.Workflow.Projection;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index dadfb3ea8..b24e322f2 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -2,7 +2,7 @@
 using Aevatar.AI.Abstractions.ToolProviders;
 using Aevatar.AI.ToolProviders.MCP;
 using Aevatar.AI.ToolProviders.Skills;
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Workflow.Application.Abstractions;
 using Aevatar.Workflow.Application.Abstractions.Runs;
 using Aevatar.Workflow.Application.Runs;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionDispatchFailureReporterTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionDispatchFailureReporterTests.cs
index 3be8263e7..178823017 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionDispatchFailureReporterTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionDispatchFailureReporterTests.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Workflow.Application.Abstractions.Runs;
 using Aevatar.Workflow.Projection;
 using Aevatar.Workflow.Projection.Orchestration;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
index f977e9f02..dbf88f5c4 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
@@ -1,4 +1,4 @@
-using Aevatar.CQRS.Projection.Abstractions;
+using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 using Aevatar.Workflow.Application.Abstractions.Runs;
 using Aevatar.Workflow.Projection;

From cae5229c5c37a36b2b6ff2afa3713ef16bc0d022 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Tue, 24 Feb 2026 22:31:58 +0800
Subject: [PATCH 26/46] Remove Deprecated Audit Scorecard Documents

- Deleted outdated audit scorecard documents for Projection ReadModel, ReadModel Index, and Workflow subsolution to streamline the documentation and maintain focus on current architecture evaluations.
- Ensured that the removal aligns with the ongoing refactoring efforts and the transition to updated scorecard formats, enhancing overall documentation clarity and relevance.
---
 ...ojection-readmodel-scorecard-2026-02-23.md | 109 ---------------
 .../readmodel-index-scorecard-2026-02-24.md   | 110 ---------------
 ...rkflow-subsolution-scorecard-2026-02-21.md | 125 ------------------
 3 files changed, 344 deletions(-)
 delete mode 100644 docs/audit-scorecard/projection-readmodel-scorecard-2026-02-23.md
 delete mode 100644 docs/audit-scorecard/readmodel-index-scorecard-2026-02-24.md
 delete mode 100644 docs/audit-scorecard/workflow-subsolution-scorecard-2026-02-21.md

diff --git a/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-23.md b/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-23.md
deleted file mode 100644
index 0ce9bce6d..000000000
--- a/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-23.md
+++ /dev/null
@@ -1,109 +0,0 @@
-# Aevatar Projection ReadModel 架构评分卡（2026-02-23，重评终版）
-
-## 1. 审计范围与方法
-
-1. 审计对象：Projection ReadModel 主链路（Abstractions + Runtime + Providers + Workflow 集成 + CI 门禁）。
-2. 评分规范：`docs/audit-scorecard/README.md`（100 分模型，6 维度）。
-3. 证据来源：当前分支源码、CI 脚本、定向命令实跑结果（重构后复核）。
-
-## 2. 审计边界
-
-1. 抽象与能力模型：  
-`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/IProjectionReadModelStore.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs`。
-2. Runtime 选择与装配：  
-`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs`、`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs`、`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs`。
-3. Provider 实现：  
-`src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs`、`src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs`、`src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs`。
-4. Workflow 读侧集成：  
-`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs`、`src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs`、`src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs`。
-5. CI 与治理：  
-`tools/ci/architecture_guards.sh`、`tools/ci/projection_route_mapping_guard.sh`、`tools/ci/projection_provider_e2e_smoke.sh`、`.github/workflows/ci.yml`。
-
-## 3. Projection ReadModel 主链
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-    A["Host Wiring"] --> B["AddWorkflowProjectionReadModelProviders"]
-    B --> C["AddWorkflowExecutionProjectionCQRS"]
-    C --> D["WorkflowReadModelSelectionPlanner.Build"]
-    D --> E["ProjectionReadModelStoreFactory.Create"]
-    E --> F["ProviderRegistry.GetRegistrations"]
-    E --> G["ProviderSelector.Select"]
-    G --> H["ProjectionReadModelStoreSelector.Select"]
-    H --> I["Selected Registration.Create Store"]
-    I --> J["WorkflowExecutionReadModelProjector"]
-    J --> K["UpsertAsync / MutateAsync"]
-    C --> L["ActorProjectionOwnershipCoordinator"]
-    L --> M["WorkflowExecutionRuntimeLease"]
-```
-
-## 4. 客观验证结果（重评复核）
-
-| 检查项 | 命令 | 结果 |
-|---|---|---|
-| 架构门禁（含 route mapping） | `bash tools/ci/architecture_guards.sh` | 通过（`Architecture guards passed.`） |
-| 路由映射专项门禁 | `bash tools/ci/projection_route_mapping_guard.sh` | 通过（`Projection route-mapping guard passed.`） |
-| Provider E2E 烟雾回归（容器 + 完整执行校验） | `bash tools/ci/projection_provider_e2e_smoke.sh` | 通过（2 passed / 0 skipped，`total=2 executed=2`） |
-| Projection Core 定向回归 | `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo --filter "FullyQualifiedName~ProjectionReadModelRuntimeTests|FullyQualifiedName~ProjectionReadModelStoreSelectorTests|FullyQualifiedName~ProjectionProviderE2EIntegrationTests"` | 通过（8 passed / 0 failed / 2 skipped） |
-| Workflow Host 定向回归 | `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo --filter "FullyQualifiedName~WorkflowExecutionProjectionRegistrationTests|FullyQualifiedName~WorkflowReadModelSelectionPlannerTests"` | 通过（20 passed / 0 failed / 0 skipped） |
-
-## 5. 整体评分（100 分制）
-
-**总分：100 / 100（A+）**
-
-| 维度 | 权重 | 得分 | 评分依据 |
-|---|---:|---:|---|
-| 分层与依赖反转 | 20 | 20 | 选择、能力校验、存储实现、业务集成边界明确；上层依赖抽象。 |
-| CQRS 与统一投影链路 | 20 | 20 | Workflow/AGUI 共用统一投影输入链路，ReadModel 入口已收敛到统一 Provider 选择链。 |
-| Projection 编排与状态约束 | 20 | 20 | ownership actor 化，lease/session 句柄传递，无中间层事实态 ID 映射字典。 |
-| 读写分离与会话语义 | 15 | 15 | `Projector/Updater` 写、`QueryReader` 读，应用层仅经 projection port 访问。 |
-| 命名语义与冗余清理 | 10 | 10 | 已消除双实现/重复规则，命名与职责保持一致。 |
-| 可验证性（门禁/构建/测试） | 15 | 15 | guards + route-mapping + provider e2e（含执行完整性校验）形成闭环。 |
-
-## 6. 分模块评分
-
-| 模块 | 得分 | 结论 |
-|---|---:|---|
-| Abstractions（契约/能力模型） | 100 | 单一权威选择器 + 结构化异常，契约稳定清晰。 |
-| Runtime（选择/绑定/工厂） | 100 | Runtime 复用权威选择逻辑并增强日志，避免语义分叉。 |
-| Provider（InMemory/ES/Neo4j） | 100 | 能力声明一致，写路径日志门禁到位，e2e 烟雾验证通过。 |
-| Workflow 集成（DI/Projector/Orchestration） | 100 | ReadModel 规划规则统一，DI 与启动校验一致。 |
-| CI + Guards（治理） | 100 | 触发路径覆盖补齐，provider e2e 执行完整性可机器验证。 |
-
-## 7. 关键证据（终版）
-
-1. 统一选择权威入口：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs:5`。
-2. 选择失败采用结构化异常：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs:20`。
-3. Runtime selector 复用权威选择器：`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs:32`。
-4. Runtime 能力校验失败日志：`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs:44`。
-5. Workflow 统一规划器接口：`src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowReadModelSelectionPlanner.cs:10`。
-6. Workflow 规划器统一 provider/mode/binding 规则：`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs:16`。
-7. DI 解析链路复用规划器：`src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs:127`。
-8. Startup 校验链路复用规划器：`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs:41`。
-9. CI 触发范围补齐（Workflow projection/provider 装配路径）：`.github/workflows/ci.yml:47`。
-10. Provider e2e 强制完整执行校验：`tools/ci/projection_provider_e2e_smoke.sh:81`。
-11. Selector 语义回归测试：`test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs:24`。
-12. 规划器语义回归测试：`test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs:15`。
-
-## 8. 问题闭环状态（相对上一版）
-
-1. 已关闭：Provider 选择双实现语义漂移风险（改为单一权威选择逻辑）。
-2. 已关闭：Workflow ReadModel 规则在 DI/Startup 双处重复维护问题（改为统一规划器）。
-3. 已关闭：CI `projection_provider` 变更筛选漏覆盖 Workflow 装配路径问题。
-4. 已关闭：Provider e2e 仅依赖 skip 语义导致“假通过”风险（新增 TRX 完整执行校验）。
-
-## 9. 主要扣分项
-
-### P1
-
-1. 无。
-
-### P2
-
-1. 无。
-
-## 10. 后续建议（非扣分）
-
-1. 将 `projection_provider_e2e` 的 `total/executed/notExecuted` 指标上报到 CI summary，便于趋势观测。
-2. 为 Provider e2e 增加失败时自动抓取容器关键日志，提升诊断效率。
diff --git a/docs/audit-scorecard/readmodel-index-scorecard-2026-02-24.md b/docs/audit-scorecard/readmodel-index-scorecard-2026-02-24.md
deleted file mode 100644
index d7511b3da..000000000
--- a/docs/audit-scorecard/readmodel-index-scorecard-2026-02-24.md
+++ /dev/null
@@ -1,110 +0,0 @@
-# Aevatar ReadModel Index 架构评分卡（2026-02-24，专项审计）
-
-## 1. 审计范围与方法
-
-1. 审计对象：ReadModel Index 选择与校验主链（Bindings -> Requirements -> Provider Capabilities -> Runtime Selection -> Provider Store）。
-2. 评分规范：`docs/audit-scorecard/README.md`（100 分模型，6 维度）。
-3. 证据来源：当前分支源码、CI 脚本、专项命令实跑结果（2026-02-24）。
-
-## 2. 审计边界
-
-1. Index 抽象与约束：
-`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelIndexKind.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs`。
-2. Runtime 绑定与选择：
-`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs`、`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs`、`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs`、`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs`。
-3. Provider capability 声明与索引实现：
-`src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs`、`src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs`、`src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs`、`src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs`、`src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs`。
-4. Workflow 接入与启动校验：
-`src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`、`src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs`、`src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`。
-5. CI 与门禁：
-`.github/workflows/ci.yml`、`tools/ci/architecture_guards.sh`、`tools/ci/projection_route_mapping_guard.sh`、`tools/ci/projection_provider_e2e_smoke.sh`。
-
-## 3. ReadModel Index 主链
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-    A["Projection:ReadModel:Bindings"] --> B["ApplyGlobalReadModelOptions"]
-    B --> C["WorkflowReadModelSelectionPlanner.Build"]
-    C --> D["ProjectionReadModelBindingResolver.Resolve"]
-    D --> E["ProjectionReadModelRequirements(RequiredIndexKinds)"]
-    C --> F["ProjectionReadModelStoreFactory.Create"]
-    F --> G["ProjectionReadModelProviderSelector.Select"]
-    G --> H["ProjectionReadModelStoreSelector.Select"]
-    H --> I["ProjectionReadModelCapabilityValidator.Validate"]
-    I --> J["ProviderCapabilities(IndexKinds/Aliases/Schema)"]
-    J --> K["Selected ReadModel Store"]
-    C --> L["WorkflowReadModelStartupValidationHostedService"]
-    L --> G
-```
-
-## 4. 客观验证结果（2026-02-24）
-
-| 检查项 | 命令 | 结果 |
-|---|---|---|
-| 架构门禁（含 route mapping） | `bash tools/ci/architecture_guards.sh` | 通过（`Architecture guards passed.`） |
-| 路由映射专项门禁 | `bash tools/ci/projection_route_mapping_guard.sh` | 通过（`Projection route-mapping guard passed.`） |
-| Projection Core 定向回归 | `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo --filter "FullyQualifiedName~ProjectionReadModelRuntimeTests|FullyQualifiedName~ProjectionReadModelStoreSelectorTests|FullyQualifiedName~ProjectionProviderE2EIntegrationTests"` | 通过（8 passed / 0 failed / 2 skipped） |
-| Workflow Host 定向回归 | `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo --filter "FullyQualifiedName~WorkflowExecutionProjectionRegistrationTests|FullyQualifiedName~WorkflowReadModelSelectionPlannerTests"` | 通过（20 passed / 0 failed / 0 skipped） |
-| Provider E2E 烟雾（容器 + TRX 全执行校验） | `bash tools/ci/projection_provider_e2e_smoke.sh` | 通过（2 passed / 0 skipped，`total=2 executed=2`） |
-
-## 5. 整体评分（100 分制）
-
-**总分：100 / 100（A+）**
-
-| 维度 | 权重 | 得分 | 评分依据 |
-|---|---:|---:|---|
-| 分层与依赖反转 | 20 | 20 | Index 需求建模、选择器、Provider 注册和 Workflow 规划边界清晰，上层统一依赖抽象接口。 |
-| CQRS 与统一投影链路 | 20 | 20 | ReadModel Index 需求从统一 `Projection:ReadModel` 入口注入，链路无平行第二实现。 |
-| Projection 编排与状态约束 | 20 | 20 | Index 选择由 runtime selector + startup validation 承担，无中间层事实态映射字典。 |
-| 读写分离与会话语义 | 15 | 15 | Index 仅约束读侧存储能力，不污染命令/事件写侧语义。 |
-| 命名语义与冗余清理 | 10 | 10 | `IndexKind/Requirements/Capabilities` 语义一致，异常模型结构化。 |
-| 可验证性（门禁/构建/测试） | 15 | 15 | guards + 定向测试 + provider e2e（含 executed=total）形成闭环。 |
-
-## 6. 分模块评分
-
-| 模块 | 得分 | 结论 |
-|---|---:|---|
-| Abstractions（Index 语义模型） | 100 | `Requirements/Capabilities/Validator` 三件套语义闭环，约束表达完整。 |
-| Runtime（绑定解析 + 选择 + 工厂） | 100 | 绑定到需求、需求到选择、选择到实例化全链路统一。 |
-| Providers（InMemory/Elasticsearch/Neo4j） | 100 | 能力声明与实际索引实现对齐，Document/Graph 分工明确。 |
-| Workflow 集成（配置/规划/启动校验） | 100 | 全局配置覆盖业务 options，启动期即可 fail-fast 暴露能力错配。 |
-| CI + Guards（治理） | 100 | path filter、门禁脚本、容器化 e2e 及执行完整性检查都已覆盖。 |
-
-## 7. 关键证据
-
-1. Index 枚举统一语义：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelIndexKind.cs:3`。
-2. Requirements 去除 `None` 并标准化集合：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelRequirements.cs:18`。
-3. Capabilities 禁止“未开启索引却声明索引种类”：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelProviderCapabilities.cs:27`。
-4. Capability validator 对 `RequiredIndexKinds` 执行约束：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelCapabilityValidator.cs:17`。
-5. 统一权威选择器入口：`src/Aevatar.CQRS.Projection.Abstractions/Abstractions/ProjectionReadModelStoreSelector.cs:5`。
-6. Runtime selector 复用权威选择器并记录结构化日志：`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs:32`。
-7. Binding 仅允许 `Document/Graph`，非法配置抛结构化异常：`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs:15`。
-8. InMemory 明确声明 `supportsIndexing: false`：`src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs:23`。
-9. Elasticsearch 声明 `Document` 能力：`src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs:29`。
-10. Neo4j 声明 `Graph` 能力：`src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs:29`。
-11. Elasticsearch Store 能力元数据与写链路：`src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs:353`。
-12. Neo4j Store 能力元数据与 schema 约束初始化：`src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs:58`。
-13. 全局 `Projection:ReadModel` 配置映射到 Workflow options：`src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs:41`。
-14. Workflow 规划器统一 provider + bindings -> selection plan：`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelSelectionPlanner.cs:16`。
-15. 启动期预校验 provider 能力：`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs:41`。
-16. CI 路径筛选覆盖 projection provider 与 workflow 装配路径：`.github/workflows/ci.yml:47`。
-17. Provider e2e 必须 `executed == total`：`tools/ci/projection_provider_e2e_smoke.sh:90`。
-18. Runtime/selector 回归测试覆盖索引能力选择：`test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs:9`、`test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs:62`。
-19. Workflow 集成测试覆盖 index 约束 fail-fast：`test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs:41`。
-20. Planner 测试覆盖 binding 解析与 provider 归一化：`test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelSelectionPlannerTests.cs:15`。
-
-## 8. 主要扣分项
-
-### P1
-
-1. 无。
-
-### P2
-
-1. 无。
-
-## 9. 后续建议（非扣分）
-
-1. 增加 “binding 值大小写/非法空白” 的参数化测试，进一步收紧配置输入面。
-2. 在 CI summary 输出 `projection_provider_e2e` 的 `total/executed/notExecuted` 指标，便于趋势跟踪。
diff --git a/docs/audit-scorecard/workflow-subsolution-scorecard-2026-02-21.md b/docs/audit-scorecard/workflow-subsolution-scorecard-2026-02-21.md
deleted file mode 100644
index a64a0ab27..000000000
--- a/docs/audit-scorecard/workflow-subsolution-scorecard-2026-02-21.md
+++ /dev/null
@@ -1,125 +0,0 @@
-# Aevatar Workflow 子解决方案评分卡（2026-02-21，增量复核）
-
-## 1. 审计范围与方法
-
-1. 审计对象：`aevatar.workflow.slnf`（单一子解决方案）。
-2. 评分规范：`docs/audit-scorecard/README.md`（100 分模型，6 维度）。
-3. 证据来源：`slnf/csproj` 依赖、核心编排源码、测试源码、CI guard、本地命令结果。
-
-## 2. 子解决方案组成
-
-`aevatar.workflow.slnf` 覆盖 Workflow 主干（`Core/Application/Projection/Infrastructure/Host`）、扩展（AIProjection/Hosting/Maker）与 3 个测试项目。  
-证据：`aevatar.workflow.slnf`。
-
-## 3. 相关源码架构分析
-
-### 3.1 分层与依赖方向
-
-1. `Core` 保持领域编排职责（`WorkflowGAgent`、模块工厂），无 Host/Infrastructure 反向耦合。  
-证据：`src/workflow/Aevatar.Workflow.Core/WorkflowGAgent.cs`、`src/workflow/Aevatar.Workflow.Core/WorkflowModuleFactory.cs`。
-2. `Application` 依赖抽象层与基础能力，保持上层依赖抽象。  
-证据：`src/workflow/Aevatar.Workflow.Application/Aevatar.Workflow.Application.csproj`。
-3. `Projection` 依赖 `CQRS.Projection.*` 与 `Foundation.Projection`，由通用内核承载生命周期/订阅。  
-证据：`src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj`。
-4. `Host.Api` 保持薄宿主，通过扩展方法组合能力。  
-证据：`src/workflow/Aevatar.Workflow.Host.Api/Program.cs`、`src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`。
-
-### 3.2 统一 CQRS/Projection 主链路（本轮重点）
-
-1. 命令入口编排职责已下沉拆分：  
-`WorkflowChatRunApplicationService`（入口） +  
-`WorkflowRunContextFactory`（上下文创建） +  
-`WorkflowRunExecutionEngine`（执行/流转） +  
-`WorkflowRunCompletionPolicy`（终态判定） +  
-`WorkflowRunResourceFinalizer`（资源回收）。  
-证据：`src/workflow/Aevatar.Workflow.Application/Runs/WorkflowChatRunApplicationService.cs`、`src/workflow/Aevatar.Workflow.Application/Runs/WorkflowRunExecutionEngine.cs`。
-2. 投影端口实现拆分为 facade + 策略组件：  
-`WorkflowExecutionProjectionService` +  
-`WorkflowProjectionActivationService` +  
-`WorkflowProjectionReleaseService` +  
-`WorkflowProjectionLeaseManager` +  
-`WorkflowProjectionSinkSubscriptionManager` +  
-`WorkflowProjectionLiveSinkForwarder` +  
-`WorkflowProjectionSinkFailurePolicy` +  
-`WorkflowProjectionReadModelUpdater` +  
-`WorkflowProjectionQueryReader`。  
-证据：`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionService.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionActivationService.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReleaseService.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionLiveSinkForwarder.cs`。
-3. 架构门禁新增编排类体量限制（行数/依赖数），防止职责反弹。  
-证据：`tools/ci/architecture_guards.sh`。
-
-### 3.3 Projection 编排与会话语义
-
-1. 投影端口使用显式 lease/session（`Ensure/Attach/Detach/Release`），符合句柄化生命周期。  
-证据：`src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionPort.cs`。
-2. ownership + lease 协调生命周期，防并发重复启动。  
-证据：`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionLeaseManager.cs`、`test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs`。
-3. sink 背压/写入失败有显式异常策略与错误事件回传。  
-证据：`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionSinkFailurePolicy.cs`、`test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs`。
-
-### 3.4 子解结构图
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-    A1["Workflow.Host.Api"]
-    A2["Workflow.Extensions.Hosting"]
-    A3["Workflow.Infrastructure"]
-    B1["Workflow.Application"]
-    B2["Workflow.Projection"]
-    C1["Workflow.Core"]
-    D1["CQRS.Projection.Core"]
-    D2["Projection Ownership Actor"]
-    E1["Workflow.Extensions.AIProjection"]
-    E2["Workflow.Extensions.Maker"]
-
-    A1 --> A2
-    A2 --> A3
-    A3 --> B1
-    A3 --> B2
-    A3 --> C1
-    B1 --> B2
-    B2 --> D1
-    B2 --> D2
-    A2 --> E1
-    C1 --> E2
-```
-
-## 4. 客观验证结果
-
-| 检查项 | 命令 | 结果 |
-|---|---|---|
-| 子解构建 | `dotnet build aevatar.workflow.slnf --nologo --tl:off -m:1 -p:UseSharedCompilation=false -p:NuGetAudit=false` | 通过（0 warning / 0 error） |
-| 子解测试 | `dotnet test aevatar.workflow.slnf --nologo --tl:off -m:1 -p:UseSharedCompilation=false -p:NuGetAudit=false --no-build` | 通过（`188 passed / 0 failed`） |
-| 架构门禁 | `bash tools/ci/architecture_guards.sh` | 通过 |
-| 覆盖率采集（Workflow 程序集过滤） | `dotnet test aevatar.workflow.slnf ... --collect:"XPlat Code Coverage" + reportgenerator` | 行覆盖率 `64.3%`，分支覆盖率 `42.1%`，方法覆盖率 `72.8%` |
-
-覆盖率证据（最近一次采集）：`artifacts/coverage/20260222-025047-workflow-slnf/report/Summary.json`。
-
-## 5. 评分结果（100 分制）
-
-**总分：98 / 100（A+）**
-
-| 维度 | 权重 | 得分 | 说明 |
-|---|---:|---:|---|
-| 分层与依赖反转 | 20 | 20 | `Core/Application/Projection/Infrastructure/Host` 边界清晰。 |
-| CQRS 与统一投影链路 | 20 | 19 | 主链路统一，编排职责拆分已落地。 |
-| Projection 编排与状态约束 | 20 | 20 | facade + 激活/释放/转发/订阅组件分层明确，职责边界清晰。 |
-| 读写分离与会话语义 | 15 | 15 | 命令与查询职责分离，lease/session 模型清晰。 |
-| 命名语义与冗余清理 | 10 | 10 | 命名与职责基本一致。 |
-| 可验证性（门禁/构建/测试） | 15 | 14 | build/test/guard 全绿；覆盖率仍有提升空间。 |
-
-## 6. 主要扣分项（按影响度）
-
-### P1
-
-1. 暂无 P1 阻断项。
-
-### P2
-
-1. Workflow 子解覆盖率尚未进入高位区间（特别是分支覆盖率），建议继续补关键异常路径。  
-证据：`artifacts/coverage/20260222-025047-workflow-slnf/report/Summary.json`。
-
-## 7. 改进建议（优先级）
-
-1. P1：为 workflow 子解增加覆盖率阈值门禁（line/branch 双阈值），并纳入 `tools/ci/solution_split_test_guards.sh` 或独立 guard。
-2. P2：补齐投影异常路径与并发边界测试（sink 失败、lease 抢占、attach/detach 竞态）。

From c824b364074a068d72e8ed1ed6a9727a74870cdb Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Tue, 24 Feb 2026 23:05:09 +0800
Subject: [PATCH 27/46] Add Projection ReadModel Refactor Plan and Audit
 Scorecard

- Introduced a detailed refactor plan for the Projection ReadModel, outlining core objectives, implementation strategies, and architectural changes aimed at enhancing clarity and maintainability.
- Added an audit scorecard for the Projection ReadModel, providing a comprehensive evaluation of the architecture with a scoring system and detailed validation results, ensuring transparency and accountability in the assessment process.
- Both documents align with ongoing refactoring efforts and aim to improve overall documentation quality and project organization.
---
 ...readmodel-full-refactor-plan-2026-02-24.md | 414 ++++++++++++++++++
 ...ojection-readmodel-scorecard-2026-02-24.md | 218 +++++++++
 2 files changed, 632 insertions(+)
 create mode 100644 docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
 create mode 100644 docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md

diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
new file mode 100644
index 000000000..17a68b1d0
--- /dev/null
+++ b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
@@ -0,0 +1,414 @@
+# Projection ReadModel 全量重构实施计划（v2，按仓库现状细化）
+
+## 1. 本版更新说明
+
+1. 采用你提出的核心规则：**索引 metadata 由 `TReadModel` 泛型 provider 提供**，不挂在 readmodel 实例方法上。
+2. 计划已按当前仓库真实结构重写，覆盖到项目/目录/文件级实施方式。
+3. 继续执行“无兼容重构”：删除旧链路，不保留兼容层和回退开关。
+
+## 2. 目标与边界
+
+1. 目标：开发者只定义 `State -> ReadModel`，并通过 readmodel 能力接口自动决定写入文档库/图库。
+2. 目标：消除 `Bindings[Type.FullName]` 配置路由，改为类型能力路由。
+3. 目标：消除 `ReadModel` 与 `Relation` 双体系心智割裂。
+4. 非目标：不做旧配置兼容，不做灰度并存。
+
+## 3. 仓库现状映射（实施基准）
+
+| 层 | 项目 | 现状职责 | 重构动作 |
+|---|---|---|---|
+| 抽象 | `src/Aevatar.CQRS.Projection.Stores.Abstractions` | ReadModel/Relation/Selection 抽象 | 重构为 capability-first 抽象中心 |
+| 运行时 | `src/Aevatar.CQRS.Projection.Runtime` | provider 选择、binding 解析、factory | 删除 binding 路径，新增 capability router |
+| Provider | `src/Aevatar.CQRS.Projection.Providers.InMemory` | InMemory ReadModel + Relation | 拆分 Doc/Graph provider 能力注册 |
+| Provider | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch` | ES ReadModel + (弱)Relation | 收敛为 Document provider |
+| Provider | `src/Aevatar.CQRS.Projection.Providers.Neo4j` | Neo4j ReadModel + Relation | 收敛为 Graph provider（可选保留 Doc） |
+| 读侧业务 | `src/workflow/Aevatar.Workflow.Projection` | ReadModel projector + Relation projector | 合并为单 readmodel materialization 主链 |
+| 应用层 | `src/workflow/Aevatar.Workflow.Application` | 查询/运行编排 | 查询改为统一 facade/port 聚合 |
+| 接口层 | `src/workflow/Aevatar.Workflow.Infrastructure` | endpoints 协议适配 | 新增 graph-enriched endpoint，禁止手工两跳拼装 |
+| Host 组合 | `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting` | provider 配置与注册 | 改为 Document/Graph provider 独立配置 |
+| 门禁 | `tools/ci/architecture_guards.sh` 等 | 架构与路由守卫 | 新增 capability-first 规则守卫 |
+
+## 4. 目标架构（最终）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    subgraph D["Domain ReadModel"]
+        D1["WorkflowExecutionReport"]
+        D2["IDocumentReadModel"]
+        D3["IGraphReadModel"]
+        D4["Graph Node/Edges Data"]
+    end
+
+    subgraph A["Projection Application"]
+        A1["Reducers"]
+        A2["ReadModel Projector"]
+        A3["Materialization Router"]
+        A4["Projection Query Facade"]
+    end
+
+    subgraph I["Infrastructure Stores"]
+        I1["Document Store (ES/InMemory)"]
+        I2["Graph Store (Neo4j/InMemory)"]
+        I3["ReadModel Metadata Provider<TReadModel>"]
+    end
+
+    subgraph H["Host/API"]
+        H1["/actors/{id}"]
+        H2["/actors/{id}/relation-subgraph"]
+        H3["/actors/{id}/graph-enriched"]
+    end
+
+    D1 --> D2
+    D1 --> D3
+    D3 --> D4
+
+    A1 --> A2 --> A3
+    A3 --> I1
+    A3 --> I2
+    D2 --> I3 --> I1
+
+    H1 --> A4
+    H2 --> A4
+    H3 --> A4
+    A4 --> I1
+    A4 --> I2
+```
+
+## 5. 核心契约（重构后）
+
+### 5.1 ReadModel 能力接口
+
+```csharp
+public interface IProjectionReadModel
+{
+    string Id { get; }
+}
+
+public interface IDocumentReadModel : IProjectionReadModel
+{
+    string DocumentScope { get; }
+}
+
+public interface IGraphReadModel : IProjectionReadModel
+{
+    GraphNodeDescriptor GraphNode { get; }
+    IReadOnlyList<GraphEdgeDescriptor> GraphEdges { get; }
+}
+
+public sealed record GraphNodeDescriptor(
+    string NodeId,
+    string NodeType,
+    IReadOnlyDictionary<string, string> Properties);
+
+public sealed record GraphEdgeDescriptor(
+    string EdgeId,
+    string RelationType,
+    string FromNodeId,
+    string ToNodeId,
+    IReadOnlyDictionary<string, string> Properties);
+```
+
+### 5.2 索引 metadata（泛型 provider）
+
+```csharp
+public sealed record DocumentIndexMetadata(
+    string IndexName,
+    string MappingJson,
+    IReadOnlyDictionary<string, string> Settings,
+    IReadOnlyDictionary<string, string> Aliases);
+
+public interface IReadModelDocumentMetadataProvider<TReadModel>
+    where TReadModel : class, IDocumentReadModel
+{
+    DocumentIndexMetadata Metadata { get; }
+}
+```
+
+约束：
+
+1. `DocumentIndexMetadata` 必须由 `TReadModel` 对应 provider 给出，禁止从运行时对象反射/动态拼接。
+2. `IReadModelDocumentMetadataProvider<TReadModel>` 在 DI 中必须唯一注册。
+
+### 5.3 路由与写入契约
+
+```csharp
+public interface IDocumentProjectionStore<TReadModel, in TKey>
+    where TReadModel : class, IDocumentReadModel
+{
+    Task UpsertAsync(TReadModel readModel, CancellationToken ct = default);
+    Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default);
+    Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default);
+}
+
+public interface IGraphProjectionStore<TReadModel>
+    where TReadModel : class, IGraphReadModel
+{
+    Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct = default);
+    Task<ProjectionRelationSubgraph> GetSubgraphAsync(string nodeId, int depth, int take, CancellationToken ct = default);
+}
+
+public interface IProjectionMaterializationRouter<TReadModel, in TKey>
+    where TReadModel : class, IProjectionReadModel
+{
+    Task MaterializeAsync(TReadModel readModel, TKey key, CancellationToken ct = default);
+}
+```
+
+## 6. 关键实施策略
+
+1. 单一 projector 产出 `ReadModel`，materialization router 根据接口能力执行 Doc/Graph 单写或双写。
+2. Graph 不再由单独 relation projector 维护；关系由 `IGraphReadModel.GraphEdges` 数据驱动。
+3. Graph 写入必须执行边差异收敛（`toAdd/toUpdate/toDelete`），不能只 upsert。
+4. 查询统一由 projection query facade 完成，endpoint 不手工先查图再查文档。
+5. 默认 deduplicator 改为持久化实现，passthrough 只在测试 profile 注入。
+6. 统一时间源到 `IProjectionClock`。
+
+## 7. 文件级改造清单（按项目）
+
+## 7.1 `src/Aevatar.CQRS.Projection.Stores.Abstractions`
+
+新增：
+
+1. `Abstractions/ReadModels/IProjectionReadModel.cs`
+2. `Abstractions/ReadModels/IDocumentReadModel.cs`
+3. `Abstractions/ReadModels/IGraphReadModel.cs`
+4. `Abstractions/ReadModels/GraphNodeDescriptor.cs`
+5. `Abstractions/ReadModels/GraphEdgeDescriptor.cs`
+6. `Abstractions/ReadModels/DocumentIndexMetadata.cs`
+7. `Abstractions/ReadModels/IReadModelDocumentMetadataProvider.cs`
+8. `Abstractions/ReadModels/IDocumentProjectionStore.cs`
+9. `Abstractions/ReadModels/IGraphProjectionStore.cs`
+10. `Abstractions/Selection/IProjectionMaterializationRouter.cs`
+
+修改：
+
+1. `Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs`（移除 `Bindings`）
+2. `Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs`（改为 Document/Graph provider 选项）
+3. `Abstractions/ReadModels/ProjectionReadModelRequirements.cs`（改为 capability bool 集合）
+
+删除：
+
+1. `Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs`
+2. `Abstractions/ReadModels/ProjectionReadModelBindingException.cs`
+3. `Abstractions/ReadModels/ProjectionReadModelIndexKind.cs`
+
+## 7.2 `src/Aevatar.CQRS.Projection.Runtime`
+
+新增：
+
+1. `Runtime/ProjectionReadModelCapabilityInspector.cs`
+2. `Runtime/ProjectionMaterializationRouter.cs`
+3. `Runtime/ProjectionDocumentMetadataResolver.cs`
+4. `Runtime/ProjectionGraphWritePlanner.cs`
+
+修改：
+
+1. `Runtime/ProjectionStoreSelectionPlanner.cs`（基于 capability，不再读取 binding）
+2. `Runtime/ProjectionReadModelProviderSelector.cs`（Document provider 选择）
+3. `Runtime/ProjectionRelationStoreProviderSelector.cs`（重命名为 Graph provider selector）
+4. `DependencyInjection/ServiceCollectionExtensions.cs`（注册新 router/resolver）
+
+删除：
+
+1. `Runtime/ProjectionReadModelBindingResolver.cs`
+
+## 7.3 `src/Aevatar.CQRS.Projection.Providers.InMemory`
+
+新增：
+
+1. `Stores/InMemoryDocumentProjectionStore.cs`
+2. `Stores/InMemoryGraphProjectionStore.cs`
+
+修改：
+
+1. `DependencyInjection/ServiceCollectionExtensions.cs`（改为注册 `IDocumentProjectionStore` / `IGraphProjectionStore`）
+
+删除：
+
+1. `Stores/InMemoryProjectionReadModelStore.cs`
+2. `Stores/InMemoryProjectionRelationStore.cs`
+
+## 7.4 `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
+
+新增：
+
+1. `Stores/ElasticsearchDocumentProjectionStore.cs`
+2. `Stores/ElasticsearchIndexMetadataBootstrapper.cs`
+
+修改：
+
+1. `DependencyInjection/ServiceCollectionExtensions.cs`（仅注册 document provider）
+
+删除：
+
+1. `Stores/ElasticsearchProjectionRelationStore.cs`
+2. `Stores/ElasticsearchProjectionReadModelStore.cs`
+
+## 7.5 `src/Aevatar.CQRS.Projection.Providers.Neo4j`
+
+新增：
+
+1. `Stores/Neo4jGraphProjectionStore.cs`
+2. `Stores/Neo4jGraphDiffWriter.cs`
+
+修改：
+
+1. `DependencyInjection/ServiceCollectionExtensions.cs`（默认注册 graph provider）
+
+删除：
+
+1. `Stores/Neo4jProjectionRelationStore.cs`
+2. `Stores/Neo4jProjectionReadModelStore.cs`（若不保留图库文档能力）
+
+## 7.6 `src/workflow/Aevatar.Workflow.Projection`
+
+新增：
+
+1. `Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs`
+2. `Orchestration/WorkflowProjectionQueryFacade.cs`
+
+修改：
+
+1. `ReadModels/WorkflowExecutionReadModel.cs`（实现 `IDocumentReadModel` + `IGraphReadModel`）
+2. `Projectors/WorkflowExecutionReadModelProjector.cs`（完成 reduce 后只调用 materialization router）
+3. `DependencyInjection/ServiceCollectionExtensions.cs`（移除 relation projector 注册，注册 metadata provider）
+4. `Orchestration/WorkflowProjectionQueryReader.cs`（调用 facade，支持 graph-enriched）
+5. `Orchestration/WorkflowProjectionReadModelUpdater.cs`（统一 clock 与 materialization）
+
+删除：
+
+1. `Projectors/WorkflowExecutionRelationProjector.cs`
+2. `ReadModels/WorkflowExecutionRelationConstants.cs`（关系常量下沉到 graph descriptor）
+
+## 7.7 `src/workflow/Aevatar.Workflow.Application.Abstractions`
+
+修改：
+
+1. `Projections/IWorkflowExecutionProjectionQueryPort.cs`（新增 graph-enriched 查询方法）
+2. `Queries/WorkflowExecutionQueryModels.cs`（新增 graph-enriched DTO）
+
+## 7.8 `src/workflow/Aevatar.Workflow.Application`
+
+修改：
+
+1. `Queries/WorkflowExecutionQueryApplicationService.cs`（统一走新 query port/facade）
+
+## 7.9 `src/workflow/Aevatar.Workflow.Infrastructure`
+
+修改：
+
+1. `CapabilityApi/ChatQueryEndpoints.cs`（新增 `/actors/{actorId}/graph-enriched`）
+2. `DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`（去掉 relation 分支显式依赖）
+
+## 7.10 `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting`
+
+修改：
+
+1. `WorkflowProjectionProviderServiceCollectionExtensions.cs`
+   1. 删除 `Projection:ReadModel:Bindings` 路径。
+   2. 新增 `Projection:Document:Provider` 与 `Projection:Graph:Provider`。
+   3. provider 注册改为 capability 对应注册。
+
+## 7.11 测试项目
+
+修改：
+
+1. `test/Aevatar.CQRS.Projection.Core.Tests`
+   1. 删除 binding resolver 相关测试。
+   2. 新增 metadata provider、capability router、dual-write 路径测试。
+2. `test/Aevatar.Workflow.Host.Api.Tests`
+   1. 删除 `WorkflowExecutionRelationProjectorTests.cs`。
+   2. 新增 graph-enriched 查询与统一 projector 行为测试。
+
+## 7.12 CI / Guard
+
+修改：
+
+1. `tools/ci/architecture_guards.sh`
+   1. 新增禁用 `Bindings[` / `Type.FullName` 路由规则。
+   2. 新增 `IReadModelDocumentMetadataProvider<TReadModel>` 唯一注册守卫。
+2. `tools/ci/projection_route_mapping_guard.sh`
+   1. 保留 TypeUrl 精确路由守卫。
+3. `tools/ci/projection_provider_e2e_smoke.sh`
+   1. 增加 dual-write（ES + Neo4j）完整执行断言。
+
+## 8. 实施阶段（可执行方式）
+
+### Phase 0：基线冻结（0.5 天）
+
+1. 执行并留档：
+   1. `bash tools/ci/architecture_guards.sh`
+   2. `bash tools/ci/projection_route_mapping_guard.sh`
+   3. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
+   4. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
+2. 输出 ADR：确认无兼容策略与删除清单。
+
+### Phase 1：抽象改造（2 天）
+
+1. 先改 `Stores.Abstractions` 新接口与 metadata provider 泛型。
+2. 删 binding 抽象与引用。
+3. 修复编译并补最小单测。
+
+### Phase 2：Runtime + Provider（3 天）
+
+1. 落地 capability inspector/router/metadata resolver。
+2. InMemory/ES/Neo4j provider 按 doc/graph 重建。
+3. 补 dual-write 失败上报与重试策略测试。
+
+### Phase 3：Workflow Projection 主链收敛（3 天）
+
+1. `WorkflowExecutionReport` 实现双能力。
+2. 删除 relation projector，统一写入 router。
+3. QueryReader 改为统一 facade/port。
+
+### Phase 4：Application + API（2 天）
+
+1. 应用查询服务与 endpoint 全部接新 query port。
+2. 新增 graph-enriched endpoint。
+3. 删除 endpoint 手工二次拼装逻辑。
+
+### Phase 5：门禁与文档收口（1.5 天）
+
+1. 更新 CI 守卫与 E2E。
+2. 删除遗留文档、遗留配置示例、遗留测试。
+3. 重新执行全量验证命令。
+
+## 9. 验证命令（阶段完成即跑）
+
+1. `dotnet restore aevatar.slnx --nologo`
+2. `dotnet build aevatar.slnx --nologo`
+3. `dotnet test aevatar.slnx --nologo`
+4. `bash tools/ci/architecture_guards.sh`
+5. `bash tools/ci/projection_route_mapping_guard.sh`
+6. `bash tools/ci/solution_split_guards.sh`
+7. `bash tools/ci/solution_split_test_guards.sh`
+8. `bash tools/ci/test_stability_guards.sh`
+
+## 10. 验收标准（DoD）
+
+1. 新增 readmodel 时不再需要 `Bindings` 配置。
+2. `TReadModel` 的索引 metadata 必须由 `IReadModelDocumentMetadataProvider<TReadModel>` 提供且可被 runtime 解析。
+3. 同一事件输入可稳定触发 doc/graph 双写（按能力接口自动路由）。
+4. 图查询调用方不再手写两跳逻辑。
+5. 全量门禁、构建、测试通过。
+
+## 11. 不做项（明确删除）
+
+1. 不保留旧 `Projection:ReadModel:Bindings` 配置。
+2. 不保留旧 relation projector 与新 router 并存。
+3. 不保留 compatibility adapter 或 feature flag 回退。
+
+## 12. 阶段执行图
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart TB
+    P0["Phase 0 基线冻结"] --> P1["Phase 1 抽象改造"]
+    P1 --> P2["Phase 2 Runtime + Provider"]
+    P2 --> P3["Phase 3 Workflow Projection 收敛"]
+    P3 --> P4["Phase 4 Application + API"]
+    P4 --> P5["Phase 5 门禁与文档收口"]
+    P5 --> DONE["Build/Test/Guards 全绿"]
+```
+
diff --git a/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md
new file mode 100644
index 000000000..1d33d9d25
--- /dev/null
+++ b/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md
@@ -0,0 +1,218 @@
+# Projection ReadModel 架构评分卡（2026-02-24，严格详细版）
+
+## 1. 审计范围与方法
+
+1. 审计对象：`Projection ReadModel` 端到端链路（Host 接线、Application 端口、Projection Core 编排、Runtime 选型、Provider 存储、AGUI 同链路分支、CI 门禁与测试）。
+2. 评分规范：`docs/audit-scorecard/README.md`（100 分，6 维度）。
+3. 评分原则：按“先满分后扣分”，仅对已落地且可复现的问题扣分；每项扣分绑定代码证据（文件+行号）或命令结果。
+4. 审计基线：遵循评分规范第 2 节（InMemory/Local Actor/ProjectReference 不作为扣分项）。
+
+## 2. 关键验证结果（本次实跑）
+
+| 检查项 | 命令 | 结果 |
+|---|---|---|
+| 架构门禁（含 route mapping） | `bash tools/ci/architecture_guards.sh` | 通过（`Architecture guards passed.`） |
+| 路由映射专项 | `bash tools/ci/projection_route_mapping_guard.sh` | 通过（`Projection route-mapping guard passed.`） |
+| Projection Core 定向测试 | `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo --filter "FullyQualifiedName~ProjectionReadModelRuntimeTests\|FullyQualifiedName~ProjectionReadModelStoreSelectorTests\|FullyQualifiedName~ProjectionProviderE2EIntegrationTests" -m:1 -p:UseSharedCompilation=false` | 通过（`10 passed / 0 failed / 2 skipped`） |
+| Workflow Projection 定向测试 | `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo --filter "FullyQualifiedName~WorkflowExecutionProjectionRegistrationTests\|FullyQualifiedName~WorkflowExecutionReadModelProjectorTests\|FullyQualifiedName~WorkflowProjectionOrchestrationComponentTests" -m:1 -p:UseSharedCompilation=false` | 通过（`36 passed / 0 failed / 0 skipped`） |
+
+## 3. 总分与等级
+
+**总分：95 / 100（A+）**
+
+| 维度 | 权重 | 得分 | 扣分说明 |
+|---|---:|---:|---|
+| 分层与依赖反转 | 20 | 20 | 未发现跨层反向依赖与宿主承载核心业务编排问题。 |
+| CQRS 与统一投影链路 | 20 | 19 | 默认去重器为透传实现，降低 at-least-once 场景下 readmodel 幂等鲁棒性。 |
+| Projection 编排与状态约束 | 20 | 17 | live sink 订阅关系保存在进程内 lease 对象，未 actor/distributed 化。 |
+| 读写分离与会话语义 | 15 | 14 | 完成阶段时间源使用 `DateTimeOffset.UtcNow`，未统一走 `IProjectionClock`。 |
+| 命名语义与冗余清理 | 10 | 10 | 命名、职责边界与扩展点语义一致，未见重复空壳层。 |
+| 可验证性（门禁/构建/测试） | 15 | 15 | 架构门禁 + 路由门禁 + 相关定向测试均通过。 |
+
+## 4. 详细扣分项（严格）
+
+### 4.1 P2-1：Live Sink 订阅运行态仍为进程内事实（-3）
+
+1. 证据：`WorkflowExecutionRuntimeLease` 内维护 `_liveSinkSubscriptions` 列表，并提供 attach/detach/count 逻辑。  
+   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionRuntimeLease.cs:8`  
+   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionRuntimeLease.cs:31`  
+   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionRuntimeLease.cs:60`
+2. 证据：`ReleaseIfIdleAsync` 依赖该本地计数决定是否释放投影 ownership。  
+   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReleaseService.cs:31`
+3. 影响：在多节点/连接迁移场景，sink 订阅事实与 ownership 释放决策可能出现节点本地视角偏差。
+4. 结论：不属于“actorId->context 字典”硬违规，但与“投影会话/订阅运行态 actor 化”目标相比仍有架构欠账。
+
+### 4.2 P2-2：默认去重策略为透传（-1）
+
+1. 证据：默认注入 `PassthroughEventDeduplicator`。  
+   `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs:46`
+2. 证据：透传实现始终返回 `true`，不记录任何去重状态。  
+   `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs:165`
+3. 证据：projector 去重逻辑依赖该接口。  
+   `src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs:61`
+4. 影响：在重复投递或重放噪声下，timeline/summary 可能重复累计，影响 readmodel 一致性鲁棒性。
+
+### 4.3 P3-1：时间源未完全统一（-1）
+
+1. 证据：`CompleteAsync` 直接使用 `DateTimeOffset.UtcNow`。  
+   `src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs:88`
+2. 对比：同链路其他组件已使用 `IProjectionClock`（activation/updater/failure reporter）。  
+   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionActivationService.cs:39`  
+   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs:24`  
+   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchFailureReporter.cs:42`
+3. 影响：测试可控性与跨组件时间语义一致性略受影响。
+
+## 5. 正向证据（加分项）
+
+1. 统一选择权威入口：Runtime selector 复用抽象层权威 `ProjectionReadModelStoreSelector.Select(...)`。  
+   `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs:32`  
+   `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs:5`
+2. ReadModel/Relation 统一规划：单一 `ProjectionStoreSelectionPlanner` 产出双存储 selection plan。  
+   `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs:12`  
+   `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs:155`
+3. startup 校验与运行时选择同源：`WorkflowReadModelStartupValidationHostedService` 复用同一 selection plan。  
+   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs:47`
+4. 生命周期显式 lease/session：Lifecycle port 不暴露 `actorId` 反查，Attach/Detach/Release 都基于 lease。  
+   `src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionLifecyclePort.cs:16`
+5. ownership actor 化：acquire/release 通过 `ActorProjectionOwnershipCoordinator -> ProjectionOwnershipCoordinatorGAgent`。  
+   `src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs:23`  
+   `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs:25`
+6. 统一入口一对多分发：同一 `EventEnvelope` 在 coordinator 中分发到多个 projector 分支。  
+   `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionCoordinator.cs:19`
+7. AGUI 与 ReadModel 共用同链路输入：AGUI projector 作为同一 projector 分支发布 run event。  
+   `src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs:22`  
+   `src/workflow/Aevatar.Workflow.Presentation.AGUIAdapter/WorkflowExecutionAGUIEventProjector.cs:15`
+8. Route mapping 守卫要求 `TypeUrl` 派生 + 精确键匹配 + `TryGetValue` 命中。  
+   `tools/ci/projection_route_mapping_guard.sh:11`  
+   `tools/ci/projection_route_mapping_guard.sh:71`
+9. 中间层 ID 映射字典门禁已落地（full-scan）。  
+   `tools/ci/architecture_guards.sh:548`  
+   `tools/ci/architecture_guards.sh:590`
+
+## 6. 分模块评分
+
+| 模块 | 得分 | 结论 |
+|---|---:|---|
+| Projection Core（编排/订阅/ownership） | 95 | 主链清晰，ownership actor 化到位；runtime sink 运行态仍有本地化残留。 |
+| Runtime（provider registry/selector/factory/planner） | 100 | 单一权威选择逻辑 + 统一规划，结构化日志与失败语义完整。 |
+| Workflow Projection（port/orchestration/projector） | 92 | 端口分离、链路完整；默认去重透传与完成时间源不统一需收敛。 |
+| Provider（InMemory/ES/Neo4j + relation） | 96 | 能力声明与写路径日志规范较完整；可观测性和一致性策略仍可增强。 |
+| Host/API 组合层 | 96 | API 主要负责协议适配与组合；未下沉到 projection 内核细节。 |
+| Guards + Tests | 98 | 守卫覆盖关键架构约束，相关定向测试通过，验证闭环较完整。 |
+
+## 7. 详细架构图
+
+### 7.1 Projection ReadModel 主链路（命令驱动 + 同链路 AGUI）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    subgraph H["Host / API"]
+        H1["/api/chat /api/ws/chat"]
+        H2["ICommandExecutionService"]
+        H3["IWorkflowExecutionQueryApplicationService"]
+    end
+
+    subgraph A["Application Layer"]
+        A1["WorkflowRunContextFactory"]
+        A2["IWorkflowExecutionProjectionLifecyclePort"]
+        A3["WorkflowRunExecutionEngine"]
+        A4["WorkflowRunResourceFinalizer"]
+        A5["IWorkflowExecutionProjectionQueryPort"]
+    end
+
+    subgraph P["Projection Ports + Orchestration"]
+        P1["WorkflowExecutionProjectionLifecycleService"]
+        P2["WorkflowProjectionActivationService"]
+        P3["WorkflowProjectionLeaseManager"]
+        P4["ActorProjectionOwnershipCoordinator"]
+        P5["ProjectionOwnershipCoordinatorGAgent(State)"]
+        P6["ProjectionLifecycleService"]
+        P7["ProjectionSubscriptionRegistry"]
+        P8["ActorStreamSubscriptionHub<EventEnvelope>"]
+    end
+
+    subgraph B["Projector Branches (Same Envelope)"]
+        B1["WorkflowExecutionReadModelProjector"]
+        B2["WorkflowExecutionRelationProjector"]
+        B3["WorkflowExecutionAGUIEventProjector"]
+    end
+
+    subgraph R["Runtime Selection + Stores"]
+        R1["ProjectionStoreSelectionPlanner"]
+        R2["ProjectionReadModelBindingResolver"]
+        R3["ProjectionReadModelStoreFactory"]
+        R4["ProjectionRelationStoreFactory"]
+        R5["InMemory / Elasticsearch / Neo4j"]
+    end
+
+    subgraph S["Session Stream + Live Sink"]
+        S1["ProjectionSessionEventHub<WorkflowRunEvent>"]
+        S2["WorkflowRunEventChannel / Sink"]
+    end
+
+    H1 --> H2
+    H2 --> A1
+    A1 --> A2
+    A2 --> P1
+    P1 --> P2
+    P2 --> P3 --> P4 --> P5
+    P2 --> P6 --> P7 --> P8
+    P8 --> B1
+    P8 --> B2
+    P8 --> B3
+
+    R1 --> R2
+    P2 --> R1
+    B1 --> R3 --> R5
+    B2 --> R4 --> R5
+    B3 --> S1 --> S2
+    A3 --> A4 --> A2
+
+    H3 --> A5
+    A5 --> R3
+    A5 --> R4
+```
+
+### 7.2 Store 选型与能力校验链（ReadModel + Relation）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart TB
+    O1["ProjectionReadModelRuntimeOptions"] --> P1["ProjectionStoreSelectionPlanner.Build"]
+    P1 --> P2["ReadModelSelectionOptions"]
+    P1 --> P3["RelationSelectionOptions"]
+    O2["ReadModel Bindings(Type.FullName -> IndexKind)"] --> B1["ProjectionReadModelBindingResolver.Resolve"] --> P1
+
+    P2 --> F1["ProjectionReadModelStoreFactory.Create"]
+    F1 --> G1["ProviderRegistry.GetRegistrations"]
+    G1 --> S1["ProjectionReadModelProviderSelector.Select"]
+    S1 --> X1["ProjectionReadModelStoreSelector.Select(Authority)"]
+    X1 --> C1["ProjectionReadModelCapabilityValidator.EnsureSupported"]
+    C1 --> RM["IProjectionReadModelStore"]
+
+    P3 --> F2["ProjectionRelationStoreFactory.Create"]
+    F2 --> G2["RelationProviderRegistry.GetRegistrations"]
+    G2 --> S2["ProjectionRelationStoreProviderSelector.Select"]
+    S2 --> X2["ProjectionStoreSelector.Select(Authority)"]
+    X2 --> C2["ProjectionReadModelCapabilityValidator.EnsureSupported"]
+    C2 --> RS["IProjectionRelationStore"]
+
+    RM --> V1["WorkflowExecutionReadModelProjector"]
+    RS --> V2["WorkflowExecutionRelationProjector"]
+```
+
+## 8. 结论与优先级建议
+
+### P1
+
+1. 无。
+
+### P2
+
+1. 将 live sink 订阅计数/绑定关系从 `WorkflowExecutionRuntimeLease` 迁移到 actor 持久态或抽象化分布式状态，避免多节点本地视角偏差。
+2. 用可替换的持久化 `IEventDeduplicator` 作为默认实现（至少按 `rootActorId + envelopeId` 做幂等记录），透传实现仅用于 dev/test。
+
+### P3
+
+1. 将 `WorkflowExecutionReadModelProjector.CompleteAsync` 的时间源统一到 `IProjectionClock`，消除链路内时间语义分叉。

From 5b18a6b82850edd37c4688ad05e98ae0962e8c33 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Tue, 24 Feb 2026 23:30:06 +0800
Subject: [PATCH 28/46] Refactor Projection ReadModel Architecture and Enhance
 Provider Capabilities

- Introduced new abstractions for document and graph read models, including `IDocumentReadModel`, `IGraphReadModel`, and their respective projection stores.
- Updated existing providers to support the new document and graph capabilities, including Elasticsearch and InMemory providers.
- Implemented a `ProjectionMaterializationRouter` for dual-write capabilities, allowing seamless integration between document and graph stores.
- Enhanced dependency injection configurations to register new services and ensure proper integration of the updated architecture.
- Improved documentation to reflect the architectural changes and provide clearer guidance on the new abstractions and provider capabilities.
---
 ...readmodel-full-refactor-plan-2026-02-24.md |  10 +-
 .../ServiceCollectionExtensions.cs            |  28 +-
 .../README.md                                 |   6 +-
 .../ElasticsearchProjectionRelationStore.cs   |  59 ---
 .../ServiceCollectionExtensions.cs            |  14 +-
 .../README.md                                 |  10 +-
 .../InMemoryProjectionReadModelStore.cs       |   7 +-
 .../Stores/InMemoryProjectionRelationStore.cs |   3 +-
 .../ServiceCollectionExtensions.cs            |  16 +-
 .../README.md                                 |  14 +-
 .../Stores/Neo4jProjectionReadModelStore.cs   |   2 +-
 .../ServiceCollectionExtensions.cs            |   4 +-
 src/Aevatar.CQRS.Projection.Runtime/README.md |   3 +-
 .../ProjectionDocumentMetadataResolver.cs     |  20 +
 .../Runtime/ProjectionGraphStoreAdapter.cs    | 172 +++++++
 .../ProjectionMaterializationRouter.cs        | 101 ++++
 .../ProjectionStoreSelectionPlanner.cs        |  52 +-
 .../ReadModels/DocumentIndexMetadata.cs       |   7 +
 .../ReadModels/GraphEdgeDescriptor.cs         |   9 +
 .../ReadModels/GraphNodeDescriptor.cs         |   7 +
 .../ReadModels/IDocumentProjectionStore.cs    |  13 +
 .../ReadModels/IDocumentReadModel.cs          |   6 +
 .../ReadModels/IGraphProjectionStore.cs       |  15 +
 .../ReadModels/IGraphReadModel.cs             |  10 +
 .../IProjectionDocumentMetadataResolver.cs    |   7 +
 .../ReadModels/IProjectionReadModel.cs        |   6 +
 .../ReadModels/IProjectionReadModelStore.cs   |  12 +-
 .../IReadModelDocumentMetadataProvider.cs     |   7 +
 .../ProjectionReadModelRuntimeOptions.cs      |  17 +-
 .../IProjectionMaterializationRouter.cs       |  13 +
 ...IProjectionStoreSelectionRuntimeOptions.cs |   6 +-
 .../README.md                                 |   3 +
 .../IWorkflowExecutionProjectionQueryPort.cs  |   7 +
 ...orkflowExecutionQueryApplicationService.cs |   7 +
 .../Queries/WorkflowExecutionQueryModels.cs   |   7 +
 ...orkflowExecutionQueryApplicationService.cs |  13 +
 .../CapabilityApi/ChatQueryEndpoints.cs       |  18 +
 .../ServiceCollectionExtensions.cs            |  34 +-
 ...ExecutionReportDocumentMetadataProvider.cs |  13 +
 .../IWorkflowProjectionQueryReader.cs         |   7 +
 ...WorkflowExecutionProjectionQueryService.cs |  21 +
 .../WorkflowProjectionQueryReader.cs          |  41 +-
 .../WorkflowProjectionReadModelUpdater.cs     |  10 +-
 ...ReadModelStartupValidationHostedService.cs |   8 +-
 .../WorkflowExecutionReadModelProjector.cs    |  23 +-
 .../WorkflowExecutionRelationProjector.cs     | 361 --------------
 .../Aevatar.Workflow.Projection/README.md     |  41 +-
 .../ReadModels/WorkflowExecutionReadModel.cs  | 193 +++++++-
 ...tionProviderServiceCollectionExtensions.cs | 102 ++--
 .../ProjectionStoreSelectionPlannerTests.cs   |  36 +-
 .../WorkflowApplicationLayerTests.cs          |  19 +
 .../ChatEndpointsInternalTests.cs             |  19 +
 ...hatWebSocketCoordinatorAndProtocolTests.cs |  20 +
 ...orkflowCapabilityEndpointsCoverageTests.cs |   8 +
 ...lowExecutionProjectionRegistrationTests.cs | 462 ++----------------
 ...WorkflowExecutionProjectionServiceTests.cs |  32 +-
 ...orkflowExecutionReadModelProjectorTests.cs |  36 +-
 ...WorkflowExecutionRelationProjectorTests.cs | 144 ------
 .../WorkflowHostingExtensionsCoverageTests.cs |  22 +-
 ...owProjectionOrchestrationComponentTests.cs |   9 +-
 60 files changed, 1126 insertions(+), 1246 deletions(-)
 delete mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreAdapter.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/DocumentIndexMetadata.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphNodeDescriptor.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentProjectionStore.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphProjectionStore.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphReadModel.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModel.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IReadModelDocumentMetadataProvider.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
 delete mode 100644 test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs

diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
index 17a68b1d0..a9667f370 100644
--- a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
+++ b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
@@ -6,6 +6,15 @@
 2. 计划已按当前仓库真实结构重写，覆盖到项目/目录/文件级实施方式。
 3. 继续执行“无兼容重构”：删除旧链路，不保留兼容层和回退开关。
 
+### 1.1 已落地实现（2026-02-24）
+
+1. 已新增 capability-first 抽象：`IProjectionReadModel`、`IDocumentReadModel`、`IGraphReadModel`、`IDocumentProjectionStore`、`IGraphProjectionStore`、`IProjectionMaterializationRouter`。
+2. 已落地泛型 metadata 链路：`IReadModelDocumentMetadataProvider<TReadModel>` + `IProjectionDocumentMetadataResolver`。
+3. 已落地 Runtime 双写路由：`ProjectionMaterializationRouter<TReadModel, TKey>` 与 `ProjectionGraphStoreAdapter<TReadModel>`。
+4. 已删除 `WorkflowExecutionRelationProjector`，关系写入改为 `WorkflowExecutionReport` 的 `GraphNodes/GraphEdges` 驱动。
+5. Host 配置已切换为 `Projection:Document:*` / `Projection:Graph:*`，并禁用 Elasticsearch 作为 graph provider。
+6. Workflow Query 已新增 `graph-enriched` 聚合查询与 endpoint：`/actors/{actorId}/graph-enriched`。
+
 ## 2. 目标与边界
 
 1. 目标：开发者只定义 `State -> ReadModel`，并通过 readmodel 能力接口自动决定写入文档库/图库。
@@ -411,4 +420,3 @@ flowchart TB
     P4 --> P5["Phase 5 门禁与文档收口"]
     P5 --> DONE["Build/Test/Guards 全绿"]
 ```
-
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index 9f08bb157..bace1df7c 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -7,17 +7,17 @@ namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
 
 public static class ServiceCollectionExtensions
 {
-    public static IServiceCollection AddElasticsearchReadModelStoreRegistration<TReadModel, TKey>(
+    public static IServiceCollection AddElasticsearchDocumentStoreRegistration<TReadModel, TKey>(
         this IServiceCollection services,
         Func<IServiceProvider, ElasticsearchProjectionReadModelStoreOptions> optionsFactory,
-        string indexScope,
+        Func<IServiceProvider, string> indexScopeFactory,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
         string providerName = ProjectionReadModelProviderNames.Elasticsearch)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
-        ArgumentNullException.ThrowIfNull(indexScope);
+        ArgumentNullException.ThrowIfNull(indexScopeFactory);
         ArgumentNullException.ThrowIfNull(keySelector);
 
         services.AddSingleton<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>(
@@ -31,7 +31,7 @@ public static IServiceCollection AddElasticsearchReadModelStoreRegistration<TRea
                     supportsSchemaValidation: false),
                 provider => new ElasticsearchProjectionReadModelStore<TReadModel, TKey>(
                     optionsFactory(provider),
-                    indexScope,
+                    indexScopeFactory(provider),
                     keySelector,
                     keyFormatter,
                     providerName,
@@ -39,24 +39,4 @@ public static IServiceCollection AddElasticsearchReadModelStoreRegistration<TRea
 
         return services;
     }
-
-    public static IServiceCollection AddElasticsearchRelationStoreRegistration(
-        this IServiceCollection services,
-        string providerName = ProjectionReadModelProviderNames.Elasticsearch)
-    {
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionRelationStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionRelationStore>(
-                providerName,
-                new ProjectionReadModelProviderCapabilities(
-                    providerName,
-                    supportsIndexing: true,
-                    indexKinds: [ProjectionReadModelIndexKind.Document],
-                    supportsAliases: false,
-                    supportsSchemaValidation: false,
-                    supportsRelations: false,
-                    supportsRelationTraversal: false),
-                _ => new ElasticsearchProjectionRelationStore(providerName)));
-
-        return services;
-    }
 }
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
index 7da4d67ad..116ddde54 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
@@ -14,11 +14,11 @@
 
 使用扩展方法：
 
-- `AddElasticsearchReadModelStoreRegistration<TReadModel, TKey>(...)`
+- `AddElasticsearchDocumentStoreRegistration<TReadModel, TKey>(...)`
 
 关键参数：
 
-- `optionsFactory`：绑定 `Projection:ReadModel:Providers:Elasticsearch:*` 配置。
-- `indexScope`：按业务语义隔离索引（会与 `IndexPrefix` 组合）。
+- `optionsFactory`：绑定 `Projection:Document:Providers:Elasticsearch:*` 配置。
+- `indexScopeFactory`：由 `IReadModelDocumentMetadataProvider<TReadModel>` 派生索引名。
 - `keySelector/keyFormatter`：ReadModel 主键映射。
 - `providerName`：默认 `Elasticsearch`（与 `ProjectionReadModelProviderNames.Elasticsearch` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
deleted file mode 100644
index 435e5e366..000000000
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionRelationStore.cs
+++ /dev/null
@@ -1,59 +0,0 @@
-namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
-
-public sealed class ElasticsearchProjectionRelationStore
-    : IProjectionRelationStore,
-      IProjectionStoreProviderMetadata
-{
-    public ElasticsearchProjectionRelationStore(
-        string providerName = ProjectionReadModelProviderNames.Elasticsearch)
-    {
-        ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
-            providerName,
-            supportsIndexing: true,
-            indexKinds: [ProjectionReadModelIndexKind.Document],
-            supportsAliases: false,
-            supportsSchemaValidation: false,
-            supportsRelations: false,
-            supportsRelationTraversal: false);
-    }
-
-    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
-
-    public Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(node);
-        ct.ThrowIfCancellationRequested();
-        return Task.CompletedTask;
-    }
-
-    public Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(edge);
-        ct.ThrowIfCancellationRequested();
-        return Task.CompletedTask;
-    }
-
-    public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
-    {
-        ct.ThrowIfCancellationRequested();
-        return Task.CompletedTask;
-    }
-
-    public Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
-        ProjectionRelationQuery query,
-        CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(query);
-        ct.ThrowIfCancellationRequested();
-        return Task.FromResult<IReadOnlyList<ProjectionRelationEdge>>([]);
-    }
-
-    public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
-        ProjectionRelationQuery query,
-        CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(query);
-        ct.ThrowIfCancellationRequested();
-        return Task.FromResult(new ProjectionRelationSubgraph());
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index f1bdabbf7..010155451 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -6,7 +6,7 @@ namespace Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 
 public static class ServiceCollectionExtensions
 {
-    public static IServiceCollection AddInMemoryReadModelStoreRegistration<TReadModel, TKey>(
+    public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel, TKey>(
         this IServiceCollection services,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
@@ -22,9 +22,10 @@ public static IServiceCollection AddInMemoryReadModelStoreRegistration<TReadMode
                 providerName,
                 new ProjectionReadModelProviderCapabilities(
                     providerName,
-                    supportsIndexing: false,
-                    supportsRelations: true,
-                    supportsRelationTraversal: true),
+                    supportsIndexing: true,
+                    indexKinds: [ProjectionReadModelIndexKind.Document],
+                    supportsRelations: false,
+                    supportsRelationTraversal: false),
                 provider => new InMemoryProjectionReadModelStore<TReadModel, TKey>(
                     keySelector,
                     keyFormatter,
@@ -36,7 +37,7 @@ public static IServiceCollection AddInMemoryReadModelStoreRegistration<TReadMode
         return services;
     }
 
-    public static IServiceCollection AddInMemoryRelationStoreRegistration(
+    public static IServiceCollection AddInMemoryGraphStoreRegistration(
         this IServiceCollection services,
         string providerName = ProjectionReadModelProviderNames.InMemory)
     {
@@ -45,7 +46,8 @@ public static IServiceCollection AddInMemoryRelationStoreRegistration(
                 providerName,
                 new ProjectionReadModelProviderCapabilities(
                     providerName,
-                    supportsIndexing: false,
+                    supportsIndexing: true,
+                    indexKinds: [ProjectionReadModelIndexKind.Graph],
                     supportsRelations: true,
                     supportsRelationTraversal: true),
                 _ => new InMemoryProjectionRelationStore(providerName)));
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
index 68c950386..8c0cc060b 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
@@ -1,17 +1,19 @@
 # Aevatar.CQRS.Projection.Providers.InMemory
 
-通用 InMemory ReadModel Provider。
+通用 InMemory Provider（支持 Document/Graph 两类能力）。
 
 - 不依赖业务域模型。
-- 支持按 keySelector 注册任意 `IProjectionReadModelStore<TReadModel, TKey>`。
-- 默认能力：非索引型（`SupportsIndexing=false`）。
+- 支持按 keySelector 注册任意 `IProjectionReadModelStore<TReadModel, TKey>`（Document）。
+- 支持关系图存储注册（Graph）。
+- 默认能力：Document 索引 / Graph 索引（仅用于开发和测试语义）。
 - 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
 
 ## DI 注册
 
 使用扩展方法：
 
-- `AddInMemoryReadModelStoreRegistration<TReadModel, TKey>(...)`
+- `AddInMemoryDocumentStoreRegistration<TReadModel, TKey>(...)`
+- `AddInMemoryGraphStoreRegistration(...)`
 
 关键参数：
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
index 809b927de..c56ae7e65 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
@@ -34,9 +34,10 @@ public InMemoryProjectionReadModelStore(
         _logger = logger ?? NullLogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>.Instance;
         ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
             providerName,
-            supportsIndexing: false,
-            supportsRelations: true,
-            supportsRelationTraversal: true);
+            supportsIndexing: true,
+            indexKinds: [ProjectionReadModelIndexKind.Document],
+            supportsRelations: false,
+            supportsRelationTraversal: false);
     }
 
     public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs
index b19df3b36..0d74a6ecd 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs
@@ -16,7 +16,8 @@ public InMemoryProjectionRelationStore(
     {
         ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
             providerName,
-            supportsIndexing: false,
+            supportsIndexing: true,
+            indexKinds: [ProjectionReadModelIndexKind.Graph],
             supportsRelations: true,
             supportsRelationTraversal: true);
     }
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index 193d1b32e..afe9de1bf 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -7,17 +7,17 @@ namespace Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
 
 public static class ServiceCollectionExtensions
 {
-    public static IServiceCollection AddNeo4jReadModelStoreRegistration<TReadModel, TKey>(
+    public static IServiceCollection AddNeo4jDocumentStoreRegistration<TReadModel, TKey>(
         this IServiceCollection services,
         Func<IServiceProvider, Neo4jProjectionReadModelStoreOptions> optionsFactory,
-        string scope,
+        Func<IServiceProvider, string> scopeFactory,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
         string providerName = ProjectionReadModelProviderNames.Neo4j)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
-        ArgumentException.ThrowIfNullOrWhiteSpace(scope);
+        ArgumentNullException.ThrowIfNull(scopeFactory);
         ArgumentNullException.ThrowIfNull(keySelector);
 
         services.AddSingleton<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>(
@@ -33,7 +33,7 @@ public static IServiceCollection AddNeo4jReadModelStoreRegistration<TReadModel,
                     supportsRelationTraversal: true),
                 provider => new Neo4jProjectionReadModelStore<TReadModel, TKey>(
                     optionsFactory(provider),
-                    scope,
+                    scopeFactory(provider),
                     keySelector,
                     keyFormatter,
                     providerName,
@@ -42,14 +42,14 @@ public static IServiceCollection AddNeo4jReadModelStoreRegistration<TReadModel,
         return services;
     }
 
-    public static IServiceCollection AddNeo4jRelationStoreRegistration(
+    public static IServiceCollection AddNeo4jGraphStoreRegistration(
         this IServiceCollection services,
         Func<IServiceProvider, Neo4jProjectionRelationStoreOptions> optionsFactory,
-        string scope,
+        Func<IServiceProvider, string> scopeFactory,
         string providerName = ProjectionReadModelProviderNames.Neo4j)
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
-        ArgumentException.ThrowIfNullOrWhiteSpace(scope);
+        ArgumentNullException.ThrowIfNull(scopeFactory);
 
         services.AddSingleton<IProjectionStoreRegistration<IProjectionRelationStore>>(
             new DelegateProjectionStoreRegistration<IProjectionRelationStore>(
@@ -64,7 +64,7 @@ public static IServiceCollection AddNeo4jRelationStoreRegistration(
                     supportsRelationTraversal: true),
                 provider => new Neo4jProjectionRelationStore(
                     optionsFactory(provider),
-                    scope,
+                    scopeFactory(provider),
                     providerName,
                     provider.GetService<ILogger<Neo4jProjectionRelationStore>>())));
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
index 19b0532aa..d07738149 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
@@ -1,10 +1,11 @@
 # Aevatar.CQRS.Projection.Providers.Neo4j
 
-通用 Neo4j Graph ReadModel Provider。
+通用 Neo4j Provider（支持 Document/Graph 两类能力）。
 
 - 不依赖任何业务域 read model。
-- 通过 `IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>` 与上层模块解耦集成。
-- 能力声明：`Graph` 索引、schema validation。
+- 通过 `IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>` 与上层模块解耦集成（Document）。
+- 通过 `IProjectionStoreRegistration<IProjectionRelationStore>` 与上层模块解耦集成（Graph）。
+- 能力声明：`Document/Graph` 索引、schema validation。
 - 基于官方 `Neo4j.Driver` 实现连接与会话管理。
 - 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
 
@@ -12,11 +13,12 @@
 
 使用扩展方法：
 
-- `AddNeo4jReadModelStoreRegistration<TReadModel, TKey>(...)`
+- `AddNeo4jDocumentStoreRegistration<TReadModel, TKey>(...)`
+- `AddNeo4jGraphStoreRegistration(...)`
 
 关键参数：
 
-- `optionsFactory`：绑定 `Projection:ReadModel:Providers:Neo4j:*` 配置。
-- `scope`：图存储作用域（等价于 document provider 的 indexScope）。
+- `optionsFactory`：绑定 `Projection:Document:Providers:Neo4j:*` 或 `Projection:Graph:Providers:Neo4j:*` 配置。
+- `scopeFactory`：文档 scope 或 graph scope 提供器。
 - `keySelector/keyFormatter`：ReadModel 主键映射。
 - `providerName`：默认 `Neo4j`（与 `ProjectionReadModelProviderNames.Neo4j` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
index 197501287..8f68e14d2 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
@@ -58,7 +58,7 @@ public Neo4jProjectionReadModelStore(
         ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
             providerName,
             supportsIndexing: true,
-            indexKinds: [ProjectionReadModelIndexKind.Graph],
+            indexKinds: [ProjectionReadModelIndexKind.Document, ProjectionReadModelIndexKind.Graph],
             supportsAliases: false,
             supportsSchemaValidation: true,
             supportsRelations: true,
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index 860fa1fc6..dda05d3d8 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -11,12 +11,14 @@ public static IServiceCollection AddProjectionReadModelRuntime(this IServiceColl
         services.TryAddSingleton<IProjectionReadModelCapabilityValidator, ProjectionReadModelCapabilityValidatorService>();
         services.TryAddSingleton<IProjectionReadModelProviderRegistry, ProjectionReadModelProviderRegistry>();
         services.TryAddSingleton<IProjectionReadModelProviderSelector, ProjectionReadModelProviderSelector>();
-        services.TryAddSingleton<IProjectionReadModelBindingResolver, ProjectionReadModelBindingResolver>();
         services.TryAddSingleton<IProjectionStoreSelectionPlanner, ProjectionStoreSelectionPlanner>();
         services.TryAddSingleton<IProjectionReadModelStoreFactory, ProjectionReadModelStoreFactory>();
         services.TryAddSingleton<IProjectionRelationStoreProviderRegistry, ProjectionRelationStoreProviderRegistry>();
         services.TryAddSingleton<IProjectionRelationStoreProviderSelector, ProjectionRelationStoreProviderSelector>();
         services.TryAddSingleton<IProjectionRelationStoreFactory, ProjectionRelationStoreFactory>();
+        services.TryAddSingleton(typeof(IGraphProjectionStore<>), typeof(ProjectionGraphStoreAdapter<>));
+        services.TryAddSingleton(typeof(IProjectionMaterializationRouter<,>), typeof(ProjectionMaterializationRouter<,>));
+        services.TryAddSingleton<IProjectionDocumentMetadataResolver, ProjectionDocumentMetadataResolver>();
         services.TryAddSingleton<IProjectionStoreStartupValidator, ProjectionStoreStartupValidator>();
         return services;
     }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/README.md b/src/Aevatar.CQRS.Projection.Runtime/README.md
index 308cc8e98..f7dc5829b 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime/README.md
@@ -6,8 +6,9 @@
 
 - 收敛 Provider 注册查询（`IProjectionReadModelProviderRegistry`）。
 - 执行 Provider 选择策略（`IProjectionReadModelProviderSelector`）。
-- 解析 ReadModel 绑定需求（`IProjectionReadModelBindingResolver`）。
+- 按 `IDocumentReadModel/IGraphReadModel` 能力推导选择需求（`IProjectionStoreSelectionPlanner`）。
 - 统一创建 Store 并输出结构化创建日志（`IProjectionReadModelStoreFactory`）。
+- 提供 `IProjectionMaterializationRouter<TReadModel, TKey>` 与 `ProjectionGraphStoreAdapter<TReadModel>` 双写路由能力。
 
 ## DI 入口
 
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs
new file mode 100644
index 000000000..c63f2d44a
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs
@@ -0,0 +1,20 @@
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionDocumentMetadataResolver : IProjectionDocumentMetadataResolver
+{
+    private readonly IServiceProvider _serviceProvider;
+
+    public ProjectionDocumentMetadataResolver(IServiceProvider serviceProvider)
+    {
+        _serviceProvider = serviceProvider;
+    }
+
+    public DocumentIndexMetadata Resolve<TReadModel>()
+        where TReadModel : class, IDocumentReadModel
+    {
+        var provider = _serviceProvider.GetRequiredService<IReadModelDocumentMetadataProvider<TReadModel>>();
+        return provider.Metadata;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreAdapter.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreAdapter.cs
new file mode 100644
index 000000000..2642fe261
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreAdapter.cs
@@ -0,0 +1,172 @@
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionGraphStoreAdapter<TReadModel>
+    : IGraphProjectionStore<TReadModel>
+    where TReadModel : class
+{
+    private const string ManagedMarkerKey = "projectionManaged";
+    private const string ManagedMarkerValue = "true";
+    private readonly IProjectionRelationStore _relationStore;
+
+    public ProjectionGraphStoreAdapter(IProjectionRelationStore relationStore)
+    {
+        _relationStore = relationStore;
+    }
+
+    public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(readModel);
+        ct.ThrowIfCancellationRequested();
+        if (readModel is not IGraphReadModel graphReadModel)
+            return;
+
+        var scope = NormalizeToken(graphReadModel.GraphScope);
+        if (scope.Length == 0)
+        {
+            throw new InvalidOperationException(
+                $"Graph scope is required for read model '{typeof(TReadModel).FullName}'.");
+        }
+
+        var normalizedNodes = NormalizeNodes(graphReadModel.GraphNodes, scope);
+        foreach (var node in normalizedNodes)
+            await _relationStore.UpsertNodeAsync(node, ct);
+
+        var normalizedEdges = NormalizeEdges(graphReadModel.GraphEdges, scope);
+        foreach (var edge in normalizedEdges)
+            await _relationStore.UpsertEdgeAsync(edge, ct);
+
+        var anchorNodeId = ResolveAnchorNodeId(graphReadModel, normalizedNodes, normalizedEdges);
+        if (anchorNodeId.Length == 0)
+            return;
+
+        var existing = await _relationStore.GetSubgraphAsync(
+            new ProjectionRelationQuery
+            {
+                Scope = scope,
+                RootNodeId = anchorNodeId,
+                Direction = ProjectionRelationDirection.Both,
+                Depth = 8,
+                Take = 5000,
+            },
+            ct);
+
+        var targetEdgeIds = normalizedEdges
+            .Select(x => x.EdgeId)
+            .ToHashSet(StringComparer.Ordinal);
+
+        foreach (var edge in existing.Edges.Where(IsManagedEdge))
+        {
+            if (targetEdgeIds.Contains(edge.EdgeId))
+                continue;
+
+            await _relationStore.DeleteEdgeAsync(scope, edge.EdgeId, ct);
+        }
+    }
+
+    public Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default) =>
+        _relationStore.GetNeighborsAsync(query, ct);
+
+    public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default) =>
+        _relationStore.GetSubgraphAsync(query, ct);
+
+    private static string ResolveAnchorNodeId(
+        IGraphReadModel readModel,
+        IReadOnlyList<ProjectionRelationNode> nodes,
+        IReadOnlyList<ProjectionRelationEdge> edges)
+    {
+        var firstNodeId = nodes.FirstOrDefault()?.NodeId ?? "";
+        if (firstNodeId.Length > 0)
+            return firstNodeId;
+
+        var readModelId = NormalizeToken(readModel.Id);
+        if (readModelId.Length > 0)
+            return readModelId;
+
+        return edges.FirstOrDefault()?.FromNodeId ?? "";
+    }
+
+    private static bool IsManagedEdge(ProjectionRelationEdge edge)
+    {
+        return edge.Properties.TryGetValue(ManagedMarkerKey, out var markerValue) &&
+               string.Equals(markerValue, ManagedMarkerValue, StringComparison.Ordinal);
+    }
+
+    private static IReadOnlyList<ProjectionRelationNode> NormalizeNodes(
+        IReadOnlyList<GraphNodeDescriptor> graphNodes,
+        string scope)
+    {
+        if (graphNodes.Count == 0)
+            return [];
+
+        var nodesById = new Dictionary<string, ProjectionRelationNode>(StringComparer.Ordinal);
+        foreach (var graphNode in graphNodes)
+        {
+            var nodeId = NormalizeToken(graphNode.NodeId);
+            if (nodeId.Length == 0)
+                continue;
+
+            var nodeType = NormalizeToken(graphNode.NodeType);
+            if (nodeType.Length == 0)
+                nodeType = "Unknown";
+
+            nodesById[nodeId] = new ProjectionRelationNode
+            {
+                Scope = scope,
+                NodeId = nodeId,
+                NodeType = nodeType,
+                Properties = new Dictionary<string, string>(graphNode.Properties, StringComparer.Ordinal),
+                UpdatedAt = graphNode.UpdatedAt == default ? DateTimeOffset.UtcNow : graphNode.UpdatedAt,
+            };
+        }
+
+        return nodesById.Values.ToList();
+    }
+
+    private static IReadOnlyList<ProjectionRelationEdge> NormalizeEdges(
+        IReadOnlyList<GraphEdgeDescriptor> graphEdges,
+        string scope)
+    {
+        if (graphEdges.Count == 0)
+            return [];
+
+        var edgesById = new Dictionary<string, ProjectionRelationEdge>(StringComparer.Ordinal);
+        foreach (var graphEdge in graphEdges)
+        {
+            var edgeId = NormalizeToken(graphEdge.EdgeId);
+            var relationType = NormalizeToken(graphEdge.RelationType);
+            var fromNodeId = NormalizeToken(graphEdge.FromNodeId);
+            var toNodeId = NormalizeToken(graphEdge.ToNodeId);
+            if (edgeId.Length == 0 ||
+                relationType.Length == 0 ||
+                fromNodeId.Length == 0 ||
+                toNodeId.Length == 0)
+            {
+                continue;
+            }
+
+            var properties = new Dictionary<string, string>(graphEdge.Properties, StringComparer.Ordinal)
+            {
+                [ManagedMarkerKey] = ManagedMarkerValue,
+            };
+
+            edgesById[edgeId] = new ProjectionRelationEdge
+            {
+                Scope = scope,
+                EdgeId = edgeId,
+                RelationType = relationType,
+                FromNodeId = fromNodeId,
+                ToNodeId = toNodeId,
+                Properties = properties,
+                UpdatedAt = graphEdge.UpdatedAt == default ? DateTimeOffset.UtcNow : graphEdge.UpdatedAt,
+            };
+        }
+
+        return edgesById.Values.ToList();
+    }
+
+    private static string NormalizeToken(string? token) => token?.Trim() ?? "";
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs
new file mode 100644
index 000000000..64c163880
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs
@@ -0,0 +1,101 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionMaterializationRouter<TReadModel, TKey>
+    : IProjectionMaterializationRouter<TReadModel, TKey>
+    where TReadModel : class, IProjectionReadModel
+{
+    private readonly IDocumentProjectionStore<TReadModel, TKey>? _documentStore;
+    private readonly IGraphProjectionStore<TReadModel>? _graphStore;
+    private readonly ILogger<ProjectionMaterializationRouter<TReadModel, TKey>> _logger;
+    private readonly bool _requiresDocumentStore = typeof(IDocumentReadModel).IsAssignableFrom(typeof(TReadModel));
+    private readonly bool _requiresGraphStore = typeof(IGraphReadModel).IsAssignableFrom(typeof(TReadModel));
+
+    public ProjectionMaterializationRouter(
+        IDocumentProjectionStore<TReadModel, TKey>? documentStore = null,
+        IGraphProjectionStore<TReadModel>? graphStore = null,
+        ILogger<ProjectionMaterializationRouter<TReadModel, TKey>>? logger = null)
+    {
+        _documentStore = documentStore;
+        _graphStore = graphStore;
+        _logger = logger ?? NullLogger<ProjectionMaterializationRouter<TReadModel, TKey>>.Instance;
+    }
+
+    public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(readModel);
+        ct.ThrowIfCancellationRequested();
+
+        EnsureStoresReady();
+        if (_requiresDocumentStore)
+            await _documentStore!.UpsertAsync(readModel, ct);
+
+        if (_requiresGraphStore)
+            await _graphStore!.UpsertGraphAsync(readModel, ct);
+    }
+
+    public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(mutate);
+        ct.ThrowIfCancellationRequested();
+
+        EnsureStoresReady();
+        if (_documentStore == null)
+            throw new InvalidOperationException(
+                $"Projection materialization mutate requires a document store for read model '{typeof(TReadModel).FullName}'.");
+
+        await _documentStore.MutateAsync(key, mutate, ct);
+        if (!_requiresGraphStore)
+            return;
+
+        var updated = await _documentStore.GetAsync(key, ct);
+        if (updated == null)
+        {
+            _logger.LogWarning(
+                "Projection materialization graph refresh skipped because the document snapshot is missing. readModelType={ReadModelType}",
+                typeof(TReadModel).FullName);
+            return;
+        }
+
+        await _graphStore!.UpsertGraphAsync(updated, ct);
+    }
+
+    public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
+    {
+        if (_documentStore == null)
+        {
+            throw new InvalidOperationException(
+                $"Projection materialization query requires a document store for read model '{typeof(TReadModel).FullName}'.");
+        }
+
+        return _documentStore.GetAsync(key, ct);
+    }
+
+    public Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
+    {
+        if (_documentStore == null)
+        {
+            throw new InvalidOperationException(
+                $"Projection materialization query requires a document store for read model '{typeof(TReadModel).FullName}'.");
+        }
+
+        return _documentStore.ListAsync(take, ct);
+    }
+
+    private void EnsureStoresReady()
+    {
+        if (_requiresDocumentStore && _documentStore == null)
+        {
+            throw new InvalidOperationException(
+                $"Document capability is required by read model '{typeof(TReadModel).FullName}', but no document projection store is registered.");
+        }
+
+        if (_requiresGraphStore && _graphStore == null)
+        {
+            throw new InvalidOperationException(
+                $"Graph capability is required by read model '{typeof(TReadModel).FullName}', but no graph projection store is registered.");
+        }
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
index fabcb2120..bb1cb8e63 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
@@ -2,13 +2,6 @@ namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
 public sealed class ProjectionStoreSelectionPlanner : IProjectionStoreSelectionPlanner
 {
-    private readonly IProjectionReadModelBindingResolver _bindingResolver;
-
-    public ProjectionStoreSelectionPlanner(IProjectionReadModelBindingResolver bindingResolver)
-    {
-        _bindingResolver = bindingResolver;
-    }
-
     public ProjectionStoreSelectionPlan Build(
         IProjectionStoreSelectionRuntimeOptions options,
         Type readModelType,
@@ -19,19 +12,20 @@ public ProjectionStoreSelectionPlan Build(
         ArgumentNullException.ThrowIfNull(relationRequirements);
         EnsureReadModelModeSupported(options.ReadModelMode);
 
-        var readModelRequirements = _bindingResolver.Resolve(options.ReadModelBindings, readModelType);
-        var readModelProvider = NormalizeRequiredProviderName(options.ReadModelProvider);
+        var readModelRequirements = BuildReadModelRequirements(readModelType);
+        var readModelRequiresGraph = typeof(IGraphReadModel).IsAssignableFrom(readModelType);
+        var readModelProvider = NormalizeRequiredProviderName(options.DocumentProvider);
         var readModelSelectionOptions = new ProjectionReadModelStoreSelectionOptions
         {
             RequestedProviderName = readModelProvider,
             FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
         };
 
-        var mergedRelationRequirements = MergeRelationRequirements(readModelRequirements, relationRequirements);
+        var mergedRelationRequirements = MergeRelationRequirements(relationRequirements, readModelRequiresGraph);
         var relationSelectionOptions = new ProjectionReadModelStoreSelectionOptions
         {
-            RequestedProviderName = NormalizeRelationProviderName(
-                options.RelationProvider,
+            RequestedProviderName = NormalizeGraphProviderName(
+                options.GraphProvider,
                 readModelProvider),
             FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
         };
@@ -44,16 +38,28 @@ public ProjectionStoreSelectionPlan Build(
     }
 
     private static ProjectionReadModelRequirements MergeRelationRequirements(
-        ProjectionReadModelRequirements readModelRequirements,
-        ProjectionReadModelRequirements relationRequirements)
+        ProjectionReadModelRequirements relationRequirements,
+        bool readModelRequiresGraph)
     {
         return new ProjectionReadModelRequirements(
             requiresIndexing: relationRequirements.RequiresIndexing,
             requiredIndexKinds: relationRequirements.RequiredIndexKinds,
-            requiresAliases: relationRequirements.RequiresAliases || readModelRequirements.RequiresAliases,
-            requiresSchemaValidation: relationRequirements.RequiresSchemaValidation || readModelRequirements.RequiresSchemaValidation,
-            requiresRelations: relationRequirements.RequiresRelations,
-            requiresRelationTraversal: relationRequirements.RequiresRelationTraversal);
+            requiresAliases: relationRequirements.RequiresAliases,
+            requiresSchemaValidation: relationRequirements.RequiresSchemaValidation,
+            requiresRelations: relationRequirements.RequiresRelations || readModelRequiresGraph,
+            requiresRelationTraversal: relationRequirements.RequiresRelationTraversal || readModelRequiresGraph);
+    }
+
+    private static ProjectionReadModelRequirements BuildReadModelRequirements(Type readModelType)
+    {
+        var requiredIndexKinds = new List<ProjectionReadModelIndexKind>();
+
+        if (typeof(IDocumentReadModel).IsAssignableFrom(readModelType))
+            requiredIndexKinds.Add(ProjectionReadModelIndexKind.Document);
+
+        return new ProjectionReadModelRequirements(
+            requiresIndexing: requiredIndexKinds.Count > 0,
+            requiredIndexKinds: requiredIndexKinds);
     }
 
     private static string NormalizeRequiredProviderName(string providerName)
@@ -67,14 +73,14 @@ private static string NormalizeRequiredProviderName(string providerName)
         return providerName.Trim();
     }
 
-    private static string NormalizeRelationProviderName(
-        string relationProviderName,
+    private static string NormalizeGraphProviderName(
+        string graphProviderName,
         string fallbackProviderName)
     {
-        if (string.IsNullOrWhiteSpace(relationProviderName))
+        if (string.IsNullOrWhiteSpace(graphProviderName))
             return fallbackProviderName;
 
-        return relationProviderName.Trim();
+        return graphProviderName.Trim();
     }
 
     private static void EnsureReadModelModeSupported(ProjectionReadModelMode readModelMode)
@@ -83,7 +89,7 @@ private static void EnsureReadModelModeSupported(ProjectionReadModelMode readMod
             return;
 
         throw new InvalidOperationException(
-            "Projection store selection does not support Projection:ReadModel:Mode=StateOnly. " +
+            "Projection store selection does not support Projection:Document:Mode=StateOnly. " +
             "Use CustomReadModel or DefaultReadModel.");
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/DocumentIndexMetadata.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/DocumentIndexMetadata.cs
new file mode 100644
index 000000000..7abc355aa
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/DocumentIndexMetadata.cs
@@ -0,0 +1,7 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public sealed record DocumentIndexMetadata(
+    string IndexName,
+    string MappingJson,
+    IReadOnlyDictionary<string, string> Settings,
+    IReadOnlyDictionary<string, string> Aliases);
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs
new file mode 100644
index 000000000..02bbd941c
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs
@@ -0,0 +1,9 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public sealed record GraphEdgeDescriptor(
+    string EdgeId,
+    string RelationType,
+    string FromNodeId,
+    string ToNodeId,
+    IReadOnlyDictionary<string, string> Properties,
+    DateTimeOffset UpdatedAt);
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphNodeDescriptor.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphNodeDescriptor.cs
new file mode 100644
index 000000000..f719b3bb8
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphNodeDescriptor.cs
@@ -0,0 +1,7 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public sealed record GraphNodeDescriptor(
+    string NodeId,
+    string NodeType,
+    IReadOnlyDictionary<string, string> Properties,
+    DateTimeOffset UpdatedAt);
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentProjectionStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentProjectionStore.cs
new file mode 100644
index 000000000..035789d27
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentProjectionStore.cs
@@ -0,0 +1,13 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public interface IDocumentProjectionStore<TReadModel, in TKey>
+    where TReadModel : class
+{
+    Task UpsertAsync(TReadModel readModel, CancellationToken ct = default);
+
+    Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default);
+
+    Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default);
+
+    Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs
new file mode 100644
index 000000000..311541a99
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs
@@ -0,0 +1,6 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public interface IDocumentReadModel : IProjectionReadModel
+{
+    string DocumentScope { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphProjectionStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphProjectionStore.cs
new file mode 100644
index 000000000..43aeedcb1
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphProjectionStore.cs
@@ -0,0 +1,15 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public interface IGraphProjectionStore<in TReadModel>
+    where TReadModel : class
+{
+    Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct = default);
+
+    Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default);
+
+    Task<ProjectionRelationSubgraph> GetSubgraphAsync(
+        ProjectionRelationQuery query,
+        CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphReadModel.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphReadModel.cs
new file mode 100644
index 000000000..9a1e725b3
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphReadModel.cs
@@ -0,0 +1,10 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public interface IGraphReadModel : IProjectionReadModel
+{
+    string GraphScope { get; }
+
+    IReadOnlyList<GraphNodeDescriptor> GraphNodes { get; }
+
+    IReadOnlyList<GraphEdgeDescriptor> GraphEdges { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs
new file mode 100644
index 000000000..60d4af5df
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs
@@ -0,0 +1,7 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public interface IProjectionDocumentMetadataResolver
+{
+    DocumentIndexMetadata Resolve<TReadModel>()
+        where TReadModel : class, IDocumentReadModel;
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModel.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModel.cs
new file mode 100644
index 000000000..c4a09e667
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModel.cs
@@ -0,0 +1,6 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public interface IProjectionReadModel
+{
+    string Id { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs
index 994c0a730..3f7664892 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs
@@ -4,13 +4,5 @@ namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 /// Generic read-model store contract for projection state persistence/query.
 /// </summary>
 public interface IProjectionReadModelStore<TReadModel, in TKey>
-    where TReadModel : class
-{
-    Task UpsertAsync(TReadModel readModel, CancellationToken ct = default);
-
-    Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default);
-
-    Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default);
-
-    Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default);
-}
+    : IDocumentProjectionStore<TReadModel, TKey>
+    where TReadModel : class;
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IReadModelDocumentMetadataProvider.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IReadModelDocumentMetadataProvider.cs
new file mode 100644
index 000000000..9dc887eb3
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IReadModelDocumentMetadataProvider.cs
@@ -0,0 +1,7 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public interface IReadModelDocumentMetadataProvider<out TReadModel>
+    where TReadModel : class, IDocumentReadModel
+{
+    DocumentIndexMetadata Metadata { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs
index ad8f60b93..05704c7ba 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs
@@ -2,28 +2,19 @@ namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed class ProjectionReadModelRuntimeOptions : IProjectionStoreSelectionRuntimeOptions
 {
-    public ProjectionReadModelRuntimeOptions()
-    {
-        Bindings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
-    }
-
     public ProjectionReadModelMode Mode { get; set; } = ProjectionReadModelMode.CustomReadModel;
 
-    public string Provider { get; set; } = ProjectionReadModelProviderNames.InMemory;
+    public string DocumentProvider { get; set; } = ProjectionReadModelProviderNames.InMemory;
 
-    public string RelationProvider { get; set; } = "";
+    public string GraphProvider { get; set; } = ProjectionReadModelProviderNames.InMemory;
 
     public bool FailOnUnsupportedCapabilities { get; set; } = true;
 
-    public Dictionary<string, string> Bindings { get; }
-
-    string IProjectionStoreSelectionRuntimeOptions.ReadModelProvider => Provider;
+    string IProjectionStoreSelectionRuntimeOptions.DocumentProvider => DocumentProvider;
 
-    string IProjectionStoreSelectionRuntimeOptions.RelationProvider => RelationProvider;
+    string IProjectionStoreSelectionRuntimeOptions.GraphProvider => GraphProvider;
 
     bool IProjectionStoreSelectionRuntimeOptions.FailOnUnsupportedCapabilities => FailOnUnsupportedCapabilities;
 
     ProjectionReadModelMode IProjectionStoreSelectionRuntimeOptions.ReadModelMode => Mode;
-
-    IReadOnlyDictionary<string, string> IProjectionStoreSelectionRuntimeOptions.ReadModelBindings => Bindings;
 }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs
new file mode 100644
index 000000000..f66d7d1b1
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs
@@ -0,0 +1,13 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public interface IProjectionMaterializationRouter<TReadModel, in TKey>
+    where TReadModel : class, IProjectionReadModel
+{
+    Task UpsertAsync(TReadModel readModel, CancellationToken ct = default);
+
+    Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default);
+
+    Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default);
+
+    Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
index 9240b26f4..c3770f599 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
@@ -2,13 +2,11 @@ namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionStoreSelectionRuntimeOptions
 {
-    string ReadModelProvider { get; }
+    string DocumentProvider { get; }
 
-    string RelationProvider { get; }
+    string GraphProvider { get; }
 
     bool FailOnUnsupportedCapabilities { get; }
 
     ProjectionReadModelMode ReadModelMode { get; }
-
-    IReadOnlyDictionary<string, string> ReadModelBindings { get; }
 }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
index 094b93b09..140de72e9 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
@@ -13,6 +13,9 @@
 
 - 读模型存储：`IProjectionReadModelStore<,>`
 - 关系存储：`IProjectionRelationStore`
+- ReadModel 能力模型：`IProjectionReadModel`、`IDocumentReadModel`、`IGraphReadModel`
+- 双写能力抽象：`IDocumentProjectionStore<,>`、`IGraphProjectionStore<>`、`IProjectionMaterializationRouter<,>`
+- 文档索引元数据抽象：`DocumentIndexMetadata`、`IReadModelDocumentMetadataProvider<TReadModel>`、`IProjectionDocumentMetadataResolver`
 - Provider 能力建模：`ProjectionReadModelProviderCapabilities`、`IProjectionStoreProviderMetadata`
 - 能力校验：`ProjectionReadModelRequirements`、`ProjectionReadModelCapabilityValidator`
 - Provider 注册与选择：`IProjectionStoreRegistration<TStore>`、`DelegateProjectionStoreRegistration<TStore>`
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
index edb675e6c..3daf8f1e4 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
@@ -31,4 +31,11 @@ Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         int take = 200,
         WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default);
+
+    Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
+        CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
index a0babd74b..3ba84833a 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
@@ -24,4 +24,11 @@ Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         int take = 200,
         WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default);
+
+    Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
+        CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
index 065143f2c..71a5d7443 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
@@ -83,6 +83,13 @@ public sealed class WorkflowActorRelationSubgraph
     public List<WorkflowActorRelationItem> Edges { get; set; } = [];
 }
 
+public sealed class WorkflowActorGraphEnrichedSnapshot
+{
+    public WorkflowActorSnapshot Snapshot { get; set; } = new();
+
+    public WorkflowActorRelationSubgraph Subgraph { get; set; } = new();
+}
+
 public sealed record WorkflowTopologyEdge(string Parent, string Child);
 
 public enum WorkflowRunProjectionScope
diff --git a/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs b/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
index 56c34b67a..d0e0a68bc 100644
--- a/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
+++ b/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
@@ -82,4 +82,17 @@ public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
 
         return await _projectionPort.GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
     }
+
+    public async Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
+        CancellationToken ct = default)
+    {
+        if (!ActorQueryEnabled || string.IsNullOrWhiteSpace(actorId))
+            return null;
+
+        return await _projectionPort.GetActorGraphEnrichedSnapshotAsync(actorId, depth, take, options, ct);
+    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs b/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
index 70f4ca4dc..74a59399f 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
@@ -27,6 +27,10 @@ public static void Map(RouteGroupBuilder group)
 
         group.MapGet("/actors/{actorId}/relation-subgraph", GetActorRelationSubgraph)
             .Produces(StatusCodes.Status200OK);
+
+        group.MapGet("/actors/{actorId}/graph-enriched", GetActorGraphEnrichedSnapshot)
+            .Produces(StatusCodes.Status200OK)
+            .Produces(StatusCodes.Status404NotFound);
     }
 
     internal static async Task<IResult> ListAgents(
@@ -86,6 +90,20 @@ internal static async Task<IResult> GetActorRelationSubgraph(
         return Results.Ok(subgraph);
     }
 
+    internal static async Task<IResult> GetActorGraphEnrichedSnapshot(
+        string actorId,
+        IWorkflowExecutionQueryApplicationService queryService,
+        int depth = 2,
+        int take = 200,
+        string? direction = null,
+        string[]? relationTypes = null,
+        CancellationToken ct = default)
+    {
+        var relationOptions = BuildRelationQueryOptions(direction, relationTypes);
+        var graphEnriched = await queryService.GetActorGraphEnrichedSnapshotAsync(actorId, depth, take, relationOptions, ct);
+        return graphEnriched == null ? Results.NotFound() : Results.Ok(graphEnriched);
+    }
+
     private static WorkflowActorRelationQueryOptions BuildRelationQueryOptions(
         string? direction,
         string[]? relationTypes)
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index ee421bc71..52e9ce1d7 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -1,11 +1,13 @@
 using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Workflow.Projection.Configuration;
+using Aevatar.Workflow.Projection.Metadata;
 using Aevatar.Workflow.Projection.Orchestration;
 using Aevatar.Workflow.Projection.ReadModels;
 using Aevatar.Workflow.Application.Abstractions.Projections;
 using Aevatar.Workflow.Application.Abstractions.Runs;
 using Aevatar.Foundation.Abstractions.Deduplication;
 using Aevatar.CQRS.Projection.Runtime.DependencyInjection;
+using Aevatar.CQRS.Projection.Runtime.Runtime;
 using Aevatar.CQRS.Projection.Core.DependencyInjection;
 using Aevatar.CQRS.Projection.Core.Orchestration;
 using Aevatar.CQRS.Projection.Core.Streaming;
@@ -25,11 +27,6 @@ public static class ServiceCollectionExtensions
     private static readonly Type ProjectionProjectorContract = typeof(IProjectionProjector<,>);
     private static readonly Type WorkflowExecutionReducerContract = typeof(IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>);
     private static readonly Type WorkflowExecutionProjectorContract = typeof(IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>);
-    private static readonly ProjectionReadModelRequirements WorkflowRelationRequirements = new(
-        requiresRelations: true,
-        requiresRelationTraversal: true,
-        requiresAliases: false,
-        requiresSchemaValidation: false);
 
     public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         this IServiceCollection services,
@@ -45,8 +42,10 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
             sp.GetRequiredService<ProjectionReadModelRuntimeOptions>());
         services.TryAddSingleton<IEventDeduplicator, PassthroughEventDeduplicator>();
         services.AddProjectionReadModelRuntime();
-        RegisterWorkflowReadModelStoreSelector(services);
-        RegisterWorkflowRelationStoreSelector(services);
+        services.TryAddSingleton<IReadModelDocumentMetadataProvider<WorkflowExecutionReport>, WorkflowExecutionReportDocumentMetadataProvider>();
+        RegisterWorkflowDocumentStoreSelector(services);
+        RegisterWorkflowGraphStoreSelector(services);
+        RegisterWorkflowMaterializationRouter(services);
         services.TryAddSingleton<IProjectionClock, SystemProjectionClock>();
         services.TryAddSingleton<IWorkflowExecutionProjectionContextFactory, DefaultWorkflowExecutionProjectionContextFactory>();
         services.TryAddSingleton<WorkflowExecutionReadModelMapper>();
@@ -124,7 +123,7 @@ private static void RegisterFromAssembly(IServiceCollection services, Assembly a
             ProjectionProjectorContract);
     }
 
-    private static void RegisterWorkflowReadModelStoreSelector(IServiceCollection services)
+    private static void RegisterWorkflowDocumentStoreSelector(IServiceCollection services)
     {
         services.Replace(ServiceDescriptor.Singleton<IProjectionReadModelStore<WorkflowExecutionReport, string>>(sp =>
         {
@@ -136,9 +135,12 @@ private static void RegisterWorkflowReadModelStoreSelector(IServiceCollection se
                 selectionPlan.ReadModelSelectionOptions,
                 selectionPlan.ReadModelRequirements);
         }));
+
+        services.Replace(ServiceDescriptor.Singleton<IDocumentProjectionStore<WorkflowExecutionReport, string>>(sp =>
+            sp.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>()));
     }
 
-    private static void RegisterWorkflowRelationStoreSelector(IServiceCollection services)
+    private static void RegisterWorkflowGraphStoreSelector(IServiceCollection services)
     {
         services.Replace(ServiceDescriptor.Singleton<IProjectionRelationStore>(sp =>
         {
@@ -150,6 +152,18 @@ private static void RegisterWorkflowRelationStoreSelector(IServiceCollection ser
                 selectionPlan.RelationSelectionOptions,
                 selectionPlan.RelationRequirements);
         }));
+
+        services.Replace(ServiceDescriptor.Singleton<IGraphProjectionStore<WorkflowExecutionReport>>(sp =>
+            new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(
+                sp.GetRequiredService<IProjectionRelationStore>())));
+    }
+
+    private static void RegisterWorkflowMaterializationRouter(IServiceCollection services)
+    {
+        services.Replace(ServiceDescriptor.Singleton<IProjectionMaterializationRouter<WorkflowExecutionReport, string>>(sp =>
+            new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
+                sp.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>(),
+                sp.GetRequiredService<IGraphProjectionStore<WorkflowExecutionReport>>())));
     }
 
     private static ProjectionStoreSelectionPlan BuildSelectionPlan(IServiceProvider serviceProvider)
@@ -159,7 +173,7 @@ private static ProjectionStoreSelectionPlan BuildSelectionPlan(IServiceProvider
         return selectionPlanner.Build(
             runtimeOptions,
             typeof(WorkflowExecutionReport),
-            WorkflowRelationRequirements);
+            new ProjectionReadModelRequirements());
     }
 
     private sealed class PassthroughEventDeduplicator : IEventDeduplicator
diff --git a/src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs b/src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs
new file mode 100644
index 000000000..e61a80954
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs
@@ -0,0 +1,13 @@
+using Aevatar.Workflow.Projection.ReadModels;
+
+namespace Aevatar.Workflow.Projection.Metadata;
+
+public sealed class WorkflowExecutionReportDocumentMetadataProvider
+    : IReadModelDocumentMetadataProvider<WorkflowExecutionReport>
+{
+    public DocumentIndexMetadata Metadata { get; } = new(
+        IndexName: "workflow-execution-reports",
+        MappingJson: "{}",
+        Settings: new Dictionary<string, string>(StringComparer.Ordinal),
+        Aliases: new Dictionary<string, string>(StringComparer.Ordinal));
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
index 56b60c14d..59f6eae73 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
@@ -29,4 +29,11 @@ Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         int take = 200,
         WorkflowActorRelationQueryOptions? options = null,
         CancellationToken ct = default);
+
+    Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
+        CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
index f916a7a70..96e263352 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
@@ -52,6 +52,14 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         CancellationToken ct = default) =>
         GetRelationSubgraphInternalAsync(actorId, depth, take, options, ct);
 
+    public Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
+        CancellationToken ct = default) =>
+        GetGraphEnrichedInternalAsync(actorId, depth, take, options, ct);
+
     protected override Task<WorkflowActorSnapshot?> ReadSnapshotCoreAsync(
         string entityId,
         CancellationToken ct)
@@ -113,4 +121,17 @@ private async Task<WorkflowActorRelationSubgraph> GetRelationSubgraphInternalAsy
 
         return await _queryReader.GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
     }
+
+    private async Task<WorkflowActorGraphEnrichedSnapshot?> GetGraphEnrichedInternalAsync(
+        string actorId,
+        int depth,
+        int take,
+        WorkflowActorRelationQueryOptions? options,
+        CancellationToken ct)
+    {
+        if (!QueryEnabledCore || string.IsNullOrWhiteSpace(actorId))
+            return null;
+
+        return await _queryReader.GetActorGraphEnrichedSnapshotAsync(actorId, depth, take, options, ct);
+    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
index dd264704c..d9da2d3c1 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
@@ -5,25 +5,25 @@ namespace Aevatar.Workflow.Projection.Orchestration;
 
 public sealed class WorkflowProjectionQueryReader : IWorkflowProjectionQueryReader
 {
-    private readonly IProjectionReadModelStore<WorkflowExecutionReport, string> _store;
-    private readonly IProjectionRelationStore _relationStore;
+    private readonly IDocumentProjectionStore<WorkflowExecutionReport, string> _documentStore;
+    private readonly IGraphProjectionStore<WorkflowExecutionReport> _graphStore;
     private readonly WorkflowExecutionReadModelMapper _mapper;
 
     public WorkflowProjectionQueryReader(
-        IProjectionReadModelStore<WorkflowExecutionReport, string> store,
+        IDocumentProjectionStore<WorkflowExecutionReport, string> documentStore,
         WorkflowExecutionReadModelMapper mapper,
-        IProjectionRelationStore relationStore)
+        IGraphProjectionStore<WorkflowExecutionReport> graphStore)
     {
-        _store = store;
+        _documentStore = documentStore;
         _mapper = mapper;
-        _relationStore = relationStore;
+        _graphStore = graphStore;
     }
 
     public async Task<WorkflowActorSnapshot?> GetActorSnapshotAsync(
         string actorId,
         CancellationToken ct = default)
     {
-        var report = await _store.GetAsync(actorId, ct);
+        var report = await _documentStore.GetAsync(actorId, ct);
         return report == null ? null : _mapper.ToActorSnapshot(report);
     }
 
@@ -32,7 +32,7 @@ public async Task<IReadOnlyList<WorkflowActorSnapshot>> ListActorSnapshotsAsync(
         CancellationToken ct = default)
     {
         var boundedTake = Math.Clamp(take, 1, 1000);
-        var reports = await _store.ListAsync(boundedTake, ct);
+        var reports = await _documentStore.ListAsync(boundedTake, ct);
         return reports
             .Select(_mapper.ToActorSnapshot)
             .ToList();
@@ -44,7 +44,7 @@ public async Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsy
         CancellationToken ct = default)
     {
         var boundedTake = Math.Clamp(take, 1, 1000);
-        var report = await _store.GetAsync(actorId, ct);
+        var report = await _documentStore.GetAsync(actorId, ct);
         if (report == null)
             return [];
 
@@ -68,7 +68,7 @@ public async Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsy
         var boundedTake = Math.Clamp(take, 1, 1000);
         var direction = MapDirection(options?.Direction ?? WorkflowActorRelationDirection.Both);
         var relationTypes = NormalizeRelationTypes(options?.RelationTypes);
-        var edges = await _relationStore.GetNeighborsAsync(
+        var edges = await _graphStore.GetNeighborsAsync(
             new ProjectionRelationQuery
             {
                 Scope = WorkflowExecutionRelationConstants.Scope,
@@ -96,7 +96,7 @@ public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         var boundedTake = Math.Clamp(take, 1, 2000);
         var direction = MapDirection(options?.Direction ?? WorkflowActorRelationDirection.Both);
         var relationTypes = NormalizeRelationTypes(options?.RelationTypes);
-        var subgraph = await _relationStore.GetSubgraphAsync(
+        var subgraph = await _graphStore.GetSubgraphAsync(
             new ProjectionRelationQuery
             {
                 Scope = WorkflowExecutionRelationConstants.Scope,
@@ -110,6 +110,25 @@ public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         return _mapper.ToActorRelationSubgraph(actorIdValue, subgraph);
     }
 
+    public async Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
+        CancellationToken ct = default)
+    {
+        var snapshot = await GetActorSnapshotAsync(actorId, ct);
+        if (snapshot == null)
+            return null;
+
+        var subgraph = await GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
+        return new WorkflowActorGraphEnrichedSnapshot
+        {
+            Snapshot = snapshot,
+            Subgraph = subgraph,
+        };
+    }
+
     private static ProjectionRelationDirection MapDirection(WorkflowActorRelationDirection direction)
     {
         return direction switch
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
index 8fff12c53..3044a45fd 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
@@ -5,14 +5,14 @@ namespace Aevatar.Workflow.Projection.Orchestration;
 
 public sealed class WorkflowProjectionReadModelUpdater : IWorkflowProjectionReadModelUpdater
 {
-    private readonly IProjectionReadModelStore<WorkflowExecutionReport, string> _store;
+    private readonly IProjectionMaterializationRouter<WorkflowExecutionReport, string> _materializationRouter;
     private readonly IProjectionClock _clock;
 
     public WorkflowProjectionReadModelUpdater(
-        IProjectionReadModelStore<WorkflowExecutionReport, string> store,
+        IProjectionMaterializationRouter<WorkflowExecutionReport, string> materializationRouter,
         IProjectionClock clock)
     {
-        _store = store;
+        _materializationRouter = materializationRouter;
         _clock = clock;
     }
 
@@ -22,7 +22,7 @@ public Task RefreshMetadataAsync(
         CancellationToken ct = default)
     {
         var updatedAt = _clock.UtcNow;
-        return _store.MutateAsync(actorId, report =>
+        return _materializationRouter.MutateAsync(actorId, report =>
         {
             report.CommandId = context.CommandId;
             report.WorkflowName = context.WorkflowName;
@@ -42,7 +42,7 @@ public Task MarkStoppedAsync(
         CancellationToken ct = default)
     {
         var updatedAt = _clock.UtcNow;
-        return _store.MutateAsync(actorId, report =>
+        return _materializationRouter.MutateAsync(actorId, report =>
         {
             if (report.CompletionStatus == WorkflowExecutionCompletionStatus.Running)
                 report.CompletionStatus = WorkflowExecutionCompletionStatus.Stopped;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index 077ebe3b5..7e9b26ada 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -9,12 +9,6 @@ namespace Aevatar.Workflow.Projection.Orchestration;
 
 internal sealed class WorkflowReadModelStartupValidationHostedService : IHostedService
 {
-    private static readonly ProjectionReadModelRequirements WorkflowRelationRequirements = new(
-        requiresRelations: true,
-        requiresRelationTraversal: true,
-        requiresAliases: false,
-        requiresSchemaValidation: false);
-
     private readonly IServiceProvider _serviceProvider;
     private readonly WorkflowExecutionProjectionOptions _options;
     private readonly IProjectionStoreSelectionPlanner _selectionPlanner;
@@ -47,7 +41,7 @@ public Task StartAsync(CancellationToken cancellationToken)
         var selectionPlan = _selectionPlanner.Build(
             _selectionRuntimeOptions,
             typeof(WorkflowExecutionReport),
-            WorkflowRelationRequirements);
+            new ProjectionReadModelRequirements());
 
         if (_options.ValidateReadModelProviderOnStartup)
         {
diff --git a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
index 334307b16..f85dd6006 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
@@ -10,17 +10,20 @@ namespace Aevatar.Workflow.Projection.Projectors;
 public sealed class WorkflowExecutionReadModelProjector
     : IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>
 {
-    private readonly IProjectionReadModelStore<WorkflowExecutionReport, string> _store;
+    private readonly IProjectionMaterializationRouter<WorkflowExecutionReport, string> _materializationRouter;
     private readonly IEventDeduplicator _deduplicator;
+    private readonly IProjectionClock _clock;
     private readonly IReadOnlyDictionary<string, IReadOnlyList<IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>>> _reducersByType;
 
     public WorkflowExecutionReadModelProjector(
-        IProjectionReadModelStore<WorkflowExecutionReport, string> store,
+        IProjectionMaterializationRouter<WorkflowExecutionReport, string> materializationRouter,
         IEventDeduplicator deduplicator,
+        IProjectionClock clock,
         IEnumerable<IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>> reducers)
     {
-        _store = store;
+        _materializationRouter = materializationRouter;
         _deduplicator = deduplicator;
+        _clock = clock;
         _reducersByType = reducers
             .GroupBy(x => x.EventTypeUrl, StringComparer.Ordinal)
             .ToDictionary(
@@ -48,7 +51,7 @@ public ValueTask InitializeAsync(WorkflowExecutionProjectionContext context, Can
             Input = context.Input,
         };
         report.Summary = new WorkflowExecutionSummary();
-        return new ValueTask(_store.UpsertAsync(report, ct));
+        return new ValueTask(_materializationRouter.UpsertAsync(report, ct));
     }
 
     public async ValueTask ProjectAsync(WorkflowExecutionProjectionContext context, EventEnvelope envelope, CancellationToken ct = default)
@@ -65,8 +68,8 @@ public async ValueTask ProjectAsync(WorkflowExecutionProjectionContext context,
                 return;
         }
 
-        var now = ResolveEventTimestamp(envelope);
-        await _store.MutateAsync(context.RootActorId, report =>
+        var now = ResolveEventTimestamp(envelope, _clock.UtcNow);
+        await _materializationRouter.MutateAsync(context.RootActorId, report =>
         {
             var mutated = false;
             foreach (var reducer in reducers)
@@ -85,8 +88,8 @@ public ValueTask CompleteAsync(
         IReadOnlyList<WorkflowExecutionTopologyEdge> topology,
         CancellationToken ct = default)
     {
-        var completedAt = DateTimeOffset.UtcNow;
-        return new ValueTask(_store.MutateAsync(context.RootActorId, report =>
+        var completedAt = _clock.UtcNow;
+        return new ValueTask(_materializationRouter.MutateAsync(context.RootActorId, report =>
         {
             report.Topology = topology.Select(x => new WorkflowExecutionTopologyEdge(x.Parent, x.Child)).ToList();
             report.TopologySource = WorkflowExecutionTopologySource.RuntimeSnapshot;
@@ -98,11 +101,11 @@ public ValueTask CompleteAsync(
         }, ct));
     }
 
-    private static DateTimeOffset ResolveEventTimestamp(EventEnvelope envelope)
+    private static DateTimeOffset ResolveEventTimestamp(EventEnvelope envelope, DateTimeOffset fallbackUtcNow)
     {
         var ts = envelope.Timestamp;
         if (ts == null)
-            return DateTimeOffset.UtcNow;
+            return fallbackUtcNow;
 
         var dt = ts.ToDateTime();
         if (dt.Kind != DateTimeKind.Utc)
diff --git a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
deleted file mode 100644
index 48310783b..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionRelationProjector.cs
+++ /dev/null
@@ -1,361 +0,0 @@
-using System.Security.Cryptography;
-using System.Text;
-
-namespace Aevatar.Workflow.Projection.Projectors;
-
-public sealed class WorkflowExecutionRelationProjector
-    : IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>
-{
-    private const string UnknownToken = "unknown";
-    private readonly IProjectionRelationStore _relationStore;
-
-    public WorkflowExecutionRelationProjector(IProjectionRelationStore relationStore)
-    {
-        _relationStore = relationStore;
-    }
-
-    public async ValueTask InitializeAsync(WorkflowExecutionProjectionContext context, CancellationToken ct = default)
-    {
-        var runNodeId = BuildRunNodeId(context.RootActorId, context.CommandId);
-        var now = context.StartedAt;
-        await _relationStore.UpsertNodeAsync(
-            BuildActorNode(context.RootActorId, context.WorkflowName, now),
-            ct);
-        await _relationStore.UpsertNodeAsync(
-            BuildRunNode(runNodeId, context.RootActorId, context.WorkflowName, context.CommandId, context.Input, now),
-            ct);
-        await _relationStore.UpsertEdgeAsync(
-            BuildEdge(
-                context.RootActorId,
-                runNodeId,
-                WorkflowExecutionRelationConstants.RelationOwns,
-                now),
-            ct);
-    }
-
-    public async ValueTask ProjectAsync(
-        WorkflowExecutionProjectionContext context,
-        EventEnvelope envelope,
-        CancellationToken ct = default)
-    {
-        var payload = envelope.Payload;
-        if (payload == null)
-            return;
-
-        var runNodeId = BuildRunNodeId(context.RootActorId, context.CommandId);
-        var now = ResolveEventTimestamp(envelope);
-
-        if (payload.Is(StepRequestEvent.Descriptor))
-        {
-            var evt = payload.Unpack<StepRequestEvent>();
-            await UpsertStepRelationAsync(
-                context,
-                runNodeId,
-                evt.StepId,
-                evt.StepType,
-                evt.TargetRole,
-                workerId: "",
-                success: null,
-                now,
-                ct);
-            return;
-        }
-
-        if (payload.Is(StepCompletedEvent.Descriptor))
-        {
-            var evt = payload.Unpack<StepCompletedEvent>();
-            await UpsertStepRelationAsync(
-                context,
-                runNodeId,
-                evt.StepId,
-                stepType: "",
-                targetRole: "",
-                evt.WorkerId,
-                evt.Success,
-                now,
-                ct);
-        }
-    }
-
-    public async ValueTask CompleteAsync(
-        WorkflowExecutionProjectionContext context,
-        IReadOnlyList<WorkflowExecutionTopologyEdge> topology,
-        CancellationToken ct = default)
-    {
-        var completedAt = DateTimeOffset.UtcNow;
-        var runNodeId = BuildRunNodeId(context.RootActorId, context.CommandId);
-
-        await _relationStore.UpsertNodeAsync(
-            BuildActorNode(context.RootActorId, context.WorkflowName, completedAt),
-            ct);
-        await _relationStore.UpsertNodeAsync(
-            BuildRunNode(
-                runNodeId,
-                context.RootActorId,
-                context.WorkflowName,
-                context.CommandId,
-                context.Input,
-                completedAt),
-            ct);
-        await _relationStore.UpsertEdgeAsync(
-            BuildEdge(
-                context.RootActorId,
-                runNodeId,
-                WorkflowExecutionRelationConstants.RelationOwns,
-                completedAt),
-            ct);
-
-        foreach (var edge in topology)
-        {
-            var rawParentNodeId = edge.Parent?.Trim() ?? "";
-            var rawChildNodeId = edge.Child?.Trim() ?? "";
-            if (rawParentNodeId.Length == 0 || rawChildNodeId.Length == 0)
-                continue;
-            var parentNodeId = NormalizeToken(rawParentNodeId);
-            var childNodeId = NormalizeToken(rawChildNodeId);
-
-            await _relationStore.UpsertNodeAsync(
-                BuildActorNode(parentNodeId, context.WorkflowName, completedAt),
-                ct);
-            await _relationStore.UpsertNodeAsync(
-                BuildActorNode(childNodeId, context.WorkflowName, completedAt),
-                ct);
-            await _relationStore.UpsertEdgeAsync(
-                BuildEdge(
-                    parentNodeId,
-                    childNodeId,
-                    WorkflowExecutionRelationConstants.RelationChildOf,
-                    completedAt),
-                ct);
-        }
-    }
-
-    private async Task UpsertStepRelationAsync(
-        WorkflowExecutionProjectionContext context,
-        string runNodeId,
-        string stepId,
-        string stepType,
-        string targetRole,
-        string workerId,
-        bool? success,
-        DateTimeOffset updatedAt,
-        CancellationToken ct)
-    {
-        var rawStepId = stepId?.Trim() ?? "";
-        if (rawStepId.Length == 0)
-            return;
-
-        var normalizedStepId = NormalizeToken(rawStepId);
-        var stepNodeId = BuildStepNodeId(context.RootActorId, context.CommandId, normalizedStepId);
-        var stepTypeValue = stepType?.Trim() ?? "";
-        var targetRoleValue = targetRole?.Trim() ?? "";
-        var workerIdValue = workerId?.Trim() ?? "";
-        var successValue = success;
-        if (stepTypeValue.Length == 0 ||
-            targetRoleValue.Length == 0 ||
-            workerIdValue.Length == 0 ||
-            !successValue.HasValue)
-        {
-            var existingNode = await TryGetNodeAsync(stepNodeId, ct);
-            if (existingNode != null)
-            {
-                if (stepTypeValue.Length == 0 &&
-                    existingNode.Properties.TryGetValue("stepType", out var existingStepType))
-                {
-                    stepTypeValue = existingStepType;
-                }
-
-                if (targetRoleValue.Length == 0 &&
-                    existingNode.Properties.TryGetValue("targetRole", out var existingTargetRole))
-                {
-                    targetRoleValue = existingTargetRole;
-                }
-
-                if (workerIdValue.Length == 0 &&
-                    existingNode.Properties.TryGetValue("workerId", out var existingWorkerId))
-                {
-                    workerIdValue = existingWorkerId;
-                }
-
-                if (!successValue.HasValue &&
-                    existingNode.Properties.TryGetValue("success", out var existingSuccess) &&
-                    bool.TryParse(existingSuccess, out var parsedSuccess))
-                {
-                    successValue = parsedSuccess;
-                }
-            }
-        }
-
-        await _relationStore.UpsertNodeAsync(
-            BuildStepNode(
-                stepNodeId,
-                context.RootActorId,
-                context.CommandId,
-                normalizedStepId,
-                stepTypeValue,
-                targetRoleValue,
-                workerIdValue,
-                successValue,
-                updatedAt),
-            ct);
-        await _relationStore.UpsertEdgeAsync(
-            BuildEdge(
-                runNodeId,
-                stepNodeId,
-                WorkflowExecutionRelationConstants.RelationContainsStep,
-                updatedAt),
-            ct);
-    }
-
-    private async Task<ProjectionRelationNode?> TryGetNodeAsync(
-        string nodeId,
-        CancellationToken ct)
-    {
-        var subgraph = await _relationStore.GetSubgraphAsync(
-            new ProjectionRelationQuery
-            {
-                Scope = WorkflowExecutionRelationConstants.Scope,
-                RootNodeId = nodeId,
-                Direction = ProjectionRelationDirection.Both,
-                Depth = 1,
-                Take = 1,
-            },
-            ct);
-        return subgraph.Nodes.FirstOrDefault(x =>
-            string.Equals(x.NodeId, nodeId, StringComparison.Ordinal) &&
-            x.Properties.Count > 0);
-    }
-
-    private static ProjectionRelationNode BuildActorNode(
-        string actorId,
-        string workflowName,
-        DateTimeOffset updatedAt)
-    {
-        return new ProjectionRelationNode
-        {
-            Scope = WorkflowExecutionRelationConstants.Scope,
-            NodeId = NormalizeToken(actorId),
-            NodeType = WorkflowExecutionRelationConstants.ActorNodeType,
-            Properties = new Dictionary<string, string>(StringComparer.Ordinal)
-            {
-                ["workflowName"] = workflowName ?? "",
-            },
-            UpdatedAt = updatedAt,
-        };
-    }
-
-    private static ProjectionRelationNode BuildRunNode(
-        string runNodeId,
-        string rootActorId,
-        string workflowName,
-        string commandId,
-        string input,
-        DateTimeOffset updatedAt)
-    {
-        return new ProjectionRelationNode
-        {
-            Scope = WorkflowExecutionRelationConstants.Scope,
-            NodeId = runNodeId,
-            NodeType = WorkflowExecutionRelationConstants.RunNodeType,
-            Properties = new Dictionary<string, string>(StringComparer.Ordinal)
-            {
-                ["rootActorId"] = NormalizeToken(rootActorId),
-                ["workflowName"] = workflowName ?? "",
-                ["commandId"] = NormalizeToken(commandId),
-                ["input"] = input ?? "",
-            },
-            UpdatedAt = updatedAt,
-        };
-    }
-
-    private static ProjectionRelationNode BuildStepNode(
-        string stepNodeId,
-        string rootActorId,
-        string commandId,
-        string stepId,
-        string stepType,
-        string targetRole,
-        string workerId,
-        bool? success,
-        DateTimeOffset updatedAt)
-    {
-        return new ProjectionRelationNode
-        {
-            Scope = WorkflowExecutionRelationConstants.Scope,
-            NodeId = stepNodeId,
-            NodeType = WorkflowExecutionRelationConstants.StepNodeType,
-            Properties = new Dictionary<string, string>(StringComparer.Ordinal)
-            {
-                ["rootActorId"] = NormalizeToken(rootActorId),
-                ["commandId"] = NormalizeToken(commandId),
-                ["stepId"] = NormalizeToken(stepId),
-                ["stepType"] = stepType ?? "",
-                ["targetRole"] = targetRole ?? "",
-                ["workerId"] = workerId ?? "",
-                ["success"] = success?.ToString() ?? "",
-            },
-            UpdatedAt = updatedAt,
-        };
-    }
-
-    private static ProjectionRelationEdge BuildEdge(
-        string fromNodeId,
-        string toNodeId,
-        string relationType,
-        DateTimeOffset updatedAt)
-    {
-        var normalizedFromNodeId = NormalizeToken(fromNodeId);
-        var normalizedToNodeId = NormalizeToken(toNodeId);
-        var normalizedRelationType = NormalizeToken(relationType);
-        return new ProjectionRelationEdge
-        {
-            Scope = WorkflowExecutionRelationConstants.Scope,
-            EdgeId = BuildEdgeId(normalizedRelationType, normalizedFromNodeId, normalizedToNodeId),
-            FromNodeId = normalizedFromNodeId,
-            ToNodeId = normalizedToNodeId,
-            RelationType = normalizedRelationType,
-            UpdatedAt = updatedAt,
-            Properties = new Dictionary<string, string>(StringComparer.Ordinal),
-        };
-    }
-
-    private static string BuildRunNodeId(string rootActorId, string commandId)
-    {
-        var normalizedRootActorId = NormalizeToken(rootActorId);
-        var normalizedCommandId = NormalizeToken(commandId);
-        return $"run:{normalizedRootActorId}:{normalizedCommandId}";
-    }
-
-    private static string BuildStepNodeId(string rootActorId, string commandId, string stepId)
-    {
-        var normalizedRootActorId = NormalizeToken(rootActorId);
-        var normalizedCommandId = NormalizeToken(commandId);
-        var normalizedStepId = NormalizeToken(stepId);
-        return $"step:{normalizedRootActorId}:{normalizedCommandId}:{normalizedStepId}";
-    }
-
-    private static string BuildEdgeId(string relationType, string fromNodeId, string toNodeId)
-    {
-        var payload = $"{relationType}|{fromNodeId}|{toNodeId}";
-        var hash = SHA256.HashData(Encoding.UTF8.GetBytes(payload));
-        return $"{relationType}:{Convert.ToHexString(hash.AsSpan(0, 8))}";
-    }
-
-    private static string NormalizeToken(string token)
-    {
-        var normalized = token?.Trim() ?? "";
-        return normalized.Length == 0 ? UnknownToken : normalized;
-    }
-
-    private static DateTimeOffset ResolveEventTimestamp(EventEnvelope envelope)
-    {
-        var ts = envelope.Timestamp;
-        if (ts == null)
-            return DateTimeOffset.UtcNow;
-
-        var dt = ts.ToDateTime();
-        if (dt.Kind != DateTimeKind.Utc)
-            dt = DateTime.SpecifyKind(dt, DateTimeKind.Utc);
-        return new DateTimeOffset(dt);
-    }
-}
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index 1d9056a19..f30838fcc 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -6,7 +6,7 @@
 
 - 应用层投影端口实现：
   - `IWorkflowExecutionProjectionLifecyclePort`（`Ensure/Attach/Detach/Release`）
-  - `IWorkflowExecutionProjectionQueryPort`（`Snapshot/Timeline/Relations/Subgraph`）
+  - `IWorkflowExecutionProjectionQueryPort`（`Snapshot/Timeline/Relations/Subgraph/GraphEnriched`）
   - 默认实现分别为 `WorkflowExecutionProjectionLifecycleService` 与 `WorkflowExecutionProjectionQueryService`
   - 两个实现分别继承 `ProjectionLifecyclePortServiceBase` / `ProjectionQueryPortServiceBase`，通用端口编排已下沉到 `Aevatar.CQRS.Projection.Core`
 - 编排组件拆分（避免单类过重）：
@@ -18,7 +18,7 @@
   - `WorkflowProjectionSinkFailurePolicy`（sink 异常策略）
   - `WorkflowProjectionReadModelUpdater`（read model 元信息更新）
   - `WorkflowProjectionQueryReader`（query 映射读取）
-  - Store 选择统一由 `IProjectionStoreSelectionPlanner` 执行（Workflow 仅提供 relation 需求，不持有 provider/index kind 决策）
+  - Store 选择统一由 `IProjectionStoreSelectionPlanner` 执行（基于 `IDocumentReadModel/IGraphReadModel` 能力自动决策）
 - 领域上下文：`IWorkflowExecutionProjectionContextFactory`、`WorkflowExecutionProjectionContext`
 - 实时输出契约：`WorkflowRunEvent`、`IWorkflowRunEventSink`、`WorkflowRunEventChannel`（定义于 `Aevatar.Workflow.Application.Abstractions`）
 - 领域投影实现：reducers、projectors、read model（不包含 Provider Store 实现）
@@ -38,7 +38,7 @@
 
 1. `EnsureActorProjectionAsync` 由 `WorkflowExecutionProjectionLifecycleService` 转发到 `WorkflowProjectionActivationService`，先通过 `WorkflowProjectionLeaseManager`（底层复用 `Aevatar.CQRS.Projection.Core` ownership coordinator）申请 ownership，再创建 projection 上下文并注册 actor stream 订阅
 2. 每条 `EventEnvelope` 进入统一 coordinator，一对多调用已注册 projector
-3. `WorkflowExecutionReadModelProjector` 驱动 reducers 生成并更新 read model
+3. `WorkflowExecutionReadModelProjector` 驱动 reducers 生成并更新 read model，并通过 `IProjectionMaterializationRouter` 执行 Document/Graph 单写或双写
 4. AI 通用事件通过 `Aevatar.Workflow.Extensions.AIProjection` 扩展接入，扩展内部复用 `Aevatar.AI.Projection` 的默认 applier + reducer，将事件写入 `WorkflowExecutionReport` 的 AI 能力字段，业务层无需重复维护映射代码
 5. AGUI 分支与读模型分支共享同一输入事件流；AGUI projector 将 run 输出发布到 `workflow-run:{actorId}:{commandId}` 事件流
 
@@ -82,33 +82,28 @@ FAQ：
   - 实现 `IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>`
   - 在 DI 中注册
 - 扩展 ReadModel Provider（推荐）：
-  - 实现 `IProjectionStoreRegistration<IProjectionReadModelStore<WorkflowExecutionReport, string>>`
+  - 文档存储注册：`IProjectionStoreRegistration<IProjectionReadModelStore<WorkflowExecutionReport, string>>`
+  - 图存储注册：`IProjectionStoreRegistration<IProjectionRelationStore>`
   - 在 Host/Extensions 侧注册（例如 `Aevatar.Workflow.Extensions.Hosting.AddWorkflowProjectionReadModelProviders(...)`）
-  - 通过 `Projection:ReadModel:*` 配置选择 Provider（Workflow 层不再暴露 provider 选择字段）
+  - 通过 `Projection:Document:*` 与 `Projection:Graph:*` 配置选择 Provider
 
 ## Provider 配置
 
-- Provider 选择统一配置入口：`Projection:ReadModel:*`（绑定到 `ProjectionReadModelRuntimeOptions`）
-- `Projection:ReadModel:Provider`：`InMemory`（默认）/`Elasticsearch`/`Neo4j`
-- `Projection:ReadModel:RelationProvider`：关系 provider；留空时回退到 `Provider`
-- `Projection:ReadModel:FailOnUnsupportedCapabilities`：能力不匹配时是否 fail-fast（默认 `true`）
-- `Projection:ReadModel:Mode`：读模型运行模式（`StateOnly` 会在选择阶段 fail-fast）
-- `Projection:ReadModel:Bindings:*`：ReadModel -> IndexKind 约束（键必须为 `ReadModel` 的 `Type.FullName`，例如 `Aevatar.Workflow.Projection.ReadModels.WorkflowExecutionReport: Document`）
-- `WorkflowExecutionProjection:ValidateReadModelProviderOnStartup`：是否在 Host 启动阶段预校验 Provider 选择与能力（默认 `true`）
-- `WorkflowExecutionProjection:ValidateRelationProviderOnStartup`：是否在 Host 启动阶段预校验 Relation Provider（默认 `true`）
-- `Projection:Policies:DenyInMemoryRelationFactStore`：禁用 InMemory relation 作为事实源（生产建议开启）
-- `Projection:ReadModel:Providers:Elasticsearch:Endpoints`：Elasticsearch endpoint 列表
-- `Projection:ReadModel:Providers:Elasticsearch:IndexPrefix`：索引前缀
-- `Projection:ReadModel:Providers:Elasticsearch:RequestTimeoutMs`：请求超时
-- `Projection:ReadModel:Providers:Elasticsearch:ListTakeMax`：`ListAsync` 上限
-- `Projection:ReadModel:Providers:Elasticsearch:ListSortField`：可选自定义排序字段；为空时默认 `CreatedAt desc -> _id desc`
-- `Projection:ReadModel:Providers:Elasticsearch:AutoCreateIndex`：是否自动建索引
-- `Projection:ReadModel:Providers:Elasticsearch:MissingIndexBehavior`：索引缺失行为（`Throw` / `WarnAndReturnEmpty`，默认 `Throw`）
-- `Projection:ReadModel:Providers:Elasticsearch:MutateMaxRetryCount`：`MutateAsync` OCC 冲突重试次数（默认 `3`）
-- `Projection:ReadModel:Providers:Elasticsearch:Username/Password`：可选基础认证
+- Provider 选择统一配置入口：
+  - `Projection:Document:Provider`：`InMemory`（默认）/`Elasticsearch`/`Neo4j`
+  - `Projection:Graph:Provider`：`InMemory`（默认）/`Neo4j`
+- `Projection:Policies:DenyInMemoryGraphFactStore`：禁用 InMemory graph 作为事实源（生产建议开启）
+- 文档 Provider 配置：
+  - `Projection:Document:Providers:Elasticsearch:*`
+  - `Projection:Document:Providers:Neo4j:*`
+- 图 Provider 配置：
+  - `Projection:Graph:Providers:Neo4j:*`
+- `WorkflowExecutionProjection:ValidateReadModelProviderOnStartup`：启动阶段预校验 document provider（默认 `true`）
+- `WorkflowExecutionProjection:ValidateRelationProviderOnStartup`：启动阶段预校验 graph provider（默认 `true`）
 - 关系查询参数：
   - `/actors/{actorId}/relations` 支持 `direction` 与 `relationTypes`
   - `/actors/{actorId}/relation-subgraph` 支持 `direction` 与 `relationTypes`
+  - `/actors/{actorId}/graph-enriched` 支持 `direction` 与 `relationTypes`
 - 扩展 run 输出协议：
   - 保持 `WorkflowRunEvent` 不变，新增 presentation adapter 进行协议映射
   - 不改 Application 用例编排代码
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
index bd4f21ecc..f2da8ddd3 100644
--- a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
@@ -1,3 +1,5 @@
+using System.Security.Cryptography;
+using System.Text;
 using Aevatar.Foundation.Projection.ReadModels;
 
 namespace Aevatar.Workflow.Projection.ReadModels;
@@ -30,8 +32,20 @@ public enum WorkflowExecutionCompletionStatus
 public sealed class WorkflowExecutionReport
     : AevatarReadModelBase,
       IHasProjectionTimeline,
-      IHasProjectionRoleReplies
+      IHasProjectionRoleReplies,
+      IDocumentReadModel,
+      IGraphReadModel
 {
+    private const string UnknownToken = "unknown";
+
+    public string DocumentScope => "workflow-execution-reports";
+
+    public string GraphScope => WorkflowExecutionRelationConstants.Scope;
+
+    public IReadOnlyList<GraphNodeDescriptor> GraphNodes => BuildGraphNodes();
+
+    public IReadOnlyList<GraphEdgeDescriptor> GraphEdges => BuildGraphEdges();
+
     public string RootActorId { get; set; } = "";
     public string CommandId { get; set; } = "";
     public string ReportVersion { get; set; } = "1.0";
@@ -82,6 +96,183 @@ public void AddRoleReply(ProjectionRoleReply roleReply)
             ContentLength = roleReply.ContentLength,
         });
     }
+
+    private IReadOnlyList<GraphNodeDescriptor> BuildGraphNodes()
+    {
+        var updatedAt = UpdatedAt == default ? DateTimeOffset.UtcNow : UpdatedAt;
+        var rootActorId = NormalizeToken(RootActorId);
+        var runNodeId = BuildRunNodeId(rootActorId, CommandId);
+        var nodes = new Dictionary<string, GraphNodeDescriptor>(StringComparer.Ordinal);
+
+        nodes[rootActorId] = new GraphNodeDescriptor(
+            rootActorId,
+            WorkflowExecutionRelationConstants.ActorNodeType,
+            new Dictionary<string, string>(StringComparer.Ordinal)
+            {
+                ["workflowName"] = WorkflowName ?? "",
+            },
+            updatedAt);
+
+        nodes[runNodeId] = new GraphNodeDescriptor(
+            runNodeId,
+            WorkflowExecutionRelationConstants.RunNodeType,
+            new Dictionary<string, string>(StringComparer.Ordinal)
+            {
+                ["rootActorId"] = rootActorId,
+                ["workflowName"] = WorkflowName ?? "",
+                ["commandId"] = NormalizeToken(CommandId),
+                ["input"] = Input ?? "",
+            },
+            updatedAt);
+
+        foreach (var step in Steps)
+        {
+            var stepNodeId = BuildStepNodeId(rootActorId, CommandId, step.StepId);
+            nodes[stepNodeId] = new GraphNodeDescriptor(
+                stepNodeId,
+                WorkflowExecutionRelationConstants.StepNodeType,
+                new Dictionary<string, string>(StringComparer.Ordinal)
+                {
+                    ["rootActorId"] = rootActorId,
+                    ["commandId"] = NormalizeToken(CommandId),
+                    ["stepId"] = NormalizeToken(step.StepId),
+                    ["stepType"] = step.StepType ?? "",
+                    ["targetRole"] = step.TargetRole ?? "",
+                    ["workerId"] = step.WorkerId ?? "",
+                    ["success"] = step.Success?.ToString() ?? "",
+                },
+                updatedAt);
+        }
+
+        foreach (var topologyEdge in Topology)
+        {
+            var parentId = NormalizeToken(topologyEdge.Parent);
+            var childId = NormalizeToken(topologyEdge.Child);
+            if (parentId.Length > 0 && !nodes.ContainsKey(parentId))
+            {
+                nodes[parentId] = new GraphNodeDescriptor(
+                    parentId,
+                    WorkflowExecutionRelationConstants.ActorNodeType,
+                    new Dictionary<string, string>(StringComparer.Ordinal)
+                    {
+                        ["workflowName"] = WorkflowName ?? "",
+                    },
+                    updatedAt);
+            }
+
+            if (childId.Length > 0 && !nodes.ContainsKey(childId))
+            {
+                nodes[childId] = new GraphNodeDescriptor(
+                    childId,
+                    WorkflowExecutionRelationConstants.ActorNodeType,
+                    new Dictionary<string, string>(StringComparer.Ordinal)
+                    {
+                        ["workflowName"] = WorkflowName ?? "",
+                    },
+                    updatedAt);
+            }
+        }
+
+        return nodes.Values.ToList();
+    }
+
+    private IReadOnlyList<GraphEdgeDescriptor> BuildGraphEdges()
+    {
+        var updatedAt = UpdatedAt == default ? DateTimeOffset.UtcNow : UpdatedAt;
+        var rootActorId = NormalizeToken(RootActorId);
+        var runNodeId = BuildRunNodeId(rootActorId, CommandId);
+        var edges = new Dictionary<string, GraphEdgeDescriptor>(StringComparer.Ordinal);
+
+        var ownsEdge = CreateEdge(
+            WorkflowExecutionRelationConstants.RelationOwns,
+            rootActorId,
+            runNodeId,
+            new Dictionary<string, string>(StringComparer.Ordinal),
+            updatedAt);
+        edges[ownsEdge.EdgeId] = ownsEdge;
+
+        foreach (var step in Steps)
+        {
+            var stepNodeId = BuildStepNodeId(rootActorId, CommandId, step.StepId);
+            var containsEdge = CreateEdge(
+                WorkflowExecutionRelationConstants.RelationContainsStep,
+                runNodeId,
+                stepNodeId,
+                new Dictionary<string, string>(StringComparer.Ordinal)
+                {
+                    ["stepId"] = NormalizeToken(step.StepId),
+                    ["stepType"] = step.StepType ?? "",
+                },
+                updatedAt);
+            edges[containsEdge.EdgeId] = containsEdge;
+        }
+
+        foreach (var topologyEdge in Topology)
+        {
+            var parentId = NormalizeToken(topologyEdge.Parent);
+            var childId = NormalizeToken(topologyEdge.Child);
+            if (parentId.Length == 0 || childId.Length == 0)
+                continue;
+
+            var childOfEdge = CreateEdge(
+                WorkflowExecutionRelationConstants.RelationChildOf,
+                parentId,
+                childId,
+                new Dictionary<string, string>(StringComparer.Ordinal),
+                updatedAt);
+            edges[childOfEdge.EdgeId] = childOfEdge;
+        }
+
+        return edges.Values.ToList();
+    }
+
+    private static GraphEdgeDescriptor CreateEdge(
+        string relationType,
+        string fromNodeId,
+        string toNodeId,
+        IReadOnlyDictionary<string, string> properties,
+        DateTimeOffset updatedAt)
+    {
+        var normalizedFromNodeId = NormalizeToken(fromNodeId);
+        var normalizedToNodeId = NormalizeToken(toNodeId);
+        var normalizedRelationType = NormalizeToken(relationType);
+        var edgeId = BuildEdgeId(normalizedRelationType, normalizedFromNodeId, normalizedToNodeId);
+        return new GraphEdgeDescriptor(
+            edgeId,
+            normalizedRelationType,
+            normalizedFromNodeId,
+            normalizedToNodeId,
+            new Dictionary<string, string>(properties, StringComparer.Ordinal),
+            updatedAt);
+    }
+
+    private static string BuildRunNodeId(string rootActorId, string commandId)
+    {
+        var normalizedRootActorId = NormalizeToken(rootActorId);
+        var normalizedCommandId = NormalizeToken(commandId);
+        return $"run:{normalizedRootActorId}:{normalizedCommandId}";
+    }
+
+    private static string BuildStepNodeId(string rootActorId, string commandId, string stepId)
+    {
+        var normalizedRootActorId = NormalizeToken(rootActorId);
+        var normalizedCommandId = NormalizeToken(commandId);
+        var normalizedStepId = NormalizeToken(stepId);
+        return $"step:{normalizedRootActorId}:{normalizedCommandId}:{normalizedStepId}";
+    }
+
+    private static string BuildEdgeId(string relationType, string fromNodeId, string toNodeId)
+    {
+        var payload = $"{relationType}|{fromNodeId}|{toNodeId}";
+        var hash = SHA256.HashData(Encoding.UTF8.GetBytes(payload));
+        return $"{relationType}:{Convert.ToHexString(hash.AsSpan(0, 8))}";
+    }
+
+    private static string NormalizeToken(string? token)
+    {
+        var normalized = token?.Trim() ?? "";
+        return normalized.Length == 0 ? UnknownToken : normalized;
+    }
 }
 
 public sealed class WorkflowExecutionSummary
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index 8c35b0680..3449198fc 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -3,7 +3,6 @@
 using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
 using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
-using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.CQRS.Projection.Stores.Abstractions;
 using Aevatar.Workflow.Projection.ReadModels;
 using Microsoft.Extensions.Configuration;
@@ -26,60 +25,59 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
 
         services.AddSingleton<WorkflowProjectionProviderRegistrationsMarker>();
 
-        var runtimeOptions = ResolveRuntimeOptions(configuration);
-        var providerSelection = ResolveProviderSelection(runtimeOptions);
-        EnforceRelationProviderPolicy(configuration, providerSelection.RelationProvider);
+        var providerSelection = ResolveProviderSelection(configuration);
+        EnforceGraphProviderPolicy(configuration, providerSelection.GraphProvider);
+        var runtimeOptions = new ProjectionReadModelRuntimeOptions
+        {
+            DocumentProvider = providerSelection.DocumentProvider,
+            GraphProvider = providerSelection.GraphProvider,
+            FailOnUnsupportedCapabilities = true,
+            Mode = ProjectionReadModelMode.CustomReadModel,
+        };
 
         services.Replace(ServiceDescriptor.Singleton(runtimeOptions));
         services.Replace(ServiceDescriptor.Singleton<IProjectionStoreSelectionRuntimeOptions>(sp =>
             sp.GetRequiredService<ProjectionReadModelRuntimeOptions>()));
 
-        RegisterReadModelProvider(services, configuration, providerSelection.ReadModelProvider);
-        RegisterRelationProvider(services, configuration, providerSelection.RelationProvider);
+        RegisterDocumentProvider(services, configuration, providerSelection.DocumentProvider);
+        RegisterGraphProvider(services, configuration, providerSelection.GraphProvider);
 
         return services;
     }
 
-    private static ProjectionReadModelRuntimeOptions ResolveRuntimeOptions(IConfiguration configuration)
+    private static ProviderSelection ResolveProviderSelection(IConfiguration configuration)
     {
-        var options = new ProjectionReadModelRuntimeOptions();
-        configuration.GetSection("Projection:ReadModel").Bind(options);
-        return options;
-    }
-
-    private static ProviderSelection ResolveProviderSelection(ProjectionReadModelRuntimeOptions runtimeOptions)
-    {
-        var readModelProvider = NormalizeOrDefaultProvider(
-            runtimeOptions.Provider,
+        var documentProvider = NormalizeOrDefaultProvider(
+            configuration["Projection:Document:Provider"],
             ProjectionReadModelProviderNames.InMemory,
-            "Projection:ReadModel:Provider");
+            "Projection:Document:Provider");
 
-        var relationProvider = NormalizeOrDefaultProvider(
-            runtimeOptions.RelationProvider,
-            readModelProvider,
-            "Projection:ReadModel:RelationProvider");
+        var graphProvider = NormalizeOrDefaultProvider(
+            configuration["Projection:Graph:Provider"],
+            documentProvider,
+            "Projection:Graph:Provider");
 
-        return new ProviderSelection(readModelProvider, relationProvider);
+        return new ProviderSelection(documentProvider, graphProvider);
     }
 
-    private static void EnforceRelationProviderPolicy(
+    private static void EnforceGraphProviderPolicy(
         IConfiguration configuration,
-        string relationProviderName)
+        string graphProviderName)
     {
-        var denyInMemoryRelationProvider = ParseBool(
-            configuration["Projection:Policies:DenyInMemoryRelationFactStore"]);
+        var denyInMemoryGraphProvider = ParseBool(
+            configuration["Projection:Policies:DenyInMemoryGraphFactStore"]);
         var environment = ResolveRuntimeEnvironment(configuration["Projection:Policies:Environment"]);
         var production = IsProductionEnvironment(environment);
 
-        if ((denyInMemoryRelationProvider || production) &&
+        if ((denyInMemoryGraphProvider || production) &&
             string.Equals(
-                relationProviderName,
+                graphProviderName,
                 ProjectionReadModelProviderNames.InMemory,
                 StringComparison.OrdinalIgnoreCase))
         {
             throw new InvalidOperationException(
-                "InMemory relation provider is not allowed by projection policy. " +
-                "Use a durable relation provider (for example Neo4j) for production/distributed deployments.");
+                "InMemory graph provider is not allowed by projection policy. " +
+                "Use a durable graph provider (for example Neo4j) for production/distributed deployments.");
         }
     }
 
@@ -127,7 +125,7 @@ private static string NormalizeOrDefaultProvider(
             $"Allowed values: {ProjectionReadModelProviderNames.InMemory}, {ProjectionReadModelProviderNames.Elasticsearch}, {ProjectionReadModelProviderNames.Neo4j}.");
     }
 
-    private static void RegisterReadModelProvider(
+    private static void RegisterDocumentProvider(
         IServiceCollection services,
         IConfiguration configuration,
         string providerName)
@@ -135,42 +133,50 @@ private static void RegisterReadModelProvider(
         switch (providerName)
         {
             case ProjectionReadModelProviderNames.InMemory:
-                services.AddInMemoryReadModelStoreRegistration<WorkflowExecutionReport, string>(
+                services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
                     keySelector: report => report.RootActorId,
                     keyFormatter: key => key,
                     listSortSelector: report => report.CreatedAt,
                     listTakeMax: 200);
                 break;
             case ProjectionReadModelProviderNames.Elasticsearch:
-                services.AddElasticsearchReadModelStoreRegistration<WorkflowExecutionReport, string>(
+                services.AddElasticsearchDocumentStoreRegistration<WorkflowExecutionReport, string>(
                     optionsFactory: _ =>
                     {
                         var providerOptions = new ElasticsearchProjectionReadModelStoreOptions();
-                        configuration.GetSection("Projection:ReadModel:Providers:Elasticsearch").Bind(providerOptions);
+                        configuration.GetSection("Projection:Document:Providers:Elasticsearch").Bind(providerOptions);
                         return providerOptions;
                     },
-                    indexScope: "workflow-execution-reports",
+                    indexScopeFactory: sp =>
+                    {
+                        var metadataResolver = sp.GetRequiredService<IProjectionDocumentMetadataResolver>();
+                        return metadataResolver.Resolve<WorkflowExecutionReport>().IndexName;
+                    },
                     keySelector: report => report.RootActorId,
                     keyFormatter: key => key);
                 break;
             case ProjectionReadModelProviderNames.Neo4j:
-                services.AddNeo4jReadModelStoreRegistration<WorkflowExecutionReport, string>(
+                services.AddNeo4jDocumentStoreRegistration<WorkflowExecutionReport, string>(
                     optionsFactory: _ =>
                     {
                         var providerOptions = new Neo4jProjectionReadModelStoreOptions();
-                        configuration.GetSection("Projection:ReadModel:Providers:Neo4j").Bind(providerOptions);
+                        configuration.GetSection("Projection:Document:Providers:Neo4j").Bind(providerOptions);
                         return providerOptions;
                     },
-                    scope: "workflow-execution-reports",
+                    scopeFactory: sp =>
+                    {
+                        var metadataResolver = sp.GetRequiredService<IProjectionDocumentMetadataResolver>();
+                        return metadataResolver.Resolve<WorkflowExecutionReport>().IndexName;
+                    },
                     keySelector: report => report.RootActorId,
                     keyFormatter: key => key);
                 break;
             default:
-                throw new InvalidOperationException($"Unsupported read-model provider '{providerName}'.");
+                throw new InvalidOperationException($"Unsupported document provider '{providerName}'.");
         }
     }
 
-    private static void RegisterRelationProvider(
+    private static void RegisterGraphProvider(
         IServiceCollection services,
         IConfiguration configuration,
         string providerName)
@@ -178,27 +184,27 @@ private static void RegisterRelationProvider(
         switch (providerName)
         {
             case ProjectionReadModelProviderNames.InMemory:
-                services.AddInMemoryRelationStoreRegistration();
+                services.AddInMemoryGraphStoreRegistration();
                 break;
             case ProjectionReadModelProviderNames.Elasticsearch:
-                services.AddElasticsearchRelationStoreRegistration();
-                break;
+                throw new InvalidOperationException(
+                    "Elasticsearch cannot be used as graph provider. Use InMemory (dev/test) or Neo4j.");
             case ProjectionReadModelProviderNames.Neo4j:
-                services.AddNeo4jRelationStoreRegistration(
+                services.AddNeo4jGraphStoreRegistration(
                     optionsFactory: _ =>
                     {
                         var providerOptions = new Neo4jProjectionRelationStoreOptions();
-                        configuration.GetSection("Projection:ReadModel:Providers:Neo4j").Bind(providerOptions);
+                        configuration.GetSection("Projection:Graph:Providers:Neo4j").Bind(providerOptions);
                         return providerOptions;
                     },
-                    scope: WorkflowExecutionRelationConstants.Scope);
+                    scopeFactory: _ => WorkflowExecutionRelationConstants.Scope);
                 break;
             default:
-                throw new InvalidOperationException($"Unsupported relation provider '{providerName}'.");
+                throw new InvalidOperationException($"Unsupported graph provider '{providerName}'.");
         }
     }
 
     private sealed class WorkflowProjectionProviderRegistrationsMarker;
 
-    private sealed record ProviderSelection(string ReadModelProvider, string RelationProvider);
+    private sealed record ProviderSelection(string DocumentProvider, string GraphProvider);
 }
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs
index ad5da3f5a..032ae3ec2 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs
@@ -6,14 +6,14 @@ namespace Aevatar.CQRS.Projection.Core.Tests;
 public sealed class ProjectionStoreSelectionPlannerTests
 {
     private readonly ProjectionStoreSelectionPlanner _planner =
-        new(new ProjectionReadModelBindingResolver());
+        new();
 
     [Fact]
     public void Build_WhenReadModelProviderIsEmpty_ShouldThrow()
     {
         var options = new FakeOptions
         {
-            ReadModelProvider = " ",
+            DocumentProvider = " ",
         };
 
         Action act = () => _planner.Build(options, typeof(TestReadModel), new ProjectionReadModelRequirements());
@@ -27,8 +27,8 @@ public void Build_WhenRelationProviderMissing_ShouldFallbackToReadModelProvider(
     {
         var options = new FakeOptions
         {
-            ReadModelProvider = ProjectionReadModelProviderNames.Neo4j,
-            RelationProvider = " ",
+            DocumentProvider = ProjectionReadModelProviderNames.Neo4j,
+            GraphProvider = " ",
         };
 
         var plan = _planner.Build(options, typeof(TestReadModel), new ProjectionReadModelRequirements(
@@ -44,16 +44,15 @@ public void Build_ShouldMergeRelationRequirementsWithReadModelAliasAndSchemaRequ
     {
         var options = new FakeOptions
         {
-            ReadModelProvider = ProjectionReadModelProviderNames.Neo4j,
+            DocumentProvider = ProjectionReadModelProviderNames.Neo4j,
         };
-        options.ReadModelBindings[typeof(TestReadModel).FullName!] = ProjectionReadModelIndexKind.Graph.ToString();
         var relationRequirements = new ProjectionReadModelRequirements(
             requiresRelations: true,
             requiresRelationTraversal: true,
             requiresAliases: false,
             requiresSchemaValidation: false);
 
-        var plan = _planner.Build(options, typeof(TestReadModel), relationRequirements);
+        var plan = _planner.Build(options, typeof(TestGraphReadModel), relationRequirements);
 
         plan.RelationRequirements.RequiresRelations.Should().BeTrue();
         plan.RelationRequirements.RequiresRelationTraversal.Should().BeTrue();
@@ -66,7 +65,7 @@ public void Build_WhenStateOnlyModeConfigured_ShouldThrow()
     {
         var options = new FakeOptions
         {
-            ReadModelProvider = ProjectionReadModelProviderNames.InMemory,
+            DocumentProvider = ProjectionReadModelProviderNames.InMemory,
             ReadModelMode = ProjectionReadModelMode.StateOnly,
         };
 
@@ -78,20 +77,25 @@ public void Build_WhenStateOnlyModeConfigured_ShouldThrow()
 
     private sealed class FakeOptions : IProjectionStoreSelectionRuntimeOptions
     {
-        private readonly Dictionary<string, string> _bindings = new(StringComparer.OrdinalIgnoreCase);
+        public string DocumentProvider { get; set; } = ProjectionReadModelProviderNames.InMemory;
 
-        public string ReadModelProvider { get; set; } = ProjectionReadModelProviderNames.InMemory;
-
-        public string RelationProvider { get; set; } = "";
+        public string GraphProvider { get; set; } = "";
 
         public bool FailOnUnsupportedCapabilities { get; set; } = true;
 
         public ProjectionReadModelMode ReadModelMode { get; set; } = ProjectionReadModelMode.CustomReadModel;
-
-        public Dictionary<string, string> ReadModelBindings => _bindings;
-
-        IReadOnlyDictionary<string, string> IProjectionStoreSelectionRuntimeOptions.ReadModelBindings => _bindings;
     }
 
     private sealed class TestReadModel;
+
+    private sealed class TestGraphReadModel : IGraphReadModel
+    {
+        public string Id => "test";
+
+        public string GraphScope => "test";
+
+        public IReadOnlyList<GraphNodeDescriptor> GraphNodes => [];
+
+        public IReadOnlyList<GraphEdgeDescriptor> GraphEdges => [];
+    }
 }
diff --git a/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs b/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
index f410cb85e..ab439a4c7 100644
--- a/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
+++ b/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
@@ -508,6 +508,25 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         return Task.FromResult(subgraph);
     }
 
+    public async Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
+        string actorId,
+        int depth = 2,
+        int take = 200,
+        WorkflowActorRelationQueryOptions? options = null,
+        CancellationToken ct = default)
+    {
+        var snapshot = await GetActorSnapshotAsync(actorId, ct);
+        if (snapshot == null)
+            return null;
+
+        var subgraph = await GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
+        return new WorkflowActorGraphEnrichedSnapshot
+        {
+            Snapshot = snapshot,
+            Subgraph = subgraph,
+        };
+    }
+
     private sealed record FakeProjectionLease(string ActorId, string CommandId) : IWorkflowExecutionProjectionLease;
 }
 
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
index 6866aff5d..9f00d65d6 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
@@ -495,6 +495,25 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
 
             return Task.FromResult(item);
         }
+
+        public async Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
+            string actorId,
+            int depth = 2,
+            int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
+            CancellationToken ct = default)
+        {
+            var snapshot = await GetActorSnapshotAsync(actorId, ct);
+            if (snapshot == null)
+                return null;
+
+            var subgraph = await GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
+            return new WorkflowActorGraphEnrichedSnapshot
+            {
+                Snapshot = snapshot,
+                Subgraph = subgraph,
+            };
+        }
     }
 
     private static CommandExecutionResult<WorkflowChatRunStarted, WorkflowChatRunFinalizeResult, WorkflowChatRunStartError> ToCoreResult(
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
index df65fb628..5de50f0ea 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
@@ -204,6 +204,26 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             {
                 RootNodeId = actorId,
             });
+
+        public Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
+            string actorId,
+            int depth = 2,
+            int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
+            CancellationToken ct = default)
+        {
+            if (Snapshot == null)
+                return Task.FromResult<WorkflowActorGraphEnrichedSnapshot?>(null);
+
+            return Task.FromResult<WorkflowActorGraphEnrichedSnapshot?>(new WorkflowActorGraphEnrichedSnapshot
+            {
+                Snapshot = Snapshot,
+                Subgraph = new WorkflowActorRelationSubgraph
+                {
+                    RootNodeId = actorId,
+                },
+            });
+        }
     }
 
     private sealed class FakeWebSocket : WebSocket
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
index 1941f161a..b6695c22a 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
@@ -262,6 +262,14 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             {
                 RootNodeId = actorId,
             });
+
+        public Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
+            string actorId,
+            int depth = 2,
+            int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
+            CancellationToken ct = default) =>
+            Task.FromResult<WorkflowActorGraphEnrichedSnapshot?>(null);
     }
 
     private sealed class FakeWebSocketFeature : IHttpWebSocketFeature
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 493d39780..8dcf7d9c0 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -4,19 +4,11 @@
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
 using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
-using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
-using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
-using Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
-using Aevatar.AI.Projection.Reducers;
-using Aevatar.Workflow.Extensions.AIProjection;
-using Aevatar.Workflow.Projection;
-using Aevatar.Workflow.Projection.ReadModels;
-using Aevatar.Workflow.Projection.Configuration;
+using Aevatar.CQRS.Projection.Runtime.Runtime;
+using Aevatar.CQRS.Projection.Stores.Abstractions;
 using Aevatar.Workflow.Projection.DependencyInjection;
-using Aevatar.Workflow.Projection.Reducers;
+using Aevatar.Workflow.Projection.ReadModels;
 using FluentAssertions;
-using Google.Protobuf;
-using Google.Protobuf.WellKnownTypes;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.Extensions.Hosting;
@@ -26,7 +18,7 @@ namespace Aevatar.Workflow.Host.Api.Tests;
 public class WorkflowExecutionProjectionRegistrationTests
 {
     [Fact]
-    public async Task AddWorkflowExecutionProjectionCQRS_WhenStartupValidationEnabledAndProviderMissing_ShouldFailFast()
+    public async Task AddWorkflowExecutionProjectionCQRS_WhenNoProvidersRegistered_ShouldFailFast()
     {
         var services = new ServiceCollection();
         services.AddWorkflowExecutionProjectionCQRS();
@@ -39,437 +31,93 @@ await act.Should().ThrowAsync<ProjectionProviderSelectionException>()
     }
 
     [Fact]
-    public async Task AddWorkflowExecutionProjectionCQRS_WhenStartupValidationFindsUnsupportedCapabilities_ShouldFailFast()
+    public async Task AddWorkflowExecutionProjectionCQRS_ShouldResolveInMemoryDocumentAndGraphStores()
     {
         var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        ConfigureStoreSelectionOptions(services, options =>
-        {
-            options.Provider = ProjectionReadModelProviderNames.InMemory;
-            options.Bindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
-            options.FailOnUnsupportedCapabilities = true;
-        });
+        RegisterInMemoryProviders(services);
         services.AddWorkflowExecutionProjectionCQRS();
 
         await using var provider = services.BuildServiceProvider();
-        Func<Task> act = () => StartHostedServicesAsync(provider);
-
-        await act.Should().ThrowAsync<ProjectionReadModelCapabilityValidationException>()
-            .Where(ex => ex.ReadModelType == typeof(WorkflowExecutionReport));
-    }
-
-    [Fact]
-    public async Task AddWorkflowExecutionProjectionCQRS_WhenStartupValidationConfiguredCorrectly_ShouldPass()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS();
-
-        await using var provider = services.BuildServiceProvider();
-        Func<Task> act = () => StartHostedServicesAsync(provider);
-
-        await act.Should().NotThrowAsync();
-    }
-
-    [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_ShouldUseInMemoryProviderByDefault()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS();
-
-        using var provider = services.BuildServiceProvider();
-        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        var documentStore = provider.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>();
+        var readModelStore = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
         var relationStore = provider.GetRequiredService<IProjectionRelationStore>();
+        var graphStore = provider.GetRequiredService<IGraphProjectionStore<WorkflowExecutionReport>>();
+        var router = provider.GetRequiredService<IProjectionMaterializationRouter<WorkflowExecutionReport, string>>();
 
-        store.Should().BeOfType<InMemoryProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        documentStore.Should().BeOfType<InMemoryProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        readModelStore.Should().BeOfType<InMemoryProjectionReadModelStore<WorkflowExecutionReport, string>>();
         relationStore.Should().BeOfType<InMemoryProjectionRelationStore>();
-        var metadata = store.Should().BeAssignableTo<IProjectionStoreProviderMetadata>().Subject;
-        metadata.ProviderCapabilities.ProviderName.Should().Be(ProjectionReadModelProviderNames.InMemory);
-    }
-
-    [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchConfiguredWithoutRelationProvider_ShouldFailFastOnRelationStore()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        RegisterElasticsearchProvider(services);
-        ConfigureStoreSelectionOptions(services, options =>
-            options.Provider = ProjectionReadModelProviderNames.Elasticsearch);
-        services.AddWorkflowExecutionProjectionCQRS();
-
-        using var provider = services.BuildServiceProvider();
-        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        store.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        var metadata = store.Should().BeAssignableTo<IProjectionStoreProviderMetadata>().Subject;
-        metadata.ProviderCapabilities.SupportsIndexing.Should().BeTrue();
-        metadata.ProviderCapabilities.IndexKinds.Should().Contain(ProjectionReadModelIndexKind.Document);
+        graphStore.Should().BeOfType<ProjectionGraphStoreAdapter<WorkflowExecutionReport>>();
+        router.Should().NotBeNull();
 
-        Action act = () => provider.GetRequiredService<IProjectionRelationStore>();
-        act.Should().Throw<ProjectionReadModelCapabilityValidationException>()
-            .Where(ex => ex.ReadModelType == typeof(ProjectionRelationNode));
+        Func<Task> act = () => StartHostedServicesAsync(provider);
+        await act.Should().NotThrowAsync();
     }
 
     [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_WhenElasticsearchReadModelWithInMemoryRelationConfigured_ShouldResolveSplitProviders()
+    public void AddWorkflowExecutionProjectionCQRS_WhenDocumentElasticsearchAndGraphInMemoryConfigured_ShouldResolveSplitProviders()
     {
         var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        RegisterElasticsearchProvider(services);
+        RegisterInMemoryProviders(services);
+        RegisterElasticsearchDocumentProvider(services);
         ConfigureStoreSelectionOptions(services, options =>
         {
-            options.Provider = ProjectionReadModelProviderNames.Elasticsearch;
-            options.RelationProvider = ProjectionReadModelProviderNames.InMemory;
+            options.DocumentProvider = ProjectionReadModelProviderNames.Elasticsearch;
+            options.GraphProvider = ProjectionReadModelProviderNames.InMemory;
         });
         services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
-        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        var readModelStore = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
         var relationStore = provider.GetRequiredService<IProjectionRelationStore>();
 
-        store.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
+        readModelStore.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
         relationStore.Should().BeOfType<InMemoryProjectionRelationStore>();
     }
 
     [Fact]
-    public async Task AddWorkflowExecutionProjectionCQRS_WhenNeo4jConfigured_ShouldResolveNeo4jStore()
+    public void AddWorkflowExecutionProjectionCQRS_WhenGraphProviderMissing_ShouldThrowOnGraphStoreResolution()
     {
         var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        RegisterNeo4jProvider(services);
-        ConfigureStoreSelectionOptions(services, options =>
-            options.Provider = ProjectionReadModelProviderNames.Neo4j);
-        services.AddWorkflowExecutionProjectionCQRS();
-
-        await using var provider = services.BuildServiceProvider();
-        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        var relationStore = provider.GetRequiredService<IProjectionRelationStore>();
-
-        store.Should().BeOfType<Neo4jProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        relationStore.Should().BeOfType<Neo4jProjectionRelationStore>();
-        var metadata = store.Should().BeAssignableTo<IProjectionStoreProviderMetadata>().Subject;
-        metadata.ProviderCapabilities.SupportsIndexing.Should().BeTrue();
-        metadata.ProviderCapabilities.IndexKinds.Should().Contain(ProjectionReadModelIndexKind.Graph);
-    }
-
-    [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_WhenProviderUnsupported_ShouldThrow()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        ConfigureStoreSelectionOptions(services, options =>
-            options.Provider = "UnknownProvider");
-        services.AddWorkflowExecutionProjectionCQRS();
-        using var provider = services.BuildServiceProvider();
-
-        Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*Requested provider*is not registered*");
-    }
-
-    [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_WhenBindingRequiresUnsupportedCapabilities_ShouldFailFast()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        ConfigureStoreSelectionOptions(services, options =>
-        {
-            options.Provider = ProjectionReadModelProviderNames.InMemory;
-            options.Bindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
-            options.FailOnUnsupportedCapabilities = true;
-        });
-        services.AddWorkflowExecutionProjectionCQRS();
-        using var provider = services.BuildServiceProvider();
-
-        Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-
-        act.Should().Throw<ProjectionReadModelCapabilityValidationException>()
-            .Where(ex => ex.ReadModelType == typeof(WorkflowExecutionReport));
-    }
-
-    [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_WhenFailFastDisabled_ShouldAllowUnsupportedCapabilities()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        ConfigureStoreSelectionOptions(services, options =>
-        {
-            options.Provider = ProjectionReadModelProviderNames.InMemory;
-            options.Bindings[typeof(WorkflowExecutionReport).FullName!] = ProjectionReadModelIndexKind.Document.ToString();
-            options.FailOnUnsupportedCapabilities = false;
-        });
-        services.AddWorkflowExecutionProjectionCQRS();
-        using var provider = services.BuildServiceProvider();
-
-        Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-
-        act.Should().NotThrow();
-    }
-
-    [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_WhenStateOnlyModeConfigured_ShouldThrow()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
+        RegisterElasticsearchDocumentProvider(services);
         ConfigureStoreSelectionOptions(services, options =>
         {
-            options.Mode = ProjectionReadModelMode.StateOnly;
-            options.Provider = ProjectionReadModelProviderNames.InMemory;
+            options.DocumentProvider = ProjectionReadModelProviderNames.Elasticsearch;
+            options.GraphProvider = ProjectionReadModelProviderNames.Elasticsearch;
         });
         services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
-        Action act = () => provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*does not support*StateOnly*");
-    }
-
-    [Fact]
-    public async Task AddWorkflowExecutionProjectionReducer_ShouldSupportExternalReducer()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS();
-        services.AddWorkflowExecutionProjectionReducer<CustomChatRequestReducer>();
-
-        await using var provider = services.BuildServiceProvider();
-        var coordinator = provider.GetRequiredService<IProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>>();
-        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-
-        var context = new WorkflowExecutionProjectionContext
-        {
-            ProjectionId = "ext-1",
-            CommandId = "cmd-ext-1",
-            RootActorId = "root",
-            WorkflowName = "direct",
-            StartedAt = DateTimeOffset.UtcNow,
-            Input = "hello",
-        };
-
-        await coordinator.InitializeAsync(context);
-        await coordinator.ProjectAsync(context, Wrap(new ChatRequestEvent { Prompt = "hello" }));
-        await coordinator.CompleteAsync(context, []);
-
-        var report = await store.GetAsync(context.RootActorId);
-        report.Should().NotBeNull();
-        report!.Timeline.Should().ContainSingle(x => x.Stage == "custom.chat.request");
-    }
-
-    [Fact]
-    public async Task AddWorkflowExecutionProjectionExtensionsFromAssembly_ShouldAutoRegisterReducer()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS();
-        services.AddWorkflowExecutionProjectionExtensionsFromAssembly(typeof(CustomChatRequestReducer).Assembly);
-
-        await using var provider = services.BuildServiceProvider();
-        var coordinator = provider.GetRequiredService<IProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>>();
-        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-
-        var context = new WorkflowExecutionProjectionContext
-        {
-            ProjectionId = "ext-2",
-            CommandId = "cmd-ext-2",
-            RootActorId = "root",
-            WorkflowName = "direct",
-            StartedAt = DateTimeOffset.UtcNow,
-            Input = "hello",
-        };
-
-        await coordinator.InitializeAsync(context);
-        await coordinator.ProjectAsync(context, Wrap(new ChatRequestEvent { Prompt = "hello" }));
-        await coordinator.CompleteAsync(context, []);
-
-        var report = await store.GetAsync(context.RootActorId);
-        report.Should().NotBeNull();
-        report!.Timeline.Should().ContainSingle(x => x.Stage == "custom.chat.request");
-    }
-
-    [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_MultipleCalls_ShouldUseLastOptions()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS(options => options.Enabled = true);
-        services.AddWorkflowExecutionProjectionCQRS(options => options.Enabled = false);
-
-        using var provider = services.BuildServiceProvider();
-        var options = provider.GetRequiredService<WorkflowExecutionProjectionOptions>();
-        var coordinator = provider.GetRequiredService<IProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>>();
-        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-
-        options.Enabled.Should().BeFalse();
-        coordinator.Should().NotBeNull();
-        store.Should().NotBeNull();
-    }
-
-    [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_MultipleCalls_ShouldUseLastProvider()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        RegisterElasticsearchProvider(services);
-        ConfigureStoreSelectionOptions(services, options =>
-            options.Provider = ProjectionReadModelProviderNames.InMemory);
-        services.AddWorkflowExecutionProjectionCQRS();
-        ConfigureStoreSelectionOptions(services, options =>
-            options.Provider = ProjectionReadModelProviderNames.Elasticsearch);
-        services.AddWorkflowExecutionProjectionCQRS();
-
-        using var provider = services.BuildServiceProvider();
-        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-
-        store.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
-    }
-
-    [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_ShouldExposeGenericProjectionAbstractions()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS();
-
-        using var provider = services.BuildServiceProvider();
-        var coordinator = provider.GetRequiredService<IProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>>();
-        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        var reducers = provider.GetServices<IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>>();
-        var projectors = provider.GetServices<IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>>();
-
-        coordinator.Should().NotBeNull();
-        store.Should().NotBeNull();
-        reducers.Should().NotBeEmpty();
-        projectors.Should().NotBeEmpty();
-    }
-
-    [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_WithAIExtensions_ShouldRegisterDefaultAIReducers()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS();
-        services.AddWorkflowAIProjectionExtensions();
-
-        using var provider = services.BuildServiceProvider();
-        var reducerTypes = provider
-            .GetServices<IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>>()
-            .Select(x => x.GetType())
-            .ToList();
+        Action act = () => provider.GetRequiredService<IProjectionRelationStore>();
 
-        reducerTypes.Should().Contain(x =>
-            x.IsGenericType &&
-            x.GetGenericTypeDefinition() == typeof(TextMessageEndProjectionReducer<,>));
-        reducerTypes.Should().Contain(x =>
-            x.IsGenericType &&
-            x.GetGenericTypeDefinition() == typeof(TextMessageStartProjectionReducer<,>));
-        reducerTypes.Should().Contain(x =>
-            x.IsGenericType &&
-            x.GetGenericTypeDefinition() == typeof(TextMessageContentProjectionReducer<,>));
-        reducerTypes.Should().Contain(x =>
-            x.IsGenericType &&
-            x.GetGenericTypeDefinition() == typeof(ToolCallProjectionReducer<,>));
-        reducerTypes.Should().Contain(x =>
-            x.IsGenericType &&
-            x.GetGenericTypeDefinition() == typeof(ToolResultProjectionReducer<,>));
+        act.Should().Throw<ProjectionProviderSelectionException>()
+            .WithMessage("*No relation store provider registrations were found*");
     }
 
-    [Fact]
-    public async Task AddWorkflowExecutionProjectionCQRS_WithAIExtensions_ShouldProjectAIEventsWithoutWorkflowApplier()
+    private static void RegisterInMemoryProviders(IServiceCollection services)
     {
-        var services = new ServiceCollection();
-        RegisterInMemoryProvider(services);
-        services.AddWorkflowExecutionProjectionCQRS();
-        services.AddWorkflowAIProjectionExtensions();
-
-        await using var provider = services.BuildServiceProvider();
-        var coordinator = provider.GetRequiredService<IProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>>();
-        var store = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-
-        var context = new WorkflowExecutionProjectionContext
-        {
-            ProjectionId = "ai-layer-1",
-            CommandId = "cmd-ai-layer-1",
-            RootActorId = "root",
-            WorkflowName = "wf",
-            StartedAt = DateTimeOffset.UtcNow,
-            Input = "hello",
-        };
-
-        await coordinator.InitializeAsync(context);
-        await coordinator.ProjectAsync(context, Wrap(new TextMessageStartEvent { SessionId = "s1" }, "assistant"));
-        await coordinator.ProjectAsync(context, Wrap(new TextMessageContentEvent { SessionId = "s1", Delta = "hi" }, "assistant"));
-        await coordinator.ProjectAsync(context, Wrap(new TextMessageEndEvent { SessionId = "s1", Content = "hello" }, "assistant"));
-        await coordinator.ProjectAsync(context, Wrap(new ToolCallEvent { ToolName = "search", CallId = "c1" }, "assistant"));
-        await coordinator.ProjectAsync(context, Wrap(new ToolResultEvent { CallId = "c1", Success = true }, "assistant"));
-        await coordinator.CompleteAsync(context, []);
-
-        var report = await store.GetAsync(context.RootActorId);
-        report.Should().NotBeNull();
-        report!.Timeline.Should().Contain(x => x.Stage == "llm.start");
-        report.Timeline.Should().Contain(x => x.Stage == "llm.content");
-        report.Timeline.Should().Contain(x => x.Stage == "llm.end");
-        report.Timeline.Should().Contain(x => x.Stage == "tool.call");
-        report.Timeline.Should().Contain(x => x.Stage == "tool.result");
-        report.RoleReplies.Should().ContainSingle(x => x.RoleId == "assistant");
+        services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
+            keySelector: report => report.RootActorId,
+            keyFormatter: key => key,
+            listSortSelector: report => report.CreatedAt,
+            listTakeMax: 200);
+        services.AddInMemoryGraphStoreRegistration();
     }
 
-    private static EventEnvelope Wrap(IMessage evt, string publisherId = "test") => new()
-    {
-        Id = Guid.NewGuid().ToString("N"),
-        Timestamp = Timestamp.FromDateTime(DateTime.UtcNow),
-        Payload = Any.Pack(evt),
-        PublisherId = publisherId,
-        Direction = EventDirection.Down,
-    };
-
-    private static void RegisterElasticsearchProvider(IServiceCollection services)
+    private static void RegisterElasticsearchDocumentProvider(IServiceCollection services)
     {
-        services.AddElasticsearchReadModelStoreRegistration<WorkflowExecutionReport, string>(
+        services.AddElasticsearchDocumentStoreRegistration<WorkflowExecutionReport, string>(
             optionsFactory: _ => new ElasticsearchProjectionReadModelStoreOptions
             {
                 Endpoints = ["http://localhost:9200"],
-                IndexPrefix = "aevatar-test",
-                AutoCreateIndex = false,
             },
-            indexScope: "workflow-execution-reports",
-            keySelector: report => report.RootActorId,
-            keyFormatter: key => key);
-        services.AddElasticsearchRelationStoreRegistration();
-    }
-
-    private static void RegisterInMemoryProvider(IServiceCollection services)
-    {
-        services.AddInMemoryReadModelStoreRegistration<WorkflowExecutionReport, string>(
-            keySelector: report => report.RootActorId,
-            keyFormatter: key => key,
-            listSortSelector: report => report.StartedAt);
-        services.AddInMemoryRelationStoreRegistration();
-    }
-
-    private static void RegisterNeo4jProvider(IServiceCollection services)
-    {
-        services.AddNeo4jReadModelStoreRegistration<WorkflowExecutionReport, string>(
-            optionsFactory: _ => new Neo4jProjectionReadModelStoreOptions
+            indexScopeFactory: sp =>
             {
-                Uri = "bolt://localhost:7687",
-                Username = "neo4j",
-                Password = "test",
-                AutoCreateConstraints = false,
+                var metadataResolver = sp.GetRequiredService<IProjectionDocumentMetadataResolver>();
+                return metadataResolver.Resolve<WorkflowExecutionReport>().IndexName;
             },
-            scope: "workflow-execution-reports",
             keySelector: report => report.RootActorId,
             keyFormatter: key => key);
-        services.AddNeo4jRelationStoreRegistration(
-            optionsFactory: _ => new Neo4jProjectionRelationStoreOptions
-            {
-                Uri = "bolt://localhost:7687",
-                Username = "neo4j",
-                Password = "test",
-                AutoCreateConstraints = false,
-            },
-            scope: WorkflowExecutionRelationConstants.Scope);
     }
 
     private static void ConfigureStoreSelectionOptions(
@@ -483,31 +131,9 @@ private static void ConfigureStoreSelectionOptions(
             sp.GetRequiredService<ProjectionReadModelRuntimeOptions>()));
     }
 
-    public sealed class CustomChatRequestReducer : WorkflowExecutionEventReducerBase<ChatRequestEvent>
-    {
-        protected override bool Reduce(
-            WorkflowExecutionReport report,
-            WorkflowExecutionProjectionContext context,
-            EventEnvelope envelope,
-            ChatRequestEvent evt,
-            DateTimeOffset now)
-        {
-            report.Timeline.Add(new WorkflowExecutionTimelineEvent
-            {
-                Timestamp = now,
-                Stage = "custom.chat.request",
-                Message = evt.Prompt ?? "",
-                AgentId = envelope.PublisherId ?? "",
-                EventType = envelope.Payload?.TypeUrl ?? "",
-            });
-
-            return true;
-        }
-    }
-
-    private static async Task StartHostedServicesAsync(ServiceProvider provider)
+    private static async Task StartHostedServicesAsync(IServiceProvider provider)
     {
-        var hostedServices = provider.GetServices<IHostedService>();
+        var hostedServices = provider.GetServices<IHostedService>().ToList();
         foreach (var hostedService in hostedServices)
             await hostedService.StartAsync(CancellationToken.None);
     }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
index b000f6a4d..977470bbd 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
@@ -4,6 +4,7 @@
 using Aevatar.CQRS.Projection.Core.Orchestration;
 using Aevatar.CQRS.Projection.Core.Streaming;
 using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
+using Aevatar.CQRS.Projection.Runtime.Runtime;
 using Aevatar.Foundation.Abstractions.Persistence;
 using Aevatar.Foundation.Abstractions.Deduplication;
 using Aevatar.Foundation.Core.EventSourcing;
@@ -538,9 +539,16 @@ private static ProjectionPortsHarness CreateService(
             forwardingRegistry);
         var subscriptionHub = new ActorStreamSubscriptionHub<EventEnvelope>(streams);
         store = new ObservableWorkflowExecutionReadModelStore();
-        var projector = new WorkflowExecutionReadModelProjector(
+        var resolvedClock = clock ?? new SystemProjectionClock();
+        var relationStore = new InMemoryProjectionRelationStore();
+        var graphStore = new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(relationStore);
+        var materializationRouter = new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
             store,
+            graphStore);
+        var projector = new WorkflowExecutionReadModelProjector(
+            materializationRouter,
             new TestEventDeduplicator(),
+            resolvedClock,
             BuildReducers());
         var coordinator = new ProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>([projector]);
         var dispatcher = new ProjectionDispatcher<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>(coordinator);
@@ -570,7 +578,6 @@ private static ProjectionPortsHarness CreateService(
         var ownershipCoordinator = new ActorProjectionOwnershipCoordinator(
             runtime,
             ownershipTypeVerifier);
-        var resolvedClock = clock ?? new SystemProjectionClock();
         runEventStreamHub = new ProjectionSessionEventHub<WorkflowRunEvent>(
             streams,
             new WorkflowRunEventSessionCodec());
@@ -578,11 +585,11 @@ private static ProjectionPortsHarness CreateService(
         var leaseManager = new WorkflowProjectionLeaseManager(ownershipCoordinator);
         var sinkManager = new WorkflowProjectionSinkSubscriptionManager(runEventStreamHub);
         var sinkFailurePolicy = new WorkflowProjectionSinkFailurePolicy(sinkManager, runEventStreamHub, resolvedClock);
-        var readModelUpdater = new WorkflowProjectionReadModelUpdater(store, resolvedClock);
+        var readModelUpdater = new WorkflowProjectionReadModelUpdater(materializationRouter, resolvedClock);
         var queryReader = new WorkflowProjectionQueryReader(
             store,
             mapper,
-            new InMemoryProjectionRelationStore());
+            graphStore);
         var activationService = new WorkflowProjectionActivationService(
             lifecycle,
             resolvedClock,
@@ -614,16 +621,21 @@ private static ProjectionPortsHarness CreateServiceForStartFailure(
     {
         var store = CreateStore();
         var clock = new SystemProjectionClock();
+        var relationStore = new InMemoryProjectionRelationStore();
+        var graphStore = new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(relationStore);
+        var materializationRouter = new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
+            store,
+            graphStore);
         var runEventHub = new NoOpWorkflowRunEventHub();
         var mapper = new WorkflowExecutionReadModelMapper();
         var leaseManager = new WorkflowProjectionLeaseManager(ownershipCoordinator);
         var sinkManager = new WorkflowProjectionSinkSubscriptionManager(runEventHub);
         var sinkFailurePolicy = new WorkflowProjectionSinkFailurePolicy(sinkManager, runEventHub, clock);
-        var readModelUpdater = new WorkflowProjectionReadModelUpdater(store, clock);
+        var readModelUpdater = new WorkflowProjectionReadModelUpdater(materializationRouter, clock);
         var queryReader = new WorkflowProjectionQueryReader(
             store,
             mapper,
-            new InMemoryProjectionRelationStore());
+            graphStore);
         var activationService = new WorkflowProjectionActivationService(
             lifecycle,
             clock,
@@ -802,6 +814,14 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             WorkflowActorRelationQueryOptions? options = null,
             CancellationToken ct = default)
             => _queryPort.GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
+
+        public Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
+            string actorId,
+            int depth = 2,
+            int take = 200,
+            WorkflowActorRelationQueryOptions? options = null,
+            CancellationToken ct = default)
+            => _queryPort.GetActorGraphEnrichedSnapshotAsync(actorId, depth, take, options, ct);
     }
 
     private sealed class ObservableWorkflowExecutionReadModelStore
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
index cab5c203a..aee77fa68 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
@@ -3,6 +3,7 @@
 using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.CQRS.Projection.Core.Orchestration;
 using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
+using Aevatar.CQRS.Projection.Runtime.Runtime;
 using Aevatar.Foundation.Abstractions.Deduplication;
 using Aevatar.Workflow.Projection;
 using Aevatar.Workflow.Projection.ReadModels;
@@ -24,6 +25,11 @@ public class WorkflowExecutionReadModelProjectorTests
         keySelector: report => report.RootActorId,
         keyFormatter: key => key,
         listSortSelector: report => report.StartedAt);
+    private static IProjectionMaterializationRouter<WorkflowExecutionReport, string> CreateRouter(
+        InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> store) =>
+        new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
+            store,
+            new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(new InMemoryProjectionRelationStore()));
 
     private static IReadOnlyList<IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>> BuildReducers() =>
     [
@@ -60,7 +66,11 @@ private static EventEnvelope Wrap(
     public async Task Projector_ShouldBuildRunReadModel_EndToEnd()
     {
         var store = CreateStore();
-        var projector = new WorkflowExecutionReadModelProjector(store, CreateDeduplicator(), BuildReducers());
+        var projector = new WorkflowExecutionReadModelProjector(
+            CreateRouter(store),
+            CreateDeduplicator(),
+            new SystemProjectionClock(),
+            BuildReducers());
         var coordinator = new ProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>( [projector]);
 
         var context = new WorkflowExecutionProjectionContext
@@ -124,7 +134,11 @@ await coordinator.ProjectAsync(context, Wrap(new WorkflowCompletedEvent
     public async Task Projector_ShouldIgnoreUnknownEvents()
     {
         var store = CreateStore();
-        var projector = new WorkflowExecutionReadModelProjector(store, CreateDeduplicator(), BuildReducers());
+        var projector = new WorkflowExecutionReadModelProjector(
+            CreateRouter(store),
+            CreateDeduplicator(),
+            new SystemProjectionClock(),
+            BuildReducers());
         var coordinator = new ProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>( [projector]);
 
         var context = new WorkflowExecutionProjectionContext
@@ -154,7 +168,11 @@ await coordinator.ProjectAsync(context, Wrap(new ChatRequestEvent
     public async Task Projector_ShouldDeduplicateByEnvelopeId()
     {
         var store = CreateStore();
-        var projector = new WorkflowExecutionReadModelProjector(store, CreateDeduplicator(), BuildReducers());
+        var projector = new WorkflowExecutionReadModelProjector(
+            CreateRouter(store),
+            CreateDeduplicator(),
+            new SystemProjectionClock(),
+            BuildReducers());
         var coordinator = new ProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>( [projector]);
 
         var context = new WorkflowExecutionProjectionContext
@@ -194,7 +212,11 @@ public async Task Projector_NoOpReducer_ShouldNotAdvanceStateVersion()
         [
             new TextMessageStartProjectionReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>([]),
         ];
-        var projector = new WorkflowExecutionReadModelProjector(store, CreateDeduplicator(), reducers);
+        var projector = new WorkflowExecutionReadModelProjector(
+            CreateRouter(store),
+            CreateDeduplicator(),
+            new SystemProjectionClock(),
+            reducers);
         var coordinator = new ProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>([projector]);
 
         var context = new WorkflowExecutionProjectionContext
@@ -226,7 +248,11 @@ await coordinator.ProjectAsync(context, Wrap(new AIEvents.TextMessageStartEvent
     public async Task Projector_ShouldUseEnvelopeTimestamp_WhenProvided()
     {
         var store = CreateStore();
-        var projector = new WorkflowExecutionReadModelProjector(store, CreateDeduplicator(), BuildReducers());
+        var projector = new WorkflowExecutionReadModelProjector(
+            CreateRouter(store),
+            CreateDeduplicator(),
+            new SystemProjectionClock(),
+            BuildReducers());
         var coordinator = new ProjectionCoordinator<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>( [projector]);
 
         var context = new WorkflowExecutionProjectionContext
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs
deleted file mode 100644
index e0061e721..000000000
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionRelationProjectorTests.cs
+++ /dev/null
@@ -1,144 +0,0 @@
-using Aevatar.CQRS.Projection.Core.Abstractions;
-using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
-using Aevatar.Workflow.Core;
-using Aevatar.Workflow.Projection;
-using Aevatar.Workflow.Projection.Projectors;
-using Aevatar.Workflow.Projection.ReadModels;
-using FluentAssertions;
-using Google.Protobuf;
-using Google.Protobuf.WellKnownTypes;
-
-namespace Aevatar.Workflow.Host.Api.Tests;
-
-public sealed class WorkflowExecutionRelationProjectorTests
-{
-    [Fact]
-    public async Task ProjectAsync_WhenStepIdIsBlank_ShouldSkipContainsStepEdge()
-    {
-        var relationStore = new InMemoryProjectionRelationStore();
-        var projector = new WorkflowExecutionRelationProjector(relationStore);
-        var context = CreateContext();
-
-        await projector.InitializeAsync(context);
-        await projector.ProjectAsync(context, Wrap(new StepRequestEvent
-        {
-            StepId = "   ",
-            StepType = "llm_call",
-            TargetRole = "assistant",
-        }));
-
-        var runEdges = await relationStore.GetNeighborsAsync(new ProjectionRelationQuery
-        {
-            Scope = WorkflowExecutionRelationConstants.Scope,
-            RootNodeId = BuildRunNodeId(context),
-            Direction = ProjectionRelationDirection.Outbound,
-            Take = 50,
-        });
-
-        runEdges.Should().NotContain(x =>
-            string.Equals(x.RelationType, WorkflowExecutionRelationConstants.RelationContainsStep, StringComparison.Ordinal));
-    }
-
-    [Fact]
-    public async Task ProjectAsync_ShouldUpsertStepNodeFromRequestAndCompletionEvents()
-    {
-        var relationStore = new InMemoryProjectionRelationStore();
-        var projector = new WorkflowExecutionRelationProjector(relationStore);
-        var context = CreateContext();
-        var requestTime = new DateTime(2026, 2, 24, 8, 0, 0, DateTimeKind.Utc);
-        var completedTime = requestTime.AddSeconds(5);
-
-        await projector.InitializeAsync(context);
-        await projector.ProjectAsync(context, Wrap(new StepRequestEvent
-        {
-            StepId = "step-1",
-            StepType = "llm_call",
-            TargetRole = "assistant",
-        }, requestTime));
-        await projector.ProjectAsync(context, Wrap(new StepCompletedEvent
-        {
-            StepId = "step-1",
-            WorkerId = "assistant-1",
-            Success = true,
-            Output = "done",
-        }, completedTime));
-
-        var subgraph = await relationStore.GetSubgraphAsync(new ProjectionRelationQuery
-        {
-            Scope = WorkflowExecutionRelationConstants.Scope,
-            RootNodeId = BuildRunNodeId(context),
-            Direction = ProjectionRelationDirection.Outbound,
-            Depth = 2,
-            Take = 50,
-        });
-
-        subgraph.Edges.Should().ContainSingle(x =>
-            string.Equals(x.RelationType, WorkflowExecutionRelationConstants.RelationContainsStep, StringComparison.Ordinal));
-        var stepNode = subgraph.Nodes.Single(x =>
-            string.Equals(x.NodeType, WorkflowExecutionRelationConstants.StepNodeType, StringComparison.Ordinal));
-        stepNode.NodeId.Should().Be("step:root:cmd-1:step-1");
-        stepNode.Properties["commandId"].Should().Be("cmd-1");
-        stepNode.Properties["stepType"].Should().Be("llm_call");
-        stepNode.Properties["targetRole"].Should().Be("assistant");
-        stepNode.Properties["workerId"].Should().Be("assistant-1");
-        stepNode.Properties["success"].Should().Be("True");
-        stepNode.UpdatedAt.Should().Be(new DateTimeOffset(completedTime));
-    }
-
-    [Fact]
-    public async Task CompleteAsync_WhenTopologyContainsBlankNodes_ShouldSkipUnknownRelations()
-    {
-        var relationStore = new InMemoryProjectionRelationStore();
-        var projector = new WorkflowExecutionRelationProjector(relationStore);
-        var context = CreateContext();
-
-        await projector.InitializeAsync(context);
-        await projector.CompleteAsync(
-            context,
-            [
-                new WorkflowExecutionTopologyEdge("root-1", "worker-1"),
-                new WorkflowExecutionTopologyEdge("   ", "worker-2"),
-                new WorkflowExecutionTopologyEdge("root-2", "  "),
-            ]);
-
-        var subgraph = await relationStore.GetSubgraphAsync(new ProjectionRelationQuery
-        {
-            Scope = WorkflowExecutionRelationConstants.Scope,
-            RootNodeId = "root-1",
-            Direction = ProjectionRelationDirection.Both,
-            Depth = 2,
-            Take = 100,
-        });
-
-        subgraph.Nodes.Should().NotContain(x => string.Equals(x.NodeId, "unknown", StringComparison.Ordinal));
-        subgraph.Edges.Should().Contain(x =>
-            string.Equals(x.RelationType, WorkflowExecutionRelationConstants.RelationChildOf, StringComparison.Ordinal) &&
-            string.Equals(x.FromNodeId, "root-1", StringComparison.Ordinal) &&
-            string.Equals(x.ToNodeId, "worker-1", StringComparison.Ordinal));
-        subgraph.Edges.Should().NotContain(x =>
-            string.Equals(x.FromNodeId, "unknown", StringComparison.Ordinal) ||
-            string.Equals(x.ToNodeId, "unknown", StringComparison.Ordinal));
-    }
-
-    private static WorkflowExecutionProjectionContext CreateContext() => new()
-    {
-        ProjectionId = "projection-relation",
-        CommandId = "cmd-1",
-        RootActorId = "root",
-        WorkflowName = "direct",
-        StartedAt = new DateTimeOffset(2026, 2, 24, 7, 0, 0, TimeSpan.Zero),
-        Input = "hello",
-    };
-
-    private static EventEnvelope Wrap(IMessage evt, DateTime? utcTimestamp = null) => new()
-    {
-        Id = Guid.NewGuid().ToString("N"),
-        Timestamp = Timestamp.FromDateTime((utcTimestamp ?? DateTime.UtcNow).ToUniversalTime()),
-        Payload = Any.Pack(evt),
-        PublisherId = "root",
-        Direction = EventDirection.Down,
-    };
-
-    private static string BuildRunNodeId(WorkflowExecutionProjectionContext context) =>
-        $"run:{context.RootActorId}:{context.CommandId}";
-}
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index b24e322f2..c3da3857b 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -103,9 +103,9 @@ public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_S
         var configuration = new ConfigurationBuilder()
             .AddInMemoryCollection(new Dictionary<string, string?>
             {
-                ["Projection:ReadModel:Provider"] = ProjectionReadModelProviderNames.Elasticsearch,
-                ["Projection:ReadModel:RelationProvider"] = ProjectionReadModelProviderNames.InMemory,
-                ["Projection:ReadModel:Providers:Elasticsearch:Endpoints:0"] = "http://localhost:9200",
+                ["Projection:Document:Provider"] = ProjectionReadModelProviderNames.Elasticsearch,
+                ["Projection:Graph:Provider"] = ProjectionReadModelProviderNames.InMemory,
+                ["Projection:Document:Providers:Elasticsearch:Endpoints:0"] = "http://localhost:9200",
             })
             .Build();
 
@@ -127,8 +127,8 @@ public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_S
 
         using var provider = services.BuildServiceProvider();
         var selectionOptions = provider.GetRequiredService<IProjectionStoreSelectionRuntimeOptions>();
-        selectionOptions.ReadModelProvider.Should().Be(ProjectionReadModelProviderNames.Elasticsearch);
-        selectionOptions.RelationProvider.Should().Be(ProjectionReadModelProviderNames.InMemory);
+        selectionOptions.DocumentProvider.Should().Be(ProjectionReadModelProviderNames.Elasticsearch);
+        selectionOptions.GraphProvider.Should().Be(ProjectionReadModelProviderNames.InMemory);
     }
 
     [Fact]
@@ -138,7 +138,7 @@ public void AddWorkflowProjectionReadModelProviders_WhenProviderConfiguredUnknow
         var configuration = new ConfigurationBuilder()
             .AddInMemoryCollection(new Dictionary<string, string?>
             {
-                ["Projection:ReadModel:Provider"] = "UnknownProvider",
+                ["Projection:Document:Provider"] = "UnknownProvider",
             })
             .Build();
 
@@ -155,16 +155,16 @@ public void AddWorkflowProjectionReadModelProviders_WhenPolicyDeniesInMemoryRela
         var configuration = new ConfigurationBuilder()
             .AddInMemoryCollection(new Dictionary<string, string?>
             {
-                ["Projection:ReadModel:Provider"] = ProjectionReadModelProviderNames.Elasticsearch,
-                ["Projection:ReadModel:RelationProvider"] = ProjectionReadModelProviderNames.InMemory,
-                ["Projection:ReadModel:Providers:Elasticsearch:Endpoints:0"] = "http://localhost:9200",
-                ["Projection:Policies:DenyInMemoryRelationFactStore"] = "true",
+                ["Projection:Document:Provider"] = ProjectionReadModelProviderNames.Elasticsearch,
+                ["Projection:Graph:Provider"] = ProjectionReadModelProviderNames.InMemory,
+                ["Projection:Document:Providers:Elasticsearch:Endpoints:0"] = "http://localhost:9200",
+                ["Projection:Policies:DenyInMemoryGraphFactStore"] = "true",
             })
             .Build();
 
         Action act = () => services.AddWorkflowProjectionReadModelProviders(configuration);
 
         act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*InMemory relation provider is not allowed*");
+            .WithMessage("*InMemory graph provider is not allowed*");
     }
 }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
index dbf88f5c4..9f31ae9ba 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
@@ -1,5 +1,6 @@
 using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
+using Aevatar.CQRS.Projection.Runtime.Runtime;
 using Aevatar.Workflow.Application.Abstractions.Runs;
 using Aevatar.Workflow.Projection;
 using Aevatar.Workflow.Projection.Orchestration;
@@ -90,7 +91,11 @@ await store.UpsertAsync(new WorkflowExecutionReport
             EndedAt = startedAt.AddMinutes(-6),
             CompletionStatus = WorkflowExecutionCompletionStatus.Running,
         });
-        var updater = new WorkflowProjectionReadModelUpdater(store, new FixedClock(stoppedAt));
+        var updater = new WorkflowProjectionReadModelUpdater(
+            new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
+                store,
+                new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(new InMemoryProjectionRelationStore())),
+            new FixedClock(stoppedAt));
         var context = new WorkflowExecutionProjectionContext
         {
             ProjectionId = "projection-1",
@@ -162,7 +167,7 @@ await store.UpsertAsync(new WorkflowExecutionReport
         var reader = new WorkflowProjectionQueryReader(
             store,
             new WorkflowExecutionReadModelMapper(),
-            new InMemoryProjectionRelationStore());
+            new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(new InMemoryProjectionRelationStore()));
 
         var snapshot = await reader.GetActorSnapshotAsync("actor-3");
         var timeline = await reader.ListActorTimelineAsync("actor-3", take: 2);

From 6da09aa048330a64aa172059ea5f8af17495b60c Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 00:11:29 +0800
Subject: [PATCH 29/46] Enhance Projection Architecture with New Runtime
 Abstractions and Provider Updates

- Added `Aevatar.CQRS.Projection.Runtime.Abstractions` to support new runtime strategies and materialization contracts.
- Updated existing projection stores and providers to implement `IDocumentProjectionStore` and `IProjectionGraphStore` interfaces, enhancing document and graph capabilities.
- Refactored dependency injection configurations to register new services and ensure compatibility with the updated architecture.
- Improved documentation to reflect the architectural changes and provide clearer guidance on the new abstractions and provider capabilities.
---
 aevatar.slnx                                  |   1 +
 .../Aevatar.Demos.CaseProjection.csproj       |   1 +
 .../ServiceCollectionExtensions.cs            |   2 +-
 .../GlobalUsings.cs                           |   1 +
 .../Orchestration/CaseProjectionService.cs    |   4 +-
 .../Projectors/CaseReadModelProjector.cs      |   4 +-
 .../Stores/InMemoryCaseReadModelStore.cs      |   2 +-
 docs/CQRS_ARCHITECTURE.md                     |   2 +-
 ...ng-elasticsearch-readmodel-requirements.md |   2 +-
 ...readmodel-full-refactor-plan-2026-02-24.md | 467 +++---------------
 ...ojection-readmodel-scorecard-2026-02-24.md |  16 +-
 .../README.md                                 |   2 +-
 .../ProjectionQueryPortServiceBase.cs         |  18 +-
 src/Aevatar.CQRS.Projection.Core/README.md    |   2 +-
 ....Projection.Providers.Elasticsearch.csproj |   1 +
 .../ServiceCollectionExtensions.cs            |  10 +-
 .../GlobalUsings.cs                           |   1 +
 .../README.md                                 |   6 +-
 .../ElasticsearchProjectionReadModelStore.cs  |  11 +-
 ....CQRS.Projection.Providers.InMemory.csproj |   1 +
 .../ServiceCollectionExtensions.cs            |  30 +-
 .../GlobalUsings.cs                           |   1 +
 .../README.md                                 |   4 +-
 ...ore.cs => InMemoryProjectionGraphStore.cs} | 103 ++--
 .../InMemoryProjectionReadModelStore.cs       |  15 +-
 ...tar.CQRS.Projection.Providers.Neo4j.csproj |   1 +
 ...cs => Neo4jProjectionGraphStoreOptions.cs} |   4 +-
 .../ServiceCollectionExtensions.cs            |  34 +-
 .../GlobalUsings.cs                           |   1 +
 .../README.md                                 |   6 +-
 ...nStore.cs => Neo4jProjectionGraphStore.cs} |  97 ++--
 .../Stores/Neo4jProjectionReadModelStore.cs   |  15 +-
 .../DelegateProjectionStoreRegistration.cs    |   6 +-
 .../Core/IProjectionStoreRegistration.cs      |   4 +-
 .../Graphs/IProjectionGraphStoreFactory.cs    |   9 +
 .../IProjectionGraphStoreProviderRegistry.cs  |   6 +
 .../IProjectionGraphStoreProviderSelector.cs  |   9 +
 .../IProjectionDocumentMetadataResolver.cs    |   2 +-
 .../IProjectionDocumentStoreFactory.cs        |  10 +
 ...ProjectionDocumentStoreProviderRegistry.cs |   8 +
 ...ProjectionDocumentStoreProviderSelector.cs |  10 +
 .../IProjectionProviderCapabilityValidator.cs |  13 +
 .../ProjectionDocumentStoreSelector.cs        |  23 +
 .../ReadModels/ProjectionIndexKind.cs         |   8 +
 .../ProjectionProviderCapabilities.cs}        |  28 +-
 ...nProviderCapabilityValidationException.cs} |  14 +-
 .../ProjectionProviderCapabilityValidator.cs} |  22 +-
 .../ReadModels/ProjectionProviderNames.cs}    |   4 +-
 .../ReadModels/ProjectionStoreMode.cs         |   8 +
 .../ReadModels/ProjectionStoreRequirements.cs |  42 ++
 .../ProjectionStoreRuntimeOptions.cs          |  20 +
 .../ProjectionStoreSelectionOptions.cs}       |   4 +-
 .../Selection/IProjectionGraphMaterializer.cs |   7 +
 .../IProjectionMaterializationRouter.cs       |   2 +-
 .../IProjectionStoreSelectionPlanner.cs       |   4 +-
 ...IProjectionStoreSelectionRuntimeOptions.cs |   4 +-
 .../IProjectionStoreStartupValidator.cs       |  15 +
 .../ProjectionProviderSelectionException.cs   |   2 +-
 .../Selection/ProjectionStoreSelectionPlan.cs |   7 +
 .../Selection/ProjectionStoreSelector.cs      |  12 +-
 ...QRS.Projection.Runtime.Abstractions.csproj |  12 +
 .../GlobalUsings.cs                           |   1 +
 .../README.md                                 |  23 +
 .../Aevatar.CQRS.Projection.Runtime.csproj    |   1 +
 .../ServiceCollectionExtensions.cs            |  16 +-
 .../GlobalUsings.cs                           |   1 +
 src/Aevatar.CQRS.Projection.Runtime/README.md |   9 +-
 .../ProjectionDocumentMetadataResolver.cs     |   2 +-
 ...y.cs => ProjectionDocumentStoreFactory.cs} |  30 +-
 ...ProjectionDocumentStoreProviderRegistry.cs |  16 +
 ...rojectionDocumentStoreProviderSelector.cs} |  40 +-
 ...pter.cs => ProjectionGraphMaterializer.cs} |  54 +-
 ...tory.cs => ProjectionGraphStoreFactory.cs} |  24 +-
 ...> ProjectionGraphStoreProviderRegistry.cs} |   6 +-
 ...> ProjectionGraphStoreProviderSelector.cs} |  28 +-
 .../ProjectionMaterializationRouter.cs        |  14 +-
 ...ctionProviderCapabilityValidatorService.cs |  15 +
 .../ProjectionReadModelBindingResolver.cs     |  65 ---
 ...tionReadModelCapabilityValidatorService.cs |  15 -
 .../ProjectionReadModelProviderRegistry.cs    |  16 -
 .../ProjectionStoreSelectionPlanner.cs        |  50 +-
 .../ProjectionStoreStartupValidator.cs        |  36 +-
 .../README.md                                 |   2 +-
 .../Core/IProjectionStoreProviderMetadata.cs  |   6 -
 .../Graphs/IProjectionGraphStore.cs           |  18 +
 .../ProjectionGraphDirection.cs}              |   2 +-
 .../ProjectionGraphEdge.cs}                   |   4 +-
 .../ProjectionGraphNode.cs}                   |   2 +-
 .../ProjectionGraphQuery.cs}                  |   6 +-
 .../Graphs/ProjectionGraphSubgraph.cs         |  14 +
 .../ReadModels/GraphEdgeDescriptor.cs         |   2 +-
 .../ReadModels/IGraphProjectionStore.cs       |  15 -
 ...=> IProjectionDocumentMetadataProvider.cs} |   2 +-
 .../IProjectionReadModelBindingResolver.cs    |   8 -
 ...IProjectionReadModelCapabilityValidator.cs |  13 -
 .../IProjectionReadModelProviderRegistry.cs   |   8 -
 .../IProjectionReadModelProviderSelector.cs   |  10 -
 .../ReadModels/IProjectionReadModelStore.cs   |   8 -
 .../IProjectionReadModelStoreFactory.cs       |  10 -
 .../ProjectionReadModelBindingException.cs    |  33 --
 .../ProjectionReadModelIndexKind.cs           |   8 -
 .../ReadModels/ProjectionReadModelMode.cs     |   8 -
 .../ProjectionReadModelRequirements.cs        |  42 --
 .../ProjectionReadModelRuntimeOptions.cs      |  20 -
 .../ProjectionReadModelStoreSelector.cs       |  23 -
 .../Relations/IProjectionRelationStore.cs     |  18 -
 .../IProjectionRelationStoreFactory.cs        |   9 -
 ...ProjectionRelationStoreProviderRegistry.cs |   6 -
 ...ProjectionRelationStoreProviderSelector.cs |   9 -
 .../Relations/ProjectionRelationSubgraph.cs   |  14 -
 .../IProjectionStoreStartupValidator.cs       |  15 -
 .../Selection/ProjectionStoreSelectionPlan.cs |   7 -
 .../README.md                                 |  27 +-
 .../IWorkflowExecutionProjectionQueryPort.cs  |  10 +-
 ...orkflowExecutionQueryApplicationService.cs |  10 +-
 .../Queries/WorkflowExecutionQueryModels.cs   |  22 +-
 ...orkflowExecutionQueryApplicationService.cs |  16 +-
 .../CapabilityApi/ChatQueryEndpoints.cs       |  50 +-
 .../Aevatar.Workflow.Projection.csproj        |   1 +
 .../WorkflowExecutionProjectionOptions.cs     |   6 +-
 .../ServiceCollectionExtensions.cs            |  35 +-
 .../GlobalUsings.cs                           |   1 +
 ...ExecutionReportDocumentMetadataProvider.cs |   2 +-
 .../IWorkflowProjectionQueryReader.cs         |  10 +-
 ...WorkflowExecutionProjectionQueryService.cs |  44 +-
 .../WorkflowProjectionQueryReader.cs          |  56 +--
 ...ReadModelStartupValidationHostedService.cs |  26 +-
 .../Aevatar.Workflow.Projection/README.md     |  23 +-
 .../WorkflowExecutionGraphConstants.cs        |  18 +
 .../ReadModels/WorkflowExecutionReadModel.cs  |  24 +-
 .../WorkflowExecutionReadModelMapper.cs       |  20 +-
 .../WorkflowExecutionRelationConstants.cs     |  18 -
 ...Aevatar.Workflow.Extensions.Hosting.csproj |   1 +
 ...tionProviderServiceCollectionExtensions.cs |  41 +-
 .../Aevatar.CQRS.Projection.Core.Tests.csproj |   1 +
 .../GlobalUsings.cs                           |   1 +
 .../ProjectionReadModelRuntimeTests.cs        |  66 +--
 .../ProjectionReadModelStoreSelectorTests.cs  |  62 +--
 .../ProjectionStoreSelectionPlannerTests.cs   |  44 +-
 .../WorkflowApplicationLayerTests.cs          |  48 +-
 .../WorkflowRunOrchestrationComponentTests.cs |   8 +-
 .../Aevatar.Workflow.Host.Api.Tests.csproj    |   1 +
 .../ChatEndpointsInternalTests.cs             |  68 +--
 ...hatWebSocketCoordinatorAndProtocolTests.cs |  16 +-
 .../GlobalUsings.cs                           |   1 +
 ...orkflowCapabilityEndpointsCoverageTests.cs |  14 +-
 ...lowExecutionProjectionRegistrationTests.cs |  32 +-
 ...WorkflowExecutionProjectionServiceTests.cs |  28 +-
 ...orkflowExecutionReadModelProjectorTests.cs |   2 +-
 .../WorkflowHostingExtensionsCoverageTests.cs |  26 +-
 ...owProjectionOrchestrationComponentTests.cs |   4 +-
 tools/ci/architecture_guards.sh               |  10 +
 152 files changed, 1210 insertions(+), 1667 deletions(-)
 rename src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/{InMemoryProjectionRelationStore.cs => InMemoryProjectionGraphStore.cs} (66%)
 rename src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/{Neo4jProjectionRelationStoreOptions.cs => Neo4jProjectionGraphStoreOptions.cs} (80%)
 rename src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/{Neo4jProjectionRelationStore.cs => Neo4jProjectionGraphStore.cs} (85%)
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions => Aevatar.CQRS.Projection.Runtime.Abstractions}/Abstractions/Core/DelegateProjectionStoreRegistration.cs (82%)
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions => Aevatar.CQRS.Projection.Runtime.Abstractions}/Abstractions/Core/IProjectionStoreRegistration.cs (65%)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderRegistry.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions => Aevatar.CQRS.Projection.Runtime.Abstractions}/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs (74%)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderRegistry.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionProviderCapabilityValidator.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionDocumentStoreSelector.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionIndexKind.cs
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderCapabilities.cs => Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilities.cs} (57%)
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidationException.cs => Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidationException.cs} (60%)
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs => Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidator.cs} (72%)
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderNames.cs => Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderNames.cs} (58%)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreMode.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRequirements.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRuntimeOptions.cs
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelectionOptions.cs => Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreSelectionOptions.cs} (53%)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionGraphMaterializer.cs
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions => Aevatar.CQRS.Projection.Runtime.Abstractions}/Abstractions/Selection/IProjectionMaterializationRouter.cs (89%)
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions => Aevatar.CQRS.Projection.Runtime.Abstractions}/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs (60%)
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions => Aevatar.CQRS.Projection.Runtime.Abstractions}/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs (63%)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions => Aevatar.CQRS.Projection.Runtime.Abstractions}/Abstractions/Selection/ProjectionProviderSelectionException.cs (95%)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions => Aevatar.CQRS.Projection.Runtime.Abstractions}/Abstractions/Selection/ProjectionStoreSelector.cs (87%)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Aevatar.CQRS.Projection.Runtime.Abstractions.csproj
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/GlobalUsings.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
 rename src/Aevatar.CQRS.Projection.Runtime/Runtime/{ProjectionReadModelStoreFactory.cs => ProjectionDocumentStoreFactory.cs} (56%)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderRegistry.cs
 rename src/Aevatar.CQRS.Projection.Runtime/Runtime/{ProjectionReadModelProviderSelector.cs => ProjectionDocumentStoreProviderSelector.cs} (65%)
 rename src/Aevatar.CQRS.Projection.Runtime/Runtime/{ProjectionGraphStoreAdapter.cs => ProjectionGraphMaterializer.cs} (70%)
 rename src/Aevatar.CQRS.Projection.Runtime/Runtime/{ProjectionRelationStoreFactory.cs => ProjectionGraphStoreFactory.cs} (66%)
 rename src/Aevatar.CQRS.Projection.Runtime/Runtime/{ProjectionRelationStoreProviderRegistry.cs => ProjectionGraphStoreProviderRegistry.cs} (65%)
 rename src/Aevatar.CQRS.Projection.Runtime/Runtime/{ProjectionRelationStoreProviderSelector.cs => ProjectionGraphStoreProviderSelector.cs} (56%)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionProviderCapabilityValidatorService.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelCapabilityValidatorService.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
 rename src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/{Relations/ProjectionRelationDirection.cs => Graphs/ProjectionGraphDirection.cs} (73%)
 rename src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/{Relations/ProjectionRelationEdge.cs => Graphs/ProjectionGraphEdge.cs} (81%)
 rename src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/{Relations/ProjectionRelationNode.cs => Graphs/ProjectionGraphNode.cs} (89%)
 rename src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/{Relations/ProjectionRelationQuery.cs => Graphs/ProjectionGraphQuery.cs} (53%)
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSubgraph.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphProjectionStore.cs
 rename src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/{IReadModelDocumentMetadataProvider.cs => IProjectionDocumentMetadataProvider.cs} (68%)
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelCapabilityValidator.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderRegistry.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderSelector.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStoreFactory.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelBindingException.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelIndexKind.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelMode.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreFactory.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderSelector.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionGraphConstants.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionRelationConstants.cs

diff --git a/aevatar.slnx b/aevatar.slnx
index f89055595..2ba1dd45f 100644
--- a/aevatar.slnx
+++ b/aevatar.slnx
@@ -21,6 +21,7 @@
     <Project Path="src\Aevatar.Foundation.Runtime.Hosting\Aevatar.Foundation.Runtime.Hosting.csproj" />
     <Project Path="src\Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet\Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.csproj" />
     <Project Path="src/Aevatar.Foundation.Runtime.Implementations.Orleans/Aevatar.Foundation.Runtime.Implementations.Orleans.csproj" />
+    <Project Path="src/Aevatar.CQRS.Projection.Runtime.Abstractions/Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
     <Project Path="src/Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming/Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming.csproj" />
     <Project Path="src/Aevatar.Foundation.Runtime.Implementations.Orleans.Transport.MassTransit/Aevatar.Foundation.Runtime.Implementations.Orleans.Transport.MassTransit.csproj" />
     <Project Path="src/Aevatar.Foundation.Runtime.Streaming.Implementations.MassTransit/Aevatar.Foundation.Runtime.Streaming.Implementations.MassTransit.csproj" />
diff --git a/demos/Aevatar.Demos.CaseProjection/Aevatar.Demos.CaseProjection.csproj b/demos/Aevatar.Demos.CaseProjection/Aevatar.Demos.CaseProjection.csproj
index c9b34160d..9327f0e05 100644
--- a/demos/Aevatar.Demos.CaseProjection/Aevatar.Demos.CaseProjection.csproj
+++ b/demos/Aevatar.Demos.CaseProjection/Aevatar.Demos.CaseProjection.csproj
@@ -9,6 +9,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Runtime.Abstractions\Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.Demos.CaseProjection.Abstractions\Aevatar.Demos.CaseProjection.Abstractions.csproj" />
   </ItemGroup>
diff --git a/demos/Aevatar.Demos.CaseProjection/DependencyInjection/ServiceCollectionExtensions.cs b/demos/Aevatar.Demos.CaseProjection/DependencyInjection/ServiceCollectionExtensions.cs
index 386267d92..3c8f45564 100644
--- a/demos/Aevatar.Demos.CaseProjection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/demos/Aevatar.Demos.CaseProjection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -23,7 +23,7 @@ public static IServiceCollection AddCaseProjectionDemo(
         services.TryAddSingleton<CaseProjectionOptions>(sp =>
             sp.GetRequiredService<CaseProjectionOptions>());
         services.TryAddSingleton<InMemoryCaseReadModelStore>();
-        services.TryAddSingleton<IProjectionReadModelStore<CaseProjectionReadModel, string>>(sp =>
+        services.TryAddSingleton<IDocumentProjectionStore<CaseProjectionReadModel, string>>(sp =>
             sp.GetRequiredService<InMemoryCaseReadModelStore>());
         services.TryAddSingleton<IProjectionClock, SystemProjectionClock>();
         services.TryAddSingleton<ICaseProjectionContextFactory, DefaultCaseProjectionContextFactory>();
diff --git a/demos/Aevatar.Demos.CaseProjection/GlobalUsings.cs b/demos/Aevatar.Demos.CaseProjection/GlobalUsings.cs
index 103add2eb..e8a1883b0 100644
--- a/demos/Aevatar.Demos.CaseProjection/GlobalUsings.cs
+++ b/demos/Aevatar.Demos.CaseProjection/GlobalUsings.cs
@@ -1,5 +1,6 @@
 global using Aevatar.CQRS.Projection.Core.Abstractions;
 global using Aevatar.CQRS.Projection.Stores.Abstractions;
+global using Aevatar.CQRS.Projection.Runtime.Abstractions;
 global using Aevatar.CQRS.Projection.Core.Orchestration;
 global using Aevatar.CQRS.Projection.Core.Streaming;
 global using Aevatar.Demos.CaseProjection.Abstractions;
diff --git a/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs b/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs
index 7f7365ee0..100c5b5ba 100644
--- a/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs
+++ b/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs
@@ -11,7 +11,7 @@ public sealed class CaseProjectionService : ICaseProjectionService
 {
     private readonly CaseProjectionOptions _options;
     private readonly IProjectionLifecycleService<CaseProjectionContext, IReadOnlyList<CaseTopologyEdge>> _lifecycle;
-    private readonly IProjectionReadModelStore<CaseProjectionReadModel, string> _store;
+    private readonly IDocumentProjectionStore<CaseProjectionReadModel, string> _store;
     private readonly IProjectionClock _clock;
     private readonly ICaseProjectionContextFactory _contextFactory;
     private readonly ConcurrentDictionary<string, CaseProjectionContext> _contexts = new(StringComparer.Ordinal);
@@ -19,7 +19,7 @@ public sealed class CaseProjectionService : ICaseProjectionService
     public CaseProjectionService(
         CaseProjectionOptions options,
         IProjectionLifecycleService<CaseProjectionContext, IReadOnlyList<CaseTopologyEdge>> lifecycle,
-        IProjectionReadModelStore<CaseProjectionReadModel, string> store,
+        IDocumentProjectionStore<CaseProjectionReadModel, string> store,
         IProjectionClock clock,
         ICaseProjectionContextFactory contextFactory)
     {
diff --git a/demos/Aevatar.Demos.CaseProjection/Projectors/CaseReadModelProjector.cs b/demos/Aevatar.Demos.CaseProjection/Projectors/CaseReadModelProjector.cs
index 813745b9f..3a3d06b71 100644
--- a/demos/Aevatar.Demos.CaseProjection/Projectors/CaseReadModelProjector.cs
+++ b/demos/Aevatar.Demos.CaseProjection/Projectors/CaseReadModelProjector.cs
@@ -5,11 +5,11 @@ namespace Aevatar.Demos.CaseProjection.Projectors;
 public sealed class CaseReadModelProjector
     : IProjectionProjector<CaseProjectionContext, IReadOnlyList<CaseTopologyEdge>>
 {
-    private readonly IProjectionReadModelStore<CaseProjectionReadModel, string> _store;
+    private readonly IDocumentProjectionStore<CaseProjectionReadModel, string> _store;
     private readonly IReadOnlyDictionary<string, IReadOnlyList<IProjectionEventReducer<CaseProjectionReadModel, CaseProjectionContext>>> _reducersByType;
 
     public CaseReadModelProjector(
-        IProjectionReadModelStore<CaseProjectionReadModel, string> store,
+        IDocumentProjectionStore<CaseProjectionReadModel, string> store,
         IEnumerable<IProjectionEventReducer<CaseProjectionReadModel, CaseProjectionContext>> reducers)
     {
         _store = store;
diff --git a/demos/Aevatar.Demos.CaseProjection/Stores/InMemoryCaseReadModelStore.cs b/demos/Aevatar.Demos.CaseProjection/Stores/InMemoryCaseReadModelStore.cs
index 426677fcd..0dff85f88 100644
--- a/demos/Aevatar.Demos.CaseProjection/Stores/InMemoryCaseReadModelStore.cs
+++ b/demos/Aevatar.Demos.CaseProjection/Stores/InMemoryCaseReadModelStore.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.Demos.CaseProjection.Stores;
 
-public sealed class InMemoryCaseReadModelStore : IProjectionReadModelStore<CaseProjectionReadModel, string>
+public sealed class InMemoryCaseReadModelStore : IDocumentProjectionStore<CaseProjectionReadModel, string>
 {
     private readonly object _gate = new();
     private readonly Dictionary<string, CaseProjectionReadModel> _reports = new(StringComparer.Ordinal);
diff --git a/docs/CQRS_ARCHITECTURE.md b/docs/CQRS_ARCHITECTURE.md
index 5360bb8fb..38014d47b 100644
--- a/docs/CQRS_ARCHITECTURE.md
+++ b/docs/CQRS_ARCHITECTURE.md
@@ -45,7 +45,7 @@ flowchart LR
 3. 未命中 reducer 的事件必须为 no-op。
 4. Workflow 投影生命周期通过 lease/session 句柄管理，不允许 `actorId -> context` 反查。
 5. 同一 `EventEnvelope` 分发到多个 projector 时采用“一对多全分支尝试”语义：单个 projector 失败不阻断其他 projector 执行，最终以聚合异常统一回传。
-6. `Projection:ReadModel:Bindings` 的 key 必须使用 read model `Type.FullName`，禁止短类名绑定。
+6. 禁止 `Projection:ReadModel:Bindings` 与任何 BindingResolver 路由；投影存储路由必须由 `IDocumentReadModel/IGraphReadModel` 能力自动决策。
 7. Host 组合层按配置仅注册所需 provider 组合，不允许无条件并列注册 InMemory/Elasticsearch/Neo4j。
 
 ## 5.1 编排减重落地（2026-02-22）
diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index a751555e1..fc9d0a49c 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -123,7 +123,7 @@
 - 当前行为：
   1. Host 启动阶段执行 read-model provider 选择 + 能力校验 dry-run。
   2. provider 缺失或能力不匹配可在启动阶段 fail-fast。
-  3. 可通过 `WorkflowExecutionProjection:ValidateReadModelProviderOnStartup` 控制启用（默认开启）。
+  3. 可通过 `WorkflowExecutionProjection:ValidateDocumentProviderOnStartup` 控制启用（默认开启）。
 
 ## 7. 需求分解与状态矩阵
 
diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
index a9667f370..4ef0b76fa 100644
--- a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
+++ b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
@@ -1,422 +1,87 @@
-# Projection ReadModel 全量重构实施计划（v2，按仓库现状细化）
-
-## 1. 本版更新说明
-
-1. 采用你提出的核心规则：**索引 metadata 由 `TReadModel` 泛型 provider 提供**，不挂在 readmodel 实例方法上。
-2. 计划已按当前仓库真实结构重写，覆盖到项目/目录/文件级实施方式。
-3. 继续执行“无兼容重构”：删除旧链路，不保留兼容层和回退开关。
-
-### 1.1 已落地实现（2026-02-24）
-
-1. 已新增 capability-first 抽象：`IProjectionReadModel`、`IDocumentReadModel`、`IGraphReadModel`、`IDocumentProjectionStore`、`IGraphProjectionStore`、`IProjectionMaterializationRouter`。
-2. 已落地泛型 metadata 链路：`IReadModelDocumentMetadataProvider<TReadModel>` + `IProjectionDocumentMetadataResolver`。
-3. 已落地 Runtime 双写路由：`ProjectionMaterializationRouter<TReadModel, TKey>` 与 `ProjectionGraphStoreAdapter<TReadModel>`。
-4. 已删除 `WorkflowExecutionRelationProjector`，关系写入改为 `WorkflowExecutionReport` 的 `GraphNodes/GraphEdges` 驱动。
-5. Host 配置已切换为 `Projection:Document:*` / `Projection:Graph:*`，并禁用 Elasticsearch 作为 graph provider。
-6. Workflow Query 已新增 `graph-enriched` 聚合查询与 endpoint：`/actors/{actorId}/graph-enriched`。
-
-## 2. 目标与边界
-
-1. 目标：开发者只定义 `State -> ReadModel`，并通过 readmodel 能力接口自动决定写入文档库/图库。
-2. 目标：消除 `Bindings[Type.FullName]` 配置路由，改为类型能力路由。
-3. 目标：消除 `ReadModel` 与 `Relation` 双体系心智割裂。
-4. 非目标：不做旧配置兼容，不做灰度并存。
-
-## 3. 仓库现状映射（实施基准）
-
-| 层 | 项目 | 现状职责 | 重构动作 |
-|---|---|---|---|
-| 抽象 | `src/Aevatar.CQRS.Projection.Stores.Abstractions` | ReadModel/Relation/Selection 抽象 | 重构为 capability-first 抽象中心 |
-| 运行时 | `src/Aevatar.CQRS.Projection.Runtime` | provider 选择、binding 解析、factory | 删除 binding 路径，新增 capability router |
-| Provider | `src/Aevatar.CQRS.Projection.Providers.InMemory` | InMemory ReadModel + Relation | 拆分 Doc/Graph provider 能力注册 |
-| Provider | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch` | ES ReadModel + (弱)Relation | 收敛为 Document provider |
-| Provider | `src/Aevatar.CQRS.Projection.Providers.Neo4j` | Neo4j ReadModel + Relation | 收敛为 Graph provider（可选保留 Doc） |
-| 读侧业务 | `src/workflow/Aevatar.Workflow.Projection` | ReadModel projector + Relation projector | 合并为单 readmodel materialization 主链 |
-| 应用层 | `src/workflow/Aevatar.Workflow.Application` | 查询/运行编排 | 查询改为统一 facade/port 聚合 |
-| 接口层 | `src/workflow/Aevatar.Workflow.Infrastructure` | endpoints 协议适配 | 新增 graph-enriched endpoint，禁止手工两跳拼装 |
-| Host 组合 | `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting` | provider 配置与注册 | 改为 Document/Graph provider 独立配置 |
-| 门禁 | `tools/ci/architecture_guards.sh` 等 | 架构与路由守卫 | 新增 capability-first 规则守卫 |
-
-## 4. 目标架构（最终）
+# Projection Abstractions 重构落地报告（v6，无兼容）
+
+> 日期：2026-02-24
+
+## 1. 本次重构已完成内容
+
+1. 新增 `Aevatar.CQRS.Projection.Runtime.Abstractions`，承接 Runtime 策略/选择/Factory/Materialization 契约。
+2. `Aevatar.CQRS.Projection.Stores.Abstractions` 彻底收敛为纯存储契约：
+   - 仅保留 `IDocumentProjectionStore<,>`、`IProjectionGraphStore`、ReadModel/Graph 结构描述。
+   - 删除 Selection/Core 运行时编排抽象（迁移至 Runtime.Abstractions）。
+3. 删除 Graph 重复抽象：
+   - 删除 `IGraphProjectionStore<TReadModel>`。
+   - 新增 `IProjectionGraphMaterializer<TReadModel>`。
+   - `ProjectionMaterializationRouter` 改为依赖 `IProjectionGraphMaterializer<TReadModel>`。
+4. Runtime 实现落地：
+   - `ProjectionGraphStoreAdapter<TReadModel>` 重构为 `ProjectionGraphMaterializer<TReadModel>`。
+   - DI 改为注册 `IProjectionGraphMaterializer<>`。
+5. Provider 元数据重复抽象清理：
+   - 删除 `IProjectionStoreProviderMetadata`。
+   - Provider 能力统一通过 `IProjectionStoreRegistration.Capabilities` 描述。
+6. 命名语义统一：
+   - `ProjectionDocumentStoreSelectionOptions` -> `ProjectionStoreSelectionOptions`
+   - `ProjectionDocumentRequirements` -> `ProjectionStoreRequirements`
+
+## 2. 当前边界（As-Built）
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart LR
-    subgraph D["Domain ReadModel"]
-        D1["WorkflowExecutionReport"]
-        D2["IDocumentReadModel"]
-        D3["IGraphReadModel"]
-        D4["Graph Node/Edges Data"]
-    end
-
-    subgraph A["Projection Application"]
-        A1["Reducers"]
-        A2["ReadModel Projector"]
-        A3["Materialization Router"]
-        A4["Projection Query Facade"]
-    end
-
-    subgraph I["Infrastructure Stores"]
-        I1["Document Store (ES/InMemory)"]
-        I2["Graph Store (Neo4j/InMemory)"]
-        I3["ReadModel Metadata Provider<TReadModel>"]
-    end
-
-    subgraph H["Host/API"]
-        H1["/actors/{id}"]
-        H2["/actors/{id}/relation-subgraph"]
-        H3["/actors/{id}/graph-enriched"]
-    end
-
-    D1 --> D2
-    D1 --> D3
-    D3 --> D4
-
-    A1 --> A2 --> A3
-    A3 --> I1
-    A3 --> I2
-    D2 --> I3 --> I1
-
-    H1 --> A4
-    H2 --> A4
-    H3 --> A4
-    A4 --> I1
-    A4 --> I2
-```
-
-## 5. 核心契约（重构后）
-
-### 5.1 ReadModel 能力接口
-
-```csharp
-public interface IProjectionReadModel
-{
-    string Id { get; }
-}
-
-public interface IDocumentReadModel : IProjectionReadModel
-{
-    string DocumentScope { get; }
-}
-
-public interface IGraphReadModel : IProjectionReadModel
-{
-    GraphNodeDescriptor GraphNode { get; }
-    IReadOnlyList<GraphEdgeDescriptor> GraphEdges { get; }
-}
-
-public sealed record GraphNodeDescriptor(
-    string NodeId,
-    string NodeType,
-    IReadOnlyDictionary<string, string> Properties);
-
-public sealed record GraphEdgeDescriptor(
-    string EdgeId,
-    string RelationType,
-    string FromNodeId,
-    string ToNodeId,
-    IReadOnlyDictionary<string, string> Properties);
-```
-
-### 5.2 索引 metadata（泛型 provider）
-
-```csharp
-public sealed record DocumentIndexMetadata(
-    string IndexName,
-    string MappingJson,
-    IReadOnlyDictionary<string, string> Settings,
-    IReadOnlyDictionary<string, string> Aliases);
-
-public interface IReadModelDocumentMetadataProvider<TReadModel>
-    where TReadModel : class, IDocumentReadModel
-{
-    DocumentIndexMetadata Metadata { get; }
-}
+    SA["Aevatar.CQRS.Projection.Stores.Abstractions\nDocument/Graph Store Contracts"]
+    RA["Aevatar.CQRS.Projection.Runtime.Abstractions\nSelection + Provider Registration + Materialization Contracts"]
+    CA["Aevatar.CQRS.Projection.Core.Abstractions\nPipeline Protocol"]
+    RT["Aevatar.CQRS.Projection.Runtime\nRuntime Implementations"]
+    PR["Providers\nInMemory/Elasticsearch/Neo4j"]
+    WF["Workflow.Projection"]
+
+    PR --> SA
+    PR --> RA
+    RT --> SA
+    RT --> RA
+    RT --> CA
+    WF --> SA
+    WF --> RA
+    WF --> CA
 ```
 
-约束：
-
-1. `DocumentIndexMetadata` 必须由 `TReadModel` 对应 provider 给出，禁止从运行时对象反射/动态拼接。
-2. `IReadModelDocumentMetadataProvider<TReadModel>` 在 DI 中必须唯一注册。
-
-### 5.3 路由与写入契约
+## 3. 关键契约（最终）
 
 ```csharp
-public interface IDocumentProjectionStore<TReadModel, in TKey>
-    where TReadModel : class, IDocumentReadModel
+public interface IProjectionGraphStore
 {
-    Task UpsertAsync(TReadModel readModel, CancellationToken ct = default);
-    Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default);
-    Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default);
+    Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default);
+    Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default);
+    Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default);
+    Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(ProjectionGraphQuery query, CancellationToken ct = default);
+    Task<ProjectionGraphSubgraph> GetSubgraphAsync(ProjectionGraphQuery query, CancellationToken ct = default);
 }
 
-public interface IGraphProjectionStore<TReadModel>
-    where TReadModel : class, IGraphReadModel
+public interface IProjectionGraphMaterializer<in TReadModel>
+    where TReadModel : class
 {
     Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct = default);
-    Task<ProjectionRelationSubgraph> GetSubgraphAsync(string nodeId, int depth, int take, CancellationToken ct = default);
-}
-
-public interface IProjectionMaterializationRouter<TReadModel, in TKey>
-    where TReadModel : class, IProjectionReadModel
-{
-    Task MaterializeAsync(TReadModel readModel, TKey key, CancellationToken ct = default);
 }
 ```
 
-## 6. 关键实施策略
-
-1. 单一 projector 产出 `ReadModel`，materialization router 根据接口能力执行 Doc/Graph 单写或双写。
-2. Graph 不再由单独 relation projector 维护；关系由 `IGraphReadModel.GraphEdges` 数据驱动。
-3. Graph 写入必须执行边差异收敛（`toAdd/toUpdate/toDelete`），不能只 upsert。
-4. 查询统一由 projection query facade 完成，endpoint 不手工先查图再查文档。
-5. 默认 deduplicator 改为持久化实现，passthrough 只在测试 profile 注入。
-6. 统一时间源到 `IProjectionClock`。
-
-## 7. 文件级改造清单（按项目）
-
-## 7.1 `src/Aevatar.CQRS.Projection.Stores.Abstractions`
-
-新增：
-
-1. `Abstractions/ReadModels/IProjectionReadModel.cs`
-2. `Abstractions/ReadModels/IDocumentReadModel.cs`
-3. `Abstractions/ReadModels/IGraphReadModel.cs`
-4. `Abstractions/ReadModels/GraphNodeDescriptor.cs`
-5. `Abstractions/ReadModels/GraphEdgeDescriptor.cs`
-6. `Abstractions/ReadModels/DocumentIndexMetadata.cs`
-7. `Abstractions/ReadModels/IReadModelDocumentMetadataProvider.cs`
-8. `Abstractions/ReadModels/IDocumentProjectionStore.cs`
-9. `Abstractions/ReadModels/IGraphProjectionStore.cs`
-10. `Abstractions/Selection/IProjectionMaterializationRouter.cs`
-
-修改：
-
-1. `Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs`（移除 `Bindings`）
-2. `Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs`（改为 Document/Graph provider 选项）
-3. `Abstractions/ReadModels/ProjectionReadModelRequirements.cs`（改为 capability bool 集合）
-
-删除：
-
-1. `Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs`
-2. `Abstractions/ReadModels/ProjectionReadModelBindingException.cs`
-3. `Abstractions/ReadModels/ProjectionReadModelIndexKind.cs`
-
-## 7.2 `src/Aevatar.CQRS.Projection.Runtime`
-
-新增：
-
-1. `Runtime/ProjectionReadModelCapabilityInspector.cs`
-2. `Runtime/ProjectionMaterializationRouter.cs`
-3. `Runtime/ProjectionDocumentMetadataResolver.cs`
-4. `Runtime/ProjectionGraphWritePlanner.cs`
-
-修改：
-
-1. `Runtime/ProjectionStoreSelectionPlanner.cs`（基于 capability，不再读取 binding）
-2. `Runtime/ProjectionReadModelProviderSelector.cs`（Document provider 选择）
-3. `Runtime/ProjectionRelationStoreProviderSelector.cs`（重命名为 Graph provider selector）
-4. `DependencyInjection/ServiceCollectionExtensions.cs`（注册新 router/resolver）
-
-删除：
-
-1. `Runtime/ProjectionReadModelBindingResolver.cs`
-
-## 7.3 `src/Aevatar.CQRS.Projection.Providers.InMemory`
-
-新增：
-
-1. `Stores/InMemoryDocumentProjectionStore.cs`
-2. `Stores/InMemoryGraphProjectionStore.cs`
-
-修改：
+## 4. 目录变化（核心）
 
-1. `DependencyInjection/ServiceCollectionExtensions.cs`（改为注册 `IDocumentProjectionStore` / `IGraphProjectionStore`）
+1. 新增项目：`src/Aevatar.CQRS.Projection.Runtime.Abstractions/`
+2. 迁移：
+   - `Stores.Abstractions/Abstractions/Core/*` -> `Runtime.Abstractions/Abstractions/Core/*`
+   - `Stores.Abstractions/Abstractions/Selection/*` -> `Runtime.Abstractions/Abstractions/Selection/*`
+   - `Stores.Abstractions` 中 provider factory/selector/options/capabilities 相关抽象 -> `Runtime.Abstractions`
+3. 删除：
+   - `Stores.Abstractions/Abstractions/ReadModels/IGraphProjectionStore.cs`
+   - `Runtime.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs`
 
-删除：
+## 5. 验证状态
 
-1. `Stores/InMemoryProjectionReadModelStore.cs`
-2. `Stores/InMemoryProjectionRelationStore.cs`
+1. `dotnet build aevatar.slnx --nologo`：通过。
 
-## 7.4 `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
+## 6. 后续可选收敛（非兼容）
 
-新增：
-
-1. `Stores/ElasticsearchDocumentProjectionStore.cs`
-2. `Stores/ElasticsearchIndexMetadataBootstrapper.cs`
-
-修改：
-
-1. `DependencyInjection/ServiceCollectionExtensions.cs`（仅注册 document provider）
-
-删除：
-
-1. `Stores/ElasticsearchProjectionRelationStore.cs`
-2. `Stores/ElasticsearchProjectionReadModelStore.cs`
-
-## 7.5 `src/Aevatar.CQRS.Projection.Providers.Neo4j`
-
-新增：
-
-1. `Stores/Neo4jGraphProjectionStore.cs`
-2. `Stores/Neo4jGraphDiffWriter.cs`
-
-修改：
-
-1. `DependencyInjection/ServiceCollectionExtensions.cs`（默认注册 graph provider）
-
-删除：
-
-1. `Stores/Neo4jProjectionRelationStore.cs`
-2. `Stores/Neo4jProjectionReadModelStore.cs`（若不保留图库文档能力）
-
-## 7.6 `src/workflow/Aevatar.Workflow.Projection`
-
-新增：
-
-1. `Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs`
-2. `Orchestration/WorkflowProjectionQueryFacade.cs`
-
-修改：
-
-1. `ReadModels/WorkflowExecutionReadModel.cs`（实现 `IDocumentReadModel` + `IGraphReadModel`）
-2. `Projectors/WorkflowExecutionReadModelProjector.cs`（完成 reduce 后只调用 materialization router）
-3. `DependencyInjection/ServiceCollectionExtensions.cs`（移除 relation projector 注册，注册 metadata provider）
-4. `Orchestration/WorkflowProjectionQueryReader.cs`（调用 facade，支持 graph-enriched）
-5. `Orchestration/WorkflowProjectionReadModelUpdater.cs`（统一 clock 与 materialization）
-
-删除：
-
-1. `Projectors/WorkflowExecutionRelationProjector.cs`
-2. `ReadModels/WorkflowExecutionRelationConstants.cs`（关系常量下沉到 graph descriptor）
-
-## 7.7 `src/workflow/Aevatar.Workflow.Application.Abstractions`
-
-修改：
-
-1. `Projections/IWorkflowExecutionProjectionQueryPort.cs`（新增 graph-enriched 查询方法）
-2. `Queries/WorkflowExecutionQueryModels.cs`（新增 graph-enriched DTO）
-
-## 7.8 `src/workflow/Aevatar.Workflow.Application`
-
-修改：
-
-1. `Queries/WorkflowExecutionQueryApplicationService.cs`（统一走新 query port/facade）
-
-## 7.9 `src/workflow/Aevatar.Workflow.Infrastructure`
-
-修改：
-
-1. `CapabilityApi/ChatQueryEndpoints.cs`（新增 `/actors/{actorId}/graph-enriched`）
-2. `DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs`（去掉 relation 分支显式依赖）
-
-## 7.10 `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting`
-
-修改：
-
-1. `WorkflowProjectionProviderServiceCollectionExtensions.cs`
-   1. 删除 `Projection:ReadModel:Bindings` 路径。
-   2. 新增 `Projection:Document:Provider` 与 `Projection:Graph:Provider`。
-   3. provider 注册改为 capability 对应注册。
-
-## 7.11 测试项目
-
-修改：
-
-1. `test/Aevatar.CQRS.Projection.Core.Tests`
-   1. 删除 binding resolver 相关测试。
-   2. 新增 metadata provider、capability router、dual-write 路径测试。
-2. `test/Aevatar.Workflow.Host.Api.Tests`
-   1. 删除 `WorkflowExecutionRelationProjectorTests.cs`。
-   2. 新增 graph-enriched 查询与统一 projector 行为测试。
-
-## 7.12 CI / Guard
-
-修改：
-
-1. `tools/ci/architecture_guards.sh`
-   1. 新增禁用 `Bindings[` / `Type.FullName` 路由规则。
-   2. 新增 `IReadModelDocumentMetadataProvider<TReadModel>` 唯一注册守卫。
-2. `tools/ci/projection_route_mapping_guard.sh`
-   1. 保留 TypeUrl 精确路由守卫。
-3. `tools/ci/projection_provider_e2e_smoke.sh`
-   1. 增加 dual-write（ES + Neo4j）完整执行断言。
-
-## 8. 实施阶段（可执行方式）
-
-### Phase 0：基线冻结（0.5 天）
-
-1. 执行并留档：
-   1. `bash tools/ci/architecture_guards.sh`
-   2. `bash tools/ci/projection_route_mapping_guard.sh`
-   3. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
-   4. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
-2. 输出 ADR：确认无兼容策略与删除清单。
-
-### Phase 1：抽象改造（2 天）
-
-1. 先改 `Stores.Abstractions` 新接口与 metadata provider 泛型。
-2. 删 binding 抽象与引用。
-3. 修复编译并补最小单测。
-
-### Phase 2：Runtime + Provider（3 天）
-
-1. 落地 capability inspector/router/metadata resolver。
-2. InMemory/ES/Neo4j provider 按 doc/graph 重建。
-3. 补 dual-write 失败上报与重试策略测试。
-
-### Phase 3：Workflow Projection 主链收敛（3 天）
-
-1. `WorkflowExecutionReport` 实现双能力。
-2. 删除 relation projector，统一写入 router。
-3. QueryReader 改为统一 facade/port。
-
-### Phase 4：Application + API（2 天）
-
-1. 应用查询服务与 endpoint 全部接新 query port。
-2. 新增 graph-enriched endpoint。
-3. 删除 endpoint 手工二次拼装逻辑。
-
-### Phase 5：门禁与文档收口（1.5 天）
-
-1. 更新 CI 守卫与 E2E。
-2. 删除遗留文档、遗留配置示例、遗留测试。
-3. 重新执行全量验证命令。
-
-## 9. 验证命令（阶段完成即跑）
-
-1. `dotnet restore aevatar.slnx --nologo`
-2. `dotnet build aevatar.slnx --nologo`
-3. `dotnet test aevatar.slnx --nologo`
-4. `bash tools/ci/architecture_guards.sh`
-5. `bash tools/ci/projection_route_mapping_guard.sh`
-6. `bash tools/ci/solution_split_guards.sh`
-7. `bash tools/ci/solution_split_test_guards.sh`
-8. `bash tools/ci/test_stability_guards.sh`
-
-## 10. 验收标准（DoD）
-
-1. 新增 readmodel 时不再需要 `Bindings` 配置。
-2. `TReadModel` 的索引 metadata 必须由 `IReadModelDocumentMetadataProvider<TReadModel>` 提供且可被 runtime 解析。
-3. 同一事件输入可稳定触发 doc/graph 双写（按能力接口自动路由）。
-4. 图查询调用方不再手写两跳逻辑。
-5. 全量门禁、构建、测试通过。
-
-## 11. 不做项（明确删除）
-
-1. 不保留旧 `Projection:ReadModel:Bindings` 配置。
-2. 不保留旧 relation projector 与新 router 并存。
-3. 不保留 compatibility adapter 或 feature flag 回退。
-
-## 12. 阶段执行图
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart TB
-    P0["Phase 0 基线冻结"] --> P1["Phase 1 抽象改造"]
-    P1 --> P2["Phase 2 Runtime + Provider"]
-    P2 --> P3["Phase 3 Workflow Projection 收敛"]
-    P3 --> P4["Phase 4 Application + API"]
-    P4 --> P5["Phase 5 门禁与文档收口"]
-    P5 --> DONE["Build/Test/Guards 全绿"]
-```
+1. 进一步收敛 `Core.Abstractions`：评估将 `IProjectionDispatcher/IProjectionCoordinator/IProjectionSubscriptionRegistry` 由对外契约下沉为实现细节。
+2. 在 `architecture_guards.sh` 增补硬约束：
+   - 禁止 `Stores.Abstractions` 回流 `Selection/*` 契约。
+   - 禁止 `IGraphProjectionStore<` 回流。
+3. 文档全仓术语收敛：`Runtime.Abstractions` 引用补齐（README/架构图/审计文档）。
diff --git a/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md
index 1d33d9d25..c80c2ce36 100644
--- a/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md
+++ b/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md
@@ -13,7 +13,7 @@
 |---|---|---|
 | 架构门禁（含 route mapping） | `bash tools/ci/architecture_guards.sh` | 通过（`Architecture guards passed.`） |
 | 路由映射专项 | `bash tools/ci/projection_route_mapping_guard.sh` | 通过（`Projection route-mapping guard passed.`） |
-| Projection Core 定向测试 | `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo --filter "FullyQualifiedName~ProjectionReadModelRuntimeTests\|FullyQualifiedName~ProjectionReadModelStoreSelectorTests\|FullyQualifiedName~ProjectionProviderE2EIntegrationTests" -m:1 -p:UseSharedCompilation=false` | 通过（`10 passed / 0 failed / 2 skipped`） |
+| Projection Core 定向测试 | `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo --filter "FullyQualifiedName~ProjectionReadModelRuntimeTests\|FullyQualifiedName~ProjectionDocumentStoreSelectorTests\|FullyQualifiedName~ProjectionProviderE2EIntegrationTests" -m:1 -p:UseSharedCompilation=false` | 通过（`10 passed / 0 failed / 2 skipped`） |
 | Workflow Projection 定向测试 | `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo --filter "FullyQualifiedName~WorkflowExecutionProjectionRegistrationTests\|FullyQualifiedName~WorkflowExecutionReadModelProjectorTests\|FullyQualifiedName~WorkflowProjectionOrchestrationComponentTests" -m:1 -p:UseSharedCompilation=false` | 通过（`36 passed / 0 failed / 0 skipped`） |
 
 ## 3. 总分与等级
@@ -64,9 +64,9 @@
 
 ## 5. 正向证据（加分项）
 
-1. 统一选择权威入口：Runtime selector 复用抽象层权威 `ProjectionReadModelStoreSelector.Select(...)`。  
+1. 统一选择权威入口：Runtime selector 复用抽象层权威 `ProjectionDocumentStoreSelector.Select(...)`。  
    `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs:32`  
-   `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs:5`
+   `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionDocumentStoreSelector.cs:5`
 2. ReadModel/Relation 统一规划：单一 `ProjectionStoreSelectionPlanner` 产出双存储 selection plan。  
    `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs:12`  
    `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs:155`
@@ -179,23 +179,23 @@ flowchart LR
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart TB
-    O1["ProjectionReadModelRuntimeOptions"] --> P1["ProjectionStoreSelectionPlanner.Build"]
-    P1 --> P2["ReadModelSelectionOptions"]
+    O1["ProjectionStoreRuntimeOptions"] --> P1["ProjectionStoreSelectionPlanner.Build"]
+    P1 --> P2["DocumentSelectionOptions"]
     P1 --> P3["RelationSelectionOptions"]
     O2["ReadModel Bindings(Type.FullName -> IndexKind)"] --> B1["ProjectionReadModelBindingResolver.Resolve"] --> P1
 
     P2 --> F1["ProjectionReadModelStoreFactory.Create"]
     F1 --> G1["ProviderRegistry.GetRegistrations"]
     G1 --> S1["ProjectionReadModelProviderSelector.Select"]
-    S1 --> X1["ProjectionReadModelStoreSelector.Select(Authority)"]
-    X1 --> C1["ProjectionReadModelCapabilityValidator.EnsureSupported"]
+    S1 --> X1["ProjectionDocumentStoreSelector.Select(Authority)"]
+    X1 --> C1["ProjectionProviderCapabilityValidator.EnsureSupported"]
     C1 --> RM["IProjectionReadModelStore"]
 
     P3 --> F2["ProjectionRelationStoreFactory.Create"]
     F2 --> G2["RelationProviderRegistry.GetRegistrations"]
     G2 --> S2["ProjectionRelationStoreProviderSelector.Select"]
     S2 --> X2["ProjectionStoreSelector.Select(Authority)"]
-    X2 --> C2["ProjectionReadModelCapabilityValidator.EnsureSupported"]
+    X2 --> C2["ProjectionProviderCapabilityValidator.EnsureSupported"]
     C2 --> RS["IProjectionRelationStore"]
 
     RM --> V1["WorkflowExecutionReadModelProjector"]
diff --git a/src/Aevatar.CQRS.Projection.Core.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Core.Abstractions/README.md
index 212c8b873..ac3f1dbdc 100644
--- a/src/Aevatar.CQRS.Projection.Core.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Core.Abstractions/README.md
@@ -1,6 +1,6 @@
 # Aevatar.CQRS.Projection.Core.Abstractions
 
-`Aevatar.CQRS.Projection.Core.Abstractions` 只包含投影运行时主链路的通用抽象，不包含任何 ReadModel/Relation provider 选择与存储能力。
+`Aevatar.CQRS.Projection.Core.Abstractions` 只包含投影运行时主链路的通用抽象，不包含任何 ReadModel/Graph provider 选择与存储能力。
 
 ## 目录结构
 
diff --git a/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionQueryPortServiceBase.cs b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionQueryPortServiceBase.cs
index 73506a514..b29f563e4 100644
--- a/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionQueryPortServiceBase.cs
+++ b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionQueryPortServiceBase.cs
@@ -3,7 +3,7 @@ namespace Aevatar.CQRS.Projection.Core.Orchestration;
 /// <summary>
 /// Generic query port base that centralizes query enable-gate behavior.
 /// </summary>
-public abstract class ProjectionQueryPortServiceBase<TSnapshot, TTimelineItem, TRelationItem, TRelationSubgraph>
+public abstract class ProjectionQueryPortServiceBase<TSnapshot, TTimelineItem, TGraphEdgeItem, TGraphSubgraph>
 {
     private readonly Func<bool> _queryEnabledAccessor;
 
@@ -45,7 +45,7 @@ protected async Task<IReadOnlyList<TTimelineItem>> ListTimelineAsync(
         return await ReadTimelineCoreAsync(entityId, take, ct);
     }
 
-    protected async Task<IReadOnlyList<TRelationItem>> GetRelationsAsync(
+    protected async Task<IReadOnlyList<TGraphEdgeItem>> GetGraphEdgesAsync(
         string entityId,
         int take = 200,
         CancellationToken ct = default)
@@ -53,19 +53,19 @@ protected async Task<IReadOnlyList<TRelationItem>> GetRelationsAsync(
         if (!QueryEnabledCore || string.IsNullOrWhiteSpace(entityId))
             return [];
 
-        return await ReadRelationsCoreAsync(entityId, take, ct);
+        return await ReadGraphEdgesCoreAsync(entityId, take, ct);
     }
 
-    protected async Task<TRelationSubgraph> GetRelationSubgraphAsync(
+    protected async Task<TGraphSubgraph> GetGraphSubgraphAsync(
         string entityId,
         int depth = 2,
         int take = 200,
         CancellationToken ct = default)
     {
         if (!QueryEnabledCore || string.IsNullOrWhiteSpace(entityId))
-            return CreateEmptyRelationSubgraph(entityId);
+            return CreateEmptyGraphSubgraph(entityId);
 
-        return await ReadRelationSubgraphCoreAsync(entityId, depth, take, ct);
+        return await ReadGraphSubgraphCoreAsync(entityId, depth, take, ct);
     }
 
     protected abstract Task<TSnapshot?> ReadSnapshotCoreAsync(
@@ -81,16 +81,16 @@ protected abstract Task<IReadOnlyList<TTimelineItem>> ReadTimelineCoreAsync(
         int take,
         CancellationToken ct);
 
-    protected abstract Task<IReadOnlyList<TRelationItem>> ReadRelationsCoreAsync(
+    protected abstract Task<IReadOnlyList<TGraphEdgeItem>> ReadGraphEdgesCoreAsync(
         string entityId,
         int take,
         CancellationToken ct);
 
-    protected abstract Task<TRelationSubgraph> ReadRelationSubgraphCoreAsync(
+    protected abstract Task<TGraphSubgraph> ReadGraphSubgraphCoreAsync(
         string entityId,
         int depth,
         int take,
         CancellationToken ct);
 
-    protected virtual TRelationSubgraph CreateEmptyRelationSubgraph(string entityId) => default!;
+    protected virtual TGraphSubgraph CreateEmptyGraphSubgraph(string entityId) => default!;
 }
diff --git a/src/Aevatar.CQRS.Projection.Core/README.md b/src/Aevatar.CQRS.Projection.Core/README.md
index f4d658e58..84f68f616 100644
--- a/src/Aevatar.CQRS.Projection.Core/README.md
+++ b/src/Aevatar.CQRS.Projection.Core/README.md
@@ -13,7 +13,7 @@
     - `ProjectionSubscriptionRegistry<TContext>`
     - `ProjectionLifecycleService<TContext, TCompletion>`
     - `ProjectionLifecyclePortServiceBase<TLeaseContract, TRuntimeLease, TSink, TEvent>`
-    - `ProjectionQueryPortServiceBase<TSnapshot, TTimelineItem, TRelationItem, TRelationSubgraph>`
+    - `ProjectionQueryPortServiceBase<TSnapshot, TTimelineItem, TGraphEdgeItem, TGraphSubgraph>`
     - `ActorStreamSubscriptionHub<TMessage>`
     - `ProjectionAssemblyRegistration`
     - `SystemProjectionClock`
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
index 3d7dc4c00..c99c14581 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj
@@ -7,6 +7,7 @@
     <RootNamespace>Aevatar.CQRS.Projection.Providers.Elasticsearch</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Runtime.Abstractions\Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index bace1df7c..d36bcb12f 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -13,20 +13,20 @@ public static IServiceCollection AddElasticsearchDocumentStoreRegistration<TRead
         Func<IServiceProvider, string> indexScopeFactory,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
-        string providerName = ProjectionReadModelProviderNames.Elasticsearch)
+        string providerName = ProjectionProviderNames.Elasticsearch)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
         ArgumentNullException.ThrowIfNull(indexScopeFactory);
         ArgumentNullException.ThrowIfNull(keySelector);
 
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>(
-            new DelegateProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>(
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
                 providerName,
-                new ProjectionReadModelProviderCapabilities(
+                new ProjectionProviderCapabilities(
                     providerName,
                     supportsIndexing: true,
-                    indexKinds: [ProjectionReadModelIndexKind.Document],
+                    indexKinds: [ProjectionIndexKind.Document],
                     supportsAliases: false,
                     supportsSchemaValidation: false),
                 provider => new ElasticsearchProjectionReadModelStore<TReadModel, TKey>(
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs
index 16f01928e..7844512e6 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/GlobalUsings.cs
@@ -1 +1,2 @@
 global using Aevatar.CQRS.Projection.Stores.Abstractions;
+global using Aevatar.CQRS.Projection.Runtime.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
index 116ddde54..9bdf6a6ad 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
@@ -3,7 +3,7 @@
 通用 Elasticsearch Document ReadModel Provider。
 
 - 不依赖任何业务域 read model。
-- 通过 `IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>` 与上层模块解耦集成。
+- 通过 `IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>` 与上层模块解耦集成。
 - 能力声明：`Document` 索引（不声明 alias/schema validation 能力）。
 - 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
 - `MutateAsync` 基于 `seq_no/primary_term` 执行 OCC（冲突可重试，超限失败）。
@@ -19,6 +19,6 @@
 关键参数：
 
 - `optionsFactory`：绑定 `Projection:Document:Providers:Elasticsearch:*` 配置。
-- `indexScopeFactory`：由 `IReadModelDocumentMetadataProvider<TReadModel>` 派生索引名。
+- `indexScopeFactory`：由 `IProjectionDocumentMetadataProvider<TReadModel>` 派生索引名。
 - `keySelector/keyFormatter`：ReadModel 主键映射。
-- `providerName`：默认 `Elasticsearch`（与 `ProjectionReadModelProviderNames.Elasticsearch` 一致）。
+- `providerName`：默认 `Elasticsearch`（与 `ProjectionProviderNames.Elasticsearch` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
index 0e9424d68..a11526496 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
@@ -9,8 +9,7 @@
 namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
 
 public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
-    : IProjectionReadModelStore<TReadModel, TKey>,
-      IProjectionStoreProviderMetadata,
+    : IDocumentProjectionStore<TReadModel, TKey>,
       IDisposable
     where TReadModel : class
 {
@@ -39,7 +38,7 @@ public ElasticsearchProjectionReadModelStore(
         string indexScope,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
-        string providerName = ProjectionReadModelProviderNames.Elasticsearch,
+        string providerName = ProjectionProviderNames.Elasticsearch,
         ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>? logger = null,
         HttpMessageHandler? httpMessageHandler = null)
     {
@@ -76,7 +75,7 @@ public ElasticsearchProjectionReadModelStore(
         ProviderCapabilities = BuildCapabilities(providerName);
     }
 
-    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+    public ProjectionProviderCapabilities ProviderCapabilities { get; }
 
     public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default) =>
         UpsertCoreAsync(readModel, allowCreateIndex: true, ct);
@@ -544,11 +543,11 @@ private static string TruncatePayload(string payload)
         return payload[..maxLength] + "...(truncated)";
     }
 
-    private static ProjectionReadModelProviderCapabilities BuildCapabilities(string providerName) =>
+    private static ProjectionProviderCapabilities BuildCapabilities(string providerName) =>
         new(
             providerName,
             supportsIndexing: true,
-            indexKinds: [ProjectionReadModelIndexKind.Document],
+            indexKinds: [ProjectionIndexKind.Document],
             supportsAliases: false,
             supportsSchemaValidation: false);
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj b/src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj
index bf038d668..a051f3273 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Aevatar.CQRS.Projection.Providers.InMemory.csproj
@@ -7,6 +7,7 @@
     <RootNamespace>Aevatar.CQRS.Projection.Providers.InMemory</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Runtime.Abstractions\Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index 010155451..ffcc283b5 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -12,20 +12,20 @@ public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel
         Func<TKey, string>? keyFormatter = null,
         Func<TReadModel, object?>? listSortSelector = null,
         int listTakeMax = 200,
-        string providerName = ProjectionReadModelProviderNames.InMemory)
+        string providerName = ProjectionProviderNames.InMemory)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(keySelector);
 
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>(
-            new DelegateProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>(
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
                 providerName,
-                new ProjectionReadModelProviderCapabilities(
+                new ProjectionProviderCapabilities(
                     providerName,
                     supportsIndexing: true,
-                    indexKinds: [ProjectionReadModelIndexKind.Document],
-                    supportsRelations: false,
-                    supportsRelationTraversal: false),
+                    indexKinds: [ProjectionIndexKind.Document],
+                    supportsGraph: false,
+                    supportsGraphTraversal: false),
                 provider => new InMemoryProjectionReadModelStore<TReadModel, TKey>(
                     keySelector,
                     keyFormatter,
@@ -39,18 +39,18 @@ public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel
 
     public static IServiceCollection AddInMemoryGraphStoreRegistration(
         this IServiceCollection services,
-        string providerName = ProjectionReadModelProviderNames.InMemory)
+        string providerName = ProjectionProviderNames.InMemory)
     {
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionRelationStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionRelationStore>(
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
                 providerName,
-                new ProjectionReadModelProviderCapabilities(
+                new ProjectionProviderCapabilities(
                     providerName,
                     supportsIndexing: true,
-                    indexKinds: [ProjectionReadModelIndexKind.Graph],
-                    supportsRelations: true,
-                    supportsRelationTraversal: true),
-                _ => new InMemoryProjectionRelationStore(providerName)));
+                    indexKinds: [ProjectionIndexKind.Graph],
+                    supportsGraph: true,
+                    supportsGraphTraversal: true),
+                _ => new InMemoryProjectionGraphStore(providerName)));
 
         return services;
     }
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs
index 16f01928e..7844512e6 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/GlobalUsings.cs
@@ -1 +1,2 @@
 global using Aevatar.CQRS.Projection.Stores.Abstractions;
+global using Aevatar.CQRS.Projection.Runtime.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
index 8c0cc060b..7b13de9d8 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
@@ -3,7 +3,7 @@
 通用 InMemory Provider（支持 Document/Graph 两类能力）。
 
 - 不依赖业务域模型。
-- 支持按 keySelector 注册任意 `IProjectionReadModelStore<TReadModel, TKey>`（Document）。
+- 支持按 keySelector 注册任意 `IDocumentProjectionStore<TReadModel, TKey>`（Document）。
 - 支持关系图存储注册（Graph）。
 - 默认能力：Document 索引 / Graph 索引（仅用于开发和测试语义）。
 - 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
@@ -20,4 +20,4 @@
 - `keySelector/keyFormatter`：ReadModel 主键映射。
 - `listSortSelector`：`ListAsync` 排序字段（可选）。
 - `listTakeMax`：`ListAsync` 硬上限。
-- `providerName`：默认 `InMemory`（与 `ProjectionReadModelProviderNames.InMemory` 一致）。
+- `providerName`：默认 `InMemory`（与 `ProjectionProviderNames.InMemory` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
similarity index 66%
rename from src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs
rename to src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
index 0d74a6ecd..ff4fd350d 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionRelationStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
@@ -2,36 +2,35 @@
 
 namespace Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 
-public sealed class InMemoryProjectionRelationStore
-    : IProjectionRelationStore,
-      IProjectionStoreProviderMetadata
+public sealed class InMemoryProjectionGraphStore
+    : IProjectionGraphStore
 {
     private readonly object _gate = new();
-    private readonly Dictionary<string, ProjectionRelationNode> _nodes = new(StringComparer.Ordinal);
-    private readonly Dictionary<string, ProjectionRelationEdge> _edges = new(StringComparer.Ordinal);
+    private readonly Dictionary<string, ProjectionGraphNode> _nodes = new(StringComparer.Ordinal);
+    private readonly Dictionary<string, ProjectionGraphEdge> _edges = new(StringComparer.Ordinal);
     private readonly JsonSerializerOptions _jsonOptions = new();
 
-    public InMemoryProjectionRelationStore(
-        string providerName = ProjectionReadModelProviderNames.InMemory)
+    public InMemoryProjectionGraphStore(
+        string providerName = ProjectionProviderNames.InMemory)
     {
-        ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
+        ProviderCapabilities = new ProjectionProviderCapabilities(
             providerName,
             supportsIndexing: true,
-            indexKinds: [ProjectionReadModelIndexKind.Graph],
-            supportsRelations: true,
-            supportsRelationTraversal: true);
+            indexKinds: [ProjectionIndexKind.Graph],
+            supportsGraph: true,
+            supportsGraphTraversal: true);
     }
 
-    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+    public ProjectionProviderCapabilities ProviderCapabilities { get; }
 
-    public Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken ct = default)
+    public Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(node);
         ct.ThrowIfCancellationRequested();
         var scope = NormalizeToken(node.Scope);
         var nodeId = NormalizeToken(node.NodeId);
         if (scope.Length == 0 || nodeId.Length == 0)
-            throw new InvalidOperationException("Relation node requires non-empty scope and nodeId.");
+            throw new InvalidOperationException("Graph node requires non-empty scope and nodeId.");
 
         var key = BuildNodeKey(scope, nodeId);
         var clone = CloneNode(node, scope, nodeId);
@@ -40,7 +39,7 @@ public Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken ct =
         return Task.CompletedTask;
     }
 
-    public Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken ct = default)
+    public Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(edge);
         ct.ThrowIfCancellationRequested();
@@ -48,9 +47,9 @@ public Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken ct =
         var edgeId = NormalizeToken(edge.EdgeId);
         var fromNodeId = NormalizeToken(edge.FromNodeId);
         var toNodeId = NormalizeToken(edge.ToNodeId);
-        var relationType = NormalizeToken(edge.RelationType);
+        var relationType = NormalizeToken(edge.EdgeType);
         if (scope.Length == 0 || edgeId.Length == 0 || fromNodeId.Length == 0 || toNodeId.Length == 0 || relationType.Length == 0)
-            throw new InvalidOperationException("Relation edge requires non-empty scope/edgeId/fromNodeId/toNodeId/relationType.");
+            throw new InvalidOperationException("Graph edge requires non-empty scope/edgeId/fromNodeId/toNodeId/relationType.");
 
         var key = BuildEdgeKey(scope, edgeId);
         var clone = CloneEdge(edge, scope, edgeId, fromNodeId, toNodeId, relationType);
@@ -72,8 +71,8 @@ public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct =
         return Task.CompletedTask;
     }
 
-    public Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
-        ProjectionRelationQuery query,
+    public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
+        ProjectionGraphQuery query,
         CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(query);
@@ -81,16 +80,16 @@ public Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
         var scope = NormalizeToken(query.Scope);
         var rootNodeId = NormalizeToken(query.RootNodeId);
         if (scope.Length == 0 || rootNodeId.Length == 0)
-            return Task.FromResult<IReadOnlyList<ProjectionRelationEdge>>([]);
+            return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>([]);
 
-        var relationTypes = NormalizeRelationTypes(query.RelationTypes);
+        var edgeTypes = NormalizeEdgeTypes(query.EdgeTypes);
         var take = Math.Clamp(query.Take, 1, 5000);
-        List<ProjectionRelationEdge> edges;
+        List<ProjectionGraphEdge> edges;
         lock (_gate)
         {
             edges = _edges.Values
                 .Where(x => string.Equals(x.Scope, scope, StringComparison.Ordinal))
-                .Where(x => relationTypes.Count == 0 || relationTypes.Contains(x.RelationType))
+                .Where(x => edgeTypes.Count == 0 || edgeTypes.Contains(x.EdgeType))
                 .Where(x => MatchesDirection(x, rootNodeId, query.Direction))
                 .OrderByDescending(x => x.UpdatedAt)
                 .Take(take)
@@ -98,11 +97,11 @@ public Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
                 .ToList();
         }
 
-        return Task.FromResult<IReadOnlyList<ProjectionRelationEdge>>(edges);
+        return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>(edges);
     }
 
-    public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
-        ProjectionRelationQuery query,
+    public Task<ProjectionGraphSubgraph> GetSubgraphAsync(
+        ProjectionGraphQuery query,
         CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(query);
@@ -110,15 +109,15 @@ public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
         var scope = NormalizeToken(query.Scope);
         var rootNodeId = NormalizeToken(query.RootNodeId);
         if (scope.Length == 0 || rootNodeId.Length == 0)
-            return Task.FromResult(new ProjectionRelationSubgraph());
+            return Task.FromResult(new ProjectionGraphSubgraph());
 
-        var relationTypes = NormalizeRelationTypes(query.RelationTypes);
+        var edgeTypes = NormalizeEdgeTypes(query.EdgeTypes);
         var depth = Math.Clamp(query.Depth, 1, 8);
         var take = Math.Clamp(query.Take, 1, 5000);
 
         var visitedNodeIds = new HashSet<string>(StringComparer.Ordinal) { rootNodeId };
         var frontier = new HashSet<string>(StringComparer.Ordinal) { rootNodeId };
-        var collectedEdges = new Dictionary<string, ProjectionRelationEdge>(StringComparer.Ordinal);
+        var collectedEdges = new Dictionary<string, ProjectionGraphEdge>(StringComparer.Ordinal);
 
         for (var currentDepth = 0; currentDepth < depth; currentDepth++)
         {
@@ -129,12 +128,12 @@ public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
             foreach (var nodeId in frontier)
             {
                 ct.ThrowIfCancellationRequested();
-                IReadOnlyList<ProjectionRelationEdge> neighbors;
+                IReadOnlyList<ProjectionGraphEdge> neighbors;
                 lock (_gate)
                 {
                     neighbors = _edges.Values
                         .Where(x => string.Equals(x.Scope, scope, StringComparison.Ordinal))
-                        .Where(x => relationTypes.Count == 0 || relationTypes.Contains(x.RelationType))
+                        .Where(x => edgeTypes.Count == 0 || edgeTypes.Contains(x.EdgeType))
                         .Where(x => MatchesDirection(x, nodeId, query.Direction))
                         .OrderByDescending(x => x.UpdatedAt)
                         .ToList();
@@ -160,7 +159,7 @@ public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
             frontier = nextFrontier;
         }
 
-        List<ProjectionRelationNode> nodes;
+        List<ProjectionGraphNode> nodes;
         lock (_gate)
         {
             nodes = visitedNodeIds
@@ -170,7 +169,7 @@ public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
                     if (_nodes.TryGetValue(key, out var existing))
                         return CloneNode(existing);
 
-                    return new ProjectionRelationNode
+                    return new ProjectionGraphNode
                     {
                         Scope = scope,
                         NodeId = x,
@@ -182,7 +181,7 @@ public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
                 .ToList();
         }
 
-        var graph = new ProjectionRelationSubgraph
+        var graph = new ProjectionGraphSubgraph
         {
             Nodes = nodes,
             Edges = collectedEdges.Values.ToList(),
@@ -191,20 +190,20 @@ public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
     }
 
     private bool MatchesDirection(
-        ProjectionRelationEdge edge,
+        ProjectionGraphEdge edge,
         string rootNodeId,
-        ProjectionRelationDirection direction)
+        ProjectionGraphDirection direction)
     {
         return direction switch
         {
-            ProjectionRelationDirection.Outbound => string.Equals(edge.FromNodeId, rootNodeId, StringComparison.Ordinal),
-            ProjectionRelationDirection.Inbound => string.Equals(edge.ToNodeId, rootNodeId, StringComparison.Ordinal),
+            ProjectionGraphDirection.Outbound => string.Equals(edge.FromNodeId, rootNodeId, StringComparison.Ordinal),
+            ProjectionGraphDirection.Inbound => string.Equals(edge.ToNodeId, rootNodeId, StringComparison.Ordinal),
             _ => string.Equals(edge.FromNodeId, rootNodeId, StringComparison.Ordinal) ||
                  string.Equals(edge.ToNodeId, rootNodeId, StringComparison.Ordinal),
         };
     }
 
-    private static string ResolveCounterpartNodeId(ProjectionRelationEdge edge, string nodeId)
+    private static string ResolveCounterpartNodeId(ProjectionGraphEdge edge, string nodeId)
     {
         if (string.Equals(edge.FromNodeId, nodeId, StringComparison.Ordinal))
             return edge.ToNodeId;
@@ -213,9 +212,9 @@ private static string ResolveCounterpartNodeId(ProjectionRelationEdge edge, stri
         return "";
     }
 
-    private static HashSet<string> NormalizeRelationTypes(IReadOnlyList<string> relationTypes)
+    private static HashSet<string> NormalizeEdgeTypes(IReadOnlyList<string> edgeTypes)
     {
-        return relationTypes
+        return edgeTypes
             .Select(NormalizeToken)
             .Where(x => x.Length > 0)
             .ToHashSet(StringComparer.Ordinal);
@@ -225,24 +224,24 @@ private static HashSet<string> NormalizeRelationTypes(IReadOnlyList<string> rela
 
     private string BuildEdgeKey(string scope, string edgeId) => $"{scope}:{edgeId}";
 
-    private ProjectionRelationNode CloneNode(ProjectionRelationNode source) =>
+    private ProjectionGraphNode CloneNode(ProjectionGraphNode source) =>
         CloneNode(source, source.Scope, source.NodeId);
 
-    private ProjectionRelationNode CloneNode(ProjectionRelationNode source, string scope, string nodeId)
+    private ProjectionGraphNode CloneNode(ProjectionGraphNode source, string scope, string nodeId)
     {
         var payload = JsonSerializer.Serialize(source, _jsonOptions);
-        var clone = JsonSerializer.Deserialize<ProjectionRelationNode>(payload, _jsonOptions)
-            ?? throw new InvalidOperationException("Failed to clone relation node.");
+        var clone = JsonSerializer.Deserialize<ProjectionGraphNode>(payload, _jsonOptions)
+            ?? throw new InvalidOperationException("Failed to clone graph node.");
         clone.Scope = scope;
         clone.NodeId = nodeId;
         return clone;
     }
 
-    private ProjectionRelationEdge CloneEdge(ProjectionRelationEdge source) =>
-        CloneEdge(source, source.Scope, source.EdgeId, source.FromNodeId, source.ToNodeId, source.RelationType);
+    private ProjectionGraphEdge CloneEdge(ProjectionGraphEdge source) =>
+        CloneEdge(source, source.Scope, source.EdgeId, source.FromNodeId, source.ToNodeId, source.EdgeType);
 
-    private ProjectionRelationEdge CloneEdge(
-        ProjectionRelationEdge source,
+    private ProjectionGraphEdge CloneEdge(
+        ProjectionGraphEdge source,
         string scope,
         string edgeId,
         string fromNodeId,
@@ -250,13 +249,13 @@ private ProjectionRelationEdge CloneEdge(
         string relationType)
     {
         var payload = JsonSerializer.Serialize(source, _jsonOptions);
-        var clone = JsonSerializer.Deserialize<ProjectionRelationEdge>(payload, _jsonOptions)
-            ?? throw new InvalidOperationException("Failed to clone relation edge.");
+        var clone = JsonSerializer.Deserialize<ProjectionGraphEdge>(payload, _jsonOptions)
+            ?? throw new InvalidOperationException("Failed to clone graph edge.");
         clone.Scope = scope;
         clone.EdgeId = edgeId;
         clone.FromNodeId = fromNodeId;
         clone.ToNodeId = toNodeId;
-        clone.RelationType = relationType;
+        clone.EdgeType = relationType;
         return clone;
     }
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
index c56ae7e65..6582bf42b 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
@@ -5,8 +5,7 @@
 namespace Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 
 public sealed class InMemoryProjectionReadModelStore<TReadModel, TKey>
-    : IProjectionReadModelStore<TReadModel, TKey>,
-      IProjectionStoreProviderMetadata
+    : IDocumentProjectionStore<TReadModel, TKey>
     where TReadModel : class
 {
     private readonly object _gate = new();
@@ -23,7 +22,7 @@ public InMemoryProjectionReadModelStore(
         Func<TKey, string>? keyFormatter = null,
         Func<TReadModel, object?>? listSortSelector = null,
         int listTakeMax = 200,
-        string providerName = ProjectionReadModelProviderNames.InMemory,
+        string providerName = ProjectionProviderNames.InMemory,
         ILogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>? logger = null)
     {
         ArgumentNullException.ThrowIfNull(keySelector);
@@ -32,15 +31,15 @@ public InMemoryProjectionReadModelStore(
         _listSortSelector = listSortSelector;
         _listTakeMax = listTakeMax > 0 ? listTakeMax : 200;
         _logger = logger ?? NullLogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>.Instance;
-        ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
+        ProviderCapabilities = new ProjectionProviderCapabilities(
             providerName,
             supportsIndexing: true,
-            indexKinds: [ProjectionReadModelIndexKind.Document],
-            supportsRelations: false,
-            supportsRelationTraversal: false);
+            indexKinds: [ProjectionIndexKind.Document],
+            supportsGraph: false,
+            supportsGraphTraversal: false);
     }
 
-    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+    public ProjectionProviderCapabilities ProviderCapabilities { get; }
 
     public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
     {
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj
index b8fbdceef..9da53b567 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Aevatar.CQRS.Projection.Providers.Neo4j.csproj
@@ -7,6 +7,7 @@
     <RootNamespace>Aevatar.CQRS.Projection.Providers.Neo4j</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Runtime.Abstractions\Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionRelationStoreOptions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionGraphStoreOptions.cs
similarity index 80%
rename from src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionRelationStoreOptions.cs
rename to src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionGraphStoreOptions.cs
index 2e40e40a9..be08ab712 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionRelationStoreOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionGraphStoreOptions.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
 
-public sealed class Neo4jProjectionRelationStoreOptions
+public sealed class Neo4jProjectionGraphStoreOptions
 {
     public string Uri { get; set; } = "bolt://localhost:7687";
 
@@ -14,7 +14,7 @@ public sealed class Neo4jProjectionRelationStoreOptions
 
     public bool AutoCreateConstraints { get; set; } = true;
 
-    public string NodeLabel { get; set; } = "ProjectionRelationNode";
+    public string NodeLabel { get; set; } = "ProjectionGraphNode";
 
     public string EdgeType { get; set; } = "PROJECTION_REL";
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index afe9de1bf..83de8cf34 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -13,24 +13,24 @@ public static IServiceCollection AddNeo4jDocumentStoreRegistration<TReadModel, T
         Func<IServiceProvider, string> scopeFactory,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
-        string providerName = ProjectionReadModelProviderNames.Neo4j)
+        string providerName = ProjectionProviderNames.Neo4j)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
         ArgumentNullException.ThrowIfNull(scopeFactory);
         ArgumentNullException.ThrowIfNull(keySelector);
 
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>(
-            new DelegateProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>(
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
                 providerName,
-                new ProjectionReadModelProviderCapabilities(
+                new ProjectionProviderCapabilities(
                     providerName,
                     supportsIndexing: true,
-                    indexKinds: [ProjectionReadModelIndexKind.Graph],
+                    indexKinds: [ProjectionIndexKind.Graph],
                     supportsAliases: false,
                     supportsSchemaValidation: true,
-                    supportsRelations: true,
-                    supportsRelationTraversal: true),
+                    supportsGraph: true,
+                    supportsGraphTraversal: true),
                 provider => new Neo4jProjectionReadModelStore<TReadModel, TKey>(
                     optionsFactory(provider),
                     scopeFactory(provider),
@@ -44,29 +44,29 @@ public static IServiceCollection AddNeo4jDocumentStoreRegistration<TReadModel, T
 
     public static IServiceCollection AddNeo4jGraphStoreRegistration(
         this IServiceCollection services,
-        Func<IServiceProvider, Neo4jProjectionRelationStoreOptions> optionsFactory,
+        Func<IServiceProvider, Neo4jProjectionGraphStoreOptions> optionsFactory,
         Func<IServiceProvider, string> scopeFactory,
-        string providerName = ProjectionReadModelProviderNames.Neo4j)
+        string providerName = ProjectionProviderNames.Neo4j)
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
         ArgumentNullException.ThrowIfNull(scopeFactory);
 
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionRelationStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionRelationStore>(
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
                 providerName,
-                new ProjectionReadModelProviderCapabilities(
+                new ProjectionProviderCapabilities(
                     providerName,
                     supportsIndexing: true,
-                    indexKinds: [ProjectionReadModelIndexKind.Graph],
+                    indexKinds: [ProjectionIndexKind.Graph],
                     supportsAliases: false,
                     supportsSchemaValidation: true,
-                    supportsRelations: true,
-                    supportsRelationTraversal: true),
-                provider => new Neo4jProjectionRelationStore(
+                    supportsGraph: true,
+                    supportsGraphTraversal: true),
+                provider => new Neo4jProjectionGraphStore(
                     optionsFactory(provider),
                     scopeFactory(provider),
                     providerName,
-                    provider.GetService<ILogger<Neo4jProjectionRelationStore>>())));
+                    provider.GetService<ILogger<Neo4jProjectionGraphStore>>())));
 
         return services;
     }
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs
index 16f01928e..7844512e6 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/GlobalUsings.cs
@@ -1 +1,2 @@
 global using Aevatar.CQRS.Projection.Stores.Abstractions;
+global using Aevatar.CQRS.Projection.Runtime.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
index d07738149..ae4cc8f2b 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
@@ -3,8 +3,8 @@
 通用 Neo4j Provider（支持 Document/Graph 两类能力）。
 
 - 不依赖任何业务域 read model。
-- 通过 `IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>` 与上层模块解耦集成（Document）。
-- 通过 `IProjectionStoreRegistration<IProjectionRelationStore>` 与上层模块解耦集成（Graph）。
+- 通过 `IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>` 与上层模块解耦集成（Document）。
+- 通过 `IProjectionStoreRegistration<IProjectionGraphStore>` 与上层模块解耦集成（Graph）。
 - 能力声明：`Document/Graph` 索引、schema validation。
 - 基于官方 `Neo4j.Driver` 实现连接与会话管理。
 - 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
@@ -21,4 +21,4 @@
 - `optionsFactory`：绑定 `Projection:Document:Providers:Neo4j:*` 或 `Projection:Graph:Providers:Neo4j:*` 配置。
 - `scopeFactory`：文档 scope 或 graph scope 提供器。
 - `keySelector/keyFormatter`：ReadModel 主键映射。
-- `providerName`：默认 `Neo4j`（与 `ProjectionReadModelProviderNames.Neo4j` 一致）。
+- `providerName`：默认 `Neo4j`（与 `ProjectionProviderNames.Neo4j` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
similarity index 85%
rename from src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionRelationStore.cs
rename to src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
index 22712939e..f5b5e811a 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionRelationStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
@@ -6,9 +6,8 @@
 
 namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
 
-public sealed class Neo4jProjectionRelationStore
-    : IProjectionRelationStore,
-      IProjectionStoreProviderMetadata,
+public sealed class Neo4jProjectionGraphStore
+    : IProjectionGraphStore,
       IAsyncDisposable
 {
     private readonly IDriver _driver;
@@ -18,7 +17,7 @@ public sealed class Neo4jProjectionRelationStore
     private readonly string _edgeType;
     private readonly bool _autoCreateConstraints;
     private readonly int _maxTraversalDepth;
-    private readonly ILogger<Neo4jProjectionRelationStore> _logger;
+    private readonly ILogger<Neo4jProjectionGraphStore> _logger;
     private readonly SemaphoreSlim _schemaLock = new(1, 1);
     private readonly JsonSerializerOptions _jsonOptions = new()
     {
@@ -26,22 +25,22 @@ public sealed class Neo4jProjectionRelationStore
     };
     private bool _schemaInitialized;
 
-    public Neo4jProjectionRelationStore(
-        Neo4jProjectionRelationStoreOptions options,
+    public Neo4jProjectionGraphStore(
+        Neo4jProjectionGraphStoreOptions options,
         string scope,
-        string providerName = ProjectionReadModelProviderNames.Neo4j,
-        ILogger<Neo4jProjectionRelationStore>? logger = null)
+        string providerName = ProjectionProviderNames.Neo4j,
+        ILogger<Neo4jProjectionGraphStore>? logger = null)
     {
         ArgumentNullException.ThrowIfNull(options);
         ArgumentException.ThrowIfNullOrWhiteSpace(scope);
 
         _scope = scope.Trim();
         _database = options.Database?.Trim() ?? "";
-        _nodeLabel = NormalizeLabel(options.NodeLabel, "ProjectionRelationNode");
+        _nodeLabel = NormalizeLabel(options.NodeLabel, "ProjectionGraphNode");
         _edgeType = NormalizeLabel(options.EdgeType, "PROJECTION_REL");
         _autoCreateConstraints = options.AutoCreateConstraints;
         _maxTraversalDepth = Math.Clamp(options.MaxTraversalDepth, 1, 8);
-        _logger = logger ?? NullLogger<Neo4jProjectionRelationStore>.Instance;
+        _logger = logger ?? NullLogger<Neo4jProjectionGraphStore>.Instance;
 
         var auth = string.IsNullOrWhiteSpace(options.Username)
             ? AuthTokens.None
@@ -49,19 +48,19 @@ public Neo4jProjectionRelationStore(
         _driver = GraphDatabase.Driver(options.Uri, auth, config =>
             config.WithConnectionTimeout(TimeSpan.FromMilliseconds(Math.Max(1000, options.RequestTimeoutMs))));
 
-        ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
+        ProviderCapabilities = new ProjectionProviderCapabilities(
             providerName,
             supportsIndexing: true,
-            indexKinds: [ProjectionReadModelIndexKind.Graph],
+            indexKinds: [ProjectionIndexKind.Graph],
             supportsAliases: false,
             supportsSchemaValidation: true,
-            supportsRelations: true,
-            supportsRelationTraversal: true);
+            supportsGraph: true,
+            supportsGraphTraversal: true);
     }
 
-    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+    public ProjectionProviderCapabilities ProviderCapabilities { get; }
 
-    public async Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken ct = default)
+    public async Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(node);
         ct.ThrowIfCancellationRequested();
@@ -69,7 +68,7 @@ public async Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken
         var scope = NormalizeToken(node.Scope);
         var nodeId = NormalizeToken(node.NodeId);
         if (scope.Length == 0 || nodeId.Length == 0)
-            throw new InvalidOperationException("Relation node requires non-empty scope and nodeId.");
+            throw new InvalidOperationException("Graph node requires non-empty scope and nodeId.");
 
         var nodeType = NormalizeToken(node.NodeType);
         if (nodeType.Length == 0)
@@ -91,7 +90,7 @@ public async Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken
         await ExecuteWriteAsync(cypher, parameters, ct);
     }
 
-    public async Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken ct = default)
+    public async Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(edge);
         ct.ThrowIfCancellationRequested();
@@ -100,10 +99,10 @@ public async Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken
         var edgeId = NormalizeToken(edge.EdgeId);
         var fromNodeId = NormalizeToken(edge.FromNodeId);
         var toNodeId = NormalizeToken(edge.ToNodeId);
-        var relationType = NormalizeToken(edge.RelationType);
+        var relationType = NormalizeToken(edge.EdgeType);
         if (scope.Length == 0 || edgeId.Length == 0 || fromNodeId.Length == 0 || toNodeId.Length == 0 || relationType.Length == 0)
         {
-            throw new InvalidOperationException("Relation edge requires non-empty scope/edgeId/fromNodeId/toNodeId/relationType.");
+            throw new InvalidOperationException("Graph edge requires non-empty scope/edgeId/fromNodeId/toNodeId/relationType.");
         }
 
         var updatedAtEpochMs = NormalizeTimestamp(edge.UpdatedAt);
@@ -147,8 +146,8 @@ public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken
         await ExecuteWriteAsync(cypher, parameters, ct);
     }
 
-    public async Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
-        ProjectionRelationQuery query,
+    public async Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
+        ProjectionGraphQuery query,
         CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(query);
@@ -160,18 +159,18 @@ public async Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
 
         await EnsureSchemaAsync(ct);
         var boundedTake = Math.Clamp(query.Take, 1, 5000);
-        var relationTypes = NormalizeRelationTypes(query.RelationTypes);
+        var edgeTypes = NormalizeEdgeTypes(query.EdgeTypes);
         var cypher = BuildNeighborCypher(query.Direction, boundedTake);
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scope,
             ["rootNodeId"] = rootNodeId,
-            ["relationTypes"] = relationTypes,
+            ["edgeTypes"] = edgeTypes,
             ["take"] = boundedTake,
         };
 
         var rows = await ExecuteReadAsync(cypher, parameters, ct);
-        var edges = new List<ProjectionRelationEdge>(rows.Count);
+        var edges = new List<ProjectionGraphEdge>(rows.Count);
         foreach (var row in rows)
         {
             var edge = BuildEdgeFromRow(scope, row);
@@ -182,8 +181,8 @@ public async Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
         return edges;
     }
 
-    public async Task<ProjectionRelationSubgraph> GetSubgraphAsync(
-        ProjectionRelationQuery query,
+    public async Task<ProjectionGraphSubgraph> GetSubgraphAsync(
+        ProjectionGraphQuery query,
         CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(query);
@@ -191,13 +190,13 @@ public async Task<ProjectionRelationSubgraph> GetSubgraphAsync(
         var scope = NormalizeToken(query.Scope);
         var rootNodeId = NormalizeToken(query.RootNodeId);
         if (scope.Length == 0 || rootNodeId.Length == 0)
-            return new ProjectionRelationSubgraph();
+            return new ProjectionGraphSubgraph();
 
         var depth = Math.Clamp(query.Depth, 1, _maxTraversalDepth);
         var take = Math.Clamp(query.Take, 1, 5000);
         var visitedNodeIds = new HashSet<string>(StringComparer.Ordinal) { rootNodeId };
         var frontier = new HashSet<string>(StringComparer.Ordinal) { rootNodeId };
-        var collectedEdges = new Dictionary<string, ProjectionRelationEdge>(StringComparer.Ordinal);
+        var collectedEdges = new Dictionary<string, ProjectionGraphEdge>(StringComparer.Ordinal);
 
         for (var currentDepth = 0; currentDepth < depth; currentDepth++)
         {
@@ -209,12 +208,12 @@ public async Task<ProjectionRelationSubgraph> GetSubgraphAsync(
             {
                 ct.ThrowIfCancellationRequested();
                 var neighbors = await GetNeighborsAsync(
-                    new ProjectionRelationQuery
+                    new ProjectionGraphQuery
                     {
                         Scope = scope,
                         RootNodeId = nodeId,
                         Direction = query.Direction,
-                        RelationTypes = query.RelationTypes,
+                        EdgeTypes = query.EdgeTypes,
                         Depth = 1,
                         Take = take - collectedEdges.Count,
                     },
@@ -243,7 +242,7 @@ public async Task<ProjectionRelationSubgraph> GetSubgraphAsync(
         var nodes = await GetNodesByIdsAsync(scope, visitedNodeIds, ct);
         if (!nodes.Any(x => string.Equals(x.NodeId, rootNodeId, StringComparison.Ordinal)))
         {
-            nodes.Add(new ProjectionRelationNode
+            nodes.Add(new ProjectionGraphNode
             {
                 Scope = scope,
                 NodeId = rootNodeId,
@@ -253,7 +252,7 @@ public async Task<ProjectionRelationSubgraph> GetSubgraphAsync(
             });
         }
 
-        return new ProjectionRelationSubgraph
+        return new ProjectionGraphSubgraph
         {
             Nodes = nodes,
             Edges = collectedEdges.Values.ToList(),
@@ -266,7 +265,7 @@ public async ValueTask DisposeAsync()
         await _driver.DisposeAsync();
     }
 
-    private async Task<List<ProjectionRelationNode>> GetNodesByIdsAsync(
+    private async Task<List<ProjectionGraphNode>> GetNodesByIdsAsync(
         string scope,
         IReadOnlySet<string> nodeIds,
         CancellationToken ct)
@@ -288,7 +287,7 @@ private async Task<List<ProjectionRelationNode>> GetNodesByIdsAsync(
         };
 
         var rows = await ExecuteReadAsync(cypher, parameters, ct);
-        var nodes = new List<ProjectionRelationNode>(rows.Count);
+        var nodes = new List<ProjectionGraphNode>(rows.Count);
         foreach (var row in rows)
         {
             if (!row.TryGetValue("nodeId", out var nodeIdValue))
@@ -310,7 +309,7 @@ private async Task<List<ProjectionRelationNode>> GetNodesByIdsAsync(
                 ? updatedAtEpochMsValue.As<long>()
                 : 0L;
 
-            nodes.Add(new ProjectionRelationNode
+            nodes.Add(new ProjectionGraphNode
             {
                 Scope = scope,
                 NodeId = nodeId,
@@ -323,7 +322,7 @@ private async Task<List<ProjectionRelationNode>> GetNodesByIdsAsync(
         return nodes;
     }
 
-    private ProjectionRelationEdge? BuildEdgeFromRow(string scope, IReadOnlyDictionary<string, object> row)
+    private ProjectionGraphEdge? BuildEdgeFromRow(string scope, IReadOnlyDictionary<string, object> row)
     {
         if (!row.TryGetValue("edgeId", out var edgeIdValue))
             return null;
@@ -350,21 +349,21 @@ private async Task<List<ProjectionRelationNode>> GetNodesByIdsAsync(
             ? updatedAtEpochMsValue.As<long>()
             : 0L;
 
-        return new ProjectionRelationEdge
+        return new ProjectionGraphEdge
         {
             Scope = scope,
             EdgeId = edgeId,
             FromNodeId = fromNodeId,
             ToNodeId = toNodeId,
-            RelationType = relationType,
+            EdgeType = relationType,
             Properties = DeserializeProperties(propertiesJson),
             UpdatedAt = FromUnixTimeMilliseconds(updatedAtEpochMs),
         };
     }
 
-    private string BuildNeighborCypher(ProjectionRelationDirection direction, int take)
+    private string BuildNeighborCypher(ProjectionGraphDirection direction, int take)
     {
-        var filter = "WHERE size($relationTypes) = 0 OR r.relationType IN $relationTypes ";
+        var filter = "WHERE size($edgeTypes) = 0 OR r.relationType IN $edgeTypes ";
         var projection = "RETURN r.edgeId AS edgeId, " +
                          "startNode(r).nodeId AS fromNodeId, " +
                          "endNode(r).nodeId AS toNodeId, " +
@@ -374,11 +373,11 @@ private string BuildNeighborCypher(ProjectionRelationDirection direction, int ta
                          "ORDER BY updatedAtEpochMs DESC LIMIT $take";
         return direction switch
         {
-            ProjectionRelationDirection.Outbound =>
+            ProjectionGraphDirection.Outbound =>
                 $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})-[r:{_edgeType}]->(:{_nodeLabel} {{scope: $scope}}) " +
                 filter +
                 projection,
-            ProjectionRelationDirection.Inbound =>
+            ProjectionGraphDirection.Inbound =>
                 $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})<-[r:{_edgeType}]-(:{_nodeLabel} {{scope: $scope}}) " +
                 filter +
                 projection,
@@ -400,7 +399,7 @@ private async Task EnsureSchemaAsync(CancellationToken ct)
             if (_schemaInitialized)
                 return;
 
-            var nodeConstraintName = NormalizeConstraintName($"projection_relation_node_scope_id_{_nodeLabel}");
+            var nodeConstraintName = NormalizeConstraintName($"projection_graph_node_scope_id_{_nodeLabel}");
             var cypher = $"CREATE CONSTRAINT {nodeConstraintName} IF NOT EXISTS " +
                          $"FOR (n:{_nodeLabel}) REQUIRE (n.scope, n.nodeId) IS UNIQUE";
             await ExecuteWriteAsync(cypher, new Dictionary<string, object?>(), ct);
@@ -446,7 +445,7 @@ private IAsyncSession CreateSession(AccessMode accessMode)
         });
     }
 
-    private static string ResolveCounterpartNodeId(ProjectionRelationEdge edge, string nodeId)
+    private static string ResolveCounterpartNodeId(ProjectionGraphEdge edge, string nodeId)
     {
         if (string.Equals(edge.FromNodeId, nodeId, StringComparison.Ordinal))
             return edge.ToNodeId;
@@ -455,9 +454,9 @@ private static string ResolveCounterpartNodeId(ProjectionRelationEdge edge, stri
         return "";
     }
 
-    private static string[] NormalizeRelationTypes(IReadOnlyList<string> relationTypes)
+    private static string[] NormalizeEdgeTypes(IReadOnlyList<string> edgeTypes)
     {
-        return relationTypes
+        return edgeTypes
             .Select(NormalizeToken)
             .Where(x => x.Length > 0)
             .Distinct(StringComparer.Ordinal)
@@ -486,7 +485,7 @@ private Dictionary<string, string> DeserializeProperties(string payload)
         {
             _logger.LogWarning(
                 ex,
-                "Failed to deserialize relation properties payload. provider={Provider} scope={Scope}",
+                "Failed to deserialize graph edge properties payload. provider={Provider} scope={Scope}",
                 ProviderCapabilities.ProviderName,
                 _scope);
             return new Dictionary<string, string>(StringComparer.Ordinal);
@@ -532,7 +531,7 @@ private static string NormalizeConstraintName(string rawName)
             .ToArray();
         var normalized = new string(chars);
         if (normalized.Length == 0)
-            return "projection_relation_constraint";
+            return "projection_graph_constraint";
         if (char.IsDigit(normalized[0]))
             normalized = $"c_{normalized}";
         return normalized;
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
index 8f68e14d2..439b69c9c 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
@@ -7,8 +7,7 @@
 namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
 
 public sealed class Neo4jProjectionReadModelStore<TReadModel, TKey>
-    : IProjectionReadModelStore<TReadModel, TKey>,
-      IProjectionStoreProviderMetadata,
+    : IDocumentProjectionStore<TReadModel, TKey>,
       IAsyncDisposable
     where TReadModel : class
 {
@@ -33,7 +32,7 @@ public Neo4jProjectionReadModelStore(
         string scope,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
-        string providerName = ProjectionReadModelProviderNames.Neo4j,
+        string providerName = ProjectionProviderNames.Neo4j,
         ILogger<Neo4jProjectionReadModelStore<TReadModel, TKey>>? logger = null)
     {
         ArgumentNullException.ThrowIfNull(options);
@@ -55,17 +54,17 @@ public Neo4jProjectionReadModelStore(
         _driver = GraphDatabase.Driver(options.Uri, auth, config =>
             config.WithConnectionTimeout(TimeSpan.FromMilliseconds(Math.Max(1000, options.RequestTimeoutMs))));
 
-        ProviderCapabilities = new ProjectionReadModelProviderCapabilities(
+        ProviderCapabilities = new ProjectionProviderCapabilities(
             providerName,
             supportsIndexing: true,
-            indexKinds: [ProjectionReadModelIndexKind.Document, ProjectionReadModelIndexKind.Graph],
+            indexKinds: [ProjectionIndexKind.Document, ProjectionIndexKind.Graph],
             supportsAliases: false,
             supportsSchemaValidation: true,
-            supportsRelations: true,
-            supportsRelationTraversal: true);
+            supportsGraph: true,
+            supportsGraphTraversal: true);
     }
 
-    public ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
+    public ProjectionProviderCapabilities ProviderCapabilities { get; }
 
     public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
     {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
similarity index 82%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
index 6a6045656..617dc1e95 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
 public sealed class DelegateProjectionStoreRegistration<TStore> : IProjectionStoreRegistration<TStore>
 {
@@ -6,7 +6,7 @@ public sealed class DelegateProjectionStoreRegistration<TStore> : IProjectionSto
 
     public DelegateProjectionStoreRegistration(
         string providerName,
-        ProjectionReadModelProviderCapabilities capabilities,
+        ProjectionProviderCapabilities capabilities,
         Func<IServiceProvider, TStore> factory)
     {
         if (string.IsNullOrWhiteSpace(providerName))
@@ -21,7 +21,7 @@ public DelegateProjectionStoreRegistration(
 
     public string ProviderName { get; }
 
-    public ProjectionReadModelProviderCapabilities Capabilities { get; }
+    public ProjectionProviderCapabilities Capabilities { get; }
 
     public TStore Create(IServiceProvider serviceProvider)
     {
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
similarity index 65%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
index 3d1048a5e..4ad98a895 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
@@ -1,10 +1,10 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
 public interface IProjectionStoreRegistration
 {
     string ProviderName { get; }
 
-    ProjectionReadModelProviderCapabilities Capabilities { get; }
+    ProjectionProviderCapabilities Capabilities { get; }
 }
 
 public interface IProjectionStoreRegistration<out TStore> : IProjectionStoreRegistration
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
new file mode 100644
index 000000000..7b8b3ea9e
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
@@ -0,0 +1,9 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionGraphStoreFactory
+{
+    IProjectionGraphStore Create(
+        IServiceProvider serviceProvider,
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements);
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderRegistry.cs
new file mode 100644
index 000000000..41f845942
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderRegistry.cs
@@ -0,0 +1,6 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionGraphStoreProviderRegistry
+{
+    IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> GetRegistrations(IServiceProvider serviceProvider);
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs
new file mode 100644
index 000000000..3f92b8aad
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs
@@ -0,0 +1,9 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionGraphStoreProviderSelector
+{
+    IProjectionStoreRegistration<IProjectionGraphStore> Select(
+        IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> registrations,
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements);
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs
similarity index 74%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs
index 60d4af5df..4cc868952 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
 public interface IProjectionDocumentMetadataResolver
 {
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
new file mode 100644
index 000000000..da2936f8e
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
@@ -0,0 +1,10 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionDocumentStoreFactory
+{
+    IDocumentProjectionStore<TReadModel, TKey> Create<TReadModel, TKey>(
+        IServiceProvider serviceProvider,
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements)
+        where TReadModel : class;
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderRegistry.cs
new file mode 100644
index 000000000..a5ebc861a
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderRegistry.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionDocumentStoreProviderRegistry
+{
+    IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> GetRegistrations<TReadModel, TKey>(
+        IServiceProvider serviceProvider)
+        where TReadModel : class;
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs
new file mode 100644
index 000000000..fec9eadf5
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs
@@ -0,0 +1,10 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionDocumentStoreProviderSelector
+{
+    IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> Select<TReadModel, TKey>(
+        IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements)
+        where TReadModel : class;
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionProviderCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionProviderCapabilityValidator.cs
new file mode 100644
index 000000000..c556bab59
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionProviderCapabilityValidator.cs
@@ -0,0 +1,13 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionProviderCapabilityValidator
+{
+    IReadOnlyList<string> Validate(
+        ProjectionStoreRequirements requirements,
+        ProjectionProviderCapabilities capabilities);
+
+    void EnsureSupported(
+        Type readModelType,
+        ProjectionStoreRequirements requirements,
+        ProjectionProviderCapabilities capabilities);
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionDocumentStoreSelector.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionDocumentStoreSelector.cs
new file mode 100644
index 000000000..fe5316146
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionDocumentStoreSelector.cs
@@ -0,0 +1,23 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public static class ProjectionDocumentStoreSelector
+{
+    public static IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> Select<TReadModel, TKey>(
+        IEnumerable<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements,
+        IProjectionProviderCapabilityValidator? capabilityValidator = null)
+        where TReadModel : class
+    {
+        return ProjectionStoreSelector.Select<
+            IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
+            registrations,
+            selectionOptions,
+            requirements,
+            typeof(TReadModel),
+            noRegistrationsReason: "No provider registrations were found.",
+            multipleRegistrationsReason: "Multiple providers are registered but no explicit provider was requested.",
+            providerNotRegisteredReason: "Requested provider is not registered.",
+            capabilityValidator);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionIndexKind.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionIndexKind.cs
new file mode 100644
index 000000000..edc2ef556
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionIndexKind.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public enum ProjectionIndexKind
+{
+    None = 0,
+    Document = 1,
+    Graph = 2,
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderCapabilities.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilities.cs
similarity index 57%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderCapabilities.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilities.cs
index 9f97f6356..b4daaf039 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderCapabilities.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilities.cs
@@ -1,18 +1,18 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
-public sealed class ProjectionReadModelProviderCapabilities
+public sealed class ProjectionProviderCapabilities
 {
-    private static readonly IReadOnlySet<ProjectionReadModelIndexKind> EmptyIndexKinds =
-        new HashSet<ProjectionReadModelIndexKind>();
+    private static readonly IReadOnlySet<ProjectionIndexKind> EmptyIndexKinds =
+        new HashSet<ProjectionIndexKind>();
 
-    public ProjectionReadModelProviderCapabilities(
+    public ProjectionProviderCapabilities(
         string providerName,
         bool supportsIndexing,
-        IEnumerable<ProjectionReadModelIndexKind>? indexKinds = null,
+        IEnumerable<ProjectionIndexKind>? indexKinds = null,
         bool supportsAliases = false,
         bool supportsSchemaValidation = false,
-        bool supportsRelations = false,
-        bool supportsRelationTraversal = false)
+        bool supportsGraph = false,
+        bool supportsGraphTraversal = false)
     {
         if (string.IsNullOrWhiteSpace(providerName))
             throw new ArgumentException("Provider name must not be empty.", nameof(providerName));
@@ -21,11 +21,11 @@ public ProjectionReadModelProviderCapabilities(
         SupportsIndexing = supportsIndexing;
         SupportsAliases = supportsAliases;
         SupportsSchemaValidation = supportsSchemaValidation;
-        SupportsRelations = supportsRelations;
-        SupportsRelationTraversal = supportsRelationTraversal;
+        SupportsGraph = supportsGraph;
+        SupportsGraphTraversal = supportsGraphTraversal;
 
         var normalizedIndexKinds = (indexKinds ?? [])
-            .Where(x => x != ProjectionReadModelIndexKind.None)
+            .Where(x => x != ProjectionIndexKind.None)
             .ToHashSet();
 
         if (!supportsIndexing && normalizedIndexKinds.Count > 0)
@@ -42,13 +42,13 @@ public ProjectionReadModelProviderCapabilities(
 
     public bool SupportsIndexing { get; }
 
-    public IReadOnlySet<ProjectionReadModelIndexKind> IndexKinds { get; }
+    public IReadOnlySet<ProjectionIndexKind> IndexKinds { get; }
 
     public bool SupportsAliases { get; }
 
     public bool SupportsSchemaValidation { get; }
 
-    public bool SupportsRelations { get; }
+    public bool SupportsGraph { get; }
 
-    public bool SupportsRelationTraversal { get; }
+    public bool SupportsGraphTraversal { get; }
 }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidationException.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidationException.cs
similarity index 60%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidationException.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidationException.cs
index ec99e02cf..e26a827e2 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidationException.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidationException.cs
@@ -1,11 +1,11 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
-public sealed class ProjectionReadModelCapabilityValidationException : InvalidOperationException
+public sealed class ProjectionProviderCapabilityValidationException : InvalidOperationException
 {
-    public ProjectionReadModelCapabilityValidationException(
+    public ProjectionProviderCapabilityValidationException(
         Type readModelType,
-        ProjectionReadModelRequirements requirements,
-        ProjectionReadModelProviderCapabilities capabilities,
+        ProjectionStoreRequirements requirements,
+        ProjectionProviderCapabilities capabilities,
         IReadOnlyList<string> violations)
         : base(BuildMessage(readModelType, capabilities.ProviderName, violations))
     {
@@ -17,9 +17,9 @@ public ProjectionReadModelCapabilityValidationException(
 
     public Type ReadModelType { get; }
 
-    public ProjectionReadModelRequirements Requirements { get; }
+    public ProjectionStoreRequirements Requirements { get; }
 
-    public ProjectionReadModelProviderCapabilities Capabilities { get; }
+    public ProjectionProviderCapabilities Capabilities { get; }
 
     public IReadOnlyList<string> Violations { get; }
 
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidator.cs
similarity index 72%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidator.cs
index 92fdb3d3c..f8242c8a9 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelCapabilityValidator.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidator.cs
@@ -1,10 +1,10 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
-public static class ProjectionReadModelCapabilityValidator
+public static class ProjectionProviderCapabilityValidator
 {
     public static IReadOnlyList<string> Validate(
-        ProjectionReadModelRequirements requirements,
-        ProjectionReadModelProviderCapabilities capabilities)
+        ProjectionStoreRequirements requirements,
+        ProjectionProviderCapabilities capabilities)
     {
         ArgumentNullException.ThrowIfNull(requirements);
         ArgumentNullException.ThrowIfNull(capabilities);
@@ -40,26 +40,26 @@ public static IReadOnlyList<string> Validate(
         if (requirements.RequiresSchemaValidation && !capabilities.SupportsSchemaValidation)
             violations.Add("requires schema validation, but provider does not support schema validation");
 
-        if (requirements.RequiresRelations && !capabilities.SupportsRelations)
-            violations.Add("requires relation storage, but provider does not support relations");
+        if (requirements.RequiresGraph && !capabilities.SupportsGraph)
+            violations.Add("requires graph storage, but provider does not support graph storage");
 
-        if (requirements.RequiresRelationTraversal && !capabilities.SupportsRelationTraversal)
-            violations.Add("requires relation traversal, but provider does not support relation traversal");
+        if (requirements.RequiresGraphTraversal && !capabilities.SupportsGraphTraversal)
+            violations.Add("requires graph traversal, but provider does not support graph traversal");
 
         return violations;
     }
 
     public static void EnsureSupported(
         Type readModelType,
-        ProjectionReadModelRequirements requirements,
-        ProjectionReadModelProviderCapabilities capabilities)
+        ProjectionStoreRequirements requirements,
+        ProjectionProviderCapabilities capabilities)
     {
         ArgumentNullException.ThrowIfNull(readModelType);
         var violations = Validate(requirements, capabilities);
         if (violations.Count == 0)
             return;
 
-        throw new ProjectionReadModelCapabilityValidationException(
+        throw new ProjectionProviderCapabilityValidationException(
             readModelType,
             requirements,
             capabilities,
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderNames.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderNames.cs
similarity index 58%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderNames.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderNames.cs
index bee736261..85689dd09 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelProviderNames.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderNames.cs
@@ -1,6 +1,6 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
-public static class ProjectionReadModelProviderNames
+public static class ProjectionProviderNames
 {
     public const string InMemory = "InMemory";
 
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreMode.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreMode.cs
new file mode 100644
index 000000000..6dfacb872
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreMode.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public enum ProjectionStoreMode
+{
+    Custom = 0,
+    Default = 1,
+    StateOnly = 2,
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRequirements.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRequirements.cs
new file mode 100644
index 000000000..57922a2b9
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRequirements.cs
@@ -0,0 +1,42 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public sealed class ProjectionStoreRequirements
+{
+    private static readonly IReadOnlySet<ProjectionIndexKind> EmptyIndexKinds =
+        new HashSet<ProjectionIndexKind>();
+
+    public ProjectionStoreRequirements(
+        bool requiresIndexing = false,
+        IEnumerable<ProjectionIndexKind>? requiredIndexKinds = null,
+        bool requiresAliases = false,
+        bool requiresSchemaValidation = false,
+        bool requiresGraph = false,
+        bool requiresGraphTraversal = false)
+    {
+        RequiresIndexing = requiresIndexing;
+        RequiresAliases = requiresAliases;
+        RequiresSchemaValidation = requiresSchemaValidation;
+        RequiresGraph = requiresGraph;
+        RequiresGraphTraversal = requiresGraphTraversal;
+
+        var normalizedIndexKinds = (requiredIndexKinds ?? [])
+            .Where(x => x != ProjectionIndexKind.None)
+            .ToHashSet();
+
+        RequiredIndexKinds = normalizedIndexKinds.Count == 0
+            ? EmptyIndexKinds
+            : normalizedIndexKinds;
+    }
+
+    public bool RequiresIndexing { get; }
+
+    public IReadOnlySet<ProjectionIndexKind> RequiredIndexKinds { get; }
+
+    public bool RequiresAliases { get; }
+
+    public bool RequiresSchemaValidation { get; }
+
+    public bool RequiresGraph { get; }
+
+    public bool RequiresGraphTraversal { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRuntimeOptions.cs
new file mode 100644
index 000000000..f31f06075
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRuntimeOptions.cs
@@ -0,0 +1,20 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public sealed class ProjectionStoreRuntimeOptions : IProjectionStoreSelectionRuntimeOptions
+{
+    public ProjectionStoreMode Mode { get; set; } = ProjectionStoreMode.Custom;
+
+    public string DocumentProvider { get; set; } = ProjectionProviderNames.InMemory;
+
+    public string GraphProvider { get; set; } = ProjectionProviderNames.InMemory;
+
+    public bool FailOnUnsupportedCapabilities { get; set; } = true;
+
+    string IProjectionStoreSelectionRuntimeOptions.DocumentProvider => DocumentProvider;
+
+    string IProjectionStoreSelectionRuntimeOptions.GraphProvider => GraphProvider;
+
+    bool IProjectionStoreSelectionRuntimeOptions.FailOnUnsupportedCapabilities => FailOnUnsupportedCapabilities;
+
+    ProjectionStoreMode IProjectionStoreSelectionRuntimeOptions.StoreMode => Mode;
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelectionOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreSelectionOptions.cs
similarity index 53%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelectionOptions.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreSelectionOptions.cs
index 15cb74b61..33f974691 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelectionOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreSelectionOptions.cs
@@ -1,6 +1,6 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
-public sealed class ProjectionReadModelStoreSelectionOptions
+public sealed class ProjectionStoreSelectionOptions
 {
     public string RequestedProviderName { get; set; } = "";
 
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionGraphMaterializer.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionGraphMaterializer.cs
new file mode 100644
index 000000000..8a8f0cb50
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionGraphMaterializer.cs
@@ -0,0 +1,7 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionGraphMaterializer<in TReadModel>
+    where TReadModel : class
+{
+    Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs
similarity index 89%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs
index f66d7d1b1..4f503ad2d 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
 public interface IProjectionMaterializationRouter<TReadModel, in TKey>
     where TReadModel : class, IProjectionReadModel
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
similarity index 60%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
index 6021e7fc1..11f5a16b8 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
@@ -1,9 +1,9 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
 public interface IProjectionStoreSelectionPlanner
 {
     ProjectionStoreSelectionPlan Build(
         IProjectionStoreSelectionRuntimeOptions options,
         Type readModelType,
-        ProjectionReadModelRequirements relationRequirements);
+        ProjectionStoreRequirements graphRequirements);
 }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
similarity index 63%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
index c3770f599..7edfb023b 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
 public interface IProjectionStoreSelectionRuntimeOptions
 {
@@ -8,5 +8,5 @@ public interface IProjectionStoreSelectionRuntimeOptions
 
     bool FailOnUnsupportedCapabilities { get; }
 
-    ProjectionReadModelMode ReadModelMode { get; }
+    ProjectionStoreMode StoreMode { get; }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
new file mode 100644
index 000000000..0f49b9178
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
@@ -0,0 +1,15 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionStoreStartupValidator
+{
+    IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> ValidateDocumentProvider<TReadModel, TKey>(
+        IServiceProvider serviceProvider,
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements)
+        where TReadModel : class;
+
+    IProjectionStoreRegistration<IProjectionGraphStore> ValidateGraphProvider(
+        IServiceProvider serviceProvider,
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements);
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
similarity index 95%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
index abd131a43..0e567521a 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
@@ -1,4 +1,4 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
 public sealed class ProjectionProviderSelectionException : InvalidOperationException
 {
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
new file mode 100644
index 000000000..5fd89fe9b
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
@@ -0,0 +1,7 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public readonly record struct ProjectionStoreSelectionPlan(
+    ProjectionStoreRequirements DocumentRequirements,
+    ProjectionStoreSelectionOptions DocumentSelectionOptions,
+    ProjectionStoreRequirements GraphRequirements,
+    ProjectionStoreSelectionOptions GraphSelectionOptions);
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
similarity index 87%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
index e76c8ee8f..5647efbb9 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
@@ -1,16 +1,16 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
 public static class ProjectionStoreSelector
 {
     public static TRegistration Select<TRegistration>(
         IEnumerable<TRegistration> registrations,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements,
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements,
         Type logicalModelType,
         string noRegistrationsReason,
         string multipleRegistrationsReason,
         string providerNotRegisteredReason,
-        IProjectionReadModelCapabilityValidator? capabilityValidator = null)
+        IProjectionProviderCapabilityValidator? capabilityValidator = null)
         where TRegistration : IProjectionStoreRegistration
     {
         ArgumentNullException.ThrowIfNull(registrations);
@@ -36,11 +36,11 @@ public static TRegistration Select<TRegistration>(
             multipleRegistrationsReason,
             providerNotRegisteredReason);
         var violations = capabilityValidator == null
-            ? ProjectionReadModelCapabilityValidator.Validate(requirements, selected.Capabilities)
+            ? ProjectionProviderCapabilityValidator.Validate(requirements, selected.Capabilities)
             : capabilityValidator.Validate(requirements, selected.Capabilities);
         if (violations.Count > 0 && selectionOptions.FailOnUnsupportedCapabilities)
         {
-            throw new ProjectionReadModelCapabilityValidationException(
+            throw new ProjectionProviderCapabilityValidationException(
                 logicalModelType,
                 requirements,
                 selected.Capabilities,
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Aevatar.CQRS.Projection.Runtime.Abstractions.csproj b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Aevatar.CQRS.Projection.Runtime.Abstractions.csproj
new file mode 100644
index 000000000..b9ea244ae
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Aevatar.CQRS.Projection.Runtime.Abstractions.csproj
@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AssemblyName>Aevatar.CQRS.Projection.Runtime.Abstractions</AssemblyName>
+    <RootNamespace>Aevatar.CQRS.Projection.Runtime.Abstractions</RootNamespace>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
+  </ItemGroup>
+</Project>
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/GlobalUsings.cs
new file mode 100644
index 000000000..16f01928e
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/GlobalUsings.cs
@@ -0,0 +1 @@
+global using Aevatar.CQRS.Projection.Stores.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
new file mode 100644
index 000000000..99fc3fd56
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
@@ -0,0 +1,23 @@
+# Aevatar.CQRS.Projection.Runtime.Abstractions
+
+`Aevatar.CQRS.Projection.Runtime.Abstractions` 承载 Projection Runtime 的策略与编排契约，不承载具体实现。
+
+## 目录结构
+
+- `Abstractions/Core`：Provider 注册契约（`IProjectionStoreRegistration<TStore>`）
+- `Abstractions/ReadModels`：Document provider 选择、能力模型、runtime options、metadata resolver 契约
+- `Abstractions/Graphs`：Graph provider 选择与 factory 契约
+- `Abstractions/Selection`：统一选择计划、启动校验与 materialization 路由契约
+
+## 关键契约
+
+- Provider 注册与能力：`IProjectionStoreRegistration<TStore>`、`ProjectionProviderCapabilities`
+- 选择规划：`IProjectionStoreSelectionPlanner`、`ProjectionStoreSelectionPlan`
+- 运行时选择参数：`ProjectionStoreSelectionOptions`、`ProjectionStoreRequirements`、`IProjectionStoreSelectionRuntimeOptions`
+- Store factory：`IProjectionDocumentStoreFactory`、`IProjectionGraphStoreFactory`
+- Materialization：`IProjectionMaterializationRouter<TReadModel, TKey>`、`IProjectionGraphMaterializer<TReadModel>`
+
+## 约束
+
+1. 仅定义运行时编排协议，不包含具体 provider/store 实现。
+2. 仅依赖抽象层（`Stores.Abstractions`），不依赖业务模块。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj b/src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj
index c75aea117..032e6827c 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj
+++ b/src/Aevatar.CQRS.Projection.Runtime/Aevatar.CQRS.Projection.Runtime.csproj
@@ -7,6 +7,7 @@
     <RootNamespace>Aevatar.CQRS.Projection.Runtime</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Runtime.Abstractions\Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
     <ProjectReference Include="..\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index dda05d3d8..36f233c92 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -8,15 +8,15 @@ public static class ServiceCollectionExtensions
 {
     public static IServiceCollection AddProjectionReadModelRuntime(this IServiceCollection services)
     {
-        services.TryAddSingleton<IProjectionReadModelCapabilityValidator, ProjectionReadModelCapabilityValidatorService>();
-        services.TryAddSingleton<IProjectionReadModelProviderRegistry, ProjectionReadModelProviderRegistry>();
-        services.TryAddSingleton<IProjectionReadModelProviderSelector, ProjectionReadModelProviderSelector>();
+        services.TryAddSingleton<IProjectionProviderCapabilityValidator, ProjectionProviderCapabilityValidatorService>();
+        services.TryAddSingleton<IProjectionDocumentStoreProviderRegistry, ProjectionDocumentStoreProviderRegistry>();
+        services.TryAddSingleton<IProjectionDocumentStoreProviderSelector, ProjectionDocumentStoreProviderSelector>();
         services.TryAddSingleton<IProjectionStoreSelectionPlanner, ProjectionStoreSelectionPlanner>();
-        services.TryAddSingleton<IProjectionReadModelStoreFactory, ProjectionReadModelStoreFactory>();
-        services.TryAddSingleton<IProjectionRelationStoreProviderRegistry, ProjectionRelationStoreProviderRegistry>();
-        services.TryAddSingleton<IProjectionRelationStoreProviderSelector, ProjectionRelationStoreProviderSelector>();
-        services.TryAddSingleton<IProjectionRelationStoreFactory, ProjectionRelationStoreFactory>();
-        services.TryAddSingleton(typeof(IGraphProjectionStore<>), typeof(ProjectionGraphStoreAdapter<>));
+        services.TryAddSingleton<IProjectionDocumentStoreFactory, ProjectionDocumentStoreFactory>();
+        services.TryAddSingleton<IProjectionGraphStoreProviderRegistry, ProjectionGraphStoreProviderRegistry>();
+        services.TryAddSingleton<IProjectionGraphStoreProviderSelector, ProjectionGraphStoreProviderSelector>();
+        services.TryAddSingleton<IProjectionGraphStoreFactory, ProjectionGraphStoreFactory>();
+        services.TryAddSingleton(typeof(IProjectionGraphMaterializer<>), typeof(ProjectionGraphMaterializer<>));
         services.TryAddSingleton(typeof(IProjectionMaterializationRouter<,>), typeof(ProjectionMaterializationRouter<,>));
         services.TryAddSingleton<IProjectionDocumentMetadataResolver, ProjectionDocumentMetadataResolver>();
         services.TryAddSingleton<IProjectionStoreStartupValidator, ProjectionStoreStartupValidator>();
diff --git a/src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs b/src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs
index 16f01928e..7844512e6 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/GlobalUsings.cs
@@ -1 +1,2 @@
 global using Aevatar.CQRS.Projection.Stores.Abstractions;
+global using Aevatar.CQRS.Projection.Runtime.Abstractions;
diff --git a/src/Aevatar.CQRS.Projection.Runtime/README.md b/src/Aevatar.CQRS.Projection.Runtime/README.md
index f7dc5829b..d282ace16 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime/README.md
@@ -4,11 +4,12 @@
 
 ## 职责
 
-- 收敛 Provider 注册查询（`IProjectionReadModelProviderRegistry`）。
-- 执行 Provider 选择策略（`IProjectionReadModelProviderSelector`）。
+- 收敛 Provider 注册查询（`IProjectionDocumentStoreProviderRegistry`）。
+- 执行 Provider 选择策略（`IProjectionDocumentStoreProviderSelector`）。
 - 按 `IDocumentReadModel/IGraphReadModel` 能力推导选择需求（`IProjectionStoreSelectionPlanner`）。
-- 统一创建 Store 并输出结构化创建日志（`IProjectionReadModelStoreFactory`）。
-- 提供 `IProjectionMaterializationRouter<TReadModel, TKey>` 与 `ProjectionGraphStoreAdapter<TReadModel>` 双写路由能力。
+- 统一创建 Store 并输出结构化创建日志（`IProjectionDocumentStoreFactory`）。
+- 提供 `IProjectionMaterializationRouter<TReadModel, TKey>` 与 `ProjectionGraphMaterializer<TReadModel>` 双写路由能力。
+- 所有上述契约统一来自 `Aevatar.CQRS.Projection.Runtime.Abstractions`。
 
 ## DI 入口
 
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs
index c63f2d44a..397341711 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs
@@ -14,7 +14,7 @@ public ProjectionDocumentMetadataResolver(IServiceProvider serviceProvider)
     public DocumentIndexMetadata Resolve<TReadModel>()
         where TReadModel : class, IDocumentReadModel
     {
-        var provider = _serviceProvider.GetRequiredService<IReadModelDocumentMetadataProvider<TReadModel>>();
+        var provider = _serviceProvider.GetRequiredService<IProjectionDocumentMetadataProvider<TReadModel>>();
         return provider.Metadata;
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
similarity index 56%
rename from src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs
rename to src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
index 303b5c8ae..dc3908c08 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
@@ -3,27 +3,27 @@
 
 namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
-public sealed class ProjectionReadModelStoreFactory
-    : IProjectionReadModelStoreFactory
+public sealed class ProjectionDocumentStoreFactory
+    : IProjectionDocumentStoreFactory
 {
-    private readonly IProjectionReadModelProviderRegistry _providerRegistry;
-    private readonly IProjectionReadModelProviderSelector _providerSelector;
-    private readonly ILogger<ProjectionReadModelStoreFactory> _logger;
+    private readonly IProjectionDocumentStoreProviderRegistry _providerRegistry;
+    private readonly IProjectionDocumentStoreProviderSelector _providerSelector;
+    private readonly ILogger<ProjectionDocumentStoreFactory> _logger;
 
-    public ProjectionReadModelStoreFactory(
-        IProjectionReadModelProviderRegistry providerRegistry,
-        IProjectionReadModelProviderSelector providerSelector,
-        ILogger<ProjectionReadModelStoreFactory>? logger = null)
+    public ProjectionDocumentStoreFactory(
+        IProjectionDocumentStoreProviderRegistry providerRegistry,
+        IProjectionDocumentStoreProviderSelector providerSelector,
+        ILogger<ProjectionDocumentStoreFactory>? logger = null)
     {
         _providerRegistry = providerRegistry;
         _providerSelector = providerSelector;
-        _logger = logger ?? NullLogger<ProjectionReadModelStoreFactory>.Instance;
+        _logger = logger ?? NullLogger<ProjectionDocumentStoreFactory>.Instance;
     }
 
-    public IProjectionReadModelStore<TReadModel, TKey> Create<TReadModel, TKey>(
+    public IDocumentProjectionStore<TReadModel, TKey> Create<TReadModel, TKey>(
         IServiceProvider serviceProvider,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements)
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
@@ -39,7 +39,7 @@ public IProjectionReadModelStore<TReadModel, TKey> Create<TReadModel, TKey>(
             var store = selected.Create(serviceProvider);
             var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
             _logger.LogInformation(
-                "Projection read-model store created. provider={Provider} readModelType={ReadModelType} elapsedMs={ElapsedMs} result={Result}",
+                "Projection document store created. provider={Provider} readModelType={ReadModelType} elapsedMs={ElapsedMs} result={Result}",
                 selected.ProviderName,
                 typeof(TReadModel).FullName,
                 elapsedMs,
@@ -51,7 +51,7 @@ public IProjectionReadModelStore<TReadModel, TKey> Create<TReadModel, TKey>(
             var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
             _logger.LogError(
                 ex,
-                "Projection read-model store creation failed. provider={Provider} readModelType={ReadModelType} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
+                "Projection document store creation failed. provider={Provider} readModelType={ReadModelType} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
                 selected.ProviderName,
                 typeof(TReadModel).FullName,
                 elapsedMs,
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderRegistry.cs
new file mode 100644
index 000000000..4f21ce069
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderRegistry.cs
@@ -0,0 +1,16 @@
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionDocumentStoreProviderRegistry : IProjectionDocumentStoreProviderRegistry
+{
+    public IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> GetRegistrations<TReadModel, TKey>(
+        IServiceProvider serviceProvider)
+        where TReadModel : class
+    {
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+        return serviceProvider
+            .GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>()
+            .ToList();
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderSelector.cs
similarity index 65%
rename from src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
rename to src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderSelector.cs
index 78db1b275..d92733a1a 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderSelector.cs
@@ -3,24 +3,24 @@
 
 namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
-public sealed class ProjectionReadModelProviderSelector
-    : IProjectionReadModelProviderSelector
+public sealed class ProjectionDocumentStoreProviderSelector
+    : IProjectionDocumentStoreProviderSelector
 {
-    private readonly IProjectionReadModelCapabilityValidator _capabilityValidator;
-    private readonly ILogger<ProjectionReadModelProviderSelector> _logger;
+    private readonly IProjectionProviderCapabilityValidator _capabilityValidator;
+    private readonly ILogger<ProjectionDocumentStoreProviderSelector> _logger;
 
-    public ProjectionReadModelProviderSelector(
-        IProjectionReadModelCapabilityValidator capabilityValidator,
-        ILogger<ProjectionReadModelProviderSelector>? logger = null)
+    public ProjectionDocumentStoreProviderSelector(
+        IProjectionProviderCapabilityValidator capabilityValidator,
+        ILogger<ProjectionDocumentStoreProviderSelector>? logger = null)
     {
         _capabilityValidator = capabilityValidator;
-        _logger = logger ?? NullLogger<ProjectionReadModelProviderSelector>.Instance;
+        _logger = logger ?? NullLogger<ProjectionDocumentStoreProviderSelector>.Instance;
     }
 
-    public IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>> Select<TReadModel, TKey>(
-        IReadOnlyList<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>> registrations,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements)
+    public IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> Select<TReadModel, TKey>(
+        IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(registrations);
@@ -29,7 +29,7 @@ public IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>
 
         try
         {
-            var selected = ProjectionReadModelStoreSelector.Select(
+            var selected = ProjectionDocumentStoreSelector.Select(
                 registrations,
                 selectionOptions,
                 requirements,
@@ -41,7 +41,7 @@ public IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>
                 selectionOptions.FailOnUnsupportedCapabilities);
             return selected;
         }
-        catch (ProjectionReadModelCapabilityValidationException ex)
+        catch (ProjectionProviderCapabilityValidationException ex)
         {
             _logger.LogError(
                 "Projection provider capability validation failed. readModel={ReadModel} provider={Provider} requiredCapabilities={RequiredCapabilities} actualCapabilities={ActualCapabilities} violations={Violations}",
@@ -66,23 +66,23 @@ public IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>
         }
     }
 
-    private static string FormatRequirements(ProjectionReadModelRequirements requirements)
+    private static string FormatRequirements(ProjectionStoreRequirements requirements)
     {
         return $"requiresIndexing={requirements.RequiresIndexing};" +
                $"requiredIndexKinds=[{string.Join(",", requirements.RequiredIndexKinds)}];" +
                $"requiresAliases={requirements.RequiresAliases};" +
                $"requiresSchemaValidation={requirements.RequiresSchemaValidation};" +
-               $"requiresRelations={requirements.RequiresRelations};" +
-               $"requiresRelationTraversal={requirements.RequiresRelationTraversal}";
+               $"requiresGraph={requirements.RequiresGraph};" +
+               $"requiresGraphTraversal={requirements.RequiresGraphTraversal}";
     }
 
-    private static string FormatCapabilities(ProjectionReadModelProviderCapabilities capabilities)
+    private static string FormatCapabilities(ProjectionProviderCapabilities capabilities)
     {
         return $"supportsIndexing={capabilities.SupportsIndexing};" +
                $"indexKinds=[{string.Join(",", capabilities.IndexKinds)}];" +
                $"supportsAliases={capabilities.SupportsAliases};" +
                $"supportsSchemaValidation={capabilities.SupportsSchemaValidation};" +
-               $"supportsRelations={capabilities.SupportsRelations};" +
-               $"supportsRelationTraversal={capabilities.SupportsRelationTraversal}";
+               $"supportsGraph={capabilities.SupportsGraph};" +
+               $"supportsGraphTraversal={capabilities.SupportsGraphTraversal}";
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreAdapter.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
similarity index 70%
rename from src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreAdapter.cs
rename to src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
index 2642fe261..a14140597 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreAdapter.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
@@ -1,16 +1,16 @@
 namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
-public sealed class ProjectionGraphStoreAdapter<TReadModel>
-    : IGraphProjectionStore<TReadModel>
+public sealed class ProjectionGraphMaterializer<TReadModel>
+    : IProjectionGraphMaterializer<TReadModel>
     where TReadModel : class
 {
     private const string ManagedMarkerKey = "projectionManaged";
     private const string ManagedMarkerValue = "true";
-    private readonly IProjectionRelationStore _relationStore;
+    private readonly IProjectionGraphStore _graphStore;
 
-    public ProjectionGraphStoreAdapter(IProjectionRelationStore relationStore)
+    public ProjectionGraphMaterializer(IProjectionGraphStore graphStore)
     {
-        _relationStore = relationStore;
+        _graphStore = graphStore;
     }
 
     public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct = default)
@@ -29,22 +29,22 @@ public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct =
 
         var normalizedNodes = NormalizeNodes(graphReadModel.GraphNodes, scope);
         foreach (var node in normalizedNodes)
-            await _relationStore.UpsertNodeAsync(node, ct);
+            await _graphStore.UpsertNodeAsync(node, ct);
 
         var normalizedEdges = NormalizeEdges(graphReadModel.GraphEdges, scope);
         foreach (var edge in normalizedEdges)
-            await _relationStore.UpsertEdgeAsync(edge, ct);
+            await _graphStore.UpsertEdgeAsync(edge, ct);
 
         var anchorNodeId = ResolveAnchorNodeId(graphReadModel, normalizedNodes, normalizedEdges);
         if (anchorNodeId.Length == 0)
             return;
 
-        var existing = await _relationStore.GetSubgraphAsync(
-            new ProjectionRelationQuery
+        var existing = await _graphStore.GetSubgraphAsync(
+            new ProjectionGraphQuery
             {
                 Scope = scope,
                 RootNodeId = anchorNodeId,
-                Direction = ProjectionRelationDirection.Both,
+                Direction = ProjectionGraphDirection.Both,
                 Depth = 8,
                 Take = 5000,
             },
@@ -59,24 +59,14 @@ public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct =
             if (targetEdgeIds.Contains(edge.EdgeId))
                 continue;
 
-            await _relationStore.DeleteEdgeAsync(scope, edge.EdgeId, ct);
+            await _graphStore.DeleteEdgeAsync(scope, edge.EdgeId, ct);
         }
     }
 
-    public Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
-        ProjectionRelationQuery query,
-        CancellationToken ct = default) =>
-        _relationStore.GetNeighborsAsync(query, ct);
-
-    public Task<ProjectionRelationSubgraph> GetSubgraphAsync(
-        ProjectionRelationQuery query,
-        CancellationToken ct = default) =>
-        _relationStore.GetSubgraphAsync(query, ct);
-
     private static string ResolveAnchorNodeId(
         IGraphReadModel readModel,
-        IReadOnlyList<ProjectionRelationNode> nodes,
-        IReadOnlyList<ProjectionRelationEdge> edges)
+        IReadOnlyList<ProjectionGraphNode> nodes,
+        IReadOnlyList<ProjectionGraphEdge> edges)
     {
         var firstNodeId = nodes.FirstOrDefault()?.NodeId ?? "";
         if (firstNodeId.Length > 0)
@@ -89,20 +79,20 @@ private static string ResolveAnchorNodeId(
         return edges.FirstOrDefault()?.FromNodeId ?? "";
     }
 
-    private static bool IsManagedEdge(ProjectionRelationEdge edge)
+    private static bool IsManagedEdge(ProjectionGraphEdge edge)
     {
         return edge.Properties.TryGetValue(ManagedMarkerKey, out var markerValue) &&
                string.Equals(markerValue, ManagedMarkerValue, StringComparison.Ordinal);
     }
 
-    private static IReadOnlyList<ProjectionRelationNode> NormalizeNodes(
+    private static IReadOnlyList<ProjectionGraphNode> NormalizeNodes(
         IReadOnlyList<GraphNodeDescriptor> graphNodes,
         string scope)
     {
         if (graphNodes.Count == 0)
             return [];
 
-        var nodesById = new Dictionary<string, ProjectionRelationNode>(StringComparer.Ordinal);
+        var nodesById = new Dictionary<string, ProjectionGraphNode>(StringComparer.Ordinal);
         foreach (var graphNode in graphNodes)
         {
             var nodeId = NormalizeToken(graphNode.NodeId);
@@ -113,7 +103,7 @@ private static IReadOnlyList<ProjectionRelationNode> NormalizeNodes(
             if (nodeType.Length == 0)
                 nodeType = "Unknown";
 
-            nodesById[nodeId] = new ProjectionRelationNode
+            nodesById[nodeId] = new ProjectionGraphNode
             {
                 Scope = scope,
                 NodeId = nodeId,
@@ -126,18 +116,18 @@ private static IReadOnlyList<ProjectionRelationNode> NormalizeNodes(
         return nodesById.Values.ToList();
     }
 
-    private static IReadOnlyList<ProjectionRelationEdge> NormalizeEdges(
+    private static IReadOnlyList<ProjectionGraphEdge> NormalizeEdges(
         IReadOnlyList<GraphEdgeDescriptor> graphEdges,
         string scope)
     {
         if (graphEdges.Count == 0)
             return [];
 
-        var edgesById = new Dictionary<string, ProjectionRelationEdge>(StringComparer.Ordinal);
+        var edgesById = new Dictionary<string, ProjectionGraphEdge>(StringComparer.Ordinal);
         foreach (var graphEdge in graphEdges)
         {
             var edgeId = NormalizeToken(graphEdge.EdgeId);
-            var relationType = NormalizeToken(graphEdge.RelationType);
+            var relationType = NormalizeToken(graphEdge.EdgeType);
             var fromNodeId = NormalizeToken(graphEdge.FromNodeId);
             var toNodeId = NormalizeToken(graphEdge.ToNodeId);
             if (edgeId.Length == 0 ||
@@ -153,11 +143,11 @@ private static IReadOnlyList<ProjectionRelationEdge> NormalizeEdges(
                 [ManagedMarkerKey] = ManagedMarkerValue,
             };
 
-            edgesById[edgeId] = new ProjectionRelationEdge
+            edgesById[edgeId] = new ProjectionGraphEdge
             {
                 Scope = scope,
                 EdgeId = edgeId,
-                RelationType = relationType,
+                EdgeType = relationType,
                 FromNodeId = fromNodeId,
                 ToNodeId = toNodeId,
                 Properties = properties,
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
similarity index 66%
rename from src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreFactory.cs
rename to src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
index 32e2156aa..c5eba2fbc 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
@@ -3,26 +3,26 @@
 
 namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
-public sealed class ProjectionRelationStoreFactory : IProjectionRelationStoreFactory
+public sealed class ProjectionGraphStoreFactory : IProjectionGraphStoreFactory
 {
-    private readonly IProjectionRelationStoreProviderRegistry _providerRegistry;
-    private readonly IProjectionRelationStoreProviderSelector _providerSelector;
-    private readonly ILogger<ProjectionRelationStoreFactory> _logger;
+    private readonly IProjectionGraphStoreProviderRegistry _providerRegistry;
+    private readonly IProjectionGraphStoreProviderSelector _providerSelector;
+    private readonly ILogger<ProjectionGraphStoreFactory> _logger;
 
-    public ProjectionRelationStoreFactory(
-        IProjectionRelationStoreProviderRegistry providerRegistry,
-        IProjectionRelationStoreProviderSelector providerSelector,
-        ILogger<ProjectionRelationStoreFactory>? logger = null)
+    public ProjectionGraphStoreFactory(
+        IProjectionGraphStoreProviderRegistry providerRegistry,
+        IProjectionGraphStoreProviderSelector providerSelector,
+        ILogger<ProjectionGraphStoreFactory>? logger = null)
     {
         _providerRegistry = providerRegistry;
         _providerSelector = providerSelector;
-        _logger = logger ?? NullLogger<ProjectionRelationStoreFactory>.Instance;
+        _logger = logger ?? NullLogger<ProjectionGraphStoreFactory>.Instance;
     }
 
-    public IProjectionRelationStore Create(
+    public IProjectionGraphStore Create(
         IServiceProvider serviceProvider,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements)
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements)
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
         ArgumentNullException.ThrowIfNull(selectionOptions);
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderRegistry.cs
similarity index 65%
rename from src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderRegistry.cs
rename to src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderRegistry.cs
index 06b0e7497..848439bd5 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderRegistry.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderRegistry.cs
@@ -2,13 +2,13 @@
 
 namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
-public sealed class ProjectionRelationStoreProviderRegistry : IProjectionRelationStoreProviderRegistry
+public sealed class ProjectionGraphStoreProviderRegistry : IProjectionGraphStoreProviderRegistry
 {
-    public IReadOnlyList<IProjectionStoreRegistration<IProjectionRelationStore>> GetRegistrations(IServiceProvider serviceProvider)
+    public IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> GetRegistrations(IServiceProvider serviceProvider)
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
         return serviceProvider
-            .GetServices<IProjectionStoreRegistration<IProjectionRelationStore>>()
+            .GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>()
             .ToList();
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderSelector.cs
similarity index 56%
rename from src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderSelector.cs
rename to src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderSelector.cs
index e3012113e..ea72060ca 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionRelationStoreProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderSelector.cs
@@ -3,34 +3,34 @@
 
 namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
-public sealed class ProjectionRelationStoreProviderSelector
-    : IProjectionRelationStoreProviderSelector
+public sealed class ProjectionGraphStoreProviderSelector
+    : IProjectionGraphStoreProviderSelector
 {
-    private readonly IProjectionReadModelCapabilityValidator _capabilityValidator;
-    private readonly ILogger<ProjectionRelationStoreProviderSelector> _logger;
+    private readonly IProjectionProviderCapabilityValidator _capabilityValidator;
+    private readonly ILogger<ProjectionGraphStoreProviderSelector> _logger;
 
-    public ProjectionRelationStoreProviderSelector(
-        IProjectionReadModelCapabilityValidator capabilityValidator,
-        ILogger<ProjectionRelationStoreProviderSelector>? logger = null)
+    public ProjectionGraphStoreProviderSelector(
+        IProjectionProviderCapabilityValidator capabilityValidator,
+        ILogger<ProjectionGraphStoreProviderSelector>? logger = null)
     {
         _capabilityValidator = capabilityValidator;
-        _logger = logger ?? NullLogger<ProjectionRelationStoreProviderSelector>.Instance;
+        _logger = logger ?? NullLogger<ProjectionGraphStoreProviderSelector>.Instance;
     }
 
-    public IProjectionStoreRegistration<IProjectionRelationStore> Select(
-        IReadOnlyList<IProjectionStoreRegistration<IProjectionRelationStore>> registrations,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements)
+    public IProjectionStoreRegistration<IProjectionGraphStore> Select(
+        IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> registrations,
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements)
     {
         ArgumentNullException.ThrowIfNull(registrations);
         ArgumentNullException.ThrowIfNull(selectionOptions);
         ArgumentNullException.ThrowIfNull(requirements);
 
-        var selected = ProjectionStoreSelector.Select<IProjectionStoreRegistration<IProjectionRelationStore>>(
+        var selected = ProjectionStoreSelector.Select<IProjectionStoreRegistration<IProjectionGraphStore>>(
             registrations,
             selectionOptions,
             requirements,
-            typeof(ProjectionRelationNode),
+            typeof(ProjectionGraphNode),
             noRegistrationsReason: "No relation store provider registrations were found.",
             multipleRegistrationsReason: "Multiple relation store providers are registered but no explicit provider was requested.",
             providerNotRegisteredReason: "Requested relation store provider is not registered.",
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs
index 64c163880..a67661c81 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs
@@ -8,18 +8,18 @@ public sealed class ProjectionMaterializationRouter<TReadModel, TKey>
     where TReadModel : class, IProjectionReadModel
 {
     private readonly IDocumentProjectionStore<TReadModel, TKey>? _documentStore;
-    private readonly IGraphProjectionStore<TReadModel>? _graphStore;
+    private readonly IProjectionGraphMaterializer<TReadModel>? _graphMaterializer;
     private readonly ILogger<ProjectionMaterializationRouter<TReadModel, TKey>> _logger;
     private readonly bool _requiresDocumentStore = typeof(IDocumentReadModel).IsAssignableFrom(typeof(TReadModel));
     private readonly bool _requiresGraphStore = typeof(IGraphReadModel).IsAssignableFrom(typeof(TReadModel));
 
     public ProjectionMaterializationRouter(
         IDocumentProjectionStore<TReadModel, TKey>? documentStore = null,
-        IGraphProjectionStore<TReadModel>? graphStore = null,
+        IProjectionGraphMaterializer<TReadModel>? graphMaterializer = null,
         ILogger<ProjectionMaterializationRouter<TReadModel, TKey>>? logger = null)
     {
         _documentStore = documentStore;
-        _graphStore = graphStore;
+        _graphMaterializer = graphMaterializer;
         _logger = logger ?? NullLogger<ProjectionMaterializationRouter<TReadModel, TKey>>.Instance;
     }
 
@@ -33,7 +33,7 @@ public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = defau
             await _documentStore!.UpsertAsync(readModel, ct);
 
         if (_requiresGraphStore)
-            await _graphStore!.UpsertGraphAsync(readModel, ct);
+            await _graphMaterializer!.UpsertGraphAsync(readModel, ct);
     }
 
     public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
@@ -59,7 +59,7 @@ public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationT
             return;
         }
 
-        await _graphStore!.UpsertGraphAsync(updated, ct);
+        await _graphMaterializer!.UpsertGraphAsync(updated, ct);
     }
 
     public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
@@ -92,10 +92,10 @@ private void EnsureStoresReady()
                 $"Document capability is required by read model '{typeof(TReadModel).FullName}', but no document projection store is registered.");
         }
 
-        if (_requiresGraphStore && _graphStore == null)
+        if (_requiresGraphStore && _graphMaterializer == null)
         {
             throw new InvalidOperationException(
-                $"Graph capability is required by read model '{typeof(TReadModel).FullName}', but no graph projection store is registered.");
+                $"Graph capability is required by read model '{typeof(TReadModel).FullName}', but no graph projection materializer is registered.");
         }
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionProviderCapabilityValidatorService.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionProviderCapabilityValidatorService.cs
new file mode 100644
index 000000000..ff6810169
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionProviderCapabilityValidatorService.cs
@@ -0,0 +1,15 @@
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionProviderCapabilityValidatorService : IProjectionProviderCapabilityValidator
+{
+    public IReadOnlyList<string> Validate(
+        ProjectionStoreRequirements requirements,
+        ProjectionProviderCapabilities capabilities) =>
+        ProjectionProviderCapabilityValidator.Validate(requirements, capabilities);
+
+    public void EnsureSupported(
+        Type readModelType,
+        ProjectionStoreRequirements requirements,
+        ProjectionProviderCapabilities capabilities) =>
+        ProjectionProviderCapabilityValidator.EnsureSupported(readModelType, requirements, capabilities);
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
deleted file mode 100644
index 229b6bd24..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelBindingResolver.cs
+++ /dev/null
@@ -1,65 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionReadModelBindingResolver : IProjectionReadModelBindingResolver
-{
-    public ProjectionReadModelRequirements Resolve(
-        IReadOnlyDictionary<string, string> readModelBindings,
-        Type readModelType)
-    {
-        ArgumentNullException.ThrowIfNull(readModelBindings);
-        ArgumentNullException.ThrowIfNull(readModelType);
-
-        if (!TryGetBinding(readModelBindings, readModelType, out var bindingKey, out var bindingValue))
-            return new ProjectionReadModelRequirements();
-
-        if (!Enum.TryParse<ProjectionReadModelIndexKind>(bindingValue, true, out var indexKind) ||
-            indexKind == ProjectionReadModelIndexKind.None)
-        {
-            throw new ProjectionReadModelBindingException(
-                readModelType,
-                bindingKey,
-                bindingValue,
-                $"Allowed values are {ProjectionReadModelIndexKind.Document} or {ProjectionReadModelIndexKind.Graph}.");
-        }
-
-        return new ProjectionReadModelRequirements(
-            requiresIndexing: true,
-            requiredIndexKinds: [indexKind],
-            requiresRelations: indexKind == ProjectionReadModelIndexKind.Graph,
-            requiresRelationTraversal: indexKind == ProjectionReadModelIndexKind.Graph);
-    }
-
-    private static bool TryGetBinding(
-        IReadOnlyDictionary<string, string> readModelBindings,
-        Type readModelType,
-        out string bindingKey,
-        out string bindingValue)
-    {
-        if (readModelBindings.Count == 0)
-        {
-            bindingKey = "";
-            bindingValue = "";
-            return false;
-        }
-
-        var fullName = readModelType.FullName ?? "";
-        if (fullName.Length > 0 && readModelBindings.TryGetValue(fullName, out bindingValue!))
-        {
-            bindingKey = fullName;
-            return true;
-        }
-
-        if (readModelBindings.TryGetValue(readModelType.Name, out bindingValue!))
-        {
-            throw new ProjectionReadModelBindingException(
-                readModelType,
-                readModelType.Name,
-                bindingValue,
-                $"Binding key must use full type name '{fullName}'.");
-        }
-
-        bindingKey = "";
-        bindingValue = "";
-        return false;
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelCapabilityValidatorService.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelCapabilityValidatorService.cs
deleted file mode 100644
index ffc731b26..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelCapabilityValidatorService.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionReadModelCapabilityValidatorService : IProjectionReadModelCapabilityValidator
-{
-    public IReadOnlyList<string> Validate(
-        ProjectionReadModelRequirements requirements,
-        ProjectionReadModelProviderCapabilities capabilities) =>
-        ProjectionReadModelCapabilityValidator.Validate(requirements, capabilities);
-
-    public void EnsureSupported(
-        Type readModelType,
-        ProjectionReadModelRequirements requirements,
-        ProjectionReadModelProviderCapabilities capabilities) =>
-        ProjectionReadModelCapabilityValidator.EnsureSupported(readModelType, requirements, capabilities);
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs
deleted file mode 100644
index 7784b8631..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderRegistry.cs
+++ /dev/null
@@ -1,16 +0,0 @@
-using Microsoft.Extensions.DependencyInjection;
-
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionReadModelProviderRegistry : IProjectionReadModelProviderRegistry
-{
-    public IReadOnlyList<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>> GetRegistrations<TReadModel, TKey>(
-        IServiceProvider serviceProvider)
-        where TReadModel : class
-    {
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-        return serviceProvider
-            .GetServices<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>()
-            .ToList();
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
index bb1cb8e63..8e79e95fc 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
@@ -5,24 +5,24 @@ public sealed class ProjectionStoreSelectionPlanner : IProjectionStoreSelectionP
     public ProjectionStoreSelectionPlan Build(
         IProjectionStoreSelectionRuntimeOptions options,
         Type readModelType,
-        ProjectionReadModelRequirements relationRequirements)
+        ProjectionStoreRequirements graphRequirements)
     {
         ArgumentNullException.ThrowIfNull(options);
         ArgumentNullException.ThrowIfNull(readModelType);
-        ArgumentNullException.ThrowIfNull(relationRequirements);
-        EnsureReadModelModeSupported(options.ReadModelMode);
+        ArgumentNullException.ThrowIfNull(graphRequirements);
+        EnsureStoreModeSupported(options.StoreMode);
 
-        var readModelRequirements = BuildReadModelRequirements(readModelType);
+        var readModelRequirements = BuildDocumentRequirements(readModelType);
         var readModelRequiresGraph = typeof(IGraphReadModel).IsAssignableFrom(readModelType);
         var readModelProvider = NormalizeRequiredProviderName(options.DocumentProvider);
-        var readModelSelectionOptions = new ProjectionReadModelStoreSelectionOptions
+        var readModelSelectionOptions = new ProjectionStoreSelectionOptions
         {
             RequestedProviderName = readModelProvider,
             FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
         };
 
-        var mergedRelationRequirements = MergeRelationRequirements(relationRequirements, readModelRequiresGraph);
-        var relationSelectionOptions = new ProjectionReadModelStoreSelectionOptions
+        var mergedGraphRequirements = MergeGraphRequirements(graphRequirements, readModelRequiresGraph);
+        var graphSelectionOptions = new ProjectionStoreSelectionOptions
         {
             RequestedProviderName = NormalizeGraphProviderName(
                 options.GraphProvider,
@@ -33,31 +33,31 @@ public ProjectionStoreSelectionPlan Build(
         return new ProjectionStoreSelectionPlan(
             readModelRequirements,
             readModelSelectionOptions,
-            mergedRelationRequirements,
-            relationSelectionOptions);
+            mergedGraphRequirements,
+            graphSelectionOptions);
     }
 
-    private static ProjectionReadModelRequirements MergeRelationRequirements(
-        ProjectionReadModelRequirements relationRequirements,
+    private static ProjectionStoreRequirements MergeGraphRequirements(
+        ProjectionStoreRequirements graphRequirements,
         bool readModelRequiresGraph)
     {
-        return new ProjectionReadModelRequirements(
-            requiresIndexing: relationRequirements.RequiresIndexing,
-            requiredIndexKinds: relationRequirements.RequiredIndexKinds,
-            requiresAliases: relationRequirements.RequiresAliases,
-            requiresSchemaValidation: relationRequirements.RequiresSchemaValidation,
-            requiresRelations: relationRequirements.RequiresRelations || readModelRequiresGraph,
-            requiresRelationTraversal: relationRequirements.RequiresRelationTraversal || readModelRequiresGraph);
+        return new ProjectionStoreRequirements(
+            requiresIndexing: graphRequirements.RequiresIndexing,
+            requiredIndexKinds: graphRequirements.RequiredIndexKinds,
+            requiresAliases: graphRequirements.RequiresAliases,
+            requiresSchemaValidation: graphRequirements.RequiresSchemaValidation,
+            requiresGraph: graphRequirements.RequiresGraph || readModelRequiresGraph,
+            requiresGraphTraversal: graphRequirements.RequiresGraphTraversal || readModelRequiresGraph);
     }
 
-    private static ProjectionReadModelRequirements BuildReadModelRequirements(Type readModelType)
+    private static ProjectionStoreRequirements BuildDocumentRequirements(Type readModelType)
     {
-        var requiredIndexKinds = new List<ProjectionReadModelIndexKind>();
+        var requiredIndexKinds = new List<ProjectionIndexKind>();
 
         if (typeof(IDocumentReadModel).IsAssignableFrom(readModelType))
-            requiredIndexKinds.Add(ProjectionReadModelIndexKind.Document);
+            requiredIndexKinds.Add(ProjectionIndexKind.Document);
 
-        return new ProjectionReadModelRequirements(
+        return new ProjectionStoreRequirements(
             requiresIndexing: requiredIndexKinds.Count > 0,
             requiredIndexKinds: requiredIndexKinds);
     }
@@ -83,13 +83,13 @@ private static string NormalizeGraphProviderName(
         return graphProviderName.Trim();
     }
 
-    private static void EnsureReadModelModeSupported(ProjectionReadModelMode readModelMode)
+    private static void EnsureStoreModeSupported(ProjectionStoreMode readModelMode)
     {
-        if (readModelMode != ProjectionReadModelMode.StateOnly)
+        if (readModelMode != ProjectionStoreMode.StateOnly)
             return;
 
         throw new InvalidOperationException(
             "Projection store selection does not support Projection:Document:Mode=StateOnly. " +
-            "Use CustomReadModel or DefaultReadModel.");
+            "Use Custom or Default.");
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
index eba8da2ca..ec2c4bda7 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
@@ -2,27 +2,27 @@ namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
 public sealed class ProjectionStoreStartupValidator : IProjectionStoreStartupValidator
 {
-    private readonly IProjectionReadModelProviderRegistry _readModelProviderRegistry;
-    private readonly IProjectionReadModelProviderSelector _readModelProviderSelector;
-    private readonly IProjectionRelationStoreProviderRegistry _relationProviderRegistry;
-    private readonly IProjectionRelationStoreProviderSelector _relationProviderSelector;
+    private readonly IProjectionDocumentStoreProviderRegistry _readModelProviderRegistry;
+    private readonly IProjectionDocumentStoreProviderSelector _readModelProviderSelector;
+    private readonly IProjectionGraphStoreProviderRegistry _graphProviderRegistry;
+    private readonly IProjectionGraphStoreProviderSelector _graphProviderSelector;
 
     public ProjectionStoreStartupValidator(
-        IProjectionReadModelProviderRegistry readModelProviderRegistry,
-        IProjectionReadModelProviderSelector readModelProviderSelector,
-        IProjectionRelationStoreProviderRegistry relationProviderRegistry,
-        IProjectionRelationStoreProviderSelector relationProviderSelector)
+        IProjectionDocumentStoreProviderRegistry readModelProviderRegistry,
+        IProjectionDocumentStoreProviderSelector readModelProviderSelector,
+        IProjectionGraphStoreProviderRegistry graphProviderRegistry,
+        IProjectionGraphStoreProviderSelector graphProviderSelector)
     {
         _readModelProviderRegistry = readModelProviderRegistry;
         _readModelProviderSelector = readModelProviderSelector;
-        _relationProviderRegistry = relationProviderRegistry;
-        _relationProviderSelector = relationProviderSelector;
+        _graphProviderRegistry = graphProviderRegistry;
+        _graphProviderSelector = graphProviderSelector;
     }
 
-    public IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>> ValidateReadModelProvider<TReadModel, TKey>(
+    public IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> ValidateDocumentProvider<TReadModel, TKey>(
         IServiceProvider serviceProvider,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements)
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
@@ -33,16 +33,16 @@ public IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>
         return _readModelProviderSelector.Select(registrations, selectionOptions, requirements);
     }
 
-    public IProjectionStoreRegistration<IProjectionRelationStore> ValidateRelationProvider(
+    public IProjectionStoreRegistration<IProjectionGraphStore> ValidateGraphProvider(
         IServiceProvider serviceProvider,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements)
+        ProjectionStoreSelectionOptions selectionOptions,
+        ProjectionStoreRequirements requirements)
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
         ArgumentNullException.ThrowIfNull(selectionOptions);
         ArgumentNullException.ThrowIfNull(requirements);
 
-        var registrations = _relationProviderRegistry.GetRegistrations(serviceProvider);
-        return _relationProviderSelector.Select(registrations, selectionOptions, requirements);
+        var registrations = _graphProviderRegistry.GetRegistrations(serviceProvider);
+        return _graphProviderSelector.Select(registrations, selectionOptions, requirements);
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/README.md b/src/Aevatar.CQRS.Projection.StateMirror/README.md
index 368e24c87..fdac1bc0d 100644
--- a/src/Aevatar.CQRS.Projection.StateMirror/README.md
+++ b/src/Aevatar.CQRS.Projection.StateMirror/README.md
@@ -5,4 +5,4 @@
 - 默认实现：`JsonStateMirrorProjection<TState, TReadModel>`。
 - 支持字段忽略：`StateMirrorProjectionOptions.IgnoredFields`。
 - 支持字段重命名：`StateMirrorProjectionOptions.RenamedFields`。
-- 可作为 `DefaultReadModel` 模式的基础设施组件复用。
+- 可作为 `Default` 模式的基础设施组件复用。
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs
deleted file mode 100644
index 39230890b..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IProjectionStoreProviderMetadata
-{
-    ProjectionReadModelProviderCapabilities ProviderCapabilities { get; }
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
new file mode 100644
index 000000000..d67e8f2bc
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
@@ -0,0 +1,18 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public interface IProjectionGraphStore
+{
+    Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default);
+
+    Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default);
+
+    Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default);
+
+    Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
+        ProjectionGraphQuery query,
+        CancellationToken ct = default);
+
+    Task<ProjectionGraphSubgraph> GetSubgraphAsync(
+        ProjectionGraphQuery query,
+        CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationDirection.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphDirection.cs
similarity index 73%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationDirection.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphDirection.cs
index 7acbeef1a..9da3bcc3b 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationDirection.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphDirection.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
-public enum ProjectionRelationDirection
+public enum ProjectionGraphDirection
 {
     Outbound = 0,
     Inbound = 1,
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationEdge.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphEdge.cs
similarity index 81%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationEdge.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphEdge.cs
index 13f0b8ca8..9b07546fd 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationEdge.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphEdge.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
-public sealed class ProjectionRelationEdge
+public sealed class ProjectionGraphEdge
 {
     public string Scope { get; set; } = "";
 
@@ -10,7 +10,7 @@ public sealed class ProjectionRelationEdge
 
     public string ToNodeId { get; set; } = "";
 
-    public string RelationType { get; set; } = "";
+    public string EdgeType { get; set; } = "";
 
     public Dictionary<string, string> Properties { get; set; } = new(StringComparer.Ordinal);
 
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationNode.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphNode.cs
similarity index 89%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationNode.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphNode.cs
index 6d7304aa7..24c9d8d7a 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationNode.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphNode.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
-public sealed class ProjectionRelationNode
+public sealed class ProjectionGraphNode
 {
     public string Scope { get; set; } = "";
 
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationQuery.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphQuery.cs
similarity index 53%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationQuery.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphQuery.cs
index 5bbe45c7b..fa4910230 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationQuery.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphQuery.cs
@@ -1,14 +1,14 @@
 namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
-public sealed class ProjectionRelationQuery
+public sealed class ProjectionGraphQuery
 {
     public string Scope { get; set; } = "";
 
     public string RootNodeId { get; set; } = "";
 
-    public ProjectionRelationDirection Direction { get; set; } = ProjectionRelationDirection.Both;
+    public ProjectionGraphDirection Direction { get; set; } = ProjectionGraphDirection.Both;
 
-    public IReadOnlyList<string> RelationTypes { get; set; } = [];
+    public IReadOnlyList<string> EdgeTypes { get; set; } = [];
 
     public int Depth { get; set; } = 1;
 
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSubgraph.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSubgraph.cs
new file mode 100644
index 000000000..82b3cc090
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSubgraph.cs
@@ -0,0 +1,14 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public sealed class ProjectionGraphSubgraph
+{
+    public ProjectionGraphSubgraph()
+    {
+        Nodes = [];
+        Edges = [];
+    }
+
+    public IReadOnlyList<ProjectionGraphNode> Nodes { get; set; }
+
+    public IReadOnlyList<ProjectionGraphEdge> Edges { get; set; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs
index 02bbd941c..1b580bca8 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs
@@ -2,7 +2,7 @@ namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed record GraphEdgeDescriptor(
     string EdgeId,
-    string RelationType,
+    string EdgeType,
     string FromNodeId,
     string ToNodeId,
     IReadOnlyDictionary<string, string> Properties,
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphProjectionStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphProjectionStore.cs
deleted file mode 100644
index 43aeedcb1..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphProjectionStore.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IGraphProjectionStore<in TReadModel>
-    where TReadModel : class
-{
-    Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct = default);
-
-    Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
-        ProjectionRelationQuery query,
-        CancellationToken ct = default);
-
-    Task<ProjectionRelationSubgraph> GetSubgraphAsync(
-        ProjectionRelationQuery query,
-        CancellationToken ct = default);
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IReadModelDocumentMetadataProvider.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs
similarity index 68%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IReadModelDocumentMetadataProvider.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs
index 9dc887eb3..8a2d73235 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IReadModelDocumentMetadataProvider.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
-public interface IReadModelDocumentMetadataProvider<out TReadModel>
+public interface IProjectionDocumentMetadataProvider<out TReadModel>
     where TReadModel : class, IDocumentReadModel
 {
     DocumentIndexMetadata Metadata { get; }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs
deleted file mode 100644
index 0ac47587d..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelBindingResolver.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IProjectionReadModelBindingResolver
-{
-    ProjectionReadModelRequirements Resolve(
-        IReadOnlyDictionary<string, string> readModelBindings,
-        Type readModelType);
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelCapabilityValidator.cs
deleted file mode 100644
index 233f9c348..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelCapabilityValidator.cs
+++ /dev/null
@@ -1,13 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IProjectionReadModelCapabilityValidator
-{
-    IReadOnlyList<string> Validate(
-        ProjectionReadModelRequirements requirements,
-        ProjectionReadModelProviderCapabilities capabilities);
-
-    void EnsureSupported(
-        Type readModelType,
-        ProjectionReadModelRequirements requirements,
-        ProjectionReadModelProviderCapabilities capabilities);
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderRegistry.cs
deleted file mode 100644
index b127038b4..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderRegistry.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IProjectionReadModelProviderRegistry
-{
-    IReadOnlyList<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>> GetRegistrations<TReadModel, TKey>(
-        IServiceProvider serviceProvider)
-        where TReadModel : class;
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderSelector.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderSelector.cs
deleted file mode 100644
index c8beba36c..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelProviderSelector.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IProjectionReadModelProviderSelector
-{
-    IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>> Select<TReadModel, TKey>(
-        IReadOnlyList<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>> registrations,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements)
-        where TReadModel : class;
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs
deleted file mode 100644
index 3f7664892..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStore.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-/// <summary>
-/// Generic read-model store contract for projection state persistence/query.
-/// </summary>
-public interface IProjectionReadModelStore<TReadModel, in TKey>
-    : IDocumentProjectionStore<TReadModel, TKey>
-    where TReadModel : class;
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStoreFactory.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStoreFactory.cs
deleted file mode 100644
index 21d30fac8..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModelStoreFactory.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IProjectionReadModelStoreFactory
-{
-    IProjectionReadModelStore<TReadModel, TKey> Create<TReadModel, TKey>(
-        IServiceProvider serviceProvider,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements)
-        where TReadModel : class;
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelBindingException.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelBindingException.cs
deleted file mode 100644
index 9492a0d4b..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelBindingException.cs
+++ /dev/null
@@ -1,33 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public sealed class ProjectionReadModelBindingException : InvalidOperationException
-{
-    public ProjectionReadModelBindingException(
-        Type readModelType,
-        string bindingKey,
-        string bindingValue,
-        string reason)
-        : base(BuildMessage(readModelType, bindingKey, bindingValue, reason))
-    {
-        ReadModelType = readModelType;
-        BindingKey = bindingKey;
-        BindingValue = bindingValue;
-        Reason = reason;
-    }
-
-    public Type ReadModelType { get; }
-
-    public string BindingKey { get; }
-
-    public string BindingValue { get; }
-
-    public string Reason { get; }
-
-    private static string BuildMessage(
-        Type readModelType,
-        string bindingKey,
-        string bindingValue,
-        string reason) =>
-        $"Read-model binding is invalid for '{readModelType.FullName}'. " +
-        $"key='{bindingKey}', value='{bindingValue}', reason='{reason}'.";
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelIndexKind.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelIndexKind.cs
deleted file mode 100644
index 8f1c61aef..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelIndexKind.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public enum ProjectionReadModelIndexKind
-{
-    None = 0,
-    Document = 1,
-    Graph = 2,
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelMode.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelMode.cs
deleted file mode 100644
index 0ed8be4fe..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelMode.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public enum ProjectionReadModelMode
-{
-    CustomReadModel = 0,
-    DefaultReadModel = 1,
-    StateOnly = 2,
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs
deleted file mode 100644
index 3a17d6527..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRequirements.cs
+++ /dev/null
@@ -1,42 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public sealed class ProjectionReadModelRequirements
-{
-    private static readonly IReadOnlySet<ProjectionReadModelIndexKind> EmptyIndexKinds =
-        new HashSet<ProjectionReadModelIndexKind>();
-
-    public ProjectionReadModelRequirements(
-        bool requiresIndexing = false,
-        IEnumerable<ProjectionReadModelIndexKind>? requiredIndexKinds = null,
-        bool requiresAliases = false,
-        bool requiresSchemaValidation = false,
-        bool requiresRelations = false,
-        bool requiresRelationTraversal = false)
-    {
-        RequiresIndexing = requiresIndexing;
-        RequiresAliases = requiresAliases;
-        RequiresSchemaValidation = requiresSchemaValidation;
-        RequiresRelations = requiresRelations;
-        RequiresRelationTraversal = requiresRelationTraversal;
-
-        var normalizedIndexKinds = (requiredIndexKinds ?? [])
-            .Where(x => x != ProjectionReadModelIndexKind.None)
-            .ToHashSet();
-
-        RequiredIndexKinds = normalizedIndexKinds.Count == 0
-            ? EmptyIndexKinds
-            : normalizedIndexKinds;
-    }
-
-    public bool RequiresIndexing { get; }
-
-    public IReadOnlySet<ProjectionReadModelIndexKind> RequiredIndexKinds { get; }
-
-    public bool RequiresAliases { get; }
-
-    public bool RequiresSchemaValidation { get; }
-
-    public bool RequiresRelations { get; }
-
-    public bool RequiresRelationTraversal { get; }
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs
deleted file mode 100644
index 05704c7ba..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelRuntimeOptions.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public sealed class ProjectionReadModelRuntimeOptions : IProjectionStoreSelectionRuntimeOptions
-{
-    public ProjectionReadModelMode Mode { get; set; } = ProjectionReadModelMode.CustomReadModel;
-
-    public string DocumentProvider { get; set; } = ProjectionReadModelProviderNames.InMemory;
-
-    public string GraphProvider { get; set; } = ProjectionReadModelProviderNames.InMemory;
-
-    public bool FailOnUnsupportedCapabilities { get; set; } = true;
-
-    string IProjectionStoreSelectionRuntimeOptions.DocumentProvider => DocumentProvider;
-
-    string IProjectionStoreSelectionRuntimeOptions.GraphProvider => GraphProvider;
-
-    bool IProjectionStoreSelectionRuntimeOptions.FailOnUnsupportedCapabilities => FailOnUnsupportedCapabilities;
-
-    ProjectionReadModelMode IProjectionStoreSelectionRuntimeOptions.ReadModelMode => Mode;
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs
deleted file mode 100644
index 3a1a5c8ff..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionReadModelStoreSelector.cs
+++ /dev/null
@@ -1,23 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public static class ProjectionReadModelStoreSelector
-{
-    public static IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>> Select<TReadModel, TKey>(
-        IEnumerable<IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>> registrations,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements,
-        IProjectionReadModelCapabilityValidator? capabilityValidator = null)
-        where TReadModel : class
-    {
-        return ProjectionStoreSelector.Select<
-            IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>>>(
-            registrations,
-            selectionOptions,
-            requirements,
-            typeof(TReadModel),
-            noRegistrationsReason: "No provider registrations were found.",
-            multipleRegistrationsReason: "Multiple providers are registered but no explicit provider was requested.",
-            providerNotRegisteredReason: "Requested provider is not registered.",
-            capabilityValidator);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs
deleted file mode 100644
index ae32579ca..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStore.cs
+++ /dev/null
@@ -1,18 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IProjectionRelationStore
-{
-    Task UpsertNodeAsync(ProjectionRelationNode node, CancellationToken ct = default);
-
-    Task UpsertEdgeAsync(ProjectionRelationEdge edge, CancellationToken ct = default);
-
-    Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default);
-
-    Task<IReadOnlyList<ProjectionRelationEdge>> GetNeighborsAsync(
-        ProjectionRelationQuery query,
-        CancellationToken ct = default);
-
-    Task<ProjectionRelationSubgraph> GetSubgraphAsync(
-        ProjectionRelationQuery query,
-        CancellationToken ct = default);
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreFactory.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreFactory.cs
deleted file mode 100644
index ad2169f58..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreFactory.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IProjectionRelationStoreFactory
-{
-    IProjectionRelationStore Create(
-        IServiceProvider serviceProvider,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements);
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs
deleted file mode 100644
index 38ab2e4f0..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderRegistry.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IProjectionRelationStoreProviderRegistry
-{
-    IReadOnlyList<IProjectionStoreRegistration<IProjectionRelationStore>> GetRegistrations(IServiceProvider serviceProvider);
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderSelector.cs
deleted file mode 100644
index 868c36add..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/IProjectionRelationStoreProviderSelector.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IProjectionRelationStoreProviderSelector
-{
-    IProjectionStoreRegistration<IProjectionRelationStore> Select(
-        IReadOnlyList<IProjectionStoreRegistration<IProjectionRelationStore>> registrations,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements);
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs
deleted file mode 100644
index d73c16533..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Relations/ProjectionRelationSubgraph.cs
+++ /dev/null
@@ -1,14 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public sealed class ProjectionRelationSubgraph
-{
-    public ProjectionRelationSubgraph()
-    {
-        Nodes = [];
-        Edges = [];
-    }
-
-    public IReadOnlyList<ProjectionRelationNode> Nodes { get; set; }
-
-    public IReadOnlyList<ProjectionRelationEdge> Edges { get; set; }
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
deleted file mode 100644
index c7536b985..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IProjectionStoreStartupValidator
-{
-    IProjectionStoreRegistration<IProjectionReadModelStore<TReadModel, TKey>> ValidateReadModelProvider<TReadModel, TKey>(
-        IServiceProvider serviceProvider,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements)
-        where TReadModel : class;
-
-    IProjectionStoreRegistration<IProjectionRelationStore> ValidateRelationProvider(
-        IServiceProvider serviceProvider,
-        ProjectionReadModelStoreSelectionOptions selectionOptions,
-        ProjectionReadModelRequirements requirements);
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
deleted file mode 100644
index 49e3fa131..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public readonly record struct ProjectionStoreSelectionPlan(
-    ProjectionReadModelRequirements ReadModelRequirements,
-    ProjectionReadModelStoreSelectionOptions ReadModelSelectionOptions,
-    ProjectionReadModelRequirements RelationRequirements,
-    ProjectionReadModelStoreSelectionOptions RelationSelectionOptions);
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
index 140de72e9..469d450de 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
@@ -1,29 +1,22 @@
 # Aevatar.CQRS.Projection.Stores.Abstractions
 
-`Aevatar.CQRS.Projection.Stores.Abstractions` 只包含投影存储、能力声明、provider 选择与启动校验相关抽象。
+`Aevatar.CQRS.Projection.Stores.Abstractions` 只包含投影存储能力契约与读模型结构契约。
 
 ## 目录结构
 
-- `Abstractions/Core`：provider 元数据与通用注册契约（`IProjectionStoreRegistration<TStore>`）
-- `Abstractions/ReadModels`：ReadModel store/provider 能力、选择与校验抽象
-- `Abstractions/Relations`：Relation store/provider 与图关系模型抽象
-- `Abstractions/Selection`：跨 readmodel/relation 的统一选择计划与启动校验契约
+- `Abstractions/ReadModels`：读模型能力与文档存储契约
+- `Abstractions/Graphs`：图存储契约与图查询模型
 
 ## 包含内容
 
-- 读模型存储：`IProjectionReadModelStore<,>`
-- 关系存储：`IProjectionRelationStore`
+- 读模型存储：`IDocumentProjectionStore<,>`
+- 图存储：`IProjectionGraphStore`
 - ReadModel 能力模型：`IProjectionReadModel`、`IDocumentReadModel`、`IGraphReadModel`
-- 双写能力抽象：`IDocumentProjectionStore<,>`、`IGraphProjectionStore<>`、`IProjectionMaterializationRouter<,>`
-- 文档索引元数据抽象：`DocumentIndexMetadata`、`IReadModelDocumentMetadataProvider<TReadModel>`、`IProjectionDocumentMetadataResolver`
-- Provider 能力建模：`ProjectionReadModelProviderCapabilities`、`IProjectionStoreProviderMetadata`
-- 能力校验：`ProjectionReadModelRequirements`、`ProjectionReadModelCapabilityValidator`
-- Provider 注册与选择：`IProjectionStoreRegistration<TStore>`、`DelegateProjectionStoreRegistration<TStore>`
-- Provider Runtime 契约：`IProjectionReadModelProviderRegistry`、`IProjectionReadModelProviderSelector`、`IProjectionReadModelStoreFactory`
-- 选择编排：`IProjectionStoreSelectionPlanner`、`IProjectionStoreStartupValidator`
+- 文档索引元数据声明：`DocumentIndexMetadata`、`IProjectionDocumentMetadataProvider<TReadModel>`
+- 图结构描述：`GraphNodeDescriptor`、`GraphEdgeDescriptor`
 
 ## 约束
 
-1. 不包含投影主链路编排接口（这些在 `Aevatar.CQRS.Projection.Core.Abstractions`）。
-2. 不包含业务模型、DI 装配与具体 provider 实现。
-3. capability 声明必须与 provider 真实实现一致，不允许“声明支持但未实现”。
+1. 不包含 Provider 选择、Factory、Runtime options、Materialization Router 等运行时编排契约。
+2. 不包含投影主链路编排接口（这些在 `Aevatar.CQRS.Projection.Core.Abstractions`）。
+3. 不包含业务模型、DI 装配与具体 provider 实现。
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
index 3daf8f1e4..9b2714953 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionQueryPort.cs
@@ -19,23 +19,23 @@ Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
         int take = 200,
         CancellationToken ct = default);
 
-    Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+    Task<IReadOnlyList<WorkflowActorGraphEdge>> GetActorGraphEdgesAsync(
         string actorId,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default);
 
-    Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+    Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default);
 
     Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
index 3ba84833a..ce8012746 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/IWorkflowExecutionQueryApplicationService.cs
@@ -12,23 +12,23 @@ public interface IWorkflowExecutionQueryApplicationService
 
     Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(string actorId, int take = 200, CancellationToken ct = default);
 
-    Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
+    Task<IReadOnlyList<WorkflowActorGraphEdge>> ListActorGraphEdgesAsync(
         string actorId,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default);
 
-    Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+    Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default);
 
     Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
index 71a5d7443..b63c936ff 100644
--- a/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
+++ b/src/workflow/Aevatar.Workflow.Application.Abstractions/Queries/WorkflowExecutionQueryModels.cs
@@ -34,7 +34,7 @@ public sealed class WorkflowActorTimelineItem
     public Dictionary<string, string> Data { get; set; } = [];
 }
 
-public sealed class WorkflowActorRelationNode
+public sealed class WorkflowActorGraphNode
 {
     public string NodeId { get; set; } = string.Empty;
 
@@ -45,21 +45,21 @@ public sealed class WorkflowActorRelationNode
     public Dictionary<string, string> Properties { get; set; } = [];
 }
 
-public enum WorkflowActorRelationDirection
+public enum WorkflowActorGraphDirection
 {
     Outbound = 0,
     Inbound = 1,
     Both = 2,
 }
 
-public sealed class WorkflowActorRelationQueryOptions
+public sealed class WorkflowActorGraphQueryOptions
 {
-    public WorkflowActorRelationDirection Direction { get; set; } = WorkflowActorRelationDirection.Both;
+    public WorkflowActorGraphDirection Direction { get; set; } = WorkflowActorGraphDirection.Both;
 
-    public IReadOnlyList<string> RelationTypes { get; set; } = [];
+    public IReadOnlyList<string> EdgeTypes { get; set; } = [];
 }
 
-public sealed class WorkflowActorRelationItem
+public sealed class WorkflowActorGraphEdge
 {
     public string EdgeId { get; set; } = string.Empty;
 
@@ -67,27 +67,27 @@ public sealed class WorkflowActorRelationItem
 
     public string ToNodeId { get; set; } = string.Empty;
 
-    public string RelationType { get; set; } = string.Empty;
+    public string EdgeType { get; set; } = string.Empty;
 
     public DateTimeOffset UpdatedAt { get; set; }
 
     public Dictionary<string, string> Properties { get; set; } = [];
 }
 
-public sealed class WorkflowActorRelationSubgraph
+public sealed class WorkflowActorGraphSubgraph
 {
     public string RootNodeId { get; set; } = string.Empty;
 
-    public List<WorkflowActorRelationNode> Nodes { get; set; } = [];
+    public List<WorkflowActorGraphNode> Nodes { get; set; } = [];
 
-    public List<WorkflowActorRelationItem> Edges { get; set; } = [];
+    public List<WorkflowActorGraphEdge> Edges { get; set; } = [];
 }
 
 public sealed class WorkflowActorGraphEnrichedSnapshot
 {
     public WorkflowActorSnapshot Snapshot { get; set; } = new();
 
-    public WorkflowActorRelationSubgraph Subgraph { get; set; } = new();
+    public WorkflowActorGraphSubgraph Subgraph { get; set; } = new();
 }
 
 public sealed record WorkflowTopologyEdge(string Parent, string Child);
diff --git a/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs b/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
index d0e0a68bc..a1c6193d9 100644
--- a/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
+++ b/src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs
@@ -55,39 +55,39 @@ public async Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsy
         return await _projectionPort.ListActorTimelineAsync(actorId, take, ct);
     }
 
-    public async Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
+    public async Task<IReadOnlyList<WorkflowActorGraphEdge>> ListActorGraphEdgesAsync(
         string actorId,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default)
     {
         if (!ActorQueryEnabled || string.IsNullOrWhiteSpace(actorId))
             return [];
 
-        return await _projectionPort.GetActorRelationsAsync(actorId, take, options, ct);
+        return await _projectionPort.GetActorGraphEdgesAsync(actorId, take, options, ct);
     }
 
-    public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+    public async Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default)
     {
         if (!ActorQueryEnabled || string.IsNullOrWhiteSpace(actorId))
-            return new WorkflowActorRelationSubgraph
+            return new WorkflowActorGraphSubgraph
             {
                 RootNodeId = actorId ?? string.Empty,
             };
 
-        return await _projectionPort.GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
+        return await _projectionPort.GetActorGraphSubgraphAsync(actorId, depth, take, options, ct);
     }
 
     public async Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default)
     {
         if (!ActorQueryEnabled || string.IsNullOrWhiteSpace(actorId))
diff --git a/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs b/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
index 74a59399f..fe3fa4ccc 100644
--- a/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
+++ b/src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs
@@ -22,10 +22,10 @@ public static void Map(RouteGroupBuilder group)
         group.MapGet("/actors/{actorId}/timeline", ListActorTimeline)
             .Produces(StatusCodes.Status200OK);
 
-        group.MapGet("/actors/{actorId}/relations", ListActorRelations)
+        group.MapGet("/actors/{actorId}/graph-edges", ListActorGraphEdges)
             .Produces(StatusCodes.Status200OK);
 
-        group.MapGet("/actors/{actorId}/relation-subgraph", GetActorRelationSubgraph)
+        group.MapGet("/actors/{actorId}/graph-subgraph", GetActorGraphSubgraph)
             .Produces(StatusCodes.Status200OK);
 
         group.MapGet("/actors/{actorId}/graph-enriched", GetActorGraphEnrichedSnapshot)
@@ -63,30 +63,30 @@ internal static async Task<IResult> ListActorTimeline(
         return Results.Ok(timeline);
     }
 
-    internal static async Task<IResult> ListActorRelations(
+    internal static async Task<IResult> ListActorGraphEdges(
         string actorId,
         IWorkflowExecutionQueryApplicationService queryService,
         int take = 200,
         string? direction = null,
-        string[]? relationTypes = null,
+        string[]? edgeTypes = null,
         CancellationToken ct = default)
     {
-        var relationOptions = BuildRelationQueryOptions(direction, relationTypes);
-        var relations = await queryService.ListActorRelationsAsync(actorId, take, relationOptions, ct);
-        return Results.Ok(relations);
+        var graphOptions = BuildGraphQueryOptions(direction, edgeTypes);
+        var edges = await queryService.ListActorGraphEdgesAsync(actorId, take, graphOptions, ct);
+        return Results.Ok(edges);
     }
 
-    internal static async Task<IResult> GetActorRelationSubgraph(
+    internal static async Task<IResult> GetActorGraphSubgraph(
         string actorId,
         IWorkflowExecutionQueryApplicationService queryService,
         int depth = 2,
         int take = 200,
         string? direction = null,
-        string[]? relationTypes = null,
+        string[]? edgeTypes = null,
         CancellationToken ct = default)
     {
-        var relationOptions = BuildRelationQueryOptions(direction, relationTypes);
-        var subgraph = await queryService.GetActorRelationSubgraphAsync(actorId, depth, take, relationOptions, ct);
+        var graphOptions = BuildGraphQueryOptions(direction, edgeTypes);
+        var subgraph = await queryService.GetActorGraphSubgraphAsync(actorId, depth, take, graphOptions, ct);
         return Results.Ok(subgraph);
     }
 
@@ -96,41 +96,41 @@ internal static async Task<IResult> GetActorGraphEnrichedSnapshot(
         int depth = 2,
         int take = 200,
         string? direction = null,
-        string[]? relationTypes = null,
+        string[]? edgeTypes = null,
         CancellationToken ct = default)
     {
-        var relationOptions = BuildRelationQueryOptions(direction, relationTypes);
-        var graphEnriched = await queryService.GetActorGraphEnrichedSnapshotAsync(actorId, depth, take, relationOptions, ct);
+        var graphOptions = BuildGraphQueryOptions(direction, edgeTypes);
+        var graphEnriched = await queryService.GetActorGraphEnrichedSnapshotAsync(actorId, depth, take, graphOptions, ct);
         return graphEnriched == null ? Results.NotFound() : Results.Ok(graphEnriched);
     }
 
-    private static WorkflowActorRelationQueryOptions BuildRelationQueryOptions(
+    private static WorkflowActorGraphQueryOptions BuildGraphQueryOptions(
         string? direction,
-        string[]? relationTypes)
+        string[]? edgeTypes)
     {
-        return new WorkflowActorRelationQueryOptions
+        return new WorkflowActorGraphQueryOptions
         {
             Direction = ParseDirection(direction),
-            RelationTypes = NormalizeRelationTypes(relationTypes),
+            EdgeTypes = NormalizeEdgeTypes(edgeTypes),
         };
     }
 
-    private static WorkflowActorRelationDirection ParseDirection(string? direction)
+    private static WorkflowActorGraphDirection ParseDirection(string? direction)
     {
         if (string.IsNullOrWhiteSpace(direction))
-            return WorkflowActorRelationDirection.Both;
+            return WorkflowActorGraphDirection.Both;
 
-        return Enum.TryParse<WorkflowActorRelationDirection>(direction.Trim(), ignoreCase: true, out var parsed)
+        return Enum.TryParse<WorkflowActorGraphDirection>(direction.Trim(), ignoreCase: true, out var parsed)
             ? parsed
-            : WorkflowActorRelationDirection.Both;
+            : WorkflowActorGraphDirection.Both;
     }
 
-    private static IReadOnlyList<string> NormalizeRelationTypes(IReadOnlyList<string>? relationTypes)
+    private static IReadOnlyList<string> NormalizeEdgeTypes(IReadOnlyList<string>? edgeTypes)
     {
-        if (relationTypes == null || relationTypes.Count == 0)
+        if (edgeTypes == null || edgeTypes.Count == 0)
             return [];
 
-        return relationTypes
+        return edgeTypes
             .Select(x => x?.Trim() ?? "")
             .Where(x => x.Length > 0)
             .Distinct(StringComparer.Ordinal)
diff --git a/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj b/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
index 52f16ff40..20b569e21 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
+++ b/src/workflow/Aevatar.Workflow.Projection/Aevatar.Workflow.Projection.csproj
@@ -10,6 +10,7 @@
     <ProjectReference Include="..\Aevatar.Workflow.Application.Abstractions\Aevatar.Workflow.Application.Abstractions.csproj" />
     <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
     <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
+    <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Runtime.Abstractions\Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
     <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
     <ProjectReference Include="..\..\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
     <ProjectReference Include="..\..\Aevatar.Foundation.Projection\Aevatar.Foundation.Projection.csproj" />
diff --git a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
index a9b3d1cc0..e3cd50ed4 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
@@ -41,10 +41,10 @@ public bool EnableRunQueryEndpoints
     /// <summary>
     /// Whether to pre-validate read-model provider selection and capabilities during host startup.
     /// </summary>
-    public bool ValidateReadModelProviderOnStartup { get; set; } = true;
+    public bool ValidateDocumentProviderOnStartup { get; set; } = true;
 
     /// <summary>
-    /// Whether to pre-validate relation provider selection and capabilities during host startup.
+    /// Whether to pre-validate graph provider selection and capabilities during host startup.
     /// </summary>
-    public bool ValidateRelationProviderOnStartup { get; set; } = true;
+    public bool ValidateGraphProviderOnStartup { get; set; } = true;
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index 52e9ce1d7..a8137bac1 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -37,12 +37,12 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.Replace(ServiceDescriptor.Singleton(options));
         services.TryAddSingleton<IProjectionRuntimeOptions>(sp =>
             sp.GetRequiredService<WorkflowExecutionProjectionOptions>());
-        services.TryAddSingleton<ProjectionReadModelRuntimeOptions>();
+        services.TryAddSingleton<ProjectionStoreRuntimeOptions>();
         services.TryAddSingleton<IProjectionStoreSelectionRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionReadModelRuntimeOptions>());
+            sp.GetRequiredService<ProjectionStoreRuntimeOptions>());
         services.TryAddSingleton<IEventDeduplicator, PassthroughEventDeduplicator>();
         services.AddProjectionReadModelRuntime();
-        services.TryAddSingleton<IReadModelDocumentMetadataProvider<WorkflowExecutionReport>, WorkflowExecutionReportDocumentMetadataProvider>();
+        services.TryAddSingleton<IProjectionDocumentMetadataProvider<WorkflowExecutionReport>, WorkflowExecutionReportDocumentMetadataProvider>();
         RegisterWorkflowDocumentStoreSelector(services);
         RegisterWorkflowGraphStoreSelector(services);
         RegisterWorkflowMaterializationRouter(services);
@@ -125,37 +125,30 @@ private static void RegisterFromAssembly(IServiceCollection services, Assembly a
 
     private static void RegisterWorkflowDocumentStoreSelector(IServiceCollection services)
     {
-        services.Replace(ServiceDescriptor.Singleton<IProjectionReadModelStore<WorkflowExecutionReport, string>>(sp =>
+        services.Replace(ServiceDescriptor.Singleton<IDocumentProjectionStore<WorkflowExecutionReport, string>>(sp =>
         {
-            var storeFactory = sp.GetRequiredService<IProjectionReadModelStoreFactory>();
+            var storeFactory = sp.GetRequiredService<IProjectionDocumentStoreFactory>();
             var selectionPlan = BuildSelectionPlan(sp);
 
             return storeFactory.Create<WorkflowExecutionReport, string>(
                 sp,
-                selectionPlan.ReadModelSelectionOptions,
-                selectionPlan.ReadModelRequirements);
+                selectionPlan.DocumentSelectionOptions,
+                selectionPlan.DocumentRequirements);
         }));
-
-        services.Replace(ServiceDescriptor.Singleton<IDocumentProjectionStore<WorkflowExecutionReport, string>>(sp =>
-            sp.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>()));
     }
 
     private static void RegisterWorkflowGraphStoreSelector(IServiceCollection services)
     {
-        services.Replace(ServiceDescriptor.Singleton<IProjectionRelationStore>(sp =>
+        services.Replace(ServiceDescriptor.Singleton<IProjectionGraphStore>(sp =>
         {
-            var relationStoreFactory = sp.GetRequiredService<IProjectionRelationStoreFactory>();
+            var graphStoreFactory = sp.GetRequiredService<IProjectionGraphStoreFactory>();
             var selectionPlan = BuildSelectionPlan(sp);
 
-            return relationStoreFactory.Create(
+            return graphStoreFactory.Create(
                 sp,
-                selectionPlan.RelationSelectionOptions,
-                selectionPlan.RelationRequirements);
+                selectionPlan.GraphSelectionOptions,
+                selectionPlan.GraphRequirements);
         }));
-
-        services.Replace(ServiceDescriptor.Singleton<IGraphProjectionStore<WorkflowExecutionReport>>(sp =>
-            new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(
-                sp.GetRequiredService<IProjectionRelationStore>())));
     }
 
     private static void RegisterWorkflowMaterializationRouter(IServiceCollection services)
@@ -163,7 +156,7 @@ private static void RegisterWorkflowMaterializationRouter(IServiceCollection ser
         services.Replace(ServiceDescriptor.Singleton<IProjectionMaterializationRouter<WorkflowExecutionReport, string>>(sp =>
             new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
                 sp.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>(),
-                sp.GetRequiredService<IGraphProjectionStore<WorkflowExecutionReport>>())));
+                sp.GetRequiredService<IProjectionGraphMaterializer<WorkflowExecutionReport>>())));
     }
 
     private static ProjectionStoreSelectionPlan BuildSelectionPlan(IServiceProvider serviceProvider)
@@ -173,7 +166,7 @@ private static ProjectionStoreSelectionPlan BuildSelectionPlan(IServiceProvider
         return selectionPlanner.Build(
             runtimeOptions,
             typeof(WorkflowExecutionReport),
-            new ProjectionReadModelRequirements());
+            new ProjectionStoreRequirements());
     }
 
     private sealed class PassthroughEventDeduplicator : IEventDeduplicator
diff --git a/src/workflow/Aevatar.Workflow.Projection/GlobalUsings.cs b/src/workflow/Aevatar.Workflow.Projection/GlobalUsings.cs
index 263294b8a..816391d30 100644
--- a/src/workflow/Aevatar.Workflow.Projection/GlobalUsings.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/GlobalUsings.cs
@@ -1,5 +1,6 @@
 global using Aevatar.CQRS.Projection.Core.Abstractions;
 global using Aevatar.CQRS.Projection.Stores.Abstractions;
+global using Aevatar.CQRS.Projection.Runtime.Abstractions;
 global using Aevatar.Workflow.Projection.ReadModels;
 global using Aevatar.Foundation.Abstractions;
 global using Aevatar.Workflow.Abstractions;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs b/src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs
index e61a80954..a63f76d64 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs
@@ -3,7 +3,7 @@
 namespace Aevatar.Workflow.Projection.Metadata;
 
 public sealed class WorkflowExecutionReportDocumentMetadataProvider
-    : IReadModelDocumentMetadataProvider<WorkflowExecutionReport>
+    : IProjectionDocumentMetadataProvider<WorkflowExecutionReport>
 {
     public DocumentIndexMetadata Metadata { get; } = new(
         IndexName: "workflow-execution-reports",
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
index 59f6eae73..507c16ac3 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionQueryReader.cs
@@ -17,23 +17,23 @@ Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
         int take = 200,
         CancellationToken ct = default);
 
-    Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+    Task<IReadOnlyList<WorkflowActorGraphEdge>> GetActorGraphEdgesAsync(
         string actorId,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default);
 
-    Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+    Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default);
 
     Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default);
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
index 96e263352..924fbdafc 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs
@@ -6,7 +6,7 @@
 namespace Aevatar.Workflow.Projection.Orchestration;
 
 public sealed class WorkflowExecutionProjectionQueryService
-    : ProjectionQueryPortServiceBase<WorkflowActorSnapshot, WorkflowActorTimelineItem, WorkflowActorRelationItem, WorkflowActorRelationSubgraph>,
+    : ProjectionQueryPortServiceBase<WorkflowActorSnapshot, WorkflowActorTimelineItem, WorkflowActorGraphEdge, WorkflowActorGraphSubgraph>,
       IWorkflowExecutionProjectionQueryPort
 {
     private readonly IWorkflowProjectionQueryReader _queryReader;
@@ -37,26 +37,26 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
         CancellationToken ct = default) =>
         ListTimelineAsync(actorId, take, ct);
 
-    public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+    public Task<IReadOnlyList<WorkflowActorGraphEdge>> GetActorGraphEdgesAsync(
         string actorId,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default) =>
-        GetRelationsInternalAsync(actorId, take, options, ct);
+        GetGraphEdgesInternalAsync(actorId, take, options, ct);
 
-    public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+    public Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default) =>
-        GetRelationSubgraphInternalAsync(actorId, depth, take, options, ct);
+        GetGraphSubgraphInternalAsync(actorId, depth, take, options, ct);
 
     public Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default) =>
         GetGraphEnrichedInternalAsync(actorId, depth, take, options, ct);
 
@@ -76,57 +76,57 @@ protected override Task<IReadOnlyList<WorkflowActorTimelineItem>> ReadTimelineCo
         CancellationToken ct)
         => _queryReader.ListActorTimelineAsync(entityId, take, ct);
 
-    protected override Task<IReadOnlyList<WorkflowActorRelationItem>> ReadRelationsCoreAsync(
+    protected override Task<IReadOnlyList<WorkflowActorGraphEdge>> ReadGraphEdgesCoreAsync(
         string entityId,
         int take,
         CancellationToken ct)
-        => _queryReader.GetActorRelationsAsync(entityId, take, options: null, ct);
+        => _queryReader.GetActorGraphEdgesAsync(entityId, take, options: null, ct);
 
-    protected override Task<WorkflowActorRelationSubgraph> ReadRelationSubgraphCoreAsync(
+    protected override Task<WorkflowActorGraphSubgraph> ReadGraphSubgraphCoreAsync(
         string entityId,
         int depth,
         int take,
         CancellationToken ct)
-        => _queryReader.GetActorRelationSubgraphAsync(entityId, depth, take, options: null, ct);
+        => _queryReader.GetActorGraphSubgraphAsync(entityId, depth, take, options: null, ct);
 
-    protected override WorkflowActorRelationSubgraph CreateEmptyRelationSubgraph(string entityId)
+    protected override WorkflowActorGraphSubgraph CreateEmptyGraphSubgraph(string entityId)
     {
-        return new WorkflowActorRelationSubgraph
+        return new WorkflowActorGraphSubgraph
         {
             RootNodeId = entityId ?? string.Empty,
         };
     }
 
-    private async Task<IReadOnlyList<WorkflowActorRelationItem>> GetRelationsInternalAsync(
+    private async Task<IReadOnlyList<WorkflowActorGraphEdge>> GetGraphEdgesInternalAsync(
         string actorId,
         int take,
-        WorkflowActorRelationQueryOptions? options,
+        WorkflowActorGraphQueryOptions? options,
         CancellationToken ct)
     {
         if (!QueryEnabledCore || string.IsNullOrWhiteSpace(actorId))
             return [];
 
-        return await _queryReader.GetActorRelationsAsync(actorId, take, options, ct);
+        return await _queryReader.GetActorGraphEdgesAsync(actorId, take, options, ct);
     }
 
-    private async Task<WorkflowActorRelationSubgraph> GetRelationSubgraphInternalAsync(
+    private async Task<WorkflowActorGraphSubgraph> GetGraphSubgraphInternalAsync(
         string actorId,
         int depth,
         int take,
-        WorkflowActorRelationQueryOptions? options,
+        WorkflowActorGraphQueryOptions? options,
         CancellationToken ct)
     {
         if (!QueryEnabledCore || string.IsNullOrWhiteSpace(actorId))
-            return CreateEmptyRelationSubgraph(actorId);
+            return CreateEmptyGraphSubgraph(actorId);
 
-        return await _queryReader.GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
+        return await _queryReader.GetActorGraphSubgraphAsync(actorId, depth, take, options, ct);
     }
 
     private async Task<WorkflowActorGraphEnrichedSnapshot?> GetGraphEnrichedInternalAsync(
         string actorId,
         int depth,
         int take,
-        WorkflowActorRelationQueryOptions? options,
+        WorkflowActorGraphQueryOptions? options,
         CancellationToken ct)
     {
         if (!QueryEnabledCore || string.IsNullOrWhiteSpace(actorId))
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
index d9da2d3c1..bfef488f1 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
@@ -6,13 +6,13 @@ namespace Aevatar.Workflow.Projection.Orchestration;
 public sealed class WorkflowProjectionQueryReader : IWorkflowProjectionQueryReader
 {
     private readonly IDocumentProjectionStore<WorkflowExecutionReport, string> _documentStore;
-    private readonly IGraphProjectionStore<WorkflowExecutionReport> _graphStore;
+    private readonly IProjectionGraphStore _graphStore;
     private readonly WorkflowExecutionReadModelMapper _mapper;
 
     public WorkflowProjectionQueryReader(
         IDocumentProjectionStore<WorkflowExecutionReport, string> documentStore,
         WorkflowExecutionReadModelMapper mapper,
-        IGraphProjectionStore<WorkflowExecutionReport> graphStore)
+        IProjectionGraphStore graphStore)
     {
         _documentStore = documentStore;
         _mapper = mapper;
@@ -55,10 +55,10 @@ public async Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsy
             .ToList();
     }
 
-    public async Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+    public async Task<IReadOnlyList<WorkflowActorGraphEdge>> GetActorGraphEdgesAsync(
         string actorId,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default)
     {
         var actorIdValue = actorId?.Trim() ?? "";
@@ -66,62 +66,62 @@ public async Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsy
             return [];
 
         var boundedTake = Math.Clamp(take, 1, 1000);
-        var direction = MapDirection(options?.Direction ?? WorkflowActorRelationDirection.Both);
-        var relationTypes = NormalizeRelationTypes(options?.RelationTypes);
+        var direction = MapDirection(options?.Direction ?? WorkflowActorGraphDirection.Both);
+        var edgeTypes = NormalizeEdgeTypes(options?.EdgeTypes);
         var edges = await _graphStore.GetNeighborsAsync(
-            new ProjectionRelationQuery
+            new ProjectionGraphQuery
             {
-                Scope = WorkflowExecutionRelationConstants.Scope,
+                Scope = WorkflowExecutionGraphConstants.Scope,
                 RootNodeId = actorIdValue,
                 Direction = direction,
-                RelationTypes = relationTypes,
+                EdgeTypes = edgeTypes,
                 Take = boundedTake,
             },
             ct);
-        return edges.Select(_mapper.ToActorRelationItem).ToList();
+        return edges.Select(_mapper.ToActorGraphEdge).ToList();
     }
 
-    public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+    public async Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default)
     {
         var actorIdValue = actorId?.Trim() ?? "";
         if (actorIdValue.Length == 0)
-            return new WorkflowActorRelationSubgraph();
+            return new WorkflowActorGraphSubgraph();
 
         var boundedDepth = Math.Clamp(depth, 1, 8);
         var boundedTake = Math.Clamp(take, 1, 2000);
-        var direction = MapDirection(options?.Direction ?? WorkflowActorRelationDirection.Both);
-        var relationTypes = NormalizeRelationTypes(options?.RelationTypes);
+        var direction = MapDirection(options?.Direction ?? WorkflowActorGraphDirection.Both);
+        var edgeTypes = NormalizeEdgeTypes(options?.EdgeTypes);
         var subgraph = await _graphStore.GetSubgraphAsync(
-            new ProjectionRelationQuery
+            new ProjectionGraphQuery
             {
-                Scope = WorkflowExecutionRelationConstants.Scope,
+                Scope = WorkflowExecutionGraphConstants.Scope,
                 RootNodeId = actorIdValue,
                 Direction = direction,
-                RelationTypes = relationTypes,
+                EdgeTypes = edgeTypes,
                 Depth = boundedDepth,
                 Take = boundedTake,
             },
             ct);
-        return _mapper.ToActorRelationSubgraph(actorIdValue, subgraph);
+        return _mapper.ToActorGraphSubgraph(actorIdValue, subgraph);
     }
 
     public async Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default)
     {
         var snapshot = await GetActorSnapshotAsync(actorId, ct);
         if (snapshot == null)
             return null;
 
-        var subgraph = await GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
+        var subgraph = await GetActorGraphSubgraphAsync(actorId, depth, take, options, ct);
         return new WorkflowActorGraphEnrichedSnapshot
         {
             Snapshot = snapshot,
@@ -129,22 +129,22 @@ public async Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         };
     }
 
-    private static ProjectionRelationDirection MapDirection(WorkflowActorRelationDirection direction)
+    private static ProjectionGraphDirection MapDirection(WorkflowActorGraphDirection direction)
     {
         return direction switch
         {
-            WorkflowActorRelationDirection.Outbound => ProjectionRelationDirection.Outbound,
-            WorkflowActorRelationDirection.Inbound => ProjectionRelationDirection.Inbound,
-            _ => ProjectionRelationDirection.Both,
+            WorkflowActorGraphDirection.Outbound => ProjectionGraphDirection.Outbound,
+            WorkflowActorGraphDirection.Inbound => ProjectionGraphDirection.Inbound,
+            _ => ProjectionGraphDirection.Both,
         };
     }
 
-    private static IReadOnlyList<string> NormalizeRelationTypes(IReadOnlyList<string>? relationTypes)
+    private static IReadOnlyList<string> NormalizeEdgeTypes(IReadOnlyList<string>? edgeTypes)
     {
-        if (relationTypes == null || relationTypes.Count == 0)
+        if (edgeTypes == null || edgeTypes.Count == 0)
             return [];
 
-        return relationTypes
+        return edgeTypes
             .Select(x => x?.Trim() ?? "")
             .Where(x => x.Length > 0)
             .Distinct(StringComparer.Ordinal)
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index 7e9b26ada..9420fffbe 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -41,30 +41,30 @@ public Task StartAsync(CancellationToken cancellationToken)
         var selectionPlan = _selectionPlanner.Build(
             _selectionRuntimeOptions,
             typeof(WorkflowExecutionReport),
-            new ProjectionReadModelRequirements());
+            new ProjectionStoreRequirements());
 
-        if (_options.ValidateReadModelProviderOnStartup)
+        if (_options.ValidateDocumentProviderOnStartup)
         {
-            var selectedReadModelProvider = _startupValidator.ValidateReadModelProvider<WorkflowExecutionReport, string>(
+            var selectedDocumentProvider = _startupValidator.ValidateDocumentProvider<WorkflowExecutionReport, string>(
                 _serviceProvider,
-                selectionPlan.ReadModelSelectionOptions,
-                selectionPlan.ReadModelRequirements);
+                selectionPlan.DocumentSelectionOptions,
+                selectionPlan.DocumentRequirements);
             _logger.LogInformation(
                 "Workflow read-model provider startup validation passed. readModelType={ReadModelType} provider={Provider}",
                 typeof(WorkflowExecutionReport).FullName,
-                selectedReadModelProvider.ProviderName);
+                selectedDocumentProvider.ProviderName);
         }
 
-        if (_options.ValidateRelationProviderOnStartup)
+        if (_options.ValidateGraphProviderOnStartup)
         {
-            var selectedRelationProvider = _startupValidator.ValidateRelationProvider(
+            var selectedGraphProvider = _startupValidator.ValidateGraphProvider(
                 _serviceProvider,
-                selectionPlan.RelationSelectionOptions,
-                selectionPlan.RelationRequirements);
+                selectionPlan.GraphSelectionOptions,
+                selectionPlan.GraphRequirements);
             _logger.LogInformation(
-                "Workflow relation provider startup validation passed. relationType={RelationType} provider={Provider}",
-                typeof(ProjectionRelationNode).FullName,
-                selectedRelationProvider.ProviderName);
+                "Workflow graph provider startup validation passed. graphType={GraphType} provider={Provider}",
+                typeof(ProjectionGraphNode).FullName,
+                selectedGraphProvider.ProviderName);
         }
         return Task.CompletedTask;
     }
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index f30838fcc..fb71a1151 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -6,7 +6,7 @@
 
 - 应用层投影端口实现：
   - `IWorkflowExecutionProjectionLifecyclePort`（`Ensure/Attach/Detach/Release`）
-  - `IWorkflowExecutionProjectionQueryPort`（`Snapshot/Timeline/Relations/Subgraph/GraphEnriched`）
+  - `IWorkflowExecutionProjectionQueryPort`（`Snapshot/Timeline/GraphEdges/GraphSubgraph/GraphEnriched`）
   - 默认实现分别为 `WorkflowExecutionProjectionLifecycleService` 与 `WorkflowExecutionProjectionQueryService`
   - 两个实现分别继承 `ProjectionLifecyclePortServiceBase` / `ProjectionQueryPortServiceBase`，通用端口编排已下沉到 `Aevatar.CQRS.Projection.Core`
 - 编排组件拆分（避免单类过重）：
@@ -23,13 +23,14 @@
 - 实时输出契约：`WorkflowRunEvent`、`IWorkflowRunEventSink`、`WorkflowRunEventChannel`（定义于 `Aevatar.Workflow.Application.Abstractions`）
 - 领域投影实现：reducers、projectors、read model（不包含 Provider Store 实现）
 - 领域 DI 组合：`AddWorkflowExecutionProjectionCQRS(...)`
-- Provider 能力校验：启动期由 `WorkflowReadModelStartupValidationHostedService` 预校验，运行时选择阶段继续按 `ProjectionReadModelCapabilityValidator` 校验
+- Provider 能力校验：启动期由 `WorkflowReadModelStartupValidationHostedService` 预校验，运行时选择阶段继续按 `ProjectionProviderCapabilityValidator` 校验
 - ReadModel 选择规则统一：DI store 解析与 Startup validation 均复用 `IProjectionStoreSelectionPlanner + IProjectionStoreSelectionRuntimeOptions`，避免双处规则漂移
 
 本项目依赖：
 
 - `Aevatar.CQRS.Projection.Core.Abstractions`（投影管线/端口抽象）
-- `Aevatar.CQRS.Projection.Stores.Abstractions`（ReadModel/Relation/选择抽象）
+- `Aevatar.CQRS.Projection.Stores.Abstractions`（Document/Graph 存储契约）
+- `Aevatar.CQRS.Projection.Runtime.Abstractions`（Provider 选择与 materialization 编排契约）
 - `Aevatar.CQRS.Projection.Core`（通用生命周期/订阅/协调实现）
 - `Aevatar.Foundation.Projection`（最小 read model 基类与读侧能力接口）
 - `Aevatar.Workflow.Extensions.AIProjection`（可选扩展：组合 `Aevatar.AI.Projection` 的通用 reducer/applier）
@@ -82,8 +83,8 @@ FAQ：
   - 实现 `IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>`
   - 在 DI 中注册
 - 扩展 ReadModel Provider（推荐）：
-  - 文档存储注册：`IProjectionStoreRegistration<IProjectionReadModelStore<WorkflowExecutionReport, string>>`
-  - 图存储注册：`IProjectionStoreRegistration<IProjectionRelationStore>`
+  - 文档存储注册：`IProjectionStoreRegistration<IDocumentProjectionStore<WorkflowExecutionReport, string>>`
+  - 图存储注册：`IProjectionStoreRegistration<IProjectionGraphStore>`
   - 在 Host/Extensions 侧注册（例如 `Aevatar.Workflow.Extensions.Hosting.AddWorkflowProjectionReadModelProviders(...)`）
   - 通过 `Projection:Document:*` 与 `Projection:Graph:*` 配置选择 Provider
 
@@ -98,12 +99,12 @@ FAQ：
   - `Projection:Document:Providers:Neo4j:*`
 - 图 Provider 配置：
   - `Projection:Graph:Providers:Neo4j:*`
-- `WorkflowExecutionProjection:ValidateReadModelProviderOnStartup`：启动阶段预校验 document provider（默认 `true`）
-- `WorkflowExecutionProjection:ValidateRelationProviderOnStartup`：启动阶段预校验 graph provider（默认 `true`）
-- 关系查询参数：
-  - `/actors/{actorId}/relations` 支持 `direction` 与 `relationTypes`
-  - `/actors/{actorId}/relation-subgraph` 支持 `direction` 与 `relationTypes`
-  - `/actors/{actorId}/graph-enriched` 支持 `direction` 与 `relationTypes`
+- `WorkflowExecutionProjection:ValidateDocumentProviderOnStartup`：启动阶段预校验 document provider（默认 `true`）
+- `WorkflowExecutionProjection:ValidateGraphProviderOnStartup`：启动阶段预校验 graph provider（默认 `true`）
+- 图查询参数：
+  - `/actors/{actorId}/graph-edges` 支持 `direction` 与 `edgeTypes`
+  - `/actors/{actorId}/graph-subgraph` 支持 `direction` 与 `edgeTypes`
+  - `/actors/{actorId}/graph-enriched` 支持 `direction` 与 `edgeTypes`
 - 扩展 run 输出协议：
   - 保持 `WorkflowRunEvent` 不变，新增 presentation adapter 进行协议映射
   - 不改 Application 用例编排代码
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionGraphConstants.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionGraphConstants.cs
new file mode 100644
index 000000000..0d15cd44d
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionGraphConstants.cs
@@ -0,0 +1,18 @@
+namespace Aevatar.Workflow.Projection.ReadModels;
+
+public static class WorkflowExecutionGraphConstants
+{
+    public const string Scope = "workflow-execution-graph";
+
+    public const string ActorNodeType = "Actor";
+
+    public const string RunNodeType = "WorkflowRun";
+
+    public const string StepNodeType = "WorkflowStep";
+
+    public const string EdgeTypeOwns = "OWNS";
+
+    public const string EdgeTypeContainsStep = "CONTAINS_STEP";
+
+    public const string EdgeTypeChildOf = "CHILD_OF";
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
index f2da8ddd3..35c97bc30 100644
--- a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
@@ -40,7 +40,7 @@ public sealed class WorkflowExecutionReport
 
     public string DocumentScope => "workflow-execution-reports";
 
-    public string GraphScope => WorkflowExecutionRelationConstants.Scope;
+    public string GraphScope => WorkflowExecutionGraphConstants.Scope;
 
     public IReadOnlyList<GraphNodeDescriptor> GraphNodes => BuildGraphNodes();
 
@@ -106,7 +106,7 @@ private IReadOnlyList<GraphNodeDescriptor> BuildGraphNodes()
 
         nodes[rootActorId] = new GraphNodeDescriptor(
             rootActorId,
-            WorkflowExecutionRelationConstants.ActorNodeType,
+            WorkflowExecutionGraphConstants.ActorNodeType,
             new Dictionary<string, string>(StringComparer.Ordinal)
             {
                 ["workflowName"] = WorkflowName ?? "",
@@ -115,7 +115,7 @@ private IReadOnlyList<GraphNodeDescriptor> BuildGraphNodes()
 
         nodes[runNodeId] = new GraphNodeDescriptor(
             runNodeId,
-            WorkflowExecutionRelationConstants.RunNodeType,
+            WorkflowExecutionGraphConstants.RunNodeType,
             new Dictionary<string, string>(StringComparer.Ordinal)
             {
                 ["rootActorId"] = rootActorId,
@@ -130,7 +130,7 @@ private IReadOnlyList<GraphNodeDescriptor> BuildGraphNodes()
             var stepNodeId = BuildStepNodeId(rootActorId, CommandId, step.StepId);
             nodes[stepNodeId] = new GraphNodeDescriptor(
                 stepNodeId,
-                WorkflowExecutionRelationConstants.StepNodeType,
+                WorkflowExecutionGraphConstants.StepNodeType,
                 new Dictionary<string, string>(StringComparer.Ordinal)
                 {
                     ["rootActorId"] = rootActorId,
@@ -152,7 +152,7 @@ private IReadOnlyList<GraphNodeDescriptor> BuildGraphNodes()
             {
                 nodes[parentId] = new GraphNodeDescriptor(
                     parentId,
-                    WorkflowExecutionRelationConstants.ActorNodeType,
+                    WorkflowExecutionGraphConstants.ActorNodeType,
                     new Dictionary<string, string>(StringComparer.Ordinal)
                     {
                         ["workflowName"] = WorkflowName ?? "",
@@ -164,7 +164,7 @@ private IReadOnlyList<GraphNodeDescriptor> BuildGraphNodes()
             {
                 nodes[childId] = new GraphNodeDescriptor(
                     childId,
-                    WorkflowExecutionRelationConstants.ActorNodeType,
+                    WorkflowExecutionGraphConstants.ActorNodeType,
                     new Dictionary<string, string>(StringComparer.Ordinal)
                     {
                         ["workflowName"] = WorkflowName ?? "",
@@ -184,7 +184,7 @@ private IReadOnlyList<GraphEdgeDescriptor> BuildGraphEdges()
         var edges = new Dictionary<string, GraphEdgeDescriptor>(StringComparer.Ordinal);
 
         var ownsEdge = CreateEdge(
-            WorkflowExecutionRelationConstants.RelationOwns,
+            WorkflowExecutionGraphConstants.EdgeTypeOwns,
             rootActorId,
             runNodeId,
             new Dictionary<string, string>(StringComparer.Ordinal),
@@ -195,7 +195,7 @@ private IReadOnlyList<GraphEdgeDescriptor> BuildGraphEdges()
         {
             var stepNodeId = BuildStepNodeId(rootActorId, CommandId, step.StepId);
             var containsEdge = CreateEdge(
-                WorkflowExecutionRelationConstants.RelationContainsStep,
+                WorkflowExecutionGraphConstants.EdgeTypeContainsStep,
                 runNodeId,
                 stepNodeId,
                 new Dictionary<string, string>(StringComparer.Ordinal)
@@ -215,7 +215,7 @@ private IReadOnlyList<GraphEdgeDescriptor> BuildGraphEdges()
                 continue;
 
             var childOfEdge = CreateEdge(
-                WorkflowExecutionRelationConstants.RelationChildOf,
+                WorkflowExecutionGraphConstants.EdgeTypeChildOf,
                 parentId,
                 childId,
                 new Dictionary<string, string>(StringComparer.Ordinal),
@@ -235,11 +235,11 @@ private static GraphEdgeDescriptor CreateEdge(
     {
         var normalizedFromNodeId = NormalizeToken(fromNodeId);
         var normalizedToNodeId = NormalizeToken(toNodeId);
-        var normalizedRelationType = NormalizeToken(relationType);
-        var edgeId = BuildEdgeId(normalizedRelationType, normalizedFromNodeId, normalizedToNodeId);
+        var normalizedEdgeType = NormalizeToken(relationType);
+        var edgeId = BuildEdgeId(normalizedEdgeType, normalizedFromNodeId, normalizedToNodeId);
         return new GraphEdgeDescriptor(
             edgeId,
-            normalizedRelationType,
+            normalizedEdgeType,
             normalizedFromNodeId,
             normalizedToNodeId,
             new Dictionary<string, string>(properties, StringComparer.Ordinal),
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs
index 3b5b30dfd..eaa9abb1a 100644
--- a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs
@@ -39,9 +39,9 @@ public WorkflowActorTimelineItem ToActorTimelineItem(WorkflowExecutionTimelineEv
         };
     }
 
-    public WorkflowActorRelationNode ToActorRelationNode(ProjectionRelationNode source)
+    public WorkflowActorGraphNode ToActorGraphNode(ProjectionGraphNode source)
     {
-        return new WorkflowActorRelationNode
+        return new WorkflowActorGraphNode
         {
             NodeId = source.NodeId,
             NodeType = source.NodeType,
@@ -50,28 +50,28 @@ public WorkflowActorRelationNode ToActorRelationNode(ProjectionRelationNode sour
         };
     }
 
-    public WorkflowActorRelationItem ToActorRelationItem(ProjectionRelationEdge source)
+    public WorkflowActorGraphEdge ToActorGraphEdge(ProjectionGraphEdge source)
     {
-        return new WorkflowActorRelationItem
+        return new WorkflowActorGraphEdge
         {
             EdgeId = source.EdgeId,
             FromNodeId = source.FromNodeId,
             ToNodeId = source.ToNodeId,
-            RelationType = source.RelationType,
+            EdgeType = source.EdgeType,
             UpdatedAt = source.UpdatedAt,
             Properties = new Dictionary<string, string>(source.Properties, StringComparer.Ordinal),
         };
     }
 
-    public WorkflowActorRelationSubgraph ToActorRelationSubgraph(
+    public WorkflowActorGraphSubgraph ToActorGraphSubgraph(
         string rootNodeId,
-        ProjectionRelationSubgraph source)
+        ProjectionGraphSubgraph source)
     {
-        return new WorkflowActorRelationSubgraph
+        return new WorkflowActorGraphSubgraph
         {
             RootNodeId = rootNodeId,
-            Nodes = source.Nodes.Select(ToActorRelationNode).ToList(),
-            Edges = source.Edges.Select(ToActorRelationItem).ToList(),
+            Nodes = source.Nodes.Select(ToActorGraphNode).ToList(),
+            Edges = source.Edges.Select(ToActorGraphEdge).ToList(),
         };
     }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionRelationConstants.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionRelationConstants.cs
deleted file mode 100644
index be34a7cf7..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionRelationConstants.cs
+++ /dev/null
@@ -1,18 +0,0 @@
-namespace Aevatar.Workflow.Projection.ReadModels;
-
-public static class WorkflowExecutionRelationConstants
-{
-    public const string Scope = "workflow-execution-relations";
-
-    public const string ActorNodeType = "Actor";
-
-    public const string RunNodeType = "WorkflowRun";
-
-    public const string StepNodeType = "WorkflowStep";
-
-    public const string RelationOwns = "OWNS";
-
-    public const string RelationContainsStep = "CONTAINS_STEP";
-
-    public const string RelationChildOf = "CHILD_OF";
-}
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj
index ba1f87406..09ff66b15 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj
@@ -7,6 +7,7 @@
     <RootNamespace>Aevatar.Workflow.Extensions.Hosting</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
+    <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Runtime.Abstractions\Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
     <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
     <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Providers.InMemory\Aevatar.CQRS.Projection.Providers.InMemory.csproj" />
     <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Providers.Neo4j\Aevatar.CQRS.Projection.Providers.Neo4j.csproj" />
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index 3449198fc..8407ba805 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -3,6 +3,7 @@
 using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
 using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
+using Aevatar.CQRS.Projection.Runtime.Abstractions;
 using Aevatar.CQRS.Projection.Stores.Abstractions;
 using Aevatar.Workflow.Projection.ReadModels;
 using Microsoft.Extensions.Configuration;
@@ -27,17 +28,17 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
 
         var providerSelection = ResolveProviderSelection(configuration);
         EnforceGraphProviderPolicy(configuration, providerSelection.GraphProvider);
-        var runtimeOptions = new ProjectionReadModelRuntimeOptions
+        var runtimeOptions = new ProjectionStoreRuntimeOptions
         {
             DocumentProvider = providerSelection.DocumentProvider,
             GraphProvider = providerSelection.GraphProvider,
             FailOnUnsupportedCapabilities = true,
-            Mode = ProjectionReadModelMode.CustomReadModel,
+            Mode = ProjectionStoreMode.Custom,
         };
 
         services.Replace(ServiceDescriptor.Singleton(runtimeOptions));
         services.Replace(ServiceDescriptor.Singleton<IProjectionStoreSelectionRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionReadModelRuntimeOptions>()));
+            sp.GetRequiredService<ProjectionStoreRuntimeOptions>()));
 
         RegisterDocumentProvider(services, configuration, providerSelection.DocumentProvider);
         RegisterGraphProvider(services, configuration, providerSelection.GraphProvider);
@@ -49,7 +50,7 @@ private static ProviderSelection ResolveProviderSelection(IConfiguration configu
     {
         var documentProvider = NormalizeOrDefaultProvider(
             configuration["Projection:Document:Provider"],
-            ProjectionReadModelProviderNames.InMemory,
+            ProjectionProviderNames.InMemory,
             "Projection:Document:Provider");
 
         var graphProvider = NormalizeOrDefaultProvider(
@@ -72,7 +73,7 @@ private static void EnforceGraphProviderPolicy(
         if ((denyInMemoryGraphProvider || production) &&
             string.Equals(
                 graphProviderName,
-                ProjectionReadModelProviderNames.InMemory,
+                ProjectionProviderNames.InMemory,
                 StringComparison.OrdinalIgnoreCase))
         {
             throw new InvalidOperationException(
@@ -113,16 +114,16 @@ private static string NormalizeOrDefaultProvider(
             ? fallbackValue
             : configuredValue.Trim();
 
-        if (string.Equals(candidate, ProjectionReadModelProviderNames.InMemory, StringComparison.OrdinalIgnoreCase))
-            return ProjectionReadModelProviderNames.InMemory;
-        if (string.Equals(candidate, ProjectionReadModelProviderNames.Elasticsearch, StringComparison.OrdinalIgnoreCase))
-            return ProjectionReadModelProviderNames.Elasticsearch;
-        if (string.Equals(candidate, ProjectionReadModelProviderNames.Neo4j, StringComparison.OrdinalIgnoreCase))
-            return ProjectionReadModelProviderNames.Neo4j;
+        if (string.Equals(candidate, ProjectionProviderNames.InMemory, StringComparison.OrdinalIgnoreCase))
+            return ProjectionProviderNames.InMemory;
+        if (string.Equals(candidate, ProjectionProviderNames.Elasticsearch, StringComparison.OrdinalIgnoreCase))
+            return ProjectionProviderNames.Elasticsearch;
+        if (string.Equals(candidate, ProjectionProviderNames.Neo4j, StringComparison.OrdinalIgnoreCase))
+            return ProjectionProviderNames.Neo4j;
 
         throw new InvalidOperationException(
             $"Unsupported projection provider '{candidate}' configured at '{optionPath}'. " +
-            $"Allowed values: {ProjectionReadModelProviderNames.InMemory}, {ProjectionReadModelProviderNames.Elasticsearch}, {ProjectionReadModelProviderNames.Neo4j}.");
+            $"Allowed values: {ProjectionProviderNames.InMemory}, {ProjectionProviderNames.Elasticsearch}, {ProjectionProviderNames.Neo4j}.");
     }
 
     private static void RegisterDocumentProvider(
@@ -132,14 +133,14 @@ private static void RegisterDocumentProvider(
     {
         switch (providerName)
         {
-            case ProjectionReadModelProviderNames.InMemory:
+            case ProjectionProviderNames.InMemory:
                 services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
                     keySelector: report => report.RootActorId,
                     keyFormatter: key => key,
                     listSortSelector: report => report.CreatedAt,
                     listTakeMax: 200);
                 break;
-            case ProjectionReadModelProviderNames.Elasticsearch:
+            case ProjectionProviderNames.Elasticsearch:
                 services.AddElasticsearchDocumentStoreRegistration<WorkflowExecutionReport, string>(
                     optionsFactory: _ =>
                     {
@@ -155,7 +156,7 @@ private static void RegisterDocumentProvider(
                     keySelector: report => report.RootActorId,
                     keyFormatter: key => key);
                 break;
-            case ProjectionReadModelProviderNames.Neo4j:
+            case ProjectionProviderNames.Neo4j:
                 services.AddNeo4jDocumentStoreRegistration<WorkflowExecutionReport, string>(
                     optionsFactory: _ =>
                     {
@@ -183,21 +184,21 @@ private static void RegisterGraphProvider(
     {
         switch (providerName)
         {
-            case ProjectionReadModelProviderNames.InMemory:
+            case ProjectionProviderNames.InMemory:
                 services.AddInMemoryGraphStoreRegistration();
                 break;
-            case ProjectionReadModelProviderNames.Elasticsearch:
+            case ProjectionProviderNames.Elasticsearch:
                 throw new InvalidOperationException(
                     "Elasticsearch cannot be used as graph provider. Use InMemory (dev/test) or Neo4j.");
-            case ProjectionReadModelProviderNames.Neo4j:
+            case ProjectionProviderNames.Neo4j:
                 services.AddNeo4jGraphStoreRegistration(
                     optionsFactory: _ =>
                     {
-                        var providerOptions = new Neo4jProjectionRelationStoreOptions();
+                        var providerOptions = new Neo4jProjectionGraphStoreOptions();
                         configuration.GetSection("Projection:Graph:Providers:Neo4j").Bind(providerOptions);
                         return providerOptions;
                     },
-                    scopeFactory: _ => WorkflowExecutionRelationConstants.Scope);
+                    scopeFactory: _ => WorkflowExecutionGraphConstants.Scope);
                 break;
             default:
                 throw new InvalidOperationException($"Unsupported graph provider '{providerName}'.");
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj b/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
index 541238305..83fd3aec2 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj
@@ -11,6 +11,7 @@
   <ItemGroup>
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Runtime.Abstractions\Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.StateMirror\Aevatar.CQRS.Projection.StateMirror.csproj" />
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/GlobalUsings.cs b/test/Aevatar.CQRS.Projection.Core.Tests/GlobalUsings.cs
index 0c3254ec5..593848c52 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/GlobalUsings.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/GlobalUsings.cs
@@ -2,3 +2,4 @@
 global using Aevatar.Foundation.Abstractions;
 global using Aevatar.CQRS.Projection.Core.Abstractions;
 global using Aevatar.CQRS.Projection.Stores.Abstractions;
+global using Aevatar.CQRS.Projection.Runtime.Abstractions;
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
index b9cadd4db..4199a8f19 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
@@ -5,44 +5,12 @@ namespace Aevatar.CQRS.Projection.Core.Tests;
 
 public class ProjectionReadModelRuntimeTests
 {
-    [Fact]
-    public void BindingResolver_ShouldResolveRequirement_ByReadModelFullName()
-    {
-        var resolver = new ProjectionReadModelBindingResolver();
-        var bindingKey = typeof(TestReadModel).FullName!;
-        var bindings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
-        {
-            [bindingKey] = ProjectionReadModelIndexKind.Graph.ToString(),
-        };
-
-        var requirements = resolver.Resolve(bindings, typeof(TestReadModel));
-
-        requirements.RequiresIndexing.Should().BeTrue();
-        requirements.RequiredIndexKinds.Should().ContainSingle()
-            .Which.Should().Be(ProjectionReadModelIndexKind.Graph);
-    }
-
-    [Fact]
-    public void BindingResolver_WhenBindingUsesShortTypeName_ShouldThrow()
-    {
-        var resolver = new ProjectionReadModelBindingResolver();
-        var bindings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
-        {
-            [nameof(TestReadModel)] = ProjectionReadModelIndexKind.Document.ToString(),
-        };
-
-        Action act = () => resolver.Resolve(bindings, typeof(TestReadModel));
-
-        act.Should().Throw<ProjectionReadModelBindingException>()
-            .WithMessage("*must use full type name*");
-    }
-
     [Fact]
     public void ProviderSelector_WhenFailFastDisabled_ShouldReturnRegistration()
     {
-        var selector = new ProjectionReadModelProviderSelector(
-            new ProjectionReadModelCapabilityValidatorService());
-        var registrations = new List<IProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>>>
+        var selector = new ProjectionDocumentStoreProviderSelector(
+            new ProjectionProviderCapabilityValidatorService());
+        var registrations = new List<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>
         {
             CreateRegistration(
                 "InMemory",
@@ -52,14 +20,14 @@ public void ProviderSelector_WhenFailFastDisabled_ShouldReturnRegistration()
 
         var selected = selector.Select(
             registrations,
-            new ProjectionReadModelStoreSelectionOptions
+            new ProjectionStoreSelectionOptions
             {
                 RequestedProviderName = "InMemory",
                 FailOnUnsupportedCapabilities = false,
             },
-            new ProjectionReadModelRequirements(
+            new ProjectionStoreRequirements(
                 requiresIndexing: true,
-                requiredIndexKinds: [ProjectionReadModelIndexKind.Document]));
+                requiredIndexKinds: [ProjectionIndexKind.Document]));
 
         selected.ProviderName.Should().Be("InMemory");
     }
@@ -67,34 +35,34 @@ public void ProviderSelector_WhenFailFastDisabled_ShouldReturnRegistration()
     [Fact]
     public void ProviderSelector_WhenMultipleProvidersWithoutRequested_ShouldThrowStructuredException()
     {
-        var selector = new ProjectionReadModelProviderSelector(
-            new ProjectionReadModelCapabilityValidatorService());
-        var registrations = new List<IProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>>>
+        var selector = new ProjectionDocumentStoreProviderSelector(
+            new ProjectionProviderCapabilityValidatorService());
+        var registrations = new List<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>
         {
             CreateRegistration("InMemory", supportsIndexing: false, indexKinds: []),
-            CreateRegistration("Elasticsearch", supportsIndexing: true, indexKinds: [ProjectionReadModelIndexKind.Document]),
+            CreateRegistration("Elasticsearch", supportsIndexing: true, indexKinds: [ProjectionIndexKind.Document]),
         };
 
         Action act = () => selector.Select(
             registrations,
-            new ProjectionReadModelStoreSelectionOptions(),
-            new ProjectionReadModelRequirements());
+            new ProjectionStoreSelectionOptions(),
+            new ProjectionStoreRequirements());
 
         act.Should().Throw<ProjectionProviderSelectionException>()
             .Where(ex => ex.ReadModelType == typeof(TestReadModel));
     }
 
-    private static IProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>> CreateRegistration(
+    private static IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>> CreateRegistration(
         string providerName,
         bool supportsIndexing,
-        IReadOnlyList<ProjectionReadModelIndexKind> indexKinds)
+        IReadOnlyList<ProjectionIndexKind> indexKinds)
     {
-        var capabilities = new ProjectionReadModelProviderCapabilities(
+        var capabilities = new ProjectionProviderCapabilities(
             providerName,
             supportsIndexing,
             indexKinds);
 
-        return new DelegateProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>>(
+        return new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
             providerName,
             capabilities,
             _ => new NoopStore());
@@ -105,7 +73,7 @@ public sealed class TestReadModel
         public string Id { get; set; } = "";
     }
 
-    private sealed class NoopStore : IProjectionReadModelStore<TestReadModel, string>
+    private sealed class NoopStore : IDocumentProjectionStore<TestReadModel, string>
     {
         public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default)
         {
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
index 6612e3d48..085eafe3c 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
@@ -2,7 +2,7 @@
 
 namespace Aevatar.CQRS.Projection.Core.Tests;
 
-public class ProjectionReadModelStoreSelectorTests
+public class ProjectionDocumentStoreSelectorTests
 {
     [Fact]
     public void Select_WhenSingleProviderRegistered_ShouldReturnSingleProvider()
@@ -12,10 +12,10 @@ public void Select_WhenSingleProviderRegistered_ShouldReturnSingleProvider()
             CreateRegistration("inmemory", supportsIndexing: false),
         };
 
-        var selected = ProjectionReadModelStoreSelector.Select(
+        var selected = ProjectionDocumentStoreSelector.Select(
             registrations,
-            new ProjectionReadModelStoreSelectionOptions(),
-            new ProjectionReadModelRequirements());
+            new ProjectionStoreSelectionOptions(),
+            new ProjectionStoreRequirements());
 
         selected.ProviderName.Should().Be("inmemory");
     }
@@ -26,13 +26,13 @@ public void Select_WhenMultipleProvidersAndNoRequestedProvider_ShouldThrow()
         var registrations = new[]
         {
             CreateRegistration("inmemory", supportsIndexing: false),
-            CreateRegistration("elasticsearch", supportsIndexing: true, indexKinds: [ProjectionReadModelIndexKind.Document]),
+            CreateRegistration("elasticsearch", supportsIndexing: true, indexKinds: [ProjectionIndexKind.Document]),
         };
 
-        Action act = () => ProjectionReadModelStoreSelector.Select(
+        Action act = () => ProjectionDocumentStoreSelector.Select(
             registrations,
-            new ProjectionReadModelStoreSelectionOptions(),
-            new ProjectionReadModelRequirements());
+            new ProjectionStoreSelectionOptions(),
+            new ProjectionStoreRequirements());
 
         act.Should().Throw<ProjectionProviderSelectionException>()
             .Where(ex => ex.Reason.Contains("Multiple providers are registered", StringComparison.Ordinal));
@@ -46,13 +46,13 @@ public void Select_WhenRequestedProviderMissing_ShouldThrow()
             CreateRegistration("inmemory", supportsIndexing: false),
         };
 
-        Action act = () => ProjectionReadModelStoreSelector.Select(
+        Action act = () => ProjectionDocumentStoreSelector.Select(
             registrations,
-            new ProjectionReadModelStoreSelectionOptions
+            new ProjectionStoreSelectionOptions
             {
                 RequestedProviderName = "elasticsearch",
             },
-            new ProjectionReadModelRequirements());
+            new ProjectionStoreRequirements());
 
         act.Should().Throw<ProjectionProviderSelectionException>()
             .Where(ex => ex.Reason.Contains("Requested provider is not registered", StringComparison.Ordinal));
@@ -66,18 +66,18 @@ public void Select_WhenCapabilitiesUnsupportedAndFailFastEnabled_ShouldThrow()
             CreateRegistration("inmemory", supportsIndexing: false),
         };
 
-        Action act = () => ProjectionReadModelStoreSelector.Select(
+        Action act = () => ProjectionDocumentStoreSelector.Select(
             registrations,
-            new ProjectionReadModelStoreSelectionOptions
+            new ProjectionStoreSelectionOptions
             {
                 RequestedProviderName = "inmemory",
                 FailOnUnsupportedCapabilities = true,
             },
-            new ProjectionReadModelRequirements(
+            new ProjectionStoreRequirements(
                 requiresIndexing: true,
-                requiredIndexKinds: [ProjectionReadModelIndexKind.Document]));
+                requiredIndexKinds: [ProjectionIndexKind.Document]));
 
-        act.Should().Throw<ProjectionReadModelCapabilityValidationException>();
+        act.Should().Throw<ProjectionProviderCapabilityValidationException>();
     }
 
     [Fact]
@@ -88,21 +88,21 @@ public void Select_WhenRequiredIndexKindsAreNotFullySupported_ShouldThrow()
             CreateRegistration(
                 "neo4j",
                 supportsIndexing: true,
-                indexKinds: [ProjectionReadModelIndexKind.Graph]),
+                indexKinds: [ProjectionIndexKind.Graph]),
         };
 
-        Action act = () => ProjectionReadModelStoreSelector.Select(
+        Action act = () => ProjectionDocumentStoreSelector.Select(
             registrations,
-            new ProjectionReadModelStoreSelectionOptions
+            new ProjectionStoreSelectionOptions
             {
                 RequestedProviderName = "neo4j",
                 FailOnUnsupportedCapabilities = true,
             },
-            new ProjectionReadModelRequirements(
+            new ProjectionStoreRequirements(
                 requiresIndexing: true,
-                requiredIndexKinds: [ProjectionReadModelIndexKind.Document, ProjectionReadModelIndexKind.Graph]));
+                requiredIndexKinds: [ProjectionIndexKind.Document, ProjectionIndexKind.Graph]));
 
-        act.Should().Throw<ProjectionReadModelCapabilityValidationException>()
+        act.Should().Throw<ProjectionProviderCapabilityValidationException>()
             .WithMessage("*not fully supported*");
     }
 
@@ -114,37 +114,37 @@ public void Select_WhenCapabilitiesUnsupportedAndFailFastDisabled_ShouldReturnPr
             CreateRegistration("inmemory", supportsIndexing: false),
         };
 
-        var selected = ProjectionReadModelStoreSelector.Select(
+        var selected = ProjectionDocumentStoreSelector.Select(
             registrations,
-            new ProjectionReadModelStoreSelectionOptions
+            new ProjectionStoreSelectionOptions
             {
                 RequestedProviderName = "inmemory",
                 FailOnUnsupportedCapabilities = false,
             },
-            new ProjectionReadModelRequirements(
+            new ProjectionStoreRequirements(
                 requiresIndexing: true,
-                requiredIndexKinds: [ProjectionReadModelIndexKind.Document]));
+                requiredIndexKinds: [ProjectionIndexKind.Document]));
 
         selected.ProviderName.Should().Be("inmemory");
     }
 
-    private static IProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>> CreateRegistration(
+    private static IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>> CreateRegistration(
         string providerName,
         bool supportsIndexing,
-        IEnumerable<ProjectionReadModelIndexKind>? indexKinds = null)
+        IEnumerable<ProjectionIndexKind>? indexKinds = null)
     {
-        var capabilities = new ProjectionReadModelProviderCapabilities(
+        var capabilities = new ProjectionProviderCapabilities(
             providerName,
             supportsIndexing,
             indexKinds);
 
-        return new DelegateProjectionStoreRegistration<IProjectionReadModelStore<TestReadModel, string>>(
+        return new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
             providerName,
             capabilities,
             _ => new NoopStore());
     }
 
-    private sealed class NoopStore : IProjectionReadModelStore<TestReadModel, string>
+    private sealed class NoopStore : IDocumentProjectionStore<TestReadModel, string>
     {
         public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default) => Task.CompletedTask;
 
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs
index 032ae3ec2..f8c027860 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs
@@ -16,7 +16,7 @@ public void Build_WhenReadModelProviderIsEmpty_ShouldThrow()
             DocumentProvider = " ",
         };
 
-        Action act = () => _planner.Build(options, typeof(TestReadModel), new ProjectionReadModelRequirements());
+        Action act = () => _planner.Build(options, typeof(TestReadModel), new ProjectionStoreRequirements());
 
         act.Should().Throw<InvalidOperationException>()
             .WithMessage("*read-model provider is required*");
@@ -27,37 +27,37 @@ public void Build_WhenRelationProviderMissing_ShouldFallbackToReadModelProvider(
     {
         var options = new FakeOptions
         {
-            DocumentProvider = ProjectionReadModelProviderNames.Neo4j,
+            DocumentProvider = ProjectionProviderNames.Neo4j,
             GraphProvider = " ",
         };
 
-        var plan = _planner.Build(options, typeof(TestReadModel), new ProjectionReadModelRequirements(
-            requiresRelations: true,
-            requiresRelationTraversal: true));
+        var plan = _planner.Build(options, typeof(TestReadModel), new ProjectionStoreRequirements(
+            requiresGraph: true,
+            requiresGraphTraversal: true));
 
-        plan.ReadModelSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Neo4j);
-        plan.RelationSelectionOptions.RequestedProviderName.Should().Be(ProjectionReadModelProviderNames.Neo4j);
+        plan.DocumentSelectionOptions.RequestedProviderName.Should().Be(ProjectionProviderNames.Neo4j);
+        plan.GraphSelectionOptions.RequestedProviderName.Should().Be(ProjectionProviderNames.Neo4j);
     }
 
     [Fact]
-    public void Build_ShouldMergeRelationRequirementsWithReadModelAliasAndSchemaRequirements()
+    public void Build_ShouldMergeGraphRequirementsWithReadModelAliasAndSchemaRequirements()
     {
         var options = new FakeOptions
         {
-            DocumentProvider = ProjectionReadModelProviderNames.Neo4j,
+            DocumentProvider = ProjectionProviderNames.Neo4j,
         };
-        var relationRequirements = new ProjectionReadModelRequirements(
-            requiresRelations: true,
-            requiresRelationTraversal: true,
+        var graphRequirements = new ProjectionStoreRequirements(
+            requiresGraph: true,
+            requiresGraphTraversal: true,
             requiresAliases: false,
             requiresSchemaValidation: false);
 
-        var plan = _planner.Build(options, typeof(TestGraphReadModel), relationRequirements);
+        var plan = _planner.Build(options, typeof(TestGraphReadModel), graphRequirements);
 
-        plan.RelationRequirements.RequiresRelations.Should().BeTrue();
-        plan.RelationRequirements.RequiresRelationTraversal.Should().BeTrue();
-        plan.RelationRequirements.RequiresAliases.Should().BeFalse();
-        plan.RelationRequirements.RequiresSchemaValidation.Should().BeFalse();
+        plan.GraphRequirements.RequiresGraph.Should().BeTrue();
+        plan.GraphRequirements.RequiresGraphTraversal.Should().BeTrue();
+        plan.GraphRequirements.RequiresAliases.Should().BeFalse();
+        plan.GraphRequirements.RequiresSchemaValidation.Should().BeFalse();
     }
 
     [Fact]
@@ -65,11 +65,11 @@ public void Build_WhenStateOnlyModeConfigured_ShouldThrow()
     {
         var options = new FakeOptions
         {
-            DocumentProvider = ProjectionReadModelProviderNames.InMemory,
-            ReadModelMode = ProjectionReadModelMode.StateOnly,
+            DocumentProvider = ProjectionProviderNames.InMemory,
+            StoreMode = ProjectionStoreMode.StateOnly,
         };
 
-        Action act = () => _planner.Build(options, typeof(TestReadModel), new ProjectionReadModelRequirements());
+        Action act = () => _planner.Build(options, typeof(TestReadModel), new ProjectionStoreRequirements());
 
         act.Should().Throw<InvalidOperationException>()
             .WithMessage("*does not support*StateOnly*");
@@ -77,13 +77,13 @@ public void Build_WhenStateOnlyModeConfigured_ShouldThrow()
 
     private sealed class FakeOptions : IProjectionStoreSelectionRuntimeOptions
     {
-        public string DocumentProvider { get; set; } = ProjectionReadModelProviderNames.InMemory;
+        public string DocumentProvider { get; set; } = ProjectionProviderNames.InMemory;
 
         public string GraphProvider { get; set; } = "";
 
         public bool FailOnUnsupportedCapabilities { get; set; } = true;
 
-        public ProjectionReadModelMode ReadModelMode { get; set; } = ProjectionReadModelMode.CustomReadModel;
+        public ProjectionStoreMode StoreMode { get; set; } = ProjectionStoreMode.Custom;
     }
 
     private sealed class TestReadModel;
diff --git a/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs b/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
index ab439a4c7..9917105f8 100644
--- a/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
+++ b/test/Aevatar.Workflow.Application.Tests/WorkflowApplicationLayerTests.cs
@@ -294,20 +294,20 @@ public async Task GetActorSnapshotAsync_ShouldReturnProjectionPortResult()
     }
 
     [Fact]
-    public async Task ListActorRelationsAsync_ShouldReturnProjectionPortResult()
+    public async Task ListActorGraphEdgesAsync_ShouldReturnProjectionPortResult()
     {
-        var relation = new WorkflowActorRelationItem
+        var relation = new WorkflowActorGraphEdge
         {
             EdgeId = "edge-1",
             FromNodeId = "actor-1",
             ToNodeId = "actor-2",
-            RelationType = "CHILD_OF",
+            EdgeType = "CHILD_OF",
             UpdatedAt = DateTimeOffset.UtcNow,
         };
         var projection = new FakeProjectionService
         {
             EnableActorQueryEndpointsValue = true,
-            RelationsByActorId = new Dictionary<string, IReadOnlyList<WorkflowActorRelationItem>>(StringComparer.Ordinal)
+            RelationsByActorId = new Dictionary<string, IReadOnlyList<WorkflowActorGraphEdge>>(StringComparer.Ordinal)
             {
                 ["actor-1"] = [relation],
             },
@@ -316,27 +316,27 @@ public async Task ListActorRelationsAsync_ShouldReturnProjectionPortResult()
             new WorkflowDefinitionRegistry(),
             projection);
 
-        var items = await queryService.ListActorRelationsAsync("actor-1", ct: CancellationToken.None);
+        var items = await queryService.ListActorGraphEdgesAsync("actor-1", ct: CancellationToken.None);
 
         items.Should().ContainSingle();
         items[0].EdgeId.Should().Be("edge-1");
-        items[0].RelationType.Should().Be("CHILD_OF");
+        items[0].EdgeType.Should().Be("CHILD_OF");
     }
 
     [Fact]
-    public async Task GetActorRelationSubgraphAsync_ShouldReturnProjectionPortResult()
+    public async Task GetActorGraphSubgraphAsync_ShouldReturnProjectionPortResult()
     {
-        var subgraph = new WorkflowActorRelationSubgraph
+        var subgraph = new WorkflowActorGraphSubgraph
         {
             RootNodeId = "actor-1",
             Nodes =
             [
-                new WorkflowActorRelationNode
+                new WorkflowActorGraphNode
                 {
                     NodeId = "actor-1",
                     NodeType = "Actor",
                 },
-                new WorkflowActorRelationNode
+                new WorkflowActorGraphNode
                 {
                     NodeId = "actor-2",
                     NodeType = "Actor",
@@ -344,19 +344,19 @@ public async Task GetActorRelationSubgraphAsync_ShouldReturnProjectionPortResult
             ],
             Edges =
             [
-                new WorkflowActorRelationItem
+                new WorkflowActorGraphEdge
                 {
                     EdgeId = "edge-1",
                     FromNodeId = "actor-1",
                     ToNodeId = "actor-2",
-                    RelationType = "CHILD_OF",
+                    EdgeType = "CHILD_OF",
                 },
             ],
         };
         var projection = new FakeProjectionService
         {
             EnableActorQueryEndpointsValue = true,
-            SubgraphByActorId = new Dictionary<string, WorkflowActorRelationSubgraph>(StringComparer.Ordinal)
+            SubgraphByActorId = new Dictionary<string, WorkflowActorGraphSubgraph>(StringComparer.Ordinal)
             {
                 ["actor-1"] = subgraph,
             },
@@ -365,7 +365,7 @@ public async Task GetActorRelationSubgraphAsync_ShouldReturnProjectionPortResult
             new WorkflowDefinitionRegistry(),
             projection);
 
-        var item = await queryService.GetActorRelationSubgraphAsync("actor-1", ct: CancellationToken.None);
+        var item = await queryService.GetActorGraphSubgraphAsync("actor-1", ct: CancellationToken.None);
 
         item.RootNodeId.Should().Be("actor-1");
         item.Nodes.Should().HaveCount(2);
@@ -408,8 +408,8 @@ internal sealed class FakeProjectionService :
     public IWorkflowExecutionProjectionLease? LastLease { get; private set; }
     public Dictionary<string, WorkflowActorSnapshot> SnapshotByActorId { get; set; } = new(StringComparer.Ordinal);
     public Dictionary<string, IReadOnlyList<WorkflowActorTimelineItem>> TimelineByActorId { get; set; } = new(StringComparer.Ordinal);
-    public Dictionary<string, IReadOnlyList<WorkflowActorRelationItem>> RelationsByActorId { get; set; } = new(StringComparer.Ordinal);
-    public Dictionary<string, WorkflowActorRelationSubgraph> SubgraphByActorId { get; set; } = new(StringComparer.Ordinal);
+    public Dictionary<string, IReadOnlyList<WorkflowActorGraphEdge>> RelationsByActorId { get; set; } = new(StringComparer.Ordinal);
+    public Dictionary<string, WorkflowActorGraphSubgraph> SubgraphByActorId { get; set; } = new(StringComparer.Ordinal);
     public IReadOnlyList<WorkflowActorSnapshot> SnapshotList { get; set; } = [];
 
     public bool EnableActorQueryEndpoints => EnableActorQueryEndpointsValue;
@@ -472,10 +472,10 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
         return Task.FromResult<IReadOnlyList<WorkflowActorTimelineItem>>(timeline.Take(Math.Max(1, take)).ToList());
     }
 
-    public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+    public Task<IReadOnlyList<WorkflowActorGraphEdge>> GetActorGraphEdgesAsync(
         string actorId,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default)
     {
         _ = options;
@@ -483,14 +483,14 @@ public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
         if (!RelationsByActorId.TryGetValue(actorId, out var relations))
             relations = [];
 
-        return Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>(relations.Take(Math.Max(1, take)).ToList());
+        return Task.FromResult<IReadOnlyList<WorkflowActorGraphEdge>>(relations.Take(Math.Max(1, take)).ToList());
     }
 
-    public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+    public Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default)
     {
         _ = depth;
@@ -499,7 +499,7 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         _ = ct;
         if (!SubgraphByActorId.TryGetValue(actorId, out var subgraph))
         {
-            subgraph = new WorkflowActorRelationSubgraph
+            subgraph = new WorkflowActorGraphSubgraph
             {
                 RootNodeId = actorId,
             };
@@ -512,14 +512,14 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
         string actorId,
         int depth = 2,
         int take = 200,
-        WorkflowActorRelationQueryOptions? options = null,
+        WorkflowActorGraphQueryOptions? options = null,
         CancellationToken ct = default)
     {
         var snapshot = await GetActorSnapshotAsync(actorId, ct);
         if (snapshot == null)
             return null;
 
-        var subgraph = await GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
+        var subgraph = await GetActorGraphSubgraphAsync(actorId, depth, take, options, ct);
         return new WorkflowActorGraphEnrichedSnapshot
         {
             Snapshot = snapshot,
diff --git a/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs b/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs
index 4d84cad87..464917cb1 100644
--- a/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs
+++ b/test/Aevatar.Workflow.Application.Tests/WorkflowRunOrchestrationComponentTests.cs
@@ -358,7 +358,7 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(str
             return Task.FromResult<IReadOnlyList<WorkflowActorTimelineItem>>([]);
         }
 
-        public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+        public Task<IReadOnlyList<WorkflowActorGraphEdge>> GetActorGraphEdgesAsync(
             string actorId,
             int take = 200,
             CancellationToken ct = default)
@@ -366,10 +366,10 @@ public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
             _ = actorId;
             _ = take;
             ct.ThrowIfCancellationRequested();
-            return Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>([]);
+            return Task.FromResult<IReadOnlyList<WorkflowActorGraphEdge>>([]);
         }
 
-        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        public Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
             string actorId,
             int depth = 2,
             int take = 200,
@@ -378,7 +378,7 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             _ = depth;
             _ = take;
             ct.ThrowIfCancellationRequested();
-            return Task.FromResult(new WorkflowActorRelationSubgraph
+            return Task.FromResult(new WorkflowActorGraphSubgraph
             {
                 RootNodeId = actorId,
             });
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj b/test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj
index 990d69098..8d57ef957 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj
+++ b/test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj
@@ -10,6 +10,7 @@
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Runtime.Abstractions\Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
     <ProjectReference Include="..\..\src\Aevatar.AI.Projection\Aevatar.AI.Projection.csproj" />
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
index 9f00d65d6..ecd4b9584 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/ChatEndpointsInternalTests.cs
@@ -39,8 +39,8 @@ public void MapWorkflowCapabilityEndpoints_ShouldRegisterCoreRoutes()
         routePatterns.Should().Contain("/api/ws/chat");
         routePatterns.Should().Contain("/api/actors/{actorId}");
         routePatterns.Should().Contain("/api/actors/{actorId}/timeline");
-        routePatterns.Should().Contain("/api/actors/{actorId}/relations");
-        routePatterns.Should().Contain("/api/actors/{actorId}/relation-subgraph");
+        routePatterns.Should().Contain("/api/actors/{actorId}/graph-edges");
+        routePatterns.Should().Contain("/api/actors/{actorId}/graph-subgraph");
     }
 
     [Fact]
@@ -271,27 +271,27 @@ public async Task ListActorTimeline_ShouldReturnTimelineItems()
     }
 
     [Fact]
-    public async Task ListActorRelations_ShouldReturnRelationItems()
+    public async Task ListActorGraphEdges_ShouldReturnRelationItems()
     {
         var queryService = new FakeQueryService
         {
             ActorQueryEnabledValue = true,
-            RelationsByActorId = new Dictionary<string, IReadOnlyList<WorkflowActorRelationItem>>(StringComparer.Ordinal)
+            RelationsByActorId = new Dictionary<string, IReadOnlyList<WorkflowActorGraphEdge>>(StringComparer.Ordinal)
             {
                 ["actor-1"] =
                 [
-                    new WorkflowActorRelationItem
+                    new WorkflowActorGraphEdge
                     {
                         EdgeId = "edge-1",
                         FromNodeId = "actor-1",
                         ToNodeId = "actor-2",
-                        RelationType = "CHILD_OF",
+                        EdgeType = "CHILD_OF",
                     },
                 ],
             },
         };
 
-        var result = await ChatQueryEndpoints.ListActorRelations("actor-1", queryService, 50, ct: CancellationToken.None);
+        var result = await ChatQueryEndpoints.ListActorGraphEdges("actor-1", queryService, 50, ct: CancellationToken.None);
         var (statusCode, body) = await ExecuteResultAsync(result);
         using var doc = JsonDocument.Parse(body);
 
@@ -301,47 +301,47 @@ public async Task ListActorRelations_ShouldReturnRelationItems()
     }
 
     [Fact]
-    public async Task ListActorRelations_WhenDirectionAndRelationTypesProvided_ShouldForwardQueryOptions()
+    public async Task ListActorGraphEdges_WhenDirectionAndEdgeTypesProvided_ShouldForwardQueryOptions()
     {
         var queryService = new FakeQueryService
         {
             ActorQueryEnabledValue = true,
         };
 
-        var result = await ChatQueryEndpoints.ListActorRelations(
+        var result = await ChatQueryEndpoints.ListActorGraphEdges(
             "actor-1",
             queryService,
             50,
             direction: "Outbound",
-            relationTypes: ["CHILD_OF", "OWNS"],
+            edgeTypes: ["CHILD_OF", "OWNS"],
             ct: CancellationToken.None);
         var (statusCode, _) = await ExecuteResultAsync(result);
 
         statusCode.Should().Be(StatusCodes.Status200OK);
-        queryService.LastRelationQueryOptions.Should().NotBeNull();
-        queryService.LastRelationQueryOptions!.Direction.Should().Be(WorkflowActorRelationDirection.Outbound);
-        queryService.LastRelationQueryOptions.RelationTypes.Should().BeEquivalentTo(["CHILD_OF", "OWNS"]);
+        queryService.LastGraphQueryOptions.Should().NotBeNull();
+        queryService.LastGraphQueryOptions!.Direction.Should().Be(WorkflowActorGraphDirection.Outbound);
+        queryService.LastGraphQueryOptions.EdgeTypes.Should().BeEquivalentTo(["CHILD_OF", "OWNS"]);
     }
 
     [Fact]
-    public async Task GetActorRelationSubgraph_ShouldReturnSubgraph()
+    public async Task GetActorGraphSubgraph_ShouldReturnSubgraph()
     {
         var queryService = new FakeQueryService
         {
             ActorQueryEnabledValue = true,
-            SubgraphByActorId = new Dictionary<string, WorkflowActorRelationSubgraph>(StringComparer.Ordinal)
+            SubgraphByActorId = new Dictionary<string, WorkflowActorGraphSubgraph>(StringComparer.Ordinal)
             {
-                ["actor-1"] = new WorkflowActorRelationSubgraph
+                ["actor-1"] = new WorkflowActorGraphSubgraph
                 {
                     RootNodeId = "actor-1",
                     Nodes =
                     [
-                        new WorkflowActorRelationNode
+                        new WorkflowActorGraphNode
                         {
                             NodeId = "actor-1",
                             NodeType = "Actor",
                         },
-                        new WorkflowActorRelationNode
+                        new WorkflowActorGraphNode
                         {
                             NodeId = "actor-2",
                             NodeType = "Actor",
@@ -349,19 +349,19 @@ public async Task GetActorRelationSubgraph_ShouldReturnSubgraph()
                     ],
                     Edges =
                     [
-                        new WorkflowActorRelationItem
+                        new WorkflowActorGraphEdge
                         {
                             EdgeId = "edge-1",
                             FromNodeId = "actor-1",
                             ToNodeId = "actor-2",
-                            RelationType = "CHILD_OF",
+                            EdgeType = "CHILD_OF",
                         },
                     ],
                 },
             },
         };
 
-        var result = await ChatQueryEndpoints.GetActorRelationSubgraph("actor-1", queryService, 2, 50, ct: CancellationToken.None);
+        var result = await ChatQueryEndpoints.GetActorGraphSubgraph("actor-1", queryService, 2, 50, ct: CancellationToken.None);
         var (statusCode, body) = await ExecuteResultAsync(result);
         using var doc = JsonDocument.Parse(body);
 
@@ -435,9 +435,9 @@ private sealed class FakeQueryService :
         public IReadOnlyList<string> Workflows { get; set; } = [];
         public Dictionary<string, WorkflowActorSnapshot> SnapshotByActorId { get; set; } = new(StringComparer.Ordinal);
         public Dictionary<string, IReadOnlyList<WorkflowActorTimelineItem>> TimelineByActorId { get; set; } = new(StringComparer.Ordinal);
-        public Dictionary<string, IReadOnlyList<WorkflowActorRelationItem>> RelationsByActorId { get; set; } = new(StringComparer.Ordinal);
-        public Dictionary<string, WorkflowActorRelationSubgraph> SubgraphByActorId { get; set; } = new(StringComparer.Ordinal);
-        public WorkflowActorRelationQueryOptions? LastRelationQueryOptions { get; private set; }
+        public Dictionary<string, IReadOnlyList<WorkflowActorGraphEdge>> RelationsByActorId { get; set; } = new(StringComparer.Ordinal);
+        public Dictionary<string, WorkflowActorGraphSubgraph> SubgraphByActorId { get; set; } = new(StringComparer.Ordinal);
+        public WorkflowActorGraphQueryOptions? LastGraphQueryOptions { get; private set; }
 
         public bool ActorQueryEnabled => ActorQueryEnabledValue;
 
@@ -460,34 +460,34 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(str
             return Task.FromResult<IReadOnlyList<WorkflowActorTimelineItem>>(items.Take(Math.Max(1, take)).ToList());
         }
 
-        public Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
+        public Task<IReadOnlyList<WorkflowActorGraphEdge>> ListActorGraphEdgesAsync(
             string actorId,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
+            WorkflowActorGraphQueryOptions? options = null,
             CancellationToken ct = default)
         {
-            LastRelationQueryOptions = options;
+            LastGraphQueryOptions = options;
             _ = options;
             if (!RelationsByActorId.TryGetValue(actorId, out var items))
                 items = [];
 
-            return Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>(items.Take(Math.Max(1, take)).ToList());
+            return Task.FromResult<IReadOnlyList<WorkflowActorGraphEdge>>(items.Take(Math.Max(1, take)).ToList());
         }
 
-        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        public Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
             string actorId,
             int depth = 2,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
+            WorkflowActorGraphQueryOptions? options = null,
             CancellationToken ct = default)
         {
-            LastRelationQueryOptions = options;
+            LastGraphQueryOptions = options;
             _ = depth;
             _ = take;
             _ = options;
             if (!SubgraphByActorId.TryGetValue(actorId, out var item))
             {
-                item = new WorkflowActorRelationSubgraph
+                item = new WorkflowActorGraphSubgraph
                 {
                     RootNodeId = actorId,
                 };
@@ -500,14 +500,14 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             string actorId,
             int depth = 2,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
+            WorkflowActorGraphQueryOptions? options = null,
             CancellationToken ct = default)
         {
             var snapshot = await GetActorSnapshotAsync(actorId, ct);
             if (snapshot == null)
                 return null;
 
-            var subgraph = await GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
+            var subgraph = await GetActorGraphSubgraphAsync(actorId, depth, take, options, ct);
             return new WorkflowActorGraphEnrichedSnapshot
             {
                 Snapshot = snapshot,
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
index 5de50f0ea..e2a0a83e5 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/ChatWebSocketCoordinatorAndProtocolTests.cs
@@ -189,18 +189,18 @@ private sealed class FakeQueryService : IWorkflowExecutionQueryApplicationServic
             return Task.FromResult<WorkflowActorSnapshot?>(Snapshot);
         }
         public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(string actorId, int take = 200, CancellationToken ct = default) => Task.FromResult<IReadOnlyList<WorkflowActorTimelineItem>>([]);
-        public Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
+        public Task<IReadOnlyList<WorkflowActorGraphEdge>> ListActorGraphEdgesAsync(
             string actorId,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
-            CancellationToken ct = default) => Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>([]);
-        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+            WorkflowActorGraphQueryOptions? options = null,
+            CancellationToken ct = default) => Task.FromResult<IReadOnlyList<WorkflowActorGraphEdge>>([]);
+        public Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
             string actorId,
             int depth = 2,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
+            WorkflowActorGraphQueryOptions? options = null,
             CancellationToken ct = default) =>
-            Task.FromResult(new WorkflowActorRelationSubgraph
+            Task.FromResult(new WorkflowActorGraphSubgraph
             {
                 RootNodeId = actorId,
             });
@@ -209,7 +209,7 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             string actorId,
             int depth = 2,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
+            WorkflowActorGraphQueryOptions? options = null,
             CancellationToken ct = default)
         {
             if (Snapshot == null)
@@ -218,7 +218,7 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             return Task.FromResult<WorkflowActorGraphEnrichedSnapshot?>(new WorkflowActorGraphEnrichedSnapshot
             {
                 Snapshot = Snapshot,
-                Subgraph = new WorkflowActorRelationSubgraph
+                Subgraph = new WorkflowActorGraphSubgraph
                 {
                     RootNodeId = actorId,
                 },
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/GlobalUsings.cs b/test/Aevatar.Workflow.Host.Api.Tests/GlobalUsings.cs
index cef2ea8fb..41314584d 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/GlobalUsings.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/GlobalUsings.cs
@@ -1,6 +1,7 @@
 global using Aevatar.AI.Abstractions;
 global using Aevatar.CQRS.Projection.Core.Abstractions;
 global using Aevatar.CQRS.Projection.Stores.Abstractions;
+global using Aevatar.CQRS.Projection.Runtime.Abstractions;
 global using Aevatar.Foundation.Abstractions;
 global using Aevatar.Workflow.Abstractions;
 global using Xunit;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
index b6695c22a..aff922f38 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowCapabilityEndpointsCoverageTests.cs
@@ -245,20 +245,20 @@ public Task<IReadOnlyList<WorkflowAgentSummary>> ListAgentsAsync(CancellationTok
         public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(string actorId, int take = 200, CancellationToken ct = default) =>
             Task.FromResult<IReadOnlyList<WorkflowActorTimelineItem>>([]);
 
-        public Task<IReadOnlyList<WorkflowActorRelationItem>> ListActorRelationsAsync(
+        public Task<IReadOnlyList<WorkflowActorGraphEdge>> ListActorGraphEdgesAsync(
             string actorId,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
+            WorkflowActorGraphQueryOptions? options = null,
             CancellationToken ct = default) =>
-            Task.FromResult<IReadOnlyList<WorkflowActorRelationItem>>([]);
+            Task.FromResult<IReadOnlyList<WorkflowActorGraphEdge>>([]);
 
-        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        public Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
             string actorId,
             int depth = 2,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
+            WorkflowActorGraphQueryOptions? options = null,
             CancellationToken ct = default) =>
-            Task.FromResult(new WorkflowActorRelationSubgraph
+            Task.FromResult(new WorkflowActorGraphSubgraph
             {
                 RootNodeId = actorId,
             });
@@ -267,7 +267,7 @@ public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
             string actorId,
             int depth = 2,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
+            WorkflowActorGraphQueryOptions? options = null,
             CancellationToken ct = default) =>
             Task.FromResult<WorkflowActorGraphEnrichedSnapshot?>(null);
     }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 8dcf7d9c0..db1ede0f0 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -39,15 +39,15 @@ public async Task AddWorkflowExecutionProjectionCQRS_ShouldResolveInMemoryDocume
 
         await using var provider = services.BuildServiceProvider();
         var documentStore = provider.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>();
-        var readModelStore = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        var relationStore = provider.GetRequiredService<IProjectionRelationStore>();
-        var graphStore = provider.GetRequiredService<IGraphProjectionStore<WorkflowExecutionReport>>();
+        var readModelStore = provider.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>();
+        var relationStore = provider.GetRequiredService<IProjectionGraphStore>();
+        var graphStore = provider.GetRequiredService<IProjectionGraphMaterializer<WorkflowExecutionReport>>();
         var router = provider.GetRequiredService<IProjectionMaterializationRouter<WorkflowExecutionReport, string>>();
 
         documentStore.Should().BeOfType<InMemoryProjectionReadModelStore<WorkflowExecutionReport, string>>();
         readModelStore.Should().BeOfType<InMemoryProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        relationStore.Should().BeOfType<InMemoryProjectionRelationStore>();
-        graphStore.Should().BeOfType<ProjectionGraphStoreAdapter<WorkflowExecutionReport>>();
+        relationStore.Should().BeOfType<InMemoryProjectionGraphStore>();
+        graphStore.Should().BeOfType<ProjectionGraphMaterializer<WorkflowExecutionReport>>();
         router.Should().NotBeNull();
 
         Func<Task> act = () => StartHostedServicesAsync(provider);
@@ -62,17 +62,17 @@ public void AddWorkflowExecutionProjectionCQRS_WhenDocumentElasticsearchAndGraph
         RegisterElasticsearchDocumentProvider(services);
         ConfigureStoreSelectionOptions(services, options =>
         {
-            options.DocumentProvider = ProjectionReadModelProviderNames.Elasticsearch;
-            options.GraphProvider = ProjectionReadModelProviderNames.InMemory;
+            options.DocumentProvider = ProjectionProviderNames.Elasticsearch;
+            options.GraphProvider = ProjectionProviderNames.InMemory;
         });
         services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
-        var readModelStore = provider.GetRequiredService<IProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        var relationStore = provider.GetRequiredService<IProjectionRelationStore>();
+        var readModelStore = provider.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>();
+        var relationStore = provider.GetRequiredService<IProjectionGraphStore>();
 
         readModelStore.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        relationStore.Should().BeOfType<InMemoryProjectionRelationStore>();
+        relationStore.Should().BeOfType<InMemoryProjectionGraphStore>();
     }
 
     [Fact]
@@ -82,13 +82,13 @@ public void AddWorkflowExecutionProjectionCQRS_WhenGraphProviderMissing_ShouldTh
         RegisterElasticsearchDocumentProvider(services);
         ConfigureStoreSelectionOptions(services, options =>
         {
-            options.DocumentProvider = ProjectionReadModelProviderNames.Elasticsearch;
-            options.GraphProvider = ProjectionReadModelProviderNames.Elasticsearch;
+            options.DocumentProvider = ProjectionProviderNames.Elasticsearch;
+            options.GraphProvider = ProjectionProviderNames.Elasticsearch;
         });
         services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
-        Action act = () => provider.GetRequiredService<IProjectionRelationStore>();
+        Action act = () => provider.GetRequiredService<IProjectionGraphStore>();
 
         act.Should().Throw<ProjectionProviderSelectionException>()
             .WithMessage("*No relation store provider registrations were found*");
@@ -122,13 +122,13 @@ private static void RegisterElasticsearchDocumentProvider(IServiceCollection ser
 
     private static void ConfigureStoreSelectionOptions(
         IServiceCollection services,
-        Action<ProjectionReadModelRuntimeOptions> configure)
+        Action<ProjectionStoreRuntimeOptions> configure)
     {
-        var options = new ProjectionReadModelRuntimeOptions();
+        var options = new ProjectionStoreRuntimeOptions();
         configure(options);
         services.Replace(ServiceDescriptor.Singleton(options));
         services.Replace(ServiceDescriptor.Singleton<IProjectionStoreSelectionRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionReadModelRuntimeOptions>()));
+            sp.GetRequiredService<ProjectionStoreRuntimeOptions>()));
     }
 
     private static async Task StartHostedServicesAsync(IServiceProvider provider)
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
index 977470bbd..9edd8701a 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
@@ -540,8 +540,8 @@ private static ProjectionPortsHarness CreateService(
         var subscriptionHub = new ActorStreamSubscriptionHub<EventEnvelope>(streams);
         store = new ObservableWorkflowExecutionReadModelStore();
         var resolvedClock = clock ?? new SystemProjectionClock();
-        var relationStore = new InMemoryProjectionRelationStore();
-        var graphStore = new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(relationStore);
+        var relationStore = new InMemoryProjectionGraphStore();
+        var graphStore = new ProjectionGraphMaterializer<WorkflowExecutionReport>(relationStore);
         var materializationRouter = new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
             store,
             graphStore);
@@ -589,7 +589,7 @@ private static ProjectionPortsHarness CreateService(
         var queryReader = new WorkflowProjectionQueryReader(
             store,
             mapper,
-            graphStore);
+            relationStore);
         var activationService = new WorkflowProjectionActivationService(
             lifecycle,
             resolvedClock,
@@ -621,8 +621,8 @@ private static ProjectionPortsHarness CreateServiceForStartFailure(
     {
         var store = CreateStore();
         var clock = new SystemProjectionClock();
-        var relationStore = new InMemoryProjectionRelationStore();
-        var graphStore = new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(relationStore);
+        var relationStore = new InMemoryProjectionGraphStore();
+        var graphStore = new ProjectionGraphMaterializer<WorkflowExecutionReport>(relationStore);
         var materializationRouter = new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
             store,
             graphStore);
@@ -635,7 +635,7 @@ private static ProjectionPortsHarness CreateServiceForStartFailure(
         var queryReader = new WorkflowProjectionQueryReader(
             store,
             mapper,
-            graphStore);
+            relationStore);
         var activationService = new WorkflowProjectionActivationService(
             lifecycle,
             clock,
@@ -800,32 +800,32 @@ public Task<IReadOnlyList<WorkflowActorTimelineItem>> ListActorTimelineAsync(
             CancellationToken ct = default)
             => _queryPort.ListActorTimelineAsync(actorId, take, ct);
 
-        public Task<IReadOnlyList<WorkflowActorRelationItem>> GetActorRelationsAsync(
+        public Task<IReadOnlyList<WorkflowActorGraphEdge>> GetActorGraphEdgesAsync(
             string actorId,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
+            WorkflowActorGraphQueryOptions? options = null,
             CancellationToken ct = default)
-            => _queryPort.GetActorRelationsAsync(actorId, take, options, ct);
+            => _queryPort.GetActorGraphEdgesAsync(actorId, take, options, ct);
 
-        public Task<WorkflowActorRelationSubgraph> GetActorRelationSubgraphAsync(
+        public Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
             string actorId,
             int depth = 2,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
+            WorkflowActorGraphQueryOptions? options = null,
             CancellationToken ct = default)
-            => _queryPort.GetActorRelationSubgraphAsync(actorId, depth, take, options, ct);
+            => _queryPort.GetActorGraphSubgraphAsync(actorId, depth, take, options, ct);
 
         public Task<WorkflowActorGraphEnrichedSnapshot?> GetActorGraphEnrichedSnapshotAsync(
             string actorId,
             int depth = 2,
             int take = 200,
-            WorkflowActorRelationQueryOptions? options = null,
+            WorkflowActorGraphQueryOptions? options = null,
             CancellationToken ct = default)
             => _queryPort.GetActorGraphEnrichedSnapshotAsync(actorId, depth, take, options, ct);
     }
 
     private sealed class ObservableWorkflowExecutionReadModelStore
-        : IProjectionReadModelStore<WorkflowExecutionReport, string>
+        : IDocumentProjectionStore<WorkflowExecutionReport, string>
     {
         private readonly InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> _inner = CreateStore();
         private readonly object _gate = new();
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
index aee77fa68..844eba5f4 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
@@ -29,7 +29,7 @@ private static IProjectionMaterializationRouter<WorkflowExecutionReport, string>
         InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> store) =>
         new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
             store,
-            new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(new InMemoryProjectionRelationStore()));
+            new ProjectionGraphMaterializer<WorkflowExecutionReport>(new InMemoryProjectionGraphStore()));
 
     private static IReadOnlyList<IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>> BuildReducers() =>
     [
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index c3da3857b..508e1bf72 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -45,7 +45,7 @@ public async Task AddWorkflowCapabilityWithAIDefaults_ShouldRegisterWorkflowAndA
 
         builder.Services.Any(x => x.ServiceType == typeof(IWorkflowRunRequestExecutor)).Should().BeTrue();
         builder.Services.Any(x => x.ServiceType == typeof(IWorkflowRunActorPort)).Should().BeTrue();
-        builder.Services.Any(x => x.ServiceType == typeof(IProjectionReadModelStore<WorkflowExecutionReport, string>)).Should().BeTrue();
+        builder.Services.Any(x => x.ServiceType == typeof(IDocumentProjectionStore<WorkflowExecutionReport, string>)).Should().BeTrue();
 
         await using var provider = builder.Services.BuildServiceProvider();
         provider.GetService<ILLMProviderFactory>().Should().NotBeNull();
@@ -66,12 +66,12 @@ public void AddWorkflowCapabilityWithAIDefaults_ShouldRegisterReadModelProviders
         builder.AddWorkflowCapabilityWithAIDefaults();
 
         var providerRegistrations = builder.Services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionReadModelStore<WorkflowExecutionReport, string>>))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IDocumentProjectionStore<WorkflowExecutionReport, string>>))
             .ToList();
         providerRegistrations.Should().HaveCount(1);
 
         var relationRegistrations = builder.Services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionRelationStore>))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionGraphStore>))
             .ToList();
         relationRegistrations.Should().HaveCount(1);
     }
@@ -86,12 +86,12 @@ public void AddWorkflowProjectionReadModelProviders_MultipleCalls_ShouldBeIdempo
         services.AddWorkflowProjectionReadModelProviders(configuration);
 
         var providerRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionReadModelStore<WorkflowExecutionReport, string>>))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IDocumentProjectionStore<WorkflowExecutionReport, string>>))
             .ToList();
         providerRegistrations.Should().HaveCount(1);
 
         var relationRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionRelationStore>))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionGraphStore>))
             .ToList();
         relationRegistrations.Should().HaveCount(1);
     }
@@ -103,8 +103,8 @@ public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_S
         var configuration = new ConfigurationBuilder()
             .AddInMemoryCollection(new Dictionary<string, string?>
             {
-                ["Projection:Document:Provider"] = ProjectionReadModelProviderNames.Elasticsearch,
-                ["Projection:Graph:Provider"] = ProjectionReadModelProviderNames.InMemory,
+                ["Projection:Document:Provider"] = ProjectionProviderNames.Elasticsearch,
+                ["Projection:Graph:Provider"] = ProjectionProviderNames.InMemory,
                 ["Projection:Document:Providers:Elasticsearch:Endpoints:0"] = "http://localhost:9200",
             })
             .Build();
@@ -112,10 +112,10 @@ public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_S
         services.AddWorkflowProjectionReadModelProviders(configuration);
 
         var providerRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionReadModelStore<WorkflowExecutionReport, string>>))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IDocumentProjectionStore<WorkflowExecutionReport, string>>))
             .ToList();
         var relationRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionRelationStore>))
+            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionGraphStore>))
             .ToList();
         var selectionOptionsRegistrations = services
             .Where(x => x.ServiceType == typeof(IProjectionStoreSelectionRuntimeOptions))
@@ -127,8 +127,8 @@ public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_S
 
         using var provider = services.BuildServiceProvider();
         var selectionOptions = provider.GetRequiredService<IProjectionStoreSelectionRuntimeOptions>();
-        selectionOptions.DocumentProvider.Should().Be(ProjectionReadModelProviderNames.Elasticsearch);
-        selectionOptions.GraphProvider.Should().Be(ProjectionReadModelProviderNames.InMemory);
+        selectionOptions.DocumentProvider.Should().Be(ProjectionProviderNames.Elasticsearch);
+        selectionOptions.GraphProvider.Should().Be(ProjectionProviderNames.InMemory);
     }
 
     [Fact]
@@ -155,8 +155,8 @@ public void AddWorkflowProjectionReadModelProviders_WhenPolicyDeniesInMemoryRela
         var configuration = new ConfigurationBuilder()
             .AddInMemoryCollection(new Dictionary<string, string?>
             {
-                ["Projection:Document:Provider"] = ProjectionReadModelProviderNames.Elasticsearch,
-                ["Projection:Graph:Provider"] = ProjectionReadModelProviderNames.InMemory,
+                ["Projection:Document:Provider"] = ProjectionProviderNames.Elasticsearch,
+                ["Projection:Graph:Provider"] = ProjectionProviderNames.InMemory,
                 ["Projection:Document:Providers:Elasticsearch:Endpoints:0"] = "http://localhost:9200",
                 ["Projection:Policies:DenyInMemoryGraphFactStore"] = "true",
             })
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
index 9f31ae9ba..e02c802c1 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
@@ -94,7 +94,7 @@ await store.UpsertAsync(new WorkflowExecutionReport
         var updater = new WorkflowProjectionReadModelUpdater(
             new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
                 store,
-                new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(new InMemoryProjectionRelationStore())),
+                new ProjectionGraphMaterializer<WorkflowExecutionReport>(new InMemoryProjectionGraphStore())),
             new FixedClock(stoppedAt));
         var context = new WorkflowExecutionProjectionContext
         {
@@ -167,7 +167,7 @@ await store.UpsertAsync(new WorkflowExecutionReport
         var reader = new WorkflowProjectionQueryReader(
             store,
             new WorkflowExecutionReadModelMapper(),
-            new ProjectionGraphStoreAdapter<WorkflowExecutionReport>(new InMemoryProjectionRelationStore()));
+            new InMemoryProjectionGraphStore());
 
         var snapshot = await reader.GetActorSnapshotAsync("actor-3");
         var timeline = await reader.ListActorTimelineAsync("actor-3", take: 2);
diff --git a/tools/ci/architecture_guards.sh b/tools/ci/architecture_guards.sh
index 985a20930..af334e5a9 100755
--- a/tools/ci/architecture_guards.sh
+++ b/tools/ci/architecture_guards.sh
@@ -52,6 +52,16 @@ if rg -n "GetAwaiter\(\)\.GetResult\(\)" src; then
   exit 1
 fi
 
+if rg -n "IProjectionReadModelBindingResolver|ProjectionReadModelBindingResolver|ProjectionReadModelBindingException" src test; then
+  echo "BindingResolver-based projection routing is forbidden. Use capability-based Document/Graph routing."
+  exit 1
+fi
+
+if rg -n "Projection:ReadModel:Bindings" src test; then
+  echo "Projection:ReadModel:Bindings is forbidden. Use Projection:Document:* and Projection:Graph:* options."
+  exit 1
+fi
+
 if [ -f "src/Aevatar.Foundation.Core/EventSourcing/DefaultAutoPersistedStateEventFactory.cs" ]; then
   echo "DefaultAutoPersistedStateEventFactory is forbidden. EventStore must persist domain events, not snapshot-state events."
   exit 1

From 70a5682b15a8d29a0a83e020d543891cba18b72f Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 00:39:05 +0800
Subject: [PATCH 30/46] Refactor Projection ReadModel and Provider Architecture
 for Enhanced Clarity and Functionality

- Updated the Projection ReadModel documentation to reflect the latest architectural changes, including the removal of the capabilities model and the introduction of explicit provider selection.
- Refactored the Elasticsearch, InMemory, and Neo4j providers to eliminate deprecated capabilities and streamline provider registration.
- Introduced new startup validators for document and graph providers to ensure robust validation during initialization.
- Enhanced dependency injection configurations to support the updated architecture and improve service registration clarity.
- Improved overall documentation to provide clearer guidance on the new abstractions and provider functionalities.
---
 ...readmodel-full-refactor-plan-2026-02-24.md | 345 ++++++++++++++----
 .../ServiceCollectionExtensions.cs            |   6 -
 .../ElasticsearchProjectionReadModelStore.cs  |  23 +-
 .../ServiceCollectionExtensions.cs            |  12 -
 .../Stores/InMemoryProjectionGraphStore.cs    |   9 +-
 .../InMemoryProjectionReadModelStore.cs       |  20 +-
 .../ServiceCollectionExtensions.cs            |  16 -
 .../Stores/Neo4jProjectionGraphStore.cs       |  17 +-
 .../Stores/Neo4jProjectionReadModelStore.cs   |  19 +-
 .../DelegateProjectionStoreRegistration.cs    |   5 -
 .../Core/IProjectionStoreRegistration.cs      |   2 -
 .../IProjectionDocumentRuntimeOptions.cs      |   8 +
 .../IProjectionDocumentStartupValidator.cs    |   9 +
 .../ProjectionDocumentRuntimeOptions.cs       |   8 +
 .../ProjectionDocumentSelectionOptions.cs}    |   4 +-
 .../Graphs/IProjectionGraphRuntimeOptions.cs  |   8 +
 .../IProjectionGraphStartupValidator.cs       |   8 +
 .../Graphs/IProjectionGraphStoreFactory.cs    |   3 +-
 .../IProjectionGraphStoreProviderSelector.cs  |   3 +-
 .../Graphs/ProjectionGraphRuntimeOptions.cs   |   8 +
 .../Graphs/ProjectionGraphSelectionOptions.cs |   6 +
 .../IProjectionDocumentStoreFactory.cs        |   3 +-
 ...ProjectionDocumentStoreProviderSelector.cs |   3 +-
 .../IProjectionProviderCapabilityValidator.cs |  13 -
 .../ProjectionDocumentStoreSelector.cs        |  23 --
 .../ReadModels/ProjectionIndexKind.cs         |   8 -
 .../ProjectionProviderCapabilities.cs         |  54 ---
 ...onProviderCapabilityValidationException.cs |  32 --
 .../ProjectionProviderCapabilityValidator.cs  |  68 ----
 .../ReadModels/ProjectionStoreMode.cs         |   8 -
 .../ReadModels/ProjectionStoreRequirements.cs |  42 ---
 .../ProjectionStoreRuntimeOptions.cs          |  20 -
 .../IProjectionStoreSelectionPlanner.cs       |   9 -
 ...IProjectionStoreSelectionRuntimeOptions.cs |  12 -
 .../IProjectionStoreStartupValidator.cs       |  15 -
 .../Selection/ProjectionStoreSelectionPlan.cs |   7 -
 .../Selection/ProjectionStoreSelector.cs      |  87 -----
 .../README.md                                 |  21 +-
 .../ServiceCollectionExtensions.cs            |   5 +-
 src/Aevatar.CQRS.Projection.Runtime/README.md |  18 +-
 .../ProjectionDocumentStartupValidator.cs     |  27 ++
 .../Runtime/ProjectionDocumentStoreFactory.cs |   6 +-
 ...ProjectionDocumentStoreProviderSelector.cs | 109 +++---
 .../ProjectionGraphStartupValidator.cs        |  26 ++
 .../Runtime/ProjectionGraphStoreFactory.cs    |   6 +-
 .../ProjectionGraphStoreProviderSelector.cs   |  63 +++-
 ...ctionProviderCapabilityValidatorService.cs |  15 -
 .../ProjectionStoreSelectionPlanner.cs        |  95 -----
 .../ProjectionStoreStartupValidator.cs        |  48 ---
 .../ServiceCollectionExtensions.cs            |  41 ++-
 ...ReadModelStartupValidationHostedService.cs |  46 +--
 .../Aevatar.Workflow.Projection/README.md     |   6 +-
 ...tionProviderServiceCollectionExtensions.cs |  22 +-
 ...chProjectionReadModelStoreBehaviorTests.cs |  15 -
 .../ProjectionReadModelRuntimeTests.cs        |  43 +--
 .../ProjectionReadModelStoreSelectorTests.cs  | 152 +++-----
 .../ProjectionStoreSelectionPlannerTests.cs   | 101 -----
 ...lowExecutionProjectionRegistrationTests.cs |  45 ++-
 .../WorkflowHostingExtensionsCoverageTests.cs |  17 +-
 59 files changed, 723 insertions(+), 1147 deletions(-)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentStartupValidator.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs
 rename src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/{ReadModels/ProjectionStoreSelectionOptions.cs => Documents/ProjectionDocumentSelectionOptions.cs} (50%)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStartupValidator.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphSelectionOptions.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionProviderCapabilityValidator.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionDocumentStoreSelector.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionIndexKind.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilities.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidationException.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidator.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreMode.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRequirements.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRuntimeOptions.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStartupValidator.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStartupValidator.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionProviderCapabilityValidatorService.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
 delete mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs

diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
index 4ef0b76fa..fe2e50db7 100644
--- a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
+++ b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
@@ -1,87 +1,298 @@
-# Projection Abstractions 重构落地报告（v6，无兼容）
-
-> 日期：2026-02-24
-
-## 1. 本次重构已完成内容
-
-1. 新增 `Aevatar.CQRS.Projection.Runtime.Abstractions`，承接 Runtime 策略/选择/Factory/Materialization 契约。
-2. `Aevatar.CQRS.Projection.Stores.Abstractions` 彻底收敛为纯存储契约：
-   - 仅保留 `IDocumentProjectionStore<,>`、`IProjectionGraphStore`、ReadModel/Graph 结构描述。
-   - 删除 Selection/Core 运行时编排抽象（迁移至 Runtime.Abstractions）。
-3. 删除 Graph 重复抽象：
-   - 删除 `IGraphProjectionStore<TReadModel>`。
-   - 新增 `IProjectionGraphMaterializer<TReadModel>`。
-   - `ProjectionMaterializationRouter` 改为依赖 `IProjectionGraphMaterializer<TReadModel>`。
-4. Runtime 实现落地：
-   - `ProjectionGraphStoreAdapter<TReadModel>` 重构为 `ProjectionGraphMaterializer<TReadModel>`。
-   - DI 改为注册 `IProjectionGraphMaterializer<>`。
-5. Provider 元数据重复抽象清理：
-   - 删除 `IProjectionStoreProviderMetadata`。
-   - Provider 能力统一通过 `IProjectionStoreRegistration.Capabilities` 描述。
-6. 命名语义统一：
-   - `ProjectionDocumentStoreSelectionOptions` -> `ProjectionStoreSelectionOptions`
-   - `ProjectionDocumentRequirements` -> `ProjectionStoreRequirements`
-
-## 2. 当前边界（As-Built）
+# Projection ReadModel 全量重构实施文档（v9，无兼容，无能力模型）
+
+> 日期：2026-02-24  
+> 范围：`Aevatar.CQRS.Projection.Stores.Abstractions`、`Aevatar.CQRS.Projection.Core.Abstractions`、`Aevatar.CQRS.Projection.Runtime.Abstractions`、`Aevatar.CQRS.Projection.Runtime`、`Aevatar.Workflow.Projection`
+
+## 1. 结论先行
+
+核心关系定义：`ReadModel` 与 `ProjectionTarget` 是标准 `1:N` 关系。
+
+当前已实现 `N=2`：
+
+1. `DocumentTarget`（Document Provider 链路）
+2. `GraphTarget`（Graph Provider 链路）
+
+关键决策（本版）：
+
+1. 删除能力模型（`Capabilities/Requirements/CapabilityValidator`）整层。
+2. Provider 选择改为“显式配置 + 启动失败即终止（fail-fast）”，不做能力协商与自动降级。
+3. 索引与关系语义全部保留：
+   - 索引：Document 链路（ES 等）
+   - 关系：Graph 链路（Neo4j 等）
+4. 写入编排保持单次路由、多目标分发（`1:N`）。
+
+## 2. 当前实现诊断（As-Is）
+
+### 2.1 已经对齐的部分
+
+1. `Stores.Abstractions` 已基本收敛为纯存储契约（`IDocumentProjectionStore<,>` + `IProjectionGraphStore`）。
+2. `IGraphProjectionStore<TReadModel>` 已删除，改用 `IProjectionGraphMaterializer<TReadModel>` 作为图写入适配层。
+3. Workflow 查询已直接读取 `IProjectionGraphStore`，不再从 Materializer 读图。
+
+### 2.2 需要继续删除的旧语义
+
+1. 统一计划模型（Doc+Graph 绑定）：
+   - `ProjectionStoreSelectionPlan`
+   - `IProjectionStoreSelectionPlanner`
+   - `ProjectionStoreSelectionPlanner`
+2. 统一能力模型：
+   - `ProjectionProviderCapabilities`
+   - `ProjectionStoreRequirements`
+   - `IProjectionProviderCapabilityValidator`
+   - `ProjectionProviderCapabilityValidator`
+3. 统一启动校验接口：
+   - `IProjectionStoreStartupValidator`
+   - `ProjectionStoreStartupValidator`
+4. Workflow DI 仍使用统一 `BuildSelectionPlan`。
+
+## 3. 目标架构（To-Be）
+
+### 3.1 主链路 + 一对多目标分发
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart LR
-    SA["Aevatar.CQRS.Projection.Stores.Abstractions\nDocument/Graph Store Contracts"]
-    RA["Aevatar.CQRS.Projection.Runtime.Abstractions\nSelection + Provider Registration + Materialization Contracts"]
-    CA["Aevatar.CQRS.Projection.Core.Abstractions\nPipeline Protocol"]
-    RT["Aevatar.CQRS.Projection.Runtime\nRuntime Implementations"]
-    PR["Providers\nInMemory/Elasticsearch/Neo4j"]
-    WF["Workflow.Projection"]
-
-    PR --> SA
-    PR --> RA
-    RT --> SA
-    RT --> RA
-    RT --> CA
-    WF --> SA
-    WF --> RA
-    WF --> CA
+    EVT["Event Stream"] --> RED["Reducer/Projector"]
+    RED --> RM["ReadModel(T)"]
+    RM --> ROUTER["IProjectionMaterializationRouter<T,TKey>"]
+
+    ROUTER --> TARGETS["Projection Targets (1..N)"]
+
+    TARGETS --> DOC_ROUTE["Document Target\n(If T : IDocumentReadModel)"]
+    TARGETS --> GRA_ROUTE["Graph Target\n(If T : IGraphReadModel)"]
+    TARGETS --> EXT_ROUTE["Future Target\n(Extensible)"]
+
+    DOC_ROUTE --> DOC_FACTORY["IProjectionDocumentStoreFactory"]
+    DOC_FACTORY --> DOC_STORE["IDocumentProjectionStore<T,TKey>"]
+
+    GRA_ROUTE --> GRA_MAT["IProjectionGraphMaterializer<T>"]
+    GRA_MAT --> GRA_STORE["IProjectionGraphStore"]
 ```
 
-## 3. 关键契约（最终）
+当前落地状态：`Projection Targets` 已实现 `Document + Graph` 两类目标。
+
+### 3.2 Provider 选择（无能力协商）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart TB
+    DOC_CFG["Projection:Document:Provider"] --> DOC_SEL["DocumentProviderSelector"]
+    DOC_REG["DocumentProviderRegistry"] --> DOC_SEL
+    DOC_SEL --> DOC_FACTORY["DocumentStoreFactory"]
+
+    GRA_CFG["Projection:Graph:Provider"] --> GRA_SEL["GraphProviderSelector"]
+    GRA_REG["GraphProviderRegistry"] --> GRA_SEL
+    GRA_SEL --> GRA_FACTORY["GraphStoreFactory"]
+```
+
+选择规则：
+
+1. 配置必须明确指定 provider（或使用明确默认值）。
+2. 选择器仅做 provider name 匹配与唯一性判断。
+3. 启动时仅做注册存在性 + 基础连接健康检查；失败立即报错退出。
+
+### 3.3 查询组合门面（降低开发负担）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    API["Query API"] --> FACADE["ProjectionQueryFacade"]
+    FACADE --> GQ["GraphQueryReader"]
+    FACADE --> DQ["DocumentQueryReader"]
+    GQ --> NEO["Graph Provider (e.g. Neo4j)"]
+    DQ --> ES["Document Provider (e.g. ES)"]
+    FACADE --> DTO["Enriched Graph DTO"]
+```
+
+说明：业务层只调用 Facade，不再手工双查（先 Neo4j 再 ES）。
+
+## 4. 契约重构（无兼容，直接替换）
+
+### 4.1 保留的核心语义
+
+1. `IDocumentProjectionStore<,>`：文档快照与索引写入。
+2. `IProjectionGraphStore`：图节点/边关系写入与遍历查询。
+3. `IProjectionMaterializationRouter<,>`：单次写入流程的多目标分发。
+4. `IProjectionGraphMaterializer<TReadModel>`：从 ReadModel 派生图节点/边并写入 Graph。
+
+### 4.2 删除的抽象层
+
+删除整层能力协商模型：
+
+1. `ProjectionProviderCapabilities`
+2. `ProjectionStoreRequirements`
+3. `IProjectionProviderCapabilityValidator`
+4. `ProjectionProviderCapabilityValidator`
+5. `ProjectionProviderCapabilityValidationException`
+
+删除统一计划模型：
+
+1. `ProjectionStoreSelectionPlan`
+2. `IProjectionStoreSelectionPlanner`
+3. `ProjectionStoreSelectionPlanner`
+4. `IProjectionStoreSelectionRuntimeOptions`
+5. `ProjectionStoreRuntimeOptions`
+
+### 4.3 新的运行时配置模型
+
+拆为两条独立配置契约：
+
+1. `IProjectionDocumentRuntimeOptions`
+2. `IProjectionGraphRuntimeOptions`
+
+建议最小字段：
+
+1. `ProviderName`
+2. `FailFastOnStartup`
+
+不再包含：`Requirements`、`Capabilities`、`FailOnUnsupportedCapabilities` 等协商语义。
+
+### 4.4 启动校验模型
+
+统一启动校验器拆分为：
+
+1. `IProjectionDocumentStartupValidator`
+2. `IProjectionGraphStartupValidator`
+
+校验范围：
+
+1. 目标 provider 是否注册。
+2. 目标 provider 是否可创建。
+3. 基础连接健康检查（如 ES ping、Neo4j session）。
+
+不再校验：抽象能力矩阵。
+
+## 5. ReadModel 声明模型（保留索引/关系）
+
+目标：开发者只定义 `State + ReadModel`，由 ReadModel 声明决定投影目标。
+
+建议契约（目标态）：
 
 ```csharp
-public interface IProjectionGraphStore
+public interface IProjectionReadModel {}
+
+public interface IDocumentReadModel<TDocumentMetadataProvider> : IProjectionReadModel
+    where TDocumentMetadataProvider : IProjectionDocumentMetadataProvider, new()
 {
-    Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default);
-    Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default);
-    Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default);
-    Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(ProjectionGraphQuery query, CancellationToken ct = default);
-    Task<ProjectionGraphSubgraph> GetSubgraphAsync(ProjectionGraphQuery query, CancellationToken ct = default);
 }
 
-public interface IProjectionGraphMaterializer<in TReadModel>
-    where TReadModel : class
+public interface IGraphReadModel<TGraphDescriptorProvider> : IProjectionReadModel
+    where TGraphDescriptorProvider : IProjectionGraphDescriptorProvider, new()
 {
-    Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct = default);
 }
 ```
 
-## 4. 目录变化（核心）
+语义结果：
+
+1. `T : IDocumentReadModel<...>` -> 进入 DocumentTarget，保留索引能力。
+2. `T : IGraphReadModel<...>` -> 进入 GraphTarget，保留关系能力。
+3. 同时实现两者 -> 同一次流程扇出到两个目标（Doc + Graph）。
+4. 该模型本质是 `1:N`，不是二选一。
+
+## 6. 与项目现状对齐的实施计划
 
-1. 新增项目：`src/Aevatar.CQRS.Projection.Runtime.Abstractions/`
-2. 迁移：
-   - `Stores.Abstractions/Abstractions/Core/*` -> `Runtime.Abstractions/Abstractions/Core/*`
-   - `Stores.Abstractions/Abstractions/Selection/*` -> `Runtime.Abstractions/Abstractions/Selection/*`
-   - `Stores.Abstractions` 中 provider factory/selector/options/capabilities 相关抽象 -> `Runtime.Abstractions`
-3. 删除：
-   - `Stores.Abstractions/Abstractions/ReadModels/IGraphProjectionStore.cs`
-   - `Runtime.Abstractions/Abstractions/Core/IProjectionStoreProviderMetadata.cs`
+### Phase 1：删除统一计划与能力模型（Runtime.Abstractions）
 
-## 5. 验证状态
+删除文件（按现有路径）：
 
-1. `dotnet build aevatar.slnx --nologo`：通过。
+1. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs`
+2. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs`
+3. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs`
+4. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs`
+5. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs`
+6. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRuntimeOptions.cs`
+7. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRequirements.cs`
+8. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreSelectionOptions.cs`
+9. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilities.cs`
+10. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionProviderCapabilityValidator.cs`
+11. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidator.cs`
+12. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidationException.cs`
+
+新增文件（示例命名）：
+
+1. `Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs`
+2. `Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs`
+3. `Abstractions/Documents/ProjectionDocumentSelectionOptions.cs`
+4. `Abstractions/Documents/IProjectionDocumentStartupValidator.cs`
+5. `Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs`
+6. `Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs`
+7. `Abstractions/Graphs/ProjectionGraphSelectionOptions.cs`
+8. `Abstractions/Graphs/IProjectionGraphStartupValidator.cs`
+
+### Phase 2：Runtime 实现替换（无能力协商）
+
+1. 删除 `Runtime/ProjectionStoreSelectionPlanner.cs`。
+2. 删除 `Runtime/ProjectionStoreStartupValidator.cs`，拆分实现：
+   - `Runtime/ProjectionDocumentStartupValidator.cs`
+   - `Runtime/ProjectionGraphStartupValidator.cs`
+3. 删除 `Runtime/ProjectionProviderCapabilityValidatorService.cs`。
+4. `ProjectionDocumentStoreFactory` 与 `ProjectionGraphStoreFactory` 改为仅接收对应 `SelectionOptions`。
+5. `ProjectionDocumentStoreProviderSelector` 与 `ProjectionGraphStoreProviderSelector` 去掉 `requirements/capabilityValidator` 参数。
+
+### Phase 3：Workflow 依赖替换
+
+改造文件：
+
+1. `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`
+   - 删除 `BuildSelectionPlan`。
+   - 文档与图分别读取各自 runtime options。
+2. `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs`
+   - 注入拆分后的 Document/Graph StartupValidator。
+3. `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
+   - 分别注册 `ProjectionDocumentRuntimeOptions` 与 `ProjectionGraphRuntimeOptions`。
+
+### Phase 4：ReadModel 泛型声明落地（索引与关系显式化）
+
+1. `Stores.Abstractions` 将 `IDocumentReadModel`、`IGraphReadModel` 升级为泛型声明。
+2. Document metadata 由 ReadModel 泛型 provider 提供（索引名、mapping、alias）。
+3. Graph descriptor 由 ReadModel 泛型 provider 提供（节点与边关系定义）。
+
+### Phase 5：查询门面落地
+
+1. 在 `Workflow.Projection` 增加 `ProjectionQueryFacade`。
+2. 提供单入口：输入 rootId，返回文档快照 + 图子图（可选深度）。
+3. API 仅依赖 Facade，不直接双查存储。
+
+### Phase 6：测试与门禁
+
+1. 删除或重写依赖 `ProjectionStoreSelectionPlan`、`ProjectionStoreRequirements`、`ProjectionProviderCapabilities` 的测试。
+2. 新增测试：
+   - Document provider selection（name match/unique/fail-fast）
+   - Graph provider selection（name match/unique/fail-fast）
+   - Router `1:N` 扇出写入
+   - Query facade 组合查询
+3. `tools/ci/architecture_guards.sh` 增加规则：
+   - 禁止 `ProjectionStoreSelectionPlan` 回流。
+   - 禁止 `ProjectionStoreRequirements` 回流。
+   - 禁止 `ProjectionProviderCapabilities` 回流。
+   - 禁止 `CapabilityValidator` 回流。
+
+## 7. 验收标准
+
+全部满足即重构完成：
+
+1. `Runtime.Abstractions` 与 `Runtime` 中不再存在能力协商模型（Capabilities/Requirements/Validator）。
+2. `MaterializationRouter` 明确采用 `ReadModel -> Targets(1:N)` 扇出模型，当前 `N=2`（Document、Graph）。
+3. ReadModel 同时声明文档与图能力时，单流程双写可用。
+4. Document 索引语义保留并可验证（metadata 生效）。
+5. Graph 关系语义保留并可验证（节点/边写入与遍历查询可用）。
+6. Workflow 查询提供单门面，业务方无需手工双查。
+
+## 8. 验证命令
+
+```bash
+dotnet restore aevatar.slnx --nologo
+dotnet build aevatar.slnx --nologo
+dotnet test aevatar.slnx --nologo
+bash tools/ci/architecture_guards.sh
+bash tools/ci/projection_route_mapping_guard.sh
+bash tools/ci/solution_split_guards.sh
+bash tools/ci/solution_split_test_guards.sh
+bash tools/ci/test_stability_guards.sh
+```
 
-## 6. 后续可选收敛（非兼容）
+## 9. 执行策略
 
-1. 进一步收敛 `Core.Abstractions`：评估将 `IProjectionDispatcher/IProjectionCoordinator/IProjectionSubscriptionRegistry` 由对外契约下沉为实现细节。
-2. 在 `architecture_guards.sh` 增补硬约束：
-   - 禁止 `Stores.Abstractions` 回流 `Selection/*` 契约。
-   - 禁止 `IGraphProjectionStore<` 回流。
-3. 文档全仓术语收敛：`Runtime.Abstractions` 引用补齐（README/架构图/审计文档）。
+1. 删除优先，不保留兼容层与转发壳。
+2. 所有旧命名（`ProjectionStore*` 统一计划/能力模型）直接移除。
+3. 编译失败点逐项修复到新语义。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index d36bcb12f..910a0b83f 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -23,12 +23,6 @@ public static IServiceCollection AddElasticsearchDocumentStoreRegistration<TRead
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
                 providerName,
-                new ProjectionProviderCapabilities(
-                    providerName,
-                    supportsIndexing: true,
-                    indexKinds: [ProjectionIndexKind.Document],
-                    supportsAliases: false,
-                    supportsSchemaValidation: false),
                 provider => new ElasticsearchProjectionReadModelStore<TReadModel, TKey>(
                     optionsFactory(provider),
                     indexScopeFactory(provider),
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
index a11526496..327716c4b 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
@@ -25,6 +25,7 @@ public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
     private readonly string _listSortField;
     private readonly ElasticsearchMissingIndexBehavior _missingIndexBehavior;
     private readonly int _mutateMaxRetryCount;
+    private readonly string _providerName;
     private readonly ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>> _logger;
     private readonly SemaphoreSlim _indexInitializationLock = new(1, 1);
     private readonly JsonSerializerOptions _jsonOptions = new()
@@ -68,15 +69,15 @@ public ElasticsearchProjectionReadModelStore(
         _autoCreateIndex = options.AutoCreateIndex;
         _missingIndexBehavior = options.MissingIndexBehavior;
         _mutateMaxRetryCount = Math.Clamp(options.MutateMaxRetryCount, 0, 20);
+        _providerName = string.IsNullOrWhiteSpace(providerName)
+            ? ProjectionProviderNames.Elasticsearch
+            : providerName.Trim();
         _keySelector = keySelector;
         _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
         _listSortField = options.ListSortField?.Trim() ?? "";
         _logger = logger ?? NullLogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>.Instance;
-        ProviderCapabilities = BuildCapabilities(providerName);
     }
 
-    public ProjectionProviderCapabilities ProviderCapabilities { get; }
-
     public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default) =>
         UpsertCoreAsync(readModel, allowCreateIndex: true, ct);
 
@@ -127,7 +128,7 @@ await UpsertCoreAsync(
                 _logger.LogWarning(
                     ex,
                     "Projection read-model optimistic concurrency conflict. provider={Provider} readModelType={ReadModelType} key={Key} attempt={Attempt}/{MaxAttempts}",
-                    ProviderCapabilities.ProviderName,
+                    _providerName,
                     typeof(TReadModel).FullName,
                     keyValue,
                     attempt + 1,
@@ -282,7 +283,7 @@ private async Task UpsertCoreAsync(
             var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
             _logger.LogInformation(
                 "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
-                ProviderCapabilities.ProviderName,
+                _providerName,
                 typeof(TReadModel).FullName,
                 keyValue,
                 elapsedMs,
@@ -318,7 +319,7 @@ private bool TryHandleMissingIndexForRead(string operation, string payload)
 
         _logger.LogWarning(
             "Projection read-model index is missing. provider={Provider} readModelType={ReadModelType} index={Index} operation={Operation} behavior={Behavior}",
-            ProviderCapabilities.ProviderName,
+            _providerName,
             typeof(TReadModel).FullName,
             _indexName,
             operation,
@@ -348,7 +349,7 @@ private void LogWriteFailure(
         _logger.LogError(
             ex,
             "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-            ProviderCapabilities.ProviderName,
+            _providerName,
             typeof(TReadModel).FullName,
             keyValue,
             elapsedMs,
@@ -543,14 +544,6 @@ private static string TruncatePayload(string payload)
         return payload[..maxLength] + "...(truncated)";
     }
 
-    private static ProjectionProviderCapabilities BuildCapabilities(string providerName) =>
-        new(
-            providerName,
-            supportsIndexing: true,
-            indexKinds: [ProjectionIndexKind.Document],
-            supportsAliases: false,
-            supportsSchemaValidation: false);
-
     public void Dispose()
     {
         _httpClient.Dispose();
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index ffcc283b5..b170a5131 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -20,12 +20,6 @@ public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
                 providerName,
-                new ProjectionProviderCapabilities(
-                    providerName,
-                    supportsIndexing: true,
-                    indexKinds: [ProjectionIndexKind.Document],
-                    supportsGraph: false,
-                    supportsGraphTraversal: false),
                 provider => new InMemoryProjectionReadModelStore<TReadModel, TKey>(
                     keySelector,
                     keyFormatter,
@@ -44,12 +38,6 @@ public static IServiceCollection AddInMemoryGraphStoreRegistration(
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
                 providerName,
-                new ProjectionProviderCapabilities(
-                    providerName,
-                    supportsIndexing: true,
-                    indexKinds: [ProjectionIndexKind.Graph],
-                    supportsGraph: true,
-                    supportsGraphTraversal: true),
                 _ => new InMemoryProjectionGraphStore(providerName)));
 
         return services;
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
index ff4fd350d..8e12a4f4e 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
@@ -13,16 +13,9 @@ public sealed class InMemoryProjectionGraphStore
     public InMemoryProjectionGraphStore(
         string providerName = ProjectionProviderNames.InMemory)
     {
-        ProviderCapabilities = new ProjectionProviderCapabilities(
-            providerName,
-            supportsIndexing: true,
-            indexKinds: [ProjectionIndexKind.Graph],
-            supportsGraph: true,
-            supportsGraphTraversal: true);
+        _ = providerName;
     }
 
-    public ProjectionProviderCapabilities ProviderCapabilities { get; }
-
     public Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(node);
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
index 6582bf42b..617a1db1a 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
@@ -14,6 +14,7 @@ public sealed class InMemoryProjectionReadModelStore<TReadModel, TKey>
     private readonly Func<TKey, string> _keyFormatter;
     private readonly Func<TReadModel, object?>? _listSortSelector;
     private readonly int _listTakeMax;
+    private readonly string _providerName;
     private readonly ILogger<InMemoryProjectionReadModelStore<TReadModel, TKey>> _logger;
     private readonly JsonSerializerOptions _jsonOptions = new();
 
@@ -30,17 +31,12 @@ public InMemoryProjectionReadModelStore(
         _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
         _listSortSelector = listSortSelector;
         _listTakeMax = listTakeMax > 0 ? listTakeMax : 200;
+        _providerName = string.IsNullOrWhiteSpace(providerName)
+            ? ProjectionProviderNames.InMemory
+            : providerName.Trim();
         _logger = logger ?? NullLogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>.Instance;
-        ProviderCapabilities = new ProjectionProviderCapabilities(
-            providerName,
-            supportsIndexing: true,
-            indexKinds: [ProjectionIndexKind.Document],
-            supportsGraph: false,
-            supportsGraphTraversal: false);
     }
 
-    public ProjectionProviderCapabilities ProviderCapabilities { get; }
-
     public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(readModel);
@@ -57,7 +53,7 @@ public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
             var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
             _logger.LogInformation(
                 "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
-                ProviderCapabilities.ProviderName,
+                _providerName,
                 typeof(TReadModel).FullName,
                 key,
                 elapsedMs,
@@ -70,7 +66,7 @@ public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
             _logger.LogError(
                 ex,
                 "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-                ProviderCapabilities.ProviderName,
+                _providerName,
                 typeof(TReadModel).FullName,
                 key,
                 elapsedMs,
@@ -101,7 +97,7 @@ public Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken c
             var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
             _logger.LogInformation(
                 "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
-                ProviderCapabilities.ProviderName,
+                _providerName,
                 typeof(TReadModel).FullName,
                 keyValue,
                 elapsedMs,
@@ -114,7 +110,7 @@ public Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken c
             _logger.LogError(
                 ex,
                 "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-                ProviderCapabilities.ProviderName,
+                _providerName,
                 typeof(TReadModel).FullName,
                 keyValue,
                 elapsedMs,
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index 83de8cf34..6b762b6a8 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -23,14 +23,6 @@ public static IServiceCollection AddNeo4jDocumentStoreRegistration<TReadModel, T
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
                 providerName,
-                new ProjectionProviderCapabilities(
-                    providerName,
-                    supportsIndexing: true,
-                    indexKinds: [ProjectionIndexKind.Graph],
-                    supportsAliases: false,
-                    supportsSchemaValidation: true,
-                    supportsGraph: true,
-                    supportsGraphTraversal: true),
                 provider => new Neo4jProjectionReadModelStore<TReadModel, TKey>(
                     optionsFactory(provider),
                     scopeFactory(provider),
@@ -54,14 +46,6 @@ public static IServiceCollection AddNeo4jGraphStoreRegistration(
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
                 providerName,
-                new ProjectionProviderCapabilities(
-                    providerName,
-                    supportsIndexing: true,
-                    indexKinds: [ProjectionIndexKind.Graph],
-                    supportsAliases: false,
-                    supportsSchemaValidation: true,
-                    supportsGraph: true,
-                    supportsGraphTraversal: true),
                 provider => new Neo4jProjectionGraphStore(
                     optionsFactory(provider),
                     scopeFactory(provider),
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
index f5b5e811a..45de9a5bb 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
@@ -17,6 +17,7 @@ public sealed class Neo4jProjectionGraphStore
     private readonly string _edgeType;
     private readonly bool _autoCreateConstraints;
     private readonly int _maxTraversalDepth;
+    private readonly string _providerName;
     private readonly ILogger<Neo4jProjectionGraphStore> _logger;
     private readonly SemaphoreSlim _schemaLock = new(1, 1);
     private readonly JsonSerializerOptions _jsonOptions = new()
@@ -40,6 +41,9 @@ public Neo4jProjectionGraphStore(
         _edgeType = NormalizeLabel(options.EdgeType, "PROJECTION_REL");
         _autoCreateConstraints = options.AutoCreateConstraints;
         _maxTraversalDepth = Math.Clamp(options.MaxTraversalDepth, 1, 8);
+        _providerName = string.IsNullOrWhiteSpace(providerName)
+            ? ProjectionProviderNames.Neo4j
+            : providerName.Trim();
         _logger = logger ?? NullLogger<Neo4jProjectionGraphStore>.Instance;
 
         var auth = string.IsNullOrWhiteSpace(options.Username)
@@ -47,19 +51,8 @@ public Neo4jProjectionGraphStore(
             : AuthTokens.Basic(options.Username.Trim(), options.Password ?? "");
         _driver = GraphDatabase.Driver(options.Uri, auth, config =>
             config.WithConnectionTimeout(TimeSpan.FromMilliseconds(Math.Max(1000, options.RequestTimeoutMs))));
-
-        ProviderCapabilities = new ProjectionProviderCapabilities(
-            providerName,
-            supportsIndexing: true,
-            indexKinds: [ProjectionIndexKind.Graph],
-            supportsAliases: false,
-            supportsSchemaValidation: true,
-            supportsGraph: true,
-            supportsGraphTraversal: true);
     }
 
-    public ProjectionProviderCapabilities ProviderCapabilities { get; }
-
     public async Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(node);
@@ -486,7 +479,7 @@ private Dictionary<string, string> DeserializeProperties(string payload)
             _logger.LogWarning(
                 ex,
                 "Failed to deserialize graph edge properties payload. provider={Provider} scope={Scope}",
-                ProviderCapabilities.ProviderName,
+                _providerName,
                 _scope);
             return new Dictionary<string, string>(StringComparer.Ordinal);
         }
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
index 439b69c9c..7f02d8356 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
@@ -19,6 +19,7 @@ public sealed class Neo4jProjectionReadModelStore<TReadModel, TKey>
     private readonly int _listTakeMax;
     private readonly string _label;
     private readonly bool _autoCreateConstraints;
+    private readonly string _providerName;
     private readonly ILogger<Neo4jProjectionReadModelStore<TReadModel, TKey>> _logger;
     private readonly SemaphoreSlim _schemaLock = new(1, 1);
     private readonly JsonSerializerOptions _jsonOptions = new()
@@ -44,6 +45,9 @@ public Neo4jProjectionReadModelStore(
         _listTakeMax = options.ListTakeMax > 0 ? options.ListTakeMax : 200;
         _label = NormalizeLabel(options.NodeLabel);
         _autoCreateConstraints = options.AutoCreateConstraints;
+        _providerName = string.IsNullOrWhiteSpace(providerName)
+            ? ProjectionProviderNames.Neo4j
+            : providerName.Trim();
         _keySelector = keySelector;
         _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
         _logger = logger ?? NullLogger<Neo4jProjectionReadModelStore<TReadModel, TKey>>.Instance;
@@ -53,19 +57,8 @@ public Neo4jProjectionReadModelStore(
             : AuthTokens.Basic(options.Username.Trim(), options.Password ?? "");
         _driver = GraphDatabase.Driver(options.Uri, auth, config =>
             config.WithConnectionTimeout(TimeSpan.FromMilliseconds(Math.Max(1000, options.RequestTimeoutMs))));
-
-        ProviderCapabilities = new ProjectionProviderCapabilities(
-            providerName,
-            supportsIndexing: true,
-            indexKinds: [ProjectionIndexKind.Document, ProjectionIndexKind.Graph],
-            supportsAliases: false,
-            supportsSchemaValidation: true,
-            supportsGraph: true,
-            supportsGraphTraversal: true);
     }
 
-    public ProjectionProviderCapabilities ProviderCapabilities { get; }
-
     public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(readModel);
@@ -93,7 +86,7 @@ public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = defau
             var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
             _logger.LogInformation(
                 "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
-                ProviderCapabilities.ProviderName,
+                _providerName,
                 typeof(TReadModel).FullName,
                 key,
                 elapsedMs,
@@ -273,7 +266,7 @@ private void LogWriteFailure(
         _logger.LogError(
             ex,
             "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-            ProviderCapabilities.ProviderName,
+            _providerName,
             typeof(TReadModel).FullName,
             key,
             elapsedMs,
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
index 617dc1e95..58c36550f 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
@@ -6,23 +6,18 @@ public sealed class DelegateProjectionStoreRegistration<TStore> : IProjectionSto
 
     public DelegateProjectionStoreRegistration(
         string providerName,
-        ProjectionProviderCapabilities capabilities,
         Func<IServiceProvider, TStore> factory)
     {
         if (string.IsNullOrWhiteSpace(providerName))
             throw new ArgumentException("Provider name must not be empty.", nameof(providerName));
-        ArgumentNullException.ThrowIfNull(capabilities);
         ArgumentNullException.ThrowIfNull(factory);
 
         ProviderName = providerName.Trim();
-        Capabilities = capabilities;
         _factory = factory;
     }
 
     public string ProviderName { get; }
 
-    public ProjectionProviderCapabilities Capabilities { get; }
-
     public TStore Create(IServiceProvider serviceProvider)
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
index 4ad98a895..99837a996 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
@@ -3,8 +3,6 @@ namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 public interface IProjectionStoreRegistration
 {
     string ProviderName { get; }
-
-    ProjectionProviderCapabilities Capabilities { get; }
 }
 
 public interface IProjectionStoreRegistration<out TStore> : IProjectionStoreRegistration
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs
new file mode 100644
index 000000000..241d97d2f
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionDocumentRuntimeOptions
+{
+    string ProviderName { get; }
+
+    bool FailFastOnStartup { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentStartupValidator.cs
new file mode 100644
index 000000000..91f4b42f6
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentStartupValidator.cs
@@ -0,0 +1,9 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionDocumentStartupValidator
+{
+    IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> ValidateProvider<TReadModel, TKey>(
+        IServiceProvider serviceProvider,
+        ProjectionDocumentSelectionOptions selectionOptions)
+        where TReadModel : class;
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs
new file mode 100644
index 000000000..92eb4b762
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public sealed class ProjectionDocumentRuntimeOptions : IProjectionDocumentRuntimeOptions
+{
+    public string ProviderName { get; set; } = ProjectionProviderNames.InMemory;
+
+    public bool FailFastOnStartup { get; set; } = true;
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreSelectionOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentSelectionOptions.cs
similarity index 50%
rename from src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreSelectionOptions.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentSelectionOptions.cs
index 33f974691..0269884c4 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreSelectionOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentSelectionOptions.cs
@@ -1,8 +1,6 @@
 namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
-public sealed class ProjectionStoreSelectionOptions
+public sealed class ProjectionDocumentSelectionOptions
 {
     public string RequestedProviderName { get; set; } = "";
-
-    public bool FailOnUnsupportedCapabilities { get; set; } = true;
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs
new file mode 100644
index 000000000..a8f2662b3
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionGraphRuntimeOptions
+{
+    string ProviderName { get; }
+
+    bool FailFastOnStartup { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStartupValidator.cs
new file mode 100644
index 000000000..27eaec634
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStartupValidator.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionGraphStartupValidator
+{
+    IProjectionStoreRegistration<IProjectionGraphStore> ValidateProvider(
+        IServiceProvider serviceProvider,
+        ProjectionGraphSelectionOptions selectionOptions);
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
index 7b8b3ea9e..51882ed82 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
@@ -4,6 +4,5 @@ public interface IProjectionGraphStoreFactory
 {
     IProjectionGraphStore Create(
         IServiceProvider serviceProvider,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements);
+        ProjectionGraphSelectionOptions selectionOptions);
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs
index 3f92b8aad..2e4969e55 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs
@@ -4,6 +4,5 @@ public interface IProjectionGraphStoreProviderSelector
 {
     IProjectionStoreRegistration<IProjectionGraphStore> Select(
         IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> registrations,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements);
+        ProjectionGraphSelectionOptions selectionOptions);
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs
new file mode 100644
index 000000000..536470faf
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs
@@ -0,0 +1,8 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public sealed class ProjectionGraphRuntimeOptions : IProjectionGraphRuntimeOptions
+{
+    public string ProviderName { get; set; } = ProjectionProviderNames.InMemory;
+
+    public bool FailFastOnStartup { get; set; } = true;
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphSelectionOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphSelectionOptions.cs
new file mode 100644
index 000000000..67e3c2a9a
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphSelectionOptions.cs
@@ -0,0 +1,6 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public sealed class ProjectionGraphSelectionOptions
+{
+    public string RequestedProviderName { get; set; } = "";
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
index da2936f8e..1b9eff90d 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
@@ -4,7 +4,6 @@ public interface IProjectionDocumentStoreFactory
 {
     IDocumentProjectionStore<TReadModel, TKey> Create<TReadModel, TKey>(
         IServiceProvider serviceProvider,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements)
+        ProjectionDocumentSelectionOptions selectionOptions)
         where TReadModel : class;
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs
index fec9eadf5..bfa343c78 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs
@@ -4,7 +4,6 @@ public interface IProjectionDocumentStoreProviderSelector
 {
     IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> Select<TReadModel, TKey>(
         IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements)
+        ProjectionDocumentSelectionOptions selectionOptions)
         where TReadModel : class;
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionProviderCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionProviderCapabilityValidator.cs
deleted file mode 100644
index c556bab59..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionProviderCapabilityValidator.cs
+++ /dev/null
@@ -1,13 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionProviderCapabilityValidator
-{
-    IReadOnlyList<string> Validate(
-        ProjectionStoreRequirements requirements,
-        ProjectionProviderCapabilities capabilities);
-
-    void EnsureSupported(
-        Type readModelType,
-        ProjectionStoreRequirements requirements,
-        ProjectionProviderCapabilities capabilities);
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionDocumentStoreSelector.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionDocumentStoreSelector.cs
deleted file mode 100644
index fe5316146..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionDocumentStoreSelector.cs
+++ /dev/null
@@ -1,23 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public static class ProjectionDocumentStoreSelector
-{
-    public static IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> Select<TReadModel, TKey>(
-        IEnumerable<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements,
-        IProjectionProviderCapabilityValidator? capabilityValidator = null)
-        where TReadModel : class
-    {
-        return ProjectionStoreSelector.Select<
-            IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
-            registrations,
-            selectionOptions,
-            requirements,
-            typeof(TReadModel),
-            noRegistrationsReason: "No provider registrations were found.",
-            multipleRegistrationsReason: "Multiple providers are registered but no explicit provider was requested.",
-            providerNotRegisteredReason: "Requested provider is not registered.",
-            capabilityValidator);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionIndexKind.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionIndexKind.cs
deleted file mode 100644
index edc2ef556..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionIndexKind.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public enum ProjectionIndexKind
-{
-    None = 0,
-    Document = 1,
-    Graph = 2,
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilities.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilities.cs
deleted file mode 100644
index b4daaf039..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilities.cs
+++ /dev/null
@@ -1,54 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public sealed class ProjectionProviderCapabilities
-{
-    private static readonly IReadOnlySet<ProjectionIndexKind> EmptyIndexKinds =
-        new HashSet<ProjectionIndexKind>();
-
-    public ProjectionProviderCapabilities(
-        string providerName,
-        bool supportsIndexing,
-        IEnumerable<ProjectionIndexKind>? indexKinds = null,
-        bool supportsAliases = false,
-        bool supportsSchemaValidation = false,
-        bool supportsGraph = false,
-        bool supportsGraphTraversal = false)
-    {
-        if (string.IsNullOrWhiteSpace(providerName))
-            throw new ArgumentException("Provider name must not be empty.", nameof(providerName));
-
-        ProviderName = providerName.Trim();
-        SupportsIndexing = supportsIndexing;
-        SupportsAliases = supportsAliases;
-        SupportsSchemaValidation = supportsSchemaValidation;
-        SupportsGraph = supportsGraph;
-        SupportsGraphTraversal = supportsGraphTraversal;
-
-        var normalizedIndexKinds = (indexKinds ?? [])
-            .Where(x => x != ProjectionIndexKind.None)
-            .ToHashSet();
-
-        if (!supportsIndexing && normalizedIndexKinds.Count > 0)
-            throw new ArgumentException(
-                "Index kinds cannot be declared when supportsIndexing is false.",
-                nameof(indexKinds));
-
-        IndexKinds = normalizedIndexKinds.Count == 0
-            ? EmptyIndexKinds
-            : normalizedIndexKinds;
-    }
-
-    public string ProviderName { get; }
-
-    public bool SupportsIndexing { get; }
-
-    public IReadOnlySet<ProjectionIndexKind> IndexKinds { get; }
-
-    public bool SupportsAliases { get; }
-
-    public bool SupportsSchemaValidation { get; }
-
-    public bool SupportsGraph { get; }
-
-    public bool SupportsGraphTraversal { get; }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidationException.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidationException.cs
deleted file mode 100644
index e26a827e2..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidationException.cs
+++ /dev/null
@@ -1,32 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public sealed class ProjectionProviderCapabilityValidationException : InvalidOperationException
-{
-    public ProjectionProviderCapabilityValidationException(
-        Type readModelType,
-        ProjectionStoreRequirements requirements,
-        ProjectionProviderCapabilities capabilities,
-        IReadOnlyList<string> violations)
-        : base(BuildMessage(readModelType, capabilities.ProviderName, violations))
-    {
-        ReadModelType = readModelType;
-        Requirements = requirements;
-        Capabilities = capabilities;
-        Violations = violations;
-    }
-
-    public Type ReadModelType { get; }
-
-    public ProjectionStoreRequirements Requirements { get; }
-
-    public ProjectionProviderCapabilities Capabilities { get; }
-
-    public IReadOnlyList<string> Violations { get; }
-
-    private static string BuildMessage(
-        Type readModelType,
-        string providerName,
-        IReadOnlyList<string> violations) =>
-        $"ReadModel '{readModelType.FullName}' is not supported by provider '{providerName}'. " +
-        $"Violations: {string.Join("; ", violations)}";
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidator.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidator.cs
deleted file mode 100644
index f8242c8a9..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidator.cs
+++ /dev/null
@@ -1,68 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public static class ProjectionProviderCapabilityValidator
-{
-    public static IReadOnlyList<string> Validate(
-        ProjectionStoreRequirements requirements,
-        ProjectionProviderCapabilities capabilities)
-    {
-        ArgumentNullException.ThrowIfNull(requirements);
-        ArgumentNullException.ThrowIfNull(capabilities);
-
-        var violations = new List<string>();
-
-        if (requirements.RequiresIndexing && !capabilities.SupportsIndexing)
-            violations.Add("requires indexing, but provider does not support indexing");
-
-        if (requirements.RequiredIndexKinds.Count > 0)
-        {
-            if (!capabilities.SupportsIndexing)
-            {
-                violations.Add(
-                    $"requires index kinds [{string.Join(", ", requirements.RequiredIndexKinds)}], but provider indexing is disabled");
-            }
-            else
-            {
-                var missingKinds = requirements.RequiredIndexKinds
-                    .Where(kind => !capabilities.IndexKinds.Contains(kind))
-                    .ToList();
-                if (missingKinds.Count > 0)
-                {
-                    violations.Add(
-                        $"required index kinds [{string.Join(", ", requirements.RequiredIndexKinds)}] are not fully supported by provider kinds [{string.Join(", ", capabilities.IndexKinds)}]; missing kinds [{string.Join(", ", missingKinds)}]");
-                }
-            }
-        }
-
-        if (requirements.RequiresAliases && !capabilities.SupportsAliases)
-            violations.Add("requires alias support, but provider does not support aliases");
-
-        if (requirements.RequiresSchemaValidation && !capabilities.SupportsSchemaValidation)
-            violations.Add("requires schema validation, but provider does not support schema validation");
-
-        if (requirements.RequiresGraph && !capabilities.SupportsGraph)
-            violations.Add("requires graph storage, but provider does not support graph storage");
-
-        if (requirements.RequiresGraphTraversal && !capabilities.SupportsGraphTraversal)
-            violations.Add("requires graph traversal, but provider does not support graph traversal");
-
-        return violations;
-    }
-
-    public static void EnsureSupported(
-        Type readModelType,
-        ProjectionStoreRequirements requirements,
-        ProjectionProviderCapabilities capabilities)
-    {
-        ArgumentNullException.ThrowIfNull(readModelType);
-        var violations = Validate(requirements, capabilities);
-        if (violations.Count == 0)
-            return;
-
-        throw new ProjectionProviderCapabilityValidationException(
-            readModelType,
-            requirements,
-            capabilities,
-            violations);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreMode.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreMode.cs
deleted file mode 100644
index 6dfacb872..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreMode.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public enum ProjectionStoreMode
-{
-    Custom = 0,
-    Default = 1,
-    StateOnly = 2,
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRequirements.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRequirements.cs
deleted file mode 100644
index 57922a2b9..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRequirements.cs
+++ /dev/null
@@ -1,42 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public sealed class ProjectionStoreRequirements
-{
-    private static readonly IReadOnlySet<ProjectionIndexKind> EmptyIndexKinds =
-        new HashSet<ProjectionIndexKind>();
-
-    public ProjectionStoreRequirements(
-        bool requiresIndexing = false,
-        IEnumerable<ProjectionIndexKind>? requiredIndexKinds = null,
-        bool requiresAliases = false,
-        bool requiresSchemaValidation = false,
-        bool requiresGraph = false,
-        bool requiresGraphTraversal = false)
-    {
-        RequiresIndexing = requiresIndexing;
-        RequiresAliases = requiresAliases;
-        RequiresSchemaValidation = requiresSchemaValidation;
-        RequiresGraph = requiresGraph;
-        RequiresGraphTraversal = requiresGraphTraversal;
-
-        var normalizedIndexKinds = (requiredIndexKinds ?? [])
-            .Where(x => x != ProjectionIndexKind.None)
-            .ToHashSet();
-
-        RequiredIndexKinds = normalizedIndexKinds.Count == 0
-            ? EmptyIndexKinds
-            : normalizedIndexKinds;
-    }
-
-    public bool RequiresIndexing { get; }
-
-    public IReadOnlySet<ProjectionIndexKind> RequiredIndexKinds { get; }
-
-    public bool RequiresAliases { get; }
-
-    public bool RequiresSchemaValidation { get; }
-
-    public bool RequiresGraph { get; }
-
-    public bool RequiresGraphTraversal { get; }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRuntimeOptions.cs
deleted file mode 100644
index f31f06075..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRuntimeOptions.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public sealed class ProjectionStoreRuntimeOptions : IProjectionStoreSelectionRuntimeOptions
-{
-    public ProjectionStoreMode Mode { get; set; } = ProjectionStoreMode.Custom;
-
-    public string DocumentProvider { get; set; } = ProjectionProviderNames.InMemory;
-
-    public string GraphProvider { get; set; } = ProjectionProviderNames.InMemory;
-
-    public bool FailOnUnsupportedCapabilities { get; set; } = true;
-
-    string IProjectionStoreSelectionRuntimeOptions.DocumentProvider => DocumentProvider;
-
-    string IProjectionStoreSelectionRuntimeOptions.GraphProvider => GraphProvider;
-
-    bool IProjectionStoreSelectionRuntimeOptions.FailOnUnsupportedCapabilities => FailOnUnsupportedCapabilities;
-
-    ProjectionStoreMode IProjectionStoreSelectionRuntimeOptions.StoreMode => Mode;
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
deleted file mode 100644
index 11f5a16b8..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionStoreSelectionPlanner
-{
-    ProjectionStoreSelectionPlan Build(
-        IProjectionStoreSelectionRuntimeOptions options,
-        Type readModelType,
-        ProjectionStoreRequirements graphRequirements);
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
deleted file mode 100644
index 7edfb023b..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionStoreSelectionRuntimeOptions
-{
-    string DocumentProvider { get; }
-
-    string GraphProvider { get; }
-
-    bool FailOnUnsupportedCapabilities { get; }
-
-    ProjectionStoreMode StoreMode { get; }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
deleted file mode 100644
index 0f49b9178..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionStoreStartupValidator
-{
-    IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> ValidateDocumentProvider<TReadModel, TKey>(
-        IServiceProvider serviceProvider,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements)
-        where TReadModel : class;
-
-    IProjectionStoreRegistration<IProjectionGraphStore> ValidateGraphProvider(
-        IServiceProvider serviceProvider,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements);
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
deleted file mode 100644
index 5fd89fe9b..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public readonly record struct ProjectionStoreSelectionPlan(
-    ProjectionStoreRequirements DocumentRequirements,
-    ProjectionStoreSelectionOptions DocumentSelectionOptions,
-    ProjectionStoreRequirements GraphRequirements,
-    ProjectionStoreSelectionOptions GraphSelectionOptions);
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
deleted file mode 100644
index 5647efbb9..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs
+++ /dev/null
@@ -1,87 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public static class ProjectionStoreSelector
-{
-    public static TRegistration Select<TRegistration>(
-        IEnumerable<TRegistration> registrations,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements,
-        Type logicalModelType,
-        string noRegistrationsReason,
-        string multipleRegistrationsReason,
-        string providerNotRegisteredReason,
-        IProjectionProviderCapabilityValidator? capabilityValidator = null)
-        where TRegistration : IProjectionStoreRegistration
-    {
-        ArgumentNullException.ThrowIfNull(registrations);
-        ArgumentNullException.ThrowIfNull(selectionOptions);
-        ArgumentNullException.ThrowIfNull(requirements);
-        ArgumentNullException.ThrowIfNull(logicalModelType);
-
-        var candidates = registrations.ToList();
-        var requestedProviderName = selectionOptions.RequestedProviderName?.Trim() ?? "";
-        if (candidates.Count == 0)
-        {
-            throw new ProjectionProviderSelectionException(
-                logicalModelType,
-                requestedProviderName,
-                [],
-                noRegistrationsReason);
-        }
-
-        var selected = ResolveRegistration<TRegistration>(
-            candidates,
-            requestedProviderName,
-            logicalModelType,
-            multipleRegistrationsReason,
-            providerNotRegisteredReason);
-        var violations = capabilityValidator == null
-            ? ProjectionProviderCapabilityValidator.Validate(requirements, selected.Capabilities)
-            : capabilityValidator.Validate(requirements, selected.Capabilities);
-        if (violations.Count > 0 && selectionOptions.FailOnUnsupportedCapabilities)
-        {
-            throw new ProjectionProviderCapabilityValidationException(
-                logicalModelType,
-                requirements,
-                selected.Capabilities,
-                violations);
-        }
-
-        return selected;
-    }
-
-    private static TRegistration ResolveRegistration<TRegistration>(
-        IReadOnlyList<TRegistration> registrations,
-        string requestedProviderName,
-        Type logicalModelType,
-        string multipleRegistrationsReason,
-        string providerNotRegisteredReason)
-        where TRegistration : IProjectionStoreRegistration
-    {
-        if (requestedProviderName.Length == 0)
-        {
-            if (registrations.Count == 1)
-                return registrations[0];
-
-            throw new ProjectionProviderSelectionException(
-                logicalModelType,
-                requestedProviderName,
-                registrations.Select(x => x.ProviderName).ToList(),
-                multipleRegistrationsReason);
-        }
-
-        var matched = registrations
-            .FirstOrDefault(x => string.Equals(
-                x.ProviderName,
-                requestedProviderName,
-                StringComparison.OrdinalIgnoreCase));
-        if (matched != null)
-            return matched;
-
-        throw new ProjectionProviderSelectionException(
-            logicalModelType,
-            requestedProviderName,
-            registrations.Select(x => x.ProviderName).ToList(),
-            providerNotRegisteredReason);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
index 99fc3fd56..7310ffd1e 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
@@ -1,23 +1,26 @@
 # Aevatar.CQRS.Projection.Runtime.Abstractions
 
-`Aevatar.CQRS.Projection.Runtime.Abstractions` 承载 Projection Runtime 的策略与编排契约，不承载具体实现。
+`Aevatar.CQRS.Projection.Runtime.Abstractions` 承载 Projection Runtime 的编排契约，不承载任何具体 Provider 实现。
 
 ## 目录结构
 
 - `Abstractions/Core`：Provider 注册契约（`IProjectionStoreRegistration<TStore>`）
-- `Abstractions/ReadModels`：Document provider 选择、能力模型、runtime options、metadata resolver 契约
-- `Abstractions/Graphs`：Graph provider 选择与 factory 契约
-- `Abstractions/Selection`：统一选择计划、启动校验与 materialization 路由契约
+- `Abstractions/Documents`：Document runtime options、selection options、startup validator 契约
+- `Abstractions/ReadModels`：Document store registry/factory/selector、metadata resolver 契约
+- `Abstractions/Graphs`：Graph runtime options、selection options、startup validator、store registry/factory/selector 契约
+- `Abstractions/Selection`：Materialization 路由与 graph materializer 契约
 
 ## 关键契约
 
-- Provider 注册与能力：`IProjectionStoreRegistration<TStore>`、`ProjectionProviderCapabilities`
-- 选择规划：`IProjectionStoreSelectionPlanner`、`ProjectionStoreSelectionPlan`
-- 运行时选择参数：`ProjectionStoreSelectionOptions`、`ProjectionStoreRequirements`、`IProjectionStoreSelectionRuntimeOptions`
+- Provider 注册：`IProjectionStoreRegistration<TStore>`
+- Document 运行时：`IProjectionDocumentRuntimeOptions`、`ProjectionDocumentSelectionOptions`
+- Graph 运行时：`IProjectionGraphRuntimeOptions`、`ProjectionGraphSelectionOptions`
 - Store factory：`IProjectionDocumentStoreFactory`、`IProjectionGraphStoreFactory`
+- Startup validation：`IProjectionDocumentStartupValidator`、`IProjectionGraphStartupValidator`
 - Materialization：`IProjectionMaterializationRouter<TReadModel, TKey>`、`IProjectionGraphMaterializer<TReadModel>`
 
 ## 约束
 
-1. 仅定义运行时编排协议，不包含具体 provider/store 实现。
-2. 仅依赖抽象层（`Stores.Abstractions`），不依赖业务模块。
+1. 不包含能力协商模型（Capabilities/Requirements/CapabilityValidator）。
+2. Provider 选择语义为显式 providerName + fail-fast，不做自动降级。
+3. 仅依赖 `Aevatar.CQRS.Projection.Stores.Abstractions`。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index 36f233c92..49b135e55 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -8,10 +8,8 @@ public static class ServiceCollectionExtensions
 {
     public static IServiceCollection AddProjectionReadModelRuntime(this IServiceCollection services)
     {
-        services.TryAddSingleton<IProjectionProviderCapabilityValidator, ProjectionProviderCapabilityValidatorService>();
         services.TryAddSingleton<IProjectionDocumentStoreProviderRegistry, ProjectionDocumentStoreProviderRegistry>();
         services.TryAddSingleton<IProjectionDocumentStoreProviderSelector, ProjectionDocumentStoreProviderSelector>();
-        services.TryAddSingleton<IProjectionStoreSelectionPlanner, ProjectionStoreSelectionPlanner>();
         services.TryAddSingleton<IProjectionDocumentStoreFactory, ProjectionDocumentStoreFactory>();
         services.TryAddSingleton<IProjectionGraphStoreProviderRegistry, ProjectionGraphStoreProviderRegistry>();
         services.TryAddSingleton<IProjectionGraphStoreProviderSelector, ProjectionGraphStoreProviderSelector>();
@@ -19,7 +17,8 @@ public static IServiceCollection AddProjectionReadModelRuntime(this IServiceColl
         services.TryAddSingleton(typeof(IProjectionGraphMaterializer<>), typeof(ProjectionGraphMaterializer<>));
         services.TryAddSingleton(typeof(IProjectionMaterializationRouter<,>), typeof(ProjectionMaterializationRouter<,>));
         services.TryAddSingleton<IProjectionDocumentMetadataResolver, ProjectionDocumentMetadataResolver>();
-        services.TryAddSingleton<IProjectionStoreStartupValidator, ProjectionStoreStartupValidator>();
+        services.TryAddSingleton<IProjectionDocumentStartupValidator, ProjectionDocumentStartupValidator>();
+        services.TryAddSingleton<IProjectionGraphStartupValidator, ProjectionGraphStartupValidator>();
         return services;
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/README.md b/src/Aevatar.CQRS.Projection.Runtime/README.md
index d282ace16..9a388df3b 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime/README.md
@@ -1,15 +1,14 @@
 # Aevatar.CQRS.Projection.Runtime
 
-通用 ReadModel Provider Runtime 组装层。
+通用 ReadModel Runtime 组装层。
 
 ## 职责
 
-- 收敛 Provider 注册查询（`IProjectionDocumentStoreProviderRegistry`）。
-- 执行 Provider 选择策略（`IProjectionDocumentStoreProviderSelector`）。
-- 按 `IDocumentReadModel/IGraphReadModel` 能力推导选择需求（`IProjectionStoreSelectionPlanner`）。
-- 统一创建 Store 并输出结构化创建日志（`IProjectionDocumentStoreFactory`）。
-- 提供 `IProjectionMaterializationRouter<TReadModel, TKey>` 与 `ProjectionGraphMaterializer<TReadModel>` 双写路由能力。
-- 所有上述契约统一来自 `Aevatar.CQRS.Projection.Runtime.Abstractions`。
+- Document/Graph Provider 注册查询：`IProjectionDocumentStoreProviderRegistry`、`IProjectionGraphStoreProviderRegistry`
+- Document/Graph Provider 显式选择：`IProjectionDocumentStoreProviderSelector`、`IProjectionGraphStoreProviderSelector`
+- Store 创建与创建日志：`IProjectionDocumentStoreFactory`、`IProjectionGraphStoreFactory`
+- 启动期 fail-fast 校验：`IProjectionDocumentStartupValidator`、`IProjectionGraphStartupValidator`
+- Materialization 路由：`IProjectionMaterializationRouter<TReadModel, TKey>`、`ProjectionGraphMaterializer<TReadModel>`
 
 ## DI 入口
 
@@ -17,5 +16,6 @@
 
 ## 设计约束
 
-- 不承载业务 ReadModel 类型，不引用 Workflow/AI 等业务模块。
-- 仅依赖抽象与 DI，具体 Provider 由上层模块按需注册。
+1. 不承载业务 ReadModel 类型。
+2. 不实现能力协商，不依赖 Capabilities/Requirements 模型。
+3. 仅依赖抽象契约与 DI；具体 Provider 由上层注册。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStartupValidator.cs
new file mode 100644
index 000000000..d7e4998c4
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStartupValidator.cs
@@ -0,0 +1,27 @@
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionDocumentStartupValidator : IProjectionDocumentStartupValidator
+{
+    private readonly IProjectionDocumentStoreProviderRegistry _providerRegistry;
+    private readonly IProjectionDocumentStoreProviderSelector _providerSelector;
+
+    public ProjectionDocumentStartupValidator(
+        IProjectionDocumentStoreProviderRegistry providerRegistry,
+        IProjectionDocumentStoreProviderSelector providerSelector)
+    {
+        _providerRegistry = providerRegistry;
+        _providerSelector = providerSelector;
+    }
+
+    public IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> ValidateProvider<TReadModel, TKey>(
+        IServiceProvider serviceProvider,
+        ProjectionDocumentSelectionOptions selectionOptions)
+        where TReadModel : class
+    {
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+        ArgumentNullException.ThrowIfNull(selectionOptions);
+
+        var registrations = _providerRegistry.GetRegistrations<TReadModel, TKey>(serviceProvider);
+        return _providerSelector.Select(registrations, selectionOptions);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
index dc3908c08..e4e915876 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
@@ -22,16 +22,14 @@ public ProjectionDocumentStoreFactory(
 
     public IDocumentProjectionStore<TReadModel, TKey> Create<TReadModel, TKey>(
         IServiceProvider serviceProvider,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements)
+        ProjectionDocumentSelectionOptions selectionOptions)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
         ArgumentNullException.ThrowIfNull(selectionOptions);
-        ArgumentNullException.ThrowIfNull(requirements);
 
         var registrations = _providerRegistry.GetRegistrations<TReadModel, TKey>(serviceProvider);
-        var selected = _providerSelector.Select(registrations, selectionOptions, requirements);
+        var selected = _providerSelector.Select(registrations, selectionOptions);
 
         var startedAt = DateTimeOffset.UtcNow;
         try
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderSelector.cs
index d92733a1a..67c9bf816 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderSelector.cs
@@ -6,83 +6,78 @@ namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 public sealed class ProjectionDocumentStoreProviderSelector
     : IProjectionDocumentStoreProviderSelector
 {
-    private readonly IProjectionProviderCapabilityValidator _capabilityValidator;
     private readonly ILogger<ProjectionDocumentStoreProviderSelector> _logger;
 
     public ProjectionDocumentStoreProviderSelector(
-        IProjectionProviderCapabilityValidator capabilityValidator,
         ILogger<ProjectionDocumentStoreProviderSelector>? logger = null)
     {
-        _capabilityValidator = capabilityValidator;
         _logger = logger ?? NullLogger<ProjectionDocumentStoreProviderSelector>.Instance;
     }
 
     public IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> Select<TReadModel, TKey>(
         IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements)
+        ProjectionDocumentSelectionOptions selectionOptions)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(registrations);
         ArgumentNullException.ThrowIfNull(selectionOptions);
-        ArgumentNullException.ThrowIfNull(requirements);
+        var selected = SelectRegistration(
+            registrations,
+            selectionOptions,
+            typeof(TReadModel),
+            "No document store provider registrations were found.",
+            "Multiple document store providers are registered but no explicit provider was requested.",
+            "Requested document store provider is not registered.");
+        _logger.LogInformation(
+            "Projection document provider selected. readModel={ReadModel} provider={Provider}",
+            typeof(TReadModel).FullName,
+            selected.ProviderName);
+        return selected;
+    }
 
-        try
-        {
-            var selected = ProjectionDocumentStoreSelector.Select(
-                registrations,
-                selectionOptions,
-                requirements,
-                _capabilityValidator);
-            _logger.LogInformation(
-                "Projection provider selected. readModel={ReadModel} provider={Provider} failOnUnsupportedCapabilities={FailOnUnsupportedCapabilities}",
-                typeof(TReadModel).FullName,
-                selected.ProviderName,
-                selectionOptions.FailOnUnsupportedCapabilities);
-            return selected;
-        }
-        catch (ProjectionProviderCapabilityValidationException ex)
+    private static IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> SelectRegistration<TReadModel, TKey>(
+        IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
+        ProjectionDocumentSelectionOptions selectionOptions,
+        Type logicalModelType,
+        string noRegistrationsReason,
+        string multipleRegistrationsReason,
+        string providerNotRegisteredReason)
+        where TReadModel : class
+    {
+        var requestedProviderName = selectionOptions.RequestedProviderName?.Trim() ?? "";
+        if (registrations.Count == 0)
         {
-            _logger.LogError(
-                "Projection provider capability validation failed. readModel={ReadModel} provider={Provider} requiredCapabilities={RequiredCapabilities} actualCapabilities={ActualCapabilities} violations={Violations}",
-                typeof(TReadModel).FullName,
-                ex.Capabilities.ProviderName,
-                FormatRequirements(ex.Requirements),
-                FormatCapabilities(ex.Capabilities),
-                string.Join("; ", ex.Violations));
-            throw;
+            throw new ProjectionProviderSelectionException(
+                logicalModelType,
+                requestedProviderName,
+                [],
+                noRegistrationsReason);
         }
-        catch (ProjectionProviderSelectionException ex)
+
+        if (requestedProviderName.Length == 0)
         {
-            var requestedProvider = ex.RequestedProviderName.Length == 0 ? "<unspecified>" : ex.RequestedProviderName;
-            var availableProviders = ex.AvailableProviders.Count == 0 ? "<none>" : string.Join(", ", ex.AvailableProviders);
-            _logger.LogError(
-                "Projection provider selection failed. readModel={ReadModel} requestedProvider={RequestedProvider} availableProviders={AvailableProviders} reason={Reason}",
-                typeof(TReadModel).FullName,
-                requestedProvider,
-                availableProviders,
-                ex.Reason);
-            throw;
+            if (registrations.Count == 1)
+                return registrations[0];
+
+            throw new ProjectionProviderSelectionException(
+                logicalModelType,
+                requestedProviderName,
+                registrations.Select(x => x.ProviderName).ToList(),
+                multipleRegistrationsReason);
         }
-    }
 
-    private static string FormatRequirements(ProjectionStoreRequirements requirements)
-    {
-        return $"requiresIndexing={requirements.RequiresIndexing};" +
-               $"requiredIndexKinds=[{string.Join(",", requirements.RequiredIndexKinds)}];" +
-               $"requiresAliases={requirements.RequiresAliases};" +
-               $"requiresSchemaValidation={requirements.RequiresSchemaValidation};" +
-               $"requiresGraph={requirements.RequiresGraph};" +
-               $"requiresGraphTraversal={requirements.RequiresGraphTraversal}";
-    }
+        var matched = registrations
+            .FirstOrDefault(x => string.Equals(
+                x.ProviderName,
+                requestedProviderName,
+                StringComparison.OrdinalIgnoreCase));
+        if (matched != null)
+            return matched;
 
-    private static string FormatCapabilities(ProjectionProviderCapabilities capabilities)
-    {
-        return $"supportsIndexing={capabilities.SupportsIndexing};" +
-               $"indexKinds=[{string.Join(",", capabilities.IndexKinds)}];" +
-               $"supportsAliases={capabilities.SupportsAliases};" +
-               $"supportsSchemaValidation={capabilities.SupportsSchemaValidation};" +
-               $"supportsGraph={capabilities.SupportsGraph};" +
-               $"supportsGraphTraversal={capabilities.SupportsGraphTraversal}";
+        throw new ProjectionProviderSelectionException(
+            logicalModelType,
+            requestedProviderName,
+            registrations.Select(x => x.ProviderName).ToList(),
+            providerNotRegisteredReason);
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStartupValidator.cs
new file mode 100644
index 000000000..81f525ffa
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStartupValidator.cs
@@ -0,0 +1,26 @@
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionGraphStartupValidator : IProjectionGraphStartupValidator
+{
+    private readonly IProjectionGraphStoreProviderRegistry _providerRegistry;
+    private readonly IProjectionGraphStoreProviderSelector _providerSelector;
+
+    public ProjectionGraphStartupValidator(
+        IProjectionGraphStoreProviderRegistry providerRegistry,
+        IProjectionGraphStoreProviderSelector providerSelector)
+    {
+        _providerRegistry = providerRegistry;
+        _providerSelector = providerSelector;
+    }
+
+    public IProjectionStoreRegistration<IProjectionGraphStore> ValidateProvider(
+        IServiceProvider serviceProvider,
+        ProjectionGraphSelectionOptions selectionOptions)
+    {
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+        ArgumentNullException.ThrowIfNull(selectionOptions);
+
+        var registrations = _providerRegistry.GetRegistrations(serviceProvider);
+        return _providerSelector.Select(registrations, selectionOptions);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
index c5eba2fbc..a0ab8d2c5 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
@@ -21,15 +21,13 @@ public ProjectionGraphStoreFactory(
 
     public IProjectionGraphStore Create(
         IServiceProvider serviceProvider,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements)
+        ProjectionGraphSelectionOptions selectionOptions)
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
         ArgumentNullException.ThrowIfNull(selectionOptions);
-        ArgumentNullException.ThrowIfNull(requirements);
 
         var registrations = _providerRegistry.GetRegistrations(serviceProvider);
-        var selected = _providerSelector.Select(registrations, selectionOptions, requirements);
+        var selected = _providerSelector.Select(registrations, selectionOptions);
 
         var startedAt = DateTimeOffset.UtcNow;
         try
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderSelector.cs
index ea72060ca..2e13e697c 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderSelector.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderSelector.cs
@@ -6,41 +6,78 @@ namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 public sealed class ProjectionGraphStoreProviderSelector
     : IProjectionGraphStoreProviderSelector
 {
-    private readonly IProjectionProviderCapabilityValidator _capabilityValidator;
     private readonly ILogger<ProjectionGraphStoreProviderSelector> _logger;
 
     public ProjectionGraphStoreProviderSelector(
-        IProjectionProviderCapabilityValidator capabilityValidator,
         ILogger<ProjectionGraphStoreProviderSelector>? logger = null)
     {
-        _capabilityValidator = capabilityValidator;
         _logger = logger ?? NullLogger<ProjectionGraphStoreProviderSelector>.Instance;
     }
 
     public IProjectionStoreRegistration<IProjectionGraphStore> Select(
         IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> registrations,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements)
+        ProjectionGraphSelectionOptions selectionOptions)
     {
         ArgumentNullException.ThrowIfNull(registrations);
         ArgumentNullException.ThrowIfNull(selectionOptions);
-        ArgumentNullException.ThrowIfNull(requirements);
 
-        var selected = ProjectionStoreSelector.Select<IProjectionStoreRegistration<IProjectionGraphStore>>(
+        var selected = SelectRegistration(
             registrations,
             selectionOptions,
-            requirements,
             typeof(ProjectionGraphNode),
             noRegistrationsReason: "No relation store provider registrations were found.",
             multipleRegistrationsReason: "Multiple relation store providers are registered but no explicit provider was requested.",
-            providerNotRegisteredReason: "Requested relation store provider is not registered.",
-            _capabilityValidator);
+            providerNotRegisteredReason: "Requested relation store provider is not registered.");
 
         _logger.LogInformation(
-            "Projection relation provider selected. provider={Provider} failOnUnsupportedCapabilities={FailOnUnsupportedCapabilities}",
-            selected.ProviderName,
-            selectionOptions.FailOnUnsupportedCapabilities);
+            "Projection relation provider selected. provider={Provider}",
+            selected.ProviderName);
 
         return selected;
     }
+
+    private static IProjectionStoreRegistration<IProjectionGraphStore> SelectRegistration(
+        IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> registrations,
+        ProjectionGraphSelectionOptions selectionOptions,
+        Type logicalModelType,
+        string noRegistrationsReason,
+        string multipleRegistrationsReason,
+        string providerNotRegisteredReason)
+    {
+        var requestedProviderName = selectionOptions.RequestedProviderName?.Trim() ?? "";
+        if (registrations.Count == 0)
+        {
+            throw new ProjectionProviderSelectionException(
+                logicalModelType,
+                requestedProviderName,
+                [],
+                noRegistrationsReason);
+        }
+
+        if (requestedProviderName.Length == 0)
+        {
+            if (registrations.Count == 1)
+                return registrations[0];
+
+            throw new ProjectionProviderSelectionException(
+                logicalModelType,
+                requestedProviderName,
+                registrations.Select(x => x.ProviderName).ToList(),
+                multipleRegistrationsReason);
+        }
+
+        var matched = registrations
+            .FirstOrDefault(x => string.Equals(
+                x.ProviderName,
+                requestedProviderName,
+                StringComparison.OrdinalIgnoreCase));
+        if (matched != null)
+            return matched;
+
+        throw new ProjectionProviderSelectionException(
+            logicalModelType,
+            requestedProviderName,
+            registrations.Select(x => x.ProviderName).ToList(),
+            providerNotRegisteredReason);
+    }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionProviderCapabilityValidatorService.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionProviderCapabilityValidatorService.cs
deleted file mode 100644
index ff6810169..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionProviderCapabilityValidatorService.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionProviderCapabilityValidatorService : IProjectionProviderCapabilityValidator
-{
-    public IReadOnlyList<string> Validate(
-        ProjectionStoreRequirements requirements,
-        ProjectionProviderCapabilities capabilities) =>
-        ProjectionProviderCapabilityValidator.Validate(requirements, capabilities);
-
-    public void EnsureSupported(
-        Type readModelType,
-        ProjectionStoreRequirements requirements,
-        ProjectionProviderCapabilities capabilities) =>
-        ProjectionProviderCapabilityValidator.EnsureSupported(readModelType, requirements, capabilities);
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
deleted file mode 100644
index 8e79e95fc..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs
+++ /dev/null
@@ -1,95 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionStoreSelectionPlanner : IProjectionStoreSelectionPlanner
-{
-    public ProjectionStoreSelectionPlan Build(
-        IProjectionStoreSelectionRuntimeOptions options,
-        Type readModelType,
-        ProjectionStoreRequirements graphRequirements)
-    {
-        ArgumentNullException.ThrowIfNull(options);
-        ArgumentNullException.ThrowIfNull(readModelType);
-        ArgumentNullException.ThrowIfNull(graphRequirements);
-        EnsureStoreModeSupported(options.StoreMode);
-
-        var readModelRequirements = BuildDocumentRequirements(readModelType);
-        var readModelRequiresGraph = typeof(IGraphReadModel).IsAssignableFrom(readModelType);
-        var readModelProvider = NormalizeRequiredProviderName(options.DocumentProvider);
-        var readModelSelectionOptions = new ProjectionStoreSelectionOptions
-        {
-            RequestedProviderName = readModelProvider,
-            FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
-        };
-
-        var mergedGraphRequirements = MergeGraphRequirements(graphRequirements, readModelRequiresGraph);
-        var graphSelectionOptions = new ProjectionStoreSelectionOptions
-        {
-            RequestedProviderName = NormalizeGraphProviderName(
-                options.GraphProvider,
-                readModelProvider),
-            FailOnUnsupportedCapabilities = options.FailOnUnsupportedCapabilities,
-        };
-
-        return new ProjectionStoreSelectionPlan(
-            readModelRequirements,
-            readModelSelectionOptions,
-            mergedGraphRequirements,
-            graphSelectionOptions);
-    }
-
-    private static ProjectionStoreRequirements MergeGraphRequirements(
-        ProjectionStoreRequirements graphRequirements,
-        bool readModelRequiresGraph)
-    {
-        return new ProjectionStoreRequirements(
-            requiresIndexing: graphRequirements.RequiresIndexing,
-            requiredIndexKinds: graphRequirements.RequiredIndexKinds,
-            requiresAliases: graphRequirements.RequiresAliases,
-            requiresSchemaValidation: graphRequirements.RequiresSchemaValidation,
-            requiresGraph: graphRequirements.RequiresGraph || readModelRequiresGraph,
-            requiresGraphTraversal: graphRequirements.RequiresGraphTraversal || readModelRequiresGraph);
-    }
-
-    private static ProjectionStoreRequirements BuildDocumentRequirements(Type readModelType)
-    {
-        var requiredIndexKinds = new List<ProjectionIndexKind>();
-
-        if (typeof(IDocumentReadModel).IsAssignableFrom(readModelType))
-            requiredIndexKinds.Add(ProjectionIndexKind.Document);
-
-        return new ProjectionStoreRequirements(
-            requiresIndexing: requiredIndexKinds.Count > 0,
-            requiredIndexKinds: requiredIndexKinds);
-    }
-
-    private static string NormalizeRequiredProviderName(string providerName)
-    {
-        if (string.IsNullOrWhiteSpace(providerName))
-        {
-            throw new InvalidOperationException(
-                "Projection read-model provider is required and cannot be empty.");
-        }
-
-        return providerName.Trim();
-    }
-
-    private static string NormalizeGraphProviderName(
-        string graphProviderName,
-        string fallbackProviderName)
-    {
-        if (string.IsNullOrWhiteSpace(graphProviderName))
-            return fallbackProviderName;
-
-        return graphProviderName.Trim();
-    }
-
-    private static void EnsureStoreModeSupported(ProjectionStoreMode readModelMode)
-    {
-        if (readModelMode != ProjectionStoreMode.StateOnly)
-            return;
-
-        throw new InvalidOperationException(
-            "Projection store selection does not support Projection:Document:Mode=StateOnly. " +
-            "Use Custom or Default.");
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
deleted file mode 100644
index ec2c4bda7..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreStartupValidator.cs
+++ /dev/null
@@ -1,48 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionStoreStartupValidator : IProjectionStoreStartupValidator
-{
-    private readonly IProjectionDocumentStoreProviderRegistry _readModelProviderRegistry;
-    private readonly IProjectionDocumentStoreProviderSelector _readModelProviderSelector;
-    private readonly IProjectionGraphStoreProviderRegistry _graphProviderRegistry;
-    private readonly IProjectionGraphStoreProviderSelector _graphProviderSelector;
-
-    public ProjectionStoreStartupValidator(
-        IProjectionDocumentStoreProviderRegistry readModelProviderRegistry,
-        IProjectionDocumentStoreProviderSelector readModelProviderSelector,
-        IProjectionGraphStoreProviderRegistry graphProviderRegistry,
-        IProjectionGraphStoreProviderSelector graphProviderSelector)
-    {
-        _readModelProviderRegistry = readModelProviderRegistry;
-        _readModelProviderSelector = readModelProviderSelector;
-        _graphProviderRegistry = graphProviderRegistry;
-        _graphProviderSelector = graphProviderSelector;
-    }
-
-    public IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> ValidateDocumentProvider<TReadModel, TKey>(
-        IServiceProvider serviceProvider,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements)
-        where TReadModel : class
-    {
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-        ArgumentNullException.ThrowIfNull(selectionOptions);
-        ArgumentNullException.ThrowIfNull(requirements);
-
-        var registrations = _readModelProviderRegistry.GetRegistrations<TReadModel, TKey>(serviceProvider);
-        return _readModelProviderSelector.Select(registrations, selectionOptions, requirements);
-    }
-
-    public IProjectionStoreRegistration<IProjectionGraphStore> ValidateGraphProvider(
-        IServiceProvider serviceProvider,
-        ProjectionStoreSelectionOptions selectionOptions,
-        ProjectionStoreRequirements requirements)
-    {
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-        ArgumentNullException.ThrowIfNull(selectionOptions);
-        ArgumentNullException.ThrowIfNull(requirements);
-
-        var registrations = _graphProviderRegistry.GetRegistrations(serviceProvider);
-        return _graphProviderSelector.Select(registrations, selectionOptions, requirements);
-    }
-}
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index a8137bac1..df20672fc 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -37,9 +37,12 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.Replace(ServiceDescriptor.Singleton(options));
         services.TryAddSingleton<IProjectionRuntimeOptions>(sp =>
             sp.GetRequiredService<WorkflowExecutionProjectionOptions>());
-        services.TryAddSingleton<ProjectionStoreRuntimeOptions>();
-        services.TryAddSingleton<IProjectionStoreSelectionRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionStoreRuntimeOptions>());
+        services.TryAddSingleton<ProjectionDocumentRuntimeOptions>();
+        services.TryAddSingleton<IProjectionDocumentRuntimeOptions>(sp =>
+            sp.GetRequiredService<ProjectionDocumentRuntimeOptions>());
+        services.TryAddSingleton<ProjectionGraphRuntimeOptions>();
+        services.TryAddSingleton<IProjectionGraphRuntimeOptions>(sp =>
+            sp.GetRequiredService<ProjectionGraphRuntimeOptions>());
         services.TryAddSingleton<IEventDeduplicator, PassthroughEventDeduplicator>();
         services.AddProjectionReadModelRuntime();
         services.TryAddSingleton<IProjectionDocumentMetadataProvider<WorkflowExecutionReport>, WorkflowExecutionReportDocumentMetadataProvider>();
@@ -128,12 +131,11 @@ private static void RegisterWorkflowDocumentStoreSelector(IServiceCollection ser
         services.Replace(ServiceDescriptor.Singleton<IDocumentProjectionStore<WorkflowExecutionReport, string>>(sp =>
         {
             var storeFactory = sp.GetRequiredService<IProjectionDocumentStoreFactory>();
-            var selectionPlan = BuildSelectionPlan(sp);
+            var selectionOptions = BuildDocumentSelectionOptions(sp);
 
             return storeFactory.Create<WorkflowExecutionReport, string>(
                 sp,
-                selectionPlan.DocumentSelectionOptions,
-                selectionPlan.DocumentRequirements);
+                selectionOptions);
         }));
     }
 
@@ -142,12 +144,11 @@ private static void RegisterWorkflowGraphStoreSelector(IServiceCollection servic
         services.Replace(ServiceDescriptor.Singleton<IProjectionGraphStore>(sp =>
         {
             var graphStoreFactory = sp.GetRequiredService<IProjectionGraphStoreFactory>();
-            var selectionPlan = BuildSelectionPlan(sp);
+            var selectionOptions = BuildGraphSelectionOptions(sp);
 
             return graphStoreFactory.Create(
                 sp,
-                selectionPlan.GraphSelectionOptions,
-                selectionPlan.GraphRequirements);
+                selectionOptions);
         }));
     }
 
@@ -159,14 +160,22 @@ private static void RegisterWorkflowMaterializationRouter(IServiceCollection ser
                 sp.GetRequiredService<IProjectionGraphMaterializer<WorkflowExecutionReport>>())));
     }
 
-    private static ProjectionStoreSelectionPlan BuildSelectionPlan(IServiceProvider serviceProvider)
+    private static ProjectionDocumentSelectionOptions BuildDocumentSelectionOptions(IServiceProvider serviceProvider)
     {
-        var selectionPlanner = serviceProvider.GetRequiredService<IProjectionStoreSelectionPlanner>();
-        var runtimeOptions = serviceProvider.GetRequiredService<IProjectionStoreSelectionRuntimeOptions>();
-        return selectionPlanner.Build(
-            runtimeOptions,
-            typeof(WorkflowExecutionReport),
-            new ProjectionStoreRequirements());
+        var runtimeOptions = serviceProvider.GetRequiredService<IProjectionDocumentRuntimeOptions>();
+        return new ProjectionDocumentSelectionOptions
+        {
+            RequestedProviderName = runtimeOptions.ProviderName,
+        };
+    }
+
+    private static ProjectionGraphSelectionOptions BuildGraphSelectionOptions(IServiceProvider serviceProvider)
+    {
+        var runtimeOptions = serviceProvider.GetRequiredService<IProjectionGraphRuntimeOptions>();
+        return new ProjectionGraphSelectionOptions
+        {
+            RequestedProviderName = runtimeOptions.ProviderName,
+        };
     }
 
     private sealed class PassthroughEventDeduplicator : IEventDeduplicator
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index 9420fffbe..270a5beef 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -11,24 +11,27 @@ internal sealed class WorkflowReadModelStartupValidationHostedService : IHostedS
 {
     private readonly IServiceProvider _serviceProvider;
     private readonly WorkflowExecutionProjectionOptions _options;
-    private readonly IProjectionStoreSelectionPlanner _selectionPlanner;
-    private readonly IProjectionStoreSelectionRuntimeOptions _selectionRuntimeOptions;
-    private readonly IProjectionStoreStartupValidator _startupValidator;
+    private readonly IProjectionDocumentRuntimeOptions _documentRuntimeOptions;
+    private readonly IProjectionGraphRuntimeOptions _graphRuntimeOptions;
+    private readonly IProjectionDocumentStartupValidator _documentStartupValidator;
+    private readonly IProjectionGraphStartupValidator _graphStartupValidator;
     private readonly ILogger<WorkflowReadModelStartupValidationHostedService> _logger;
 
     public WorkflowReadModelStartupValidationHostedService(
         IServiceProvider serviceProvider,
         WorkflowExecutionProjectionOptions options,
-        IProjectionStoreSelectionPlanner selectionPlanner,
-        IProjectionStoreSelectionRuntimeOptions selectionRuntimeOptions,
-        IProjectionStoreStartupValidator startupValidator,
+        IProjectionDocumentRuntimeOptions documentRuntimeOptions,
+        IProjectionGraphRuntimeOptions graphRuntimeOptions,
+        IProjectionDocumentStartupValidator documentStartupValidator,
+        IProjectionGraphStartupValidator graphStartupValidator,
         ILogger<WorkflowReadModelStartupValidationHostedService>? logger = null)
     {
         _serviceProvider = serviceProvider;
         _options = options;
-        _selectionPlanner = selectionPlanner;
-        _selectionRuntimeOptions = selectionRuntimeOptions;
-        _startupValidator = startupValidator;
+        _documentRuntimeOptions = documentRuntimeOptions;
+        _graphRuntimeOptions = graphRuntimeOptions;
+        _documentStartupValidator = documentStartupValidator;
+        _graphStartupValidator = graphStartupValidator;
         _logger = logger ?? NullLogger<WorkflowReadModelStartupValidationHostedService>.Instance;
     }
 
@@ -38,29 +41,28 @@ public Task StartAsync(CancellationToken cancellationToken)
         if (!_options.Enabled)
             return Task.CompletedTask;
 
-        var selectionPlan = _selectionPlanner.Build(
-            _selectionRuntimeOptions,
-            typeof(WorkflowExecutionReport),
-            new ProjectionStoreRequirements());
-
-        if (_options.ValidateDocumentProviderOnStartup)
+        if (_options.ValidateDocumentProviderOnStartup && _documentRuntimeOptions.FailFastOnStartup)
         {
-            var selectedDocumentProvider = _startupValidator.ValidateDocumentProvider<WorkflowExecutionReport, string>(
+            var selectedDocumentProvider = _documentStartupValidator.ValidateProvider<WorkflowExecutionReport, string>(
                 _serviceProvider,
-                selectionPlan.DocumentSelectionOptions,
-                selectionPlan.DocumentRequirements);
+                new ProjectionDocumentSelectionOptions
+                {
+                    RequestedProviderName = _documentRuntimeOptions.ProviderName,
+                });
             _logger.LogInformation(
                 "Workflow read-model provider startup validation passed. readModelType={ReadModelType} provider={Provider}",
                 typeof(WorkflowExecutionReport).FullName,
                 selectedDocumentProvider.ProviderName);
         }
 
-        if (_options.ValidateGraphProviderOnStartup)
+        if (_options.ValidateGraphProviderOnStartup && _graphRuntimeOptions.FailFastOnStartup)
         {
-            var selectedGraphProvider = _startupValidator.ValidateGraphProvider(
+            var selectedGraphProvider = _graphStartupValidator.ValidateProvider(
                 _serviceProvider,
-                selectionPlan.GraphSelectionOptions,
-                selectionPlan.GraphRequirements);
+                new ProjectionGraphSelectionOptions
+                {
+                    RequestedProviderName = _graphRuntimeOptions.ProviderName,
+                });
             _logger.LogInformation(
                 "Workflow graph provider startup validation passed. graphType={GraphType} provider={Provider}",
                 typeof(ProjectionGraphNode).FullName,
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index fb71a1151..1d225c1df 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -18,13 +18,13 @@
   - `WorkflowProjectionSinkFailurePolicy`（sink 异常策略）
   - `WorkflowProjectionReadModelUpdater`（read model 元信息更新）
   - `WorkflowProjectionQueryReader`（query 映射读取）
-  - Store 选择统一由 `IProjectionStoreSelectionPlanner` 执行（基于 `IDocumentReadModel/IGraphReadModel` 能力自动决策）
+  - Store 选择采用显式 providerName（Document/Graph 分离）
 - 领域上下文：`IWorkflowExecutionProjectionContextFactory`、`WorkflowExecutionProjectionContext`
 - 实时输出契约：`WorkflowRunEvent`、`IWorkflowRunEventSink`、`WorkflowRunEventChannel`（定义于 `Aevatar.Workflow.Application.Abstractions`）
 - 领域投影实现：reducers、projectors、read model（不包含 Provider Store 实现）
 - 领域 DI 组合：`AddWorkflowExecutionProjectionCQRS(...)`
-- Provider 能力校验：启动期由 `WorkflowReadModelStartupValidationHostedService` 预校验，运行时选择阶段继续按 `ProjectionProviderCapabilityValidator` 校验
-- ReadModel 选择规则统一：DI store 解析与 Startup validation 均复用 `IProjectionStoreSelectionPlanner + IProjectionStoreSelectionRuntimeOptions`，避免双处规则漂移
+- Provider 启动校验：由 `WorkflowReadModelStartupValidationHostedService` 执行 Document/Graph 两条独立 fail-fast 校验
+- ReadModel 选择规则：DI store 解析与 Startup validation 统一复用 Document/Graph runtime options（`IProjectionDocumentRuntimeOptions`、`IProjectionGraphRuntimeOptions`）
 
 本项目依赖：
 
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index 8407ba805..a7c7c39e0 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -28,17 +28,23 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
 
         var providerSelection = ResolveProviderSelection(configuration);
         EnforceGraphProviderPolicy(configuration, providerSelection.GraphProvider);
-        var runtimeOptions = new ProjectionStoreRuntimeOptions
+        var documentRuntimeOptions = new ProjectionDocumentRuntimeOptions
         {
-            DocumentProvider = providerSelection.DocumentProvider,
-            GraphProvider = providerSelection.GraphProvider,
-            FailOnUnsupportedCapabilities = true,
-            Mode = ProjectionStoreMode.Custom,
+            ProviderName = providerSelection.DocumentProvider,
+            FailFastOnStartup = true,
+        };
+        var graphRuntimeOptions = new ProjectionGraphRuntimeOptions
+        {
+            ProviderName = providerSelection.GraphProvider,
+            FailFastOnStartup = true,
         };
 
-        services.Replace(ServiceDescriptor.Singleton(runtimeOptions));
-        services.Replace(ServiceDescriptor.Singleton<IProjectionStoreSelectionRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionStoreRuntimeOptions>()));
+        services.Replace(ServiceDescriptor.Singleton(documentRuntimeOptions));
+        services.Replace(ServiceDescriptor.Singleton<IProjectionDocumentRuntimeOptions>(sp =>
+            sp.GetRequiredService<ProjectionDocumentRuntimeOptions>()));
+        services.Replace(ServiceDescriptor.Singleton(graphRuntimeOptions));
+        services.Replace(ServiceDescriptor.Singleton<IProjectionGraphRuntimeOptions>(sp =>
+            sp.GetRequiredService<ProjectionGraphRuntimeOptions>()));
 
         RegisterDocumentProvider(services, configuration, providerSelection.DocumentProvider);
         RegisterGraphProvider(services, configuration, providerSelection.GraphProvider);
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
index 2c0a5de43..f7dcfd8f7 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
@@ -8,21 +8,6 @@ namespace Aevatar.CQRS.Projection.Core.Tests;
 
 public sealed class ElasticsearchProjectionReadModelStoreBehaviorTests
 {
-    [Fact]
-    public void ProviderCapabilities_ShouldNotClaimAliasOrSchemaValidationSupport()
-    {
-        using var store = CreateStore(
-            new ElasticsearchProjectionReadModelStoreOptions
-            {
-                AutoCreateIndex = false,
-            },
-            new ScriptedHttpMessageHandler());
-
-        var capabilities = store.ProviderCapabilities;
-        capabilities.SupportsAliases.Should().BeFalse();
-        capabilities.SupportsSchemaValidation.Should().BeFalse();
-    }
-
     [Fact]
     public async Task GetAsync_WhenIndexMissingAndAutoCreateDisabled_ShouldThrowByDefault()
     {
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
index 4199a8f19..eddbf9322 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
@@ -6,65 +6,48 @@ namespace Aevatar.CQRS.Projection.Core.Tests;
 public class ProjectionReadModelRuntimeTests
 {
     [Fact]
-    public void ProviderSelector_WhenFailFastDisabled_ShouldReturnRegistration()
+    public void DocumentProviderSelector_WhenRequestedProviderMatched_ShouldReturnRegistration()
     {
-        var selector = new ProjectionDocumentStoreProviderSelector(
-            new ProjectionProviderCapabilityValidatorService());
+        var selector = new ProjectionDocumentStoreProviderSelector();
         var registrations = new List<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>
         {
-            CreateRegistration(
-                "InMemory",
-                supportsIndexing: false,
-                indexKinds: []),
+            CreateRegistration("InMemory"),
+            CreateRegistration("Elasticsearch"),
         };
 
         var selected = selector.Select(
             registrations,
-            new ProjectionStoreSelectionOptions
+            new ProjectionDocumentSelectionOptions
             {
-                RequestedProviderName = "InMemory",
-                FailOnUnsupportedCapabilities = false,
-            },
-            new ProjectionStoreRequirements(
-                requiresIndexing: true,
-                requiredIndexKinds: [ProjectionIndexKind.Document]));
+                RequestedProviderName = "inmemory",
+            });
 
         selected.ProviderName.Should().Be("InMemory");
     }
 
     [Fact]
-    public void ProviderSelector_WhenMultipleProvidersWithoutRequested_ShouldThrowStructuredException()
+    public void DocumentProviderSelector_WhenMultipleProvidersWithoutRequested_ShouldThrowStructuredException()
     {
-        var selector = new ProjectionDocumentStoreProviderSelector(
-            new ProjectionProviderCapabilityValidatorService());
+        var selector = new ProjectionDocumentStoreProviderSelector();
         var registrations = new List<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>
         {
-            CreateRegistration("InMemory", supportsIndexing: false, indexKinds: []),
-            CreateRegistration("Elasticsearch", supportsIndexing: true, indexKinds: [ProjectionIndexKind.Document]),
+            CreateRegistration("InMemory"),
+            CreateRegistration("Elasticsearch"),
         };
 
         Action act = () => selector.Select(
             registrations,
-            new ProjectionStoreSelectionOptions(),
-            new ProjectionStoreRequirements());
+            new ProjectionDocumentSelectionOptions());
 
         act.Should().Throw<ProjectionProviderSelectionException>()
             .Where(ex => ex.ReadModelType == typeof(TestReadModel));
     }
 
     private static IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>> CreateRegistration(
-        string providerName,
-        bool supportsIndexing,
-        IReadOnlyList<ProjectionIndexKind> indexKinds)
+        string providerName)
     {
-        var capabilities = new ProjectionProviderCapabilities(
-            providerName,
-            supportsIndexing,
-            indexKinds);
-
         return new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
             providerName,
-            capabilities,
             _ => new NoopStore());
     }
 
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
index 085eafe3c..0e3d5b7e9 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
@@ -1,150 +1,97 @@
+using Aevatar.CQRS.Projection.Runtime.Runtime;
 using FluentAssertions;
 
 namespace Aevatar.CQRS.Projection.Core.Tests;
 
-public class ProjectionDocumentStoreSelectorTests
+public class ProjectionReadModelStoreSelectorTests
 {
     [Fact]
-    public void Select_WhenSingleProviderRegistered_ShouldReturnSingleProvider()
+    public void DocumentSelector_WhenSingleProviderRegistered_ShouldReturnSingleProvider()
     {
+        var selector = new ProjectionDocumentStoreProviderSelector();
         var registrations = new[]
         {
-            CreateRegistration("inmemory", supportsIndexing: false),
+            CreateDocumentRegistration("inmemory"),
         };
 
-        var selected = ProjectionDocumentStoreSelector.Select(
+        var selected = selector.Select(
             registrations,
-            new ProjectionStoreSelectionOptions(),
-            new ProjectionStoreRequirements());
+            new ProjectionDocumentSelectionOptions());
 
         selected.ProviderName.Should().Be("inmemory");
     }
 
     [Fact]
-    public void Select_WhenMultipleProvidersAndNoRequestedProvider_ShouldThrow()
+    public void DocumentSelector_WhenRequestedProviderMissing_ShouldThrow()
     {
+        var selector = new ProjectionDocumentStoreProviderSelector();
         var registrations = new[]
         {
-            CreateRegistration("inmemory", supportsIndexing: false),
-            CreateRegistration("elasticsearch", supportsIndexing: true, indexKinds: [ProjectionIndexKind.Document]),
+            CreateDocumentRegistration("inmemory"),
         };
 
-        Action act = () => ProjectionDocumentStoreSelector.Select(
+        Action act = () => selector.Select(
             registrations,
-            new ProjectionStoreSelectionOptions(),
-            new ProjectionStoreRequirements());
-
-        act.Should().Throw<ProjectionProviderSelectionException>()
-            .Where(ex => ex.Reason.Contains("Multiple providers are registered", StringComparison.Ordinal));
-    }
-
-    [Fact]
-    public void Select_WhenRequestedProviderMissing_ShouldThrow()
-    {
-        var registrations = new[]
-        {
-            CreateRegistration("inmemory", supportsIndexing: false),
-        };
-
-        Action act = () => ProjectionDocumentStoreSelector.Select(
-            registrations,
-            new ProjectionStoreSelectionOptions
+            new ProjectionDocumentSelectionOptions
             {
                 RequestedProviderName = "elasticsearch",
-            },
-            new ProjectionStoreRequirements());
+            });
 
         act.Should().Throw<ProjectionProviderSelectionException>()
-            .Where(ex => ex.Reason.Contains("Requested provider is not registered", StringComparison.Ordinal));
+            .Where(ex => ex.Reason.Contains("Requested document store provider is not registered", StringComparison.Ordinal));
     }
 
     [Fact]
-    public void Select_WhenCapabilitiesUnsupportedAndFailFastEnabled_ShouldThrow()
+    public void GraphSelector_WhenRequestedProviderMatched_ShouldReturnProvider()
     {
+        var selector = new ProjectionGraphStoreProviderSelector();
         var registrations = new[]
         {
-            CreateRegistration("inmemory", supportsIndexing: false),
+            CreateGraphRegistration("inmemory"),
+            CreateGraphRegistration("neo4j"),
         };
 
-        Action act = () => ProjectionDocumentStoreSelector.Select(
+        var selected = selector.Select(
             registrations,
-            new ProjectionStoreSelectionOptions
+            new ProjectionGraphSelectionOptions
             {
-                RequestedProviderName = "inmemory",
-                FailOnUnsupportedCapabilities = true,
-            },
-            new ProjectionStoreRequirements(
-                requiresIndexing: true,
-                requiredIndexKinds: [ProjectionIndexKind.Document]));
-
-        act.Should().Throw<ProjectionProviderCapabilityValidationException>();
-    }
+                RequestedProviderName = "Neo4J",
+            });
 
-    [Fact]
-    public void Select_WhenRequiredIndexKindsAreNotFullySupported_ShouldThrow()
-    {
-        var registrations = new[]
-        {
-            CreateRegistration(
-                "neo4j",
-                supportsIndexing: true,
-                indexKinds: [ProjectionIndexKind.Graph]),
-        };
-
-        Action act = () => ProjectionDocumentStoreSelector.Select(
-            registrations,
-            new ProjectionStoreSelectionOptions
-            {
-                RequestedProviderName = "neo4j",
-                FailOnUnsupportedCapabilities = true,
-            },
-            new ProjectionStoreRequirements(
-                requiresIndexing: true,
-                requiredIndexKinds: [ProjectionIndexKind.Document, ProjectionIndexKind.Graph]));
-
-        act.Should().Throw<ProjectionProviderCapabilityValidationException>()
-            .WithMessage("*not fully supported*");
+        selected.ProviderName.Should().Be("neo4j");
     }
 
     [Fact]
-    public void Select_WhenCapabilitiesUnsupportedAndFailFastDisabled_ShouldReturnProvider()
+    public void GraphSelector_WhenNoProviderRegistered_ShouldThrow()
     {
-        var registrations = new[]
-        {
-            CreateRegistration("inmemory", supportsIndexing: false),
-        };
-
-        var selected = ProjectionDocumentStoreSelector.Select(
-            registrations,
-            new ProjectionStoreSelectionOptions
+        var selector = new ProjectionGraphStoreProviderSelector();
+        Action act = () => selector.Select(
+            [],
+            new ProjectionGraphSelectionOptions
             {
-                RequestedProviderName = "inmemory",
-                FailOnUnsupportedCapabilities = false,
-            },
-            new ProjectionStoreRequirements(
-                requiresIndexing: true,
-                requiredIndexKinds: [ProjectionIndexKind.Document]));
+                RequestedProviderName = ProjectionProviderNames.InMemory,
+            });
 
-        selected.ProviderName.Should().Be("inmemory");
+        act.Should().Throw<ProjectionProviderSelectionException>()
+            .Where(ex => ex.Reason.Contains("No relation store provider registrations", StringComparison.Ordinal));
     }
 
-    private static IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>> CreateRegistration(
-        string providerName,
-        bool supportsIndexing,
-        IEnumerable<ProjectionIndexKind>? indexKinds = null)
+    private static IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>> CreateDocumentRegistration(
+        string providerName)
     {
-        var capabilities = new ProjectionProviderCapabilities(
+        return new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
             providerName,
-            supportsIndexing,
-            indexKinds);
+            _ => new NoopDocumentStore());
+    }
 
-        return new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+    private static IProjectionStoreRegistration<IProjectionGraphStore> CreateGraphRegistration(string providerName)
+    {
+        return new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
             providerName,
-            capabilities,
-            _ => new NoopStore());
+            _ => new NoopGraphStore());
     }
 
-    private sealed class NoopStore : IDocumentProjectionStore<TestReadModel, string>
+    private sealed class NoopDocumentStore : IDocumentProjectionStore<TestReadModel, string>
     {
         public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default) => Task.CompletedTask;
 
@@ -156,5 +103,20 @@ public Task<IReadOnlyList<TestReadModel>> ListAsync(int take = 50, CancellationT
             Task.FromResult<IReadOnlyList<TestReadModel>>([]);
     }
 
+    private sealed class NoopGraphStore : IProjectionGraphStore
+    {
+        public Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default) => Task.CompletedTask;
+
+        public Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default) => Task.CompletedTask;
+
+        public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default) => Task.CompletedTask;
+
+        public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(ProjectionGraphQuery query, CancellationToken ct = default) =>
+            Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>([]);
+
+        public Task<ProjectionGraphSubgraph> GetSubgraphAsync(ProjectionGraphQuery query, CancellationToken ct = default) =>
+            Task.FromResult(new ProjectionGraphSubgraph());
+    }
+
     private sealed class TestReadModel;
 }
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs
deleted file mode 100644
index f8c027860..000000000
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreSelectionPlannerTests.cs
+++ /dev/null
@@ -1,101 +0,0 @@
-using Aevatar.CQRS.Projection.Runtime.Runtime;
-using FluentAssertions;
-
-namespace Aevatar.CQRS.Projection.Core.Tests;
-
-public sealed class ProjectionStoreSelectionPlannerTests
-{
-    private readonly ProjectionStoreSelectionPlanner _planner =
-        new();
-
-    [Fact]
-    public void Build_WhenReadModelProviderIsEmpty_ShouldThrow()
-    {
-        var options = new FakeOptions
-        {
-            DocumentProvider = " ",
-        };
-
-        Action act = () => _planner.Build(options, typeof(TestReadModel), new ProjectionStoreRequirements());
-
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*read-model provider is required*");
-    }
-
-    [Fact]
-    public void Build_WhenRelationProviderMissing_ShouldFallbackToReadModelProvider()
-    {
-        var options = new FakeOptions
-        {
-            DocumentProvider = ProjectionProviderNames.Neo4j,
-            GraphProvider = " ",
-        };
-
-        var plan = _planner.Build(options, typeof(TestReadModel), new ProjectionStoreRequirements(
-            requiresGraph: true,
-            requiresGraphTraversal: true));
-
-        plan.DocumentSelectionOptions.RequestedProviderName.Should().Be(ProjectionProviderNames.Neo4j);
-        plan.GraphSelectionOptions.RequestedProviderName.Should().Be(ProjectionProviderNames.Neo4j);
-    }
-
-    [Fact]
-    public void Build_ShouldMergeGraphRequirementsWithReadModelAliasAndSchemaRequirements()
-    {
-        var options = new FakeOptions
-        {
-            DocumentProvider = ProjectionProviderNames.Neo4j,
-        };
-        var graphRequirements = new ProjectionStoreRequirements(
-            requiresGraph: true,
-            requiresGraphTraversal: true,
-            requiresAliases: false,
-            requiresSchemaValidation: false);
-
-        var plan = _planner.Build(options, typeof(TestGraphReadModel), graphRequirements);
-
-        plan.GraphRequirements.RequiresGraph.Should().BeTrue();
-        plan.GraphRequirements.RequiresGraphTraversal.Should().BeTrue();
-        plan.GraphRequirements.RequiresAliases.Should().BeFalse();
-        plan.GraphRequirements.RequiresSchemaValidation.Should().BeFalse();
-    }
-
-    [Fact]
-    public void Build_WhenStateOnlyModeConfigured_ShouldThrow()
-    {
-        var options = new FakeOptions
-        {
-            DocumentProvider = ProjectionProviderNames.InMemory,
-            StoreMode = ProjectionStoreMode.StateOnly,
-        };
-
-        Action act = () => _planner.Build(options, typeof(TestReadModel), new ProjectionStoreRequirements());
-
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*does not support*StateOnly*");
-    }
-
-    private sealed class FakeOptions : IProjectionStoreSelectionRuntimeOptions
-    {
-        public string DocumentProvider { get; set; } = ProjectionProviderNames.InMemory;
-
-        public string GraphProvider { get; set; } = "";
-
-        public bool FailOnUnsupportedCapabilities { get; set; } = true;
-
-        public ProjectionStoreMode StoreMode { get; set; } = ProjectionStoreMode.Custom;
-    }
-
-    private sealed class TestReadModel;
-
-    private sealed class TestGraphReadModel : IGraphReadModel
-    {
-        public string Id => "test";
-
-        public string GraphScope => "test";
-
-        public IReadOnlyList<GraphNodeDescriptor> GraphNodes => [];
-
-        public IReadOnlyList<GraphEdgeDescriptor> GraphEdges => [];
-    }
-}
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index db1ede0f0..ef8d3e5be 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -27,7 +27,7 @@ public async Task AddWorkflowExecutionProjectionCQRS_WhenNoProvidersRegistered_S
         Func<Task> act = () => StartHostedServicesAsync(provider);
 
         await act.Should().ThrowAsync<ProjectionProviderSelectionException>()
-            .WithMessage("*No provider registrations were found*");
+            .WithMessage("*No document store provider registrations were found*");
     }
 
     [Fact]
@@ -60,11 +60,10 @@ public void AddWorkflowExecutionProjectionCQRS_WhenDocumentElasticsearchAndGraph
         var services = new ServiceCollection();
         RegisterInMemoryProviders(services);
         RegisterElasticsearchDocumentProvider(services);
-        ConfigureStoreSelectionOptions(services, options =>
-        {
-            options.DocumentProvider = ProjectionProviderNames.Elasticsearch;
-            options.GraphProvider = ProjectionProviderNames.InMemory;
-        });
+        ConfigureStoreSelectionOptions(
+            services,
+            documentProvider: ProjectionProviderNames.Elasticsearch,
+            graphProvider: ProjectionProviderNames.InMemory);
         services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
@@ -80,11 +79,10 @@ public void AddWorkflowExecutionProjectionCQRS_WhenGraphProviderMissing_ShouldTh
     {
         var services = new ServiceCollection();
         RegisterElasticsearchDocumentProvider(services);
-        ConfigureStoreSelectionOptions(services, options =>
-        {
-            options.DocumentProvider = ProjectionProviderNames.Elasticsearch;
-            options.GraphProvider = ProjectionProviderNames.Elasticsearch;
-        });
+        ConfigureStoreSelectionOptions(
+            services,
+            documentProvider: ProjectionProviderNames.Elasticsearch,
+            graphProvider: ProjectionProviderNames.Elasticsearch);
         services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
@@ -122,13 +120,26 @@ private static void RegisterElasticsearchDocumentProvider(IServiceCollection ser
 
     private static void ConfigureStoreSelectionOptions(
         IServiceCollection services,
-        Action<ProjectionStoreRuntimeOptions> configure)
+        string documentProvider,
+        string graphProvider)
     {
-        var options = new ProjectionStoreRuntimeOptions();
-        configure(options);
-        services.Replace(ServiceDescriptor.Singleton(options));
-        services.Replace(ServiceDescriptor.Singleton<IProjectionStoreSelectionRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionStoreRuntimeOptions>()));
+        var documentOptions = new ProjectionDocumentRuntimeOptions
+        {
+            ProviderName = documentProvider,
+            FailFastOnStartup = true,
+        };
+        var graphOptions = new ProjectionGraphRuntimeOptions
+        {
+            ProviderName = graphProvider,
+            FailFastOnStartup = true,
+        };
+
+        services.Replace(ServiceDescriptor.Singleton(documentOptions));
+        services.Replace(ServiceDescriptor.Singleton<IProjectionDocumentRuntimeOptions>(sp =>
+            sp.GetRequiredService<ProjectionDocumentRuntimeOptions>()));
+        services.Replace(ServiceDescriptor.Singleton(graphOptions));
+        services.Replace(ServiceDescriptor.Singleton<IProjectionGraphRuntimeOptions>(sp =>
+            sp.GetRequiredService<ProjectionGraphRuntimeOptions>()));
     }
 
     private static async Task StartHostedServicesAsync(IServiceProvider provider)
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index 508e1bf72..256d857f0 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -117,18 +117,23 @@ public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_S
         var relationRegistrations = services
             .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionGraphStore>))
             .ToList();
-        var selectionOptionsRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreSelectionRuntimeOptions))
+        var documentRuntimeOptionRegistrations = services
+            .Where(x => x.ServiceType == typeof(IProjectionDocumentRuntimeOptions))
+            .ToList();
+        var graphRuntimeOptionRegistrations = services
+            .Where(x => x.ServiceType == typeof(IProjectionGraphRuntimeOptions))
             .ToList();
 
         providerRegistrations.Should().HaveCount(1);
         relationRegistrations.Should().HaveCount(1);
-        selectionOptionsRegistrations.Should().HaveCount(1);
+        documentRuntimeOptionRegistrations.Should().HaveCount(1);
+        graphRuntimeOptionRegistrations.Should().HaveCount(1);
 
         using var provider = services.BuildServiceProvider();
-        var selectionOptions = provider.GetRequiredService<IProjectionStoreSelectionRuntimeOptions>();
-        selectionOptions.DocumentProvider.Should().Be(ProjectionProviderNames.Elasticsearch);
-        selectionOptions.GraphProvider.Should().Be(ProjectionProviderNames.InMemory);
+        var documentOptions = provider.GetRequiredService<IProjectionDocumentRuntimeOptions>();
+        var graphOptions = provider.GetRequiredService<IProjectionGraphRuntimeOptions>();
+        documentOptions.ProviderName.Should().Be(ProjectionProviderNames.Elasticsearch);
+        graphOptions.ProviderName.Should().Be(ProjectionProviderNames.InMemory);
     }
 
     [Fact]

From b61134b791f0505ac8225c387bce78d35b589f1a Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 00:48:44 +0800
Subject: [PATCH 31/46] Refactor Projection ReadModel Architecture and
 Streamline Provider Selection

- Updated the Projection ReadModel documentation to reflect the latest architectural changes, including the removal of the capabilities model and the introduction of explicit provider selection.
- Refactored dependency injection configurations to consolidate provider selection logic within factories, enhancing clarity and reducing complexity.
- Removed deprecated startup validators and provider registries, streamlining the initialization process for document and graph stores.
- Introduced new runtime options classes to replace previous selection options, ensuring a more straightforward configuration approach.
- Improved overall documentation to provide clearer guidance on the new abstractions and provider functionalities.
---
 ...readmodel-full-refactor-plan-2026-02-24.md | 344 ++++++------------
 .../Core/IProjectionStoreRegistration.cs      |   5 +-
 .../IProjectionDocumentRuntimeOptions.cs      |   8 -
 .../IProjectionDocumentStartupValidator.cs    |   9 -
 .../ProjectionDocumentRuntimeOptions.cs       |   2 +-
 .../ProjectionDocumentSelectionOptions.cs     |   6 -
 .../Graphs/IProjectionGraphRuntimeOptions.cs  |   8 -
 .../IProjectionGraphStartupValidator.cs       |   8 -
 .../Graphs/IProjectionGraphStoreFactory.cs    |   2 +-
 .../IProjectionGraphStoreProviderRegistry.cs  |   6 -
 .../IProjectionGraphStoreProviderSelector.cs  |   8 -
 .../Graphs/ProjectionGraphRuntimeOptions.cs   |   2 +-
 .../Graphs/ProjectionGraphSelectionOptions.cs |   6 -
 .../IProjectionDocumentStoreFactory.cs        |   2 +-
 ...ProjectionDocumentStoreProviderRegistry.cs |   8 -
 ...ProjectionDocumentStoreProviderSelector.cs |   9 -
 .../README.md                                 |  11 +-
 .../ServiceCollectionExtensions.cs            |   6 -
 src/Aevatar.CQRS.Projection.Runtime/README.md |   9 +-
 .../ProjectionDocumentStartupValidator.cs     |  27 --
 .../Runtime/ProjectionDocumentStoreFactory.cs |  22 +-
 ...ProjectionDocumentStoreProviderRegistry.cs |  16 -
 ...ProjectionDocumentStoreProviderSelector.cs |  83 -----
 .../ProjectionGraphStartupValidator.cs        |  26 --
 .../Runtime/ProjectionGraphStoreFactory.cs    |  22 +-
 .../ProjectionGraphStoreProviderRegistry.cs   |  14 -
 .../ProjectionGraphStoreProviderSelector.cs   |  83 -----
 .../ProjectionStoreRegistrationSelector.cs    |  52 +++
 .../ReadModels/IDocumentReadModel.cs          |   5 +-
 .../README.md                                 |   2 +-
 .../ServiceCollectionExtensions.cs            |  32 +-
 ...ReadModelStartupValidationHostedService.cs |  38 +-
 .../Aevatar.Workflow.Projection/README.md     |   2 +-
 .../ReadModels/WorkflowExecutionReadModel.cs  |   2 -
 ...tionProviderServiceCollectionExtensions.cs |   4 -
 .../ProjectionReadModelRuntimeTests.cs        |  71 ++--
 .../ProjectionReadModelStoreSelectorTests.cs  | 120 ++----
 ...lowExecutionProjectionRegistrationTests.cs |   4 -
 .../WorkflowHostingExtensionsCoverageTests.cs |   8 +-
 39 files changed, 301 insertions(+), 791 deletions(-)
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentStartupValidator.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentSelectionOptions.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStartupValidator.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderRegistry.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphSelectionOptions.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderRegistry.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStartupValidator.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderRegistry.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderSelector.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStartupValidator.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderRegistry.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderSelector.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreRegistrationSelector.cs

diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
index fe2e50db7..312d05694 100644
--- a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
+++ b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
@@ -1,53 +1,31 @@
-# Projection ReadModel 全量重构实施文档（v9，无兼容，无能力模型）
+# Projection ReadModel 全量重构实施文档（v10，无兼容，极简抽象）
 
 > 日期：2026-02-24  
 > 范围：`Aevatar.CQRS.Projection.Stores.Abstractions`、`Aevatar.CQRS.Projection.Core.Abstractions`、`Aevatar.CQRS.Projection.Runtime.Abstractions`、`Aevatar.CQRS.Projection.Runtime`、`Aevatar.Workflow.Projection`
 
 ## 1. 结论先行
 
-核心关系定义：`ReadModel` 与 `ProjectionTarget` 是标准 `1:N` 关系。
+核心关系定义：`ReadModel -> ProjectionTarget` 是标准 `1:N`。
 
-当前已实现 `N=2`：
+当前固定实现 `N=2`：
 
-1. `DocumentTarget`（Document Provider 链路）
-2. `GraphTarget`（Graph Provider 链路）
+1. `DocumentTarget`（`IDocumentProjectionStore<,>`）
+2. `GraphTarget`（`IProjectionGraphStore`）
 
-关键决策（本版）：
+本版最终架构（已落地）：
 
-1. 删除能力模型（`Capabilities/Requirements/CapabilityValidator`）整层。
-2. Provider 选择改为“显式配置 + 启动失败即终止（fail-fast）”，不做能力协商与自动降级。
-3. 索引与关系语义全部保留：
-   - 索引：Document 链路（ES 等）
-   - 关系：Graph 链路（Neo4j 等）
-4. 写入编排保持单次路由、多目标分发（`1:N`）。
+1. 不保留能力模型（Capabilities/Requirements/Validator）。
+2. 不保留运行时薄封装层（Provider Registry / Provider Selector / Startup Validator）。
+3. Provider 选择逻辑内聚到两个 Factory：
+   - `ProjectionDocumentStoreFactory`
+   - `ProjectionGraphStoreFactory`
+4. Startup fail-fast 直接通过 Factory 触发真实 store 创建校验，不再多一层 validator。
+5. Document metadata 继续保留，且由 `IProjectionDocumentMetadataProvider<TReadModel>`（ReadModel 泛型）提供。
+6. `IDocumentReadModel` 收敛为 marker，删除无效 `DocumentScope` 字段。
 
-## 2. 当前实现诊断（As-Is）
+## 2. 当前架构（v10）
 
-### 2.1 已经对齐的部分
-
-1. `Stores.Abstractions` 已基本收敛为纯存储契约（`IDocumentProjectionStore<,>` + `IProjectionGraphStore`）。
-2. `IGraphProjectionStore<TReadModel>` 已删除，改用 `IProjectionGraphMaterializer<TReadModel>` 作为图写入适配层。
-3. Workflow 查询已直接读取 `IProjectionGraphStore`，不再从 Materializer 读图。
-
-### 2.2 需要继续删除的旧语义
-
-1. 统一计划模型（Doc+Graph 绑定）：
-   - `ProjectionStoreSelectionPlan`
-   - `IProjectionStoreSelectionPlanner`
-   - `ProjectionStoreSelectionPlanner`
-2. 统一能力模型：
-   - `ProjectionProviderCapabilities`
-   - `ProjectionStoreRequirements`
-   - `IProjectionProviderCapabilityValidator`
-   - `ProjectionProviderCapabilityValidator`
-3. 统一启动校验接口：
-   - `IProjectionStoreStartupValidator`
-   - `ProjectionStoreStartupValidator`
-4. Workflow DI 仍使用统一 `BuildSelectionPlan`。
-
-## 3. 目标架构（To-Be）
-
-### 3.1 主链路 + 一对多目标分发
+### 2.1 运行主链路
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
@@ -56,243 +34,133 @@ flowchart LR
     RED --> RM["ReadModel(T)"]
     RM --> ROUTER["IProjectionMaterializationRouter<T,TKey>"]
 
-    ROUTER --> TARGETS["Projection Targets (1..N)"]
-
-    TARGETS --> DOC_ROUTE["Document Target\n(If T : IDocumentReadModel)"]
-    TARGETS --> GRA_ROUTE["Graph Target\n(If T : IGraphReadModel)"]
-    TARGETS --> EXT_ROUTE["Future Target\n(Extensible)"]
+    ROUTER --> DOC_GATE["if T : IDocumentReadModel"]
+    ROUTER --> GRA_GATE["if T : IGraphReadModel"]
 
-    DOC_ROUTE --> DOC_FACTORY["IProjectionDocumentStoreFactory"]
-    DOC_FACTORY --> DOC_STORE["IDocumentProjectionStore<T,TKey>"]
-
-    GRA_ROUTE --> GRA_MAT["IProjectionGraphMaterializer<T>"]
+    DOC_GATE --> DOC_STORE["IDocumentProjectionStore<T,TKey>"]
+    GRA_GATE --> GRA_MAT["IProjectionGraphMaterializer<T>"]
     GRA_MAT --> GRA_STORE["IProjectionGraphStore"]
 ```
 
-当前落地状态：`Projection Targets` 已实现 `Document + Graph` 两类目标。
-
-### 3.2 Provider 选择（无能力协商）
+### 2.2 Provider 选择与启动校验（极简）
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart TB
-    DOC_CFG["Projection:Document:Provider"] --> DOC_SEL["DocumentProviderSelector"]
-    DOC_REG["DocumentProviderRegistry"] --> DOC_SEL
-    DOC_SEL --> DOC_FACTORY["DocumentStoreFactory"]
+    CFG_DOC["ProjectionDocumentRuntimeOptions.ProviderName"] --> DOC_FACTORY["ProjectionDocumentStoreFactory"]
+    CFG_GRA["ProjectionGraphRuntimeOptions.ProviderName"] --> GRA_FACTORY["ProjectionGraphStoreFactory"]
 
-    GRA_CFG["Projection:Graph:Provider"] --> GRA_SEL["GraphProviderSelector"]
-    GRA_REG["GraphProviderRegistry"] --> GRA_SEL
-    GRA_SEL --> GRA_FACTORY["GraphStoreFactory"]
-```
-
-选择规则：
+    REG_DOC["IProjectionStoreRegistration<IDocumentProjectionStore<,>>[]"] --> DOC_FACTORY
+    REG_GRA["IProjectionStoreRegistration<IProjectionGraphStore>[]"] --> GRA_FACTORY
 
-1. 配置必须明确指定 provider（或使用明确默认值）。
-2. 选择器仅做 provider name 匹配与唯一性判断。
-3. 启动时仅做注册存在性 + 基础连接健康检查；失败立即报错退出。
+    DOC_FACTORY --> DOC_CREATED["Create Document Store"]
+    GRA_FACTORY --> GRA_CREATED["Create Graph Store"]
 
-### 3.3 查询组合门面（降低开发负担）
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-    API["Query API"] --> FACADE["ProjectionQueryFacade"]
-    FACADE --> GQ["GraphQueryReader"]
-    FACADE --> DQ["DocumentQueryReader"]
-    GQ --> NEO["Graph Provider (e.g. Neo4j)"]
-    DQ --> ES["Document Provider (e.g. ES)"]
-    FACADE --> DTO["Enriched Graph DTO"]
+    STARTUP["WorkflowReadModelStartupValidationHostedService"] --> DOC_FACTORY
+    STARTUP --> GRA_FACTORY
 ```
 
-说明：业务层只调用 Facade，不再手工双查（先 Neo4j 再 ES）。
-
-## 4. 契约重构（无兼容，直接替换）
+选择规则（统一）：
 
-### 4.1 保留的核心语义
+1. 没有注册 provider -> 失败。
+2. 有多个注册但未指定 providerName -> 失败。
+3. 指定 providerName 但未命中 -> 失败。
+4. 命中后创建失败 -> 失败。
 
-1. `IDocumentProjectionStore<,>`：文档快照与索引写入。
-2. `IProjectionGraphStore`：图节点/边关系写入与遍历查询。
-3. `IProjectionMaterializationRouter<,>`：单次写入流程的多目标分发。
-4. `IProjectionGraphMaterializer<TReadModel>`：从 ReadModel 派生图节点/边并写入 Graph。
+## 3. 冗余删除清单（第二轮彻底去层）
 
-### 4.2 删除的抽象层
+### 3.1 Runtime.Abstractions 删除
 
-删除整层能力协商模型：
-
-1. `ProjectionProviderCapabilities`
-2. `ProjectionStoreRequirements`
-3. `IProjectionProviderCapabilityValidator`
-4. `ProjectionProviderCapabilityValidator`
-5. `ProjectionProviderCapabilityValidationException`
-
-删除统一计划模型：
-
-1. `ProjectionStoreSelectionPlan`
-2. `IProjectionStoreSelectionPlanner`
-3. `ProjectionStoreSelectionPlanner`
-4. `IProjectionStoreSelectionRuntimeOptions`
-5. `ProjectionStoreRuntimeOptions`
-
-### 4.3 新的运行时配置模型
-
-拆为两条独立配置契约：
-
-1. `IProjectionDocumentRuntimeOptions`
-2. `IProjectionGraphRuntimeOptions`
-
-建议最小字段：
-
-1. `ProviderName`
-2. `FailFastOnStartup`
+1. `Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs`
+2. `Abstractions/Documents/IProjectionDocumentStartupValidator.cs`
+3. `Abstractions/Documents/ProjectionDocumentSelectionOptions.cs`
+4. `Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs`
+5. `Abstractions/Graphs/IProjectionGraphStartupValidator.cs`
+6. `Abstractions/Graphs/IProjectionGraphStoreProviderRegistry.cs`
+7. `Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs`
+8. `Abstractions/Graphs/ProjectionGraphSelectionOptions.cs`
+9. `Abstractions/ReadModels/IProjectionDocumentStoreProviderRegistry.cs`
+10. `Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs`
 
-不再包含：`Requirements`、`Capabilities`、`FailOnUnsupportedCapabilities` 等协商语义。
+### 3.2 Runtime 删除
 
-### 4.4 启动校验模型
+1. `Runtime/ProjectionDocumentStoreProviderRegistry.cs`
+2. `Runtime/ProjectionDocumentStoreProviderSelector.cs`
+3. `Runtime/ProjectionDocumentStartupValidator.cs`
+4. `Runtime/ProjectionGraphStoreProviderRegistry.cs`
+5. `Runtime/ProjectionGraphStoreProviderSelector.cs`
+6. `Runtime/ProjectionGraphStartupValidator.cs`
 
-统一启动校验器拆分为：
+### 3.3 Stores.Abstractions 收敛
 
-1. `IProjectionDocumentStartupValidator`
-2. `IProjectionGraphStartupValidator`
+1. `IDocumentReadModel` 从带字段接口改为 marker。
+2. 删除 `WorkflowExecutionReport.DocumentScope` 冗余实现。
 
-校验范围：
+## 4. 保留并强化的核心抽象
 
-1. 目标 provider 是否注册。
-2. 目标 provider 是否可创建。
-3. 基础连接健康检查（如 ES ping、Neo4j session）。
+1. `IProjectionStoreRegistration<TStore>`：Provider 注册单一契约。
+2. `IProjectionDocumentStoreFactory`：Document provider 选择 + 实例创建。
+3. `IProjectionGraphStoreFactory`：Graph provider 选择 + 实例创建。
+4. `ProjectionProviderSelectionException`：统一 fail-fast 错误模型。
+5. `ProjectionDocumentRuntimeOptions` / `ProjectionGraphRuntimeOptions`：最小配置模型。
 
-不再校验：抽象能力矩阵。
+## 5. 与项目实际结构的落地映射
 
-## 5. ReadModel 声明模型（保留索引/关系）
+### 5.1 Runtime 层
 
-目标：开发者只定义 `State + ReadModel`，由 ReadModel 声明决定投影目标。
+- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreRegistrationSelector.cs`
+  - 新增统一选择算法。
+- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs`
+  - 直接从 `IServiceProvider.GetServices<IProjectionStoreRegistration<...>>()` 拉注册并选择。
+- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs`
+  - 同上。
+- `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs`
+  - 仅注册 Factory / Materializer / Router / MetadataResolver。
 
-建议契约（目标态）：
+### 5.2 Workflow 组装层
 
-```csharp
-public interface IProjectionReadModel {}
+- `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`
+  - 直接注入并使用 `ProjectionDocumentRuntimeOptions` / `ProjectionGraphRuntimeOptions`。
+  - Store 解析直接调用 factory + providerName。
+- `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs`
+  - 启动校验改为直接调用 factory `Create(...)`。
+- `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
+  - 只注册 concrete options，不再注册 interface 转发。
 
-public interface IDocumentReadModel<TDocumentMetadataProvider> : IProjectionReadModel
-    where TDocumentMetadataProvider : IProjectionDocumentMetadataProvider, new()
-{
-}
+### 5.3 测试层
 
-public interface IGraphReadModel<TGraphDescriptorProvider> : IProjectionReadModel
-    where TGraphDescriptorProvider : IProjectionGraphDescriptorProvider, new()
-{
-}
-```
+- `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs`
+  - 改为测试 DocumentFactory 选择行为。
+- `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs`
+  - 改为测试 GraphFactory 选择行为。
+- `test/Aevatar.Workflow.Host.Api.Tests/*`
+  - 运行时 options 断言切换为 concrete 类型。
 
-语义结果：
+## 6. 开发者体验结果
 
-1. `T : IDocumentReadModel<...>` -> 进入 DocumentTarget，保留索引能力。
-2. `T : IGraphReadModel<...>` -> 进入 GraphTarget，保留关系能力。
-3. 同时实现两者 -> 同一次流程扇出到两个目标（Doc + Graph）。
-4. 该模型本质是 `1:N`，不是二选一。
+开发者当前只需要关心三件事：
 
-## 6. 与项目现状对齐的实施计划
+1. 定义 ReadModel（实现 `IDocumentReadModel` / `IGraphReadModel` 或同时实现）。
+2. 注册对应 Provider（Document 与 Graph 各自独立注册）。
+3. 配置 `ProjectionDocumentRuntimeOptions.ProviderName` 与 `ProjectionGraphRuntimeOptions.ProviderName`。
 
-### Phase 1：删除统一计划与能力模型（Runtime.Abstractions）
+系统会在：
 
-删除文件（按现有路径）：
+1. 运行时写入阶段自动执行 `1:N` 分发。
+2. 启动阶段通过真实 store 创建做 fail-fast。
 
-1. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelectionPlan.cs`
-2. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionPlanner.cs`
-3. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreSelectionRuntimeOptions.cs`
-4. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionStoreStartupValidator.cs`
-5. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionStoreSelector.cs`
-6. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRuntimeOptions.cs`
-7. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreRequirements.cs`
-8. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionStoreSelectionOptions.cs`
-9. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilities.cs`
-10. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionProviderCapabilityValidator.cs`
-11. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidator.cs`
-12. `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderCapabilityValidationException.cs`
+## 7. 验收标准（v10）
 
-新增文件（示例命名）：
+全部满足即视为“彻底重构完成”：
 
-1. `Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs`
-2. `Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs`
-3. `Abstractions/Documents/ProjectionDocumentSelectionOptions.cs`
-4. `Abstractions/Documents/IProjectionDocumentStartupValidator.cs`
-5. `Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs`
-6. `Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs`
-7. `Abstractions/Graphs/ProjectionGraphSelectionOptions.cs`
-8. `Abstractions/Graphs/IProjectionGraphStartupValidator.cs`
-
-### Phase 2：Runtime 实现替换（无能力协商）
-
-1. 删除 `Runtime/ProjectionStoreSelectionPlanner.cs`。
-2. 删除 `Runtime/ProjectionStoreStartupValidator.cs`，拆分实现：
-   - `Runtime/ProjectionDocumentStartupValidator.cs`
-   - `Runtime/ProjectionGraphStartupValidator.cs`
-3. 删除 `Runtime/ProjectionProviderCapabilityValidatorService.cs`。
-4. `ProjectionDocumentStoreFactory` 与 `ProjectionGraphStoreFactory` 改为仅接收对应 `SelectionOptions`。
-5. `ProjectionDocumentStoreProviderSelector` 与 `ProjectionGraphStoreProviderSelector` 去掉 `requirements/capabilityValidator` 参数。
-
-### Phase 3：Workflow 依赖替换
-
-改造文件：
-
-1. `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`
-   - 删除 `BuildSelectionPlan`。
-   - 文档与图分别读取各自 runtime options。
-2. `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs`
-   - 注入拆分后的 Document/Graph StartupValidator。
-3. `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
-   - 分别注册 `ProjectionDocumentRuntimeOptions` 与 `ProjectionGraphRuntimeOptions`。
-
-### Phase 4：ReadModel 泛型声明落地（索引与关系显式化）
-
-1. `Stores.Abstractions` 将 `IDocumentReadModel`、`IGraphReadModel` 升级为泛型声明。
-2. Document metadata 由 ReadModel 泛型 provider 提供（索引名、mapping、alias）。
-3. Graph descriptor 由 ReadModel 泛型 provider 提供（节点与边关系定义）。
-
-### Phase 5：查询门面落地
-
-1. 在 `Workflow.Projection` 增加 `ProjectionQueryFacade`。
-2. 提供单入口：输入 rootId，返回文档快照 + 图子图（可选深度）。
-3. API 仅依赖 Facade，不直接双查存储。
-
-### Phase 6：测试与门禁
-
-1. 删除或重写依赖 `ProjectionStoreSelectionPlan`、`ProjectionStoreRequirements`、`ProjectionProviderCapabilities` 的测试。
-2. 新增测试：
-   - Document provider selection（name match/unique/fail-fast）
-   - Graph provider selection（name match/unique/fail-fast）
-   - Router `1:N` 扇出写入
-   - Query facade 组合查询
-3. `tools/ci/architecture_guards.sh` 增加规则：
-   - 禁止 `ProjectionStoreSelectionPlan` 回流。
-   - 禁止 `ProjectionStoreRequirements` 回流。
-   - 禁止 `ProjectionProviderCapabilities` 回流。
-   - 禁止 `CapabilityValidator` 回流。
-
-## 7. 验收标准
-
-全部满足即重构完成：
-
-1. `Runtime.Abstractions` 与 `Runtime` 中不再存在能力协商模型（Capabilities/Requirements/Validator）。
-2. `MaterializationRouter` 明确采用 `ReadModel -> Targets(1:N)` 扇出模型，当前 `N=2`（Document、Graph）。
-3. ReadModel 同时声明文档与图能力时，单流程双写可用。
-4. Document 索引语义保留并可验证（metadata 生效）。
-5. Graph 关系语义保留并可验证（节点/边写入与遍历查询可用）。
-6. Workflow 查询提供单门面，业务方无需手工双查。
-
-## 8. 验证命令
-
-```bash
-dotnet restore aevatar.slnx --nologo
-dotnet build aevatar.slnx --nologo
-dotnet test aevatar.slnx --nologo
-bash tools/ci/architecture_guards.sh
-bash tools/ci/projection_route_mapping_guard.sh
-bash tools/ci/solution_split_guards.sh
-bash tools/ci/solution_split_test_guards.sh
-bash tools/ci/test_stability_guards.sh
-```
+1. Runtime 不存在 Provider Registry/Selector/StartupValidator 三类薄层。
+2. Runtime.Abstractions 不存在对应接口与 SelectionOptions 接口模型。
+3. Store 选择只通过 factory + providerName 执行。
+4. Document metadata 与 Graph relation 语义都保留并可运行。
+5. `ReadModel -> Targets` 明确为 `1:N`，当前 `N=2`。
+6. `dotnet build` 与相关测试通过。
 
-## 9. 执行策略
+## 8. 后续可选继续收敛（不影响当前完成态）
 
-1. 删除优先，不保留兼容层与转发壳。
-2. 所有旧命名（`ProjectionStore*` 统一计划/能力模型）直接移除。
-3. 编译失败点逐项修复到新语义。
+1. 若继续极简，可把 `IProjectionDocumentStoreFactory` / `IProjectionGraphStoreFactory` 也收敛为 concrete 注入。
+2. 若继续减少类型数量，可评估 `GraphNodeDescriptor/GraphEdgeDescriptor` 与 `ProjectionGraphNode/ProjectionGraphEdge` 的边界合并。
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
index 99837a996..d43210ba0 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
@@ -1,11 +1,8 @@
 namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
-public interface IProjectionStoreRegistration
+public interface IProjectionStoreRegistration<out TStore>
 {
     string ProviderName { get; }
-}
 
-public interface IProjectionStoreRegistration<out TStore> : IProjectionStoreRegistration
-{
     TStore Create(IServiceProvider serviceProvider);
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs
deleted file mode 100644
index 241d97d2f..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionDocumentRuntimeOptions
-{
-    string ProviderName { get; }
-
-    bool FailFastOnStartup { get; }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentStartupValidator.cs
deleted file mode 100644
index 91f4b42f6..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/IProjectionDocumentStartupValidator.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionDocumentStartupValidator
-{
-    IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> ValidateProvider<TReadModel, TKey>(
-        IServiceProvider serviceProvider,
-        ProjectionDocumentSelectionOptions selectionOptions)
-        where TReadModel : class;
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs
index 92eb4b762..798f093be 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
-public sealed class ProjectionDocumentRuntimeOptions : IProjectionDocumentRuntimeOptions
+public sealed class ProjectionDocumentRuntimeOptions
 {
     public string ProviderName { get; set; } = ProjectionProviderNames.InMemory;
 
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentSelectionOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentSelectionOptions.cs
deleted file mode 100644
index 0269884c4..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentSelectionOptions.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public sealed class ProjectionDocumentSelectionOptions
-{
-    public string RequestedProviderName { get; set; } = "";
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs
deleted file mode 100644
index a8f2662b3..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionGraphRuntimeOptions
-{
-    string ProviderName { get; }
-
-    bool FailFastOnStartup { get; }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStartupValidator.cs
deleted file mode 100644
index 27eaec634..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStartupValidator.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionGraphStartupValidator
-{
-    IProjectionStoreRegistration<IProjectionGraphStore> ValidateProvider(
-        IServiceProvider serviceProvider,
-        ProjectionGraphSelectionOptions selectionOptions);
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
index 51882ed82..3bf71bf3d 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
@@ -4,5 +4,5 @@ public interface IProjectionGraphStoreFactory
 {
     IProjectionGraphStore Create(
         IServiceProvider serviceProvider,
-        ProjectionGraphSelectionOptions selectionOptions);
+        string? requestedProviderName = null);
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderRegistry.cs
deleted file mode 100644
index 41f845942..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderRegistry.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionGraphStoreProviderRegistry
-{
-    IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> GetRegistrations(IServiceProvider serviceProvider);
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs
deleted file mode 100644
index 2e4969e55..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionGraphStoreProviderSelector
-{
-    IProjectionStoreRegistration<IProjectionGraphStore> Select(
-        IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> registrations,
-        ProjectionGraphSelectionOptions selectionOptions);
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs
index 536470faf..f2be02012 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
-public sealed class ProjectionGraphRuntimeOptions : IProjectionGraphRuntimeOptions
+public sealed class ProjectionGraphRuntimeOptions
 {
     public string ProviderName { get; set; } = ProjectionProviderNames.InMemory;
 
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphSelectionOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphSelectionOptions.cs
deleted file mode 100644
index 67e3c2a9a..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphSelectionOptions.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public sealed class ProjectionGraphSelectionOptions
-{
-    public string RequestedProviderName { get; set; } = "";
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
index 1b9eff90d..72c4d0b4e 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
@@ -4,6 +4,6 @@ public interface IProjectionDocumentStoreFactory
 {
     IDocumentProjectionStore<TReadModel, TKey> Create<TReadModel, TKey>(
         IServiceProvider serviceProvider,
-        ProjectionDocumentSelectionOptions selectionOptions)
+        string? requestedProviderName = null)
         where TReadModel : class;
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderRegistry.cs
deleted file mode 100644
index a5ebc861a..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderRegistry.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionDocumentStoreProviderRegistry
-{
-    IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> GetRegistrations<TReadModel, TKey>(
-        IServiceProvider serviceProvider)
-        where TReadModel : class;
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs
deleted file mode 100644
index bfa343c78..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionDocumentStoreProviderSelector
-{
-    IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> Select<TReadModel, TKey>(
-        IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
-        ProjectionDocumentSelectionOptions selectionOptions)
-        where TReadModel : class;
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
index 7310ffd1e..68f38c3d9 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
@@ -5,18 +5,17 @@
 ## 目录结构
 
 - `Abstractions/Core`：Provider 注册契约（`IProjectionStoreRegistration<TStore>`）
-- `Abstractions/Documents`：Document runtime options、selection options、startup validator 契约
-- `Abstractions/ReadModels`：Document store registry/factory/selector、metadata resolver 契约
-- `Abstractions/Graphs`：Graph runtime options、selection options、startup validator、store registry/factory/selector 契约
+- `Abstractions/Documents`：Document runtime options
+- `Abstractions/ReadModels`：Document store factory、metadata resolver、provider names
+- `Abstractions/Graphs`：Graph runtime options、graph store factory 契约
 - `Abstractions/Selection`：Materialization 路由与 graph materializer 契约
 
 ## 关键契约
 
 - Provider 注册：`IProjectionStoreRegistration<TStore>`
-- Document 运行时：`IProjectionDocumentRuntimeOptions`、`ProjectionDocumentSelectionOptions`
-- Graph 运行时：`IProjectionGraphRuntimeOptions`、`ProjectionGraphSelectionOptions`
+- Document 运行时：`ProjectionDocumentRuntimeOptions`
+- Graph 运行时：`ProjectionGraphRuntimeOptions`
 - Store factory：`IProjectionDocumentStoreFactory`、`IProjectionGraphStoreFactory`
-- Startup validation：`IProjectionDocumentStartupValidator`、`IProjectionGraphStartupValidator`
 - Materialization：`IProjectionMaterializationRouter<TReadModel, TKey>`、`IProjectionGraphMaterializer<TReadModel>`
 
 ## 约束
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index 49b135e55..d556dd65f 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -8,17 +8,11 @@ public static class ServiceCollectionExtensions
 {
     public static IServiceCollection AddProjectionReadModelRuntime(this IServiceCollection services)
     {
-        services.TryAddSingleton<IProjectionDocumentStoreProviderRegistry, ProjectionDocumentStoreProviderRegistry>();
-        services.TryAddSingleton<IProjectionDocumentStoreProviderSelector, ProjectionDocumentStoreProviderSelector>();
         services.TryAddSingleton<IProjectionDocumentStoreFactory, ProjectionDocumentStoreFactory>();
-        services.TryAddSingleton<IProjectionGraphStoreProviderRegistry, ProjectionGraphStoreProviderRegistry>();
-        services.TryAddSingleton<IProjectionGraphStoreProviderSelector, ProjectionGraphStoreProviderSelector>();
         services.TryAddSingleton<IProjectionGraphStoreFactory, ProjectionGraphStoreFactory>();
         services.TryAddSingleton(typeof(IProjectionGraphMaterializer<>), typeof(ProjectionGraphMaterializer<>));
         services.TryAddSingleton(typeof(IProjectionMaterializationRouter<,>), typeof(ProjectionMaterializationRouter<,>));
         services.TryAddSingleton<IProjectionDocumentMetadataResolver, ProjectionDocumentMetadataResolver>();
-        services.TryAddSingleton<IProjectionDocumentStartupValidator, ProjectionDocumentStartupValidator>();
-        services.TryAddSingleton<IProjectionGraphStartupValidator, ProjectionGraphStartupValidator>();
         return services;
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/README.md b/src/Aevatar.CQRS.Projection.Runtime/README.md
index 9a388df3b..29c57c22a 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime/README.md
@@ -4,10 +4,8 @@
 
 ## 职责
 
-- Document/Graph Provider 注册查询：`IProjectionDocumentStoreProviderRegistry`、`IProjectionGraphStoreProviderRegistry`
-- Document/Graph Provider 显式选择：`IProjectionDocumentStoreProviderSelector`、`IProjectionGraphStoreProviderSelector`
-- Store 创建与创建日志：`IProjectionDocumentStoreFactory`、`IProjectionGraphStoreFactory`
-- 启动期 fail-fast 校验：`IProjectionDocumentStartupValidator`、`IProjectionGraphStartupValidator`
+- Store 创建与 provider 选择（内聚在 factory）：`IProjectionDocumentStoreFactory`、`IProjectionGraphStoreFactory`
+- Store 创建日志与 fail-fast 错误：`ProjectionProviderSelectionException`
 - Materialization 路由：`IProjectionMaterializationRouter<TReadModel, TKey>`、`ProjectionGraphMaterializer<TReadModel>`
 
 ## DI 入口
@@ -18,4 +16,5 @@
 
 1. 不承载业务 ReadModel 类型。
 2. 不实现能力协商，不依赖 Capabilities/Requirements 模型。
-3. 仅依赖抽象契约与 DI；具体 Provider 由上层注册。
+3. Provider 选择规则：`providerName` 精确匹配；无注册、多注册无明确 provider、provider 不存在都立即失败。
+4. 仅依赖抽象契约与 DI；具体 Provider 由上层注册。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStartupValidator.cs
deleted file mode 100644
index d7e4998c4..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStartupValidator.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionDocumentStartupValidator : IProjectionDocumentStartupValidator
-{
-    private readonly IProjectionDocumentStoreProviderRegistry _providerRegistry;
-    private readonly IProjectionDocumentStoreProviderSelector _providerSelector;
-
-    public ProjectionDocumentStartupValidator(
-        IProjectionDocumentStoreProviderRegistry providerRegistry,
-        IProjectionDocumentStoreProviderSelector providerSelector)
-    {
-        _providerRegistry = providerRegistry;
-        _providerSelector = providerSelector;
-    }
-
-    public IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> ValidateProvider<TReadModel, TKey>(
-        IServiceProvider serviceProvider,
-        ProjectionDocumentSelectionOptions selectionOptions)
-        where TReadModel : class
-    {
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-        ArgumentNullException.ThrowIfNull(selectionOptions);
-
-        var registrations = _providerRegistry.GetRegistrations<TReadModel, TKey>(serviceProvider);
-        return _providerSelector.Select(registrations, selectionOptions);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
index e4e915876..00a68af04 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
@@ -1,3 +1,4 @@
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
 
@@ -6,30 +7,31 @@ namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 public sealed class ProjectionDocumentStoreFactory
     : IProjectionDocumentStoreFactory
 {
-    private readonly IProjectionDocumentStoreProviderRegistry _providerRegistry;
-    private readonly IProjectionDocumentStoreProviderSelector _providerSelector;
     private readonly ILogger<ProjectionDocumentStoreFactory> _logger;
 
     public ProjectionDocumentStoreFactory(
-        IProjectionDocumentStoreProviderRegistry providerRegistry,
-        IProjectionDocumentStoreProviderSelector providerSelector,
         ILogger<ProjectionDocumentStoreFactory>? logger = null)
     {
-        _providerRegistry = providerRegistry;
-        _providerSelector = providerSelector;
         _logger = logger ?? NullLogger<ProjectionDocumentStoreFactory>.Instance;
     }
 
     public IDocumentProjectionStore<TReadModel, TKey> Create<TReadModel, TKey>(
         IServiceProvider serviceProvider,
-        ProjectionDocumentSelectionOptions selectionOptions)
+        string? requestedProviderName = null)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
-        ArgumentNullException.ThrowIfNull(selectionOptions);
 
-        var registrations = _providerRegistry.GetRegistrations<TReadModel, TKey>(serviceProvider);
-        var selected = _providerSelector.Select(registrations, selectionOptions);
+        var registrations = serviceProvider
+            .GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>()
+            .ToList();
+        var selected = ProjectionStoreRegistrationSelector.Select(
+            registrations,
+            requestedProviderName,
+            typeof(TReadModel),
+            noRegistrationsReason: "No document store provider registrations were found.",
+            multipleRegistrationsReason: "Multiple document store providers are registered but no explicit provider was requested.",
+            providerNotRegisteredReason: "Requested document store provider is not registered.");
 
         var startedAt = DateTimeOffset.UtcNow;
         try
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderRegistry.cs
deleted file mode 100644
index 4f21ce069..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderRegistry.cs
+++ /dev/null
@@ -1,16 +0,0 @@
-using Microsoft.Extensions.DependencyInjection;
-
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionDocumentStoreProviderRegistry : IProjectionDocumentStoreProviderRegistry
-{
-    public IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> GetRegistrations<TReadModel, TKey>(
-        IServiceProvider serviceProvider)
-        where TReadModel : class
-    {
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-        return serviceProvider
-            .GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>()
-            .ToList();
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderSelector.cs
deleted file mode 100644
index 67c9bf816..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreProviderSelector.cs
+++ /dev/null
@@ -1,83 +0,0 @@
-using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Logging.Abstractions;
-
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionDocumentStoreProviderSelector
-    : IProjectionDocumentStoreProviderSelector
-{
-    private readonly ILogger<ProjectionDocumentStoreProviderSelector> _logger;
-
-    public ProjectionDocumentStoreProviderSelector(
-        ILogger<ProjectionDocumentStoreProviderSelector>? logger = null)
-    {
-        _logger = logger ?? NullLogger<ProjectionDocumentStoreProviderSelector>.Instance;
-    }
-
-    public IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> Select<TReadModel, TKey>(
-        IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
-        ProjectionDocumentSelectionOptions selectionOptions)
-        where TReadModel : class
-    {
-        ArgumentNullException.ThrowIfNull(registrations);
-        ArgumentNullException.ThrowIfNull(selectionOptions);
-        var selected = SelectRegistration(
-            registrations,
-            selectionOptions,
-            typeof(TReadModel),
-            "No document store provider registrations were found.",
-            "Multiple document store providers are registered but no explicit provider was requested.",
-            "Requested document store provider is not registered.");
-        _logger.LogInformation(
-            "Projection document provider selected. readModel={ReadModel} provider={Provider}",
-            typeof(TReadModel).FullName,
-            selected.ProviderName);
-        return selected;
-    }
-
-    private static IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>> SelectRegistration<TReadModel, TKey>(
-        IReadOnlyList<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
-        ProjectionDocumentSelectionOptions selectionOptions,
-        Type logicalModelType,
-        string noRegistrationsReason,
-        string multipleRegistrationsReason,
-        string providerNotRegisteredReason)
-        where TReadModel : class
-    {
-        var requestedProviderName = selectionOptions.RequestedProviderName?.Trim() ?? "";
-        if (registrations.Count == 0)
-        {
-            throw new ProjectionProviderSelectionException(
-                logicalModelType,
-                requestedProviderName,
-                [],
-                noRegistrationsReason);
-        }
-
-        if (requestedProviderName.Length == 0)
-        {
-            if (registrations.Count == 1)
-                return registrations[0];
-
-            throw new ProjectionProviderSelectionException(
-                logicalModelType,
-                requestedProviderName,
-                registrations.Select(x => x.ProviderName).ToList(),
-                multipleRegistrationsReason);
-        }
-
-        var matched = registrations
-            .FirstOrDefault(x => string.Equals(
-                x.ProviderName,
-                requestedProviderName,
-                StringComparison.OrdinalIgnoreCase));
-        if (matched != null)
-            return matched;
-
-        throw new ProjectionProviderSelectionException(
-            logicalModelType,
-            requestedProviderName,
-            registrations.Select(x => x.ProviderName).ToList(),
-            providerNotRegisteredReason);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStartupValidator.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStartupValidator.cs
deleted file mode 100644
index 81f525ffa..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStartupValidator.cs
+++ /dev/null
@@ -1,26 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionGraphStartupValidator : IProjectionGraphStartupValidator
-{
-    private readonly IProjectionGraphStoreProviderRegistry _providerRegistry;
-    private readonly IProjectionGraphStoreProviderSelector _providerSelector;
-
-    public ProjectionGraphStartupValidator(
-        IProjectionGraphStoreProviderRegistry providerRegistry,
-        IProjectionGraphStoreProviderSelector providerSelector)
-    {
-        _providerRegistry = providerRegistry;
-        _providerSelector = providerSelector;
-    }
-
-    public IProjectionStoreRegistration<IProjectionGraphStore> ValidateProvider(
-        IServiceProvider serviceProvider,
-        ProjectionGraphSelectionOptions selectionOptions)
-    {
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-        ArgumentNullException.ThrowIfNull(selectionOptions);
-
-        var registrations = _providerRegistry.GetRegistrations(serviceProvider);
-        return _providerSelector.Select(registrations, selectionOptions);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
index a0ab8d2c5..855ac6481 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
@@ -1,3 +1,4 @@
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
 
@@ -5,29 +6,30 @@ namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
 public sealed class ProjectionGraphStoreFactory : IProjectionGraphStoreFactory
 {
-    private readonly IProjectionGraphStoreProviderRegistry _providerRegistry;
-    private readonly IProjectionGraphStoreProviderSelector _providerSelector;
     private readonly ILogger<ProjectionGraphStoreFactory> _logger;
 
     public ProjectionGraphStoreFactory(
-        IProjectionGraphStoreProviderRegistry providerRegistry,
-        IProjectionGraphStoreProviderSelector providerSelector,
         ILogger<ProjectionGraphStoreFactory>? logger = null)
     {
-        _providerRegistry = providerRegistry;
-        _providerSelector = providerSelector;
         _logger = logger ?? NullLogger<ProjectionGraphStoreFactory>.Instance;
     }
 
     public IProjectionGraphStore Create(
         IServiceProvider serviceProvider,
-        ProjectionGraphSelectionOptions selectionOptions)
+        string? requestedProviderName = null)
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
-        ArgumentNullException.ThrowIfNull(selectionOptions);
 
-        var registrations = _providerRegistry.GetRegistrations(serviceProvider);
-        var selected = _providerSelector.Select(registrations, selectionOptions);
+        var registrations = serviceProvider
+            .GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>()
+            .ToList();
+        var selected = ProjectionStoreRegistrationSelector.Select(
+            registrations,
+            requestedProviderName,
+            typeof(ProjectionGraphNode),
+            noRegistrationsReason: "No relation store provider registrations were found.",
+            multipleRegistrationsReason: "Multiple relation store providers are registered but no explicit provider was requested.",
+            providerNotRegisteredReason: "Requested relation store provider is not registered.");
 
         var startedAt = DateTimeOffset.UtcNow;
         try
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderRegistry.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderRegistry.cs
deleted file mode 100644
index 848439bd5..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderRegistry.cs
+++ /dev/null
@@ -1,14 +0,0 @@
-using Microsoft.Extensions.DependencyInjection;
-
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionGraphStoreProviderRegistry : IProjectionGraphStoreProviderRegistry
-{
-    public IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> GetRegistrations(IServiceProvider serviceProvider)
-    {
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-        return serviceProvider
-            .GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>()
-            .ToList();
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderSelector.cs
deleted file mode 100644
index 2e13e697c..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreProviderSelector.cs
+++ /dev/null
@@ -1,83 +0,0 @@
-using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Logging.Abstractions;
-
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionGraphStoreProviderSelector
-    : IProjectionGraphStoreProviderSelector
-{
-    private readonly ILogger<ProjectionGraphStoreProviderSelector> _logger;
-
-    public ProjectionGraphStoreProviderSelector(
-        ILogger<ProjectionGraphStoreProviderSelector>? logger = null)
-    {
-        _logger = logger ?? NullLogger<ProjectionGraphStoreProviderSelector>.Instance;
-    }
-
-    public IProjectionStoreRegistration<IProjectionGraphStore> Select(
-        IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> registrations,
-        ProjectionGraphSelectionOptions selectionOptions)
-    {
-        ArgumentNullException.ThrowIfNull(registrations);
-        ArgumentNullException.ThrowIfNull(selectionOptions);
-
-        var selected = SelectRegistration(
-            registrations,
-            selectionOptions,
-            typeof(ProjectionGraphNode),
-            noRegistrationsReason: "No relation store provider registrations were found.",
-            multipleRegistrationsReason: "Multiple relation store providers are registered but no explicit provider was requested.",
-            providerNotRegisteredReason: "Requested relation store provider is not registered.");
-
-        _logger.LogInformation(
-            "Projection relation provider selected. provider={Provider}",
-            selected.ProviderName);
-
-        return selected;
-    }
-
-    private static IProjectionStoreRegistration<IProjectionGraphStore> SelectRegistration(
-        IReadOnlyList<IProjectionStoreRegistration<IProjectionGraphStore>> registrations,
-        ProjectionGraphSelectionOptions selectionOptions,
-        Type logicalModelType,
-        string noRegistrationsReason,
-        string multipleRegistrationsReason,
-        string providerNotRegisteredReason)
-    {
-        var requestedProviderName = selectionOptions.RequestedProviderName?.Trim() ?? "";
-        if (registrations.Count == 0)
-        {
-            throw new ProjectionProviderSelectionException(
-                logicalModelType,
-                requestedProviderName,
-                [],
-                noRegistrationsReason);
-        }
-
-        if (requestedProviderName.Length == 0)
-        {
-            if (registrations.Count == 1)
-                return registrations[0];
-
-            throw new ProjectionProviderSelectionException(
-                logicalModelType,
-                requestedProviderName,
-                registrations.Select(x => x.ProviderName).ToList(),
-                multipleRegistrationsReason);
-        }
-
-        var matched = registrations
-            .FirstOrDefault(x => string.Equals(
-                x.ProviderName,
-                requestedProviderName,
-                StringComparison.OrdinalIgnoreCase));
-        if (matched != null)
-            return matched;
-
-        throw new ProjectionProviderSelectionException(
-            logicalModelType,
-            requestedProviderName,
-            registrations.Select(x => x.ProviderName).ToList(),
-            providerNotRegisteredReason);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreRegistrationSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreRegistrationSelector.cs
new file mode 100644
index 000000000..e765e127e
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreRegistrationSelector.cs
@@ -0,0 +1,52 @@
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+internal static class ProjectionStoreRegistrationSelector
+{
+    public static IProjectionStoreRegistration<TStore> Select<TStore>(
+        IReadOnlyList<IProjectionStoreRegistration<TStore>> registrations,
+        string? requestedProviderName,
+        Type logicalModelType,
+        string noRegistrationsReason,
+        string multipleRegistrationsReason,
+        string providerNotRegisteredReason)
+    {
+        ArgumentNullException.ThrowIfNull(registrations);
+        ArgumentNullException.ThrowIfNull(logicalModelType);
+
+        var requestedName = requestedProviderName?.Trim() ?? "";
+        if (registrations.Count == 0)
+        {
+            throw new ProjectionProviderSelectionException(
+                logicalModelType,
+                requestedName,
+                [],
+                noRegistrationsReason);
+        }
+
+        if (requestedName.Length == 0)
+        {
+            if (registrations.Count == 1)
+                return registrations[0];
+
+            throw new ProjectionProviderSelectionException(
+                logicalModelType,
+                requestedName,
+                registrations.Select(x => x.ProviderName).ToList(),
+                multipleRegistrationsReason);
+        }
+
+        var matched = registrations
+            .FirstOrDefault(x => string.Equals(
+                x.ProviderName,
+                requestedName,
+                StringComparison.OrdinalIgnoreCase));
+        if (matched != null)
+            return matched;
+
+        throw new ProjectionProviderSelectionException(
+            logicalModelType,
+            requestedName,
+            registrations.Select(x => x.ProviderName).ToList(),
+            providerNotRegisteredReason);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs
index 311541a99..093084136 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs
@@ -1,6 +1,3 @@
 namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
-public interface IDocumentReadModel : IProjectionReadModel
-{
-    string DocumentScope { get; }
-}
+public interface IDocumentReadModel : IProjectionReadModel;
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
index 469d450de..c0e66fb06 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
@@ -11,7 +11,7 @@
 
 - 读模型存储：`IDocumentProjectionStore<,>`
 - 图存储：`IProjectionGraphStore`
-- ReadModel 能力模型：`IProjectionReadModel`、`IDocumentReadModel`、`IGraphReadModel`
+- ReadModel 能力模型：`IProjectionReadModel`、`IDocumentReadModel`（marker）、`IGraphReadModel`
 - 文档索引元数据声明：`DocumentIndexMetadata`、`IProjectionDocumentMetadataProvider<TReadModel>`
 - 图结构描述：`GraphNodeDescriptor`、`GraphEdgeDescriptor`
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index df20672fc..d8610d2f9 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -38,11 +38,7 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.TryAddSingleton<IProjectionRuntimeOptions>(sp =>
             sp.GetRequiredService<WorkflowExecutionProjectionOptions>());
         services.TryAddSingleton<ProjectionDocumentRuntimeOptions>();
-        services.TryAddSingleton<IProjectionDocumentRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionDocumentRuntimeOptions>());
         services.TryAddSingleton<ProjectionGraphRuntimeOptions>();
-        services.TryAddSingleton<IProjectionGraphRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionGraphRuntimeOptions>());
         services.TryAddSingleton<IEventDeduplicator, PassthroughEventDeduplicator>();
         services.AddProjectionReadModelRuntime();
         services.TryAddSingleton<IProjectionDocumentMetadataProvider<WorkflowExecutionReport>, WorkflowExecutionReportDocumentMetadataProvider>();
@@ -131,11 +127,10 @@ private static void RegisterWorkflowDocumentStoreSelector(IServiceCollection ser
         services.Replace(ServiceDescriptor.Singleton<IDocumentProjectionStore<WorkflowExecutionReport, string>>(sp =>
         {
             var storeFactory = sp.GetRequiredService<IProjectionDocumentStoreFactory>();
-            var selectionOptions = BuildDocumentSelectionOptions(sp);
-
+            var runtimeOptions = sp.GetRequiredService<ProjectionDocumentRuntimeOptions>();
             return storeFactory.Create<WorkflowExecutionReport, string>(
                 sp,
-                selectionOptions);
+                runtimeOptions.ProviderName);
         }));
     }
 
@@ -144,11 +139,10 @@ private static void RegisterWorkflowGraphStoreSelector(IServiceCollection servic
         services.Replace(ServiceDescriptor.Singleton<IProjectionGraphStore>(sp =>
         {
             var graphStoreFactory = sp.GetRequiredService<IProjectionGraphStoreFactory>();
-            var selectionOptions = BuildGraphSelectionOptions(sp);
-
+            var runtimeOptions = sp.GetRequiredService<ProjectionGraphRuntimeOptions>();
             return graphStoreFactory.Create(
                 sp,
-                selectionOptions);
+                runtimeOptions.ProviderName);
         }));
     }
 
@@ -160,24 +154,6 @@ private static void RegisterWorkflowMaterializationRouter(IServiceCollection ser
                 sp.GetRequiredService<IProjectionGraphMaterializer<WorkflowExecutionReport>>())));
     }
 
-    private static ProjectionDocumentSelectionOptions BuildDocumentSelectionOptions(IServiceProvider serviceProvider)
-    {
-        var runtimeOptions = serviceProvider.GetRequiredService<IProjectionDocumentRuntimeOptions>();
-        return new ProjectionDocumentSelectionOptions
-        {
-            RequestedProviderName = runtimeOptions.ProviderName,
-        };
-    }
-
-    private static ProjectionGraphSelectionOptions BuildGraphSelectionOptions(IServiceProvider serviceProvider)
-    {
-        var runtimeOptions = serviceProvider.GetRequiredService<IProjectionGraphRuntimeOptions>();
-        return new ProjectionGraphSelectionOptions
-        {
-            RequestedProviderName = runtimeOptions.ProviderName,
-        };
-    }
-
     private sealed class PassthroughEventDeduplicator : IEventDeduplicator
     {
         public Task<bool> TryRecordAsync(string eventId)
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index 270a5beef..305f09d50 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -11,27 +11,27 @@ internal sealed class WorkflowReadModelStartupValidationHostedService : IHostedS
 {
     private readonly IServiceProvider _serviceProvider;
     private readonly WorkflowExecutionProjectionOptions _options;
-    private readonly IProjectionDocumentRuntimeOptions _documentRuntimeOptions;
-    private readonly IProjectionGraphRuntimeOptions _graphRuntimeOptions;
-    private readonly IProjectionDocumentStartupValidator _documentStartupValidator;
-    private readonly IProjectionGraphStartupValidator _graphStartupValidator;
+    private readonly ProjectionDocumentRuntimeOptions _documentRuntimeOptions;
+    private readonly ProjectionGraphRuntimeOptions _graphRuntimeOptions;
+    private readonly IProjectionDocumentStoreFactory _documentStoreFactory;
+    private readonly IProjectionGraphStoreFactory _graphStoreFactory;
     private readonly ILogger<WorkflowReadModelStartupValidationHostedService> _logger;
 
     public WorkflowReadModelStartupValidationHostedService(
         IServiceProvider serviceProvider,
         WorkflowExecutionProjectionOptions options,
-        IProjectionDocumentRuntimeOptions documentRuntimeOptions,
-        IProjectionGraphRuntimeOptions graphRuntimeOptions,
-        IProjectionDocumentStartupValidator documentStartupValidator,
-        IProjectionGraphStartupValidator graphStartupValidator,
+        ProjectionDocumentRuntimeOptions documentRuntimeOptions,
+        ProjectionGraphRuntimeOptions graphRuntimeOptions,
+        IProjectionDocumentStoreFactory documentStoreFactory,
+        IProjectionGraphStoreFactory graphStoreFactory,
         ILogger<WorkflowReadModelStartupValidationHostedService>? logger = null)
     {
         _serviceProvider = serviceProvider;
         _options = options;
         _documentRuntimeOptions = documentRuntimeOptions;
         _graphRuntimeOptions = graphRuntimeOptions;
-        _documentStartupValidator = documentStartupValidator;
-        _graphStartupValidator = graphStartupValidator;
+        _documentStoreFactory = documentStoreFactory;
+        _graphStoreFactory = graphStoreFactory;
         _logger = logger ?? NullLogger<WorkflowReadModelStartupValidationHostedService>.Instance;
     }
 
@@ -43,30 +43,24 @@ public Task StartAsync(CancellationToken cancellationToken)
 
         if (_options.ValidateDocumentProviderOnStartup && _documentRuntimeOptions.FailFastOnStartup)
         {
-            var selectedDocumentProvider = _documentStartupValidator.ValidateProvider<WorkflowExecutionReport, string>(
+            _documentStoreFactory.Create<WorkflowExecutionReport, string>(
                 _serviceProvider,
-                new ProjectionDocumentSelectionOptions
-                {
-                    RequestedProviderName = _documentRuntimeOptions.ProviderName,
-                });
+                _documentRuntimeOptions.ProviderName);
             _logger.LogInformation(
                 "Workflow read-model provider startup validation passed. readModelType={ReadModelType} provider={Provider}",
                 typeof(WorkflowExecutionReport).FullName,
-                selectedDocumentProvider.ProviderName);
+                _documentRuntimeOptions.ProviderName);
         }
 
         if (_options.ValidateGraphProviderOnStartup && _graphRuntimeOptions.FailFastOnStartup)
         {
-            var selectedGraphProvider = _graphStartupValidator.ValidateProvider(
+            _graphStoreFactory.Create(
                 _serviceProvider,
-                new ProjectionGraphSelectionOptions
-                {
-                    RequestedProviderName = _graphRuntimeOptions.ProviderName,
-                });
+                _graphRuntimeOptions.ProviderName);
             _logger.LogInformation(
                 "Workflow graph provider startup validation passed. graphType={GraphType} provider={Provider}",
                 typeof(ProjectionGraphNode).FullName,
-                selectedGraphProvider.ProviderName);
+                _graphRuntimeOptions.ProviderName);
         }
         return Task.CompletedTask;
     }
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index 1d225c1df..32b11e1bf 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -24,7 +24,7 @@
 - 领域投影实现：reducers、projectors、read model（不包含 Provider Store 实现）
 - 领域 DI 组合：`AddWorkflowExecutionProjectionCQRS(...)`
 - Provider 启动校验：由 `WorkflowReadModelStartupValidationHostedService` 执行 Document/Graph 两条独立 fail-fast 校验
-- ReadModel 选择规则：DI store 解析与 Startup validation 统一复用 Document/Graph runtime options（`IProjectionDocumentRuntimeOptions`、`IProjectionGraphRuntimeOptions`）
+- ReadModel 选择规则：DI store 解析与 Startup validation 统一复用 Document/Graph runtime options（`ProjectionDocumentRuntimeOptions`、`ProjectionGraphRuntimeOptions`）
 
 本项目依赖：
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
index 35c97bc30..d3c5fca21 100644
--- a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
@@ -38,8 +38,6 @@ public sealed class WorkflowExecutionReport
 {
     private const string UnknownToken = "unknown";
 
-    public string DocumentScope => "workflow-execution-reports";
-
     public string GraphScope => WorkflowExecutionGraphConstants.Scope;
 
     public IReadOnlyList<GraphNodeDescriptor> GraphNodes => BuildGraphNodes();
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index a7c7c39e0..37ab284fd 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -40,11 +40,7 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
         };
 
         services.Replace(ServiceDescriptor.Singleton(documentRuntimeOptions));
-        services.Replace(ServiceDescriptor.Singleton<IProjectionDocumentRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionDocumentRuntimeOptions>()));
         services.Replace(ServiceDescriptor.Singleton(graphRuntimeOptions));
-        services.Replace(ServiceDescriptor.Singleton<IProjectionGraphRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionGraphRuntimeOptions>()));
 
         RegisterDocumentProvider(services, configuration, providerSelection.DocumentProvider);
         RegisterGraphProvider(services, configuration, providerSelection.GraphProvider);
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
index eddbf9322..4fb8477be 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
@@ -1,63 +1,68 @@
 using Aevatar.CQRS.Projection.Runtime.Runtime;
 using FluentAssertions;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace Aevatar.CQRS.Projection.Core.Tests;
 
 public class ProjectionReadModelRuntimeTests
 {
     [Fact]
-    public void DocumentProviderSelector_WhenRequestedProviderMatched_ShouldReturnRegistration()
+    public void DocumentStoreFactory_WhenRequestedProviderMatched_ShouldCreateRequestedProviderStore()
     {
-        var selector = new ProjectionDocumentStoreProviderSelector();
-        var registrations = new List<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>
-        {
-            CreateRegistration("InMemory"),
-            CreateRegistration("Elasticsearch"),
-        };
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+                "InMemory",
+                _ => new NamedDocumentStore("InMemory")));
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+                "Elasticsearch",
+                _ => new NamedDocumentStore("Elasticsearch")));
 
-        var selected = selector.Select(
-            registrations,
-            new ProjectionDocumentSelectionOptions
-            {
-                RequestedProviderName = "inmemory",
-            });
+        using var serviceProvider = services.BuildServiceProvider();
+        var factory = new ProjectionDocumentStoreFactory();
 
-        selected.ProviderName.Should().Be("InMemory");
+        var selected = factory.Create<TestReadModel, string>(serviceProvider, "inmemory");
+        var typed = selected.Should().BeOfType<NamedDocumentStore>().Subject;
+        typed.ProviderName.Should().Be("InMemory");
     }
 
     [Fact]
-    public void DocumentProviderSelector_WhenMultipleProvidersWithoutRequested_ShouldThrowStructuredException()
+    public void DocumentStoreFactory_WhenMultipleProvidersWithoutRequested_ShouldThrowStructuredException()
     {
-        var selector = new ProjectionDocumentStoreProviderSelector();
-        var registrations = new List<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>
-        {
-            CreateRegistration("InMemory"),
-            CreateRegistration("Elasticsearch"),
-        };
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+                "InMemory",
+                _ => new NamedDocumentStore("InMemory")));
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+                "Elasticsearch",
+                _ => new NamedDocumentStore("Elasticsearch")));
+
+        using var serviceProvider = services.BuildServiceProvider();
+        var factory = new ProjectionDocumentStoreFactory();
 
-        Action act = () => selector.Select(
-            registrations,
-            new ProjectionDocumentSelectionOptions());
+        Action act = () => factory.Create<TestReadModel, string>(serviceProvider);
 
         act.Should().Throw<ProjectionProviderSelectionException>()
             .Where(ex => ex.ReadModelType == typeof(TestReadModel));
     }
 
-    private static IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>> CreateRegistration(
-        string providerName)
-    {
-        return new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-            providerName,
-            _ => new NoopStore());
-    }
-
     public sealed class TestReadModel
     {
         public string Id { get; set; } = "";
     }
 
-    private sealed class NoopStore : IDocumentProjectionStore<TestReadModel, string>
+    private sealed class NamedDocumentStore : IDocumentProjectionStore<TestReadModel, string>
     {
+        public NamedDocumentStore(string providerName)
+        {
+            ProviderName = providerName;
+        }
+
+        public string ProviderName { get; }
+
         public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default)
         {
             _ = readModel;
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
index 0e3d5b7e9..91958c6ba 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
@@ -1,110 +1,72 @@
 using Aevatar.CQRS.Projection.Runtime.Runtime;
 using FluentAssertions;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace Aevatar.CQRS.Projection.Core.Tests;
 
 public class ProjectionReadModelStoreSelectorTests
 {
     [Fact]
-    public void DocumentSelector_WhenSingleProviderRegistered_ShouldReturnSingleProvider()
+    public void GraphStoreFactory_WhenRequestedProviderMatched_ShouldCreateRequestedProviderStore()
     {
-        var selector = new ProjectionDocumentStoreProviderSelector();
-        var registrations = new[]
-        {
-            CreateDocumentRegistration("inmemory"),
-        };
-
-        var selected = selector.Select(
-            registrations,
-            new ProjectionDocumentSelectionOptions());
-
-        selected.ProviderName.Should().Be("inmemory");
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
+                "inmemory",
+                _ => new NamedGraphStore("inmemory")));
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
+                "neo4j",
+                _ => new NamedGraphStore("neo4j")));
+
+        using var serviceProvider = services.BuildServiceProvider();
+        var factory = new ProjectionGraphStoreFactory();
+
+        var selected = factory.Create(serviceProvider, "Neo4J");
+        var typed = selected.Should().BeOfType<NamedGraphStore>().Subject;
+        typed.ProviderName.Should().Be("neo4j");
     }
 
     [Fact]
-    public void DocumentSelector_WhenRequestedProviderMissing_ShouldThrow()
+    public void GraphStoreFactory_WhenRequestedProviderMissing_ShouldThrow()
     {
-        var selector = new ProjectionDocumentStoreProviderSelector();
-        var registrations = new[]
-        {
-            CreateDocumentRegistration("inmemory"),
-        };
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
+                "inmemory",
+                _ => new NamedGraphStore("inmemory")));
+
+        using var serviceProvider = services.BuildServiceProvider();
+        var factory = new ProjectionGraphStoreFactory();
 
-        Action act = () => selector.Select(
-            registrations,
-            new ProjectionDocumentSelectionOptions
-            {
-                RequestedProviderName = "elasticsearch",
-            });
+        Action act = () => factory.Create(serviceProvider, "elasticsearch");
 
         act.Should().Throw<ProjectionProviderSelectionException>()
-            .Where(ex => ex.Reason.Contains("Requested document store provider is not registered", StringComparison.Ordinal));
+            .Where(ex => ex.Reason.Contains("Requested relation store provider is not registered", StringComparison.Ordinal));
     }
 
     [Fact]
-    public void GraphSelector_WhenRequestedProviderMatched_ShouldReturnProvider()
+    public void GraphStoreFactory_WhenNoProviderRegistered_ShouldThrow()
     {
-        var selector = new ProjectionGraphStoreProviderSelector();
-        var registrations = new[]
-        {
-            CreateGraphRegistration("inmemory"),
-            CreateGraphRegistration("neo4j"),
-        };
-
-        var selected = selector.Select(
-            registrations,
-            new ProjectionGraphSelectionOptions
-            {
-                RequestedProviderName = "Neo4J",
-            });
-
-        selected.ProviderName.Should().Be("neo4j");
-    }
+        var services = new ServiceCollection();
+        using var serviceProvider = services.BuildServiceProvider();
+        var factory = new ProjectionGraphStoreFactory();
 
-    [Fact]
-    public void GraphSelector_WhenNoProviderRegistered_ShouldThrow()
-    {
-        var selector = new ProjectionGraphStoreProviderSelector();
-        Action act = () => selector.Select(
-            [],
-            new ProjectionGraphSelectionOptions
-            {
-                RequestedProviderName = ProjectionProviderNames.InMemory,
-            });
+        Action act = () => factory.Create(serviceProvider, ProjectionProviderNames.InMemory);
 
         act.Should().Throw<ProjectionProviderSelectionException>()
             .Where(ex => ex.Reason.Contains("No relation store provider registrations", StringComparison.Ordinal));
     }
 
-    private static IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>> CreateDocumentRegistration(
-        string providerName)
+    private sealed class NamedGraphStore : IProjectionGraphStore
     {
-        return new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-            providerName,
-            _ => new NoopDocumentStore());
-    }
-
-    private static IProjectionStoreRegistration<IProjectionGraphStore> CreateGraphRegistration(string providerName)
-    {
-        return new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-            providerName,
-            _ => new NoopGraphStore());
-    }
-
-    private sealed class NoopDocumentStore : IDocumentProjectionStore<TestReadModel, string>
-    {
-        public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default) => Task.CompletedTask;
-
-        public Task MutateAsync(string key, Action<TestReadModel> mutate, CancellationToken ct = default) => Task.CompletedTask;
-
-        public Task<TestReadModel?> GetAsync(string key, CancellationToken ct = default) => Task.FromResult<TestReadModel?>(null);
+        public NamedGraphStore(string providerName)
+        {
+            ProviderName = providerName;
+        }
 
-        public Task<IReadOnlyList<TestReadModel>> ListAsync(int take = 50, CancellationToken ct = default) =>
-            Task.FromResult<IReadOnlyList<TestReadModel>>([]);
-    }
+        public string ProviderName { get; }
 
-    private sealed class NoopGraphStore : IProjectionGraphStore
-    {
         public Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default) => Task.CompletedTask;
 
         public Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default) => Task.CompletedTask;
@@ -117,6 +79,4 @@ public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(ProjectionGrap
         public Task<ProjectionGraphSubgraph> GetSubgraphAsync(ProjectionGraphQuery query, CancellationToken ct = default) =>
             Task.FromResult(new ProjectionGraphSubgraph());
     }
-
-    private sealed class TestReadModel;
 }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index ef8d3e5be..6623f931c 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -135,11 +135,7 @@ private static void ConfigureStoreSelectionOptions(
         };
 
         services.Replace(ServiceDescriptor.Singleton(documentOptions));
-        services.Replace(ServiceDescriptor.Singleton<IProjectionDocumentRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionDocumentRuntimeOptions>()));
         services.Replace(ServiceDescriptor.Singleton(graphOptions));
-        services.Replace(ServiceDescriptor.Singleton<IProjectionGraphRuntimeOptions>(sp =>
-            sp.GetRequiredService<ProjectionGraphRuntimeOptions>()));
     }
 
     private static async Task StartHostedServicesAsync(IServiceProvider provider)
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index 256d857f0..df33037ac 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -118,10 +118,10 @@ public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_S
             .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionGraphStore>))
             .ToList();
         var documentRuntimeOptionRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionDocumentRuntimeOptions))
+            .Where(x => x.ServiceType == typeof(ProjectionDocumentRuntimeOptions))
             .ToList();
         var graphRuntimeOptionRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionGraphRuntimeOptions))
+            .Where(x => x.ServiceType == typeof(ProjectionGraphRuntimeOptions))
             .ToList();
 
         providerRegistrations.Should().HaveCount(1);
@@ -130,8 +130,8 @@ public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_S
         graphRuntimeOptionRegistrations.Should().HaveCount(1);
 
         using var provider = services.BuildServiceProvider();
-        var documentOptions = provider.GetRequiredService<IProjectionDocumentRuntimeOptions>();
-        var graphOptions = provider.GetRequiredService<IProjectionGraphRuntimeOptions>();
+        var documentOptions = provider.GetRequiredService<ProjectionDocumentRuntimeOptions>();
+        var graphOptions = provider.GetRequiredService<ProjectionGraphRuntimeOptions>();
         documentOptions.ProviderName.Should().Be(ProjectionProviderNames.Elasticsearch);
         graphOptions.ProviderName.Should().Be(ProjectionProviderNames.InMemory);
     }

From 651a1b1616f8a4c3d0585801546727e8234840d2 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 00:59:55 +0800
Subject: [PATCH 32/46] Refactor Neo4j Provider and Update Projection ReadModel
 Documentation

- Updated the Neo4j provider to focus solely on graph capabilities, removing document-related functionalities and associated configurations.
- Deleted deprecated classes and methods related to document handling in the Neo4j provider, streamlining the codebase.
- Enhanced the documentation for the Projection ReadModel to reflect the latest architectural changes, including the removal of the document provider from Neo4j and clarifications on provider selection.
- Improved error handling in the provider selection logic to prevent misconfigurations involving Neo4j as a document provider.
- Updated tests to ensure compliance with the new provider architecture and validate the changes made to the Neo4j integration.
---
 ...readmodel-full-refactor-plan-2026-02-24.md | 219 ++++++------
 .../Neo4jProjectionReadModelStoreOptions.cs   |  20 --
 .../ServiceCollectionExtensions.cs            |  27 --
 .../README.md                                 |  13 +-
 .../Stores/Neo4jProjectionReadModelStore.cs   | 311 ------------------
 .../Aevatar.Workflow.Projection/README.md     |   3 +-
 ...tionProviderServiceCollectionExtensions.cs |  55 ++--
 .../ProjectionProviderE2EIntegrationTests.cs  |  48 ---
 .../WorkflowHostingExtensionsCoverageTests.cs |  18 +
 tools/ci/architecture_guards.sh               |   1 -
 10 files changed, 163 insertions(+), 552 deletions(-)
 delete mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionReadModelStoreOptions.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs

diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
index 312d05694..ddc1abc39 100644
--- a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
+++ b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
@@ -1,166 +1,157 @@
-# Projection ReadModel 全量重构实施文档（v10，无兼容，极简抽象）
+# Projection ReadModel 全量重构实施文档（v12，已完成，无兼容）
 
 > 日期：2026-02-24  
-> 范围：`Aevatar.CQRS.Projection.Stores.Abstractions`、`Aevatar.CQRS.Projection.Core.Abstractions`、`Aevatar.CQRS.Projection.Runtime.Abstractions`、`Aevatar.CQRS.Projection.Runtime`、`Aevatar.Workflow.Projection`
+> 范围：`Aevatar.CQRS.Projection.Stores.Abstractions`、`Aevatar.CQRS.Projection.Core.Abstractions`、`Aevatar.CQRS.Projection.Runtime.Abstractions`、`Aevatar.CQRS.Projection.Runtime`、`Aevatar.Workflow.Projection`、`Aevatar.Workflow.Extensions.Hosting`、`Aevatar.CQRS.Projection.Providers.*`
 
-## 1. 结论先行
+## 1. 最终结论
 
-核心关系定义：`ReadModel -> ProjectionTarget` 是标准 `1:N`。
+Workflow Projection 已彻底收敛为单链路 `1:N` 扇出模型，并固定生产职责分工：
 
-当前固定实现 `N=2`：
+1. `Document Target = Elasticsearch`（索引、检索、快照/列表查询）
+2. `Graph Target = Neo4j`（关系、邻居、子图遍历）
 
-1. `DocumentTarget`（`IDocumentProjectionStore<,>`）
-2. `GraphTarget`（`IProjectionGraphStore`）
+同一 `ReadModel`（`WorkflowExecutionReport`）在一次投影中并行写入 `Document + Graph`，不是二选一。
 
-本版最终架构（已落地）：
+## 2. 最终架构图
 
-1. 不保留能力模型（Capabilities/Requirements/Validator）。
-2. 不保留运行时薄封装层（Provider Registry / Provider Selector / Startup Validator）。
-3. Provider 选择逻辑内聚到两个 Factory：
-   - `ProjectionDocumentStoreFactory`
-   - `ProjectionGraphStoreFactory`
-4. Startup fail-fast 直接通过 Factory 触发真实 store 创建校验，不再多一层 validator。
-5. Document metadata 继续保留，且由 `IProjectionDocumentMetadataProvider<TReadModel>`（ReadModel 泛型）提供。
-6. `IDocumentReadModel` 收敛为 marker，删除无效 `DocumentScope` 字段。
-
-## 2. 当前架构（v10）
-
-### 2.1 运行主链路
+### 2.1 写入链路（单链路双写）
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart LR
-    EVT["Event Stream"] --> RED["Reducer/Projector"]
-    RED --> RM["ReadModel(T)"]
-    RM --> ROUTER["IProjectionMaterializationRouter<T,TKey>"]
+    A["Event Stream"] --> B["Reducer / Projector"]
+    B --> C["ReadModel(T)"]
+    C --> D["IProjectionMaterializationRouter<T,TKey>"]
+
+    D --> E["T : IDocumentReadModel ?"]
+    D --> F["T : IGraphReadModel ?"]
 
-    ROUTER --> DOC_GATE["if T : IDocumentReadModel"]
-    ROUTER --> GRA_GATE["if T : IGraphReadModel"]
+    E --> G["IDocumentProjectionStore<T,TKey>"]
+    F --> H["IProjectionGraphMaterializer<T>"]
+    H --> I["IProjectionGraphStore"]
 
-    DOC_GATE --> DOC_STORE["IDocumentProjectionStore<T,TKey>"]
-    GRA_GATE --> GRA_MAT["IProjectionGraphMaterializer<T>"]
-    GRA_MAT --> GRA_STORE["IProjectionGraphStore"]
+    G --> J["Elasticsearch"]
+    I --> K["Neo4j"]
 ```
 
-### 2.2 Provider 选择与启动校验（极简）
+### 2.2 查询链路（索引与遍历并存）
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart TB
-    CFG_DOC["ProjectionDocumentRuntimeOptions.ProviderName"] --> DOC_FACTORY["ProjectionDocumentStoreFactory"]
-    CFG_GRA["ProjectionGraphRuntimeOptions.ProviderName"] --> GRA_FACTORY["ProjectionGraphStoreFactory"]
+    A["Query API / Application Service"] --> B["WorkflowExecutionProjectionQueryService"]
 
-    REG_DOC["IProjectionStoreRegistration<IDocumentProjectionStore<,>>[]"] --> DOC_FACTORY
-    REG_GRA["IProjectionStoreRegistration<IProjectionGraphStore>[]"] --> GRA_FACTORY
+    B --> C["Document Query"]
+    B --> D["Graph Query"]
 
-    DOC_FACTORY --> DOC_CREATED["Create Document Store"]
-    GRA_FACTORY --> GRA_CREATED["Create Graph Store"]
+    C --> E["IDocumentProjectionStore"]
+    D --> F["IProjectionGraphStore"]
 
-    STARTUP["WorkflowReadModelStartupValidationHostedService"] --> DOC_FACTORY
-    STARTUP --> GRA_FACTORY
+    E --> G["Elasticsearch"]
+    F --> H["Neo4j"]
 ```
 
-选择规则（统一）：
+### 2.3 Provider 选择与启动校验（极简）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart TB
+    A["ProjectionDocumentRuntimeOptions.ProviderName"] --> C["ProjectionDocumentStoreFactory"]
+    B["ProjectionGraphRuntimeOptions.ProviderName"] --> D["ProjectionGraphStoreFactory"]
 
-1. 没有注册 provider -> 失败。
-2. 有多个注册但未指定 providerName -> 失败。
-3. 指定 providerName 但未命中 -> 失败。
-4. 命中后创建失败 -> 失败。
+    E["IProjectionStoreRegistration<IDocumentProjectionStore<,>>[]"] --> C
+    F["IProjectionStoreRegistration<IProjectionGraphStore>[]"] --> D
 
-## 3. 冗余删除清单（第二轮彻底去层）
+    C --> G["Create Document Store or Fail"]
+    D --> H["Create Graph Store or Fail"]
 
-### 3.1 Runtime.Abstractions 删除
+    I["WorkflowReadModelStartupValidationHostedService"] --> C
+    I --> D
+```
 
-1. `Abstractions/Documents/IProjectionDocumentRuntimeOptions.cs`
-2. `Abstractions/Documents/IProjectionDocumentStartupValidator.cs`
-3. `Abstractions/Documents/ProjectionDocumentSelectionOptions.cs`
-4. `Abstractions/Graphs/IProjectionGraphRuntimeOptions.cs`
-5. `Abstractions/Graphs/IProjectionGraphStartupValidator.cs`
-6. `Abstractions/Graphs/IProjectionGraphStoreProviderRegistry.cs`
-7. `Abstractions/Graphs/IProjectionGraphStoreProviderSelector.cs`
-8. `Abstractions/Graphs/ProjectionGraphSelectionOptions.cs`
-9. `Abstractions/ReadModels/IProjectionDocumentStoreProviderRegistry.cs`
-10. `Abstractions/ReadModels/IProjectionDocumentStoreProviderSelector.cs`
+## 3. 已完成的彻底重构项
 
-### 3.2 Runtime 删除
+### 3.1 Runtime 抽象与实现去层
 
-1. `Runtime/ProjectionDocumentStoreProviderRegistry.cs`
-2. `Runtime/ProjectionDocumentStoreProviderSelector.cs`
-3. `Runtime/ProjectionDocumentStartupValidator.cs`
-4. `Runtime/ProjectionGraphStoreProviderRegistry.cs`
-5. `Runtime/ProjectionGraphStoreProviderSelector.cs`
-6. `Runtime/ProjectionGraphStartupValidator.cs`
+1. 删除能力协商模型（Capabilities/Requirements/Validator）整层。
+2. 删除薄封装中间层（Provider Registry / Provider Selector / Startup Validator）。
+3. Provider 选择逻辑内聚到：
+   - `ProjectionDocumentStoreFactory`
+   - `ProjectionGraphStoreFactory`
+4. 启动校验改为 HostedService 直接调用 Factory 进行真实创建 fail-fast。
 
-### 3.3 Stores.Abstractions 收敛
+### 3.2 ReadModel 抽象收敛
 
-1. `IDocumentReadModel` 从带字段接口改为 marker。
-2. 删除 `WorkflowExecutionReport.DocumentScope` 冗余实现。
+1. `IDocumentReadModel` 收敛为 marker。
+2. 删除 `WorkflowExecutionReport.DocumentScope` 冗余字段。
+3. 保留 `IProjectionDocumentMetadataProvider<TReadModel>` 作为索引 metadata 来源。
 
-## 4. 保留并强化的核心抽象
+### 3.3 Neo4j Provider 职责收敛（仅 Graph）
 
-1. `IProjectionStoreRegistration<TStore>`：Provider 注册单一契约。
-2. `IProjectionDocumentStoreFactory`：Document provider 选择 + 实例创建。
-3. `IProjectionGraphStoreFactory`：Graph provider 选择 + 实例创建。
-4. `ProjectionProviderSelectionException`：统一 fail-fast 错误模型。
-5. `ProjectionDocumentRuntimeOptions` / `ProjectionGraphRuntimeOptions`：最小配置模型。
+已删除：
 
-## 5. 与项目实际结构的落地映射
+1. `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs`
+2. `src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionReadModelStoreOptions.cs`
 
-### 5.1 Runtime 层
+已修改：
 
-- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreRegistrationSelector.cs`
-  - 新增统一选择算法。
-- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs`
-  - 直接从 `IServiceProvider.GetServices<IProjectionStoreRegistration<...>>()` 拉注册并选择。
-- `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs`
-  - 同上。
-- `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs`
-  - 仅注册 Factory / Materializer / Router / MetadataResolver。
+1. `src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs`
+   - 删除 `AddNeo4jDocumentStoreRegistration<TReadModel,TKey>(...)`
+   - 仅保留 `AddNeo4jGraphStoreRegistration(...)`
+2. `src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md`
+   - 改为 Graph-only 文档。
 
-### 5.2 Workflow 组装层
+### 3.4 Workflow Hosting Provider 矩阵收敛
 
-- `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`
-  - 直接注入并使用 `ProjectionDocumentRuntimeOptions` / `ProjectionGraphRuntimeOptions`。
-  - Store 解析直接调用 factory + providerName。
-- `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs`
-  - 启动校验改为直接调用 factory `Create(...)`。
-- `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
-  - 只注册 concrete options，不再注册 interface 转发。
+已修改：
 
-### 5.3 测试层
+1. `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
+   - `Projection:Document:Provider` 只允许 `InMemory | Elasticsearch`
+   - `Projection:Graph:Provider` 只允许 `InMemory | Neo4j`
+   - 删除 Document 分支中的 Neo4j 注册
+   - 明确抛错：`Neo4j cannot be used as document provider`
+2. `src/workflow/Aevatar.Workflow.Projection/README.md`
+   - 删除 `Projection:Document:Providers:Neo4j:*` 相关说明
 
-- `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs`
-  - 改为测试 DocumentFactory 选择行为。
-- `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs`
-  - 改为测试 GraphFactory 选择行为。
-- `test/Aevatar.Workflow.Host.Api.Tests/*`
-  - 运行时 options 断言切换为 concrete 类型。
+### 3.5 测试与门禁同步
 
-## 6. 开发者体验结果
+已修改：
 
-开发者当前只需要关心三件事：
+1. `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs`
+   - 删除 Neo4j Document Store E2E 场景
+2. `test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs`
+   - 新增断言：`Projection:Document:Provider=Neo4j` 必须抛错
+3. `tools/ci/architecture_guards.sh`
+   - 移除对 `Neo4jProjectionReadModelStore.cs` 必须存在的检查
 
-1. 定义 ReadModel（实现 `IDocumentReadModel` / `IGraphReadModel` 或同时实现）。
-2. 注册对应 Provider（Document 与 Graph 各自独立注册）。
-3. 配置 `ProjectionDocumentRuntimeOptions.ProviderName` 与 `ProjectionGraphRuntimeOptions.ProviderName`。
+## 4. 开发者使用模型（当前标准）
 
-系统会在：
+1. 定义 ReadModel：可同时实现 `IDocumentReadModel + IGraphReadModel`。
+2. 注册 Provider：Document 与 Graph 各自注册，互不混用职责。
+3. 配置 Provider：
+   - `Projection:Document:Provider=Elasticsearch`（生产）
+   - `Projection:Graph:Provider=Neo4j`（生产）
 
-1. 运行时写入阶段自动执行 `1:N` 分发。
-2. 启动阶段通过真实 store 创建做 fail-fast。
+系统自动完成：
 
-## 7. 验收标准（v10）
+1. 单次流程双写（Document + Graph）。
+2. 启动期双链路 fail-fast。
+3. 查询期索引查询与图遍历并存。
 
-全部满足即视为“彻底重构完成”：
+## 5. 验收结果（本次执行）
 
-1. Runtime 不存在 Provider Registry/Selector/StartupValidator 三类薄层。
-2. Runtime.Abstractions 不存在对应接口与 SelectionOptions 接口模型。
-3. Store 选择只通过 factory + providerName 执行。
-4. Document metadata 与 Graph relation 语义都保留并可运行。
-5. `ReadModel -> Targets` 明确为 `1:N`，当前 `N=2`。
-6. `dotnet build` 与相关测试通过。
+1. `dotnet build aevatar.slnx --nologo`：通过
+2. `dotnet test aevatar.slnx --nologo`：通过
+3. `bash tools/ci/architecture_guards.sh`：通过
+4. `bash tools/ci/projection_route_mapping_guard.sh`：通过
+5. `bash tools/ci/solution_split_guards.sh`：通过
+6. `bash tools/ci/solution_split_test_guards.sh`：通过
+7. `bash tools/ci/test_stability_guards.sh`：通过
 
-## 8. 后续可选继续收敛（不影响当前完成态）
+## 6. 最终验收标准（全部满足）
 
-1. 若继续极简，可把 `IProjectionDocumentStoreFactory` / `IProjectionGraphStoreFactory` 也收敛为 concrete 注入。
-2. 若继续减少类型数量，可评估 `GraphNodeDescriptor/GraphEdgeDescriptor` 与 `ProjectionGraphNode/ProjectionGraphEdge` 的边界合并。
+1. Workflow 生产路径固定为 `ES(Document) + Neo4j(Graph)`。
+2. Workflow 不再支持 `Projection:Document:Provider=Neo4j`。
+3. Neo4j Provider 仅承载 Graph Store。
+4. Projection Router 双写语义保持不变。
+5. 编译、测试、架构门禁全部通过。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionReadModelStoreOptions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionReadModelStoreOptions.cs
deleted file mode 100644
index 7c1feb453..000000000
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionReadModelStoreOptions.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-namespace Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
-
-public sealed class Neo4jProjectionReadModelStoreOptions
-{
-    public string Uri { get; set; } = "bolt://localhost:7687";
-
-    public string Username { get; set; } = "neo4j";
-
-    public string Password { get; set; } = "";
-
-    public string Database { get; set; } = "";
-
-    public int RequestTimeoutMs { get; set; } = 5000;
-
-    public int ListTakeMax { get; set; } = 200;
-
-    public bool AutoCreateConstraints { get; set; } = true;
-
-    public string NodeLabel { get; set; } = "ProjectionReadModel";
-}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index 6b762b6a8..7df415610 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -7,33 +7,6 @@ namespace Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
 
 public static class ServiceCollectionExtensions
 {
-    public static IServiceCollection AddNeo4jDocumentStoreRegistration<TReadModel, TKey>(
-        this IServiceCollection services,
-        Func<IServiceProvider, Neo4jProjectionReadModelStoreOptions> optionsFactory,
-        Func<IServiceProvider, string> scopeFactory,
-        Func<TReadModel, TKey> keySelector,
-        Func<TKey, string>? keyFormatter = null,
-        string providerName = ProjectionProviderNames.Neo4j)
-        where TReadModel : class
-    {
-        ArgumentNullException.ThrowIfNull(optionsFactory);
-        ArgumentNullException.ThrowIfNull(scopeFactory);
-        ArgumentNullException.ThrowIfNull(keySelector);
-
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
-                providerName,
-                provider => new Neo4jProjectionReadModelStore<TReadModel, TKey>(
-                    optionsFactory(provider),
-                    scopeFactory(provider),
-                    keySelector,
-                    keyFormatter,
-                    providerName,
-                    provider.GetService<ILogger<Neo4jProjectionReadModelStore<TReadModel, TKey>>>())));
-
-        return services;
-    }
-
     public static IServiceCollection AddNeo4jGraphStoreRegistration(
         this IServiceCollection services,
         Func<IServiceProvider, Neo4jProjectionGraphStoreOptions> optionsFactory,
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
index ae4cc8f2b..32ba7b540 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
@@ -1,24 +1,21 @@
 # Aevatar.CQRS.Projection.Providers.Neo4j
 
-通用 Neo4j Provider（支持 Document/Graph 两类能力）。
+通用 Neo4j Provider（仅 Graph 能力）。
 
 - 不依赖任何业务域 read model。
-- 通过 `IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>` 与上层模块解耦集成（Document）。
 - 通过 `IProjectionStoreRegistration<IProjectionGraphStore>` 与上层模块解耦集成（Graph）。
-- 能力声明：`Document/Graph` 索引、schema validation。
+- 能力声明：Graph schema validation。
 - 基于官方 `Neo4j.Driver` 实现连接与会话管理。
-- 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
+- 写入路径输出结构化日志：`provider/scope/nodeId-or-edgeId/elapsedMs/result/errorType`。
 
 ## DI 注册
 
 使用扩展方法：
 
-- `AddNeo4jDocumentStoreRegistration<TReadModel, TKey>(...)`
 - `AddNeo4jGraphStoreRegistration(...)`
 
 关键参数：
 
-- `optionsFactory`：绑定 `Projection:Document:Providers:Neo4j:*` 或 `Projection:Graph:Providers:Neo4j:*` 配置。
-- `scopeFactory`：文档 scope 或 graph scope 提供器。
-- `keySelector/keyFormatter`：ReadModel 主键映射。
+- `optionsFactory`：绑定 `Projection:Graph:Providers:Neo4j:*` 配置。
+- `scopeFactory`：graph scope 提供器。
 - `providerName`：默认 `Neo4j`（与 `ProjectionProviderNames.Neo4j` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
deleted file mode 100644
index 7f02d8356..000000000
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs
+++ /dev/null
@@ -1,311 +0,0 @@
-using System.Text.Json;
-using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
-using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Logging.Abstractions;
-using Neo4j.Driver;
-
-namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
-
-public sealed class Neo4jProjectionReadModelStore<TReadModel, TKey>
-    : IDocumentProjectionStore<TReadModel, TKey>,
-      IAsyncDisposable
-    where TReadModel : class
-{
-    private readonly IDriver _driver;
-    private readonly Func<TReadModel, TKey> _keySelector;
-    private readonly Func<TKey, string> _keyFormatter;
-    private readonly string _scope;
-    private readonly string _database;
-    private readonly int _listTakeMax;
-    private readonly string _label;
-    private readonly bool _autoCreateConstraints;
-    private readonly string _providerName;
-    private readonly ILogger<Neo4jProjectionReadModelStore<TReadModel, TKey>> _logger;
-    private readonly SemaphoreSlim _schemaLock = new(1, 1);
-    private readonly JsonSerializerOptions _jsonOptions = new()
-    {
-        PropertyNameCaseInsensitive = true,
-    };
-    private bool _schemaInitialized;
-
-    public Neo4jProjectionReadModelStore(
-        Neo4jProjectionReadModelStoreOptions options,
-        string scope,
-        Func<TReadModel, TKey> keySelector,
-        Func<TKey, string>? keyFormatter = null,
-        string providerName = ProjectionProviderNames.Neo4j,
-        ILogger<Neo4jProjectionReadModelStore<TReadModel, TKey>>? logger = null)
-    {
-        ArgumentNullException.ThrowIfNull(options);
-        ArgumentException.ThrowIfNullOrWhiteSpace(scope);
-        ArgumentNullException.ThrowIfNull(keySelector);
-
-        _scope = scope.Trim();
-        _database = options.Database?.Trim() ?? "";
-        _listTakeMax = options.ListTakeMax > 0 ? options.ListTakeMax : 200;
-        _label = NormalizeLabel(options.NodeLabel);
-        _autoCreateConstraints = options.AutoCreateConstraints;
-        _providerName = string.IsNullOrWhiteSpace(providerName)
-            ? ProjectionProviderNames.Neo4j
-            : providerName.Trim();
-        _keySelector = keySelector;
-        _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
-        _logger = logger ?? NullLogger<Neo4jProjectionReadModelStore<TReadModel, TKey>>.Instance;
-
-        var auth = string.IsNullOrWhiteSpace(options.Username)
-            ? AuthTokens.None
-            : AuthTokens.Basic(options.Username.Trim(), options.Password ?? "");
-        _driver = GraphDatabase.Driver(options.Uri, auth, config =>
-            config.WithConnectionTimeout(TimeSpan.FromMilliseconds(Math.Max(1000, options.RequestTimeoutMs))));
-    }
-
-    public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(readModel);
-        var startedAt = DateTimeOffset.UtcNow;
-        var key = "";
-        try
-        {
-            await EnsureSchemaAsync(ct);
-
-            key = ResolveReadModelKey(readModel);
-            var payload = JsonSerializer.Serialize(readModel, _jsonOptions);
-            var updatedAtEpochMs = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
-            var cypher = $"MERGE (n:{_label} {{scope: $scope, id: $id}}) " +
-                         "SET n.payload = $payload, n.updatedAtEpochMs = $updatedAtEpochMs";
-            var parameters = new Dictionary<string, object?>
-            {
-                ["scope"] = _scope,
-                ["id"] = key,
-                ["payload"] = payload,
-                ["updatedAtEpochMs"] = updatedAtEpochMs,
-            };
-
-            await ExecuteWriteAsync(cypher, parameters, ct);
-
-            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
-            _logger.LogInformation(
-                "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
-                _providerName,
-                typeof(TReadModel).FullName,
-                key,
-                elapsedMs,
-                "ok");
-        }
-        catch (Exception ex)
-        {
-            LogWriteFailure(key, startedAt, ex);
-            throw;
-        }
-    }
-
-    public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(mutate);
-        ct.ThrowIfCancellationRequested();
-
-        var keyValue = FormatKey(key);
-        var startedAt = DateTimeOffset.UtcNow;
-        var existing = await GetAsync(key, ct);
-        if (existing == null)
-        {
-            var notFound = new InvalidOperationException(
-                $"ReadModel '{typeof(TReadModel).FullName}' with key '{keyValue}' was not found.");
-            LogWriteFailure(keyValue, startedAt, notFound);
-            throw notFound;
-        }
-
-        try
-        {
-            mutate(existing);
-        }
-        catch (Exception ex)
-        {
-            LogWriteFailure(keyValue, startedAt, ex);
-            throw;
-        }
-
-        await UpsertAsync(existing, ct);
-    }
-
-    public async Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
-    {
-        ct.ThrowIfCancellationRequested();
-        await EnsureSchemaAsync(ct);
-
-        var keyValue = FormatKey(key);
-        if (keyValue.Length == 0)
-            return null;
-
-        var cypher = $"MATCH (n:{_label} {{scope: $scope, id: $id}}) " +
-                     "RETURN n.payload AS payload LIMIT 1";
-        var parameters = new Dictionary<string, object?>
-        {
-            ["scope"] = _scope,
-            ["id"] = keyValue,
-        };
-        var rows = await ExecuteReadAsync(cypher, parameters, ct);
-        if (rows.Count == 0)
-            return null;
-
-        if (!rows[0].TryGetValue("payload", out var payloadValue))
-            return null;
-
-        var payload = payloadValue.As<string>();
-        return Deserialize(payload);
-    }
-
-    public async Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
-    {
-        ct.ThrowIfCancellationRequested();
-        await EnsureSchemaAsync(ct);
-        var boundedTake = Math.Clamp(take, 1, _listTakeMax);
-        var cypher = $"MATCH (n:{_label} {{scope: $scope}}) " +
-                     "RETURN n.payload AS payload ORDER BY n.updatedAtEpochMs DESC LIMIT $take";
-        var parameters = new Dictionary<string, object?>
-        {
-            ["scope"] = _scope,
-            ["take"] = boundedTake,
-        };
-
-        var rows = await ExecuteReadAsync(cypher, parameters, ct);
-        var readModels = new List<TReadModel>(rows.Count);
-        foreach (var row in rows)
-        {
-            if (!row.TryGetValue("payload", out var payloadValue))
-                continue;
-
-            var item = Deserialize(payloadValue.As<string>());
-            if (item != null)
-                readModels.Add(item);
-        }
-
-        return readModels;
-    }
-
-    public async ValueTask DisposeAsync()
-    {
-        _schemaLock.Dispose();
-        await _driver.DisposeAsync();
-    }
-
-    private async Task EnsureSchemaAsync(CancellationToken ct)
-    {
-        if (!_autoCreateConstraints || _schemaInitialized)
-            return;
-
-        await _schemaLock.WaitAsync(ct);
-        try
-        {
-            if (_schemaInitialized)
-                return;
-
-            var constraintName = NormalizeConstraintName($"projection_readmodel_scope_id_{_label}");
-            var cypher = $"CREATE CONSTRAINT {constraintName} IF NOT EXISTS " +
-                         $"FOR (n:{_label}) REQUIRE (n.scope, n.id) IS UNIQUE";
-            await ExecuteWriteAsync(cypher, new Dictionary<string, object?>(), ct);
-            _schemaInitialized = true;
-        }
-        finally
-        {
-            _schemaLock.Release();
-        }
-    }
-
-    private async Task ExecuteWriteAsync(
-        string cypher,
-        IReadOnlyDictionary<string, object?> parameters,
-        CancellationToken ct)
-    {
-        await using var session = CreateSession(AccessMode.Write);
-        var cursor = await session.RunAsync(cypher, parameters);
-        await cursor.ConsumeAsync();
-        ct.ThrowIfCancellationRequested();
-    }
-
-    private async Task<IReadOnlyList<IReadOnlyDictionary<string, object>>> ExecuteReadAsync(
-        string cypher,
-        IReadOnlyDictionary<string, object?> parameters,
-        CancellationToken ct)
-    {
-        await using var session = CreateSession(AccessMode.Read);
-        var cursor = await session.RunAsync(cypher, parameters);
-        var rows = await cursor.ToListAsync();
-        ct.ThrowIfCancellationRequested();
-        return rows;
-    }
-
-    private IAsyncSession CreateSession(AccessMode accessMode)
-    {
-        return _driver.AsyncSession(options =>
-        {
-            options.WithDefaultAccessMode(accessMode);
-            if (_database.Length > 0)
-                options.WithDatabase(_database);
-        });
-    }
-
-    private string ResolveReadModelKey(TReadModel readModel)
-    {
-        var key = _keySelector(readModel);
-        var keyValue = FormatKey(key);
-        if (keyValue.Length == 0)
-            throw new InvalidOperationException(
-                $"ReadModel '{typeof(TReadModel).FullName}' resolved an empty key for Neo4j persistence.");
-        return keyValue;
-    }
-
-    private string FormatKey(TKey key) => _keyFormatter(key)?.Trim() ?? "";
-
-    private void LogWriteFailure(
-        string key,
-        DateTimeOffset startedAt,
-        Exception ex)
-    {
-        var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
-        _logger.LogError(
-            ex,
-            "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-            _providerName,
-            typeof(TReadModel).FullName,
-            key,
-            elapsedMs,
-            "failed",
-            ex.GetType().Name);
-    }
-
-    private TReadModel? Deserialize(string payload)
-    {
-        var value = JsonSerializer.Deserialize<TReadModel>(payload, _jsonOptions);
-        if (value == null)
-            return null;
-
-        var copied = JsonSerializer.Serialize(value, _jsonOptions);
-        return JsonSerializer.Deserialize<TReadModel>(copied, _jsonOptions);
-    }
-
-    private static string NormalizeLabel(string rawLabel)
-    {
-        var label = (rawLabel ?? "").Trim();
-        if (label.Length == 0)
-            label = "ProjectionReadModel";
-
-        var chars = label
-            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? ch : '_')
-            .ToArray();
-        return new string(chars);
-    }
-
-    private static string NormalizeConstraintName(string rawName)
-    {
-        var chars = rawName
-            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? char.ToLowerInvariant(ch) : '_')
-            .ToArray();
-        var normalized = new string(chars);
-        if (normalized.Length == 0)
-            return "projection_constraint";
-        if (char.IsDigit(normalized[0]))
-            normalized = $"c_{normalized}";
-        return normalized;
-    }
-}
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index 32b11e1bf..96fa2f5ac 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -91,12 +91,11 @@ FAQ：
 ## Provider 配置
 
 - Provider 选择统一配置入口：
-  - `Projection:Document:Provider`：`InMemory`（默认）/`Elasticsearch`/`Neo4j`
+  - `Projection:Document:Provider`：`InMemory`（默认）/`Elasticsearch`
   - `Projection:Graph:Provider`：`InMemory`（默认）/`Neo4j`
 - `Projection:Policies:DenyInMemoryGraphFactStore`：禁用 InMemory graph 作为事实源（生产建议开启）
 - 文档 Provider 配置：
   - `Projection:Document:Providers:Elasticsearch:*`
-  - `Projection:Document:Providers:Neo4j:*`
 - 图 Provider 配置：
   - `Projection:Graph:Providers:Neo4j:*`
 - `WorkflowExecutionProjection:ValidateDocumentProviderOnStartup`：启动阶段预校验 document provider（默认 `true`）
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index 37ab284fd..67ed08d2c 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -50,14 +50,14 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
 
     private static ProviderSelection ResolveProviderSelection(IConfiguration configuration)
     {
-        var documentProvider = NormalizeOrDefaultProvider(
+        var documentProvider = NormalizeDocumentProvider(
             configuration["Projection:Document:Provider"],
             ProjectionProviderNames.InMemory,
             "Projection:Document:Provider");
 
-        var graphProvider = NormalizeOrDefaultProvider(
+        var graphProvider = NormalizeGraphProvider(
             configuration["Projection:Graph:Provider"],
-            documentProvider,
+            ProjectionProviderNames.InMemory,
             "Projection:Graph:Provider");
 
         return new ProviderSelection(documentProvider, graphProvider);
@@ -107,7 +107,7 @@ private static bool ParseBool(string? value)
         return bool.TryParse(value, out var parsed) && parsed;
     }
 
-    private static string NormalizeOrDefaultProvider(
+    private static string NormalizeDocumentProvider(
         string? configuredValue,
         string fallbackValue,
         string optionPath)
@@ -120,12 +120,41 @@ private static string NormalizeOrDefaultProvider(
             return ProjectionProviderNames.InMemory;
         if (string.Equals(candidate, ProjectionProviderNames.Elasticsearch, StringComparison.OrdinalIgnoreCase))
             return ProjectionProviderNames.Elasticsearch;
+        if (string.Equals(candidate, ProjectionProviderNames.Neo4j, StringComparison.OrdinalIgnoreCase))
+        {
+            throw new InvalidOperationException(
+                "Neo4j cannot be used as document provider. " +
+                "Use Elasticsearch for document indexing and Neo4j for graph traversal.");
+        }
+
+        throw new InvalidOperationException(
+            $"Unsupported projection provider '{candidate}' configured at '{optionPath}'. " +
+            $"Allowed values: {ProjectionProviderNames.InMemory}, {ProjectionProviderNames.Elasticsearch}.");
+    }
+
+    private static string NormalizeGraphProvider(
+        string? configuredValue,
+        string fallbackValue,
+        string optionPath)
+    {
+        var candidate = string.IsNullOrWhiteSpace(configuredValue)
+            ? fallbackValue
+            : configuredValue.Trim();
+
+        if (string.Equals(candidate, ProjectionProviderNames.InMemory, StringComparison.OrdinalIgnoreCase))
+            return ProjectionProviderNames.InMemory;
         if (string.Equals(candidate, ProjectionProviderNames.Neo4j, StringComparison.OrdinalIgnoreCase))
             return ProjectionProviderNames.Neo4j;
+        if (string.Equals(candidate, ProjectionProviderNames.Elasticsearch, StringComparison.OrdinalIgnoreCase))
+        {
+            throw new InvalidOperationException(
+                "Elasticsearch cannot be used as graph provider. " +
+                "Use InMemory (dev/test) or Neo4j.");
+        }
 
         throw new InvalidOperationException(
             $"Unsupported projection provider '{candidate}' configured at '{optionPath}'. " +
-            $"Allowed values: {ProjectionProviderNames.InMemory}, {ProjectionProviderNames.Elasticsearch}, {ProjectionProviderNames.Neo4j}.");
+            $"Allowed values: {ProjectionProviderNames.InMemory}, {ProjectionProviderNames.Neo4j}.");
     }
 
     private static void RegisterDocumentProvider(
@@ -158,22 +187,6 @@ private static void RegisterDocumentProvider(
                     keySelector: report => report.RootActorId,
                     keyFormatter: key => key);
                 break;
-            case ProjectionProviderNames.Neo4j:
-                services.AddNeo4jDocumentStoreRegistration<WorkflowExecutionReport, string>(
-                    optionsFactory: _ =>
-                    {
-                        var providerOptions = new Neo4jProjectionReadModelStoreOptions();
-                        configuration.GetSection("Projection:Document:Providers:Neo4j").Bind(providerOptions);
-                        return providerOptions;
-                    },
-                    scopeFactory: sp =>
-                    {
-                        var metadataResolver = sp.GetRequiredService<IProjectionDocumentMetadataResolver>();
-                        return metadataResolver.Resolve<WorkflowExecutionReport>().IndexName;
-                    },
-                    keySelector: report => report.RootActorId,
-                    keyFormatter: key => key);
-                break;
             default:
                 throw new InvalidOperationException($"Unsupported document provider '{providerName}'.");
         }
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
index 37a5de16b..9d14be7de 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
@@ -1,7 +1,5 @@
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
-using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
-using Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
 using FluentAssertions;
 
 namespace Aevatar.CQRS.Projection.Core.Tests;
@@ -48,52 +46,6 @@ await store.MutateAsync(readModel.Id, model =>
         mutated!.Value.Should().Be("v2");
     }
 
-    [Neo4jIntegrationFact]
-    public async Task Neo4jStore_ShouldRoundtripUpsertMutateAndList()
-    {
-        var uri = GetRequiredEnvironmentVariable("AEVATAR_TEST_NEO4J_URI");
-        var username = GetRequiredEnvironmentVariable("AEVATAR_TEST_NEO4J_USERNAME");
-        var password = GetRequiredEnvironmentVariable("AEVATAR_TEST_NEO4J_PASSWORD");
-        var options = new Neo4jProjectionReadModelStoreOptions
-        {
-            Uri = uri,
-            Username = username,
-            Password = password,
-            NodeLabel = "ProjectionReadModelE2E",
-            AutoCreateConstraints = true,
-            RequestTimeoutMs = 5000,
-        };
-        var scope = "projection-provider-e2e-" + Guid.NewGuid().ToString("N");
-        await using var store = new Neo4jProjectionReadModelStore<ProviderStoreSmokeReadModel, string>(
-            options,
-            scope,
-            model => model.Id);
-
-        var readModel = new ProviderStoreSmokeReadModel
-        {
-            Id = Guid.NewGuid().ToString("N"),
-            Value = "v1",
-            UpdatedAtEpochMs = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds(),
-        };
-
-        await store.UpsertAsync(readModel);
-        var fetched = await store.GetAsync(readModel.Id);
-        fetched.Should().NotBeNull();
-        fetched!.Value.Should().Be("v1");
-
-        await store.MutateAsync(readModel.Id, model =>
-        {
-            model.Value = "v2";
-            model.UpdatedAtEpochMs = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
-        });
-        var mutated = await store.GetAsync(readModel.Id);
-        mutated.Should().NotBeNull();
-        mutated!.Value.Should().Be("v2");
-
-        var listed = await store.ListAsync(20);
-        listed.Select(model => model.Id).Should().Contain(readModel.Id);
-    }
-
     private static string GetRequiredEnvironmentVariable(string name)
     {
         var value = Environment.GetEnvironmentVariable(name);
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index df33037ac..f0348fd81 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -153,6 +153,24 @@ public void AddWorkflowProjectionReadModelProviders_WhenProviderConfiguredUnknow
             .WithMessage("*Unsupported projection provider*");
     }
 
+    [Fact]
+    public void AddWorkflowProjectionReadModelProviders_WhenDocumentProviderConfiguredAsNeo4j_ShouldThrow()
+    {
+        var services = new ServiceCollection();
+        var configuration = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string, string?>
+            {
+                ["Projection:Document:Provider"] = ProjectionProviderNames.Neo4j,
+                ["Projection:Graph:Provider"] = ProjectionProviderNames.Neo4j,
+            })
+            .Build();
+
+        Action act = () => services.AddWorkflowProjectionReadModelProviders(configuration);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Neo4j cannot be used as document provider*");
+    }
+
     [Fact]
     public void AddWorkflowProjectionReadModelProviders_WhenPolicyDeniesInMemoryRelationFactStore_ShouldThrow()
     {
diff --git a/tools/ci/architecture_guards.sh b/tools/ci/architecture_guards.sh
index af334e5a9..2aafdd383 100755
--- a/tools/ci/architecture_guards.sh
+++ b/tools/ci/architecture_guards.sh
@@ -659,7 +659,6 @@ fi
 projection_provider_store_files=(
   "src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs"
   "src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs"
-  "src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs"
 )
 
 for provider_store_file in "${projection_provider_store_files[@]}"; do

From ff4c8e237682d217a68bf44bfa92988073c52d1a Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 01:24:54 +0800
Subject: [PATCH 33/46] Refactor Projection ReadModel and Update Audit
 Scorecard Documentation

- Completed the full refactor of the Projection ReadModel architecture, consolidating document and graph capabilities into distinct fan-out models.
- Removed the outdated audit scorecard for the Projection ReadModel and introduced a new scorecard reflecting the updated architecture and validation results.
- Enhanced documentation to clarify the new structure, including the removal of deprecated classes and the introduction of streamlined provider registration.
- Improved overall clarity and maintainability of the codebase by eliminating redundant abstractions and updating dependency injection configurations.
- Ensured that all changes align with the latest architectural objectives and enhance the overall functionality of the Projection ReadModel.
---
 ...readmodel-full-refactor-plan-2026-02-24.md | 216 +++++++-------
 ...ojection-readmodel-scorecard-2026-02-24.md | 218 --------------
 ...on-store-readmodel-scorecard-2026-02-24.md |  78 +++++
 .../ServiceCollectionExtensions.cs            |  12 +-
 .../README.md                                 |  10 +-
 .../ElasticsearchProjectionReadModelStore.cs  | 101 +++++--
 .../ServiceCollectionExtensions.cs            |  13 +-
 .../README.md                                 |  10 +-
 .../Stores/InMemoryProjectionGraphStore.cs    |   4 +-
 .../InMemoryProjectionReadModelStore.cs       |  14 +-
 .../ServiceCollectionExtensions.cs            |   6 +-
 .../README.md                                 |   6 +-
 .../Stores/Neo4jProjectionGraphStore.cs       |   8 +-
 .../ProjectionDocumentRuntimeOptions.cs       |   8 -
 .../Graphs/IProjectionGraphStoreFactory.cs    |   8 -
 .../Graphs/ProjectionGraphRuntimeOptions.cs   |   8 -
 .../IProjectionDocumentStoreFactory.cs        |   9 -
 .../ReadModels/ProjectionProviderNames.cs     |  10 -
 .../ProjectionProviderSelectionException.cs   |  37 ---
 .../README.md                                 |  16 +-
 .../ServiceCollectionExtensions.cs            |   4 +-
 src/Aevatar.CQRS.Projection.Runtime/README.md |  18 +-
 .../Runtime/ProjectionDocumentStoreFactory.cs |  63 ----
 .../Runtime/ProjectionDocumentStoreFanout.cs  |  85 ++++++
 .../Runtime/ProjectionGraphStoreFactory.cs    |  59 ----
 .../Runtime/ProjectionGraphStoreFanout.cs     |  83 ++++++
 .../ProjectionStoreRegistrationSelector.cs    |  52 ----
 .../ServiceCollectionExtensions.cs            |  38 ---
 ...ReadModelStartupValidationHostedService.cs |  35 +--
 .../Aevatar.Workflow.Projection/README.md     |  21 +-
 ...tionProviderServiceCollectionExtensions.cs | 279 ++++++++----------
 ...chProjectionReadModelStoreBehaviorTests.cs |   6 +-
 .../ProjectionProviderE2EIntegrationTests.cs  |   6 +-
 .../ProjectionReadModelRuntimeTests.cs        |  83 +++---
 .../ProjectionReadModelStoreSelectorTests.cs  | 118 +++++---
 ...lowExecutionProjectionRegistrationTests.cs |  67 +----
 .../WorkflowHostingExtensionsCoverageTests.cs |  54 +---
 37 files changed, 791 insertions(+), 1072 deletions(-)
 delete mode 100644 docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md
 create mode 100644 docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderNames.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreRegistrationSelector.cs

diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
index ddc1abc39..135909c27 100644
--- a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
+++ b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
@@ -1,157 +1,149 @@
-# Projection ReadModel 全量重构实施文档（v12，已完成，无兼容）
+# Projection Store/ReadModel Full Refactor Plan (No Compatibility)
 
-> 日期：2026-02-24  
-> 范围：`Aevatar.CQRS.Projection.Stores.Abstractions`、`Aevatar.CQRS.Projection.Core.Abstractions`、`Aevatar.CQRS.Projection.Runtime.Abstractions`、`Aevatar.CQRS.Projection.Runtime`、`Aevatar.Workflow.Projection`、`Aevatar.Workflow.Extensions.Hosting`、`Aevatar.CQRS.Projection.Providers.*`
+- Date: 2026-02-24
+- Status: Completed
+- Scope: `Aevatar.CQRS.Projection.*` + `Aevatar.Workflow.Projection` + `Aevatar.Workflow.Extensions.Hosting`
 
-## 1. 最终结论
+## 1. Refactor Goals
 
-Workflow Projection 已彻底收敛为单链路 `1:N` 扇出模型，并固定生产职责分工：
+1. Remove single-provider selection (`providerName + factory + runtime options`) and switch to one-to-many fan-out.
+2. Keep Document/Graph as independent provider categories.
+3. Make read model routing capability-driven:
+   - `IDocumentReadModel` -> document store fan-out
+   - `IGraphReadModel` -> graph store fan-out
+   - both interfaces -> both paths
+4. Preserve index metadata and graph relation semantics:
+   - document: `DocumentIndexMetadata`
+   - graph: `IGraphReadModel.GraphNodes/GraphEdges`
+5. Delete redundant abstraction layers and dead code without compatibility shims.
 
-1. `Document Target = Elasticsearch`（索引、检索、快照/列表查询）
-2. `Graph Target = Neo4j`（关系、邻居、子图遍历）
+## 2. Target Architecture
 
-同一 `ReadModel`（`WorkflowExecutionReport`）在一次投影中并行写入 `Document + Graph`，不是二选一。
-
-## 2. 最终架构图
-
-### 2.1 写入链路（单链路双写）
+### 2.1 Write Pipeline
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart LR
-    A["Event Stream"] --> B["Reducer / Projector"]
-    B --> C["ReadModel(T)"]
-    C --> D["IProjectionMaterializationRouter<T,TKey>"]
+    A["Domain Event Stream"] --> B["Projection Coordinator / Dispatcher"]
+    B --> C["Workflow ReadModel Reducers + Projectors"]
+    C --> D["IProjectionMaterializationRouter<TReadModel,TKey>"]
 
-    D --> E["T : IDocumentReadModel ?"]
-    D --> F["T : IGraphReadModel ?"]
+    D --> E["ProjectionDocumentStoreFanout<TReadModel,TKey>"]
+    D --> F["ProjectionGraphMaterializer<TReadModel>"]
 
-    E --> G["IDocumentProjectionStore<T,TKey>"]
-    F --> H["IProjectionGraphMaterializer<T>"]
-    H --> I["IProjectionGraphStore"]
+    E --> E1["Document Provider #1 (InMemory)"]
+    E --> E2["Document Provider #2 (Elasticsearch)"]
 
-    G --> J["Elasticsearch"]
-    I --> K["Neo4j"]
+    F --> G["ProjectionGraphStoreFanout"]
+    G --> G1["Graph Provider #1 (InMemory)"]
+    G --> G2["Graph Provider #2 (Neo4j)"]
 ```
 
-### 2.2 查询链路（索引与遍历并存）
+### 2.2 Query Pipeline
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart TB
-    A["Query API / Application Service"] --> B["WorkflowExecutionProjectionQueryService"]
-
-    B --> C["Document Query"]
-    B --> D["Graph Query"]
+flowchart LR
+    Q1["WorkflowProjectionQueryReader"] --> Q2["IDocumentProjectionStore<WorkflowExecutionReport,string>"]
+    Q1 --> Q3["IProjectionGraphStore"]
 
-    C --> E["IDocumentProjectionStore"]
-    D --> F["IProjectionGraphStore"]
+    Q2 --> Q4["ProjectionDocumentStoreFanout (primary read store + fan-out write)"]
+    Q3 --> Q5["ProjectionGraphStoreFanout (primary read store + fan-out write)"]
 
-    E --> G["Elasticsearch"]
-    F --> H["Neo4j"]
+    Q4 --> Q6["Document Primary Provider"]
+    Q5 --> Q7["Graph Primary Provider"]
 ```
 
-### 2.3 Provider 选择与启动校验（极简）
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart TB
-    A["ProjectionDocumentRuntimeOptions.ProviderName"] --> C["ProjectionDocumentStoreFactory"]
-    B["ProjectionGraphRuntimeOptions.ProviderName"] --> D["ProjectionGraphStoreFactory"]
-
-    E["IProjectionStoreRegistration<IDocumentProjectionStore<,>>[]"] --> C
-    F["IProjectionStoreRegistration<IProjectionGraphStore>[]"] --> D
-
-    C --> G["Create Document Store or Fail"]
-    D --> H["Create Graph Store or Fail"]
-
-    I["WorkflowReadModelStartupValidationHostedService"] --> C
-    I --> D
-```
+## 3. Major Structural Changes
 
-## 3. 已完成的彻底重构项
+## 3.1 Removed (hard delete)
 
-### 3.1 Runtime 抽象与实现去层
+- `ProjectionDocumentRuntimeOptions`
+- `ProjectionGraphRuntimeOptions`
+- `ProjectionProviderNames`
+- `IProjectionDocumentStoreFactory`
+- `IProjectionGraphStoreFactory`
+- `ProjectionProviderSelectionException`
+- `ProjectionDocumentStoreFactory`
+- `ProjectionGraphStoreFactory`
+- `ProjectionStoreRegistrationSelector`
 
-1. 删除能力协商模型（Capabilities/Requirements/Validator）整层。
-2. 删除薄封装中间层（Provider Registry / Provider Selector / Startup Validator）。
-3. Provider 选择逻辑内聚到：
-   - `ProjectionDocumentStoreFactory`
-   - `ProjectionGraphStoreFactory`
-4. 启动校验改为 HostedService 直接调用 Factory 进行真实创建 fail-fast。
+## 3.2 Added
 
-### 3.2 ReadModel 抽象收敛
+- `ProjectionDocumentStoreFanout<TReadModel, TKey>`
+- `ProjectionGraphStoreFanout`
 
-1. `IDocumentReadModel` 收敛为 marker。
-2. 删除 `WorkflowExecutionReport.DocumentScope` 冗余字段。
-3. 保留 `IProjectionDocumentMetadataProvider<TReadModel>` 作为索引 metadata 来源。
+## 3.3 Runtime DI Model
 
-### 3.3 Neo4j Provider 职责收敛（仅 Graph）
+`AddProjectionReadModelRuntime()` now registers:
 
-已删除：
+- `IDocumentProjectionStore<,>` -> `ProjectionDocumentStoreFanout<,>`
+- `IProjectionGraphStore` -> `ProjectionGraphStoreFanout`
+- `IProjectionGraphMaterializer<>`
+- `IProjectionMaterializationRouter<,>`
+- `IProjectionDocumentMetadataResolver`
 
-1. `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionReadModelStore.cs`
-2. `src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionReadModelStoreOptions.cs`
+## 3.4 Workflow Provider Registration Model
 
-已修改：
+`AddWorkflowProjectionReadModelProviders(configuration)` now uses enable flags:
 
-1. `src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs`
-   - 删除 `AddNeo4jDocumentStoreRegistration<TReadModel,TKey>(...)`
-   - 仅保留 `AddNeo4jGraphStoreRegistration(...)`
-2. `src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md`
-   - 改为 Graph-only 文档。
+- `Projection:Document:Providers:InMemory:Enabled`
+- `Projection:Document:Providers:Elasticsearch:Enabled`
+- `Projection:Graph:Providers:InMemory:Enabled`
+- `Projection:Graph:Providers:Neo4j:Enabled`
 
-### 3.4 Workflow Hosting Provider 矩阵收敛
+Rules:
 
-已修改：
+1. Legacy single-select keys (`Projection:Document:Provider`, `Projection:Graph:Provider`) are rejected.
+2. InMemory providers are fallback defaults when durable providers are not enabled.
+3. `Projection:Policies:DenyInMemoryGraphFactStore=true` forbids in-memory graph fact store.
 
-1. `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
-   - `Projection:Document:Provider` 只允许 `InMemory | Elasticsearch`
-   - `Projection:Graph:Provider` 只允许 `InMemory | Neo4j`
-   - 删除 Document 分支中的 Neo4j 注册
-   - 明确抛错：`Neo4j cannot be used as document provider`
-2. `src/workflow/Aevatar.Workflow.Projection/README.md`
-   - 删除 `Projection:Document:Providers:Neo4j:*` 相关说明
+## 3.5 Elasticsearch Metadata Behavior
 
-### 3.5 测试与门禁同步
+`ElasticsearchProjectionReadModelStore` now consumes full `DocumentIndexMetadata`:
 
-已修改：
+- `IndexName` as logical scope input
+- `MappingJson` as index mappings object
+- `Settings` as index settings object
+- `Aliases` as index alias object
 
-1. `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs`
-   - 删除 Neo4j Document Store E2E 场景
-2. `test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs`
-   - 新增断言：`Projection:Document:Provider=Neo4j` 必须抛错
-3. `tools/ci/architecture_guards.sh`
-   - 移除对 `Neo4jProjectionReadModelStore.cs` 必须存在的检查
+Index bootstrap now uses metadata payload instead of fixed `{"mappings":{"dynamic":true}}`.
 
-## 4. 开发者使用模型（当前标准）
+## 4. Project-Level Responsibility Split (Post-Refactor)
 
-1. 定义 ReadModel：可同时实现 `IDocumentReadModel + IGraphReadModel`。
-2. 注册 Provider：Document 与 Graph 各自注册，互不混用职责。
-3. 配置 Provider：
-   - `Projection:Document:Provider=Elasticsearch`（生产）
-   - `Projection:Graph:Provider=Neo4j`（生产）
+- `Aevatar.CQRS.Projection.Stores.Abstractions`
+  - pure read model/store contracts and metadata contracts
+- `Aevatar.CQRS.Projection.Runtime.Abstractions`
+  - store registration + materialization contracts only
+- `Aevatar.CQRS.Projection.Runtime`
+  - fan-out composition + graph materialization + metadata resolver
+- `Aevatar.CQRS.Projection.Providers.*`
+  - concrete provider implementations only
+- `Aevatar.Workflow.Projection`
+  - workflow reducers/projectors/read model/query services
+- `Aevatar.Workflow.Extensions.Hosting`
+  - host-layer provider enablement and policy binding
 
-系统自动完成：
+## 5. Implementation Status by Module
 
-1. 单次流程双写（Document + Graph）。
-2. 启动期双链路 fail-fast。
-3. 查询期索引查询与图遍历并存。
+- Runtime: completed
+- Runtime.Abstractions: completed
+- Provider extensions: completed
+- Workflow projection composition: completed
+- Workflow hosting provider extension: completed
+- Tests: completed and updated to fan-out semantics
+- Readme/docs sync: completed
 
-## 5. 验收结果（本次执行）
+## 6. Verification
 
-1. `dotnet build aevatar.slnx --nologo`：通过
-2. `dotnet test aevatar.slnx --nologo`：通过
-3. `bash tools/ci/architecture_guards.sh`：通过
-4. `bash tools/ci/projection_route_mapping_guard.sh`：通过
-5. `bash tools/ci/solution_split_guards.sh`：通过
-6. `bash tools/ci/solution_split_test_guards.sh`：通过
-7. `bash tools/ci/test_stability_guards.sh`：通过
+Commands executed:
 
-## 6. 最终验收标准（全部满足）
+1. `dotnet build aevatar.slnx --nologo`
+2. `dotnet test aevatar.slnx --nologo`
+3. `bash tools/ci/architecture_guards.sh`
+4. `bash tools/ci/projection_route_mapping_guard.sh`
+5. `bash tools/ci/solution_split_guards.sh`
+6. `bash tools/ci/solution_split_test_guards.sh`
+7. `bash tools/ci/test_stability_guards.sh`
 
-1. Workflow 生产路径固定为 `ES(Document) + Neo4j(Graph)`。
-2. Workflow 不再支持 `Projection:Document:Provider=Neo4j`。
-3. Neo4j Provider 仅承载 Graph Store。
-4. Projection Router 双写语义保持不变。
-5. 编译、测试、架构门禁全部通过。
+Result: all passed.
diff --git a/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md
deleted file mode 100644
index c80c2ce36..000000000
--- a/docs/audit-scorecard/projection-readmodel-scorecard-2026-02-24.md
+++ /dev/null
@@ -1,218 +0,0 @@
-# Projection ReadModel 架构评分卡（2026-02-24，严格详细版）
-
-## 1. 审计范围与方法
-
-1. 审计对象：`Projection ReadModel` 端到端链路（Host 接线、Application 端口、Projection Core 编排、Runtime 选型、Provider 存储、AGUI 同链路分支、CI 门禁与测试）。
-2. 评分规范：`docs/audit-scorecard/README.md`（100 分，6 维度）。
-3. 评分原则：按“先满分后扣分”，仅对已落地且可复现的问题扣分；每项扣分绑定代码证据（文件+行号）或命令结果。
-4. 审计基线：遵循评分规范第 2 节（InMemory/Local Actor/ProjectReference 不作为扣分项）。
-
-## 2. 关键验证结果（本次实跑）
-
-| 检查项 | 命令 | 结果 |
-|---|---|---|
-| 架构门禁（含 route mapping） | `bash tools/ci/architecture_guards.sh` | 通过（`Architecture guards passed.`） |
-| 路由映射专项 | `bash tools/ci/projection_route_mapping_guard.sh` | 通过（`Projection route-mapping guard passed.`） |
-| Projection Core 定向测试 | `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo --filter "FullyQualifiedName~ProjectionReadModelRuntimeTests\|FullyQualifiedName~ProjectionDocumentStoreSelectorTests\|FullyQualifiedName~ProjectionProviderE2EIntegrationTests" -m:1 -p:UseSharedCompilation=false` | 通过（`10 passed / 0 failed / 2 skipped`） |
-| Workflow Projection 定向测试 | `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo --filter "FullyQualifiedName~WorkflowExecutionProjectionRegistrationTests\|FullyQualifiedName~WorkflowExecutionReadModelProjectorTests\|FullyQualifiedName~WorkflowProjectionOrchestrationComponentTests" -m:1 -p:UseSharedCompilation=false` | 通过（`36 passed / 0 failed / 0 skipped`） |
-
-## 3. 总分与等级
-
-**总分：95 / 100（A+）**
-
-| 维度 | 权重 | 得分 | 扣分说明 |
-|---|---:|---:|---|
-| 分层与依赖反转 | 20 | 20 | 未发现跨层反向依赖与宿主承载核心业务编排问题。 |
-| CQRS 与统一投影链路 | 20 | 19 | 默认去重器为透传实现，降低 at-least-once 场景下 readmodel 幂等鲁棒性。 |
-| Projection 编排与状态约束 | 20 | 17 | live sink 订阅关系保存在进程内 lease 对象，未 actor/distributed 化。 |
-| 读写分离与会话语义 | 15 | 14 | 完成阶段时间源使用 `DateTimeOffset.UtcNow`，未统一走 `IProjectionClock`。 |
-| 命名语义与冗余清理 | 10 | 10 | 命名、职责边界与扩展点语义一致，未见重复空壳层。 |
-| 可验证性（门禁/构建/测试） | 15 | 15 | 架构门禁 + 路由门禁 + 相关定向测试均通过。 |
-
-## 4. 详细扣分项（严格）
-
-### 4.1 P2-1：Live Sink 订阅运行态仍为进程内事实（-3）
-
-1. 证据：`WorkflowExecutionRuntimeLease` 内维护 `_liveSinkSubscriptions` 列表，并提供 attach/detach/count 逻辑。  
-   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionRuntimeLease.cs:8`  
-   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionRuntimeLease.cs:31`  
-   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionRuntimeLease.cs:60`
-2. 证据：`ReleaseIfIdleAsync` 依赖该本地计数决定是否释放投影 ownership。  
-   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReleaseService.cs:31`
-3. 影响：在多节点/连接迁移场景，sink 订阅事实与 ownership 释放决策可能出现节点本地视角偏差。
-4. 结论：不属于“actorId->context 字典”硬违规，但与“投影会话/订阅运行态 actor 化”目标相比仍有架构欠账。
-
-### 4.2 P2-2：默认去重策略为透传（-1）
-
-1. 证据：默认注入 `PassthroughEventDeduplicator`。  
-   `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs:46`
-2. 证据：透传实现始终返回 `true`，不记录任何去重状态。  
-   `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs:165`
-3. 证据：projector 去重逻辑依赖该接口。  
-   `src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs:61`
-4. 影响：在重复投递或重放噪声下，timeline/summary 可能重复累计，影响 readmodel 一致性鲁棒性。
-
-### 4.3 P3-1：时间源未完全统一（-1）
-
-1. 证据：`CompleteAsync` 直接使用 `DateTimeOffset.UtcNow`。  
-   `src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs:88`
-2. 对比：同链路其他组件已使用 `IProjectionClock`（activation/updater/failure reporter）。  
-   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionActivationService.cs:39`  
-   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs:24`  
-   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchFailureReporter.cs:42`
-3. 影响：测试可控性与跨组件时间语义一致性略受影响。
-
-## 5. 正向证据（加分项）
-
-1. 统一选择权威入口：Runtime selector 复用抽象层权威 `ProjectionDocumentStoreSelector.Select(...)`。  
-   `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs:32`  
-   `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/ProjectionDocumentStoreSelector.cs:5`
-2. ReadModel/Relation 统一规划：单一 `ProjectionStoreSelectionPlanner` 产出双存储 selection plan。  
-   `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreSelectionPlanner.cs:12`  
-   `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs:155`
-3. startup 校验与运行时选择同源：`WorkflowReadModelStartupValidationHostedService` 复用同一 selection plan。  
-   `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs:47`
-4. 生命周期显式 lease/session：Lifecycle port 不暴露 `actorId` 反查，Attach/Detach/Release 都基于 lease。  
-   `src/workflow/Aevatar.Workflow.Application.Abstractions/Projections/IWorkflowExecutionProjectionLifecyclePort.cs:16`
-5. ownership actor 化：acquire/release 通过 `ActorProjectionOwnershipCoordinator -> ProjectionOwnershipCoordinatorGAgent`。  
-   `src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs:23`  
-   `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs:25`
-6. 统一入口一对多分发：同一 `EventEnvelope` 在 coordinator 中分发到多个 projector 分支。  
-   `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionCoordinator.cs:19`
-7. AGUI 与 ReadModel 共用同链路输入：AGUI projector 作为同一 projector 分支发布 run event。  
-   `src/workflow/Aevatar.Workflow.Infrastructure/DependencyInjection/WorkflowCapabilityServiceCollectionExtensions.cs:22`  
-   `src/workflow/Aevatar.Workflow.Presentation.AGUIAdapter/WorkflowExecutionAGUIEventProjector.cs:15`
-8. Route mapping 守卫要求 `TypeUrl` 派生 + 精确键匹配 + `TryGetValue` 命中。  
-   `tools/ci/projection_route_mapping_guard.sh:11`  
-   `tools/ci/projection_route_mapping_guard.sh:71`
-9. 中间层 ID 映射字典门禁已落地（full-scan）。  
-   `tools/ci/architecture_guards.sh:548`  
-   `tools/ci/architecture_guards.sh:590`
-
-## 6. 分模块评分
-
-| 模块 | 得分 | 结论 |
-|---|---:|---|
-| Projection Core（编排/订阅/ownership） | 95 | 主链清晰，ownership actor 化到位；runtime sink 运行态仍有本地化残留。 |
-| Runtime（provider registry/selector/factory/planner） | 100 | 单一权威选择逻辑 + 统一规划，结构化日志与失败语义完整。 |
-| Workflow Projection（port/orchestration/projector） | 92 | 端口分离、链路完整；默认去重透传与完成时间源不统一需收敛。 |
-| Provider（InMemory/ES/Neo4j + relation） | 96 | 能力声明与写路径日志规范较完整；可观测性和一致性策略仍可增强。 |
-| Host/API 组合层 | 96 | API 主要负责协议适配与组合；未下沉到 projection 内核细节。 |
-| Guards + Tests | 98 | 守卫覆盖关键架构约束，相关定向测试通过，验证闭环较完整。 |
-
-## 7. 详细架构图
-
-### 7.1 Projection ReadModel 主链路（命令驱动 + 同链路 AGUI）
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-    subgraph H["Host / API"]
-        H1["/api/chat /api/ws/chat"]
-        H2["ICommandExecutionService"]
-        H3["IWorkflowExecutionQueryApplicationService"]
-    end
-
-    subgraph A["Application Layer"]
-        A1["WorkflowRunContextFactory"]
-        A2["IWorkflowExecutionProjectionLifecyclePort"]
-        A3["WorkflowRunExecutionEngine"]
-        A4["WorkflowRunResourceFinalizer"]
-        A5["IWorkflowExecutionProjectionQueryPort"]
-    end
-
-    subgraph P["Projection Ports + Orchestration"]
-        P1["WorkflowExecutionProjectionLifecycleService"]
-        P2["WorkflowProjectionActivationService"]
-        P3["WorkflowProjectionLeaseManager"]
-        P4["ActorProjectionOwnershipCoordinator"]
-        P5["ProjectionOwnershipCoordinatorGAgent(State)"]
-        P6["ProjectionLifecycleService"]
-        P7["ProjectionSubscriptionRegistry"]
-        P8["ActorStreamSubscriptionHub<EventEnvelope>"]
-    end
-
-    subgraph B["Projector Branches (Same Envelope)"]
-        B1["WorkflowExecutionReadModelProjector"]
-        B2["WorkflowExecutionRelationProjector"]
-        B3["WorkflowExecutionAGUIEventProjector"]
-    end
-
-    subgraph R["Runtime Selection + Stores"]
-        R1["ProjectionStoreSelectionPlanner"]
-        R2["ProjectionReadModelBindingResolver"]
-        R3["ProjectionReadModelStoreFactory"]
-        R4["ProjectionRelationStoreFactory"]
-        R5["InMemory / Elasticsearch / Neo4j"]
-    end
-
-    subgraph S["Session Stream + Live Sink"]
-        S1["ProjectionSessionEventHub<WorkflowRunEvent>"]
-        S2["WorkflowRunEventChannel / Sink"]
-    end
-
-    H1 --> H2
-    H2 --> A1
-    A1 --> A2
-    A2 --> P1
-    P1 --> P2
-    P2 --> P3 --> P4 --> P5
-    P2 --> P6 --> P7 --> P8
-    P8 --> B1
-    P8 --> B2
-    P8 --> B3
-
-    R1 --> R2
-    P2 --> R1
-    B1 --> R3 --> R5
-    B2 --> R4 --> R5
-    B3 --> S1 --> S2
-    A3 --> A4 --> A2
-
-    H3 --> A5
-    A5 --> R3
-    A5 --> R4
-```
-
-### 7.2 Store 选型与能力校验链（ReadModel + Relation）
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart TB
-    O1["ProjectionStoreRuntimeOptions"] --> P1["ProjectionStoreSelectionPlanner.Build"]
-    P1 --> P2["DocumentSelectionOptions"]
-    P1 --> P3["RelationSelectionOptions"]
-    O2["ReadModel Bindings(Type.FullName -> IndexKind)"] --> B1["ProjectionReadModelBindingResolver.Resolve"] --> P1
-
-    P2 --> F1["ProjectionReadModelStoreFactory.Create"]
-    F1 --> G1["ProviderRegistry.GetRegistrations"]
-    G1 --> S1["ProjectionReadModelProviderSelector.Select"]
-    S1 --> X1["ProjectionDocumentStoreSelector.Select(Authority)"]
-    X1 --> C1["ProjectionProviderCapabilityValidator.EnsureSupported"]
-    C1 --> RM["IProjectionReadModelStore"]
-
-    P3 --> F2["ProjectionRelationStoreFactory.Create"]
-    F2 --> G2["RelationProviderRegistry.GetRegistrations"]
-    G2 --> S2["ProjectionRelationStoreProviderSelector.Select"]
-    S2 --> X2["ProjectionStoreSelector.Select(Authority)"]
-    X2 --> C2["ProjectionProviderCapabilityValidator.EnsureSupported"]
-    C2 --> RS["IProjectionRelationStore"]
-
-    RM --> V1["WorkflowExecutionReadModelProjector"]
-    RS --> V2["WorkflowExecutionRelationProjector"]
-```
-
-## 8. 结论与优先级建议
-
-### P1
-
-1. 无。
-
-### P2
-
-1. 将 live sink 订阅计数/绑定关系从 `WorkflowExecutionRuntimeLease` 迁移到 actor 持久态或抽象化分布式状态，避免多节点本地视角偏差。
-2. 用可替换的持久化 `IEventDeduplicator` 作为默认实现（至少按 `rootActorId + envelopeId` 做幂等记录），透传实现仅用于 dev/test。
-
-### P3
-
-1. 将 `WorkflowExecutionReadModelProjector.CompleteAsync` 的时间源统一到 `IProjectionClock`，消除链路内时间语义分叉。
diff --git a/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
new file mode 100644
index 000000000..868eaa7a8
--- /dev/null
+++ b/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
@@ -0,0 +1,78 @@
+# Projection Store / ReadModel 严格评分卡（2026-02-24，重构后）
+
+## 1. 审计范围
+
+1. `src/Aevatar.CQRS.Projection.Stores.Abstractions`
+2. `src/Aevatar.CQRS.Projection.Runtime.Abstractions`
+3. `src/Aevatar.CQRS.Projection.Runtime`
+4. `src/Aevatar.CQRS.Projection.Providers.InMemory`
+5. `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
+6. `src/Aevatar.CQRS.Projection.Providers.Neo4j`
+7. `src/workflow/Aevatar.Workflow.Projection`
+8. `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting`
+9. `test/Aevatar.CQRS.Projection.Core.Tests`、`test/Aevatar.Workflow.Host.Api.Tests`
+
+## 2. 验证基线
+
+已执行并通过：
+
+1. `dotnet build aevatar.slnx --nologo`
+2. `dotnet test aevatar.slnx --nologo`
+3. `bash tools/ci/architecture_guards.sh`
+4. `bash tools/ci/projection_route_mapping_guard.sh`
+5. `bash tools/ci/solution_split_guards.sh`
+6. `bash tools/ci/solution_split_test_guards.sh`
+7. `bash tools/ci/test_stability_guards.sh`
+
+## 3. 总分结论
+
+- **总分：90 / 100**
+- **等级：A-（严格口径）**
+- **结论：架构主干已清晰收敛为“Document/Graph 分离 + 各自一对多 Fan-out + ReadModel 接口驱动”。主要剩余风险集中在 Graph 清理窗口与跨存储一致性策略。**
+
+## 4. 维度评分（严格扣分）
+
+| 维度 | 权重 | 得分 | 说明 |
+|---|---:|---:|---|
+| 架构边界与抽象收敛 | 15 | 15 | 已删除 `Factory/Selector/RuntimeOptions/ProviderNames` 冗余层；Runtime 仅保留 fan-out 与 materialization。 |
+| Provider 模型清晰度 | 15 | 15 | 从单选改为一对多广播：`ProjectionDocumentStoreFanout<,>`、`ProjectionGraphStoreFanout`。 |
+| Document 索引语义完整性 | 20 | 18 | Elasticsearch 已使用 `DocumentIndexMetadata` 的 `MappingJson/Settings/Aliases` 初始化索引。 |
+| Graph 关系语义与正确性 | 15 | 12 | `IGraphReadModel` 声明式节点/边清晰；但图清理仍依赖固定窗口扫描。 |
+| 一致性与失败语义 | 10 | 8 | 双写为顺序 fan-out，非事务；故障语义仍是“部分成功即失败抛出”。 |
+| Provider 实现质量与性能 | 10 | 8 | ES OCC 完整；Neo4j 子图遍历仍存在逐层多次查询放大风险。 |
+| 可观测性 | 5 | 4 | 文档写路径日志较完整；图路径仍可补充统一成功日志与关键指标。 |
+| 测试与治理门禁 | 10 | 10 | Core/Workflow 测试已对 fan-out 语义更新，build/test/guards 全通过。 |
+
+## 5. 关键发现
+
+### 高优先级
+
+1. **Graph 清理窗口固定值风险**
+   - `ProjectionGraphMaterializer` 仍使用固定 `Depth/Take` 子图扫描清理旧边。
+
+### 中优先级
+
+1. **跨 Provider 双写非事务**
+   - 当前策略是顺序写入，失败后由上层重试/补偿，不保证原子。
+
+2. **Neo4j 子图查询存在潜在放大**
+   - 深度遍历为循环邻接查询模式，大图场景需继续压测与优化。
+
+## 6. 严格整改建议
+
+### P1（必须）
+
+1. 为 Graph 清理增加可配置窗口、分批策略与 owner/version 标记。
+
+### P2（应做）
+
+1. 增加跨 Provider 写失败重试/补偿策略文档与可观测指标。
+2. 为 Neo4j 子图查询补充压力测试与查询计划基准。
+
+### P3（可选）
+
+1. 引入图写入/清理统计指标（吞吐、延迟、清理命中率）。
+
+## 7. 最终判定
+
+重构后已达到“结构正确、边界清晰、可验证”的高质量状态；在严格口径下为 **90/100（A-）**。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index 910a0b83f..a6aee7094 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -10,25 +10,23 @@ public static class ServiceCollectionExtensions
     public static IServiceCollection AddElasticsearchDocumentStoreRegistration<TReadModel, TKey>(
         this IServiceCollection services,
         Func<IServiceProvider, ElasticsearchProjectionReadModelStoreOptions> optionsFactory,
-        Func<IServiceProvider, string> indexScopeFactory,
+        Func<IServiceProvider, DocumentIndexMetadata> metadataFactory,
         Func<TReadModel, TKey> keySelector,
-        Func<TKey, string>? keyFormatter = null,
-        string providerName = ProjectionProviderNames.Elasticsearch)
+        Func<TKey, string>? keyFormatter = null)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
-        ArgumentNullException.ThrowIfNull(indexScopeFactory);
+        ArgumentNullException.ThrowIfNull(metadataFactory);
         ArgumentNullException.ThrowIfNull(keySelector);
 
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
-                providerName,
+                "Elasticsearch",
                 provider => new ElasticsearchProjectionReadModelStore<TReadModel, TKey>(
                     optionsFactory(provider),
-                    indexScopeFactory(provider),
+                    metadataFactory(provider),
                     keySelector,
                     keyFormatter,
-                    providerName,
                     provider.GetService<ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>>())));
 
         return services;
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
index 9bdf6a6ad..9c9591361 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
@@ -4,21 +4,17 @@
 
 - 不依赖任何业务域 read model。
 - 通过 `IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>` 与上层模块解耦集成。
-- 能力声明：`Document` 索引（不声明 alias/schema validation 能力）。
-- 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
 - `MutateAsync` 基于 `seq_no/primary_term` 执行 OCC（冲突可重试，超限失败）。
 - `AutoCreateIndex=false` 时可通过 `MissingIndexBehavior` 控制索引缺失行为（默认抛错）。
-- `ListSortField` 为空时默认按 `CreatedAt desc -> _id desc` 排序，优先按创建时间倒序并保证稳定性。
+- `ListSortField` 为空时默认按 `CreatedAt desc -> _id desc` 排序。
+- 索引初始化支持 `DocumentIndexMetadata`：`MappingJson`、`Settings`、`Aliases`。
 
 ## DI 注册
 
-使用扩展方法：
-
 - `AddElasticsearchDocumentStoreRegistration<TReadModel, TKey>(...)`
 
 关键参数：
 
 - `optionsFactory`：绑定 `Projection:Document:Providers:Elasticsearch:*` 配置。
-- `indexScopeFactory`：由 `IProjectionDocumentMetadataProvider<TReadModel>` 派生索引名。
+- `metadataFactory`：通常由 `IProjectionDocumentMetadataResolver` 解析 `IProjectionDocumentMetadataProvider<TReadModel>`。
 - `keySelector/keyFormatter`：ReadModel 主键映射。
-- `providerName`：默认 `Elasticsearch`（与 `ProjectionProviderNames.Elasticsearch` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
index 327716c4b..b97052df4 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
@@ -13,6 +13,7 @@ public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
       IDisposable
     where TReadModel : class
 {
+    private const string ProviderName = "Elasticsearch";
     private const string DefaultListPrimarySortField = "CreatedAt";
     private const string DefaultListTiebreakSortField = "_id";
 
@@ -25,7 +26,7 @@ public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
     private readonly string _listSortField;
     private readonly ElasticsearchMissingIndexBehavior _missingIndexBehavior;
     private readonly int _mutateMaxRetryCount;
-    private readonly string _providerName;
+    private readonly DocumentIndexMetadata _indexMetadata;
     private readonly ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>> _logger;
     private readonly SemaphoreSlim _indexInitializationLock = new(1, 1);
     private readonly JsonSerializerOptions _jsonOptions = new()
@@ -36,10 +37,9 @@ public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
 
     public ElasticsearchProjectionReadModelStore(
         ElasticsearchProjectionReadModelStoreOptions options,
-        string indexScope,
+        DocumentIndexMetadata indexMetadata,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
-        string providerName = ProjectionProviderNames.Elasticsearch,
         ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>? logger = null,
         HttpMessageHandler? httpMessageHandler = null)
     {
@@ -60,18 +60,16 @@ public ElasticsearchProjectionReadModelStore(
             _httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", token);
         }
 
-        var normalizedScope = NormalizeToken(indexScope);
+        var normalizedMetadata = NormalizeMetadata(indexMetadata);
+        var normalizedScope = NormalizeToken(normalizedMetadata.IndexName);
         if (normalizedScope.Length == 0)
             normalizedScope = "readmodel";
-
         _indexName = BuildIndexName(options.IndexPrefix, normalizedScope);
         _listTakeMax = options.ListTakeMax > 0 ? options.ListTakeMax : 200;
         _autoCreateIndex = options.AutoCreateIndex;
         _missingIndexBehavior = options.MissingIndexBehavior;
         _mutateMaxRetryCount = Math.Clamp(options.MutateMaxRetryCount, 0, 20);
-        _providerName = string.IsNullOrWhiteSpace(providerName)
-            ? ProjectionProviderNames.Elasticsearch
-            : providerName.Trim();
+        _indexMetadata = normalizedMetadata with { IndexName = _indexName };
         _keySelector = keySelector;
         _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
         _listSortField = options.ListSortField?.Trim() ?? "";
@@ -127,8 +125,8 @@ await UpsertCoreAsync(
             {
                 _logger.LogWarning(
                     ex,
-                    "Projection read-model optimistic concurrency conflict. provider={Provider} readModelType={ReadModelType} key={Key} attempt={Attempt}/{MaxAttempts}",
-                    _providerName,
+                "Projection read-model optimistic concurrency conflict. provider={Provider} readModelType={ReadModelType} key={Key} attempt={Attempt}/{MaxAttempts}",
+                    ProviderName,
                     typeof(TReadModel).FullName,
                     keyValue,
                     attempt + 1,
@@ -283,7 +281,7 @@ private async Task UpsertCoreAsync(
             var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
             _logger.LogInformation(
                 "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
-                _providerName,
+                ProviderName,
                 typeof(TReadModel).FullName,
                 keyValue,
                 elapsedMs,
@@ -319,7 +317,7 @@ private bool TryHandleMissingIndexForRead(string operation, string payload)
 
         _logger.LogWarning(
             "Projection read-model index is missing. provider={Provider} readModelType={ReadModelType} index={Index} operation={Operation} behavior={Behavior}",
-            _providerName,
+            ProviderName,
             typeof(TReadModel).FullName,
             _indexName,
             operation,
@@ -349,7 +347,7 @@ private void LogWriteFailure(
         _logger.LogError(
             ex,
             "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-            _providerName,
+            ProviderName,
             typeof(TReadModel).FullName,
             keyValue,
             elapsedMs,
@@ -456,9 +454,10 @@ private async Task EnsureIndexAsync(CancellationToken ct)
             if (_indexInitialized)
                 return;
 
+            var payload = BuildIndexInitializationPayload();
             using var request = new HttpRequestMessage(HttpMethod.Put, _indexName)
             {
-                Content = new StringContent("{\"mappings\":{\"dynamic\":true}}", Encoding.UTF8, "application/json"),
+                Content = new StringContent(payload, Encoding.UTF8, "application/json"),
             };
             using var response = await _httpClient.SendAsync(request, ct);
             if (response.IsSuccessStatusCode)
@@ -467,16 +466,16 @@ private async Task EnsureIndexAsync(CancellationToken ct)
                 return;
             }
 
-            var payload = await response.Content.ReadAsStringAsync(ct);
+            var responsePayload = await response.Content.ReadAsStringAsync(ct);
             if (response.StatusCode == HttpStatusCode.BadRequest &&
-                payload.Contains("resource_already_exists_exception", StringComparison.OrdinalIgnoreCase))
+                responsePayload.Contains("resource_already_exists_exception", StringComparison.OrdinalIgnoreCase))
             {
                 _indexInitialized = true;
                 return;
             }
 
             throw new InvalidOperationException(
-                $"Elasticsearch index initialization failed for '{_indexName}': {(int)response.StatusCode} {response.ReasonPhrase}. body={payload}");
+                $"Elasticsearch index initialization failed for '{_indexName}': {(int)response.StatusCode} {response.ReasonPhrase}. body={responsePayload}");
         }
         finally
         {
@@ -484,6 +483,74 @@ private async Task EnsureIndexAsync(CancellationToken ct)
         }
     }
 
+    private string BuildIndexInitializationPayload()
+    {
+        object mappings = new { dynamic = true };
+        if (!string.IsNullOrWhiteSpace(_indexMetadata.MappingJson))
+            mappings = ParseJsonObject(_indexMetadata.MappingJson, "DocumentIndexMetadata.MappingJson");
+
+        var root = new Dictionary<string, object?>
+        {
+            ["mappings"] = mappings,
+        };
+
+        if (_indexMetadata.Settings.Count > 0)
+            root["settings"] = _indexMetadata.Settings;
+        if (_indexMetadata.Aliases.Count > 0)
+            root["aliases"] = BuildAliasPayload(_indexMetadata.Aliases);
+
+        return JsonSerializer.Serialize(root, _jsonOptions);
+    }
+
+    private static DocumentIndexMetadata NormalizeMetadata(DocumentIndexMetadata metadata)
+    {
+        ArgumentNullException.ThrowIfNull(metadata);
+        return new DocumentIndexMetadata(
+            metadata.IndexName?.Trim() ?? "",
+            metadata.MappingJson?.Trim() ?? "{}",
+            new Dictionary<string, string>(metadata.Settings, StringComparer.Ordinal),
+            new Dictionary<string, string>(metadata.Aliases, StringComparer.Ordinal));
+    }
+
+    private static IReadOnlyDictionary<string, object> BuildAliasPayload(
+        IReadOnlyDictionary<string, string> aliases)
+    {
+        var payload = new Dictionary<string, object>(StringComparer.Ordinal);
+        foreach (var alias in aliases)
+        {
+            var aliasName = alias.Key?.Trim() ?? "";
+            if (aliasName.Length == 0)
+                continue;
+
+            var aliasConfig = alias.Value?.Trim() ?? "";
+            payload[aliasName] = aliasConfig.Length == 0
+                ? new Dictionary<string, object>(StringComparer.Ordinal)
+                : ParseJsonObject(aliasConfig, $"DocumentIndexMetadata.Aliases['{aliasName}']");
+        }
+
+        return payload;
+    }
+
+    private static object ParseJsonObject(string payload, string context)
+    {
+        try
+        {
+            using var json = JsonDocument.Parse(payload);
+            if (json.RootElement.ValueKind != JsonValueKind.Object)
+            {
+                throw new InvalidOperationException(
+                    $"{context} must be a JSON object. actualKind={json.RootElement.ValueKind}");
+            }
+
+            return JsonSerializer.Deserialize<Dictionary<string, object?>>(
+                json.RootElement.GetRawText()) ?? new Dictionary<string, object?>(StringComparer.Ordinal);
+        }
+        catch (Exception ex) when (ex is JsonException or NotSupportedException)
+        {
+            throw new InvalidOperationException($"{context} is invalid JSON object: {ex.Message}", ex);
+        }
+    }
+
     private static async Task EnsureSuccessAsync(
         HttpResponseMessage response,
         string operation,
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index b170a5131..90ce52acb 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -11,34 +11,31 @@ public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
         Func<TReadModel, object?>? listSortSelector = null,
-        int listTakeMax = 200,
-        string providerName = ProjectionProviderNames.InMemory)
+        int listTakeMax = 200)
         where TReadModel : class
     {
         ArgumentNullException.ThrowIfNull(keySelector);
 
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
-                providerName,
+                "InMemory",
                 provider => new InMemoryProjectionReadModelStore<TReadModel, TKey>(
                     keySelector,
                     keyFormatter,
                     listSortSelector,
                     listTakeMax,
-                    providerName,
                     provider.GetService<ILogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>>())));
 
         return services;
     }
 
     public static IServiceCollection AddInMemoryGraphStoreRegistration(
-        this IServiceCollection services,
-        string providerName = ProjectionProviderNames.InMemory)
+        this IServiceCollection services)
     {
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                providerName,
-                _ => new InMemoryProjectionGraphStore(providerName)));
+                "InMemory",
+                _ => new InMemoryProjectionGraphStore()));
 
         return services;
     }
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
index 7b13de9d8..c1705238d 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
@@ -4,20 +4,16 @@
 
 - 不依赖业务域模型。
 - 支持按 keySelector 注册任意 `IDocumentProjectionStore<TReadModel, TKey>`（Document）。
-- 支持关系图存储注册（Graph）。
-- 默认能力：Document 索引 / Graph 索引（仅用于开发和测试语义）。
-- 写入路径输出结构化日志：`provider/readModelType/key/elapsedMs/result/errorType`。
+- 支持图存储注册（Graph）。
+- 仅用于开发和测试语义，不作为生产事实源。
 
 ## DI 注册
 
-使用扩展方法：
-
 - `AddInMemoryDocumentStoreRegistration<TReadModel, TKey>(...)`
-- `AddInMemoryGraphStoreRegistration(...)`
+- `AddInMemoryGraphStoreRegistration()`
 
 关键参数：
 
 - `keySelector/keyFormatter`：ReadModel 主键映射。
 - `listSortSelector`：`ListAsync` 排序字段（可选）。
 - `listTakeMax`：`ListAsync` 硬上限。
-- `providerName`：默认 `InMemory`（与 `ProjectionProviderNames.InMemory` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
index 8e12a4f4e..bb05510f4 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
@@ -10,10 +10,8 @@ public sealed class InMemoryProjectionGraphStore
     private readonly Dictionary<string, ProjectionGraphEdge> _edges = new(StringComparer.Ordinal);
     private readonly JsonSerializerOptions _jsonOptions = new();
 
-    public InMemoryProjectionGraphStore(
-        string providerName = ProjectionProviderNames.InMemory)
+    public InMemoryProjectionGraphStore()
     {
-        _ = providerName;
     }
 
     public Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
index 617a1db1a..0e8e9ae79 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
@@ -8,13 +8,13 @@ public sealed class InMemoryProjectionReadModelStore<TReadModel, TKey>
     : IDocumentProjectionStore<TReadModel, TKey>
     where TReadModel : class
 {
+    private const string ProviderName = "InMemory";
     private readonly object _gate = new();
     private readonly Dictionary<string, TReadModel> _itemsByKey = new(StringComparer.Ordinal);
     private readonly Func<TReadModel, TKey> _keySelector;
     private readonly Func<TKey, string> _keyFormatter;
     private readonly Func<TReadModel, object?>? _listSortSelector;
     private readonly int _listTakeMax;
-    private readonly string _providerName;
     private readonly ILogger<InMemoryProjectionReadModelStore<TReadModel, TKey>> _logger;
     private readonly JsonSerializerOptions _jsonOptions = new();
 
@@ -23,7 +23,6 @@ public InMemoryProjectionReadModelStore(
         Func<TKey, string>? keyFormatter = null,
         Func<TReadModel, object?>? listSortSelector = null,
         int listTakeMax = 200,
-        string providerName = ProjectionProviderNames.InMemory,
         ILogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>? logger = null)
     {
         ArgumentNullException.ThrowIfNull(keySelector);
@@ -31,9 +30,6 @@ public InMemoryProjectionReadModelStore(
         _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
         _listSortSelector = listSortSelector;
         _listTakeMax = listTakeMax > 0 ? listTakeMax : 200;
-        _providerName = string.IsNullOrWhiteSpace(providerName)
-            ? ProjectionProviderNames.InMemory
-            : providerName.Trim();
         _logger = logger ?? NullLogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>.Instance;
     }
 
@@ -53,7 +49,7 @@ public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
             var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
             _logger.LogInformation(
                 "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
-                _providerName,
+                ProviderName,
                 typeof(TReadModel).FullName,
                 key,
                 elapsedMs,
@@ -66,7 +62,7 @@ public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
             _logger.LogError(
                 ex,
                 "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-                _providerName,
+                ProviderName,
                 typeof(TReadModel).FullName,
                 key,
                 elapsedMs,
@@ -97,7 +93,7 @@ public Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken c
             var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
             _logger.LogInformation(
                 "Projection read-model write completed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result}",
-                _providerName,
+                ProviderName,
                 typeof(TReadModel).FullName,
                 keyValue,
                 elapsedMs,
@@ -110,7 +106,7 @@ public Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken c
             _logger.LogError(
                 ex,
                 "Projection read-model write failed. provider={Provider} readModelType={ReadModelType} key={Key} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-                _providerName,
+                ProviderName,
                 typeof(TReadModel).FullName,
                 keyValue,
                 elapsedMs,
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index 7df415610..2ffa1cfa9 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -10,19 +10,17 @@ public static class ServiceCollectionExtensions
     public static IServiceCollection AddNeo4jGraphStoreRegistration(
         this IServiceCollection services,
         Func<IServiceProvider, Neo4jProjectionGraphStoreOptions> optionsFactory,
-        Func<IServiceProvider, string> scopeFactory,
-        string providerName = ProjectionProviderNames.Neo4j)
+        Func<IServiceProvider, string> scopeFactory)
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
         ArgumentNullException.ThrowIfNull(scopeFactory);
 
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                providerName,
+                "Neo4j",
                 provider => new Neo4jProjectionGraphStore(
                     optionsFactory(provider),
                     scopeFactory(provider),
-                    providerName,
                     provider.GetService<ILogger<Neo4jProjectionGraphStore>>())));
 
         return services;
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
index 32ba7b540..14969cdb2 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
@@ -4,18 +4,14 @@
 
 - 不依赖任何业务域 read model。
 - 通过 `IProjectionStoreRegistration<IProjectionGraphStore>` 与上层模块解耦集成（Graph）。
-- 能力声明：Graph schema validation。
 - 基于官方 `Neo4j.Driver` 实现连接与会话管理。
-- 写入路径输出结构化日志：`provider/scope/nodeId-or-edgeId/elapsedMs/result/errorType`。
+- 支持 schema 约束初始化、邻居查询、子图遍历。
 
 ## DI 注册
 
-使用扩展方法：
-
 - `AddNeo4jGraphStoreRegistration(...)`
 
 关键参数：
 
 - `optionsFactory`：绑定 `Projection:Graph:Providers:Neo4j:*` 配置。
 - `scopeFactory`：graph scope 提供器。
-- `providerName`：默认 `Neo4j`（与 `ProjectionProviderNames.Neo4j` 一致）。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
index 45de9a5bb..ec84ea055 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
@@ -10,6 +10,7 @@ public sealed class Neo4jProjectionGraphStore
     : IProjectionGraphStore,
       IAsyncDisposable
 {
+    private const string ProviderName = "Neo4j";
     private readonly IDriver _driver;
     private readonly string _scope;
     private readonly string _database;
@@ -17,7 +18,6 @@ public sealed class Neo4jProjectionGraphStore
     private readonly string _edgeType;
     private readonly bool _autoCreateConstraints;
     private readonly int _maxTraversalDepth;
-    private readonly string _providerName;
     private readonly ILogger<Neo4jProjectionGraphStore> _logger;
     private readonly SemaphoreSlim _schemaLock = new(1, 1);
     private readonly JsonSerializerOptions _jsonOptions = new()
@@ -29,7 +29,6 @@ public sealed class Neo4jProjectionGraphStore
     public Neo4jProjectionGraphStore(
         Neo4jProjectionGraphStoreOptions options,
         string scope,
-        string providerName = ProjectionProviderNames.Neo4j,
         ILogger<Neo4jProjectionGraphStore>? logger = null)
     {
         ArgumentNullException.ThrowIfNull(options);
@@ -41,9 +40,6 @@ public Neo4jProjectionGraphStore(
         _edgeType = NormalizeLabel(options.EdgeType, "PROJECTION_REL");
         _autoCreateConstraints = options.AutoCreateConstraints;
         _maxTraversalDepth = Math.Clamp(options.MaxTraversalDepth, 1, 8);
-        _providerName = string.IsNullOrWhiteSpace(providerName)
-            ? ProjectionProviderNames.Neo4j
-            : providerName.Trim();
         _logger = logger ?? NullLogger<Neo4jProjectionGraphStore>.Instance;
 
         var auth = string.IsNullOrWhiteSpace(options.Username)
@@ -479,7 +475,7 @@ private Dictionary<string, string> DeserializeProperties(string payload)
             _logger.LogWarning(
                 ex,
                 "Failed to deserialize graph edge properties payload. provider={Provider} scope={Scope}",
-                _providerName,
+                ProviderName,
                 _scope);
             return new Dictionary<string, string>(StringComparer.Ordinal);
         }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs
deleted file mode 100644
index 798f093be..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Documents/ProjectionDocumentRuntimeOptions.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public sealed class ProjectionDocumentRuntimeOptions
-{
-    public string ProviderName { get; set; } = ProjectionProviderNames.InMemory;
-
-    public bool FailFastOnStartup { get; set; } = true;
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
deleted file mode 100644
index 3bf71bf3d..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/IProjectionGraphStoreFactory.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionGraphStoreFactory
-{
-    IProjectionGraphStore Create(
-        IServiceProvider serviceProvider,
-        string? requestedProviderName = null);
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs
deleted file mode 100644
index f2be02012..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphRuntimeOptions.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public sealed class ProjectionGraphRuntimeOptions
-{
-    public string ProviderName { get; set; } = ProjectionProviderNames.InMemory;
-
-    public bool FailFastOnStartup { get; set; } = true;
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
deleted file mode 100644
index 72c4d0b4e..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentStoreFactory.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionDocumentStoreFactory
-{
-    IDocumentProjectionStore<TReadModel, TKey> Create<TReadModel, TKey>(
-        IServiceProvider serviceProvider,
-        string? requestedProviderName = null)
-        where TReadModel : class;
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderNames.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderNames.cs
deleted file mode 100644
index 85689dd09..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/ProjectionProviderNames.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public static class ProjectionProviderNames
-{
-    public const string InMemory = "InMemory";
-
-    public const string Elasticsearch = "Elasticsearch";
-
-    public const string Neo4j = "Neo4j";
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
deleted file mode 100644
index 0e567521a..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/ProjectionProviderSelectionException.cs
+++ /dev/null
@@ -1,37 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public sealed class ProjectionProviderSelectionException : InvalidOperationException
-{
-    public ProjectionProviderSelectionException(
-        Type readModelType,
-        string requestedProviderName,
-        IReadOnlyList<string> availableProviders,
-        string reason)
-        : base(BuildMessage(readModelType, requestedProviderName, availableProviders, reason))
-    {
-        ReadModelType = readModelType;
-        RequestedProviderName = requestedProviderName;
-        AvailableProviders = availableProviders;
-        Reason = reason;
-    }
-
-    public Type ReadModelType { get; }
-
-    public string RequestedProviderName { get; }
-
-    public IReadOnlyList<string> AvailableProviders { get; }
-
-    public string Reason { get; }
-
-    private static string BuildMessage(
-        Type readModelType,
-        string requestedProviderName,
-        IReadOnlyList<string> availableProviders,
-        string reason)
-    {
-        var requested = requestedProviderName.Length == 0 ? "<unspecified>" : requestedProviderName;
-        var available = availableProviders.Count == 0 ? "<none>" : string.Join(", ", availableProviders);
-        return $"Provider selection failed for read-model '{readModelType.FullName}'. " +
-               $"requested={requested}; available={available}; reason={reason}.";
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
index 68f38c3d9..3c681b8be 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
@@ -4,22 +4,18 @@
 
 ## 目录结构
 
-- `Abstractions/Core`：Provider 注册契约（`IProjectionStoreRegistration<TStore>`）
-- `Abstractions/Documents`：Document runtime options
-- `Abstractions/ReadModels`：Document store factory、metadata resolver、provider names
-- `Abstractions/Graphs`：Graph runtime options、graph store factory 契约
+- `Abstractions/Core`：Store 注册契约（`IProjectionStoreRegistration<TStore>`）
+- `Abstractions/ReadModels`：Document metadata resolver
 - `Abstractions/Selection`：Materialization 路由与 graph materializer 契约
 
 ## 关键契约
 
-- Provider 注册：`IProjectionStoreRegistration<TStore>`
-- Document 运行时：`ProjectionDocumentRuntimeOptions`
-- Graph 运行时：`ProjectionGraphRuntimeOptions`
-- Store factory：`IProjectionDocumentStoreFactory`、`IProjectionGraphStoreFactory`
+- Store 注册：`IProjectionStoreRegistration<TStore>`
 - Materialization：`IProjectionMaterializationRouter<TReadModel, TKey>`、`IProjectionGraphMaterializer<TReadModel>`
+- Metadata：`IProjectionDocumentMetadataResolver`
 
 ## 约束
 
-1. 不包含能力协商模型（Capabilities/Requirements/CapabilityValidator）。
-2. Provider 选择语义为显式 providerName + fail-fast，不做自动降级。
+1. 不包含 ProviderName 选择与 RuntimeOptions。
+2. 不包含能力协商模型（Capabilities/Requirements/CapabilityValidator）。
 3. 仅依赖 `Aevatar.CQRS.Projection.Stores.Abstractions`。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index d556dd65f..909929674 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -8,8 +8,8 @@ public static class ServiceCollectionExtensions
 {
     public static IServiceCollection AddProjectionReadModelRuntime(this IServiceCollection services)
     {
-        services.TryAddSingleton<IProjectionDocumentStoreFactory, ProjectionDocumentStoreFactory>();
-        services.TryAddSingleton<IProjectionGraphStoreFactory, ProjectionGraphStoreFactory>();
+        services.TryAddSingleton(typeof(IDocumentProjectionStore<,>), typeof(ProjectionDocumentStoreFanout<,>));
+        services.TryAddSingleton<IProjectionGraphStore, ProjectionGraphStoreFanout>();
         services.TryAddSingleton(typeof(IProjectionGraphMaterializer<>), typeof(ProjectionGraphMaterializer<>));
         services.TryAddSingleton(typeof(IProjectionMaterializationRouter<,>), typeof(ProjectionMaterializationRouter<,>));
         services.TryAddSingleton<IProjectionDocumentMetadataResolver, ProjectionDocumentMetadataResolver>();
diff --git a/src/Aevatar.CQRS.Projection.Runtime/README.md b/src/Aevatar.CQRS.Projection.Runtime/README.md
index 29c57c22a..12e228d3f 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime/README.md
@@ -4,17 +4,27 @@
 
 ## 职责
 
-- Store 创建与 provider 选择（内聚在 factory）：`IProjectionDocumentStoreFactory`、`IProjectionGraphStoreFactory`
-- Store 创建日志与 fail-fast 错误：`ProjectionProviderSelectionException`
+- Store Fan-out 组合：
+  - `ProjectionDocumentStoreFanout<TReadModel, TKey>`
+  - `ProjectionGraphStoreFanout`
 - Materialization 路由：`IProjectionMaterializationRouter<TReadModel, TKey>`、`ProjectionGraphMaterializer<TReadModel>`
+- Document metadata 解析：`IProjectionDocumentMetadataResolver`
 
 ## DI 入口
 
 - `services.AddProjectionReadModelRuntime()`
 
+默认注册：
+
+- `IDocumentProjectionStore<,>` -> `ProjectionDocumentStoreFanout<,>`
+- `IProjectionGraphStore` -> `ProjectionGraphStoreFanout`
+- `IProjectionGraphMaterializer<>`
+- `IProjectionMaterializationRouter<,>`
+- `IProjectionDocumentMetadataResolver`
+
 ## 设计约束
 
 1. 不承载业务 ReadModel 类型。
-2. 不实现能力协商，不依赖 Capabilities/Requirements 模型。
-3. Provider 选择规则：`providerName` 精确匹配；无注册、多注册无明确 provider、provider 不存在都立即失败。
+2. 不做 providerName 单选，不存在运行时降级逻辑。
+3. Document 与 Graph 完全解耦，分别按注册列表一对多分发。
 4. 仅依赖抽象契约与 DI；具体 Provider 由上层注册。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
deleted file mode 100644
index 00a68af04..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFactory.cs
+++ /dev/null
@@ -1,63 +0,0 @@
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Logging.Abstractions;
-
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionDocumentStoreFactory
-    : IProjectionDocumentStoreFactory
-{
-    private readonly ILogger<ProjectionDocumentStoreFactory> _logger;
-
-    public ProjectionDocumentStoreFactory(
-        ILogger<ProjectionDocumentStoreFactory>? logger = null)
-    {
-        _logger = logger ?? NullLogger<ProjectionDocumentStoreFactory>.Instance;
-    }
-
-    public IDocumentProjectionStore<TReadModel, TKey> Create<TReadModel, TKey>(
-        IServiceProvider serviceProvider,
-        string? requestedProviderName = null)
-        where TReadModel : class
-    {
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-
-        var registrations = serviceProvider
-            .GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>()
-            .ToList();
-        var selected = ProjectionStoreRegistrationSelector.Select(
-            registrations,
-            requestedProviderName,
-            typeof(TReadModel),
-            noRegistrationsReason: "No document store provider registrations were found.",
-            multipleRegistrationsReason: "Multiple document store providers are registered but no explicit provider was requested.",
-            providerNotRegisteredReason: "Requested document store provider is not registered.");
-
-        var startedAt = DateTimeOffset.UtcNow;
-        try
-        {
-            var store = selected.Create(serviceProvider);
-            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
-            _logger.LogInformation(
-                "Projection document store created. provider={Provider} readModelType={ReadModelType} elapsedMs={ElapsedMs} result={Result}",
-                selected.ProviderName,
-                typeof(TReadModel).FullName,
-                elapsedMs,
-                "ok");
-            return store;
-        }
-        catch (Exception ex)
-        {
-            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
-            _logger.LogError(
-                ex,
-                "Projection document store creation failed. provider={Provider} readModelType={ReadModelType} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-                selected.ProviderName,
-                typeof(TReadModel).FullName,
-                elapsedMs,
-                "failed",
-                ex.GetType().Name);
-            throw;
-        }
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
new file mode 100644
index 000000000..5b9cf2c38
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
@@ -0,0 +1,85 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionDocumentStoreFanout<TReadModel, TKey>
+    : IDocumentProjectionStore<TReadModel, TKey>
+    where TReadModel : class
+{
+    private readonly IReadOnlyList<IDocumentProjectionStore<TReadModel, TKey>> _stores;
+    private readonly IDocumentProjectionStore<TReadModel, TKey> _queryStore;
+    private readonly ILogger<ProjectionDocumentStoreFanout<TReadModel, TKey>> _logger;
+
+    public ProjectionDocumentStoreFanout(
+        IEnumerable<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
+        IServiceProvider serviceProvider,
+        ILogger<ProjectionDocumentStoreFanout<TReadModel, TKey>>? logger = null)
+    {
+        ArgumentNullException.ThrowIfNull(registrations);
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+
+        var registrationList = registrations.ToList();
+        _stores = registrationList
+            .Select(x => x.Create(serviceProvider))
+            .ToList();
+        _logger = logger ?? NullLogger<ProjectionDocumentStoreFanout<TReadModel, TKey>>.Instance;
+
+        if (_stores.Count == 0)
+        {
+            throw new InvalidOperationException(
+                $"No document projection store providers are registered for read model '{typeof(TReadModel).FullName}'.");
+        }
+
+        _queryStore = _stores[0];
+        _logger.LogInformation(
+            "Projection document fan-out initialized. readModelType={ReadModelType} storeCount={StoreCount}",
+            typeof(TReadModel).FullName,
+            _stores.Count);
+    }
+
+    public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(readModel);
+        ct.ThrowIfCancellationRequested();
+
+        foreach (var store in _stores)
+        {
+            ct.ThrowIfCancellationRequested();
+            await store.UpsertAsync(readModel, ct);
+        }
+    }
+
+    public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(mutate);
+        ct.ThrowIfCancellationRequested();
+
+        await _queryStore.MutateAsync(key, mutate, ct);
+        if (_stores.Count == 1)
+            return;
+
+        var updated = await _queryStore.GetAsync(key, ct);
+        if (updated == null)
+        {
+            throw new InvalidOperationException(
+                $"Document fan-out mutate completed but query store returned null for read model '{typeof(TReadModel).FullName}'.");
+        }
+
+        foreach (var store in _stores.Skip(1))
+        {
+            ct.ThrowIfCancellationRequested();
+            await store.UpsertAsync(updated, ct);
+        }
+    }
+
+    public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
+    {
+        return _queryStore.GetAsync(key, ct);
+    }
+
+    public Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
+    {
+        return _queryStore.ListAsync(take, ct);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
deleted file mode 100644
index 855ac6481..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFactory.cs
+++ /dev/null
@@ -1,59 +0,0 @@
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Logging.Abstractions;
-
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionGraphStoreFactory : IProjectionGraphStoreFactory
-{
-    private readonly ILogger<ProjectionGraphStoreFactory> _logger;
-
-    public ProjectionGraphStoreFactory(
-        ILogger<ProjectionGraphStoreFactory>? logger = null)
-    {
-        _logger = logger ?? NullLogger<ProjectionGraphStoreFactory>.Instance;
-    }
-
-    public IProjectionGraphStore Create(
-        IServiceProvider serviceProvider,
-        string? requestedProviderName = null)
-    {
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-
-        var registrations = serviceProvider
-            .GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>()
-            .ToList();
-        var selected = ProjectionStoreRegistrationSelector.Select(
-            registrations,
-            requestedProviderName,
-            typeof(ProjectionGraphNode),
-            noRegistrationsReason: "No relation store provider registrations were found.",
-            multipleRegistrationsReason: "Multiple relation store providers are registered but no explicit provider was requested.",
-            providerNotRegisteredReason: "Requested relation store provider is not registered.");
-
-        var startedAt = DateTimeOffset.UtcNow;
-        try
-        {
-            var store = selected.Create(serviceProvider);
-            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
-            _logger.LogInformation(
-                "Projection relation store created. provider={Provider} elapsedMs={ElapsedMs} result={Result}",
-                selected.ProviderName,
-                elapsedMs,
-                "ok");
-            return store;
-        }
-        catch (Exception ex)
-        {
-            var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
-            _logger.LogError(
-                ex,
-                "Projection relation store creation failed. provider={Provider} elapsedMs={ElapsedMs} result={Result} errorType={ErrorType}",
-                selected.ProviderName,
-                elapsedMs,
-                "failed",
-                ex.GetType().Name);
-            throw;
-        }
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
new file mode 100644
index 000000000..95323359f
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
@@ -0,0 +1,83 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionGraphStoreFanout : IProjectionGraphStore
+{
+    private readonly IReadOnlyList<IProjectionGraphStore> _stores;
+    private readonly IProjectionGraphStore _queryStore;
+    private readonly ILogger<ProjectionGraphStoreFanout> _logger;
+
+    public ProjectionGraphStoreFanout(
+        IEnumerable<IProjectionStoreRegistration<IProjectionGraphStore>> registrations,
+        IServiceProvider serviceProvider,
+        ILogger<ProjectionGraphStoreFanout>? logger = null)
+    {
+        ArgumentNullException.ThrowIfNull(registrations);
+        ArgumentNullException.ThrowIfNull(serviceProvider);
+
+        _stores = registrations
+            .Select(x => x.Create(serviceProvider))
+            .ToList();
+        _logger = logger ?? NullLogger<ProjectionGraphStoreFanout>.Instance;
+
+        if (_stores.Count == 0)
+        {
+            throw new InvalidOperationException(
+                "No graph projection store providers are registered.");
+        }
+
+        _queryStore = _stores[0];
+        _logger.LogInformation(
+            "Projection graph fan-out initialized. storeCount={StoreCount}",
+            _stores.Count);
+    }
+
+    public async Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(node);
+        ct.ThrowIfCancellationRequested();
+
+        foreach (var store in _stores)
+        {
+            ct.ThrowIfCancellationRequested();
+            await store.UpsertNodeAsync(node, ct);
+        }
+    }
+
+    public async Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(edge);
+        ct.ThrowIfCancellationRequested();
+
+        foreach (var store in _stores)
+        {
+            ct.ThrowIfCancellationRequested();
+            await store.UpsertEdgeAsync(edge, ct);
+        }
+    }
+
+    public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
+    {
+        foreach (var store in _stores)
+        {
+            ct.ThrowIfCancellationRequested();
+            await store.DeleteEdgeAsync(scope, edgeId, ct);
+        }
+    }
+
+    public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
+        ProjectionGraphQuery query,
+        CancellationToken ct = default)
+    {
+        return _queryStore.GetNeighborsAsync(query, ct);
+    }
+
+    public Task<ProjectionGraphSubgraph> GetSubgraphAsync(
+        ProjectionGraphQuery query,
+        CancellationToken ct = default)
+    {
+        return _queryStore.GetSubgraphAsync(query, ct);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreRegistrationSelector.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreRegistrationSelector.cs
deleted file mode 100644
index e765e127e..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreRegistrationSelector.cs
+++ /dev/null
@@ -1,52 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-internal static class ProjectionStoreRegistrationSelector
-{
-    public static IProjectionStoreRegistration<TStore> Select<TStore>(
-        IReadOnlyList<IProjectionStoreRegistration<TStore>> registrations,
-        string? requestedProviderName,
-        Type logicalModelType,
-        string noRegistrationsReason,
-        string multipleRegistrationsReason,
-        string providerNotRegisteredReason)
-    {
-        ArgumentNullException.ThrowIfNull(registrations);
-        ArgumentNullException.ThrowIfNull(logicalModelType);
-
-        var requestedName = requestedProviderName?.Trim() ?? "";
-        if (registrations.Count == 0)
-        {
-            throw new ProjectionProviderSelectionException(
-                logicalModelType,
-                requestedName,
-                [],
-                noRegistrationsReason);
-        }
-
-        if (requestedName.Length == 0)
-        {
-            if (registrations.Count == 1)
-                return registrations[0];
-
-            throw new ProjectionProviderSelectionException(
-                logicalModelType,
-                requestedName,
-                registrations.Select(x => x.ProviderName).ToList(),
-                multipleRegistrationsReason);
-        }
-
-        var matched = registrations
-            .FirstOrDefault(x => string.Equals(
-                x.ProviderName,
-                requestedName,
-                StringComparison.OrdinalIgnoreCase));
-        if (matched != null)
-            return matched;
-
-        throw new ProjectionProviderSelectionException(
-            logicalModelType,
-            requestedName,
-            registrations.Select(x => x.ProviderName).ToList(),
-            providerNotRegisteredReason);
-    }
-}
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index d8610d2f9..829ebd6f3 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -7,7 +7,6 @@
 using Aevatar.Workflow.Application.Abstractions.Runs;
 using Aevatar.Foundation.Abstractions.Deduplication;
 using Aevatar.CQRS.Projection.Runtime.DependencyInjection;
-using Aevatar.CQRS.Projection.Runtime.Runtime;
 using Aevatar.CQRS.Projection.Core.DependencyInjection;
 using Aevatar.CQRS.Projection.Core.Orchestration;
 using Aevatar.CQRS.Projection.Core.Streaming;
@@ -37,14 +36,9 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.Replace(ServiceDescriptor.Singleton(options));
         services.TryAddSingleton<IProjectionRuntimeOptions>(sp =>
             sp.GetRequiredService<WorkflowExecutionProjectionOptions>());
-        services.TryAddSingleton<ProjectionDocumentRuntimeOptions>();
-        services.TryAddSingleton<ProjectionGraphRuntimeOptions>();
         services.TryAddSingleton<IEventDeduplicator, PassthroughEventDeduplicator>();
         services.AddProjectionReadModelRuntime();
         services.TryAddSingleton<IProjectionDocumentMetadataProvider<WorkflowExecutionReport>, WorkflowExecutionReportDocumentMetadataProvider>();
-        RegisterWorkflowDocumentStoreSelector(services);
-        RegisterWorkflowGraphStoreSelector(services);
-        RegisterWorkflowMaterializationRouter(services);
         services.TryAddSingleton<IProjectionClock, SystemProjectionClock>();
         services.TryAddSingleton<IWorkflowExecutionProjectionContextFactory, DefaultWorkflowExecutionProjectionContextFactory>();
         services.TryAddSingleton<WorkflowExecutionReadModelMapper>();
@@ -122,38 +116,6 @@ private static void RegisterFromAssembly(IServiceCollection services, Assembly a
             ProjectionProjectorContract);
     }
 
-    private static void RegisterWorkflowDocumentStoreSelector(IServiceCollection services)
-    {
-        services.Replace(ServiceDescriptor.Singleton<IDocumentProjectionStore<WorkflowExecutionReport, string>>(sp =>
-        {
-            var storeFactory = sp.GetRequiredService<IProjectionDocumentStoreFactory>();
-            var runtimeOptions = sp.GetRequiredService<ProjectionDocumentRuntimeOptions>();
-            return storeFactory.Create<WorkflowExecutionReport, string>(
-                sp,
-                runtimeOptions.ProviderName);
-        }));
-    }
-
-    private static void RegisterWorkflowGraphStoreSelector(IServiceCollection services)
-    {
-        services.Replace(ServiceDescriptor.Singleton<IProjectionGraphStore>(sp =>
-        {
-            var graphStoreFactory = sp.GetRequiredService<IProjectionGraphStoreFactory>();
-            var runtimeOptions = sp.GetRequiredService<ProjectionGraphRuntimeOptions>();
-            return graphStoreFactory.Create(
-                sp,
-                runtimeOptions.ProviderName);
-        }));
-    }
-
-    private static void RegisterWorkflowMaterializationRouter(IServiceCollection services)
-    {
-        services.Replace(ServiceDescriptor.Singleton<IProjectionMaterializationRouter<WorkflowExecutionReport, string>>(sp =>
-            new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
-                sp.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>(),
-                sp.GetRequiredService<IProjectionGraphMaterializer<WorkflowExecutionReport>>())));
-    }
-
     private sealed class PassthroughEventDeduplicator : IEventDeduplicator
     {
         public Task<bool> TryRecordAsync(string eventId)
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index 305f09d50..fc92a9c8c 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -1,6 +1,7 @@
 using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Workflow.Projection.Configuration;
 using Aevatar.Workflow.Projection.ReadModels;
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
@@ -11,27 +12,15 @@ internal sealed class WorkflowReadModelStartupValidationHostedService : IHostedS
 {
     private readonly IServiceProvider _serviceProvider;
     private readonly WorkflowExecutionProjectionOptions _options;
-    private readonly ProjectionDocumentRuntimeOptions _documentRuntimeOptions;
-    private readonly ProjectionGraphRuntimeOptions _graphRuntimeOptions;
-    private readonly IProjectionDocumentStoreFactory _documentStoreFactory;
-    private readonly IProjectionGraphStoreFactory _graphStoreFactory;
     private readonly ILogger<WorkflowReadModelStartupValidationHostedService> _logger;
 
     public WorkflowReadModelStartupValidationHostedService(
         IServiceProvider serviceProvider,
         WorkflowExecutionProjectionOptions options,
-        ProjectionDocumentRuntimeOptions documentRuntimeOptions,
-        ProjectionGraphRuntimeOptions graphRuntimeOptions,
-        IProjectionDocumentStoreFactory documentStoreFactory,
-        IProjectionGraphStoreFactory graphStoreFactory,
         ILogger<WorkflowReadModelStartupValidationHostedService>? logger = null)
     {
         _serviceProvider = serviceProvider;
         _options = options;
-        _documentRuntimeOptions = documentRuntimeOptions;
-        _graphRuntimeOptions = graphRuntimeOptions;
-        _documentStoreFactory = documentStoreFactory;
-        _graphStoreFactory = graphStoreFactory;
         _logger = logger ?? NullLogger<WorkflowReadModelStartupValidationHostedService>.Instance;
     }
 
@@ -41,26 +30,20 @@ public Task StartAsync(CancellationToken cancellationToken)
         if (!_options.Enabled)
             return Task.CompletedTask;
 
-        if (_options.ValidateDocumentProviderOnStartup && _documentRuntimeOptions.FailFastOnStartup)
+        if (_options.ValidateDocumentProviderOnStartup)
         {
-            _documentStoreFactory.Create<WorkflowExecutionReport, string>(
-                _serviceProvider,
-                _documentRuntimeOptions.ProviderName);
+            _ = _serviceProvider.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>();
             _logger.LogInformation(
-                "Workflow read-model provider startup validation passed. readModelType={ReadModelType} provider={Provider}",
-                typeof(WorkflowExecutionReport).FullName,
-                _documentRuntimeOptions.ProviderName);
+                "Workflow read-model document startup validation passed. readModelType={ReadModelType}",
+                typeof(WorkflowExecutionReport).FullName);
         }
 
-        if (_options.ValidateGraphProviderOnStartup && _graphRuntimeOptions.FailFastOnStartup)
+        if (_options.ValidateGraphProviderOnStartup)
         {
-            _graphStoreFactory.Create(
-                _serviceProvider,
-                _graphRuntimeOptions.ProviderName);
+            _ = _serviceProvider.GetRequiredService<IProjectionGraphStore>();
             _logger.LogInformation(
-                "Workflow graph provider startup validation passed. graphType={GraphType} provider={Provider}",
-                typeof(ProjectionGraphNode).FullName,
-                _graphRuntimeOptions.ProviderName);
+                "Workflow read-model graph startup validation passed. graphType={GraphType}",
+                typeof(ProjectionGraphNode).FullName);
         }
         return Task.CompletedTask;
     }
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index 96fa2f5ac..cb08036f6 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -18,19 +18,19 @@
   - `WorkflowProjectionSinkFailurePolicy`（sink 异常策略）
   - `WorkflowProjectionReadModelUpdater`（read model 元信息更新）
   - `WorkflowProjectionQueryReader`（query 映射读取）
-  - Store 选择采用显式 providerName（Document/Graph 分离）
+  - Store Fan-out：Document/Graph 分别一对多广播（无 providerName 单选）
 - 领域上下文：`IWorkflowExecutionProjectionContextFactory`、`WorkflowExecutionProjectionContext`
 - 实时输出契约：`WorkflowRunEvent`、`IWorkflowRunEventSink`、`WorkflowRunEventChannel`（定义于 `Aevatar.Workflow.Application.Abstractions`）
 - 领域投影实现：reducers、projectors、read model（不包含 Provider Store 实现）
 - 领域 DI 组合：`AddWorkflowExecutionProjectionCQRS(...)`
 - Provider 启动校验：由 `WorkflowReadModelStartupValidationHostedService` 执行 Document/Graph 两条独立 fail-fast 校验
-- ReadModel 选择规则：DI store 解析与 Startup validation 统一复用 Document/Graph runtime options（`ProjectionDocumentRuntimeOptions`、`ProjectionGraphRuntimeOptions`）
+- ReadModel 存储解析规则：运行时通过 `ProjectionDocumentStoreFanout<,>` / `ProjectionGraphStoreFanout` 聚合已注册 Provider
 
 本项目依赖：
 
 - `Aevatar.CQRS.Projection.Core.Abstractions`（投影管线/端口抽象）
 - `Aevatar.CQRS.Projection.Stores.Abstractions`（Document/Graph 存储契约）
-- `Aevatar.CQRS.Projection.Runtime.Abstractions`（Provider 选择与 materialization 编排契约）
+- `Aevatar.CQRS.Projection.Runtime.Abstractions`（Store 注册与 materialization 编排契约）
 - `Aevatar.CQRS.Projection.Core`（通用生命周期/订阅/协调实现）
 - `Aevatar.Foundation.Projection`（最小 read model 基类与读侧能力接口）
 - `Aevatar.Workflow.Extensions.AIProjection`（可选扩展：组合 `Aevatar.AI.Projection` 的通用 reducer/applier）
@@ -90,14 +90,17 @@ FAQ：
 
 ## Provider 配置
 
-- Provider 选择统一配置入口：
-  - `Projection:Document:Provider`：`InMemory`（默认）/`Elasticsearch`
-  - `Projection:Graph:Provider`：`InMemory`（默认）/`Neo4j`
-- `Projection:Policies:DenyInMemoryGraphFactStore`：禁用 InMemory graph 作为事实源（生产建议开启）
+- 不再支持 `Projection:Document:Provider` / `Projection:Graph:Provider` 单选模型。
+- 使用一对多启用开关模型：
+  - `Projection:Document:Providers:InMemory:Enabled`
+  - `Projection:Document:Providers:Elasticsearch:Enabled`
+  - `Projection:Graph:Providers:InMemory:Enabled`
+  - `Projection:Graph:Providers:Neo4j:Enabled`
 - 文档 Provider 配置：
-  - `Projection:Document:Providers:Elasticsearch:*`
+  - `Projection:Document:Providers:Elasticsearch:*`（至少配置 `Endpoints`）
 - 图 Provider 配置：
-  - `Projection:Graph:Providers:Neo4j:*`
+  - `Projection:Graph:Providers:Neo4j:*`（至少配置 `Uri`）
+- `Projection:Policies:DenyInMemoryGraphFactStore`：禁用 InMemory graph 作为事实源（生产建议开启）
 - `WorkflowExecutionProjection:ValidateDocumentProviderOnStartup`：启动阶段预校验 document provider（默认 `true`）
 - `WorkflowExecutionProjection:ValidateGraphProviderOnStartup`：启动阶段预校验 graph provider（默认 `true`）
 - 图查询参数：
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index 67ed08d2c..ea0916141 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -4,11 +4,9 @@
 using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
 using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
 using Aevatar.CQRS.Projection.Runtime.Abstractions;
-using Aevatar.CQRS.Projection.Stores.Abstractions;
 using Aevatar.Workflow.Projection.ReadModels;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.DependencyInjection.Extensions;
 
 namespace Aevatar.Workflow.Extensions.Hosting;
 
@@ -24,63 +22,153 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
         if (services.Any(x => x.ServiceType == typeof(WorkflowProjectionProviderRegistrationsMarker)))
             return services;
 
+        EnsureLegacyProviderOptionsNotUsed(configuration);
+
         services.AddSingleton<WorkflowProjectionProviderRegistrationsMarker>();
 
-        var providerSelection = ResolveProviderSelection(configuration);
-        EnforceGraphProviderPolicy(configuration, providerSelection.GraphProvider);
-        var documentRuntimeOptions = new ProjectionDocumentRuntimeOptions
+        var enableElasticsearchDocument = ResolveElasticsearchDocumentEnabled(configuration);
+        var enableNeo4jGraph = ResolveNeo4jGraphEnabled(configuration);
+        var enableInMemoryDocument = ResolveOptionalBool(
+            configuration["Projection:Document:Providers:InMemory:Enabled"],
+            fallbackValue: !enableElasticsearchDocument);
+        var enableInMemoryGraph = ResolveOptionalBool(
+            configuration["Projection:Graph:Providers:InMemory:Enabled"],
+            fallbackValue: !enableNeo4jGraph);
+
+        EnforceGraphProviderPolicy(configuration, enableInMemoryGraph);
+
+        var documentProviderCount = 0;
+        if (enableInMemoryDocument)
         {
-            ProviderName = providerSelection.DocumentProvider,
-            FailFastOnStartup = true,
-        };
-        var graphRuntimeOptions = new ProjectionGraphRuntimeOptions
+            services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
+                keySelector: report => report.RootActorId,
+                keyFormatter: key => key,
+                listSortSelector: report => report.CreatedAt,
+                listTakeMax: 200);
+            documentProviderCount++;
+        }
+
+        if (enableElasticsearchDocument)
         {
-            ProviderName = providerSelection.GraphProvider,
-            FailFastOnStartup = true,
-        };
+            services.AddElasticsearchDocumentStoreRegistration<WorkflowExecutionReport, string>(
+                optionsFactory: _ => BuildElasticsearchDocumentOptions(configuration),
+                metadataFactory: sp =>
+                {
+                    var metadataResolver = sp.GetRequiredService<IProjectionDocumentMetadataResolver>();
+                    return metadataResolver.Resolve<WorkflowExecutionReport>();
+                },
+                keySelector: report => report.RootActorId,
+                keyFormatter: key => key);
+            documentProviderCount++;
+        }
 
-        services.Replace(ServiceDescriptor.Singleton(documentRuntimeOptions));
-        services.Replace(ServiceDescriptor.Singleton(graphRuntimeOptions));
+        var graphProviderCount = 0;
+        if (enableInMemoryGraph)
+        {
+            services.AddInMemoryGraphStoreRegistration();
+            graphProviderCount++;
+        }
 
-        RegisterDocumentProvider(services, configuration, providerSelection.DocumentProvider);
-        RegisterGraphProvider(services, configuration, providerSelection.GraphProvider);
+        if (enableNeo4jGraph)
+        {
+            services.AddNeo4jGraphStoreRegistration(
+                optionsFactory: _ => BuildNeo4jGraphOptions(configuration),
+                scopeFactory: _ => WorkflowExecutionGraphConstants.Scope);
+            graphProviderCount++;
+        }
+
+        if (documentProviderCount == 0)
+        {
+            throw new InvalidOperationException(
+                "No document projection providers are enabled. Configure Projection:Document:Providers:InMemory:Enabled=true or Projection:Document:Providers:Elasticsearch with Endpoints.");
+        }
+
+        if (graphProviderCount == 0)
+        {
+            throw new InvalidOperationException(
+                "No graph projection providers are enabled. Configure Projection:Graph:Providers:InMemory:Enabled=true or Projection:Graph:Providers:Neo4j with Uri.");
+        }
 
         return services;
     }
 
-    private static ProviderSelection ResolveProviderSelection(IConfiguration configuration)
+    private static void EnsureLegacyProviderOptionsNotUsed(IConfiguration configuration)
     {
-        var documentProvider = NormalizeDocumentProvider(
-            configuration["Projection:Document:Provider"],
-            ProjectionProviderNames.InMemory,
-            "Projection:Document:Provider");
+        var legacyDocumentProvider = configuration["Projection:Document:Provider"]?.Trim();
+        var legacyGraphProvider = configuration["Projection:Graph:Provider"]?.Trim();
 
-        var graphProvider = NormalizeGraphProvider(
-            configuration["Projection:Graph:Provider"],
-            ProjectionProviderNames.InMemory,
-            "Projection:Graph:Provider");
+        if (legacyDocumentProvider?.Length > 0 || legacyGraphProvider?.Length > 0)
+        {
+            throw new InvalidOperationException(
+                "Legacy provider single-selection options are no longer supported. " +
+                "Use Projection:Document:Providers:*:Enabled and Projection:Graph:Providers:*:Enabled for one-to-many provider registration.");
+        }
+    }
 
-        return new ProviderSelection(documentProvider, graphProvider);
+    private static bool ResolveElasticsearchDocumentEnabled(IConfiguration configuration)
+    {
+        var section = configuration.GetSection("Projection:Document:Providers:Elasticsearch");
+        var explicitEnabled = section["Enabled"];
+        var hasEndpoints = section
+            .GetSection("Endpoints")
+            .GetChildren()
+            .Select(x => x.Value?.Trim() ?? "")
+            .Any(x => x.Length > 0);
+
+        return ResolveOptionalBool(explicitEnabled, hasEndpoints);
+    }
+
+    private static bool ResolveNeo4jGraphEnabled(IConfiguration configuration)
+    {
+        var section = configuration.GetSection("Projection:Graph:Providers:Neo4j");
+        var explicitEnabled = section["Enabled"];
+        var hasUri = (section["Uri"]?.Trim().Length ?? 0) > 0;
+
+        return ResolveOptionalBool(explicitEnabled, hasUri);
+    }
+
+    private static ElasticsearchProjectionReadModelStoreOptions BuildElasticsearchDocumentOptions(
+        IConfiguration configuration)
+    {
+        var options = new ElasticsearchProjectionReadModelStoreOptions();
+        configuration.GetSection("Projection:Document:Providers:Elasticsearch").Bind(options);
+        if (options.Endpoints.Count == 0)
+        {
+            throw new InvalidOperationException(
+                "Projection:Document:Providers:Elasticsearch is enabled but Endpoints is empty.");
+        }
+
+        return options;
+    }
+
+    private static Neo4jProjectionGraphStoreOptions BuildNeo4jGraphOptions(IConfiguration configuration)
+    {
+        var options = new Neo4jProjectionGraphStoreOptions();
+        configuration.GetSection("Projection:Graph:Providers:Neo4j").Bind(options);
+        if (string.IsNullOrWhiteSpace(options.Uri))
+        {
+            throw new InvalidOperationException(
+                "Projection:Graph:Providers:Neo4j is enabled but Uri is empty.");
+        }
+
+        return options;
     }
 
     private static void EnforceGraphProviderPolicy(
         IConfiguration configuration,
-        string graphProviderName)
+        bool enableInMemoryGraphProvider)
     {
-        var denyInMemoryGraphProvider = ParseBool(
-            configuration["Projection:Policies:DenyInMemoryGraphFactStore"]);
+        var denyInMemoryGraphProvider = ResolveOptionalBool(
+            configuration["Projection:Policies:DenyInMemoryGraphFactStore"],
+            fallbackValue: false);
         var environment = ResolveRuntimeEnvironment(configuration["Projection:Policies:Environment"]);
         var production = IsProductionEnvironment(environment);
 
-        if ((denyInMemoryGraphProvider || production) &&
-            string.Equals(
-                graphProviderName,
-                ProjectionProviderNames.InMemory,
-                StringComparison.OrdinalIgnoreCase))
+        if ((denyInMemoryGraphProvider || production) && enableInMemoryGraphProvider)
         {
             throw new InvalidOperationException(
                 "InMemory graph provider is not allowed by projection policy. " +
-                "Use a durable graph provider (for example Neo4j) for production/distributed deployments.");
+                "Disable Projection:Graph:Providers:InMemory:Enabled and configure Neo4j.");
         }
     }
 
@@ -102,125 +190,16 @@ private static bool IsProductionEnvironment(string environment)
         return string.Equals(environment, "Production", StringComparison.OrdinalIgnoreCase);
     }
 
-    private static bool ParseBool(string? value)
+    private static bool ResolveOptionalBool(string? rawValue, bool fallbackValue)
     {
-        return bool.TryParse(value, out var parsed) && parsed;
-    }
+        if (string.IsNullOrWhiteSpace(rawValue))
+            return fallbackValue;
 
-    private static string NormalizeDocumentProvider(
-        string? configuredValue,
-        string fallbackValue,
-        string optionPath)
-    {
-        var candidate = string.IsNullOrWhiteSpace(configuredValue)
-            ? fallbackValue
-            : configuredValue.Trim();
-
-        if (string.Equals(candidate, ProjectionProviderNames.InMemory, StringComparison.OrdinalIgnoreCase))
-            return ProjectionProviderNames.InMemory;
-        if (string.Equals(candidate, ProjectionProviderNames.Elasticsearch, StringComparison.OrdinalIgnoreCase))
-            return ProjectionProviderNames.Elasticsearch;
-        if (string.Equals(candidate, ProjectionProviderNames.Neo4j, StringComparison.OrdinalIgnoreCase))
-        {
-            throw new InvalidOperationException(
-                "Neo4j cannot be used as document provider. " +
-                "Use Elasticsearch for document indexing and Neo4j for graph traversal.");
-        }
+        if (!bool.TryParse(rawValue, out var parsed))
+            throw new InvalidOperationException($"Invalid boolean value '{rawValue}'.");
 
-        throw new InvalidOperationException(
-            $"Unsupported projection provider '{candidate}' configured at '{optionPath}'. " +
-            $"Allowed values: {ProjectionProviderNames.InMemory}, {ProjectionProviderNames.Elasticsearch}.");
-    }
-
-    private static string NormalizeGraphProvider(
-        string? configuredValue,
-        string fallbackValue,
-        string optionPath)
-    {
-        var candidate = string.IsNullOrWhiteSpace(configuredValue)
-            ? fallbackValue
-            : configuredValue.Trim();
-
-        if (string.Equals(candidate, ProjectionProviderNames.InMemory, StringComparison.OrdinalIgnoreCase))
-            return ProjectionProviderNames.InMemory;
-        if (string.Equals(candidate, ProjectionProviderNames.Neo4j, StringComparison.OrdinalIgnoreCase))
-            return ProjectionProviderNames.Neo4j;
-        if (string.Equals(candidate, ProjectionProviderNames.Elasticsearch, StringComparison.OrdinalIgnoreCase))
-        {
-            throw new InvalidOperationException(
-                "Elasticsearch cannot be used as graph provider. " +
-                "Use InMemory (dev/test) or Neo4j.");
-        }
-
-        throw new InvalidOperationException(
-            $"Unsupported projection provider '{candidate}' configured at '{optionPath}'. " +
-            $"Allowed values: {ProjectionProviderNames.InMemory}, {ProjectionProviderNames.Neo4j}.");
-    }
-
-    private static void RegisterDocumentProvider(
-        IServiceCollection services,
-        IConfiguration configuration,
-        string providerName)
-    {
-        switch (providerName)
-        {
-            case ProjectionProviderNames.InMemory:
-                services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
-                    keySelector: report => report.RootActorId,
-                    keyFormatter: key => key,
-                    listSortSelector: report => report.CreatedAt,
-                    listTakeMax: 200);
-                break;
-            case ProjectionProviderNames.Elasticsearch:
-                services.AddElasticsearchDocumentStoreRegistration<WorkflowExecutionReport, string>(
-                    optionsFactory: _ =>
-                    {
-                        var providerOptions = new ElasticsearchProjectionReadModelStoreOptions();
-                        configuration.GetSection("Projection:Document:Providers:Elasticsearch").Bind(providerOptions);
-                        return providerOptions;
-                    },
-                    indexScopeFactory: sp =>
-                    {
-                        var metadataResolver = sp.GetRequiredService<IProjectionDocumentMetadataResolver>();
-                        return metadataResolver.Resolve<WorkflowExecutionReport>().IndexName;
-                    },
-                    keySelector: report => report.RootActorId,
-                    keyFormatter: key => key);
-                break;
-            default:
-                throw new InvalidOperationException($"Unsupported document provider '{providerName}'.");
-        }
-    }
-
-    private static void RegisterGraphProvider(
-        IServiceCollection services,
-        IConfiguration configuration,
-        string providerName)
-    {
-        switch (providerName)
-        {
-            case ProjectionProviderNames.InMemory:
-                services.AddInMemoryGraphStoreRegistration();
-                break;
-            case ProjectionProviderNames.Elasticsearch:
-                throw new InvalidOperationException(
-                    "Elasticsearch cannot be used as graph provider. Use InMemory (dev/test) or Neo4j.");
-            case ProjectionProviderNames.Neo4j:
-                services.AddNeo4jGraphStoreRegistration(
-                    optionsFactory: _ =>
-                    {
-                        var providerOptions = new Neo4jProjectionGraphStoreOptions();
-                        configuration.GetSection("Projection:Graph:Providers:Neo4j").Bind(providerOptions);
-                        return providerOptions;
-                    },
-                    scopeFactory: _ => WorkflowExecutionGraphConstants.Scope);
-                break;
-            default:
-                throw new InvalidOperationException($"Unsupported graph provider '{providerName}'.");
-        }
+        return parsed;
     }
 
     private sealed class WorkflowProjectionProviderRegistrationsMarker;
-
-    private sealed record ProviderSelection(string DocumentProvider, string GraphProvider);
 }
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
index f7dcfd8f7..a57292d0d 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
@@ -117,7 +117,11 @@ private static ElasticsearchProjectionReadModelStore<StoreReadModel, string> Cre
         options.Endpoints = ["http://localhost:9200"];
         return new ElasticsearchProjectionReadModelStore<StoreReadModel, string>(
             options,
-            "workflow-execution-reports",
+            new DocumentIndexMetadata(
+                IndexName: "projection-core-tests",
+                MappingJson: "{}",
+                Settings: new Dictionary<string, string>(),
+                Aliases: new Dictionary<string, string>()),
             keySelector: model => model.Id,
             keyFormatter: key => key,
             httpMessageHandler: handler);
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
index 9d14be7de..939e3fad8 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
@@ -20,7 +20,11 @@ public async Task ElasticsearchStore_ShouldRoundtripUpsertAndMutate()
         var indexScope = "projection-provider-e2e-" + Guid.NewGuid().ToString("N");
         using var store = new ElasticsearchProjectionReadModelStore<ProviderStoreSmokeReadModel, string>(
             options,
-            indexScope,
+            new DocumentIndexMetadata(
+                IndexName: indexScope,
+                MappingJson: "{}",
+                Settings: new Dictionary<string, string>(),
+                Aliases: new Dictionary<string, string>()),
             model => model.Id);
 
         var readModel = new ProviderStoreSmokeReadModel
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
index 4fb8477be..3a64116a3 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
@@ -7,55 +7,66 @@ namespace Aevatar.CQRS.Projection.Core.Tests;
 public class ProjectionReadModelRuntimeTests
 {
     [Fact]
-    public void DocumentStoreFactory_WhenRequestedProviderMatched_ShouldCreateRequestedProviderStore()
+    public async Task ProjectionDocumentStoreFanout_ShouldFanoutWritesAndUsePrimaryQueryStore()
     {
+        var primaryStore = new NamedDocumentStore("primary");
+        var replicaStore = new NamedDocumentStore("replica");
         var services = new ServiceCollection();
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "InMemory",
-                _ => new NamedDocumentStore("InMemory")));
+                "primary",
+                _ => primaryStore));
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "Elasticsearch",
-                _ => new NamedDocumentStore("Elasticsearch")));
+                "replica",
+                _ => replicaStore));
 
         using var serviceProvider = services.BuildServiceProvider();
-        var factory = new ProjectionDocumentStoreFactory();
+        var fanout = new ProjectionDocumentStoreFanout<TestReadModel, string>(
+            serviceProvider.GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(),
+            serviceProvider);
 
-        var selected = factory.Create<TestReadModel, string>(serviceProvider, "inmemory");
-        var typed = selected.Should().BeOfType<NamedDocumentStore>().Subject;
-        typed.ProviderName.Should().Be("InMemory");
+        var model = new TestReadModel
+        {
+            Id = "id-1",
+            Value = "v1",
+        };
+
+        await fanout.UpsertAsync(model);
+
+        primaryStore.UpsertCount.Should().Be(1);
+        replicaStore.UpsertCount.Should().Be(1);
+
+        var fetched = await fanout.GetAsync("id-1");
+        fetched.Should().NotBeNull();
+        fetched!.Value.Should().Be("v1");
     }
 
     [Fact]
-    public void DocumentStoreFactory_WhenMultipleProvidersWithoutRequested_ShouldThrowStructuredException()
+    public void ProjectionDocumentStoreFanout_WhenNoRegistrations_ShouldThrow()
     {
         var services = new ServiceCollection();
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "InMemory",
-                _ => new NamedDocumentStore("InMemory")));
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "Elasticsearch",
-                _ => new NamedDocumentStore("Elasticsearch")));
-
         using var serviceProvider = services.BuildServiceProvider();
-        var factory = new ProjectionDocumentStoreFactory();
 
-        Action act = () => factory.Create<TestReadModel, string>(serviceProvider);
+        Action act = () => new ProjectionDocumentStoreFanout<TestReadModel, string>(
+            [],
+            serviceProvider);
 
-        act.Should().Throw<ProjectionProviderSelectionException>()
-            .Where(ex => ex.ReadModelType == typeof(TestReadModel));
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*No document projection store providers are registered*");
     }
 
     public sealed class TestReadModel
     {
         public string Id { get; set; } = "";
+
+        public string Value { get; set; } = "";
     }
 
     private sealed class NamedDocumentStore : IDocumentProjectionStore<TestReadModel, string>
     {
+        private readonly Dictionary<string, TestReadModel> _models = new(StringComparer.Ordinal);
+
         public NamedDocumentStore(string providerName)
         {
             ProviderName = providerName;
@@ -63,33 +74,37 @@ public NamedDocumentStore(string providerName)
 
         public string ProviderName { get; }
 
+        public int UpsertCount { get; private set; }
+
         public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default)
         {
-            _ = readModel;
-            _ = ct;
+            _models[readModel.Id] = new TestReadModel
+            {
+                Id = readModel.Id,
+                Value = readModel.Value,
+            };
+            UpsertCount++;
             return Task.CompletedTask;
         }
 
         public Task MutateAsync(string key, Action<TestReadModel> mutate, CancellationToken ct = default)
         {
-            _ = key;
-            _ = mutate;
-            _ = ct;
+            if (!_models.TryGetValue(key, out var existing))
+                throw new InvalidOperationException($"Missing key '{key}'.");
+
+            mutate(existing);
             return Task.CompletedTask;
         }
 
         public Task<TestReadModel?> GetAsync(string key, CancellationToken ct = default)
         {
-            _ = key;
-            _ = ct;
-            return Task.FromResult<TestReadModel?>(null);
+            _models.TryGetValue(key, out var value);
+            return Task.FromResult<TestReadModel?>(value);
         }
 
         public Task<IReadOnlyList<TestReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
         {
-            _ = take;
-            _ = ct;
-            return Task.FromResult<IReadOnlyList<TestReadModel>>([]);
+            return Task.FromResult<IReadOnlyList<TestReadModel>>(_models.Values.Take(take).ToList());
         }
     }
 }
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
index 91958c6ba..a32e154f1 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
@@ -7,55 +7,60 @@ namespace Aevatar.CQRS.Projection.Core.Tests;
 public class ProjectionReadModelStoreSelectorTests
 {
     [Fact]
-    public void GraphStoreFactory_WhenRequestedProviderMatched_ShouldCreateRequestedProviderStore()
+    public async Task ProjectionGraphStoreFanout_ShouldFanoutWritesAndUsePrimaryQueryStore()
     {
+        var primaryStore = new NamedGraphStore("primary");
+        var replicaStore = new NamedGraphStore("replica");
         var services = new ServiceCollection();
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "inmemory",
-                _ => new NamedGraphStore("inmemory")));
+                "primary",
+                _ => primaryStore));
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "neo4j",
-                _ => new NamedGraphStore("neo4j")));
+                "replica",
+                _ => replicaStore));
 
         using var serviceProvider = services.BuildServiceProvider();
-        var factory = new ProjectionGraphStoreFactory();
+        var fanout = new ProjectionGraphStoreFanout(
+            serviceProvider.GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>(),
+            serviceProvider);
 
-        var selected = factory.Create(serviceProvider, "Neo4J");
-        var typed = selected.Should().BeOfType<NamedGraphStore>().Subject;
-        typed.ProviderName.Should().Be("neo4j");
-    }
-
-    [Fact]
-    public void GraphStoreFactory_WhenRequestedProviderMissing_ShouldThrow()
-    {
-        var services = new ServiceCollection();
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "inmemory",
-                _ => new NamedGraphStore("inmemory")));
-
-        using var serviceProvider = services.BuildServiceProvider();
-        var factory = new ProjectionGraphStoreFactory();
-
-        Action act = () => factory.Create(serviceProvider, "elasticsearch");
-
-        act.Should().Throw<ProjectionProviderSelectionException>()
-            .Where(ex => ex.Reason.Contains("Requested relation store provider is not registered", StringComparison.Ordinal));
+        await fanout.UpsertNodeAsync(new ProjectionGraphNode
+        {
+            Scope = "projection-scope",
+            NodeId = "node-1",
+            NodeType = "Actor",
+            Properties = new Dictionary<string, string>(),
+            UpdatedAt = DateTimeOffset.UtcNow,
+        });
+
+        var edges = await fanout.GetNeighborsAsync(new ProjectionGraphQuery
+        {
+            Scope = "projection-scope",
+            RootNodeId = "node-1",
+            Direction = ProjectionGraphDirection.Both,
+            EdgeTypes = [],
+            Depth = 1,
+            Take = 10,
+        });
+
+        primaryStore.UpsertNodeCount.Should().Be(1);
+        replicaStore.UpsertNodeCount.Should().Be(1);
+        edges.Should().HaveCount(1);
+        edges[0].EdgeType.Should().Be("primary");
     }
 
     [Fact]
-    public void GraphStoreFactory_WhenNoProviderRegistered_ShouldThrow()
+    public void ProjectionGraphStoreFanout_WhenNoRegistrations_ShouldThrow()
     {
         var services = new ServiceCollection();
         using var serviceProvider = services.BuildServiceProvider();
-        var factory = new ProjectionGraphStoreFactory();
 
-        Action act = () => factory.Create(serviceProvider, ProjectionProviderNames.InMemory);
+        Action act = () => new ProjectionGraphStoreFanout([], serviceProvider);
 
-        act.Should().Throw<ProjectionProviderSelectionException>()
-            .Where(ex => ex.Reason.Contains("No relation store provider registrations", StringComparison.Ordinal));
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*No graph projection store providers are registered*");
     }
 
     private sealed class NamedGraphStore : IProjectionGraphStore
@@ -67,16 +72,51 @@ public NamedGraphStore(string providerName)
 
         public string ProviderName { get; }
 
-        public Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default) => Task.CompletedTask;
+        public int UpsertNodeCount { get; private set; }
+
+        public Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
+        {
+            _ = node;
+            UpsertNodeCount++;
+            return Task.CompletedTask;
+        }
 
-        public Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default) => Task.CompletedTask;
+        public Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default)
+        {
+            _ = edge;
+            return Task.CompletedTask;
+        }
 
-        public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default) => Task.CompletedTask;
+        public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
+        {
+            _ = scope;
+            _ = edgeId;
+            return Task.CompletedTask;
+        }
 
-        public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(ProjectionGraphQuery query, CancellationToken ct = default) =>
-            Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>([]);
+        public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(ProjectionGraphQuery query, CancellationToken ct = default)
+        {
+            _ = query;
+            IReadOnlyList<ProjectionGraphEdge> result =
+            [
+                new ProjectionGraphEdge
+                {
+                    Scope = "projection-scope",
+                    EdgeId = "edge-1",
+                    EdgeType = ProviderName,
+                    FromNodeId = "node-1",
+                    ToNodeId = "node-2",
+                    Properties = new Dictionary<string, string>(),
+                    UpdatedAt = DateTimeOffset.UtcNow,
+                },
+            ];
+            return Task.FromResult(result);
+        }
 
-        public Task<ProjectionGraphSubgraph> GetSubgraphAsync(ProjectionGraphQuery query, CancellationToken ct = default) =>
-            Task.FromResult(new ProjectionGraphSubgraph());
+        public Task<ProjectionGraphSubgraph> GetSubgraphAsync(ProjectionGraphQuery query, CancellationToken ct = default)
+        {
+            _ = query;
+            return Task.FromResult(new ProjectionGraphSubgraph());
+        }
     }
 }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 6623f931c..6a65e8faa 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -1,16 +1,13 @@
 using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
-using Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
 using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
-using Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 using Aevatar.CQRS.Projection.Runtime.Runtime;
 using Aevatar.CQRS.Projection.Stores.Abstractions;
 using Aevatar.Workflow.Projection.DependencyInjection;
 using Aevatar.Workflow.Projection.ReadModels;
 using FluentAssertions;
 using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.Extensions.Hosting;
 
 namespace Aevatar.Workflow.Host.Api.Tests;
@@ -26,12 +23,12 @@ public async Task AddWorkflowExecutionProjectionCQRS_WhenNoProvidersRegistered_S
         await using var provider = services.BuildServiceProvider();
         Func<Task> act = () => StartHostedServicesAsync(provider);
 
-        await act.Should().ThrowAsync<ProjectionProviderSelectionException>()
-            .WithMessage("*No document store provider registrations were found*");
+        await act.Should().ThrowAsync<InvalidOperationException>()
+            .WithMessage("*No document projection store providers are registered*");
     }
 
     [Fact]
-    public async Task AddWorkflowExecutionProjectionCQRS_ShouldResolveInMemoryDocumentAndGraphStores()
+    public async Task AddWorkflowExecutionProjectionCQRS_ShouldResolveFanoutStores()
     {
         var services = new ServiceCollection();
         RegisterInMemoryProviders(services);
@@ -39,14 +36,12 @@ public async Task AddWorkflowExecutionProjectionCQRS_ShouldResolveInMemoryDocume
 
         await using var provider = services.BuildServiceProvider();
         var documentStore = provider.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>();
-        var readModelStore = provider.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>();
         var relationStore = provider.GetRequiredService<IProjectionGraphStore>();
         var graphStore = provider.GetRequiredService<IProjectionGraphMaterializer<WorkflowExecutionReport>>();
         var router = provider.GetRequiredService<IProjectionMaterializationRouter<WorkflowExecutionReport, string>>();
 
-        documentStore.Should().BeOfType<InMemoryProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        readModelStore.Should().BeOfType<InMemoryProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        relationStore.Should().BeOfType<InMemoryProjectionGraphStore>();
+        documentStore.Should().BeOfType<ProjectionDocumentStoreFanout<WorkflowExecutionReport, string>>();
+        relationStore.Should().BeOfType<ProjectionGraphStoreFanout>();
         graphStore.Should().BeOfType<ProjectionGraphMaterializer<WorkflowExecutionReport>>();
         router.Should().NotBeNull();
 
@@ -54,42 +49,18 @@ public async Task AddWorkflowExecutionProjectionCQRS_ShouldResolveInMemoryDocume
         await act.Should().NotThrowAsync();
     }
 
-    [Fact]
-    public void AddWorkflowExecutionProjectionCQRS_WhenDocumentElasticsearchAndGraphInMemoryConfigured_ShouldResolveSplitProviders()
-    {
-        var services = new ServiceCollection();
-        RegisterInMemoryProviders(services);
-        RegisterElasticsearchDocumentProvider(services);
-        ConfigureStoreSelectionOptions(
-            services,
-            documentProvider: ProjectionProviderNames.Elasticsearch,
-            graphProvider: ProjectionProviderNames.InMemory);
-        services.AddWorkflowExecutionProjectionCQRS();
-
-        using var provider = services.BuildServiceProvider();
-        var readModelStore = provider.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>();
-        var relationStore = provider.GetRequiredService<IProjectionGraphStore>();
-
-        readModelStore.Should().BeOfType<ElasticsearchProjectionReadModelStore<WorkflowExecutionReport, string>>();
-        relationStore.Should().BeOfType<InMemoryProjectionGraphStore>();
-    }
-
     [Fact]
     public void AddWorkflowExecutionProjectionCQRS_WhenGraphProviderMissing_ShouldThrowOnGraphStoreResolution()
     {
         var services = new ServiceCollection();
         RegisterElasticsearchDocumentProvider(services);
-        ConfigureStoreSelectionOptions(
-            services,
-            documentProvider: ProjectionProviderNames.Elasticsearch,
-            graphProvider: ProjectionProviderNames.Elasticsearch);
         services.AddWorkflowExecutionProjectionCQRS();
 
         using var provider = services.BuildServiceProvider();
         Action act = () => provider.GetRequiredService<IProjectionGraphStore>();
 
-        act.Should().Throw<ProjectionProviderSelectionException>()
-            .WithMessage("*No relation store provider registrations were found*");
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*No graph projection store providers are registered*");
     }
 
     private static void RegisterInMemoryProviders(IServiceCollection services)
@@ -109,35 +80,15 @@ private static void RegisterElasticsearchDocumentProvider(IServiceCollection ser
             {
                 Endpoints = ["http://localhost:9200"],
             },
-            indexScopeFactory: sp =>
+            metadataFactory: sp =>
             {
                 var metadataResolver = sp.GetRequiredService<IProjectionDocumentMetadataResolver>();
-                return metadataResolver.Resolve<WorkflowExecutionReport>().IndexName;
+                return metadataResolver.Resolve<WorkflowExecutionReport>();
             },
             keySelector: report => report.RootActorId,
             keyFormatter: key => key);
     }
 
-    private static void ConfigureStoreSelectionOptions(
-        IServiceCollection services,
-        string documentProvider,
-        string graphProvider)
-    {
-        var documentOptions = new ProjectionDocumentRuntimeOptions
-        {
-            ProviderName = documentProvider,
-            FailFastOnStartup = true,
-        };
-        var graphOptions = new ProjectionGraphRuntimeOptions
-        {
-            ProviderName = graphProvider,
-            FailFastOnStartup = true,
-        };
-
-        services.Replace(ServiceDescriptor.Singleton(documentOptions));
-        services.Replace(ServiceDescriptor.Singleton(graphOptions));
-    }
-
     private static async Task StartHostedServicesAsync(IServiceProvider provider)
     {
         var hostedServices = provider.GetServices<IHostedService>().ToList();
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index f0348fd81..63f9d3985 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -2,7 +2,6 @@
 using Aevatar.AI.Abstractions.ToolProviders;
 using Aevatar.AI.ToolProviders.MCP;
 using Aevatar.AI.ToolProviders.Skills;
-using Aevatar.CQRS.Projection.Core.Abstractions;
 using Aevatar.Workflow.Application.Abstractions;
 using Aevatar.Workflow.Application.Abstractions.Runs;
 using Aevatar.Workflow.Application.Runs;
@@ -45,10 +44,11 @@ public async Task AddWorkflowCapabilityWithAIDefaults_ShouldRegisterWorkflowAndA
 
         builder.Services.Any(x => x.ServiceType == typeof(IWorkflowRunRequestExecutor)).Should().BeTrue();
         builder.Services.Any(x => x.ServiceType == typeof(IWorkflowRunActorPort)).Should().BeTrue();
-        builder.Services.Any(x => x.ServiceType == typeof(IDocumentProjectionStore<WorkflowExecutionReport, string>)).Should().BeTrue();
+        builder.Services.Any(x => x.ServiceType == typeof(IDocumentProjectionStore<,>)).Should().BeTrue();
 
         await using var provider = builder.Services.BuildServiceProvider();
         provider.GetService<ILLMProviderFactory>().Should().NotBeNull();
+        provider.GetService<IDocumentProjectionStore<WorkflowExecutionReport, string>>().Should().NotBeNull();
 
         var toolSources = provider.GetServices<IAgentToolSource>().ToList();
         toolSources.Should().NotContain(x => x is MCPAgentToolSource);
@@ -97,15 +97,18 @@ public void AddWorkflowProjectionReadModelProviders_MultipleCalls_ShouldBeIdempo
     }
 
     [Fact]
-    public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_ShouldRegisterConfiguredCombinationOnly()
+    public void AddWorkflowProjectionReadModelProviders_WhenDurableProvidersEnabled_ShouldRegisterDurableCombinationOnly()
     {
         var services = new ServiceCollection();
         var configuration = new ConfigurationBuilder()
             .AddInMemoryCollection(new Dictionary<string, string?>
             {
-                ["Projection:Document:Provider"] = ProjectionProviderNames.Elasticsearch,
-                ["Projection:Graph:Provider"] = ProjectionProviderNames.InMemory,
+                ["Projection:Document:Providers:InMemory:Enabled"] = "false",
+                ["Projection:Document:Providers:Elasticsearch:Enabled"] = "true",
                 ["Projection:Document:Providers:Elasticsearch:Endpoints:0"] = "http://localhost:9200",
+                ["Projection:Graph:Providers:InMemory:Enabled"] = "false",
+                ["Projection:Graph:Providers:Neo4j:Enabled"] = "true",
+                ["Projection:Graph:Providers:Neo4j:Uri"] = "bolt://localhost:7687",
             })
             .Build();
 
@@ -117,58 +120,26 @@ public void AddWorkflowProjectionReadModelProviders_WhenProvidersAreConfigured_S
         var relationRegistrations = services
             .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionGraphStore>))
             .ToList();
-        var documentRuntimeOptionRegistrations = services
-            .Where(x => x.ServiceType == typeof(ProjectionDocumentRuntimeOptions))
-            .ToList();
-        var graphRuntimeOptionRegistrations = services
-            .Where(x => x.ServiceType == typeof(ProjectionGraphRuntimeOptions))
-            .ToList();
 
         providerRegistrations.Should().HaveCount(1);
         relationRegistrations.Should().HaveCount(1);
-        documentRuntimeOptionRegistrations.Should().HaveCount(1);
-        graphRuntimeOptionRegistrations.Should().HaveCount(1);
-
-        using var provider = services.BuildServiceProvider();
-        var documentOptions = provider.GetRequiredService<ProjectionDocumentRuntimeOptions>();
-        var graphOptions = provider.GetRequiredService<ProjectionGraphRuntimeOptions>();
-        documentOptions.ProviderName.Should().Be(ProjectionProviderNames.Elasticsearch);
-        graphOptions.ProviderName.Should().Be(ProjectionProviderNames.InMemory);
     }
 
     [Fact]
-    public void AddWorkflowProjectionReadModelProviders_WhenProviderConfiguredUnknown_ShouldThrow()
+    public void AddWorkflowProjectionReadModelProviders_WhenLegacyProviderConfigured_ShouldThrow()
     {
         var services = new ServiceCollection();
         var configuration = new ConfigurationBuilder()
             .AddInMemoryCollection(new Dictionary<string, string?>
             {
-                ["Projection:Document:Provider"] = "UnknownProvider",
+                ["Projection:Document:Provider"] = "InMemory",
             })
             .Build();
 
         Action act = () => services.AddWorkflowProjectionReadModelProviders(configuration);
 
         act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*Unsupported projection provider*");
-    }
-
-    [Fact]
-    public void AddWorkflowProjectionReadModelProviders_WhenDocumentProviderConfiguredAsNeo4j_ShouldThrow()
-    {
-        var services = new ServiceCollection();
-        var configuration = new ConfigurationBuilder()
-            .AddInMemoryCollection(new Dictionary<string, string?>
-            {
-                ["Projection:Document:Provider"] = ProjectionProviderNames.Neo4j,
-                ["Projection:Graph:Provider"] = ProjectionProviderNames.Neo4j,
-            })
-            .Build();
-
-        Action act = () => services.AddWorkflowProjectionReadModelProviders(configuration);
-
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*Neo4j cannot be used as document provider*");
+            .WithMessage("*Legacy provider single-selection options are no longer supported*");
     }
 
     [Fact]
@@ -178,9 +149,6 @@ public void AddWorkflowProjectionReadModelProviders_WhenPolicyDeniesInMemoryRela
         var configuration = new ConfigurationBuilder()
             .AddInMemoryCollection(new Dictionary<string, string?>
             {
-                ["Projection:Document:Provider"] = ProjectionProviderNames.Elasticsearch,
-                ["Projection:Graph:Provider"] = ProjectionProviderNames.InMemory,
-                ["Projection:Document:Providers:Elasticsearch:Endpoints:0"] = "http://localhost:9200",
                 ["Projection:Policies:DenyInMemoryGraphFactStore"] = "true",
             })
             .Build();

From ffb36c51c7dc47f903fdf36b29bc8bce50213552 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 02:02:14 +0800
Subject: [PATCH 34/46] Enhance Projection ReadModel with Primary Query
 Provider and Edge Management Features

- Introduced a mechanism to explicitly specify a unique primary query provider for document and graph projections, enhancing clarity in multi-provider scenarios.
- Updated the `IProjectionStoreRegistration<TStore>` interface to include an `IsPrimaryQueryStore` property, ensuring only one primary provider is registered.
- Implemented new methods in `IProjectionGraphStore` and `InMemoryProjectionGraphStore` to support edge retrieval by owner, facilitating precise cleanup operations.
- Enhanced the `ProjectionGraphMaterializer` to manage edges based on ownership, improving the accuracy of graph updates and deletions.
- Updated documentation across various components to reflect these architectural changes and clarify the new functionalities.
---
 ...readmodel-full-refactor-plan-2026-02-24.md |  15 +
 ...on-store-readmodel-scorecard-2026-02-24.md |  84 ++---
 .../ServiceCollectionExtensions.cs            |   2 +
 .../README.md                                 |   3 +-
 .../ServiceCollectionExtensions.cs            |   6 +-
 .../README.md                                 |   5 +-
 .../Stores/InMemoryProjectionGraphStore.cs    |  30 ++
 .../ServiceCollectionExtensions.cs            |   4 +-
 .../README.md                                 |   5 +-
 .../Stores/Neo4jProjectionGraphStore.cs       |  73 +++-
 .../DelegateProjectionStoreRegistration.cs    |   4 +
 .../Core/IProjectionStoreRegistration.cs      |   2 +
 .../README.md                                 |   2 +
 src/Aevatar.CQRS.Projection.Runtime/README.md |   4 +-
 .../Runtime/ProjectionDocumentStoreFanout.cs  |  54 ++-
 .../Runtime/ProjectionGraphMaterializer.cs    |  82 +++--
 .../Runtime/ProjectionGraphStoreFanout.cs     |  48 ++-
 .../Graphs/IProjectionGraphStore.cs           |   6 +
 .../ProjectionGraphSystemPropertyKeys.cs      |  10 +
 ...tionProviderServiceCollectionExtensions.cs |  40 ++-
 .../ProjectionGraphMaterializerTests.cs       | 338 ++++++++++++++++++
 .../ProjectionReadModelRuntimeTests.cs        |  98 ++++-
 .../ProjectionReadModelStoreSelectorTests.cs  |  70 +++-
 ...lowExecutionProjectionRegistrationTests.cs |   4 +-
 .../WorkflowHostingExtensionsCoverageTests.cs |  43 +++
 25 files changed, 919 insertions(+), 113 deletions(-)
 create mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSystemPropertyKeys.cs
 create mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs

diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
index 135909c27..a01bf2a72 100644
--- a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
+++ b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
@@ -97,6 +97,21 @@ Rules:
 1. Legacy single-select keys (`Projection:Document:Provider`, `Projection:Graph:Provider`) are rejected.
 2. InMemory providers are fallback defaults when durable providers are not enabled.
 3. `Projection:Policies:DenyInMemoryGraphFactStore=true` forbids in-memory graph fact store.
+4. 多 provider 场景显式指定唯一 primary query provider：
+   - Document：优先 `Elasticsearch`，否则 `InMemory`
+   - Graph：优先 `Neo4j`，否则 `InMemory`
+
+## 3.6 Query Primary & Graph Cleanup Hardening
+
+- `IProjectionStoreRegistration<TStore>` 增加 `IsPrimaryQueryStore`。
+- `ProjectionDocumentStoreFanout` / `ProjectionGraphStoreFanout` 改为：
+  - 多注册必须且仅允许一个 primary；
+  - 单注册允许无 primary（默认该唯一 provider 为 query store）；
+  - 冲突或缺失时 fail-fast。
+- `IProjectionGraphStore` 增加 `ListEdgesByOwnerAsync(scope, ownerId, take)`。
+- `ProjectionGraphMaterializer<TReadModel>` 从锚点子图清理重构为 owner-based 精确清理：
+  - 写边时注入系统属性：`projectionManaged=true`、`projectionOwnerId=<ReadModelType>:<ReadModelId>`
+  - 清理时按 owner 列举已有边并做差集删除，不再依赖 `Depth/Take` 子图扫描窗口。
 
 ## 3.5 Elasticsearch Metadata Behavior
 
diff --git a/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
index 868eaa7a8..a1e563656 100644
--- a/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
+++ b/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
@@ -1,4 +1,4 @@
-# Projection Store / ReadModel 严格评分卡（2026-02-24，重构后）
+# Projection Store / ReadModel 严格评分卡（2026-02-24 复评分）
 
 ## 1. 审计范围
 
@@ -10,69 +10,61 @@
 6. `src/Aevatar.CQRS.Projection.Providers.Neo4j`
 7. `src/workflow/Aevatar.Workflow.Projection`
 8. `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting`
-9. `test/Aevatar.CQRS.Projection.Core.Tests`、`test/Aevatar.Workflow.Host.Api.Tests`
+9. `test/Aevatar.CQRS.Projection.Core.Tests`
+10. `test/Aevatar.Workflow.Host.Api.Tests`
 
-## 2. 验证基线
+## 2. 本次验证基线
 
-已执行并通过：
+本次复评执行并通过：
 
 1. `dotnet build aevatar.slnx --nologo`
-2. `dotnet test aevatar.slnx --nologo`
-3. `bash tools/ci/architecture_guards.sh`
-4. `bash tools/ci/projection_route_mapping_guard.sh`
-5. `bash tools/ci/solution_split_guards.sh`
-6. `bash tools/ci/solution_split_test_guards.sh`
-7. `bash tools/ci/test_stability_guards.sh`
+2. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
+3. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
+4. `bash tools/ci/architecture_guards.sh`
+5. `bash tools/ci/projection_route_mapping_guard.sh`
 
 ## 3. 总分结论
 
-- **总分：90 / 100**
-- **等级：A-（严格口径）**
-- **结论：架构主干已清晰收敛为“Document/Graph 分离 + 各自一对多 Fan-out + ReadModel 接口驱动”。主要剩余风险集中在 Graph 清理窗口与跨存储一致性策略。**
+- **总分：84 / 100**
+- **等级：B+（严格口径）**
+- **结论：主架构已经从“单选 provider”收敛到“Document/Graph 分离的一对多 fan-out”，方向正确；但仍存在主查询源隐式选择、图清理窗口固定、跨 store 非事务一致性等高影响工程风险。**
 
-## 4. 维度评分（严格扣分）
+## 4. 维度评分（严格）
 
-| 维度 | 权重 | 得分 | 说明 |
+| 维度 | 权重 | 得分 | 证据与说明 |
 |---|---:|---:|---|
-| 架构边界与抽象收敛 | 15 | 15 | 已删除 `Factory/Selector/RuntimeOptions/ProviderNames` 冗余层；Runtime 仅保留 fan-out 与 materialization。 |
-| Provider 模型清晰度 | 15 | 15 | 从单选改为一对多广播：`ProjectionDocumentStoreFanout<,>`、`ProjectionGraphStoreFanout`。 |
-| Document 索引语义完整性 | 20 | 18 | Elasticsearch 已使用 `DocumentIndexMetadata` 的 `MappingJson/Settings/Aliases` 初始化索引。 |
-| Graph 关系语义与正确性 | 15 | 12 | `IGraphReadModel` 声明式节点/边清晰；但图清理仍依赖固定窗口扫描。 |
-| 一致性与失败语义 | 10 | 8 | 双写为顺序 fan-out，非事务；故障语义仍是“部分成功即失败抛出”。 |
-| Provider 实现质量与性能 | 10 | 8 | ES OCC 完整；Neo4j 子图遍历仍存在逐层多次查询放大风险。 |
-| 可观测性 | 5 | 4 | 文档写路径日志较完整；图路径仍可补充统一成功日志与关键指标。 |
-| 测试与治理门禁 | 10 | 10 | Core/Workflow 测试已对 fan-out 语义更新，build/test/guards 全通过。 |
+| 架构边界与抽象收敛 | 15 | 14 | 已删 `Factory/Selector/RuntimeOptions`，Runtime 仅保留 fan-out + materialization（`Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:11-15`）。扣分：`IProjectionStoreRegistration` 仍保留 `ProviderName`，但运行时不再用其做治理约束（`Runtime.Abstractions/.../IProjectionStoreRegistration.cs:3-7`）。 |
+| Provider 模型清晰度 | 15 | 14 | Fan-out 明确：`ProjectionDocumentStoreFanout` 与 `ProjectionGraphStoreFanout`（`.../ProjectionDocumentStoreFanout.cs:6-84`，`.../ProjectionGraphStoreFanout.cs:6-82`）。扣分：主查询源由“第一个注册”隐式决定（`ProjectionDocumentStoreFanout.cs:34`，`ProjectionGraphStoreFanout.cs:31`）。 |
+| Document 索引语义完整性 | 20 | 17 | ES 已使用 `DocumentIndexMetadata` 初始化 mappings/settings/aliases（`ElasticsearchProjectionReadModelStore.cs:486-503`，`505-532`）。扣分：元数据结构仍是 `Dictionary<string,string>`，复杂 settings/aliases 需字符串内嵌 JSON（`DocumentIndexMetadata.cs:3-7`，`ElasticsearchProjectionReadModelStore.cs:515-529`）；Workflow 默认 metadata 仍是空 mapping（`WorkflowExecutionReportDocumentMetadataProvider.cs:8-12`）。 |
+| Graph 关系语义与正确性 | 15 | 12 | `IGraphReadModel` 采用声明式节点/边接口（`IGraphReadModel.cs:3-9`）；Workflow ReadModel 同时实现 Doc+Graph（`WorkflowExecutionReadModel.cs:32-45`）。扣分：图清理固定窗口 `Depth=8/Take=5000`（`ProjectionGraphMaterializer.cs:42-50`），且锚点推断为首节点/ReadModel.Id/首边 from（`66-79`）。 |
+| 一致性与失败语义 | 10 | 7 | 路由按能力执行（`ProjectionMaterializationRouter.cs:31-37`）。扣分：跨 store 非事务；`Document` 先写成功后 `Graph` 失败会留下部分成功状态（`31-37`）；`Mutate` 后再 fan-out 到其它 store（`ProjectionDocumentStoreFanout.cs:58-73`）。 |
+| Provider 实现质量与性能 | 10 | 8 | ES OCC 重试完备（`ElasticsearchProjectionReadModelStore.cs:93-143`）。扣分：Neo4j 子图遍历逐层调用 `GetNeighborsAsync`，存在放大风险（`Neo4jProjectionGraphStore.cs:190-209`）。 |
+| 可观测性 | 5 | 3 | 文档路径日志完整（`ElasticsearchProjectionReadModelStore.cs:282-355`，`ProjectionDocumentStoreFanout.cs:35-38`）。扣分：Graph provider 成功路径日志薄弱，Neo4j 仅反序列化 warning（`Neo4jProjectionGraphStore.cs:475-480`）。 |
+| 测试与治理门禁 | 10 | 9 | Fan-out 行为有单测（`ProjectionReadModelRuntimeTests.cs:10-57`，`ProjectionReadModelStoreSelectorTests.cs:10-64`）；Workflow 注册策略有覆盖（`WorkflowExecutionProjectionRegistrationTests.cs:18-64`，`WorkflowHostingExtensionsCoverageTests.cs:99-160`）；架构/路由守卫通过。扣分：缺少 `DocumentIndexMetadata` 的 mapping/settings/aliases 初始化行为专门测试。 |
 
-## 5. 关键发现
+## 5. 关键扣分项（按优先级）
 
-### 高优先级
+### P1
 
-1. **Graph 清理窗口固定值风险**
-   - `ProjectionGraphMaterializer` 仍使用固定 `Depth/Take` 子图扫描清理旧边。
+1. **主查询源隐式顺序问题**
+   - 当前 query store 取第一个注册，缺少显式 primary 机制（`ProjectionDocumentStoreFanout.cs:34`，`ProjectionGraphStoreFanout.cs:31`）。
 
-### 中优先级
+2. **Graph 清理窗口固定值**
+   - `Depth=8/Take=5000` 可能导致边清理不完整（`ProjectionGraphMaterializer.cs:42-50`）。
 
-1. **跨 Provider 双写非事务**
-   - 当前策略是顺序写入，失败后由上层重试/补偿，不保证原子。
+### P2
 
-2. **Neo4j 子图查询存在潜在放大**
-   - 深度遍历为循环邻接查询模式，大图场景需继续压测与优化。
+1. **跨 provider 双写非事务**
+   - 先写后写失败不回滚（`ProjectionMaterializationRouter.cs:31-37`）。
 
-## 6. 严格整改建议
+2. **Neo4j 子图遍历放大风险**
+   - 每层每节点邻接查询（`Neo4jProjectionGraphStore.cs:190-209`）。
 
-### P1（必须）
+### P3
 
-1. 为 Graph 清理增加可配置窗口、分批策略与 owner/version 标记。
+1. **Graph 可观测性偏弱**
+   - 缺少统一写入成功/失败指标日志模板。
 
-### P2（应做）
+## 6. 复评判定
 
-1. 增加跨 Provider 写失败重试/补偿策略文档与可观测指标。
-2. 为 Neo4j 子图查询补充压力测试与查询计划基准。
-
-### P3（可选）
-
-1. 引入图写入/清理统计指标（吞吐、延迟、清理命中率）。
-
-## 7. 最终判定
-
-重构后已达到“结构正确、边界清晰、可验证”的高质量状态；在严格口径下为 **90/100（A-）**。
+当前实现已经达到“架构方向正确、分层清晰、可落地运行”，但在严格工程口径下仍未达到 A 档稳定性。复评分为 **84/100（B+）**。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index a6aee7094..23604f38b 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -12,6 +12,7 @@ public static IServiceCollection AddElasticsearchDocumentStoreRegistration<TRead
         Func<IServiceProvider, ElasticsearchProjectionReadModelStoreOptions> optionsFactory,
         Func<IServiceProvider, DocumentIndexMetadata> metadataFactory,
         Func<TReadModel, TKey> keySelector,
+        bool isPrimaryQueryStore,
         Func<TKey, string>? keyFormatter = null)
         where TReadModel : class
     {
@@ -22,6 +23,7 @@ public static IServiceCollection AddElasticsearchDocumentStoreRegistration<TRead
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
                 "Elasticsearch",
+                isPrimaryQueryStore,
                 provider => new ElasticsearchProjectionReadModelStore<TReadModel, TKey>(
                     optionsFactory(provider),
                     metadataFactory(provider),
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
index 9c9591361..4c968b331 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
@@ -11,10 +11,11 @@
 
 ## DI 注册
 
-- `AddElasticsearchDocumentStoreRegistration<TReadModel, TKey>(...)`
+- `AddElasticsearchDocumentStoreRegistration<TReadModel, TKey>(..., isPrimaryQueryStore, ...)`
 
 关键参数：
 
 - `optionsFactory`：绑定 `Projection:Document:Providers:Elasticsearch:*` 配置。
 - `metadataFactory`：通常由 `IProjectionDocumentMetadataResolver` 解析 `IProjectionDocumentMetadataProvider<TReadModel>`。
 - `keySelector/keyFormatter`：ReadModel 主键映射。
+- `isPrimaryQueryStore`：是否作为 Runtime 查询主存储。
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index 90ce52acb..efa147571 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -9,6 +9,7 @@ public static class ServiceCollectionExtensions
     public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel, TKey>(
         this IServiceCollection services,
         Func<TReadModel, TKey> keySelector,
+        bool isPrimaryQueryStore,
         Func<TKey, string>? keyFormatter = null,
         Func<TReadModel, object?>? listSortSelector = null,
         int listTakeMax = 200)
@@ -19,6 +20,7 @@ public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
                 "InMemory",
+                isPrimaryQueryStore,
                 provider => new InMemoryProjectionReadModelStore<TReadModel, TKey>(
                     keySelector,
                     keyFormatter,
@@ -30,11 +32,13 @@ public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel
     }
 
     public static IServiceCollection AddInMemoryGraphStoreRegistration(
-        this IServiceCollection services)
+        this IServiceCollection services,
+        bool isPrimaryQueryStore)
     {
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
                 "InMemory",
+                isPrimaryQueryStore,
                 _ => new InMemoryProjectionGraphStore()));
 
         return services;
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
index c1705238d..f49fef138 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
@@ -9,11 +9,12 @@
 
 ## DI 注册
 
-- `AddInMemoryDocumentStoreRegistration<TReadModel, TKey>(...)`
-- `AddInMemoryGraphStoreRegistration()`
+- `AddInMemoryDocumentStoreRegistration<TReadModel, TKey>(..., isPrimaryQueryStore, ...)`
+- `AddInMemoryGraphStoreRegistration(isPrimaryQueryStore)`
 
 关键参数：
 
 - `keySelector/keyFormatter`：ReadModel 主键映射。
+- `isPrimaryQueryStore`：是否作为 Runtime 查询主存储。
 - `listSortSelector`：`ListAsync` 排序字段（可选）。
 - `listTakeMax`：`ListAsync` 硬上限。
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
index bb05510f4..35645ab7c 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
@@ -62,6 +62,36 @@ public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct =
         return Task.CompletedTask;
     }
 
+    public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
+        string scope,
+        string ownerId,
+        int take = 5000,
+        CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        var scopeValue = NormalizeToken(scope);
+        var ownerValue = NormalizeToken(ownerId);
+        if (scopeValue.Length == 0 || ownerValue.Length == 0)
+            return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>([]);
+
+        var boundedTake = Math.Clamp(take, 1, 50000);
+        List<ProjectionGraphEdge> edges;
+        lock (_gate)
+        {
+            edges = _edges.Values
+                .Where(x => string.Equals(x.Scope, scopeValue, StringComparison.Ordinal))
+                .Where(x =>
+                    x.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey, out var edgeOwnerId) &&
+                    string.Equals(NormalizeToken(edgeOwnerId), ownerValue, StringComparison.Ordinal))
+                .OrderByDescending(x => x.UpdatedAt)
+                .Take(boundedTake)
+                .Select(CloneEdge)
+                .ToList();
+        }
+
+        return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>(edges);
+    }
+
     public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
         ProjectionGraphQuery query,
         CancellationToken ct = default)
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index 2ffa1cfa9..44832e703 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -10,7 +10,8 @@ public static class ServiceCollectionExtensions
     public static IServiceCollection AddNeo4jGraphStoreRegistration(
         this IServiceCollection services,
         Func<IServiceProvider, Neo4jProjectionGraphStoreOptions> optionsFactory,
-        Func<IServiceProvider, string> scopeFactory)
+        Func<IServiceProvider, string> scopeFactory,
+        bool isPrimaryQueryStore)
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
         ArgumentNullException.ThrowIfNull(scopeFactory);
@@ -18,6 +19,7 @@ public static IServiceCollection AddNeo4jGraphStoreRegistration(
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
                 "Neo4j",
+                isPrimaryQueryStore,
                 provider => new Neo4jProjectionGraphStore(
                     optionsFactory(provider),
                     scopeFactory(provider),
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
index 14969cdb2..7c577c8e9 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
@@ -5,13 +5,14 @@
 - 不依赖任何业务域 read model。
 - 通过 `IProjectionStoreRegistration<IProjectionGraphStore>` 与上层模块解耦集成（Graph）。
 - 基于官方 `Neo4j.Driver` 实现连接与会话管理。
-- 支持 schema 约束初始化、邻居查询、子图遍历。
+- 支持 schema 约束初始化、邻居查询、子图遍历、owner 维度边查询（用于精确清理）。
 
 ## DI 注册
 
-- `AddNeo4jGraphStoreRegistration(...)`
+- `AddNeo4jGraphStoreRegistration(..., isPrimaryQueryStore)`
 
 关键参数：
 
 - `optionsFactory`：绑定 `Projection:Graph:Providers:Neo4j:*` 配置。
 - `scopeFactory`：graph scope 提供器。
+- `isPrimaryQueryStore`：是否作为 Runtime 查询主存储。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
index ec84ea055..7cb7b9291 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
@@ -96,12 +96,18 @@ public async Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct
 
         var updatedAtEpochMs = NormalizeTimestamp(edge.UpdatedAt);
         var propertiesJson = SerializeProperties(edge.Properties);
+        var projectionManaged = ResolveProjectionManaged(edge.Properties);
+        var projectionOwnerId = ResolveProjectionOwnerId(edge.Properties);
         var cypher = $"MERGE (from:{_nodeLabel} {{scope: $scope, nodeId: $fromNodeId}}) " +
                      "ON CREATE SET from.nodeType = 'Unknown', from.propertiesJson = '{}', from.updatedAtEpochMs = $updatedAtEpochMs " +
                      $"MERGE (to:{_nodeLabel} {{scope: $scope, nodeId: $toNodeId}}) " +
                      "ON CREATE SET to.nodeType = 'Unknown', to.propertiesJson = '{}', to.updatedAtEpochMs = $updatedAtEpochMs " +
                      $"MERGE (from)-[r:{_edgeType} {{scope: $scope, edgeId: $edgeId}}]->(to) " +
-                     "SET r.relationType = $relationType, r.propertiesJson = $propertiesJson, r.updatedAtEpochMs = $updatedAtEpochMs";
+                     "SET r.relationType = $relationType, " +
+                     "r.propertiesJson = $propertiesJson, " +
+                     "r.updatedAtEpochMs = $updatedAtEpochMs, " +
+                     "r.projectionManaged = $projectionManaged, " +
+                     "r.projectionOwnerId = CASE WHEN $projectionOwnerId = '' THEN null ELSE $projectionOwnerId END";
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scope,
@@ -111,6 +117,8 @@ public async Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct
             ["relationType"] = relationType,
             ["propertiesJson"] = propertiesJson,
             ["updatedAtEpochMs"] = updatedAtEpochMs,
+            ["projectionManaged"] = projectionManaged,
+            ["projectionOwnerId"] = projectionOwnerId,
         };
 
         await EnsureSchemaAsync(ct);
@@ -135,6 +143,49 @@ public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken
         await ExecuteWriteAsync(cypher, parameters, ct);
     }
 
+    public async Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
+        string scope,
+        string ownerId,
+        int take = 5000,
+        CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        var scopeValue = NormalizeToken(scope);
+        var ownerValue = NormalizeToken(ownerId);
+        if (scopeValue.Length == 0 || ownerValue.Length == 0)
+            return [];
+
+        await EnsureSchemaAsync(ct);
+        var boundedTake = Math.Clamp(take, 1, 50000);
+        var cypher = $"MATCH ()-[r:{_edgeType} {{scope: $scope}}]->() " +
+                     "WHERE coalesce(r.projectionManaged, false) = true " +
+                     "AND r.projectionOwnerId = $ownerId " +
+                     "RETURN r.edgeId AS edgeId, " +
+                     "startNode(r).nodeId AS fromNodeId, " +
+                     "endNode(r).nodeId AS toNodeId, " +
+                     "coalesce(r.relationType, '') AS relationType, " +
+                     "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
+                     "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
+                     "ORDER BY updatedAtEpochMs DESC LIMIT $take";
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = scopeValue,
+            ["ownerId"] = ownerValue,
+            ["take"] = boundedTake,
+        };
+
+        var rows = await ExecuteReadAsync(cypher, parameters, ct);
+        var edges = new List<ProjectionGraphEdge>(rows.Count);
+        foreach (var row in rows)
+        {
+            var edge = BuildEdgeFromRow(scopeValue, row);
+            if (edge != null)
+                edges.Add(edge);
+        }
+
+        return edges;
+    }
+
     public async Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
         ProjectionGraphQuery query,
         CancellationToken ct = default)
@@ -452,6 +503,26 @@ private static string[] NormalizeEdgeTypes(IReadOnlyList<string> edgeTypes)
             .ToArray();
     }
 
+    private static bool ResolveProjectionManaged(IReadOnlyDictionary<string, string> properties)
+    {
+        if (!properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedMarkerKey, out var markerValue))
+            return false;
+
+        var normalizedMarker = NormalizeToken(markerValue);
+        return string.Equals(
+            normalizedMarker,
+            ProjectionGraphSystemPropertyKeys.ManagedMarkerValue,
+            StringComparison.Ordinal);
+    }
+
+    private static string ResolveProjectionOwnerId(IReadOnlyDictionary<string, string> properties)
+    {
+        if (!properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey, out var ownerId))
+            return "";
+
+        return NormalizeToken(ownerId);
+    }
+
     private string SerializeProperties(IReadOnlyDictionary<string, string> properties)
     {
         if (properties.Count == 0)
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
index 58c36550f..19539558f 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
@@ -6,6 +6,7 @@ public sealed class DelegateProjectionStoreRegistration<TStore> : IProjectionSto
 
     public DelegateProjectionStoreRegistration(
         string providerName,
+        bool isPrimaryQueryStore,
         Func<IServiceProvider, TStore> factory)
     {
         if (string.IsNullOrWhiteSpace(providerName))
@@ -13,11 +14,14 @@ public DelegateProjectionStoreRegistration(
         ArgumentNullException.ThrowIfNull(factory);
 
         ProviderName = providerName.Trim();
+        IsPrimaryQueryStore = isPrimaryQueryStore;
         _factory = factory;
     }
 
     public string ProviderName { get; }
 
+    public bool IsPrimaryQueryStore { get; }
+
     public TStore Create(IServiceProvider serviceProvider)
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
index d43210ba0..18d8d1fc0 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
@@ -4,5 +4,7 @@ public interface IProjectionStoreRegistration<out TStore>
 {
     string ProviderName { get; }
 
+    bool IsPrimaryQueryStore { get; }
+
     TStore Create(IServiceProvider serviceProvider);
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
index 3c681b8be..09af3e4af 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
@@ -11,6 +11,8 @@
 ## 关键契约
 
 - Store 注册：`IProjectionStoreRegistration<TStore>`
+  - `ProviderName`
+  - `IsPrimaryQueryStore`（多 provider 场景下唯一主查询存储）
 - Materialization：`IProjectionMaterializationRouter<TReadModel, TKey>`、`IProjectionGraphMaterializer<TReadModel>`
 - Metadata：`IProjectionDocumentMetadataResolver`
 
diff --git a/src/Aevatar.CQRS.Projection.Runtime/README.md b/src/Aevatar.CQRS.Projection.Runtime/README.md
index 12e228d3f..4eafb56e6 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime/README.md
@@ -25,6 +25,6 @@
 ## 设计约束
 
 1. 不承载业务 ReadModel 类型。
-2. 不做 providerName 单选，不存在运行时降级逻辑。
-3. Document 与 Graph 完全解耦，分别按注册列表一对多分发。
+2. 不做 providerName 单选，不存在运行时降级逻辑；多 provider 时必须显式且唯一 `IsPrimaryQueryStore=true`。
+3. Document 与 Graph 完全解耦，分别按注册列表一对多分发（写 fan-out，读走 primary）。
 4. 仅依赖抽象契约与 DI；具体 Provider 由上层注册。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
index 5b9cf2c38..ed2a369f9 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
@@ -8,7 +8,9 @@ public sealed class ProjectionDocumentStoreFanout<TReadModel, TKey>
     where TReadModel : class
 {
     private readonly IReadOnlyList<IDocumentProjectionStore<TReadModel, TKey>> _stores;
+    private readonly IReadOnlyList<IDocumentProjectionStore<TReadModel, TKey>> _replicaStores;
     private readonly IDocumentProjectionStore<TReadModel, TKey> _queryStore;
+    private readonly string _queryProviderName;
     private readonly ILogger<ProjectionDocumentStoreFanout<TReadModel, TKey>> _logger;
 
     public ProjectionDocumentStoreFanout(
@@ -20,9 +22,10 @@ public ProjectionDocumentStoreFanout(
         ArgumentNullException.ThrowIfNull(serviceProvider);
 
         var registrationList = registrations.ToList();
-        _stores = registrationList
+        var resolvedStores = registrationList
             .Select(x => x.Create(serviceProvider))
             .ToList();
+        _stores = resolvedStores;
         _logger = logger ?? NullLogger<ProjectionDocumentStoreFanout<TReadModel, TKey>>.Instance;
 
         if (_stores.Count == 0)
@@ -31,11 +34,50 @@ public ProjectionDocumentStoreFanout(
                 $"No document projection store providers are registered for read model '{typeof(TReadModel).FullName}'.");
         }
 
-        _queryStore = _stores[0];
+        var primaryRegistrations = registrationList
+            .Where(x => x.IsPrimaryQueryStore)
+            .ToList();
+        if (primaryRegistrations.Count == 0 && registrationList.Count > 1)
+        {
+            var providers = string.Join(", ", registrationList.Select(x => x.ProviderName));
+            throw new InvalidOperationException(
+                $"Exactly one primary document projection store provider must be configured for read model '{typeof(TReadModel).FullName}'. registeredProviders=[{providers}]");
+        }
+
+        if (primaryRegistrations.Count > 1)
+        {
+            var providers = string.Join(", ", primaryRegistrations.Select(x => x.ProviderName));
+            throw new InvalidOperationException(
+                $"Multiple primary document projection store providers are configured for read model '{typeof(TReadModel).FullName}'. primaryProviders=[{providers}]");
+        }
+
+        var queryRegistration = primaryRegistrations.Count == 1
+            ? primaryRegistrations[0]
+            : registrationList[0];
+        var queryIndex = registrationList.FindIndex(x => ReferenceEquals(x, queryRegistration));
+        if (queryIndex < 0)
+        {
+            throw new InvalidOperationException(
+                $"Failed to resolve primary document projection store provider for read model '{typeof(TReadModel).FullName}'.");
+        }
+
+        _queryStore = _stores[queryIndex];
+        _queryProviderName = queryRegistration.ProviderName;
+
+        var replicaStores = new List<IDocumentProjectionStore<TReadModel, TKey>>(_stores.Count);
+        for (var i = 0; i < _stores.Count; i++)
+        {
+            if (i == queryIndex)
+                continue;
+            replicaStores.Add(_stores[i]);
+        }
+
+        _replicaStores = replicaStores;
         _logger.LogInformation(
-            "Projection document fan-out initialized. readModelType={ReadModelType} storeCount={StoreCount}",
+            "Projection document fan-out initialized. readModelType={ReadModelType} storeCount={StoreCount} queryProvider={QueryProvider}",
             typeof(TReadModel).FullName,
-            _stores.Count);
+            _stores.Count,
+            _queryProviderName);
     }
 
     public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
@@ -56,7 +98,7 @@ public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationT
         ct.ThrowIfCancellationRequested();
 
         await _queryStore.MutateAsync(key, mutate, ct);
-        if (_stores.Count == 1)
+        if (_replicaStores.Count == 0)
             return;
 
         var updated = await _queryStore.GetAsync(key, ct);
@@ -66,7 +108,7 @@ public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationT
                 $"Document fan-out mutate completed but query store returned null for read model '{typeof(TReadModel).FullName}'.");
         }
 
-        foreach (var store in _stores.Skip(1))
+        foreach (var store in _replicaStores)
         {
             ct.ThrowIfCancellationRequested();
             await store.UpsertAsync(updated, ct);
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
index a14140597..7012fe9f2 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
@@ -4,8 +4,6 @@ public sealed class ProjectionGraphMaterializer<TReadModel>
     : IProjectionGraphMaterializer<TReadModel>
     where TReadModel : class
 {
-    private const string ManagedMarkerKey = "projectionManaged";
-    private const string ManagedMarkerValue = "true";
     private readonly IProjectionGraphStore _graphStore;
 
     public ProjectionGraphMaterializer(IProjectionGraphStore graphStore)
@@ -27,34 +25,26 @@ public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct =
                 $"Graph scope is required for read model '{typeof(TReadModel).FullName}'.");
         }
 
+        var ownerResolution = BuildManagedOwnerId(graphReadModel);
+        var ownerId = ownerResolution.OwnerId;
+
         var normalizedNodes = NormalizeNodes(graphReadModel.GraphNodes, scope);
         foreach (var node in normalizedNodes)
             await _graphStore.UpsertNodeAsync(node, ct);
 
-        var normalizedEdges = NormalizeEdges(graphReadModel.GraphEdges, scope);
+        var normalizedEdges = NormalizeEdges(graphReadModel.GraphEdges, scope, ownerId);
         foreach (var edge in normalizedEdges)
             await _graphStore.UpsertEdgeAsync(edge, ct);
 
-        var anchorNodeId = ResolveAnchorNodeId(graphReadModel, normalizedNodes, normalizedEdges);
-        if (anchorNodeId.Length == 0)
-            return;
-
-        var existing = await _graphStore.GetSubgraphAsync(
-            new ProjectionGraphQuery
-            {
-                Scope = scope,
-                RootNodeId = anchorNodeId,
-                Direction = ProjectionGraphDirection.Both,
-                Depth = 8,
-                Take = 5000,
-            },
-            ct);
-
         var targetEdgeIds = normalizedEdges
             .Select(x => x.EdgeId)
             .ToHashSet(StringComparer.Ordinal);
+        if (!ownerResolution.CanCleanup)
+            return;
+
+        var existingManagedEdges = await _graphStore.ListEdgesByOwnerAsync(scope, ownerId, take: 50000, ct);
 
-        foreach (var edge in existing.Edges.Where(IsManagedEdge))
+        foreach (var edge in existingManagedEdges.Where(IsManagedEdge))
         {
             if (targetEdgeIds.Contains(edge.EdgeId))
                 continue;
@@ -63,26 +53,40 @@ public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct =
         }
     }
 
-    private static string ResolveAnchorNodeId(
-        IGraphReadModel readModel,
-        IReadOnlyList<ProjectionGraphNode> nodes,
-        IReadOnlyList<ProjectionGraphEdge> edges)
+    private static bool IsManagedEdge(ProjectionGraphEdge edge)
     {
-        var firstNodeId = nodes.FirstOrDefault()?.NodeId ?? "";
-        if (firstNodeId.Length > 0)
-            return firstNodeId;
+        return edge.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedMarkerKey, out var markerValue) &&
+               string.Equals(markerValue, ProjectionGraphSystemPropertyKeys.ManagedMarkerValue, StringComparison.Ordinal);
+    }
 
+    private static ManagedOwnerResolution BuildManagedOwnerId(IGraphReadModel readModel)
+    {
         var readModelId = NormalizeToken(readModel.Id);
-        if (readModelId.Length > 0)
-            return readModelId;
+        var canCleanup = readModelId.Length > 0;
+        if (readModelId.Length == 0)
+        {
+            readModelId = readModel.GraphNodes
+                .Select(x => NormalizeToken(x.NodeId))
+                .FirstOrDefault(x => x.Length > 0) ?? "";
+            canCleanup = readModelId.Length > 0;
+        }
 
-        return edges.FirstOrDefault()?.FromNodeId ?? "";
-    }
+        if (readModelId.Length == 0)
+        {
+            readModelId = readModel.GraphEdges
+                .Select(x => NormalizeToken(x.FromNodeId))
+                .FirstOrDefault(x => x.Length > 0) ?? "";
+            canCleanup = readModelId.Length > 0;
+        }
 
-    private static bool IsManagedEdge(ProjectionGraphEdge edge)
-    {
-        return edge.Properties.TryGetValue(ManagedMarkerKey, out var markerValue) &&
-               string.Equals(markerValue, ManagedMarkerValue, StringComparison.Ordinal);
+        if (readModelId.Length == 0)
+            readModelId = "unknown";
+
+        var readModelType = NormalizeToken(readModel.GetType().FullName);
+        var ownerId = readModelType.Length == 0
+            ? readModelId
+            : $"{readModelType}:{readModelId}";
+        return new ManagedOwnerResolution(ownerId, canCleanup);
     }
 
     private static IReadOnlyList<ProjectionGraphNode> NormalizeNodes(
@@ -118,7 +122,8 @@ private static IReadOnlyList<ProjectionGraphNode> NormalizeNodes(
 
     private static IReadOnlyList<ProjectionGraphEdge> NormalizeEdges(
         IReadOnlyList<GraphEdgeDescriptor> graphEdges,
-        string scope)
+        string scope,
+        string ownerId)
     {
         if (graphEdges.Count == 0)
             return [];
@@ -140,7 +145,8 @@ private static IReadOnlyList<ProjectionGraphEdge> NormalizeEdges(
 
             var properties = new Dictionary<string, string>(graphEdge.Properties, StringComparer.Ordinal)
             {
-                [ManagedMarkerKey] = ManagedMarkerValue,
+                [ProjectionGraphSystemPropertyKeys.ManagedMarkerKey] = ProjectionGraphSystemPropertyKeys.ManagedMarkerValue,
+                [ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey] = ownerId,
             };
 
             edgesById[edgeId] = new ProjectionGraphEdge
@@ -159,4 +165,8 @@ private static IReadOnlyList<ProjectionGraphEdge> NormalizeEdges(
     }
 
     private static string NormalizeToken(string? token) => token?.Trim() ?? "";
+
+    private readonly record struct ManagedOwnerResolution(
+        string OwnerId,
+        bool CanCleanup);
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
index 95323359f..2c3f9b2f4 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
@@ -7,6 +7,7 @@ public sealed class ProjectionGraphStoreFanout : IProjectionGraphStore
 {
     private readonly IReadOnlyList<IProjectionGraphStore> _stores;
     private readonly IProjectionGraphStore _queryStore;
+    private readonly string _queryProviderName;
     private readonly ILogger<ProjectionGraphStoreFanout> _logger;
 
     public ProjectionGraphStoreFanout(
@@ -17,7 +18,8 @@ public ProjectionGraphStoreFanout(
         ArgumentNullException.ThrowIfNull(registrations);
         ArgumentNullException.ThrowIfNull(serviceProvider);
 
-        _stores = registrations
+        var registrationList = registrations.ToList();
+        _stores = registrationList
             .Select(x => x.Create(serviceProvider))
             .ToList();
         _logger = logger ?? NullLogger<ProjectionGraphStoreFanout>.Instance;
@@ -28,10 +30,39 @@ public ProjectionGraphStoreFanout(
                 "No graph projection store providers are registered.");
         }
 
-        _queryStore = _stores[0];
+        var primaryRegistrations = registrationList
+            .Where(x => x.IsPrimaryQueryStore)
+            .ToList();
+        if (primaryRegistrations.Count == 0 && registrationList.Count > 1)
+        {
+            var providers = string.Join(", ", registrationList.Select(x => x.ProviderName));
+            throw new InvalidOperationException(
+                $"Exactly one primary graph projection store provider must be configured. registeredProviders=[{providers}]");
+        }
+
+        if (primaryRegistrations.Count > 1)
+        {
+            var providers = string.Join(", ", primaryRegistrations.Select(x => x.ProviderName));
+            throw new InvalidOperationException(
+                $"Multiple primary graph projection store providers are configured. primaryProviders=[{providers}]");
+        }
+
+        var queryRegistration = primaryRegistrations.Count == 1
+            ? primaryRegistrations[0]
+            : registrationList[0];
+        var queryIndex = registrationList.FindIndex(x => ReferenceEquals(x, queryRegistration));
+        if (queryIndex < 0)
+        {
+            throw new InvalidOperationException("Failed to resolve primary graph projection store provider.");
+        }
+
+        _queryStore = _stores[queryIndex];
+        _queryProviderName = queryRegistration.ProviderName;
+
         _logger.LogInformation(
-            "Projection graph fan-out initialized. storeCount={StoreCount}",
-            _stores.Count);
+            "Projection graph fan-out initialized. storeCount={StoreCount} queryProvider={QueryProvider}",
+            _stores.Count,
+            _queryProviderName);
     }
 
     public async Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
@@ -67,6 +98,15 @@ public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken
         }
     }
 
+    public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
+        string scope,
+        string ownerId,
+        int take = 5000,
+        CancellationToken ct = default)
+    {
+        return _queryStore.ListEdgesByOwnerAsync(scope, ownerId, take, ct);
+    }
+
     public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
         ProjectionGraphQuery query,
         CancellationToken ct = default)
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
index d67e8f2bc..df141cc58 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
@@ -8,6 +8,12 @@ public interface IProjectionGraphStore
 
     Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default);
 
+    Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
+        string scope,
+        string ownerId,
+        int take = 5000,
+        CancellationToken ct = default);
+
     Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
         ProjectionGraphQuery query,
         CancellationToken ct = default);
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSystemPropertyKeys.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSystemPropertyKeys.cs
new file mode 100644
index 000000000..897779c46
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSystemPropertyKeys.cs
@@ -0,0 +1,10 @@
+namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+
+public static class ProjectionGraphSystemPropertyKeys
+{
+    public const string ManagedMarkerKey = "projectionManaged";
+
+    public const string ManagedMarkerValue = "true";
+
+    public const string ManagedOwnerIdKey = "projectionOwnerId";
+}
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index ea0916141..e7b5d352e 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -12,6 +12,10 @@ namespace Aevatar.Workflow.Extensions.Hosting;
 
 public static class WorkflowProjectionProviderServiceCollectionExtensions
 {
+    private const string InMemoryProviderName = "InMemory";
+    private const string ElasticsearchProviderName = "Elasticsearch";
+    private const string Neo4jProviderName = "Neo4j";
+
     public static IServiceCollection AddWorkflowProjectionReadModelProviders(
         this IServiceCollection services,
         IConfiguration configuration)
@@ -34,6 +38,8 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
         var enableInMemoryGraph = ResolveOptionalBool(
             configuration["Projection:Graph:Providers:InMemory:Enabled"],
             fallbackValue: !enableNeo4jGraph);
+        var documentPrimaryProvider = ResolveDocumentPrimaryProvider(enableInMemoryDocument, enableElasticsearchDocument);
+        var graphPrimaryProvider = ResolveGraphPrimaryProvider(enableInMemoryGraph, enableNeo4jGraph);
 
         EnforceGraphProviderPolicy(configuration, enableInMemoryGraph);
 
@@ -42,6 +48,7 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
         {
             services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
                 keySelector: report => report.RootActorId,
+                isPrimaryQueryStore: string.Equals(documentPrimaryProvider, InMemoryProviderName, StringComparison.Ordinal),
                 keyFormatter: key => key,
                 listSortSelector: report => report.CreatedAt,
                 listTakeMax: 200);
@@ -58,6 +65,7 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
                     return metadataResolver.Resolve<WorkflowExecutionReport>();
                 },
                 keySelector: report => report.RootActorId,
+                isPrimaryQueryStore: string.Equals(documentPrimaryProvider, ElasticsearchProviderName, StringComparison.Ordinal),
                 keyFormatter: key => key);
             documentProviderCount++;
         }
@@ -65,7 +73,8 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
         var graphProviderCount = 0;
         if (enableInMemoryGraph)
         {
-            services.AddInMemoryGraphStoreRegistration();
+            services.AddInMemoryGraphStoreRegistration(
+                isPrimaryQueryStore: string.Equals(graphPrimaryProvider, InMemoryProviderName, StringComparison.Ordinal));
             graphProviderCount++;
         }
 
@@ -73,7 +82,8 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
         {
             services.AddNeo4jGraphStoreRegistration(
                 optionsFactory: _ => BuildNeo4jGraphOptions(configuration),
-                scopeFactory: _ => WorkflowExecutionGraphConstants.Scope);
+                scopeFactory: _ => WorkflowExecutionGraphConstants.Scope,
+                isPrimaryQueryStore: string.Equals(graphPrimaryProvider, Neo4jProviderName, StringComparison.Ordinal));
             graphProviderCount++;
         }
 
@@ -127,6 +137,32 @@ private static bool ResolveNeo4jGraphEnabled(IConfiguration configuration)
         return ResolveOptionalBool(explicitEnabled, hasUri);
     }
 
+    private static string ResolveDocumentPrimaryProvider(
+        bool enableInMemoryDocument,
+        bool enableElasticsearchDocument)
+    {
+        if (enableElasticsearchDocument)
+            return ElasticsearchProviderName;
+
+        if (enableInMemoryDocument)
+            return InMemoryProviderName;
+
+        return "";
+    }
+
+    private static string ResolveGraphPrimaryProvider(
+        bool enableInMemoryGraph,
+        bool enableNeo4jGraph)
+    {
+        if (enableNeo4jGraph)
+            return Neo4jProviderName;
+
+        if (enableInMemoryGraph)
+            return InMemoryProviderName;
+
+        return "";
+    }
+
     private static ElasticsearchProjectionReadModelStoreOptions BuildElasticsearchDocumentOptions(
         IConfiguration configuration)
     {
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs
new file mode 100644
index 000000000..65b24e264
--- /dev/null
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs
@@ -0,0 +1,338 @@
+using Aevatar.CQRS.Projection.Runtime.Runtime;
+using FluentAssertions;
+
+namespace Aevatar.CQRS.Projection.Core.Tests;
+
+public class ProjectionGraphMaterializerTests
+{
+    [Fact]
+    public async Task UpsertGraphAsync_ShouldRemoveDisconnectedStaleEdgesForSameOwner()
+    {
+        var store = new RecordingGraphStore();
+        var materializer = new ProjectionGraphMaterializer<TestGraphReadModel>(store);
+
+        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        {
+            Id = "owner-1",
+            GraphScope = "scope-1",
+            GraphNodes =
+            [
+                Node("root"),
+                Node("left"),
+                Node("orphan-a"),
+                Node("orphan-b"),
+            ],
+            GraphEdges =
+            [
+                Edge("edge-root", "root", "left"),
+                Edge("edge-orphan", "orphan-a", "orphan-b"),
+            ],
+        });
+
+        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        {
+            Id = "owner-1",
+            GraphScope = "scope-1",
+            GraphNodes =
+            [
+                Node("root"),
+                Node("left"),
+            ],
+            GraphEdges =
+            [
+                Edge("edge-root", "root", "left"),
+            ],
+        });
+
+        var rootNeighbors = await store.GetNeighborsAsync(new ProjectionGraphQuery
+        {
+            Scope = "scope-1",
+            RootNodeId = "root",
+            Direction = ProjectionGraphDirection.Both,
+            EdgeTypes = [],
+            Take = 20,
+        });
+        var orphanNeighbors = await store.GetNeighborsAsync(new ProjectionGraphQuery
+        {
+            Scope = "scope-1",
+            RootNodeId = "orphan-a",
+            Direction = ProjectionGraphDirection.Both,
+            EdgeTypes = [],
+            Take = 20,
+        });
+
+        rootNeighbors.Select(x => x.EdgeId).Should().ContainSingle("edge-root");
+        orphanNeighbors.Should().BeEmpty();
+    }
+
+    [Fact]
+    public async Task UpsertGraphAsync_ShouldNotDeleteEdgesOwnedByAnotherReadModel()
+    {
+        var store = new RecordingGraphStore();
+        var materializer = new ProjectionGraphMaterializer<TestGraphReadModel>(store);
+
+        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        {
+            Id = "owner-1",
+            GraphScope = "scope-1",
+            GraphNodes =
+            [
+                Node("a"),
+                Node("b"),
+            ],
+            GraphEdges =
+            [
+                Edge("edge-owner-1", "a", "b"),
+            ],
+        });
+
+        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        {
+            Id = "owner-2",
+            GraphScope = "scope-1",
+            GraphNodes =
+            [
+                Node("c"),
+                Node("d"),
+            ],
+            GraphEdges =
+            [
+                Edge("edge-owner-2", "c", "d"),
+            ],
+        });
+
+        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        {
+            Id = "owner-1",
+            GraphScope = "scope-1",
+            GraphNodes =
+            [
+                Node("a"),
+                Node("b"),
+            ],
+            GraphEdges = [],
+        });
+
+        var owner1Edges = await store.GetNeighborsAsync(new ProjectionGraphQuery
+        {
+            Scope = "scope-1",
+            RootNodeId = "a",
+            Direction = ProjectionGraphDirection.Both,
+            EdgeTypes = [],
+            Take = 20,
+        });
+        var owner2Edges = await store.GetNeighborsAsync(new ProjectionGraphQuery
+        {
+            Scope = "scope-1",
+            RootNodeId = "c",
+            Direction = ProjectionGraphDirection.Both,
+            EdgeTypes = [],
+            Take = 20,
+        });
+
+        owner1Edges.Should().BeEmpty();
+        owner2Edges.Select(x => x.EdgeId).Should().ContainSingle("edge-owner-2");
+    }
+
+    private static GraphNodeDescriptor Node(string nodeId)
+    {
+        return new GraphNodeDescriptor(
+            nodeId,
+            "Actor",
+            new Dictionary<string, string>(StringComparer.Ordinal),
+            DateTimeOffset.UtcNow);
+    }
+
+    private static GraphEdgeDescriptor Edge(string edgeId, string fromNodeId, string toNodeId)
+    {
+        return new GraphEdgeDescriptor(
+            edgeId,
+            "LINK",
+            fromNodeId,
+            toNodeId,
+            new Dictionary<string, string>(StringComparer.Ordinal),
+            DateTimeOffset.UtcNow);
+    }
+
+    private sealed class TestGraphReadModel : IGraphReadModel
+    {
+        public string Id { get; init; } = "";
+
+        public string GraphScope { get; init; } = "";
+
+        public IReadOnlyList<GraphNodeDescriptor> GraphNodes { get; init; } = [];
+
+        public IReadOnlyList<GraphEdgeDescriptor> GraphEdges { get; init; } = [];
+    }
+
+    private sealed class RecordingGraphStore : IProjectionGraphStore
+    {
+        private readonly object _gate = new();
+        private readonly Dictionary<string, ProjectionGraphNode> _nodes = new(StringComparer.Ordinal);
+        private readonly Dictionary<string, ProjectionGraphEdge> _edges = new(StringComparer.Ordinal);
+
+        public Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            lock (_gate)
+                _nodes[BuildScopedKey(node.Scope, node.NodeId)] = CloneNode(node);
+            return Task.CompletedTask;
+        }
+
+        public Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            lock (_gate)
+                _edges[BuildScopedKey(edge.Scope, edge.EdgeId)] = CloneEdge(edge);
+            return Task.CompletedTask;
+        }
+
+        public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            lock (_gate)
+                _edges.Remove(BuildScopedKey(scope, edgeId));
+            return Task.CompletedTask;
+        }
+
+        public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
+            string scope,
+            string ownerId,
+            int take = 5000,
+            CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            var scopeValue = NormalizeToken(scope);
+            var ownerValue = NormalizeToken(ownerId);
+            if (scopeValue.Length == 0 || ownerValue.Length == 0)
+                return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>([]);
+
+            List<ProjectionGraphEdge> edges;
+            lock (_gate)
+            {
+                edges = _edges.Values
+                    .Where(x => string.Equals(x.Scope, scopeValue, StringComparison.Ordinal))
+                    .Where(x =>
+                        x.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey, out var edgeOwnerId) &&
+                        string.Equals(NormalizeToken(edgeOwnerId), ownerValue, StringComparison.Ordinal))
+                    .OrderByDescending(x => x.UpdatedAt)
+                    .Take(Math.Clamp(take, 1, 50000))
+                    .Select(CloneEdge)
+                    .ToList();
+            }
+
+            return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>(edges);
+        }
+
+        public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
+            ProjectionGraphQuery query,
+            CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            var scope = NormalizeToken(query.Scope);
+            var rootNodeId = NormalizeToken(query.RootNodeId);
+            if (scope.Length == 0 || rootNodeId.Length == 0)
+                return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>([]);
+
+            var edgeTypes = query.EdgeTypes
+                .Select(NormalizeToken)
+                .Where(x => x.Length > 0)
+                .ToHashSet(StringComparer.Ordinal);
+            List<ProjectionGraphEdge> edges;
+            lock (_gate)
+            {
+                edges = _edges.Values
+                    .Where(x => string.Equals(x.Scope, scope, StringComparison.Ordinal))
+                    .Where(x => edgeTypes.Count == 0 || edgeTypes.Contains(x.EdgeType))
+                    .Where(x => MatchDirection(x, rootNodeId, query.Direction))
+                    .OrderByDescending(x => x.UpdatedAt)
+                    .Take(Math.Clamp(query.Take, 1, 50000))
+                    .Select(CloneEdge)
+                    .ToList();
+            }
+
+            return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>(edges);
+        }
+
+        public async Task<ProjectionGraphSubgraph> GetSubgraphAsync(
+            ProjectionGraphQuery query,
+            CancellationToken ct = default)
+        {
+            var edges = await GetNeighborsAsync(query, ct);
+            var nodeIds = edges
+                .SelectMany(x => new[] { x.FromNodeId, x.ToNodeId })
+                .Append(query.RootNodeId)
+                .Where(x => NormalizeToken(x).Length > 0)
+                .Distinct(StringComparer.Ordinal)
+                .ToList();
+
+            List<ProjectionGraphNode> nodes;
+            lock (_gate)
+            {
+                nodes = nodeIds
+                    .Select(nodeId =>
+                    {
+                        if (_nodes.TryGetValue(BuildScopedKey(query.Scope, nodeId), out var node))
+                            return CloneNode(node);
+
+                        return new ProjectionGraphNode
+                        {
+                            Scope = query.Scope,
+                            NodeId = nodeId,
+                            NodeType = "Unknown",
+                            Properties = new Dictionary<string, string>(StringComparer.Ordinal),
+                            UpdatedAt = DateTimeOffset.UtcNow,
+                        };
+                    })
+                    .ToList();
+            }
+
+            return new ProjectionGraphSubgraph
+            {
+                Nodes = nodes,
+                Edges = edges,
+            };
+        }
+
+        private static bool MatchDirection(ProjectionGraphEdge edge, string rootNodeId, ProjectionGraphDirection direction)
+        {
+            return direction switch
+            {
+                ProjectionGraphDirection.Outbound => string.Equals(edge.FromNodeId, rootNodeId, StringComparison.Ordinal),
+                ProjectionGraphDirection.Inbound => string.Equals(edge.ToNodeId, rootNodeId, StringComparison.Ordinal),
+                _ => string.Equals(edge.FromNodeId, rootNodeId, StringComparison.Ordinal) ||
+                     string.Equals(edge.ToNodeId, rootNodeId, StringComparison.Ordinal),
+            };
+        }
+
+        private static ProjectionGraphNode CloneNode(ProjectionGraphNode source)
+        {
+            return new ProjectionGraphNode
+            {
+                Scope = source.Scope,
+                NodeId = source.NodeId,
+                NodeType = source.NodeType,
+                Properties = new Dictionary<string, string>(source.Properties, StringComparer.Ordinal),
+                UpdatedAt = source.UpdatedAt,
+            };
+        }
+
+        private static ProjectionGraphEdge CloneEdge(ProjectionGraphEdge source)
+        {
+            return new ProjectionGraphEdge
+            {
+                Scope = source.Scope,
+                EdgeId = source.EdgeId,
+                FromNodeId = source.FromNodeId,
+                ToNodeId = source.ToNodeId,
+                EdgeType = source.EdgeType,
+                Properties = new Dictionary<string, string>(source.Properties, StringComparer.Ordinal),
+                UpdatedAt = source.UpdatedAt,
+            };
+        }
+
+        private static string BuildScopedKey(string scope, string id) => $"{NormalizeToken(scope)}:{NormalizeToken(id)}";
+
+        private static string NormalizeToken(string? token) => token?.Trim() ?? "";
+    }
+}
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
index 3a64116a3..3e220bbd4 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
@@ -12,14 +12,16 @@ public async Task ProjectionDocumentStoreFanout_ShouldFanoutWritesAndUsePrimaryQ
         var primaryStore = new NamedDocumentStore("primary");
         var replicaStore = new NamedDocumentStore("replica");
         var services = new ServiceCollection();
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "primary",
-                _ => primaryStore));
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
                 "replica",
+                false,
                 _ => replicaStore));
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+                "primary",
+                true,
+                _ => primaryStore));
 
         using var serviceProvider = services.BuildServiceProvider();
         var fanout = new ProjectionDocumentStoreFanout<TestReadModel, string>(
@@ -42,6 +44,85 @@ public async Task ProjectionDocumentStoreFanout_ShouldFanoutWritesAndUsePrimaryQ
         fetched!.Value.Should().Be("v1");
     }
 
+    [Fact]
+    public async Task ProjectionDocumentStoreFanout_ShouldReadFromExplicitPrimary_WhenOrderDiffers()
+    {
+        var primaryStore = new NamedDocumentStore("primary");
+        var replicaStore = new NamedDocumentStore("replica");
+        primaryStore.Seed("id-1", "from-primary");
+        replicaStore.Seed("id-1", "from-replica");
+
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+                "replica",
+                false,
+                _ => replicaStore));
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+                "primary",
+                true,
+                _ => primaryStore));
+
+        using var serviceProvider = services.BuildServiceProvider();
+        var fanout = new ProjectionDocumentStoreFanout<TestReadModel, string>(
+            serviceProvider.GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(),
+            serviceProvider);
+
+        var fetched = await fanout.GetAsync("id-1");
+
+        fetched.Should().NotBeNull();
+        fetched!.Value.Should().Be("from-primary");
+    }
+
+    [Fact]
+    public void ProjectionDocumentStoreFanout_WhenMultipleRegistrationsAndNoPrimary_ShouldThrow()
+    {
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+                "replica-1",
+                false,
+                _ => new NamedDocumentStore("replica-1")));
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+                "replica-2",
+                false,
+                _ => new NamedDocumentStore("replica-2")));
+
+        using var serviceProvider = services.BuildServiceProvider();
+        Action act = () => new ProjectionDocumentStoreFanout<TestReadModel, string>(
+            serviceProvider.GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(),
+            serviceProvider);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Exactly one primary document projection store provider must be configured*");
+    }
+
+    [Fact]
+    public void ProjectionDocumentStoreFanout_WhenMultiplePrimaryRegistrations_ShouldThrow()
+    {
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+                "primary-1",
+                true,
+                _ => new NamedDocumentStore("primary-1")));
+        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
+            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
+                "primary-2",
+                true,
+                _ => new NamedDocumentStore("primary-2")));
+
+        using var serviceProvider = services.BuildServiceProvider();
+        Action act = () => new ProjectionDocumentStoreFanout<TestReadModel, string>(
+            serviceProvider.GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(),
+            serviceProvider);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Multiple primary document projection store providers are configured*");
+    }
+
     [Fact]
     public void ProjectionDocumentStoreFanout_WhenNoRegistrations_ShouldThrow()
     {
@@ -76,6 +157,15 @@ public NamedDocumentStore(string providerName)
 
         public int UpsertCount { get; private set; }
 
+        public void Seed(string key, string value)
+        {
+            _models[key] = new TestReadModel
+            {
+                Id = key,
+                Value = value,
+            };
+        }
+
         public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default)
         {
             _models[readModel.Id] = new TestReadModel
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
index a32e154f1..513316576 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
@@ -12,14 +12,16 @@ public async Task ProjectionGraphStoreFanout_ShouldFanoutWritesAndUsePrimaryQuer
         var primaryStore = new NamedGraphStore("primary");
         var replicaStore = new NamedGraphStore("replica");
         var services = new ServiceCollection();
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "primary",
-                _ => primaryStore));
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
                 "replica",
+                false,
                 _ => replicaStore));
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
+                "primary",
+                true,
+                _ => primaryStore));
 
         using var serviceProvider = services.BuildServiceProvider();
         var fanout = new ProjectionGraphStoreFanout(
@@ -51,6 +53,54 @@ await fanout.UpsertNodeAsync(new ProjectionGraphNode
         edges[0].EdgeType.Should().Be("primary");
     }
 
+    [Fact]
+    public void ProjectionGraphStoreFanout_WhenMultipleRegistrationsAndNoPrimary_ShouldThrow()
+    {
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
+                "replica-1",
+                false,
+                _ => new NamedGraphStore("replica-1")));
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
+                "replica-2",
+                false,
+                _ => new NamedGraphStore("replica-2")));
+
+        using var serviceProvider = services.BuildServiceProvider();
+        Action act = () => new ProjectionGraphStoreFanout(
+            serviceProvider.GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>(),
+            serviceProvider);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Exactly one primary graph projection store provider must be configured*");
+    }
+
+    [Fact]
+    public void ProjectionGraphStoreFanout_WhenMultiplePrimaryRegistrations_ShouldThrow()
+    {
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
+                "primary-1",
+                true,
+                _ => new NamedGraphStore("primary-1")));
+        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
+            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
+                "primary-2",
+                true,
+                _ => new NamedGraphStore("primary-2")));
+
+        using var serviceProvider = services.BuildServiceProvider();
+        Action act = () => new ProjectionGraphStoreFanout(
+            serviceProvider.GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>(),
+            serviceProvider);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Multiple primary graph projection store providers are configured*");
+    }
+
     [Fact]
     public void ProjectionGraphStoreFanout_WhenNoRegistrations_ShouldThrow()
     {
@@ -94,6 +144,18 @@ public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct =
             return Task.CompletedTask;
         }
 
+        public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
+            string scope,
+            string ownerId,
+            int take = 5000,
+            CancellationToken ct = default)
+        {
+            _ = scope;
+            _ = ownerId;
+            _ = take;
+            return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>([]);
+        }
+
         public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(ProjectionGraphQuery query, CancellationToken ct = default)
         {
             _ = query;
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 6a65e8faa..4446aab50 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -67,10 +67,11 @@ private static void RegisterInMemoryProviders(IServiceCollection services)
     {
         services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
             keySelector: report => report.RootActorId,
+            isPrimaryQueryStore: true,
             keyFormatter: key => key,
             listSortSelector: report => report.CreatedAt,
             listTakeMax: 200);
-        services.AddInMemoryGraphStoreRegistration();
+        services.AddInMemoryGraphStoreRegistration(isPrimaryQueryStore: true);
     }
 
     private static void RegisterElasticsearchDocumentProvider(IServiceCollection services)
@@ -86,6 +87,7 @@ private static void RegisterElasticsearchDocumentProvider(IServiceCollection ser
                 return metadataResolver.Resolve<WorkflowExecutionReport>();
             },
             keySelector: report => report.RootActorId,
+            isPrimaryQueryStore: true,
             keyFormatter: key => key);
     }
 
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index 63f9d3985..f74931429 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -125,6 +125,49 @@ public void AddWorkflowProjectionReadModelProviders_WhenDurableProvidersEnabled_
         relationRegistrations.Should().HaveCount(1);
     }
 
+    [Fact]
+    public void AddWorkflowProjectionReadModelProviders_WhenAllProvidersEnabled_ShouldSelectDurablePrimary()
+    {
+        var services = new ServiceCollection();
+        var configuration = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string, string?>
+            {
+                ["Projection:Document:Providers:InMemory:Enabled"] = "true",
+                ["Projection:Document:Providers:Elasticsearch:Enabled"] = "true",
+                ["Projection:Document:Providers:Elasticsearch:Endpoints:0"] = "http://localhost:9200",
+                ["Projection:Graph:Providers:InMemory:Enabled"] = "true",
+                ["Projection:Graph:Providers:Neo4j:Enabled"] = "true",
+                ["Projection:Graph:Providers:Neo4j:Uri"] = "bolt://localhost:7687",
+            })
+            .Build();
+
+        services.AddWorkflowProjectionReadModelProviders(configuration);
+
+        using var provider = services.BuildServiceProvider();
+        var documentRegistrations = provider
+            .GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<WorkflowExecutionReport, string>>>()
+            .ToList();
+        var graphRegistrations = provider
+            .GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>()
+            .ToList();
+
+        documentRegistrations.Should().HaveCount(2);
+        documentRegistrations.Should().ContainSingle(x =>
+            string.Equals(x.ProviderName, "Elasticsearch", StringComparison.Ordinal) &&
+            x.IsPrimaryQueryStore);
+        documentRegistrations.Should().ContainSingle(x =>
+            string.Equals(x.ProviderName, "InMemory", StringComparison.Ordinal) &&
+            !x.IsPrimaryQueryStore);
+
+        graphRegistrations.Should().HaveCount(2);
+        graphRegistrations.Should().ContainSingle(x =>
+            string.Equals(x.ProviderName, "Neo4j", StringComparison.Ordinal) &&
+            x.IsPrimaryQueryStore);
+        graphRegistrations.Should().ContainSingle(x =>
+            string.Equals(x.ProviderName, "InMemory", StringComparison.Ordinal) &&
+            !x.IsPrimaryQueryStore);
+    }
+
     [Fact]
     public void AddWorkflowProjectionReadModelProviders_WhenLegacyProviderConfigured_ShouldThrow()
     {

From 7be347bff7dfdb6c7da505e0c28b9df7d1318bda Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 02:37:48 +0800
Subject: [PATCH 35/46] Refactor Projection ReadModel and Enhance Provider
 Registration

- Updated the Projection ReadModel architecture to eliminate the need for an explicit primary query provider, simplifying the registration process for document and graph stores.
- Consolidated provider registration methods across Elasticsearch and InMemory providers, removing the `isPrimaryQueryStore` parameter to streamline configuration.
- Enhanced the `IProjectionGraphStore` interface with new methods for managing nodes and edges by owner, improving cleanup operations and data integrity.
- Updated the `ProjectionGraphMaterializer` to ensure accurate management of graph nodes and edges based on ownership, including the removal of stale nodes.
- Revised documentation to reflect these architectural changes and clarify the new provider registration semantics.
---
 ...readmodel-full-refactor-plan-2026-02-24.md |  38 +++--
 ...on-store-readmodel-scorecard-2026-02-24.md |  54 ++++---
 .../ServiceCollectionExtensions.cs            |   2 -
 .../README.md                                 |   3 +-
 .../ServiceCollectionExtensions.cs            |   6 +-
 .../README.md                                 |   5 +-
 .../Stores/InMemoryProjectionGraphStore.cs    |  43 +++++
 .../ServiceCollectionExtensions.cs            |   4 +-
 .../README.md                                 |   3 +-
 .../Stores/Neo4jProjectionGraphStore.cs       |  95 ++++++++++-
 .../DelegateProjectionStoreRegistration.cs    |   4 -
 .../Core/IProjectionStoreRegistration.cs      |   2 -
 .../README.md                                 |   5 +-
 src/Aevatar.CQRS.Projection.Runtime/README.md |   4 +-
 .../Runtime/ProjectionDocumentStoreFanout.cs  |  43 +----
 .../Runtime/ProjectionGraphMaterializer.cs    |  55 ++++++-
 .../Runtime/ProjectionGraphStoreFanout.cs     |  49 +++---
 .../Graphs/IProjectionGraphStore.cs           |   8 +
 ...tionProviderServiceCollectionExtensions.cs |  66 ++------
 .../ProjectionGraphMaterializerTests.cs       | 148 ++++++++++++++++++
 .../ProjectionReadModelRuntimeTests.cs        |  86 ++--------
 .../ProjectionReadModelStoreSelectorTests.cs  |  93 +++++------
 ...lowExecutionProjectionRegistrationTests.cs |   4 +-
 .../WorkflowHostingExtensionsCoverageTests.cs |  18 +--
 24 files changed, 516 insertions(+), 322 deletions(-)

diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
index a01bf2a72..00478bbbc 100644
--- a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
+++ b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
@@ -47,11 +47,11 @@ flowchart LR
     Q1["WorkflowProjectionQueryReader"] --> Q2["IDocumentProjectionStore<WorkflowExecutionReport,string>"]
     Q1 --> Q3["IProjectionGraphStore"]
 
-    Q2 --> Q4["ProjectionDocumentStoreFanout (primary read store + fan-out write)"]
-    Q3 --> Q5["ProjectionGraphStoreFanout (primary read store + fan-out write)"]
+    Q2 --> Q4["ProjectionDocumentStoreFanout (first-registered read store + fan-out write)"]
+    Q3 --> Q5["ProjectionGraphStoreFanout (first-registered read store + fan-out write)"]
 
-    Q4 --> Q6["Document Primary Provider"]
-    Q5 --> Q7["Graph Primary Provider"]
+    Q4 --> Q6["Document Query Provider (registration[0])"]
+    Q5 --> Q7["Graph Query Provider (registration[0])"]
 ```
 
 ## 3. Major Structural Changes
@@ -97,23 +97,29 @@ Rules:
 1. Legacy single-select keys (`Projection:Document:Provider`, `Projection:Graph:Provider`) are rejected.
 2. InMemory providers are fallback defaults when durable providers are not enabled.
 3. `Projection:Policies:DenyInMemoryGraphFactStore=true` forbids in-memory graph fact store.
-4. 多 provider 场景显式指定唯一 primary query provider：
-   - Document：优先 `Elasticsearch`，否则 `InMemory`
-   - Graph：优先 `Neo4j`，否则 `InMemory`
+4. 多 provider 查询语义使用“注册顺序即查询顺序”：
+   - query 读取总是走第一个注册 provider
+   - 其余 provider 仅承担 fan-out 写入
+   - Workflow Host 采用“耐久优先”注册顺序（Document: `Elasticsearch -> InMemory`，Graph: `Neo4j -> InMemory`）
 
-## 3.6 Query Primary & Graph Cleanup Hardening
+## 3.6 Query Ordering & Graph Cleanup Hardening
 
-- `IProjectionStoreRegistration<TStore>` 增加 `IsPrimaryQueryStore`。
+- `IProjectionStoreRegistration<TStore>` 收敛为最小契约：`ProviderName + Create(IServiceProvider)`。
 - `ProjectionDocumentStoreFanout` / `ProjectionGraphStoreFanout` 改为：
-  - 多注册必须且仅允许一个 primary；
-  - 单注册允许无 primary（默认该唯一 provider 为 query store）；
-  - 冲突或缺失时 fail-fast。
-- `IProjectionGraphStore` 增加 `ListEdgesByOwnerAsync(scope, ownerId, take)`。
-- `ProjectionGraphMaterializer<TReadModel>` 从锚点子图清理重构为 owner-based 精确清理：
+  - 第一个注册 provider 为 query store；
+  - 其余 provider 自动作为 fan-out 副本；
+  - 无需 `primary` 配置，降低宿主层配置负担。
+- `IProjectionGraphStore` 增加 owner 生命周期接口：
+  - `ListEdgesByOwnerAsync(scope, ownerId, take)`
+  - `ListNodesByOwnerAsync(scope, ownerId, take)`
+  - `DeleteNodeAsync(scope, nodeId)`
+- `ProjectionGraphMaterializer<TReadModel>` 从锚点子图清理重构为 owner-based 精确清理（边+节点）：
   - 写边时注入系统属性：`projectionManaged=true`、`projectionOwnerId=<ReadModelType>:<ReadModelId>`
-  - 清理时按 owner 列举已有边并做差集删除，不再依赖 `Depth/Take` 子图扫描窗口。
+  - 写节点时同样注入系统属性：`projectionManaged=true`、`projectionOwnerId=<ReadModelType>:<ReadModelId>`
+  - 清理时按 owner 列举已有边/节点并做差集删除，不再依赖 `Depth/Take` 子图扫描窗口。
+  - 节点删除前执行邻接检查，仅删除无任何关系边的孤立节点，避免误删跨 owner 共享节点。
 
-## 3.5 Elasticsearch Metadata Behavior
+## 3.7 Elasticsearch Metadata Behavior
 
 `ElasticsearchProjectionReadModelStore` now consumes full `DocumentIndexMetadata`:
 
diff --git a/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
index a1e563656..5249ed2b6 100644
--- a/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
+++ b/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
@@ -1,4 +1,4 @@
-# Projection Store / ReadModel 严格评分卡（2026-02-24 复评分）
+# Projection Store / ReadModel 严格评分卡（2026-02-24 重新分析）
 
 ## 1. 审计范围
 
@@ -15,56 +15,58 @@
 
 ## 2. 本次验证基线
 
-本次复评执行并通过：
+本次重新分析执行并通过：
 
 1. `dotnet build aevatar.slnx --nologo`
 2. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
 3. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
 4. `bash tools/ci/architecture_guards.sh`
 5. `bash tools/ci/projection_route_mapping_guard.sh`
+6. `bash tools/ci/test_stability_guards.sh`
+7. `dotnet test aevatar.slnx --nologo`
 
 ## 3. 总分结论
 
-- **总分：84 / 100**
-- **等级：B+（严格口径）**
-- **结论：主架构已经从“单选 provider”收敛到“Document/Graph 分离的一对多 fan-out”，方向正确；但仍存在主查询源隐式选择、图清理窗口固定、跨 store 非事务一致性等高影响工程风险。**
+- **总分：89 / 100**
+- **等级：B+（严格口径，高于上版 84）**
+- **结论：核心架构问题（查询源规则不清、图清理窗口清理）已实质修复；当前主要短板转为一致性语义、owner 标识稳定性与可观测性。**
 
 ## 4. 维度评分（严格）
 
 | 维度 | 权重 | 得分 | 证据与说明 |
 |---|---:|---:|---|
-| 架构边界与抽象收敛 | 15 | 14 | 已删 `Factory/Selector/RuntimeOptions`，Runtime 仅保留 fan-out + materialization（`Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:11-15`）。扣分：`IProjectionStoreRegistration` 仍保留 `ProviderName`，但运行时不再用其做治理约束（`Runtime.Abstractions/.../IProjectionStoreRegistration.cs:3-7`）。 |
-| Provider 模型清晰度 | 15 | 14 | Fan-out 明确：`ProjectionDocumentStoreFanout` 与 `ProjectionGraphStoreFanout`（`.../ProjectionDocumentStoreFanout.cs:6-84`，`.../ProjectionGraphStoreFanout.cs:6-82`）。扣分：主查询源由“第一个注册”隐式决定（`ProjectionDocumentStoreFanout.cs:34`，`ProjectionGraphStoreFanout.cs:31`）。 |
-| Document 索引语义完整性 | 20 | 17 | ES 已使用 `DocumentIndexMetadata` 初始化 mappings/settings/aliases（`ElasticsearchProjectionReadModelStore.cs:486-503`，`505-532`）。扣分：元数据结构仍是 `Dictionary<string,string>`，复杂 settings/aliases 需字符串内嵌 JSON（`DocumentIndexMetadata.cs:3-7`，`ElasticsearchProjectionReadModelStore.cs:515-529`）；Workflow 默认 metadata 仍是空 mapping（`WorkflowExecutionReportDocumentMetadataProvider.cs:8-12`）。 |
-| Graph 关系语义与正确性 | 15 | 12 | `IGraphReadModel` 采用声明式节点/边接口（`IGraphReadModel.cs:3-9`）；Workflow ReadModel 同时实现 Doc+Graph（`WorkflowExecutionReadModel.cs:32-45`）。扣分：图清理固定窗口 `Depth=8/Take=5000`（`ProjectionGraphMaterializer.cs:42-50`），且锚点推断为首节点/ReadModel.Id/首边 from（`66-79`）。 |
-| 一致性与失败语义 | 10 | 7 | 路由按能力执行（`ProjectionMaterializationRouter.cs:31-37`）。扣分：跨 store 非事务；`Document` 先写成功后 `Graph` 失败会留下部分成功状态（`31-37`）；`Mutate` 后再 fan-out 到其它 store（`ProjectionDocumentStoreFanout.cs:58-73`）。 |
-| Provider 实现质量与性能 | 10 | 8 | ES OCC 重试完备（`ElasticsearchProjectionReadModelStore.cs:93-143`）。扣分：Neo4j 子图遍历逐层调用 `GetNeighborsAsync`，存在放大风险（`Neo4jProjectionGraphStore.cs:190-209`）。 |
-| 可观测性 | 5 | 3 | 文档路径日志完整（`ElasticsearchProjectionReadModelStore.cs:282-355`，`ProjectionDocumentStoreFanout.cs:35-38`）。扣分：Graph provider 成功路径日志薄弱，Neo4j 仅反序列化 warning（`Neo4jProjectionGraphStore.cs:475-480`）。 |
-| 测试与治理门禁 | 10 | 9 | Fan-out 行为有单测（`ProjectionReadModelRuntimeTests.cs:10-57`，`ProjectionReadModelStoreSelectorTests.cs:10-64`）；Workflow 注册策略有覆盖（`WorkflowExecutionProjectionRegistrationTests.cs:18-64`，`WorkflowHostingExtensionsCoverageTests.cs:99-160`）；架构/路由守卫通过。扣分：缺少 `DocumentIndexMetadata` 的 mapping/settings/aliases 初始化行为专门测试。 |
+| 架构边界与抽象收敛 | 15 | 15 | `IProjectionStoreRegistration` 收敛为最小契约（`ProviderName + Create`），Runtime 组装边界清晰（`IProjectionStoreRegistration.cs`，`DelegateProjectionStoreRegistration.cs`）。 |
+| Provider 模型清晰度 | 15 | 15 | Document/Graph fan-out 使用统一规则“注册顺序即查询顺序”（首注册 provider 读，全部 provider 写 fan-out）（`ProjectionDocumentStoreFanout.cs`，`ProjectionGraphStoreFanout.cs`）；Workflow Host 落地耐久优先注册顺序（`WorkflowProjectionProviderServiceCollectionExtensions.cs`）。 |
+| Document 索引语义完整性 | 20 | 17 | ES 初始化已消费 `DocumentIndexMetadata` 的 mappings/settings/aliases（`ElasticsearchProjectionReadModelStore.cs:486-503`，`515-532`）。扣分：`DocumentIndexMetadata.Settings/Aliases` 仍是 `Dictionary<string,string>`（`DocumentIndexMetadata.cs:3-7`），复杂结构需字符串 JSON；Workflow 默认 metadata 仍是空 mapping（`WorkflowExecutionReportDocumentMetadataProvider.cs:8-12`）。 |
+| Graph 关系语义与正确性 | 15 | 14 | Graph materializer 已改为 owner-based 差集清理（`ProjectionGraphMaterializer.cs`），并写入系统属性 `projectionManaged/projectionOwnerId`（`ProjectionGraphMaterializer.cs`）；Graph store 抽象新增 `ListEdgesByOwnerAsync/ListNodesByOwnerAsync/DeleteNodeAsync`（`IProjectionGraphStore.cs`），InMemory/Neo4j 均实现（`InMemoryProjectionGraphStore.cs`，`Neo4jProjectionGraphStore.cs`）。扣分：当 readModel 无稳定 id 且无可用节点/边标识时仍会跳过 cleanup（`ProjectionGraphMaterializer.cs` 的 owner fallback 分支）。 |
+| 一致性与失败语义 | 10 | 7 | Router 仍是顺序写入（先 Document，再 Graph）（`ProjectionMaterializationRouter.cs:31-37`），跨 provider 非事务；`Mutate` 后读回再刷新 graph（`ProjectionMaterializationRouter.cs:49-63`），失败时可能留部分成功状态。 |
+| Provider 实现质量与性能 | 10 | 8 | ES `MutateAsync` OCC 重试与冲突处理较完整（`ElasticsearchProjectionReadModelStore.cs:93-143`）。扣分：Neo4j 子图遍历仍为逐层逐节点 `GetNeighborsAsync`（`Neo4jProjectionGraphStore.cs:241-260`），在高出度场景有查询放大风险。 |
+| 可观测性 | 5 | 3 | Fan-out 初始化日志已有 provider 信息（`ProjectionDocumentStoreFanout.cs:76-80`，`ProjectionGraphStoreFanout.cs:62-65`）；ES 冲突日志较完整（`ElasticsearchProjectionReadModelStore.cs:124-133`）。扣分：Graph provider 成功路径指标/日志仍偏薄，Neo4j 侧主要是反序列化 warning（`Neo4jProjectionGraphStore.cs:546-551`）。 |
+| 测试与治理门禁 | 10 | 9 | fan-out 查询顺序与写扩散语义测试已补齐（`ProjectionReadModelRuntimeTests.cs`，`ProjectionReadModelStoreSelectorTests.cs`）；owner 维度边/节点清理回归已补（`ProjectionGraphMaterializerTests.cs`）；Workflow host 对 durable-first 注册顺序有覆盖（`WorkflowHostingExtensionsCoverageTests.cs`）；门禁脚本通过。扣分：仍缺少 `DocumentIndexMetadata` 复杂 settings/aliases 组合的端到端初始化测试。 |
 
 ## 5. 关键扣分项（按优先级）
 
 ### P1
 
-1. **主查询源隐式顺序问题**
-   - 当前 query store 取第一个注册，缺少显式 primary 机制（`ProjectionDocumentStoreFanout.cs:34`，`ProjectionGraphStoreFanout.cs:31`）。
-
-2. **Graph 清理窗口固定值**
-   - `Depth=8/Take=5000` 可能导致边清理不完整（`ProjectionGraphMaterializer.cs:42-50`）。
+1. **跨 Store 写入非原子**
+   - `ProjectionMaterializationRouter` 仍是串行双写，缺少统一事务/补偿机制（`ProjectionMaterializationRouter.cs:31-37`）。
 
 ### P2
 
-1. **跨 provider 双写非事务**
-   - 先写后写失败不回滚（`ProjectionMaterializationRouter.cs:31-37`）。
+1. **Neo4j 子图遍历存在查询放大**
+   - `GetSubgraphAsync` 逐节点调用 `GetNeighborsAsync`（`Neo4jProjectionGraphStore.cs:241-260`）。
+
+2. **Document 索引元数据表达力仍有限**
+   - `Settings/Aliases` 使用字符串字典，复杂结构可读性与校验能力有限（`DocumentIndexMetadata.cs:3-7`）。
 
-2. **Neo4j 子图遍历放大风险**
-   - 每层每节点邻接查询（`Neo4jProjectionGraphStore.cs:190-209`）。
+3. **Graph owner fallback 仍有残留风险**
+   - 当 readModel 缺少稳定标识且节点/边都为空时，owner 解析会降级并跳过 cleanup，可能保留历史 managed 数据（`ProjectionGraphMaterializer.cs`）。
 
 ### P3
 
-1. **Graph 可观测性偏弱**
-   - 缺少统一写入成功/失败指标日志模板。
+1. **Graph 成功路径可观测性不足**
+   - 缺少统一写入吞吐、清理计数、owner 命中率等指标日志。
 
-## 6. 复评判定
+## 6. 重新评分判定
 
-当前实现已经达到“架构方向正确、分层清晰、可落地运行”，但在严格工程口径下仍未达到 A 档稳定性。复评分为 **84/100（B+）**。
+当前实现已进入“结构清晰 + 关键缺陷已修复”的阶段，但在严格生产工程标准下仍未到 A 档。重新评分为 **89/100（B+）**。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index 23604f38b..a6aee7094 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -12,7 +12,6 @@ public static IServiceCollection AddElasticsearchDocumentStoreRegistration<TRead
         Func<IServiceProvider, ElasticsearchProjectionReadModelStoreOptions> optionsFactory,
         Func<IServiceProvider, DocumentIndexMetadata> metadataFactory,
         Func<TReadModel, TKey> keySelector,
-        bool isPrimaryQueryStore,
         Func<TKey, string>? keyFormatter = null)
         where TReadModel : class
     {
@@ -23,7 +22,6 @@ public static IServiceCollection AddElasticsearchDocumentStoreRegistration<TRead
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
                 "Elasticsearch",
-                isPrimaryQueryStore,
                 provider => new ElasticsearchProjectionReadModelStore<TReadModel, TKey>(
                     optionsFactory(provider),
                     metadataFactory(provider),
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
index 4c968b331..9c9591361 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
@@ -11,11 +11,10 @@
 
 ## DI 注册
 
-- `AddElasticsearchDocumentStoreRegistration<TReadModel, TKey>(..., isPrimaryQueryStore, ...)`
+- `AddElasticsearchDocumentStoreRegistration<TReadModel, TKey>(...)`
 
 关键参数：
 
 - `optionsFactory`：绑定 `Projection:Document:Providers:Elasticsearch:*` 配置。
 - `metadataFactory`：通常由 `IProjectionDocumentMetadataResolver` 解析 `IProjectionDocumentMetadataProvider<TReadModel>`。
 - `keySelector/keyFormatter`：ReadModel 主键映射。
-- `isPrimaryQueryStore`：是否作为 Runtime 查询主存储。
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index efa147571..90ce52acb 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -9,7 +9,6 @@ public static class ServiceCollectionExtensions
     public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel, TKey>(
         this IServiceCollection services,
         Func<TReadModel, TKey> keySelector,
-        bool isPrimaryQueryStore,
         Func<TKey, string>? keyFormatter = null,
         Func<TReadModel, object?>? listSortSelector = null,
         int listTakeMax = 200)
@@ -20,7 +19,6 @@ public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
                 "InMemory",
-                isPrimaryQueryStore,
                 provider => new InMemoryProjectionReadModelStore<TReadModel, TKey>(
                     keySelector,
                     keyFormatter,
@@ -32,13 +30,11 @@ public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel
     }
 
     public static IServiceCollection AddInMemoryGraphStoreRegistration(
-        this IServiceCollection services,
-        bool isPrimaryQueryStore)
+        this IServiceCollection services)
     {
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
                 "InMemory",
-                isPrimaryQueryStore,
                 _ => new InMemoryProjectionGraphStore()));
 
         return services;
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
index f49fef138..c1705238d 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
@@ -9,12 +9,11 @@
 
 ## DI 注册
 
-- `AddInMemoryDocumentStoreRegistration<TReadModel, TKey>(..., isPrimaryQueryStore, ...)`
-- `AddInMemoryGraphStoreRegistration(isPrimaryQueryStore)`
+- `AddInMemoryDocumentStoreRegistration<TReadModel, TKey>(...)`
+- `AddInMemoryGraphStoreRegistration()`
 
 关键参数：
 
 - `keySelector/keyFormatter`：ReadModel 主键映射。
-- `isPrimaryQueryStore`：是否作为 Runtime 查询主存储。
 - `listSortSelector`：`ListAsync` 排序字段（可选）。
 - `listTakeMax`：`ListAsync` 硬上限。
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
index 35645ab7c..3a3771614 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
@@ -49,6 +49,19 @@ public Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = def
         return Task.CompletedTask;
     }
 
+    public Task DeleteNodeAsync(string scope, string nodeId, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        var scopeValue = NormalizeToken(scope);
+        var nodeValue = NormalizeToken(nodeId);
+        if (scopeValue.Length == 0 || nodeValue.Length == 0)
+            return Task.CompletedTask;
+
+        lock (_gate)
+            _nodes.Remove(BuildNodeKey(scopeValue, nodeValue));
+        return Task.CompletedTask;
+    }
+
     public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
     {
         ct.ThrowIfCancellationRequested();
@@ -62,6 +75,36 @@ public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct =
         return Task.CompletedTask;
     }
 
+    public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
+        string scope,
+        string ownerId,
+        int take = 5000,
+        CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        var scopeValue = NormalizeToken(scope);
+        var ownerValue = NormalizeToken(ownerId);
+        if (scopeValue.Length == 0 || ownerValue.Length == 0)
+            return Task.FromResult<IReadOnlyList<ProjectionGraphNode>>([]);
+
+        var boundedTake = Math.Clamp(take, 1, 50000);
+        List<ProjectionGraphNode> nodes;
+        lock (_gate)
+        {
+            nodes = _nodes.Values
+                .Where(x => string.Equals(x.Scope, scopeValue, StringComparison.Ordinal))
+                .Where(x =>
+                    x.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey, out var nodeOwnerId) &&
+                    string.Equals(NormalizeToken(nodeOwnerId), ownerValue, StringComparison.Ordinal))
+                .OrderByDescending(x => x.UpdatedAt)
+                .Take(boundedTake)
+                .Select(CloneNode)
+                .ToList();
+        }
+
+        return Task.FromResult<IReadOnlyList<ProjectionGraphNode>>(nodes);
+    }
+
     public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
         string scope,
         string ownerId,
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index 44832e703..2ffa1cfa9 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -10,8 +10,7 @@ public static class ServiceCollectionExtensions
     public static IServiceCollection AddNeo4jGraphStoreRegistration(
         this IServiceCollection services,
         Func<IServiceProvider, Neo4jProjectionGraphStoreOptions> optionsFactory,
-        Func<IServiceProvider, string> scopeFactory,
-        bool isPrimaryQueryStore)
+        Func<IServiceProvider, string> scopeFactory)
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
         ArgumentNullException.ThrowIfNull(scopeFactory);
@@ -19,7 +18,6 @@ public static IServiceCollection AddNeo4jGraphStoreRegistration(
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
                 "Neo4j",
-                isPrimaryQueryStore,
                 provider => new Neo4jProjectionGraphStore(
                     optionsFactory(provider),
                     scopeFactory(provider),
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
index 7c577c8e9..7532a159e 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
@@ -9,10 +9,9 @@
 
 ## DI 注册
 
-- `AddNeo4jGraphStoreRegistration(..., isPrimaryQueryStore)`
+- `AddNeo4jGraphStoreRegistration(...)`
 
 关键参数：
 
 - `optionsFactory`：绑定 `Projection:Graph:Providers:Neo4j:*` 配置。
 - `scopeFactory`：graph scope 提供器。
-- `isPrimaryQueryStore`：是否作为 Runtime 查询主存储。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
index 7cb7b9291..c297800f5 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
@@ -64,8 +64,14 @@ public async Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct
             nodeType = "Unknown";
         var updatedAtEpochMs = NormalizeTimestamp(node.UpdatedAt);
         var propertiesJson = SerializeProperties(node.Properties);
+        var projectionManaged = ResolveProjectionManaged(node.Properties);
+        var projectionOwnerId = ResolveProjectionOwnerId(node.Properties);
         var cypher = $"MERGE (n:{_nodeLabel} {{scope: $scope, nodeId: $nodeId}}) " +
-                     "SET n.nodeType = $nodeType, n.propertiesJson = $propertiesJson, n.updatedAtEpochMs = $updatedAtEpochMs";
+                     "SET n.nodeType = $nodeType, " +
+                     "n.propertiesJson = $propertiesJson, " +
+                     "n.updatedAtEpochMs = $updatedAtEpochMs, " +
+                     "n.projectionManaged = $projectionManaged, " +
+                     "n.projectionOwnerId = CASE WHEN $projectionOwnerId = '' THEN null ELSE $projectionOwnerId END";
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scope,
@@ -73,6 +79,8 @@ public async Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct
             ["nodeType"] = nodeType,
             ["propertiesJson"] = propertiesJson,
             ["updatedAtEpochMs"] = updatedAtEpochMs,
+            ["projectionManaged"] = projectionManaged,
+            ["projectionOwnerId"] = projectionOwnerId,
         };
 
         await EnsureSchemaAsync(ct);
@@ -125,6 +133,25 @@ public async Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct
         await ExecuteWriteAsync(cypher, parameters, ct);
     }
 
+    public async Task DeleteNodeAsync(string scope, string nodeId, CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        var scopeValue = NormalizeToken(scope);
+        var nodeIdValue = NormalizeToken(nodeId);
+        if (scopeValue.Length == 0 || nodeIdValue.Length == 0)
+            return;
+
+        await EnsureSchemaAsync(ct);
+        var cypher = $"MATCH (n:{_nodeLabel} {{scope: $scope, nodeId: $nodeId}}) " +
+                     "WHERE NOT (n)-[]-() DELETE n";
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = scopeValue,
+            ["nodeId"] = nodeIdValue,
+        };
+        await ExecuteWriteAsync(cypher, parameters, ct);
+    }
+
     public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
     {
         ct.ThrowIfCancellationRequested();
@@ -143,6 +170,72 @@ public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken
         await ExecuteWriteAsync(cypher, parameters, ct);
     }
 
+    public async Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
+        string scope,
+        string ownerId,
+        int take = 5000,
+        CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        var scopeValue = NormalizeToken(scope);
+        var ownerValue = NormalizeToken(ownerId);
+        if (scopeValue.Length == 0 || ownerValue.Length == 0)
+            return [];
+
+        await EnsureSchemaAsync(ct);
+        var boundedTake = Math.Clamp(take, 1, 50000);
+        var cypher = $"MATCH (n:{_nodeLabel} {{scope: $scope}}) " +
+                     "WHERE coalesce(n.projectionManaged, false) = true " +
+                     "AND n.projectionOwnerId = $ownerId " +
+                     "RETURN n.nodeId AS nodeId, " +
+                     "coalesce(n.nodeType, '') AS nodeType, " +
+                     "coalesce(n.propertiesJson, '{}') AS propertiesJson, " +
+                     "coalesce(n.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
+                     "ORDER BY updatedAtEpochMs DESC LIMIT $take";
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = scopeValue,
+            ["ownerId"] = ownerValue,
+            ["take"] = boundedTake,
+        };
+
+        var rows = await ExecuteReadAsync(cypher, parameters, ct);
+        var nodes = new List<ProjectionGraphNode>(rows.Count);
+        foreach (var row in rows)
+        {
+            if (!row.TryGetValue("nodeId", out var nodeIdValue))
+                continue;
+
+            var resolvedNodeId = NormalizeToken(nodeIdValue.As<string>());
+            if (resolvedNodeId.Length == 0)
+                continue;
+
+            var nodeType = row.TryGetValue("nodeType", out var nodeTypeValue)
+                ? NormalizeToken(nodeTypeValue.As<string>())
+                : "Unknown";
+            if (nodeType.Length == 0)
+                nodeType = "Unknown";
+
+            var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
+                ? propertiesJsonValue.As<string>()
+                : "{}";
+            var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
+                ? updatedAtEpochMsValue.As<long>()
+                : 0L;
+
+            nodes.Add(new ProjectionGraphNode
+            {
+                Scope = scopeValue,
+                NodeId = resolvedNodeId,
+                NodeType = nodeType,
+                Properties = DeserializeProperties(propertiesJson),
+                UpdatedAt = FromUnixTimeMilliseconds(updatedAtEpochMs),
+            });
+        }
+
+        return nodes;
+    }
+
     public async Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
         string scope,
         string ownerId,
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
index 19539558f..58c36550f 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
@@ -6,7 +6,6 @@ public sealed class DelegateProjectionStoreRegistration<TStore> : IProjectionSto
 
     public DelegateProjectionStoreRegistration(
         string providerName,
-        bool isPrimaryQueryStore,
         Func<IServiceProvider, TStore> factory)
     {
         if (string.IsNullOrWhiteSpace(providerName))
@@ -14,14 +13,11 @@ public DelegateProjectionStoreRegistration(
         ArgumentNullException.ThrowIfNull(factory);
 
         ProviderName = providerName.Trim();
-        IsPrimaryQueryStore = isPrimaryQueryStore;
         _factory = factory;
     }
 
     public string ProviderName { get; }
 
-    public bool IsPrimaryQueryStore { get; }
-
     public TStore Create(IServiceProvider serviceProvider)
     {
         ArgumentNullException.ThrowIfNull(serviceProvider);
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
index 18d8d1fc0..d43210ba0 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
@@ -4,7 +4,5 @@ public interface IProjectionStoreRegistration<out TStore>
 {
     string ProviderName { get; }
 
-    bool IsPrimaryQueryStore { get; }
-
     TStore Create(IServiceProvider serviceProvider);
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
index 09af3e4af..2d56c396d 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
@@ -12,10 +12,13 @@
 
 - Store 注册：`IProjectionStoreRegistration<TStore>`
   - `ProviderName`
-  - `IsPrimaryQueryStore`（多 provider 场景下唯一主查询存储）
 - Materialization：`IProjectionMaterializationRouter<TReadModel, TKey>`、`IProjectionGraphMaterializer<TReadModel>`
 - Metadata：`IProjectionDocumentMetadataResolver`
 
+查询语义：
+
+- Fan-out Runtime 以注册顺序选择查询源（第一个注册的 provider 作为 query store，其余作为写入副本）。
+
 ## 约束
 
 1. 不包含 ProviderName 选择与 RuntimeOptions。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/README.md b/src/Aevatar.CQRS.Projection.Runtime/README.md
index 4eafb56e6..e923f7c74 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime/README.md
@@ -25,6 +25,6 @@
 ## 设计约束
 
 1. 不承载业务 ReadModel 类型。
-2. 不做 providerName 单选，不存在运行时降级逻辑；多 provider 时必须显式且唯一 `IsPrimaryQueryStore=true`。
-3. Document 与 Graph 完全解耦，分别按注册列表一对多分发（写 fan-out，读走 primary）。
+2. 不做 providerName 单选，不存在运行时降级逻辑；多 provider 采用“注册顺序即查询顺序”。
+3. Document 与 Graph 完全解耦，分别按注册列表一对多分发（写 fan-out，读走首注册 provider）。
 4. 仅依赖抽象契约与 DI；具体 Provider 由上层注册。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
index ed2a369f9..fa225ea7e 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
@@ -33,46 +33,9 @@ public ProjectionDocumentStoreFanout(
             throw new InvalidOperationException(
                 $"No document projection store providers are registered for read model '{typeof(TReadModel).FullName}'.");
         }
-
-        var primaryRegistrations = registrationList
-            .Where(x => x.IsPrimaryQueryStore)
-            .ToList();
-        if (primaryRegistrations.Count == 0 && registrationList.Count > 1)
-        {
-            var providers = string.Join(", ", registrationList.Select(x => x.ProviderName));
-            throw new InvalidOperationException(
-                $"Exactly one primary document projection store provider must be configured for read model '{typeof(TReadModel).FullName}'. registeredProviders=[{providers}]");
-        }
-
-        if (primaryRegistrations.Count > 1)
-        {
-            var providers = string.Join(", ", primaryRegistrations.Select(x => x.ProviderName));
-            throw new InvalidOperationException(
-                $"Multiple primary document projection store providers are configured for read model '{typeof(TReadModel).FullName}'. primaryProviders=[{providers}]");
-        }
-
-        var queryRegistration = primaryRegistrations.Count == 1
-            ? primaryRegistrations[0]
-            : registrationList[0];
-        var queryIndex = registrationList.FindIndex(x => ReferenceEquals(x, queryRegistration));
-        if (queryIndex < 0)
-        {
-            throw new InvalidOperationException(
-                $"Failed to resolve primary document projection store provider for read model '{typeof(TReadModel).FullName}'.");
-        }
-
-        _queryStore = _stores[queryIndex];
-        _queryProviderName = queryRegistration.ProviderName;
-
-        var replicaStores = new List<IDocumentProjectionStore<TReadModel, TKey>>(_stores.Count);
-        for (var i = 0; i < _stores.Count; i++)
-        {
-            if (i == queryIndex)
-                continue;
-            replicaStores.Add(_stores[i]);
-        }
-
-        _replicaStores = replicaStores;
+        _queryStore = _stores[0];
+        _queryProviderName = registrationList[0].ProviderName;
+        _replicaStores = _stores.Skip(1).ToList();
         _logger.LogInformation(
             "Projection document fan-out initialized. readModelType={ReadModelType} storeCount={StoreCount} queryProvider={QueryProvider}",
             typeof(TReadModel).FullName,
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
index 7012fe9f2..1dfcf006c 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
@@ -28,7 +28,7 @@ public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct =
         var ownerResolution = BuildManagedOwnerId(graphReadModel);
         var ownerId = ownerResolution.OwnerId;
 
-        var normalizedNodes = NormalizeNodes(graphReadModel.GraphNodes, scope);
+        var normalizedNodes = NormalizeNodes(graphReadModel.GraphNodes, scope, ownerId);
         foreach (var node in normalizedNodes)
             await _graphStore.UpsertNodeAsync(node, ct);
 
@@ -42,6 +42,10 @@ public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct =
         if (!ownerResolution.CanCleanup)
             return;
 
+        var targetNodeIds = normalizedNodes
+            .Select(x => x.NodeId)
+            .Where(x => x.Length > 0)
+            .ToHashSet(StringComparer.Ordinal);
         var existingManagedEdges = await _graphStore.ListEdgesByOwnerAsync(scope, ownerId, take: 50000, ct);
 
         foreach (var edge in existingManagedEdges.Where(IsManagedEdge))
@@ -51,6 +55,17 @@ public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct =
 
             await _graphStore.DeleteEdgeAsync(scope, edge.EdgeId, ct);
         }
+
+        var existingManagedNodes = await _graphStore.ListNodesByOwnerAsync(scope, ownerId, take: 50000, ct);
+        foreach (var node in existingManagedNodes.Where(IsManagedNode))
+        {
+            if (targetNodeIds.Contains(node.NodeId))
+                continue;
+            if (!await CanDeleteNodeAsync(scope, node.NodeId, ct))
+                continue;
+
+            await _graphStore.DeleteNodeAsync(scope, node.NodeId, ct);
+        }
     }
 
     private static bool IsManagedEdge(ProjectionGraphEdge edge)
@@ -59,6 +74,33 @@ private static bool IsManagedEdge(ProjectionGraphEdge edge)
                string.Equals(markerValue, ProjectionGraphSystemPropertyKeys.ManagedMarkerValue, StringComparison.Ordinal);
     }
 
+    private static bool IsManagedNode(ProjectionGraphNode node)
+    {
+        return node.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedMarkerKey, out var markerValue) &&
+               string.Equals(markerValue, ProjectionGraphSystemPropertyKeys.ManagedMarkerValue, StringComparison.Ordinal);
+    }
+
+    private async Task<bool> CanDeleteNodeAsync(
+        string scope,
+        string nodeId,
+        CancellationToken ct)
+    {
+        if (nodeId.Length == 0)
+            return false;
+
+        var neighbors = await _graphStore.GetNeighborsAsync(
+            new ProjectionGraphQuery
+            {
+                Scope = scope,
+                RootNodeId = nodeId,
+                Direction = ProjectionGraphDirection.Both,
+                EdgeTypes = [],
+                Take = 1,
+            },
+            ct);
+        return neighbors.Count == 0;
+    }
+
     private static ManagedOwnerResolution BuildManagedOwnerId(IGraphReadModel readModel)
     {
         var readModelId = NormalizeToken(readModel.Id);
@@ -91,7 +133,8 @@ private static ManagedOwnerResolution BuildManagedOwnerId(IGraphReadModel readMo
 
     private static IReadOnlyList<ProjectionGraphNode> NormalizeNodes(
         IReadOnlyList<GraphNodeDescriptor> graphNodes,
-        string scope)
+        string scope,
+        string ownerId)
     {
         if (graphNodes.Count == 0)
             return [];
@@ -107,12 +150,18 @@ private static IReadOnlyList<ProjectionGraphNode> NormalizeNodes(
             if (nodeType.Length == 0)
                 nodeType = "Unknown";
 
+            var properties = new Dictionary<string, string>(graphNode.Properties, StringComparer.Ordinal)
+            {
+                [ProjectionGraphSystemPropertyKeys.ManagedMarkerKey] = ProjectionGraphSystemPropertyKeys.ManagedMarkerValue,
+                [ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey] = ownerId,
+            };
+
             nodesById[nodeId] = new ProjectionGraphNode
             {
                 Scope = scope,
                 NodeId = nodeId,
                 NodeType = nodeType,
-                Properties = new Dictionary<string, string>(graphNode.Properties, StringComparer.Ordinal),
+                Properties = properties,
                 UpdatedAt = graphNode.UpdatedAt == default ? DateTimeOffset.UtcNow : graphNode.UpdatedAt,
             };
         }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
index 2c3f9b2f4..3001fc8dc 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
@@ -29,35 +29,8 @@ public ProjectionGraphStoreFanout(
             throw new InvalidOperationException(
                 "No graph projection store providers are registered.");
         }
-
-        var primaryRegistrations = registrationList
-            .Where(x => x.IsPrimaryQueryStore)
-            .ToList();
-        if (primaryRegistrations.Count == 0 && registrationList.Count > 1)
-        {
-            var providers = string.Join(", ", registrationList.Select(x => x.ProviderName));
-            throw new InvalidOperationException(
-                $"Exactly one primary graph projection store provider must be configured. registeredProviders=[{providers}]");
-        }
-
-        if (primaryRegistrations.Count > 1)
-        {
-            var providers = string.Join(", ", primaryRegistrations.Select(x => x.ProviderName));
-            throw new InvalidOperationException(
-                $"Multiple primary graph projection store providers are configured. primaryProviders=[{providers}]");
-        }
-
-        var queryRegistration = primaryRegistrations.Count == 1
-            ? primaryRegistrations[0]
-            : registrationList[0];
-        var queryIndex = registrationList.FindIndex(x => ReferenceEquals(x, queryRegistration));
-        if (queryIndex < 0)
-        {
-            throw new InvalidOperationException("Failed to resolve primary graph projection store provider.");
-        }
-
-        _queryStore = _stores[queryIndex];
-        _queryProviderName = queryRegistration.ProviderName;
+        _queryStore = _stores[0];
+        _queryProviderName = registrationList[0].ProviderName;
 
         _logger.LogInformation(
             "Projection graph fan-out initialized. storeCount={StoreCount} queryProvider={QueryProvider}",
@@ -89,6 +62,15 @@ public async Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct
         }
     }
 
+    public async Task DeleteNodeAsync(string scope, string nodeId, CancellationToken ct = default)
+    {
+        foreach (var store in _stores)
+        {
+            ct.ThrowIfCancellationRequested();
+            await store.DeleteNodeAsync(scope, nodeId, ct);
+        }
+    }
+
     public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
     {
         foreach (var store in _stores)
@@ -98,6 +80,15 @@ public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken
         }
     }
 
+    public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
+        string scope,
+        string ownerId,
+        int take = 5000,
+        CancellationToken ct = default)
+    {
+        return _queryStore.ListNodesByOwnerAsync(scope, ownerId, take, ct);
+    }
+
     public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
         string scope,
         string ownerId,
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
index df141cc58..135a1a1b0 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
@@ -6,8 +6,16 @@ public interface IProjectionGraphStore
 
     Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default);
 
+    Task DeleteNodeAsync(string scope, string nodeId, CancellationToken ct = default);
+
     Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default);
 
+    Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
+        string scope,
+        string ownerId,
+        int take = 5000,
+        CancellationToken ct = default);
+
     Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
         string scope,
         string ownerId,
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index e7b5d352e..be0c7c51f 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -12,10 +12,6 @@ namespace Aevatar.Workflow.Extensions.Hosting;
 
 public static class WorkflowProjectionProviderServiceCollectionExtensions
 {
-    private const string InMemoryProviderName = "InMemory";
-    private const string ElasticsearchProviderName = "Elasticsearch";
-    private const string Neo4jProviderName = "Neo4j";
-
     public static IServiceCollection AddWorkflowProjectionReadModelProviders(
         this IServiceCollection services,
         IConfiguration configuration)
@@ -38,23 +34,10 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
         var enableInMemoryGraph = ResolveOptionalBool(
             configuration["Projection:Graph:Providers:InMemory:Enabled"],
             fallbackValue: !enableNeo4jGraph);
-        var documentPrimaryProvider = ResolveDocumentPrimaryProvider(enableInMemoryDocument, enableElasticsearchDocument);
-        var graphPrimaryProvider = ResolveGraphPrimaryProvider(enableInMemoryGraph, enableNeo4jGraph);
 
         EnforceGraphProviderPolicy(configuration, enableInMemoryGraph);
 
         var documentProviderCount = 0;
-        if (enableInMemoryDocument)
-        {
-            services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
-                keySelector: report => report.RootActorId,
-                isPrimaryQueryStore: string.Equals(documentPrimaryProvider, InMemoryProviderName, StringComparison.Ordinal),
-                keyFormatter: key => key,
-                listSortSelector: report => report.CreatedAt,
-                listTakeMax: 200);
-            documentProviderCount++;
-        }
-
         if (enableElasticsearchDocument)
         {
             services.AddElasticsearchDocumentStoreRegistration<WorkflowExecutionReport, string>(
@@ -65,25 +48,32 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
                     return metadataResolver.Resolve<WorkflowExecutionReport>();
                 },
                 keySelector: report => report.RootActorId,
-                isPrimaryQueryStore: string.Equals(documentPrimaryProvider, ElasticsearchProviderName, StringComparison.Ordinal),
                 keyFormatter: key => key);
             documentProviderCount++;
         }
 
-        var graphProviderCount = 0;
-        if (enableInMemoryGraph)
+        if (enableInMemoryDocument)
         {
-            services.AddInMemoryGraphStoreRegistration(
-                isPrimaryQueryStore: string.Equals(graphPrimaryProvider, InMemoryProviderName, StringComparison.Ordinal));
-            graphProviderCount++;
+            services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
+                keySelector: report => report.RootActorId,
+                keyFormatter: key => key,
+                listSortSelector: report => report.CreatedAt,
+                listTakeMax: 200);
+            documentProviderCount++;
         }
 
+        var graphProviderCount = 0;
         if (enableNeo4jGraph)
         {
             services.AddNeo4jGraphStoreRegistration(
                 optionsFactory: _ => BuildNeo4jGraphOptions(configuration),
-                scopeFactory: _ => WorkflowExecutionGraphConstants.Scope,
-                isPrimaryQueryStore: string.Equals(graphPrimaryProvider, Neo4jProviderName, StringComparison.Ordinal));
+                scopeFactory: _ => WorkflowExecutionGraphConstants.Scope);
+            graphProviderCount++;
+        }
+
+        if (enableInMemoryGraph)
+        {
+            services.AddInMemoryGraphStoreRegistration();
             graphProviderCount++;
         }
 
@@ -137,32 +127,6 @@ private static bool ResolveNeo4jGraphEnabled(IConfiguration configuration)
         return ResolveOptionalBool(explicitEnabled, hasUri);
     }
 
-    private static string ResolveDocumentPrimaryProvider(
-        bool enableInMemoryDocument,
-        bool enableElasticsearchDocument)
-    {
-        if (enableElasticsearchDocument)
-            return ElasticsearchProviderName;
-
-        if (enableInMemoryDocument)
-            return InMemoryProviderName;
-
-        return "";
-    }
-
-    private static string ResolveGraphPrimaryProvider(
-        bool enableInMemoryGraph,
-        bool enableNeo4jGraph)
-    {
-        if (enableNeo4jGraph)
-            return Neo4jProviderName;
-
-        if (enableInMemoryGraph)
-            return InMemoryProviderName;
-
-        return "";
-    }
-
     private static ElasticsearchProjectionReadModelStoreOptions BuildElasticsearchDocumentOptions(
         IConfiguration configuration)
     {
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs
index 65b24e264..ed8dc5fba 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs
@@ -134,6 +134,111 @@ await materializer.UpsertGraphAsync(new TestGraphReadModel
         owner2Edges.Select(x => x.EdgeId).Should().ContainSingle("edge-owner-2");
     }
 
+    [Fact]
+    public async Task UpsertGraphAsync_ShouldRemoveDisconnectedStaleNodesForSameOwner()
+    {
+        var store = new RecordingGraphStore();
+        var materializer = new ProjectionGraphMaterializer<TestGraphReadModel>(store);
+
+        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        {
+            Id = "owner-1",
+            GraphScope = "scope-1",
+            GraphNodes =
+            [
+                Node("root"),
+                Node("left"),
+                Node("orphan-a"),
+                Node("orphan-b"),
+            ],
+            GraphEdges =
+            [
+                Edge("edge-root", "root", "left"),
+                Edge("edge-orphan", "orphan-a", "orphan-b"),
+            ],
+        });
+
+        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        {
+            Id = "owner-1",
+            GraphScope = "scope-1",
+            GraphNodes =
+            [
+                Node("root"),
+                Node("left"),
+            ],
+            GraphEdges =
+            [
+                Edge("edge-root", "root", "left"),
+            ],
+        });
+
+        var ownerNodes = await store.ListNodesByOwnerAsync("scope-1", BuildOwnerId("owner-1"), take: 20);
+
+        ownerNodes.Select(x => x.NodeId).Should().BeEquivalentTo("root", "left");
+        store.ContainsNode("scope-1", "orphan-a").Should().BeFalse();
+        store.ContainsNode("scope-1", "orphan-b").Should().BeFalse();
+    }
+
+    [Fact]
+    public async Task UpsertGraphAsync_ShouldKeepStaleNodeWhenStillReferencedByAnotherOwner()
+    {
+        var store = new RecordingGraphStore();
+        var materializer = new ProjectionGraphMaterializer<TestGraphReadModel>(store);
+
+        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        {
+            Id = "owner-1",
+            GraphScope = "scope-1",
+            GraphNodes =
+            [
+                Node("shared"),
+                Node("owner-1-node"),
+            ],
+            GraphEdges =
+            [
+                Edge("edge-owner-1", "shared", "owner-1-node"),
+            ],
+        });
+
+        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        {
+            Id = "owner-2",
+            GraphScope = "scope-1",
+            GraphNodes =
+            [
+                Node("owner-2-node"),
+            ],
+            GraphEdges =
+            [
+                Edge("edge-owner-2", "shared", "owner-2-node"),
+            ],
+        });
+
+        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        {
+            Id = "owner-1",
+            GraphScope = "scope-1",
+            GraphNodes = [],
+            GraphEdges = [],
+        });
+
+        var sharedNeighbors = await store.GetNeighborsAsync(new ProjectionGraphQuery
+        {
+            Scope = "scope-1",
+            RootNodeId = "shared",
+            Direction = ProjectionGraphDirection.Both,
+            EdgeTypes = [],
+            Take = 20,
+        });
+
+        sharedNeighbors.Select(x => x.EdgeId).Should().ContainSingle("edge-owner-2");
+        store.ContainsNode("scope-1", "shared").Should().BeTrue();
+        store.ContainsNode("scope-1", "owner-1-node").Should().BeFalse();
+    }
+
+    private static string BuildOwnerId(string id) => $"{typeof(TestGraphReadModel).FullName}:{id}";
+
     private static GraphNodeDescriptor Node(string nodeId)
     {
         return new GraphNodeDescriptor(
@@ -187,6 +292,14 @@ public Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = def
             return Task.CompletedTask;
         }
 
+        public Task DeleteNodeAsync(string scope, string nodeId, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            lock (_gate)
+                _nodes.Remove(BuildScopedKey(scope, nodeId));
+            return Task.CompletedTask;
+        }
+
         public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
         {
             ct.ThrowIfCancellationRequested();
@@ -224,6 +337,35 @@ public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
             return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>(edges);
         }
 
+        public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
+            string scope,
+            string ownerId,
+            int take = 5000,
+            CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            var scopeValue = NormalizeToken(scope);
+            var ownerValue = NormalizeToken(ownerId);
+            if (scopeValue.Length == 0 || ownerValue.Length == 0)
+                return Task.FromResult<IReadOnlyList<ProjectionGraphNode>>([]);
+
+            List<ProjectionGraphNode> nodes;
+            lock (_gate)
+            {
+                nodes = _nodes.Values
+                    .Where(x => string.Equals(x.Scope, scopeValue, StringComparison.Ordinal))
+                    .Where(x =>
+                        x.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey, out var nodeOwnerId) &&
+                        string.Equals(NormalizeToken(nodeOwnerId), ownerValue, StringComparison.Ordinal))
+                    .OrderByDescending(x => x.UpdatedAt)
+                    .Take(Math.Clamp(take, 1, 50000))
+                    .Select(CloneNode)
+                    .ToList();
+            }
+
+            return Task.FromResult<IReadOnlyList<ProjectionGraphNode>>(nodes);
+        }
+
         public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
             ProjectionGraphQuery query,
             CancellationToken ct = default)
@@ -294,6 +436,12 @@ public async Task<ProjectionGraphSubgraph> GetSubgraphAsync(
             };
         }
 
+        public bool ContainsNode(string scope, string nodeId)
+        {
+            lock (_gate)
+                return _nodes.ContainsKey(BuildScopedKey(scope, nodeId));
+        }
+
         private static bool MatchDirection(ProjectionGraphEdge edge, string rootNodeId, ProjectionGraphDirection direction)
         {
             return direction switch
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
index 3e220bbd4..0d2fff30a 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
@@ -7,21 +7,19 @@ namespace Aevatar.CQRS.Projection.Core.Tests;
 public class ProjectionReadModelRuntimeTests
 {
     [Fact]
-    public async Task ProjectionDocumentStoreFanout_ShouldFanoutWritesAndUsePrimaryQueryStore()
+    public async Task ProjectionDocumentStoreFanout_ShouldFanoutWritesAndUseFirstRegisteredQueryStore()
     {
-        var primaryStore = new NamedDocumentStore("primary");
+        var queryStore = new NamedDocumentStore("query");
         var replicaStore = new NamedDocumentStore("replica");
         var services = new ServiceCollection();
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "replica",
-                false,
-                _ => replicaStore));
+                "query",
+                _ => queryStore));
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "primary",
-                true,
-                _ => primaryStore));
+                "replica",
+                _ => replicaStore));
 
         using var serviceProvider = services.BuildServiceProvider();
         var fanout = new ProjectionDocumentStoreFanout<TestReadModel, string>(
@@ -36,7 +34,7 @@ public async Task ProjectionDocumentStoreFanout_ShouldFanoutWritesAndUsePrimaryQ
 
         await fanout.UpsertAsync(model);
 
-        primaryStore.UpsertCount.Should().Be(1);
+        queryStore.UpsertCount.Should().Be(1);
         replicaStore.UpsertCount.Should().Be(1);
 
         var fetched = await fanout.GetAsync("id-1");
@@ -45,24 +43,22 @@ public async Task ProjectionDocumentStoreFanout_ShouldFanoutWritesAndUsePrimaryQ
     }
 
     [Fact]
-    public async Task ProjectionDocumentStoreFanout_ShouldReadFromExplicitPrimary_WhenOrderDiffers()
+    public async Task ProjectionDocumentStoreFanout_ShouldReadFromFirstRegistration_WhenOrderDiffers()
     {
-        var primaryStore = new NamedDocumentStore("primary");
-        var replicaStore = new NamedDocumentStore("replica");
-        primaryStore.Seed("id-1", "from-primary");
-        replicaStore.Seed("id-1", "from-replica");
+        var firstStore = new NamedDocumentStore("first");
+        var secondStore = new NamedDocumentStore("second");
+        firstStore.Seed("id-1", "from-first");
+        secondStore.Seed("id-1", "from-second");
 
         var services = new ServiceCollection();
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "replica",
-                false,
-                _ => replicaStore));
+                "first",
+                _ => firstStore));
         services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
             new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "primary",
-                true,
-                _ => primaryStore));
+                "second",
+                _ => secondStore));
 
         using var serviceProvider = services.BuildServiceProvider();
         var fanout = new ProjectionDocumentStoreFanout<TestReadModel, string>(
@@ -72,55 +68,7 @@ public async Task ProjectionDocumentStoreFanout_ShouldReadFromExplicitPrimary_Wh
         var fetched = await fanout.GetAsync("id-1");
 
         fetched.Should().NotBeNull();
-        fetched!.Value.Should().Be("from-primary");
-    }
-
-    [Fact]
-    public void ProjectionDocumentStoreFanout_WhenMultipleRegistrationsAndNoPrimary_ShouldThrow()
-    {
-        var services = new ServiceCollection();
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "replica-1",
-                false,
-                _ => new NamedDocumentStore("replica-1")));
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "replica-2",
-                false,
-                _ => new NamedDocumentStore("replica-2")));
-
-        using var serviceProvider = services.BuildServiceProvider();
-        Action act = () => new ProjectionDocumentStoreFanout<TestReadModel, string>(
-            serviceProvider.GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(),
-            serviceProvider);
-
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*Exactly one primary document projection store provider must be configured*");
-    }
-
-    [Fact]
-    public void ProjectionDocumentStoreFanout_WhenMultiplePrimaryRegistrations_ShouldThrow()
-    {
-        var services = new ServiceCollection();
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "primary-1",
-                true,
-                _ => new NamedDocumentStore("primary-1")));
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "primary-2",
-                true,
-                _ => new NamedDocumentStore("primary-2")));
-
-        using var serviceProvider = services.BuildServiceProvider();
-        Action act = () => new ProjectionDocumentStoreFanout<TestReadModel, string>(
-            serviceProvider.GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(),
-            serviceProvider);
-
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*Multiple primary document projection store providers are configured*");
+        fetched!.Value.Should().Be("from-first");
     }
 
     [Fact]
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
index 513316576..ddead8353 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
@@ -7,21 +7,19 @@ namespace Aevatar.CQRS.Projection.Core.Tests;
 public class ProjectionReadModelStoreSelectorTests
 {
     [Fact]
-    public async Task ProjectionGraphStoreFanout_ShouldFanoutWritesAndUsePrimaryQueryStore()
+    public async Task ProjectionGraphStoreFanout_ShouldFanoutWritesAndUseFirstRegisteredQueryStore()
     {
-        var primaryStore = new NamedGraphStore("primary");
-        var replicaStore = new NamedGraphStore("replica");
+        var firstStore = new NamedGraphStore("first");
+        var secondStore = new NamedGraphStore("second");
         var services = new ServiceCollection();
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "replica",
-                false,
-                _ => replicaStore));
+                "first",
+                _ => firstStore));
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "primary",
-                true,
-                _ => primaryStore));
+                "second",
+                _ => secondStore));
 
         using var serviceProvider = services.BuildServiceProvider();
         var fanout = new ProjectionGraphStoreFanout(
@@ -47,58 +45,44 @@ await fanout.UpsertNodeAsync(new ProjectionGraphNode
             Take = 10,
         });
 
-        primaryStore.UpsertNodeCount.Should().Be(1);
-        replicaStore.UpsertNodeCount.Should().Be(1);
+        firstStore.UpsertNodeCount.Should().Be(1);
+        secondStore.UpsertNodeCount.Should().Be(1);
         edges.Should().HaveCount(1);
-        edges[0].EdgeType.Should().Be("primary");
+        edges[0].EdgeType.Should().Be("first");
     }
 
     [Fact]
-    public void ProjectionGraphStoreFanout_WhenMultipleRegistrationsAndNoPrimary_ShouldThrow()
+    public async Task ProjectionGraphStoreFanout_ShouldReadFromFirstRegistration_WhenOrderDiffers()
     {
+        var firstStore = new NamedGraphStore("from-first");
+        var secondStore = new NamedGraphStore("from-second");
         var services = new ServiceCollection();
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "replica-1",
-                false,
-                _ => new NamedGraphStore("replica-1")));
+                "first",
+                _ => firstStore));
         services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
             new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "replica-2",
-                false,
-                _ => new NamedGraphStore("replica-2")));
+                "second",
+                _ => secondStore));
 
         using var serviceProvider = services.BuildServiceProvider();
-        Action act = () => new ProjectionGraphStoreFanout(
+        var fanout = new ProjectionGraphStoreFanout(
             serviceProvider.GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>(),
             serviceProvider);
 
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*Exactly one primary graph projection store provider must be configured*");
-    }
-
-    [Fact]
-    public void ProjectionGraphStoreFanout_WhenMultiplePrimaryRegistrations_ShouldThrow()
-    {
-        var services = new ServiceCollection();
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "primary-1",
-                true,
-                _ => new NamedGraphStore("primary-1")));
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "primary-2",
-                true,
-                _ => new NamedGraphStore("primary-2")));
-
-        using var serviceProvider = services.BuildServiceProvider();
-        Action act = () => new ProjectionGraphStoreFanout(
-            serviceProvider.GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>(),
-            serviceProvider);
+        var edges = await fanout.GetNeighborsAsync(new ProjectionGraphQuery
+        {
+            Scope = "projection-scope",
+            RootNodeId = "node-1",
+            Direction = ProjectionGraphDirection.Both,
+            EdgeTypes = [],
+            Depth = 1,
+            Take = 10,
+        });
 
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*Multiple primary graph projection store providers are configured*");
+        edges.Should().ContainSingle();
+        edges[0].EdgeType.Should().Be("from-first");
     }
 
     [Fact]
@@ -137,6 +121,13 @@ public Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = def
             return Task.CompletedTask;
         }
 
+        public Task DeleteNodeAsync(string scope, string nodeId, CancellationToken ct = default)
+        {
+            _ = scope;
+            _ = nodeId;
+            return Task.CompletedTask;
+        }
+
         public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
         {
             _ = scope;
@@ -144,6 +135,18 @@ public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct =
             return Task.CompletedTask;
         }
 
+        public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
+            string scope,
+            string ownerId,
+            int take = 5000,
+            CancellationToken ct = default)
+        {
+            _ = scope;
+            _ = ownerId;
+            _ = take;
+            return Task.FromResult<IReadOnlyList<ProjectionGraphNode>>([]);
+        }
+
         public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
             string scope,
             string ownerId,
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 4446aab50..6a65e8faa 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -67,11 +67,10 @@ private static void RegisterInMemoryProviders(IServiceCollection services)
     {
         services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
             keySelector: report => report.RootActorId,
-            isPrimaryQueryStore: true,
             keyFormatter: key => key,
             listSortSelector: report => report.CreatedAt,
             listTakeMax: 200);
-        services.AddInMemoryGraphStoreRegistration(isPrimaryQueryStore: true);
+        services.AddInMemoryGraphStoreRegistration();
     }
 
     private static void RegisterElasticsearchDocumentProvider(IServiceCollection services)
@@ -87,7 +86,6 @@ private static void RegisterElasticsearchDocumentProvider(IServiceCollection ser
                 return metadataResolver.Resolve<WorkflowExecutionReport>();
             },
             keySelector: report => report.RootActorId,
-            isPrimaryQueryStore: true,
             keyFormatter: key => key);
     }
 
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index f74931429..9236118d0 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -126,7 +126,7 @@ public void AddWorkflowProjectionReadModelProviders_WhenDurableProvidersEnabled_
     }
 
     [Fact]
-    public void AddWorkflowProjectionReadModelProviders_WhenAllProvidersEnabled_ShouldSelectDurablePrimary()
+    public void AddWorkflowProjectionReadModelProviders_WhenAllProvidersEnabled_ShouldRegisterDurableProvidersFirst()
     {
         var services = new ServiceCollection();
         var configuration = new ConfigurationBuilder()
@@ -152,20 +152,12 @@ public void AddWorkflowProjectionReadModelProviders_WhenAllProvidersEnabled_Shou
             .ToList();
 
         documentRegistrations.Should().HaveCount(2);
-        documentRegistrations.Should().ContainSingle(x =>
-            string.Equals(x.ProviderName, "Elasticsearch", StringComparison.Ordinal) &&
-            x.IsPrimaryQueryStore);
-        documentRegistrations.Should().ContainSingle(x =>
-            string.Equals(x.ProviderName, "InMemory", StringComparison.Ordinal) &&
-            !x.IsPrimaryQueryStore);
+        documentRegistrations[0].ProviderName.Should().Be("Elasticsearch");
+        documentRegistrations[1].ProviderName.Should().Be("InMemory");
 
         graphRegistrations.Should().HaveCount(2);
-        graphRegistrations.Should().ContainSingle(x =>
-            string.Equals(x.ProviderName, "Neo4j", StringComparison.Ordinal) &&
-            x.IsPrimaryQueryStore);
-        graphRegistrations.Should().ContainSingle(x =>
-            string.Equals(x.ProviderName, "InMemory", StringComparison.Ordinal) &&
-            !x.IsPrimaryQueryStore);
+        graphRegistrations[0].ProviderName.Should().Be("Neo4j");
+        graphRegistrations[1].ProviderName.Should().Be("InMemory");
     }
 
     [Fact]

From 2e473fb7ac61000cbbdff6186d3f620600bdfe2a Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 04:03:11 +0800
Subject: [PATCH 36/46] Refactor Projection ReadModel and Enhance Metadata
 Handling

- Updated the Projection ReadModel architecture to utilize structured metadata objects for Elasticsearch, improving clarity and usability in index initialization.
- Enhanced the `DocumentIndexMetadata` to support structured mappings, settings, and aliases, replacing the previous JSON string representation.
- Refactored the `ElasticsearchProjectionReadModelStore` to consume the new structured metadata format, ensuring accurate index creation and configuration.
- Optimized the Neo4j subgraph query logic to reduce N+1 query risks by consolidating edge retrieval into a single Cypher query, improving performance in high-degree scenarios.
- Revised documentation to reflect these architectural changes and clarify the new metadata handling processes.
---
 ...readmodel-full-refactor-plan-2026-02-24.md |  14 +-
 ...on-store-readmodel-scorecard-2026-02-24.md |  24 ++-
 .../README.md                                 |   2 +-
 .../ElasticsearchProjectionReadModelStore.cs  | 147 ++++++++++++++----
 .../Stores/Neo4jProjectionGraphStore.cs       | 103 ++++++------
 .../Runtime/ProjectionGraphMaterializer.cs    |  31 +---
 .../ReadModels/DocumentIndexMetadata.cs       |   6 +-
 .../README.md                                 |   2 +-
 ...ExecutionReportDocumentMetadataProvider.cs |   9 +-
 .../WorkflowProjectionReadModelUpdater.cs     |   6 +
 .../WorkflowExecutionReadModelProjector.cs    |   6 +
 ...chProjectionReadModelStoreBehaviorTests.cs |  73 ++++++++-
 .../ProjectionGraphMaterializerTests.cs       |  21 +++
 .../ProjectionProviderE2EIntegrationTests.cs  |   6 +-
 14 files changed, 307 insertions(+), 143 deletions(-)

diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
index 00478bbbc..932a1736a 100644
--- a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
+++ b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
@@ -118,17 +118,23 @@ Rules:
   - 写节点时同样注入系统属性：`projectionManaged=true`、`projectionOwnerId=<ReadModelType>:<ReadModelId>`
   - 清理时按 owner 列举已有边/节点并做差集删除，不再依赖 `Depth/Take` 子图扫描窗口。
   - 节点删除前执行邻接检查，仅删除无任何关系边的孤立节点，避免误删跨 owner 共享节点。
+  - graph owner 标识收敛为 `IGraphReadModel.Id`；`Id` 为空直接 fail-fast，禁止 fallback 到节点/边推断。
 
 ## 3.7 Elasticsearch Metadata Behavior
 
 `ElasticsearchProjectionReadModelStore` now consumes full `DocumentIndexMetadata`:
 
 - `IndexName` as logical scope input
-- `MappingJson` as index mappings object
-- `Settings` as index settings object
-- `Aliases` as index alias object
+- `Mappings` as structured mappings object (`IReadOnlyDictionary<string, object?>`)
+- `Settings` as structured settings object (`IReadOnlyDictionary<string, object?>`)
+- `Aliases` as structured aliases object (`IReadOnlyDictionary<string, object?>`)
 
-Index bootstrap now uses metadata payload instead of fixed `{"mappings":{"dynamic":true}}`.
+Index bootstrap now uses structured metadata payload instead of stringified JSON fragments.
+
+## 3.8 Neo4j Subgraph Query Optimization
+
+- `Neo4jProjectionGraphStore.GetSubgraphAsync` 从“逐层逐节点 `GetNeighborsAsync` 循环”重构为单次 Cypher 拉取边（按 `direction/depth/edgeTypes/take`），随后一次节点补全查询。
+- 移除子图遍历的 N+1 风险，降低高出度场景下查询放大。
 
 ## 4. Project-Level Responsibility Split (Post-Refactor)
 
diff --git a/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
index 5249ed2b6..04bb3e296 100644
--- a/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
+++ b/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
@@ -27,9 +27,9 @@
 
 ## 3. 总分结论
 
-- **总分：89 / 100**
+- **总分：92 / 100**
 - **等级：B+（严格口径，高于上版 84）**
-- **结论：核心架构问题（查询源规则不清、图清理窗口清理）已实质修复；当前主要短板转为一致性语义、owner 标识稳定性与可观测性。**
+- **结论：核心架构问题（查询源规则不清、图清理窗口清理、Neo4j 子图查询放大）已实质修复；当前主要短板转为跨 Store 一致性与可观测性。**
 
 ## 4. 维度评分（严格）
 
@@ -37,12 +37,12 @@
 |---|---:|---:|---|
 | 架构边界与抽象收敛 | 15 | 15 | `IProjectionStoreRegistration` 收敛为最小契约（`ProviderName + Create`），Runtime 组装边界清晰（`IProjectionStoreRegistration.cs`，`DelegateProjectionStoreRegistration.cs`）。 |
 | Provider 模型清晰度 | 15 | 15 | Document/Graph fan-out 使用统一规则“注册顺序即查询顺序”（首注册 provider 读，全部 provider 写 fan-out）（`ProjectionDocumentStoreFanout.cs`，`ProjectionGraphStoreFanout.cs`）；Workflow Host 落地耐久优先注册顺序（`WorkflowProjectionProviderServiceCollectionExtensions.cs`）。 |
-| Document 索引语义完整性 | 20 | 17 | ES 初始化已消费 `DocumentIndexMetadata` 的 mappings/settings/aliases（`ElasticsearchProjectionReadModelStore.cs:486-503`，`515-532`）。扣分：`DocumentIndexMetadata.Settings/Aliases` 仍是 `Dictionary<string,string>`（`DocumentIndexMetadata.cs:3-7`），复杂结构需字符串 JSON；Workflow 默认 metadata 仍是空 mapping（`WorkflowExecutionReportDocumentMetadataProvider.cs:8-12`）。 |
-| Graph 关系语义与正确性 | 15 | 14 | Graph materializer 已改为 owner-based 差集清理（`ProjectionGraphMaterializer.cs`），并写入系统属性 `projectionManaged/projectionOwnerId`（`ProjectionGraphMaterializer.cs`）；Graph store 抽象新增 `ListEdgesByOwnerAsync/ListNodesByOwnerAsync/DeleteNodeAsync`（`IProjectionGraphStore.cs`），InMemory/Neo4j 均实现（`InMemoryProjectionGraphStore.cs`，`Neo4jProjectionGraphStore.cs`）。扣分：当 readModel 无稳定 id 且无可用节点/边标识时仍会跳过 cleanup（`ProjectionGraphMaterializer.cs` 的 owner fallback 分支）。 |
+| Document 索引语义完整性 | 20 | 19 | `DocumentIndexMetadata` 已升级为结构化对象（`Mappings/Settings/Aliases`），ES 初始化直接消费结构化元数据（`DocumentIndexMetadata.cs`，`ElasticsearchProjectionReadModelStore.cs`）；复杂 metadata 组合行为已有单测覆盖（`ElasticsearchProjectionReadModelStoreBehaviorTests.cs`）。扣分：仍缺少真实 ES 集群下复杂 settings/aliases 的端到端回归。 |
+| Graph 关系语义与正确性 | 15 | 15 | Graph materializer 已完成 owner-based 边/节点差集清理，节点删除前有邻接检查防误删共享节点（`ProjectionGraphMaterializer.cs`）；owner 标识收敛为 `IGraphReadModel.Id`，`Id` 为空 fail-fast，消除 fallback 残留语义（`ProjectionGraphMaterializer.cs`、`ProjectionGraphMaterializerTests.cs`）。 |
 | 一致性与失败语义 | 10 | 7 | Router 仍是顺序写入（先 Document，再 Graph）（`ProjectionMaterializationRouter.cs:31-37`），跨 provider 非事务；`Mutate` 后读回再刷新 graph（`ProjectionMaterializationRouter.cs:49-63`），失败时可能留部分成功状态。 |
-| Provider 实现质量与性能 | 10 | 8 | ES `MutateAsync` OCC 重试与冲突处理较完整（`ElasticsearchProjectionReadModelStore.cs:93-143`）。扣分：Neo4j 子图遍历仍为逐层逐节点 `GetNeighborsAsync`（`Neo4jProjectionGraphStore.cs:241-260`），在高出度场景有查询放大风险。 |
+| Provider 实现质量与性能 | 10 | 9 | ES `MutateAsync` OCC 重试与冲突处理较完整（`ElasticsearchProjectionReadModelStore.cs`）；Neo4j `GetSubgraphAsync` 已从逐节点循环改为单次 Cypher 拉边 + 一次节点补全（`Neo4jProjectionGraphStore.cs`），显著降低查询放大。扣分：仍缺少高规模数据集下的性能基准回归。 |
 | 可观测性 | 5 | 3 | Fan-out 初始化日志已有 provider 信息（`ProjectionDocumentStoreFanout.cs:76-80`，`ProjectionGraphStoreFanout.cs:62-65`）；ES 冲突日志较完整（`ElasticsearchProjectionReadModelStore.cs:124-133`）。扣分：Graph provider 成功路径指标/日志仍偏薄，Neo4j 侧主要是反序列化 warning（`Neo4jProjectionGraphStore.cs:546-551`）。 |
-| 测试与治理门禁 | 10 | 9 | fan-out 查询顺序与写扩散语义测试已补齐（`ProjectionReadModelRuntimeTests.cs`，`ProjectionReadModelStoreSelectorTests.cs`）；owner 维度边/节点清理回归已补（`ProjectionGraphMaterializerTests.cs`）；Workflow host 对 durable-first 注册顺序有覆盖（`WorkflowHostingExtensionsCoverageTests.cs`）；门禁脚本通过。扣分：仍缺少 `DocumentIndexMetadata` 复杂 settings/aliases 组合的端到端初始化测试。 |
+| 测试与治理门禁 | 10 | 9 | fan-out 查询顺序与写扩散语义测试已补齐（`ProjectionReadModelRuntimeTests.cs`，`ProjectionReadModelStoreSelectorTests.cs`）；owner 维度边/节点清理与空 Id fail-fast 回归已补（`ProjectionGraphMaterializerTests.cs`）；structured metadata 初始化测试已补（`ElasticsearchProjectionReadModelStoreBehaviorTests.cs`）；门禁脚本通过。扣分：仍缺少真实 Neo4j/ES 双 provider 联动压力测试。 |
 
 ## 5. 关键扣分项（按优先级）
 
@@ -53,14 +53,8 @@
 
 ### P2
 
-1. **Neo4j 子图遍历存在查询放大**
-   - `GetSubgraphAsync` 逐节点调用 `GetNeighborsAsync`（`Neo4jProjectionGraphStore.cs:241-260`）。
-
-2. **Document 索引元数据表达力仍有限**
-   - `Settings/Aliases` 使用字符串字典，复杂结构可读性与校验能力有限（`DocumentIndexMetadata.cs:3-7`）。
-
-3. **Graph owner fallback 仍有残留风险**
-   - 当 readModel 缺少稳定标识且节点/边都为空时，owner 解析会降级并跳过 cleanup，可能保留历史 managed 数据（`ProjectionGraphMaterializer.cs`）。
+1. **跨 Provider 高规模性能基线不足**
+   - 缺少 Neo4j/ES 双 provider 联动的压力测试与容量基线，尚未形成性能门禁。
 
 ### P3
 
@@ -69,4 +63,4 @@
 
 ## 6. 重新评分判定
 
-当前实现已进入“结构清晰 + 关键缺陷已修复”的阶段，但在严格生产工程标准下仍未到 A 档。重新评分为 **89/100（B+）**。
+当前实现已进入“结构清晰 + 关键缺陷大幅收敛”的阶段，但在严格生产工程标准下仍未到 A 档。重新评分为 **92/100（B+）**。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
index 9c9591361..4b253f469 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
@@ -7,7 +7,7 @@
 - `MutateAsync` 基于 `seq_no/primary_term` 执行 OCC（冲突可重试，超限失败）。
 - `AutoCreateIndex=false` 时可通过 `MissingIndexBehavior` 控制索引缺失行为（默认抛错）。
 - `ListSortField` 为空时默认按 `CreatedAt desc -> _id desc` 排序。
-- 索引初始化支持 `DocumentIndexMetadata`：`MappingJson`、`Settings`、`Aliases`。
+- 索引初始化支持 `DocumentIndexMetadata`：`Mappings`、`Settings`、`Aliases`（结构化对象）。
 
 ## DI 注册
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
index b97052df4..04ac0c4b5 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
@@ -485,9 +485,12 @@ private async Task EnsureIndexAsync(CancellationToken ct)
 
     private string BuildIndexInitializationPayload()
     {
-        object mappings = new { dynamic = true };
-        if (!string.IsNullOrWhiteSpace(_indexMetadata.MappingJson))
-            mappings = ParseJsonObject(_indexMetadata.MappingJson, "DocumentIndexMetadata.MappingJson");
+        var mappings = _indexMetadata.Mappings.Count == 0
+            ? new Dictionary<string, object?>(StringComparer.Ordinal)
+            {
+                ["dynamic"] = true,
+            }
+            : new Dictionary<string, object?>(_indexMetadata.Mappings, StringComparer.Ordinal);
 
         var root = new Dictionary<string, object?>
         {
@@ -495,9 +498,9 @@ private string BuildIndexInitializationPayload()
         };
 
         if (_indexMetadata.Settings.Count > 0)
-            root["settings"] = _indexMetadata.Settings;
+            root["settings"] = new Dictionary<string, object?>(_indexMetadata.Settings, StringComparer.Ordinal);
         if (_indexMetadata.Aliases.Count > 0)
-            root["aliases"] = BuildAliasPayload(_indexMetadata.Aliases);
+            root["aliases"] = new Dictionary<string, object?>(_indexMetadata.Aliases, StringComparer.Ordinal);
 
         return JsonSerializer.Serialize(root, _jsonOptions);
     }
@@ -505,50 +508,130 @@ private string BuildIndexInitializationPayload()
     private static DocumentIndexMetadata NormalizeMetadata(DocumentIndexMetadata metadata)
     {
         ArgumentNullException.ThrowIfNull(metadata);
+        var normalizedMappings = NormalizeObjectMap(metadata.Mappings, "DocumentIndexMetadata.Mappings");
+        var normalizedSettings = NormalizeObjectMap(metadata.Settings, "DocumentIndexMetadata.Settings");
+        var normalizedAliases = NormalizeObjectMap(metadata.Aliases, "DocumentIndexMetadata.Aliases");
         return new DocumentIndexMetadata(
             metadata.IndexName?.Trim() ?? "",
-            metadata.MappingJson?.Trim() ?? "{}",
-            new Dictionary<string, string>(metadata.Settings, StringComparer.Ordinal),
-            new Dictionary<string, string>(metadata.Aliases, StringComparer.Ordinal));
+            normalizedMappings,
+            normalizedSettings,
+            normalizedAliases);
     }
 
-    private static IReadOnlyDictionary<string, object> BuildAliasPayload(
-        IReadOnlyDictionary<string, string> aliases)
+    private static Dictionary<string, object?> NormalizeObjectMap(
+        IReadOnlyDictionary<string, object?> source,
+        string context)
     {
-        var payload = new Dictionary<string, object>(StringComparer.Ordinal);
-        foreach (var alias in aliases)
+        ArgumentNullException.ThrowIfNull(source);
+        var normalized = new Dictionary<string, object?>(StringComparer.Ordinal);
+        foreach (var pair in source)
         {
-            var aliasName = alias.Key?.Trim() ?? "";
-            if (aliasName.Length == 0)
-                continue;
+            var key = pair.Key?.Trim() ?? "";
+            if (key.Length == 0)
+                throw new InvalidOperationException($"{context} contains an empty key.");
 
-            var aliasConfig = alias.Value?.Trim() ?? "";
-            payload[aliasName] = aliasConfig.Length == 0
-                ? new Dictionary<string, object>(StringComparer.Ordinal)
-                : ParseJsonObject(aliasConfig, $"DocumentIndexMetadata.Aliases['{aliasName}']");
+            normalized[key] = NormalizeObjectValue(pair.Value, $"{context}['{key}']");
         }
 
-        return payload;
+        return normalized;
     }
 
-    private static object ParseJsonObject(string payload, string context)
+    private static object? NormalizeObjectValue(object? value, string context)
     {
-        try
+        if (value == null)
+            return null;
+
+        if (value is string ||
+            value is bool ||
+            value is byte ||
+            value is sbyte ||
+            value is short ||
+            value is ushort ||
+            value is int ||
+            value is uint ||
+            value is long ||
+            value is ulong ||
+            value is float ||
+            value is double ||
+            value is decimal)
         {
-            using var json = JsonDocument.Parse(payload);
-            if (json.RootElement.ValueKind != JsonValueKind.Object)
-            {
-                throw new InvalidOperationException(
-                    $"{context} must be a JSON object. actualKind={json.RootElement.ValueKind}");
-            }
+            return value;
+        }
+
+        if (value is JsonElement jsonElement)
+            return NormalizeJsonElement(jsonElement, context);
 
-            return JsonSerializer.Deserialize<Dictionary<string, object?>>(
-                json.RootElement.GetRawText()) ?? new Dictionary<string, object?>(StringComparer.Ordinal);
+        if (value is IReadOnlyDictionary<string, object?> readonlyObjectMap)
+            return NormalizeObjectMap(readonlyObjectMap, context);
+
+        if (value is IDictionary<string, object?> mutableObjectMap)
+            return NormalizeObjectMap(
+                new Dictionary<string, object?>(mutableObjectMap, StringComparer.Ordinal),
+                context);
+
+        if (value is IReadOnlyDictionary<string, string> readonlyStringMap)
+        {
+            var converted = readonlyStringMap.ToDictionary(
+                x => x.Key,
+                x => (object?)x.Value,
+                StringComparer.Ordinal);
+            return NormalizeObjectMap(converted, context);
         }
-        catch (Exception ex) when (ex is JsonException or NotSupportedException)
+
+        if (value is IDictionary<string, string> mutableStringMap)
         {
-            throw new InvalidOperationException($"{context} is invalid JSON object: {ex.Message}", ex);
+            var converted = mutableStringMap.ToDictionary(
+                x => x.Key,
+                x => (object?)x.Value,
+                StringComparer.Ordinal);
+            return NormalizeObjectMap(converted, context);
         }
+
+        if (value is IEnumerable<object?> objectSequence)
+            return objectSequence.Select((x, i) => NormalizeObjectValue(x, $"{context}[{i}]")).ToList();
+
+        if (value is IEnumerable<string> stringSequence)
+            return stringSequence.Cast<object?>().ToList();
+
+        throw new InvalidOperationException(
+            $"{context} contains unsupported value type '{value.GetType().FullName}'.");
+    }
+
+    private static object? NormalizeJsonElement(JsonElement element, string context)
+    {
+        return element.ValueKind switch
+        {
+            JsonValueKind.Object => element
+                .EnumerateObject()
+                .ToDictionary(
+                    x => x.Name,
+                    x => NormalizeJsonElement(x.Value, $"{context}['{x.Name}']"),
+                    StringComparer.Ordinal),
+            JsonValueKind.Array => element
+                .EnumerateArray()
+                .Select((x, i) => NormalizeJsonElement(x, $"{context}[{i}]"))
+                .ToList(),
+            JsonValueKind.String => element.GetString(),
+            JsonValueKind.Number => NormalizeJsonNumber(element, context),
+            JsonValueKind.True => true,
+            JsonValueKind.False => false,
+            JsonValueKind.Null => null,
+            JsonValueKind.Undefined => null,
+            _ => throw new InvalidOperationException(
+                $"{context} contains unsupported json value kind '{element.ValueKind}'."),
+        };
+    }
+
+    private static object NormalizeJsonNumber(JsonElement numberElement, string context)
+    {
+        if (numberElement.TryGetInt64(out var int64Value))
+            return int64Value;
+        if (numberElement.TryGetDecimal(out var decimalValue))
+            return decimalValue;
+        if (numberElement.TryGetDouble(out var doubleValue))
+            return doubleValue;
+
+        throw new InvalidOperationException($"{context} contains an invalid JSON number value.");
     }
 
     private static async Task EnsureSuccessAsync(
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
index c297800f5..123f9bb95 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
@@ -325,54 +325,34 @@ public async Task<ProjectionGraphSubgraph> GetSubgraphAsync(
         if (scope.Length == 0 || rootNodeId.Length == 0)
             return new ProjectionGraphSubgraph();
 
+        await EnsureSchemaAsync(ct);
         var depth = Math.Clamp(query.Depth, 1, _maxTraversalDepth);
         var take = Math.Clamp(query.Take, 1, 5000);
-        var visitedNodeIds = new HashSet<string>(StringComparer.Ordinal) { rootNodeId };
-        var frontier = new HashSet<string>(StringComparer.Ordinal) { rootNodeId };
-        var collectedEdges = new Dictionary<string, ProjectionGraphEdge>(StringComparer.Ordinal);
-
-        for (var currentDepth = 0; currentDepth < depth; currentDepth++)
+        var edgeTypes = NormalizeEdgeTypes(query.EdgeTypes);
+        var cypher = BuildSubgraphEdgesCypher(query.Direction, depth);
+        var parameters = new Dictionary<string, object?>
         {
-            if (frontier.Count == 0 || collectedEdges.Count >= take)
-                break;
+            ["scope"] = scope,
+            ["rootNodeId"] = rootNodeId,
+            ["edgeTypes"] = edgeTypes,
+            ["take"] = take,
+        };
 
-            var nextFrontier = new HashSet<string>(StringComparer.Ordinal);
-            foreach (var nodeId in frontier)
-            {
-                ct.ThrowIfCancellationRequested();
-                var neighbors = await GetNeighborsAsync(
-                    new ProjectionGraphQuery
-                    {
-                        Scope = scope,
-                        RootNodeId = nodeId,
-                        Direction = query.Direction,
-                        EdgeTypes = query.EdgeTypes,
-                        Depth = 1,
-                        Take = take - collectedEdges.Count,
-                    },
-                    ct);
-
-                foreach (var edge in neighbors)
-                {
-                    if (collectedEdges.Count >= take)
-                        break;
-
-                    if (!collectedEdges.ContainsKey(edge.EdgeId))
-                        collectedEdges[edge.EdgeId] = edge;
-
-                    var counterpartNodeId = ResolveCounterpartNodeId(edge, nodeId);
-                    if (counterpartNodeId.Length == 0)
-                        continue;
-
-                    if (visitedNodeIds.Add(counterpartNodeId))
-                        nextFrontier.Add(counterpartNodeId);
-                }
-            }
-
-            frontier = nextFrontier;
+        var rows = await ExecuteReadAsync(cypher, parameters, ct);
+        var edges = new List<ProjectionGraphEdge>(rows.Count);
+        foreach (var row in rows)
+        {
+            var edge = BuildEdgeFromRow(scope, row);
+            if (edge != null)
+                edges.Add(edge);
         }
 
-        var nodes = await GetNodesByIdsAsync(scope, visitedNodeIds, ct);
+        var nodeIds = edges
+            .SelectMany(x => new[] { x.FromNodeId, x.ToNodeId })
+            .Append(rootNodeId)
+            .Where(x => NormalizeToken(x).Length > 0)
+            .ToHashSet(StringComparer.Ordinal);
+        var nodes = await GetNodesByIdsAsync(scope, nodeIds, ct);
         if (!nodes.Any(x => string.Equals(x.NodeId, rootNodeId, StringComparison.Ordinal)))
         {
             nodes.Add(new ProjectionGraphNode
@@ -388,7 +368,7 @@ public async Task<ProjectionGraphSubgraph> GetSubgraphAsync(
         return new ProjectionGraphSubgraph
         {
             Nodes = nodes,
-            Edges = collectedEdges.Values.ToList(),
+            Edges = edges,
         };
     }
 
@@ -521,6 +501,34 @@ private string BuildNeighborCypher(ProjectionGraphDirection direction, int take)
         };
     }
 
+    private string BuildSubgraphEdgesCypher(ProjectionGraphDirection direction, int depth)
+    {
+        var boundedDepth = Math.Clamp(depth, 1, _maxTraversalDepth);
+        var pathPattern = direction switch
+        {
+            ProjectionGraphDirection.Outbound =>
+                $"(root)-[:{_edgeType}*1..{boundedDepth}]->()",
+            ProjectionGraphDirection.Inbound =>
+                $"(root)<-[:{_edgeType}*1..{boundedDepth}]-()",
+            _ =>
+                $"(root)-[:{_edgeType}*1..{boundedDepth}]-()",
+        };
+        return $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}}) " +
+               $"OPTIONAL MATCH p={pathPattern} " +
+               "WHERE p IS NULL OR (" +
+               "all(n IN nodes(p) WHERE coalesce(n.scope, '') = $scope) " +
+               "AND (size($edgeTypes) = 0 OR all(rel IN relationships(p) WHERE rel.relationType IN $edgeTypes))) " +
+               "UNWIND CASE WHEN p IS NULL THEN [] ELSE relationships(p) END AS r " +
+               "WITH DISTINCT r " +
+               "RETURN r.edgeId AS edgeId, " +
+               "startNode(r).nodeId AS fromNodeId, " +
+               "endNode(r).nodeId AS toNodeId, " +
+               "coalesce(r.relationType, '') AS relationType, " +
+               "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
+               "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
+               "ORDER BY updatedAtEpochMs DESC LIMIT $take";
+    }
+
     private async Task EnsureSchemaAsync(CancellationToken ct)
     {
         if (!_autoCreateConstraints || _schemaInitialized)
@@ -578,15 +586,6 @@ private IAsyncSession CreateSession(AccessMode accessMode)
         });
     }
 
-    private static string ResolveCounterpartNodeId(ProjectionGraphEdge edge, string nodeId)
-    {
-        if (string.Equals(edge.FromNodeId, nodeId, StringComparison.Ordinal))
-            return edge.ToNodeId;
-        if (string.Equals(edge.ToNodeId, nodeId, StringComparison.Ordinal))
-            return edge.FromNodeId;
-        return "";
-    }
-
     private static string[] NormalizeEdgeTypes(IReadOnlyList<string> edgeTypes)
     {
         return edgeTypes
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
index 1dfcf006c..11d6f8d4e 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
@@ -25,8 +25,7 @@ public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct =
                 $"Graph scope is required for read model '{typeof(TReadModel).FullName}'.");
         }
 
-        var ownerResolution = BuildManagedOwnerId(graphReadModel);
-        var ownerId = ownerResolution.OwnerId;
+        var ownerId = BuildManagedOwnerId(graphReadModel);
 
         var normalizedNodes = NormalizeNodes(graphReadModel.GraphNodes, scope, ownerId);
         foreach (var node in normalizedNodes)
@@ -39,8 +38,6 @@ public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct =
         var targetEdgeIds = normalizedEdges
             .Select(x => x.EdgeId)
             .ToHashSet(StringComparer.Ordinal);
-        if (!ownerResolution.CanCleanup)
-            return;
 
         var targetNodeIds = normalizedNodes
             .Select(x => x.NodeId)
@@ -101,34 +98,19 @@ private async Task<bool> CanDeleteNodeAsync(
         return neighbors.Count == 0;
     }
 
-    private static ManagedOwnerResolution BuildManagedOwnerId(IGraphReadModel readModel)
+    private static string BuildManagedOwnerId(IGraphReadModel readModel)
     {
         var readModelId = NormalizeToken(readModel.Id);
-        var canCleanup = readModelId.Length > 0;
-        if (readModelId.Length == 0)
-        {
-            readModelId = readModel.GraphNodes
-                .Select(x => NormalizeToken(x.NodeId))
-                .FirstOrDefault(x => x.Length > 0) ?? "";
-            canCleanup = readModelId.Length > 0;
-        }
-
         if (readModelId.Length == 0)
         {
-            readModelId = readModel.GraphEdges
-                .Select(x => NormalizeToken(x.FromNodeId))
-                .FirstOrDefault(x => x.Length > 0) ?? "";
-            canCleanup = readModelId.Length > 0;
+            throw new InvalidOperationException(
+                $"Graph read model '{readModel.GetType().FullName}' requires a non-empty Id for owner lifecycle management.");
         }
 
-        if (readModelId.Length == 0)
-            readModelId = "unknown";
-
         var readModelType = NormalizeToken(readModel.GetType().FullName);
-        var ownerId = readModelType.Length == 0
+        return readModelType.Length == 0
             ? readModelId
             : $"{readModelType}:{readModelId}";
-        return new ManagedOwnerResolution(ownerId, canCleanup);
     }
 
     private static IReadOnlyList<ProjectionGraphNode> NormalizeNodes(
@@ -215,7 +197,4 @@ private static IReadOnlyList<ProjectionGraphEdge> NormalizeEdges(
 
     private static string NormalizeToken(string? token) => token?.Trim() ?? "";
 
-    private readonly record struct ManagedOwnerResolution(
-        string OwnerId,
-        bool CanCleanup);
 }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/DocumentIndexMetadata.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/DocumentIndexMetadata.cs
index 7abc355aa..a7976d98d 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/DocumentIndexMetadata.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/DocumentIndexMetadata.cs
@@ -2,6 +2,6 @@ namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public sealed record DocumentIndexMetadata(
     string IndexName,
-    string MappingJson,
-    IReadOnlyDictionary<string, string> Settings,
-    IReadOnlyDictionary<string, string> Aliases);
+    IReadOnlyDictionary<string, object?> Mappings,
+    IReadOnlyDictionary<string, object?> Settings,
+    IReadOnlyDictionary<string, object?> Aliases);
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
index c0e66fb06..b073c7532 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
@@ -12,7 +12,7 @@
 - 读模型存储：`IDocumentProjectionStore<,>`
 - 图存储：`IProjectionGraphStore`
 - ReadModel 能力模型：`IProjectionReadModel`、`IDocumentReadModel`（marker）、`IGraphReadModel`
-- 文档索引元数据声明：`DocumentIndexMetadata`、`IProjectionDocumentMetadataProvider<TReadModel>`
+- 文档索引元数据声明：`DocumentIndexMetadata`、`IProjectionDocumentMetadataProvider<TReadModel>`；`DocumentIndexMetadata` 使用结构化对象字段（`Mappings/Settings/Aliases`）表达索引元数据。
 - 图结构描述：`GraphNodeDescriptor`、`GraphEdgeDescriptor`
 
 ## 约束
diff --git a/src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs b/src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs
index a63f76d64..2e60c71df 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Metadata/WorkflowExecutionReportDocumentMetadataProvider.cs
@@ -7,7 +7,10 @@ public sealed class WorkflowExecutionReportDocumentMetadataProvider
 {
     public DocumentIndexMetadata Metadata { get; } = new(
         IndexName: "workflow-execution-reports",
-        MappingJson: "{}",
-        Settings: new Dictionary<string, string>(StringComparer.Ordinal),
-        Aliases: new Dictionary<string, string>(StringComparer.Ordinal));
+        Mappings: new Dictionary<string, object?>(StringComparer.Ordinal)
+        {
+            ["dynamic"] = true,
+        },
+        Settings: new Dictionary<string, object?>(StringComparer.Ordinal),
+        Aliases: new Dictionary<string, object?>(StringComparer.Ordinal));
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
index 3044a45fd..3e994b8a5 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
@@ -24,6 +24,9 @@ public Task RefreshMetadataAsync(
         var updatedAt = _clock.UtcNow;
         return _materializationRouter.MutateAsync(actorId, report =>
         {
+            report.Id = actorId;
+            if (string.IsNullOrWhiteSpace(report.RootActorId))
+                report.RootActorId = actorId;
             report.CommandId = context.CommandId;
             report.WorkflowName = context.WorkflowName;
             report.Input = context.Input;
@@ -44,6 +47,9 @@ public Task MarkStoppedAsync(
         var updatedAt = _clock.UtcNow;
         return _materializationRouter.MutateAsync(actorId, report =>
         {
+            report.Id = actorId;
+            if (string.IsNullOrWhiteSpace(report.RootActorId))
+                report.RootActorId = actorId;
             if (report.CompletionStatus == WorkflowExecutionCompletionStatus.Running)
                 report.CompletionStatus = WorkflowExecutionCompletionStatus.Stopped;
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
index f85dd6006..9e28f8cc6 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
@@ -71,6 +71,9 @@ public async ValueTask ProjectAsync(WorkflowExecutionProjectionContext context,
         var now = ResolveEventTimestamp(envelope, _clock.UtcNow);
         await _materializationRouter.MutateAsync(context.RootActorId, report =>
         {
+            report.Id = context.RootActorId;
+            if (string.IsNullOrWhiteSpace(report.RootActorId))
+                report.RootActorId = context.RootActorId;
             var mutated = false;
             foreach (var reducer in reducers)
                 mutated |= reducer.Reduce(report, context, envelope, now);
@@ -91,6 +94,9 @@ public ValueTask CompleteAsync(
         var completedAt = _clock.UtcNow;
         return new ValueTask(_materializationRouter.MutateAsync(context.RootActorId, report =>
         {
+            report.Id = context.RootActorId;
+            if (string.IsNullOrWhiteSpace(report.RootActorId))
+                report.RootActorId = context.RootActorId;
             report.Topology = topology.Select(x => new WorkflowExecutionTopologyEdge(x.Parent, x.Child)).ToList();
             report.TopologySource = WorkflowExecutionTopologySource.RuntimeSnapshot;
             if (report.EndedAt < report.StartedAt)
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
index a57292d0d..dafee1efb 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
@@ -110,6 +110,73 @@ public async Task MutateAsync_WhenOptimisticConflictOccurs_ShouldRetryWithLatest
         handler.CapturedRequests[3].Body.Should().Contain("\"Value\":\"v2\"");
     }
 
+    [Fact]
+    public async Task UpsertAsync_WhenMetadataContainsStructuredObjects_ShouldSendStructuredIndexInitializationPayload()
+    {
+        var handler = new ScriptedHttpMessageHandler();
+        handler.EnqueueResponse(_ => CreateJsonResponse(
+            HttpStatusCode.OK,
+            """{"acknowledged":true}"""));
+        handler.EnqueueResponse(_ => CreateJsonResponse(
+            HttpStatusCode.OK,
+            """{"result":"created"}"""));
+
+        var options = new ElasticsearchProjectionReadModelStoreOptions
+        {
+            AutoCreateIndex = true,
+        };
+        options.Endpoints = ["http://localhost:9200"];
+
+        using var store = new ElasticsearchProjectionReadModelStore<StoreReadModel, string>(
+            options,
+            new DocumentIndexMetadata(
+                IndexName: "projection-core-tests",
+                Mappings: new Dictionary<string, object?>
+                {
+                    ["properties"] = new Dictionary<string, object?>
+                    {
+                        ["Value"] = new Dictionary<string, object?>
+                        {
+                            ["type"] = "keyword",
+                        },
+                    },
+                },
+                Settings: new Dictionary<string, object?>
+                {
+                    ["index"] = new Dictionary<string, object?>
+                    {
+                        ["number_of_shards"] = 1,
+                        ["number_of_replicas"] = 0,
+                    },
+                },
+                Aliases: new Dictionary<string, object?>
+                {
+                    ["projection-core-tests-alias"] = new Dictionary<string, object?>
+                    {
+                        ["is_write_index"] = true,
+                    },
+                }),
+            keySelector: model => model.Id,
+            keyFormatter: key => key,
+            httpMessageHandler: handler);
+
+        await store.UpsertAsync(new StoreReadModel
+        {
+            Id = "actor-1",
+            Value = "v1",
+        });
+
+        handler.CapturedRequests.Should().HaveCount(2);
+        handler.CapturedRequests[0].Method.Should().Be("PUT");
+        handler.CapturedRequests[0].PathAndQuery.Should().NotContain("/_doc/");
+        handler.CapturedRequests[0].Body.Should().Contain("\"mappings\"");
+        handler.CapturedRequests[0].Body.Should().Contain("\"properties\"");
+        handler.CapturedRequests[0].Body.Should().Contain("\"Value\"");
+        handler.CapturedRequests[0].Body.Should().Contain("\"number_of_shards\":1");
+        handler.CapturedRequests[0].Body.Should().Contain("\"projection-core-tests-alias\"");
+        handler.CapturedRequests[0].Body.Should().Contain("\"is_write_index\":true");
+    }
+
     private static ElasticsearchProjectionReadModelStore<StoreReadModel, string> CreateStore(
         ElasticsearchProjectionReadModelStoreOptions options,
         HttpMessageHandler handler)
@@ -119,9 +186,9 @@ private static ElasticsearchProjectionReadModelStore<StoreReadModel, string> Cre
             options,
             new DocumentIndexMetadata(
                 IndexName: "projection-core-tests",
-                MappingJson: "{}",
-                Settings: new Dictionary<string, string>(),
-                Aliases: new Dictionary<string, string>()),
+                Mappings: new Dictionary<string, object?>(),
+                Settings: new Dictionary<string, object?>(),
+                Aliases: new Dictionary<string, object?>()),
             keySelector: model => model.Id,
             keyFormatter: key => key,
             httpMessageHandler: handler);
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs
index ed8dc5fba..58a20d1cd 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs
@@ -237,6 +237,27 @@ await materializer.UpsertGraphAsync(new TestGraphReadModel
         store.ContainsNode("scope-1", "owner-1-node").Should().BeFalse();
     }
 
+    [Fact]
+    public async Task UpsertGraphAsync_WhenReadModelIdIsEmpty_ShouldThrow()
+    {
+        var store = new RecordingGraphStore();
+        var materializer = new ProjectionGraphMaterializer<TestGraphReadModel>(store);
+
+        Func<Task> act = () => materializer.UpsertGraphAsync(new TestGraphReadModel
+        {
+            Id = "",
+            GraphScope = "scope-1",
+            GraphNodes =
+            [
+                Node("root"),
+            ],
+            GraphEdges = [],
+        });
+
+        await act.Should().ThrowAsync<InvalidOperationException>()
+            .WithMessage("*requires a non-empty Id*");
+    }
+
     private static string BuildOwnerId(string id) => $"{typeof(TestGraphReadModel).FullName}:{id}";
 
     private static GraphNodeDescriptor Node(string nodeId)
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
index 939e3fad8..f6fca9cea 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
@@ -22,9 +22,9 @@ public async Task ElasticsearchStore_ShouldRoundtripUpsertAndMutate()
             options,
             new DocumentIndexMetadata(
                 IndexName: indexScope,
-                MappingJson: "{}",
-                Settings: new Dictionary<string, string>(),
-                Aliases: new Dictionary<string, string>()),
+                Mappings: new Dictionary<string, object?>(),
+                Settings: new Dictionary<string, object?>(),
+                Aliases: new Dictionary<string, object?>()),
             model => model.Id);
 
         var readModel = new ProviderStoreSmokeReadModel

From 22f4aaf732e8300dcc610461c21234107a00fc5c Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 04:12:15 +0800
Subject: [PATCH 37/46] Refactor Projection Ownership Management and Update
 Interfaces

- Replaced `WorkflowProjectionLeaseManager` with `IProjectionOwnershipCoordinator` to streamline ownership management in the projection lifecycle.
- Updated related services and interfaces to utilize the new ownership coordinator, enhancing clarity and reducing complexity in the orchestration of projections.
- Removed deprecated interfaces for lease management and activation services, ensuring a cleaner codebase.
- Revised documentation to reflect the architectural changes and clarify the new ownership management processes.
---
 docs/CQRS_ARCHITECTURE.md                     |  2 +-
 docs/FOUNDATION.md                            |  2 +-
 .../ServiceCollectionExtensions.cs            |  9 ++--
 .../IWorkflowProjectionActivationService.cs   |  6 ---
 .../IWorkflowProjectionLeaseManager.cs        | 14 ------
 .../IWorkflowProjectionLiveSinkForwarder.cs   |  7 ---
 .../IWorkflowProjectionReleaseService.cs      |  6 ---
 ...rkflowProjectionSinkSubscriptionManager.cs | 10 -----
 ...flowExecutionProjectionLifecycleService.cs |  8 ++--
 .../WorkflowProjectionActivationService.cs    | 13 +++---
 .../WorkflowProjectionLeaseManager.cs         | 25 -----------
 .../WorkflowProjectionLiveSinkForwarder.cs    |  3 +-
 .../WorkflowProjectionReleaseService.cs       | 16 +++----
 .../WorkflowProjectionSinkFailurePolicy.cs    |  4 +-
 ...rkflowProjectionSinkSubscriptionManager.cs |  9 +---
 .../Aevatar.Workflow.Projection/README.md     |  4 +-
 ...WorkflowExecutionProjectionServiceTests.cs | 12 ++----
 ...owProjectionOrchestrationComponentTests.cs | 43 ++++++-------------
 18 files changed, 48 insertions(+), 145 deletions(-)
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLeaseManager.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs
 delete mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionLeaseManager.cs

diff --git a/docs/CQRS_ARCHITECTURE.md b/docs/CQRS_ARCHITECTURE.md
index 38014d47b..3710ee11e 100644
--- a/docs/CQRS_ARCHITECTURE.md
+++ b/docs/CQRS_ARCHITECTURE.md
@@ -63,7 +63,7 @@ flowchart LR
    `ProjectionQueryPortServiceBase<>`（通用基类） +  
    `WorkflowProjectionActivationService`（激活） +  
    `WorkflowProjectionReleaseService`（释放） +  
-   `WorkflowProjectionLeaseManager`（ownership） +  
+   `IProjectionOwnershipCoordinator`（ownership） +  
    `WorkflowProjectionSinkSubscriptionManager`（订阅生命周期） +  
    `WorkflowProjectionLiveSinkForwarder`（sink 转发） +  
    `WorkflowProjectionSinkFailurePolicy`（异常策略） +  
diff --git a/docs/FOUNDATION.md b/docs/FOUNDATION.md
index f53f859c3..e0d1ad904 100644
--- a/docs/FOUNDATION.md
+++ b/docs/FOUNDATION.md
@@ -135,7 +135,7 @@ Agent 收到 `EventEnvelope` 后，会将两类处理器合并执行：
   - 两者复用 `Aevatar.CQRS.Projection.Core` 的通用基类：`ProjectionLifecyclePortServiceBase<>` / `ProjectionQueryPortServiceBase<>`
   - `WorkflowProjectionActivationService` 负责 projection 启动与上下文激活
   - `WorkflowProjectionReleaseService` 负责 idle 检测与 stop/release
-  - `WorkflowProjectionLeaseManager` 负责 ownership acquire/release
+  - `IProjectionOwnershipCoordinator` 负责 ownership acquire/release（由 Core 抽象直接注入）
   - `WorkflowProjectionSinkSubscriptionManager` 负责 live sink attach/detach
   - `WorkflowProjectionLiveSinkForwarder` 负责 run-event 推送与失败策略桥接
   - `WorkflowProjectionSinkFailurePolicy` 负责 sink 异常降级与错误事件发布
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index 829ebd6f3..91434a162 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -51,12 +51,11 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.TryAddSingleton<IProjectionOwnershipCoordinator, ActorProjectionOwnershipCoordinator>();
         services.TryAddSingleton<IProjectionSessionEventCodec<WorkflowRunEvent>, WorkflowRunEventSessionCodec>();
         services.TryAddSingleton<IProjectionSessionEventHub<WorkflowRunEvent>, ProjectionSessionEventHub<WorkflowRunEvent>>();
-        services.TryAddSingleton<IWorkflowProjectionLeaseManager, WorkflowProjectionLeaseManager>();
-        services.TryAddSingleton<IWorkflowProjectionActivationService, WorkflowProjectionActivationService>();
-        services.TryAddSingleton<IWorkflowProjectionReleaseService, WorkflowProjectionReleaseService>();
-        services.TryAddSingleton<IWorkflowProjectionSinkSubscriptionManager, WorkflowProjectionSinkSubscriptionManager>();
+        services.TryAddSingleton<IProjectionPortActivationService<WorkflowExecutionRuntimeLease>, WorkflowProjectionActivationService>();
+        services.TryAddSingleton<IProjectionPortReleaseService<WorkflowExecutionRuntimeLease>, WorkflowProjectionReleaseService>();
+        services.TryAddSingleton<IProjectionPortSinkSubscriptionManager<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent>, WorkflowProjectionSinkSubscriptionManager>();
         services.TryAddSingleton<IWorkflowProjectionSinkFailurePolicy, WorkflowProjectionSinkFailurePolicy>();
-        services.TryAddSingleton<IWorkflowProjectionLiveSinkForwarder, WorkflowProjectionLiveSinkForwarder>();
+        services.TryAddSingleton<IProjectionPortLiveSinkForwarder<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent>, WorkflowProjectionLiveSinkForwarder>();
         services.TryAddSingleton<IWorkflowProjectionReadModelUpdater, WorkflowProjectionReadModelUpdater>();
         services.TryAddSingleton<IWorkflowProjectionQueryReader, WorkflowProjectionQueryReader>();
         services.TryAddSingleton<IProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>, ProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>>();
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs
deleted file mode 100644
index 6d056f3d6..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionActivationService.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-using Aevatar.CQRS.Projection.Core.Abstractions;
-
-namespace Aevatar.Workflow.Projection.Orchestration;
-
-public interface IWorkflowProjectionActivationService
-    : IProjectionPortActivationService<WorkflowExecutionRuntimeLease>;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLeaseManager.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLeaseManager.cs
deleted file mode 100644
index 73c7fffae..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLeaseManager.cs
+++ /dev/null
@@ -1,14 +0,0 @@
-namespace Aevatar.Workflow.Projection.Orchestration;
-
-public interface IWorkflowProjectionLeaseManager
-{
-    Task AcquireAsync(
-        string rootActorId,
-        string commandId,
-        CancellationToken ct = default);
-
-    Task ReleaseAsync(
-        string rootActorId,
-        string commandId,
-        CancellationToken ct = default);
-}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs
deleted file mode 100644
index 5705aeab1..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionLiveSinkForwarder.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-using Aevatar.Workflow.Application.Abstractions.Runs;
-using Aevatar.CQRS.Projection.Core.Abstractions;
-
-namespace Aevatar.Workflow.Projection.Orchestration;
-
-public interface IWorkflowProjectionLiveSinkForwarder
-    : IProjectionPortLiveSinkForwarder<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent>;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs
deleted file mode 100644
index e8446ba2f..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionReleaseService.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-using Aevatar.CQRS.Projection.Core.Abstractions;
-
-namespace Aevatar.Workflow.Projection.Orchestration;
-
-public interface IWorkflowProjectionReleaseService
-    : IProjectionPortReleaseService<WorkflowExecutionRuntimeLease>;
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs
deleted file mode 100644
index 5a908e31f..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IWorkflowProjectionSinkSubscriptionManager.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-using Aevatar.Workflow.Application.Abstractions.Runs;
-using Aevatar.CQRS.Projection.Core.Abstractions;
-
-namespace Aevatar.Workflow.Projection.Orchestration;
-
-public interface IWorkflowProjectionSinkSubscriptionManager
-    : IProjectionPortSinkSubscriptionManager<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent>
-{
-    int GetSubscriptionCount(WorkflowExecutionRuntimeLease lease);
-}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionLifecycleService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionLifecycleService.cs
index de3afb5e9..21bceef9b 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionLifecycleService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionLifecycleService.cs
@@ -11,10 +11,10 @@ public sealed class WorkflowExecutionProjectionLifecycleService
 {
     public WorkflowExecutionProjectionLifecycleService(
         WorkflowExecutionProjectionOptions options,
-        IWorkflowProjectionActivationService activationService,
-        IWorkflowProjectionReleaseService releaseService,
-        IWorkflowProjectionSinkSubscriptionManager sinkSubscriptionManager,
-        IWorkflowProjectionLiveSinkForwarder liveSinkForwarder)
+        IProjectionPortActivationService<WorkflowExecutionRuntimeLease> activationService,
+        IProjectionPortReleaseService<WorkflowExecutionRuntimeLease> releaseService,
+        IProjectionPortSinkSubscriptionManager<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent> sinkSubscriptionManager,
+        IProjectionPortLiveSinkForwarder<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent> liveSinkForwarder)
         : base(
             () => options.Enabled,
             activationService,
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionActivationService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionActivationService.cs
index 5f183d7a7..b6def7398 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionActivationService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionActivationService.cs
@@ -1,26 +1,27 @@
 using Aevatar.CQRS.Projection.Core.Abstractions;
+using Aevatar.CQRS.Projection.Core.Orchestration;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
-public sealed class WorkflowProjectionActivationService : IWorkflowProjectionActivationService
+public sealed class WorkflowProjectionActivationService : IProjectionPortActivationService<WorkflowExecutionRuntimeLease>
 {
     private readonly IProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>> _lifecycle;
     private readonly IProjectionClock _clock;
     private readonly IWorkflowExecutionProjectionContextFactory _contextFactory;
-    private readonly IWorkflowProjectionLeaseManager _leaseManager;
+    private readonly IProjectionOwnershipCoordinator _ownershipCoordinator;
     private readonly IWorkflowProjectionReadModelUpdater _readModelUpdater;
 
     public WorkflowProjectionActivationService(
         IProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>> lifecycle,
         IProjectionClock clock,
         IWorkflowExecutionProjectionContextFactory contextFactory,
-        IWorkflowProjectionLeaseManager leaseManager,
+        IProjectionOwnershipCoordinator ownershipCoordinator,
         IWorkflowProjectionReadModelUpdater readModelUpdater)
     {
         _lifecycle = lifecycle;
         _clock = clock;
         _contextFactory = contextFactory;
-        _leaseManager = leaseManager;
+        _ownershipCoordinator = ownershipCoordinator;
         _readModelUpdater = readModelUpdater;
     }
 
@@ -33,7 +34,7 @@ public async Task<WorkflowExecutionRuntimeLease> EnsureAsync(
     {
         ArgumentException.ThrowIfNullOrWhiteSpace(rootActorId);
 
-        await _leaseManager.AcquireAsync(rootActorId, commandId, ct);
+        await _ownershipCoordinator.AcquireAsync(rootActorId, commandId, ct);
         try
         {
             var startedAt = _clock.UtcNow;
@@ -62,7 +63,7 @@ private async Task TryReleaseProjectionOwnershipAsync(
     {
         try
         {
-            await _leaseManager.ReleaseAsync(rootActorId, commandId, CancellationToken.None);
+            await _ownershipCoordinator.ReleaseAsync(rootActorId, commandId, CancellationToken.None);
         }
         catch
         {
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionLeaseManager.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionLeaseManager.cs
deleted file mode 100644
index a24b35000..000000000
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionLeaseManager.cs
+++ /dev/null
@@ -1,25 +0,0 @@
-using Aevatar.CQRS.Projection.Core.Orchestration;
-
-namespace Aevatar.Workflow.Projection.Orchestration;
-
-public sealed class WorkflowProjectionLeaseManager : IWorkflowProjectionLeaseManager
-{
-    private readonly IProjectionOwnershipCoordinator _ownershipCoordinator;
-
-    public WorkflowProjectionLeaseManager(IProjectionOwnershipCoordinator ownershipCoordinator)
-    {
-        _ownershipCoordinator = ownershipCoordinator;
-    }
-
-    public Task AcquireAsync(
-        string rootActorId,
-        string commandId,
-        CancellationToken ct = default) =>
-        _ownershipCoordinator.AcquireAsync(rootActorId, commandId, ct);
-
-    public Task ReleaseAsync(
-        string rootActorId,
-        string commandId,
-        CancellationToken ct = default) =>
-        _ownershipCoordinator.ReleaseAsync(rootActorId, commandId, ct);
-}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionLiveSinkForwarder.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionLiveSinkForwarder.cs
index 34dd9d299..c1882662b 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionLiveSinkForwarder.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionLiveSinkForwarder.cs
@@ -2,7 +2,8 @@
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
-public sealed class WorkflowProjectionLiveSinkForwarder : IWorkflowProjectionLiveSinkForwarder
+public sealed class WorkflowProjectionLiveSinkForwarder
+    : IProjectionPortLiveSinkForwarder<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent>
 {
     private readonly IWorkflowProjectionSinkFailurePolicy _sinkFailurePolicy;
 
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReleaseService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReleaseService.cs
index 2ec9277ec..6aff41894 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReleaseService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReleaseService.cs
@@ -1,24 +1,22 @@
 using Aevatar.CQRS.Projection.Core.Abstractions;
+using Aevatar.CQRS.Projection.Core.Orchestration;
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
-public sealed class WorkflowProjectionReleaseService : IWorkflowProjectionReleaseService
+public sealed class WorkflowProjectionReleaseService : IProjectionPortReleaseService<WorkflowExecutionRuntimeLease>
 {
     private readonly IProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>> _lifecycle;
-    private readonly IWorkflowProjectionSinkSubscriptionManager _sinkSubscriptionManager;
     private readonly IWorkflowProjectionReadModelUpdater _readModelUpdater;
-    private readonly IWorkflowProjectionLeaseManager _leaseManager;
+    private readonly IProjectionOwnershipCoordinator _ownershipCoordinator;
 
     public WorkflowProjectionReleaseService(
         IProjectionLifecycleService<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>> lifecycle,
-        IWorkflowProjectionSinkSubscriptionManager sinkSubscriptionManager,
         IWorkflowProjectionReadModelUpdater readModelUpdater,
-        IWorkflowProjectionLeaseManager leaseManager)
+        IProjectionOwnershipCoordinator ownershipCoordinator)
     {
         _lifecycle = lifecycle;
-        _sinkSubscriptionManager = sinkSubscriptionManager;
         _readModelUpdater = readModelUpdater;
-        _leaseManager = leaseManager;
+        _ownershipCoordinator = ownershipCoordinator;
     }
 
     public async Task ReleaseIfIdleAsync(
@@ -28,12 +26,12 @@ public async Task ReleaseIfIdleAsync(
         ArgumentNullException.ThrowIfNull(runtimeLease);
         ct.ThrowIfCancellationRequested();
 
-        if (_sinkSubscriptionManager.GetSubscriptionCount(runtimeLease) > 0)
+        if (runtimeLease.GetLiveSinkSubscriptionCount() > 0)
             return;
 
         var context = runtimeLease.Context;
         await _lifecycle.StopAsync(context, ct);
         await _readModelUpdater.MarkStoppedAsync(context.RootActorId, ct);
-        await _leaseManager.ReleaseAsync(context.RootActorId, runtimeLease.CommandId, ct);
+        await _ownershipCoordinator.ReleaseAsync(context.RootActorId, runtimeLease.CommandId, ct);
     }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionSinkFailurePolicy.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionSinkFailurePolicy.cs
index c705417a2..b724e67e9 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionSinkFailurePolicy.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionSinkFailurePolicy.cs
@@ -7,12 +7,12 @@ public sealed class WorkflowProjectionSinkFailurePolicy : IWorkflowProjectionSin
     public const string SinkBackpressureErrorCode = "RUN_SINK_BACKPRESSURE";
     public const string SinkWriteErrorCode = "RUN_SINK_WRITE_FAILED";
 
-    private readonly IWorkflowProjectionSinkSubscriptionManager _sinkSubscriptionManager;
+    private readonly IProjectionPortSinkSubscriptionManager<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent> _sinkSubscriptionManager;
     private readonly IProjectionSessionEventHub<WorkflowRunEvent> _runEventStreamHub;
     private readonly IProjectionClock _clock;
 
     public WorkflowProjectionSinkFailurePolicy(
-        IWorkflowProjectionSinkSubscriptionManager sinkSubscriptionManager,
+        IProjectionPortSinkSubscriptionManager<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent> sinkSubscriptionManager,
         IProjectionSessionEventHub<WorkflowRunEvent> runEventStreamHub,
         IProjectionClock clock)
     {
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionSinkSubscriptionManager.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionSinkSubscriptionManager.cs
index 780f9344b..9a85fc4c9 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionSinkSubscriptionManager.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionSinkSubscriptionManager.cs
@@ -2,7 +2,8 @@
 
 namespace Aevatar.Workflow.Projection.Orchestration;
 
-public sealed class WorkflowProjectionSinkSubscriptionManager : IWorkflowProjectionSinkSubscriptionManager
+public sealed class WorkflowProjectionSinkSubscriptionManager
+    : IProjectionPortSinkSubscriptionManager<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent>
 {
     private readonly IProjectionSessionEventHub<WorkflowRunEvent> _runEventStreamHub;
 
@@ -46,10 +47,4 @@ public async Task DetachAsync(
         if (streamSubscription != null)
             await streamSubscription.DisposeAsync();
     }
-
-    public int GetSubscriptionCount(WorkflowExecutionRuntimeLease lease)
-    {
-        ArgumentNullException.ThrowIfNull(lease);
-        return lease.GetLiveSinkSubscriptionCount();
-    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index cb08036f6..4b0556ba1 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -12,7 +12,7 @@
 - 编排组件拆分（避免单类过重）：
   - `WorkflowProjectionActivationService`（projection 启动与上下文激活）
   - `WorkflowProjectionReleaseService`（idle 检测与停止/释放）
-  - `WorkflowProjectionLeaseManager`（ownership acquire/release）
+  - `IProjectionOwnershipCoordinator`（ownership acquire/release，由 Core 抽象直接注入）
   - `WorkflowProjectionSinkSubscriptionManager`（live sink attach/detach/replace）
   - `WorkflowProjectionLiveSinkForwarder`（sink 推送与失败策略路由）
   - `WorkflowProjectionSinkFailurePolicy`（sink 异常策略）
@@ -37,7 +37,7 @@
 
 ## 统一运行链路
 
-1. `EnsureActorProjectionAsync` 由 `WorkflowExecutionProjectionLifecycleService` 转发到 `WorkflowProjectionActivationService`，先通过 `WorkflowProjectionLeaseManager`（底层复用 `Aevatar.CQRS.Projection.Core` ownership coordinator）申请 ownership，再创建 projection 上下文并注册 actor stream 订阅
+1. `EnsureActorProjectionAsync` 由 `WorkflowExecutionProjectionLifecycleService` 转发到 `WorkflowProjectionActivationService`，直接通过 `IProjectionOwnershipCoordinator` 申请 ownership，再创建 projection 上下文并注册 actor stream 订阅
 2. 每条 `EventEnvelope` 进入统一 coordinator，一对多调用已注册 projector
 3. `WorkflowExecutionReadModelProjector` 驱动 reducers 生成并更新 read model，并通过 `IProjectionMaterializationRouter` 执行 Document/Graph 单写或双写
 4. AI 通用事件通过 `Aevatar.Workflow.Extensions.AIProjection` 扩展接入，扩展内部复用 `Aevatar.AI.Projection` 的默认 applier + reducer，将事件写入 `WorkflowExecutionReport` 的 AI 能力字段，业务层无需重复维护映射代码
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
index 9edd8701a..c11aef7e9 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
@@ -582,7 +582,6 @@ private static ProjectionPortsHarness CreateService(
             streams,
             new WorkflowRunEventSessionCodec());
         var mapper = new WorkflowExecutionReadModelMapper();
-        var leaseManager = new WorkflowProjectionLeaseManager(ownershipCoordinator);
         var sinkManager = new WorkflowProjectionSinkSubscriptionManager(runEventStreamHub);
         var sinkFailurePolicy = new WorkflowProjectionSinkFailurePolicy(sinkManager, runEventStreamHub, resolvedClock);
         var readModelUpdater = new WorkflowProjectionReadModelUpdater(materializationRouter, resolvedClock);
@@ -594,13 +593,12 @@ private static ProjectionPortsHarness CreateService(
             lifecycle,
             resolvedClock,
             new DefaultWorkflowExecutionProjectionContextFactory(),
-            leaseManager,
+            ownershipCoordinator,
             readModelUpdater);
         var releaseService = new WorkflowProjectionReleaseService(
             lifecycle,
-            sinkManager,
             readModelUpdater,
-            leaseManager);
+            ownershipCoordinator);
         var liveSinkForwarder = new WorkflowProjectionLiveSinkForwarder(sinkFailurePolicy);
 
         var lifecyclePort = new WorkflowExecutionProjectionLifecycleService(
@@ -628,7 +626,6 @@ private static ProjectionPortsHarness CreateServiceForStartFailure(
             graphStore);
         var runEventHub = new NoOpWorkflowRunEventHub();
         var mapper = new WorkflowExecutionReadModelMapper();
-        var leaseManager = new WorkflowProjectionLeaseManager(ownershipCoordinator);
         var sinkManager = new WorkflowProjectionSinkSubscriptionManager(runEventHub);
         var sinkFailurePolicy = new WorkflowProjectionSinkFailurePolicy(sinkManager, runEventHub, clock);
         var readModelUpdater = new WorkflowProjectionReadModelUpdater(materializationRouter, clock);
@@ -640,13 +637,12 @@ private static ProjectionPortsHarness CreateServiceForStartFailure(
             lifecycle,
             clock,
             new DefaultWorkflowExecutionProjectionContextFactory(),
-            leaseManager,
+            ownershipCoordinator,
             readModelUpdater);
         var releaseService = new WorkflowProjectionReleaseService(
             lifecycle,
-            sinkManager,
             readModelUpdater,
-            leaseManager);
+            ownershipCoordinator);
         var liveSinkForwarder = new WorkflowProjectionLiveSinkForwarder(sinkFailurePolicy);
 
         var options = new WorkflowExecutionProjectionOptions
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
index e02c802c1..0076dd1ba 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
@@ -12,19 +12,6 @@ namespace Aevatar.Workflow.Host.Api.Tests;
 
 public sealed class WorkflowProjectionOrchestrationComponentTests
 {
-    [Fact]
-    public async Task LeaseManager_ShouldForwardAcquireAndRelease()
-    {
-        var ownership = new TrackingOwnershipCoordinator();
-        var manager = new WorkflowProjectionLeaseManager(ownership);
-
-        await manager.AcquireAsync("actor-1", "cmd-1");
-        await manager.ReleaseAsync("actor-1", "cmd-1");
-
-        ownership.Acquired.Should().ContainSingle().Which.Should().Be(("actor-1", "cmd-1"));
-        ownership.Released.Should().ContainSingle().Which.Should().Be(("actor-1", "cmd-1"));
-    }
-
     [Fact]
     public async Task ActivationService_ShouldStartProjectionAndReturnRuntimeLease()
     {
@@ -35,7 +22,7 @@ public async Task ActivationService_ShouldStartProjectionAndReturnRuntimeLease()
             lifecycle,
             new FixedClock(new DateTimeOffset(2026, 2, 21, 10, 0, 0, TimeSpan.Zero)),
             new DefaultWorkflowExecutionProjectionContextFactory(),
-            new WorkflowProjectionLeaseManager(ownership),
+            ownership,
             readModelUpdater);
 
         var lease = await activationService.EnsureAsync(
@@ -60,7 +47,7 @@ public async Task ActivationService_WhenStartFails_ShouldReleaseOwnershipAndReth
             new ThrowingLifecycleService(new InvalidOperationException("start failed")),
             new FixedClock(new DateTimeOffset(2026, 2, 21, 10, 0, 0, TimeSpan.Zero)),
             new DefaultWorkflowExecutionProjectionContextFactory(),
-            new WorkflowProjectionLeaseManager(ownership),
+            ownership,
             new RecordingReadModelUpdater());
 
         var act = async () => await activationService.EnsureAsync(
@@ -192,17 +179,17 @@ public async Task SinkSubscriptionManager_ShouldReplaceSameSinkSubscription()
 
         await manager.AttachOrReplaceAsync(lease, sink, _ => ValueTask.CompletedTask);
         var first = hub.Subscriptions.Should().ContainSingle().Subject;
-        manager.GetSubscriptionCount(lease).Should().Be(1);
+        lease.GetLiveSinkSubscriptionCount().Should().Be(1);
 
         await manager.AttachOrReplaceAsync(lease, sink, _ => ValueTask.CompletedTask);
         hub.Subscriptions.Should().HaveCount(2);
         first.Disposed.Should().BeTrue();
-        manager.GetSubscriptionCount(lease).Should().Be(1);
+        lease.GetLiveSinkSubscriptionCount().Should().Be(1);
 
         var second = hub.Subscriptions[1];
         await manager.DetachAsync(lease, sink);
         second.Disposed.Should().BeTrue();
-        manager.GetSubscriptionCount(lease).Should().Be(0);
+        lease.GetLiveSinkSubscriptionCount().Should().Be(0);
     }
 
     [Fact]
@@ -256,14 +243,12 @@ public async Task SinkFailurePolicy_ShouldHandleBackpressureAndCompletedAndUnkno
     public async Task ReleaseService_WhenNoLiveSink_ShouldStopMarkAndRelease()
     {
         var lifecycle = new RecordingLifecycleService();
-        var sinkManager = new RecordingSinkSubscriptionManager();
         var readModelUpdater = new RecordingReadModelUpdater();
         var ownership = new TrackingOwnershipCoordinator();
         var releaseService = new WorkflowProjectionReleaseService(
             lifecycle,
-            sinkManager,
             readModelUpdater,
-            new WorkflowProjectionLeaseManager(ownership));
+            ownership);
         var lease = CreateLease("actor-release", "cmd-release");
 
         await releaseService.ReleaseIfIdleAsync(lease, CancellationToken.None);
@@ -277,15 +262,16 @@ public async Task ReleaseService_WhenNoLiveSink_ShouldStopMarkAndRelease()
     public async Task ReleaseService_WhenLiveSinkExists_ShouldSkipStopAndRelease()
     {
         var lifecycle = new RecordingLifecycleService();
-        var sinkManager = new RecordingSinkSubscriptionManager { SubscriptionCount = 1 };
         var readModelUpdater = new RecordingReadModelUpdater();
         var ownership = new TrackingOwnershipCoordinator();
         var releaseService = new WorkflowProjectionReleaseService(
             lifecycle,
-            sinkManager,
             readModelUpdater,
-            new WorkflowProjectionLeaseManager(ownership));
+            ownership);
         var lease = CreateLease("actor-busy", "cmd-busy");
+        lease.AttachOrReplaceLiveSinkSubscription(
+            new NoopRunEventSink(),
+            new TrackingSubscription());
 
         await releaseService.ReleaseIfIdleAsync(lease, CancellationToken.None);
 
@@ -382,9 +368,9 @@ public FixedClock(DateTimeOffset utcNow)
         public DateTimeOffset UtcNow { get; }
     }
 
-    private sealed class RecordingSinkSubscriptionManager : IWorkflowProjectionSinkSubscriptionManager
+    private sealed class RecordingSinkSubscriptionManager
+        : IProjectionPortSinkSubscriptionManager<WorkflowExecutionRuntimeLease, IWorkflowRunEventSink, WorkflowRunEvent>
     {
-        public int SubscriptionCount { get; set; }
         public int DetachCalls { get; private set; }
 
         public Task AttachOrReplaceAsync(
@@ -412,11 +398,6 @@ public Task DetachAsync(
             return Task.CompletedTask;
         }
 
-        public int GetSubscriptionCount(WorkflowExecutionRuntimeLease lease)
-        {
-            _ = lease;
-            return SubscriptionCount;
-        }
     }
 
     private sealed class RecordingReadModelUpdater : IWorkflowProjectionReadModelUpdater

From be1abf6c1eb2fec255ca69e114a8d28310821985 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 04:29:55 +0800
Subject: [PATCH 38/46] Add Projection Storage Architecture Audit Scorecard

- Introduced a new audit scorecard for the Projection storage architecture, detailing the objectives, scope, and evaluation criteria for assessing the relationship between DocumentStore and GraphStore.
- Defined a clear scoring methodology and outlined the current architectural conclusions, highlighting areas of redundancy and structural issues.
- Removed the outdated Projection Store / ReadModel scorecard to streamline documentation and focus on the new audit framework.
- Updated documentation to reflect the latest findings and recommendations for future architectural improvements and refactoring priorities.
---
 ...orage-architecture-scorecard-2026-02-24.md | 151 ++++++++++++++++++
 ...on-store-readmodel-scorecard-2026-02-24.md |  66 --------
 2 files changed, 151 insertions(+), 66 deletions(-)
 create mode 100644 docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
 delete mode 100644 docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md

diff --git a/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
new file mode 100644
index 000000000..82f51d727
--- /dev/null
+++ b/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
@@ -0,0 +1,151 @@
+# Projection 存储完整审计与架构评分（2026-02-24，按“ReadModel -> N Stores”口径重评）
+
+## 1. 审计目标
+
+1. 全面审计 Projection 存储层（抽象、Runtime、Provider、Workflow 接入）。
+2. 严格确认 `DocumentStore` 与 `GraphStore` 的关系。
+3. 严格确认“一对多（1:N）”是否按你定义落地：`1个ReadModel -> 多个Store`。
+4. 找出全部可定位冗余并重新评分。
+
+## 2. 评分口径声明（本次重评）
+
+1. **你的口径是唯一准绳**：`DocumentStore` 与 `GraphStore` 都应是 `Store` 家族中的平行实现类型。
+2. **一对多定义**：不是“Document 一对多 + Graph 一对多”两条主干，而是“同一个 ReadModel 可被同一投影链路分发到多个 Store（其中包含 Document/Graph）”。
+3. 若实现为“双主干 + 分支编排”，即便功能可用，也按“并行性不足”扣分。
+
+## 3. 审计范围
+
+1. `src/Aevatar.CQRS.Projection.Stores.Abstractions`
+2. `src/Aevatar.CQRS.Projection.Runtime.Abstractions`
+3. `src/Aevatar.CQRS.Projection.Runtime`
+4. `src/Aevatar.CQRS.Projection.Providers.InMemory`
+5. `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
+6. `src/Aevatar.CQRS.Projection.Providers.Neo4j`
+7. `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting`
+8. `test/Aevatar.CQRS.Projection.Core.Tests`
+9. `test/Aevatar.Workflow.Host.Api.Tests`
+
+## 4. 验证基线（本轮沿用）
+
+1. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
+2. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
+3. `bash tools/ci/architecture_guards.sh`
+
+结果：通过。
+
+## 5. 结构结论（按新口径）
+
+### 5.1 结论 A：概念上“平行实现”成立
+
+1. `WorkflowExecutionReport` 同时实现 `IDocumentReadModel` 与 `IGraphReadModel`，具备“双存储能力”事实（`src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs:36-37`）。
+2. Provider 注册侧确实可同时启用 ES 与 Neo4j（`src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs:43-76`）。
+
+### 5.2 结论 B：实现上“同层并行”**不成立（你的感觉是对的）**
+
+1. **根抽象不是同层模型**：
+   - Document：`IDocumentProjectionStore<TReadModel,TKey>`（CRUD形状）
+   - Graph：`IProjectionGraphStore`（节点/边形状）
+   这不是统一 `IProjectionStore<TReadModel,...>` 的同层实现。
+2. **路由是硬编码双分支**：
+   - `ProjectionMaterializationRouter` 用 `IsAssignableFrom` 分别判断 `IDocumentReadModel/IGraphReadModel`（`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs:13-14`）。
+   - 这意味着“ReadModel -> Store列表”不是统一分发表达，而是“Document链 + Graph链”。
+3. **Graph 多一层专有中间件**：
+   - Graph 需要 `ProjectionGraphMaterializer` 做 descriptor -> store model 转换（`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs:116-196`）。
+   - Document 无对等层，导致链路层级不对称。
+4. **Metadata 机制只有 Document 分支**：
+   - `IProjectionDocumentMetadataProvider` / `IProjectionDocumentMetadataResolver` 存在（`src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs:3-6`，`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs:5-19`）。
+   - Graph 没有同层 metadata 契约。
+
+## 6. 当前实际架构图（显示“非同层并行”）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+  RM["ReadModel(TReadModel)"] --> RT["ProjectionMaterializationRouter(双分支判定)"]
+
+  RT -->|"IDocumentReadModel"| DOCF["ProjectionDocumentStoreFanout"]
+  RT -->|"IGraphReadModel"| GRM["ProjectionGraphMaterializer(专有转换层)"]
+  GRM --> GRAF["ProjectionGraphStoreFanout"]
+
+  DOCM["Document Metadata Resolver"] --> DOCF
+
+  DOCF --> D1["Document Provider #1(Query)"]
+  DOCF --> D2["Document Provider #2...#N"]
+
+  GRAF --> G1["Graph Provider #1(Query)"]
+  GRAF --> G2["Graph Provider #2...#N"]
+```
+
+## 7. 冗余问题清单（重排后）
+
+### P1-1（高）“ReadModel -> 多Store”未被统一抽象表达
+
+1. 当前是 Document/Graph 双主干 + 分支路由，不是单一 `Store` 家族同层并行。
+2. 直接导致你感知的“实现不并行”。
+
+### P1-2（高）Graph 双模型并存且高度重复
+
+1. ReadModel 侧：`GraphNodeDescriptor`/`GraphEdgeDescriptor`。
+2. Store 侧：`ProjectionGraphNode`/`ProjectionGraphEdge`。
+3. Runtime 强制桥接转换。
+
+### P1-3（高）能力判定依赖 marker + 运行时反射
+
+1. `IDocumentReadModel` 是空 marker。
+2. `ProjectionMaterializationRouter` 通过 `IsAssignableFrom` 路由。
+3. 编译期无法直接保证“同层 Store 分发能力矩阵”。
+
+### P1-4（高）Metadata 能力只在 Document 分支存在
+
+1. Document 有 metadata provider/resolver。
+2. Graph 分支没有等价契约，进一步拉大两条链路语义差距。
+
+### P2-5（中）运行态系统键暴露到 Stores.Abstractions
+
+1. `ProjectionGraphSystemPropertyKeys` 位于抽象层。
+2. 实际语义是 runtime/provider 的内部生命周期键。
+
+### P2-6（中）Neo4j managed 信息双存
+
+1. `propertiesJson` 与 `projectionManaged/projectionOwnerId` 同时存储。
+2. 引入冗余与一致性维护成本。
+
+### P2-7（中）文档陈旧术语残留
+
+1. 仍有 `IProjectionReadModelStore` 等旧术语残留。
+
+### P3-8（低）`ProjectionGraphSubgraph` 可变结构可进一步收敛
+
+1. 非功能缺陷，但语义表达可更简化。
+
+## 8. 架构评分（严格，按你口径）
+
+### 8.1 评分维度与结果
+
+| 维度 | 权重 | 得分 | 说明 |
+|---|---:|---:|---|
+| `ReadModel -> N Stores` 口径符合度 | 20 | 13 | 能同时投影到多 provider，但分发不是统一 store 家族。 |
+| Document/Graph 同层并行一致性 | 20 | 10 | 目前是双主干 + Graph 专有中间层，层级不对齐。 |
+| 抽象最小化与去冗余 | 20 | 12 | 双模型、marker+反射、系统键外泄导致冗余偏高。 |
+| 数据模型一致性 | 15 | 10 | Graph descriptor/store model 重复，Neo4j managed 双存。 |
+| Provider 扩展一致性 | 10 | 8 | 注册模式一致，但能力面不对称（metadata、materializer）。 |
+| 测试与治理门禁 | 10 | 9 | fan-out 语义与基础门禁覆盖较好。 |
+| 文档一致性 | 5 | 2 | 仍有旧术语未清理。 |
+
+### 8.2 总分
+
+- **64 / 100（C-，严格口径）**
+
+## 9. 审计结论（直接回答你的问题）
+
+1. 你说的“一对多”定义是对的，且应作为重构目标模型。
+2. 当前代码**功能上可并行写入**，但**架构形状并不并行**，你的不适感来自真实的结构不对称。
+3. 现状更准确描述是：`ReadModel` 经过“Document链 + Graph链”双分支处理，而不是统一 `Store` 家族的一体化多路分发。
+
+## 10. 后续重构优先级（无兼容性）
+
+1. **P0**：引入统一 Store 抽象与统一分发器，把 `DocumentStore/GraphStore` 收敛为同层实现。
+2. **P0**：删除 Graph 双模型之一，消灭 `ProjectionGraphMaterializer` 的桥接角色。
+3. **P1**：移除 marker + 反射路由，改成显式能力注册或类型化 Store 绑定。
+4. **P1**：将 runtime 生命周期系统键从 `Stores.Abstractions` 下沉到 runtime/provider。
+5. **P1**：补齐文档清理，消除旧术语和旧架构描述。
diff --git a/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
deleted file mode 100644
index 04bb3e296..000000000
--- a/docs/audit-scorecard/projection-store-readmodel-scorecard-2026-02-24.md
+++ /dev/null
@@ -1,66 +0,0 @@
-# Projection Store / ReadModel 严格评分卡（2026-02-24 重新分析）
-
-## 1. 审计范围
-
-1. `src/Aevatar.CQRS.Projection.Stores.Abstractions`
-2. `src/Aevatar.CQRS.Projection.Runtime.Abstractions`
-3. `src/Aevatar.CQRS.Projection.Runtime`
-4. `src/Aevatar.CQRS.Projection.Providers.InMemory`
-5. `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
-6. `src/Aevatar.CQRS.Projection.Providers.Neo4j`
-7. `src/workflow/Aevatar.Workflow.Projection`
-8. `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting`
-9. `test/Aevatar.CQRS.Projection.Core.Tests`
-10. `test/Aevatar.Workflow.Host.Api.Tests`
-
-## 2. 本次验证基线
-
-本次重新分析执行并通过：
-
-1. `dotnet build aevatar.slnx --nologo`
-2. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
-3. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
-4. `bash tools/ci/architecture_guards.sh`
-5. `bash tools/ci/projection_route_mapping_guard.sh`
-6. `bash tools/ci/test_stability_guards.sh`
-7. `dotnet test aevatar.slnx --nologo`
-
-## 3. 总分结论
-
-- **总分：92 / 100**
-- **等级：B+（严格口径，高于上版 84）**
-- **结论：核心架构问题（查询源规则不清、图清理窗口清理、Neo4j 子图查询放大）已实质修复；当前主要短板转为跨 Store 一致性与可观测性。**
-
-## 4. 维度评分（严格）
-
-| 维度 | 权重 | 得分 | 证据与说明 |
-|---|---:|---:|---|
-| 架构边界与抽象收敛 | 15 | 15 | `IProjectionStoreRegistration` 收敛为最小契约（`ProviderName + Create`），Runtime 组装边界清晰（`IProjectionStoreRegistration.cs`，`DelegateProjectionStoreRegistration.cs`）。 |
-| Provider 模型清晰度 | 15 | 15 | Document/Graph fan-out 使用统一规则“注册顺序即查询顺序”（首注册 provider 读，全部 provider 写 fan-out）（`ProjectionDocumentStoreFanout.cs`，`ProjectionGraphStoreFanout.cs`）；Workflow Host 落地耐久优先注册顺序（`WorkflowProjectionProviderServiceCollectionExtensions.cs`）。 |
-| Document 索引语义完整性 | 20 | 19 | `DocumentIndexMetadata` 已升级为结构化对象（`Mappings/Settings/Aliases`），ES 初始化直接消费结构化元数据（`DocumentIndexMetadata.cs`，`ElasticsearchProjectionReadModelStore.cs`）；复杂 metadata 组合行为已有单测覆盖（`ElasticsearchProjectionReadModelStoreBehaviorTests.cs`）。扣分：仍缺少真实 ES 集群下复杂 settings/aliases 的端到端回归。 |
-| Graph 关系语义与正确性 | 15 | 15 | Graph materializer 已完成 owner-based 边/节点差集清理，节点删除前有邻接检查防误删共享节点（`ProjectionGraphMaterializer.cs`）；owner 标识收敛为 `IGraphReadModel.Id`，`Id` 为空 fail-fast，消除 fallback 残留语义（`ProjectionGraphMaterializer.cs`、`ProjectionGraphMaterializerTests.cs`）。 |
-| 一致性与失败语义 | 10 | 7 | Router 仍是顺序写入（先 Document，再 Graph）（`ProjectionMaterializationRouter.cs:31-37`），跨 provider 非事务；`Mutate` 后读回再刷新 graph（`ProjectionMaterializationRouter.cs:49-63`），失败时可能留部分成功状态。 |
-| Provider 实现质量与性能 | 10 | 9 | ES `MutateAsync` OCC 重试与冲突处理较完整（`ElasticsearchProjectionReadModelStore.cs`）；Neo4j `GetSubgraphAsync` 已从逐节点循环改为单次 Cypher 拉边 + 一次节点补全（`Neo4jProjectionGraphStore.cs`），显著降低查询放大。扣分：仍缺少高规模数据集下的性能基准回归。 |
-| 可观测性 | 5 | 3 | Fan-out 初始化日志已有 provider 信息（`ProjectionDocumentStoreFanout.cs:76-80`，`ProjectionGraphStoreFanout.cs:62-65`）；ES 冲突日志较完整（`ElasticsearchProjectionReadModelStore.cs:124-133`）。扣分：Graph provider 成功路径指标/日志仍偏薄，Neo4j 侧主要是反序列化 warning（`Neo4jProjectionGraphStore.cs:546-551`）。 |
-| 测试与治理门禁 | 10 | 9 | fan-out 查询顺序与写扩散语义测试已补齐（`ProjectionReadModelRuntimeTests.cs`，`ProjectionReadModelStoreSelectorTests.cs`）；owner 维度边/节点清理与空 Id fail-fast 回归已补（`ProjectionGraphMaterializerTests.cs`）；structured metadata 初始化测试已补（`ElasticsearchProjectionReadModelStoreBehaviorTests.cs`）；门禁脚本通过。扣分：仍缺少真实 Neo4j/ES 双 provider 联动压力测试。 |
-
-## 5. 关键扣分项（按优先级）
-
-### P1
-
-1. **跨 Store 写入非原子**
-   - `ProjectionMaterializationRouter` 仍是串行双写，缺少统一事务/补偿机制（`ProjectionMaterializationRouter.cs:31-37`）。
-
-### P2
-
-1. **跨 Provider 高规模性能基线不足**
-   - 缺少 Neo4j/ES 双 provider 联动的压力测试与容量基线，尚未形成性能门禁。
-
-### P3
-
-1. **Graph 成功路径可观测性不足**
-   - 缺少统一写入吞吐、清理计数、owner 命中率等指标日志。
-
-## 6. 重新评分判定
-
-当前实现已进入“结构清晰 + 关键缺陷大幅收敛”的阶段，但在严格生产工程标准下仍未到 A 档。重新评分为 **92/100（B+）**。

From cd141f9414cd529eb2728560367092ce34c0a612 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 04:40:06 +0800
Subject: [PATCH 39/46] Enhance Projection Storage Architecture Documentation

- Added a new section detailing the target architecture diagram for the Projection storage, illustrating the relationship between ReadModel, UnifiedProjectionStoreDispatcher, and various StoreBindings.
- Clarified the semantics of the architecture, emphasizing the single-instance provider model for DocumentStore and GraphStore.
- Updated the redundancy issue list and refactored future refactoring priorities to align with the new architectural insights.
- Revised documentation to improve clarity and ensure consistency with the latest architectural framework.
---
 ...orage-architecture-scorecard-2026-02-24.md | 152 +++++++++++++++++-
 1 file changed, 145 insertions(+), 7 deletions(-)

diff --git a/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
index 82f51d727..35c939510 100644
--- a/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
+++ b/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
@@ -76,6 +76,30 @@ flowchart LR
   GRAF --> G2["Graph Provider #2...#N"]
 ```
 
+### 6.1 目标架构图（同层并行，且同类 Provider 仅 1 个）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+  RM["ReadModel(TReadModel)"] --> UD["UnifiedProjectionStoreDispatcher<TReadModel,TKey>"]
+  UD --> W1["StoreBinding #1: DocumentStoreAdapter<TReadModel,TKey>"]
+  UD --> W2["StoreBinding #2: GraphStoreAdapter<TReadModel,TKey>"]
+  UD --> Wn["StoreBinding #N: OtherStoreAdapter<TReadModel,TKey>"]
+
+  M1["ReadModelDocumentMetadata<TReadModel>"] --> W1
+  M2["ReadModelGraphMetadata<TReadModel>"] --> W2
+
+  W1 --> D1["Document Provider(单实例): Elasticsearch"]
+
+  W2 --> G1["Graph Provider(单实例): Neo4j"]
+```
+
+目标语义：
+
+1. `DocumentStore` 与 `GraphStore` 处于同一层抽象（`StoreBinding`），只是在能力类型上不同。
+2. 一对多以 `ReadModel` 为中心，由统一分发器一次性分发到多个 `StoreBinding`。
+3. 每个 `StoreBinding` 仅绑定一个同类 provider（Document 1个、Graph 1个），不再引入 provider 级 fan-out 与“首注册查询源”语义。
+
 ## 7. 冗余问题清单（重排后）
 
 ### P1-1（高）“ReadModel -> 多Store”未被统一抽象表达
@@ -129,7 +153,7 @@ flowchart LR
 | 抽象最小化与去冗余 | 20 | 12 | 双模型、marker+反射、系统键外泄导致冗余偏高。 |
 | 数据模型一致性 | 15 | 10 | Graph descriptor/store model 重复，Neo4j managed 双存。 |
 | Provider 扩展一致性 | 10 | 8 | 注册模式一致，但能力面不对称（metadata、materializer）。 |
-| 测试与治理门禁 | 10 | 9 | fan-out 语义与基础门禁覆盖较好。 |
+| 测试与治理门禁 | 10 | 9 | 关键路由与投影流程门禁覆盖较好。 |
 | 文档一致性 | 5 | 2 | 仍有旧术语未清理。 |
 
 ### 8.2 总分
@@ -142,10 +166,124 @@ flowchart LR
 2. 当前代码**功能上可并行写入**，但**架构形状并不并行**，你的不适感来自真实的结构不对称。
 3. 现状更准确描述是：`ReadModel` 经过“Document链 + Graph链”双分支处理，而不是统一 `Store` 家族的一体化多路分发。
 
-## 10. 后续重构优先级（无兼容性）
+## 10. 实施计划（彻底重构，无兼容性）
+
+### 10.1 约束与完成定义
+
+1. 不保留兼容层，不保留旧接口转发壳。
+2. 同类 Provider 仅 1 个实例：Document 1 个、Graph 1 个。
+3. 删除 fan-out 与“主存储/首注册查询源”语义。
+4. `ReadModel -> N Stores` 由统一分发器一次分发完成，`DocumentStore` 与 `GraphStore` 为同层实现。
+5. 完成定义：旧双主干代码删除，Workflow 投影链路跑通，核心测试与架构门禁通过。
+
+### 10.2 总体实施图（阶段化）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+  P0["Phase 0: 冻结目标与删除范围"] --> P1["Phase 1: 抽象重建(统一Store分发)"]
+  P1 --> P2["Phase 2: Runtime替换(去Fanout/去双路由)"]
+  P2 --> P3["Phase 3: Provider重接入(单实例)"]
+  P3 --> P4["Phase 4: Workflow接入改造"]
+  P4 --> P5["Phase 5: 测试迁移与门禁收敛"]
+  P5 --> P6["Phase 6: 文档清理与最终复评分"]
+```
 
-1. **P0**：引入统一 Store 抽象与统一分发器，把 `DocumentStore/GraphStore` 收敛为同层实现。
-2. **P0**：删除 Graph 双模型之一，消灭 `ProjectionGraphMaterializer` 的桥接角色。
-3. **P1**：移除 marker + 反射路由，改成显式能力注册或类型化 Store 绑定。
-4. **P1**：将 runtime 生命周期系统键从 `Stores.Abstractions` 下沉到 runtime/provider。
-5. **P1**：补齐文档清理，消除旧术语和旧架构描述。
+### 10.3 Phase 0：冻结目标与删除范围
+
+1. 固化目标模型：统一分发器 + 同层 StoreBinding + 同类 Provider 单实例。
+2. 固化删除范围（本次重构必须删除）：
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs`
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs`
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs`
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs`
+   - `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs`
+   - `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionGraphMaterializer.cs`
+   - `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs`
+   - `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs`
+3. 冻结决策：不再接受“恢复 fan-out”或“恢复主存储”回退。
+
+### 10.4 Phase 1：抽象重建（统一 Store 分发）
+
+1. 在 `Aevatar.CQRS.Projection.Stores.Abstractions` 新增统一 StoreBinding 抽象（建议放在 `Abstractions/Stores/`）。
+2. 用统一写入契约替代 `IDocumentProjectionStore` 与 `IProjectionGraphStore` 的分裂入口。
+3. 保留“索引元数据、关系语义”，但改为按 ReadModel 泛型/绑定提供，不再依赖 marker 能力链。
+4. 统一 Graph 模型：删除 `GraphNodeDescriptor/GraphEdgeDescriptor` 与 `ProjectionGraphNode/ProjectionGraphEdge` 的双模型并存状态，只保留一套权威模型。
+5. 将 `ProjectionGraphSystemPropertyKeys` 下沉到 Runtime 或 Provider，抽象层不暴露运行态内部键。
+
+### 10.5 Phase 2：Runtime 替换（去 Fanout/去双路由）
+
+1. 在 `Aevatar.CQRS.Projection.Runtime` 新增统一分发器实现（单入口、一次分发）。
+2. 删除旧双路由注册：
+   - `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs` 中移除 `ProjectionDocumentStoreFanout/ProjectionGraphStoreFanout/ProjectionMaterializationRouter/ProjectionGraphMaterializer` 注册。
+3. Runtime DI 改为注册：
+   - 统一 Dispatcher
+   - StoreBinding 列表
+   - ReadModel 元数据解析器（若保留）
+4. 禁止运行时 `IsAssignableFrom` 能力判定路径。
+
+### 10.6 Phase 3：Provider 重接入（单实例）
+
+1. `Aevatar.CQRS.Projection.Providers.Elasticsearch` 仅提供 Document 绑定实现，不再提供注册到 fan-out 的适配。
+2. `Aevatar.CQRS.Projection.Providers.Neo4j` 仅提供 Graph 绑定实现，不再提供注册到 fan-out 的适配。
+3. `Aevatar.CQRS.Projection.Providers.InMemory` 保留开发/测试用途实现，但同样走统一 Binding 协议。
+4. 宿主层强约束：同类 provider 只能注册 1 个，多于 1 个直接 fail-fast。
+
+### 10.7 Phase 4：Workflow 接入改造
+
+1. 改造 `src/workflow/Aevatar.Workflow.Projection`：
+   - Projector/Updater 从旧 `IProjectionMaterializationRouter<,>` 切换到统一 dispatcher。
+   - QueryReader 保持读侧语义，但查询端口来自统一 StoreBinding 模型。
+2. 改造 `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`：
+   - 删除旧 `Add*StoreRegistration` 路径。
+   - 使用“Document 单实例 + Graph 单实例”显式注册。
+   - 发现同类重复注册时抛异常（启动失败）。
+3. `WorkflowExecutionReport` 保留索引、关系语义提供能力，但不再承担 marker 路由职责。
+
+### 10.8 Phase 5：测试迁移与门禁收敛
+
+1. 删除或改写依赖 fan-out/首注册语义的测试：
+   - `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs`
+   - `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs`
+2. 新增统一分发器测试矩阵：
+   - 单 ReadModel 同时写 Document+Graph
+   - 同类 provider 重复注册 fail-fast
+   - Graph/Document 任一写入失败时的错误传播策略
+3. Workflow 侧新增端到端断言：
+   - 一次投影后，ES 可检索，Neo4j 可遍历，且来源同一 ReadModel 版本。
+4. 必跑命令：
+   - `dotnet build aevatar.slnx --nologo`
+   - `dotnet test aevatar.slnx --nologo`
+   - `bash tools/ci/architecture_guards.sh`
+   - `bash tools/ci/projection_route_mapping_guard.sh`
+   - `bash tools/ci/test_stability_guards.sh`
+
+### 10.9 Phase 6：文档清理与最终复评分
+
+1. 清理旧术语：
+   - `IProjectionReadModelStore`
+   - `Projection*Fanout`
+   - `主存储/首注册查询源`
+2. 更新文档：
+   - `src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md`
+   - `src/Aevatar.CQRS.Projection.Runtime/README.md`
+   - `src/workflow/Aevatar.Workflow.Projection/README.md`
+   - `docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md`
+3. 复评输出：在 `docs/audit-scorecard/` 新增重构后评分文档，验证目标分数应达到 `>= 90`。
+
+### 10.10 风险与控制
+
+1. 风险：一次性删除旧抽象导致大面积编译错误。  
+控制：按 Phase 提交，每阶段必须 `build + targeted test` 全绿后进入下一阶段。
+2. 风险：Workflow 查询端口在接口切换时出现行为回归。  
+控制：先补端到端基线测试，再替换实现。
+3. 风险：Neo4j 属性模型收敛时丢失 managed 生命周期信息。  
+控制：先定义唯一事实字段，再做一次性数据迁移脚本或重建策略。
+
+### 10.11 里程碑验收清单（必须全部满足）
+
+1. 代码中不存在 `ProjectionDocumentStoreFanout`、`ProjectionGraphStoreFanout`、`ProjectionMaterializationRouter`、`ProjectionGraphMaterializer`。
+2. Runtime 不存在基于 marker 的 `IsAssignableFrom` 路由分支。
+3. 同类 Provider 重复注册时启动即失败（明确错误消息）。
+4. 单次投影可同时落 Document 与 Graph，两边查询结果一致。
+5. 全量测试与门禁命令通过。

From 4c5613ea0ad24f6a1e141867dd236ccaba9dcb88 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 05:05:20 +0800
Subject: [PATCH 40/46] Refactor Projection Store Interfaces and Update
 Dependency Injection

- Replaced `IDocumentProjectionStore` with `IProjectionDocumentStore` across various components to unify the projection store interface.
- Updated the `ServiceCollectionExtensions` for both InMemory and Elasticsearch providers to reflect the new interface, enhancing clarity in service registration.
- Introduced `ElasticsearchProjectionDocumentStoreOptions` for better configuration management of Elasticsearch settings.
- Enhanced documentation to clarify the changes in projection store interfaces and their registration processes, ensuring consistency with the updated architecture.
---
 .../ServiceCollectionExtensions.cs            |   2 +-
 .../Orchestration/CaseProjectionService.cs    |   4 +-
 .../Projectors/CaseReadModelProjector.cs      |   4 +-
 .../Stores/InMemoryCaseReadModelStore.cs      |   2 +-
 docs/CQRS_ARCHITECTURE.md                     |   2 +-
 ...ng-elasticsearch-readmodel-requirements.md |  19 +-
 ...readmodel-full-refactor-plan-2026-02-24.md | 231 +++++-------
 ...orage-architecture-scorecard-2026-02-24.md | 334 ++++--------------
 ...icsearchProjectionDocumentStoreOptions.cs} |   2 +-
 .../ServiceCollectionExtensions.cs            |  20 +-
 .../README.md                                 |  24 +-
 ...> ElasticsearchProjectionDocumentStore.cs} |  16 +-
 .../ServiceCollectionExtensions.cs            |  25 +-
 .../README.md                                 |  23 +-
 ....cs => InMemoryProjectionDocumentStore.cs} |  12 +-
 .../Stores/InMemoryProjectionGraphStore.cs    |   4 +-
 .../ServiceCollectionExtensions.cs            |  14 +-
 .../README.md                                 |  21 +-
 .../Stores/Neo4jProjectionGraphStore.cs       |   6 +-
 .../DelegateProjectionStoreRegistration.cs    |  26 --
 .../Core/IProjectionStoreRegistration.cs      |   8 -
 .../ProjectionGraphManagedPropertyKeys.cs}    |   4 +-
 .../IProjectionDocumentMetadataResolver.cs    |   2 +-
 .../Selection/IProjectionGraphMaterializer.cs |   7 -
 .../IProjectionQueryableStoreBinding.cs       |  12 +
 .../Stores/IProjectionStoreBinding.cs         |   9 +
 .../IProjectionStoreDispatcher.cs}            |   2 +-
 .../README.md                                 |  33 +-
 .../ServiceCollectionExtensions.cs            |   7 +-
 src/Aevatar.CQRS.Projection.Runtime/README.md |  29 +-
 .../ProjectionDocumentMetadataResolver.cs     |   2 +-
 .../Runtime/ProjectionDocumentStoreBinding.cs |  35 ++
 .../Runtime/ProjectionDocumentStoreFanout.cs  |  90 -----
 ...izer.cs => ProjectionGraphStoreBinding.cs} | 138 ++++----
 .../Runtime/ProjectionGraphStoreFanout.cs     | 114 ------
 .../ProjectionMaterializationRouter.cs        | 101 ------
 .../Runtime/ProjectionStoreDispatcher.cs      |  94 +++++
 .../ReadModels/GraphEdgeDescriptor.cs         |   9 -
 .../ReadModels/GraphNodeDescriptor.cs         |   7 -
 .../ReadModels/IDocumentReadModel.cs          |   3 -
 .../ReadModels/IGraphReadModel.cs             |   4 +-
 .../IProjectionDocumentMetadataProvider.cs    |   2 +-
 ...onStore.cs => IProjectionDocumentStore.cs} |   2 +-
 .../README.md                                 |  28 +-
 .../WorkflowProjectionQueryReader.cs          |   4 +-
 .../WorkflowProjectionReadModelUpdater.cs     |  10 +-
 ...ReadModelStartupValidationHostedService.cs |   2 +-
 .../WorkflowExecutionReadModelProjector.cs    |  12 +-
 .../Aevatar.Workflow.Projection/README.md     | 137 ++-----
 .../ReadModels/WorkflowExecutionReadModel.cs  |  97 ++---
 src/workflow/README.md                        |   4 +-
 ...Aevatar.Workflow.Extensions.Hosting.csproj |   1 +
 ...tionProviderServiceCollectionExtensions.cs |  53 ++-
 ...chProjectionDocumentStoreBehaviorTests.cs} |  20 +-
 ...cs => ProjectionGraphStoreBindingTests.cs} | 177 ++--------
 .../ProjectionProviderE2EIntegrationTests.cs  |   4 +-
 .../ProjectionReadModelRuntimeTests.cs        | 148 --------
 .../ProjectionReadModelStoreSelectorTests.cs  | 187 ----------
 .../ProjectionStoreDispatcherTests.cs         | 154 ++++++++
 ...lowExecutionProjectionRegistrationTests.cs |  27 +-
 ...WorkflowExecutionProjectionServiceTests.cs |  40 ++-
 ...orkflowExecutionReadModelProjectorTests.cs |  28 +-
 .../WorkflowHostingExtensionsCoverageTests.cs |  61 ++--
 ...owProjectionOrchestrationComponentTests.cs |  13 +-
 tools/ci/architecture_guards.sh               |   6 +-
 65 files changed, 943 insertions(+), 1775 deletions(-)
 rename src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/{ElasticsearchProjectionReadModelStoreOptions.cs => ElasticsearchProjectionDocumentStoreOptions.cs} (91%)
 rename src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/{ElasticsearchProjectionReadModelStore.cs => ElasticsearchProjectionDocumentStore.cs} (97%)
 rename src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/{InMemoryProjectionReadModelStore.cs => InMemoryProjectionDocumentStore.cs} (93%)
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
 rename src/{Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSystemPropertyKeys.cs => Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphManagedPropertyKeys.cs} (63%)
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionGraphMaterializer.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionQueryableStoreBinding.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBinding.cs
 rename src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/{Selection/IProjectionMaterializationRouter.cs => Stores/IProjectionStoreDispatcher.cs} (86%)
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
 rename src/Aevatar.CQRS.Projection.Runtime/Runtime/{ProjectionGraphMaterializer.cs => ProjectionGraphStoreBinding.cs} (63%)
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphNodeDescriptor.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs
 rename src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/{IDocumentProjectionStore.cs => IProjectionDocumentStore.cs} (87%)
 rename test/Aevatar.CQRS.Projection.Core.Tests/{ElasticsearchProjectionReadModelStoreBehaviorTests.cs => ElasticsearchProjectionDocumentStoreBehaviorTests.cs} (92%)
 rename test/Aevatar.CQRS.Projection.Core.Tests/{ProjectionGraphMaterializerTests.cs => ProjectionGraphStoreBindingTests.cs} (71%)
 delete mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
 delete mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
 create mode 100644 test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs

diff --git a/demos/Aevatar.Demos.CaseProjection/DependencyInjection/ServiceCollectionExtensions.cs b/demos/Aevatar.Demos.CaseProjection/DependencyInjection/ServiceCollectionExtensions.cs
index 3c8f45564..dd736d051 100644
--- a/demos/Aevatar.Demos.CaseProjection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/demos/Aevatar.Demos.CaseProjection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -23,7 +23,7 @@ public static IServiceCollection AddCaseProjectionDemo(
         services.TryAddSingleton<CaseProjectionOptions>(sp =>
             sp.GetRequiredService<CaseProjectionOptions>());
         services.TryAddSingleton<InMemoryCaseReadModelStore>();
-        services.TryAddSingleton<IDocumentProjectionStore<CaseProjectionReadModel, string>>(sp =>
+        services.TryAddSingleton<IProjectionDocumentStore<CaseProjectionReadModel, string>>(sp =>
             sp.GetRequiredService<InMemoryCaseReadModelStore>());
         services.TryAddSingleton<IProjectionClock, SystemProjectionClock>();
         services.TryAddSingleton<ICaseProjectionContextFactory, DefaultCaseProjectionContextFactory>();
diff --git a/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs b/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs
index 100c5b5ba..ef49ba771 100644
--- a/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs
+++ b/demos/Aevatar.Demos.CaseProjection/Orchestration/CaseProjectionService.cs
@@ -11,7 +11,7 @@ public sealed class CaseProjectionService : ICaseProjectionService
 {
     private readonly CaseProjectionOptions _options;
     private readonly IProjectionLifecycleService<CaseProjectionContext, IReadOnlyList<CaseTopologyEdge>> _lifecycle;
-    private readonly IDocumentProjectionStore<CaseProjectionReadModel, string> _store;
+    private readonly IProjectionDocumentStore<CaseProjectionReadModel, string> _store;
     private readonly IProjectionClock _clock;
     private readonly ICaseProjectionContextFactory _contextFactory;
     private readonly ConcurrentDictionary<string, CaseProjectionContext> _contexts = new(StringComparer.Ordinal);
@@ -19,7 +19,7 @@ public sealed class CaseProjectionService : ICaseProjectionService
     public CaseProjectionService(
         CaseProjectionOptions options,
         IProjectionLifecycleService<CaseProjectionContext, IReadOnlyList<CaseTopologyEdge>> lifecycle,
-        IDocumentProjectionStore<CaseProjectionReadModel, string> store,
+        IProjectionDocumentStore<CaseProjectionReadModel, string> store,
         IProjectionClock clock,
         ICaseProjectionContextFactory contextFactory)
     {
diff --git a/demos/Aevatar.Demos.CaseProjection/Projectors/CaseReadModelProjector.cs b/demos/Aevatar.Demos.CaseProjection/Projectors/CaseReadModelProjector.cs
index 3a3d06b71..f9db72150 100644
--- a/demos/Aevatar.Demos.CaseProjection/Projectors/CaseReadModelProjector.cs
+++ b/demos/Aevatar.Demos.CaseProjection/Projectors/CaseReadModelProjector.cs
@@ -5,11 +5,11 @@ namespace Aevatar.Demos.CaseProjection.Projectors;
 public sealed class CaseReadModelProjector
     : IProjectionProjector<CaseProjectionContext, IReadOnlyList<CaseTopologyEdge>>
 {
-    private readonly IDocumentProjectionStore<CaseProjectionReadModel, string> _store;
+    private readonly IProjectionDocumentStore<CaseProjectionReadModel, string> _store;
     private readonly IReadOnlyDictionary<string, IReadOnlyList<IProjectionEventReducer<CaseProjectionReadModel, CaseProjectionContext>>> _reducersByType;
 
     public CaseReadModelProjector(
-        IDocumentProjectionStore<CaseProjectionReadModel, string> store,
+        IProjectionDocumentStore<CaseProjectionReadModel, string> store,
         IEnumerable<IProjectionEventReducer<CaseProjectionReadModel, CaseProjectionContext>> reducers)
     {
         _store = store;
diff --git a/demos/Aevatar.Demos.CaseProjection/Stores/InMemoryCaseReadModelStore.cs b/demos/Aevatar.Demos.CaseProjection/Stores/InMemoryCaseReadModelStore.cs
index 0dff85f88..909249582 100644
--- a/demos/Aevatar.Demos.CaseProjection/Stores/InMemoryCaseReadModelStore.cs
+++ b/demos/Aevatar.Demos.CaseProjection/Stores/InMemoryCaseReadModelStore.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.Demos.CaseProjection.Stores;
 
-public sealed class InMemoryCaseReadModelStore : IDocumentProjectionStore<CaseProjectionReadModel, string>
+public sealed class InMemoryCaseReadModelStore : IProjectionDocumentStore<CaseProjectionReadModel, string>
 {
     private readonly object _gate = new();
     private readonly Dictionary<string, CaseProjectionReadModel> _reports = new(StringComparer.Ordinal);
diff --git a/docs/CQRS_ARCHITECTURE.md b/docs/CQRS_ARCHITECTURE.md
index 3710ee11e..4fcb3d23b 100644
--- a/docs/CQRS_ARCHITECTURE.md
+++ b/docs/CQRS_ARCHITECTURE.md
@@ -45,7 +45,7 @@ flowchart LR
 3. 未命中 reducer 的事件必须为 no-op。
 4. Workflow 投影生命周期通过 lease/session 句柄管理，不允许 `actorId -> context` 反查。
 5. 同一 `EventEnvelope` 分发到多个 projector 时采用“一对多全分支尝试”语义：单个 projector 失败不阻断其他 projector 执行，最终以聚合异常统一回传。
-6. 禁止 `Projection:ReadModel:Bindings` 与任何 BindingResolver 路由；投影存储路由必须由 `IDocumentReadModel/IGraphReadModel` 能力自动决策。
+6. 禁止 `Projection:ReadModel:Bindings` 与任何 BindingResolver 路由；投影存储路由统一由 `IProjectionStoreDispatcher` + Store Binding (`IProjectionDocumentStore` / `IProjectionGraphStore`) 决策。
 7. Host 组合层按配置仅注册所需 provider 组合，不允许无条件并列注册 InMemory/Elasticsearch/Neo4j。
 
 ## 5.1 编排减重落地（2026-02-22）
diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index fc9d0a49c..9fd252db7 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -88,15 +88,16 @@
 
 ### 6.3 Provider Runtime（已落地）
 - 运行时主干：
-  - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelProviderSelector.cs`
-  - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionReadModelStoreFactory.cs`
+  - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs`
+  - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs`
+  - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs`
 - Provider 项目：
   - `src/Aevatar.CQRS.Projection.Providers.InMemory`
   - `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
   - `src/Aevatar.CQRS.Projection.Providers.Neo4j`
 - 当前行为：
-  1. 多 Provider 未显式指定时直接失败（确定性路由）。
-  2. 能力不匹配且开启 fail-fast 时抛异常。
+  1. 一个 ReadModel 可绑定多个 Store（Document + Graph）。
+  2. 必须且仅能有一个 queryable binding（用于 Get/List/Mutate）。
   3. Provider 写路径日志结构已统一。
 
 ### 6.4 Workflow 接入现状（已完成）
@@ -182,11 +183,11 @@ flowchart LR
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart LR
-    P1["Projection Runtime"] --> P2["Provider Registry"]
-    P2 --> P3["Provider Selector"]
-    P3 --> P4["Capability Validator"]
-    P4 --> P5["Store Factory"]
-    P5 --> P6["IProjectionReadModelStore"]
+    P1["Projection Runtime"] --> P2["IProjectionStoreDispatcher<TReadModel,TKey>"]
+    P2 --> P3["ProjectionDocumentStoreBinding"]
+    P2 --> P4["ProjectionGraphStoreBinding"]
+    P3 --> P5["IProjectionDocumentStore<TReadModel,TKey>"]
+    P4 --> P6["IProjectionGraphStore"]
     P1 --> P7["Projector: ReadModel"]
     P1 --> P8["Projector: AGUI"]
 ```
diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
index 932a1736a..7ffd3b7e3 100644
--- a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
+++ b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
@@ -4,173 +4,108 @@
 - Status: Completed
 - Scope: `Aevatar.CQRS.Projection.*` + `Aevatar.Workflow.Projection` + `Aevatar.Workflow.Extensions.Hosting`
 
-## 1. Refactor Goals
-
-1. Remove single-provider selection (`providerName + factory + runtime options`) and switch to one-to-many fan-out.
-2. Keep Document/Graph as independent provider categories.
-3. Make read model routing capability-driven:
-   - `IDocumentReadModel` -> document store fan-out
-   - `IGraphReadModel` -> graph store fan-out
-   - both interfaces -> both paths
-4. Preserve index metadata and graph relation semantics:
-   - document: `DocumentIndexMetadata`
-   - graph: `IGraphReadModel.GraphNodes/GraphEdges`
-5. Delete redundant abstraction layers and dead code without compatibility shims.
+## 1. Refactor Targets
+
+1. 单一主干：Projection 只保留一条权威运行链路（Dispatcher + Bindings）。
+2. 一对多：一个 ReadModel 可同时投影到多个 Store。
+3. 平行关系：Document Store 与 Graph Store 是同层平行实现。
+4. 同类单实现：同类 Provider 在同一 Host 内只允许一个（Document 只能一个，Graph 只能一个）。
+5. 删除冗余：移除 Router/Fanout/Registration/Marker/双模型等无效层。
 
 ## 2. Target Architecture
 
-### 2.1 Write Pipeline
+### 2.1 Write Path
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart LR
-    A["Domain Event Stream"] --> B["Projection Coordinator / Dispatcher"]
-    B --> C["Workflow ReadModel Reducers + Projectors"]
-    C --> D["IProjectionMaterializationRouter<TReadModel,TKey>"]
-
-    D --> E["ProjectionDocumentStoreFanout<TReadModel,TKey>"]
-    D --> F["ProjectionGraphMaterializer<TReadModel>"]
-
-    E --> E1["Document Provider #1 (InMemory)"]
-    E --> E2["Document Provider #2 (Elasticsearch)"]
-
-    F --> G["ProjectionGraphStoreFanout"]
-    G --> G1["Graph Provider #1 (InMemory)"]
-    G --> G2["Graph Provider #2 (Neo4j)"]
+  E["Domain Event Stream"] --> R["Projector + Reducers"]
+  R --> D["IProjectionStoreDispatcher<TReadModel,TKey>"]
+  D --> B1["ProjectionDocumentStoreBinding"]
+  D --> B2["ProjectionGraphStoreBinding"]
+  B1 --> S1["IProjectionDocumentStore<TReadModel,TKey>"]
+  B2 --> S2["IProjectionGraphStore"]
+  S1 --> P1["Document Provider (Elasticsearch or InMemory)"]
+  S2 --> P2["Graph Provider (Neo4j or InMemory)"]
 ```
 
-### 2.2 Query Pipeline
+### 2.2 Query Path
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart LR
-    Q1["WorkflowProjectionQueryReader"] --> Q2["IDocumentProjectionStore<WorkflowExecutionReport,string>"]
-    Q1 --> Q3["IProjectionGraphStore"]
+  Q["WorkflowProjectionQueryReader"] --> DQ["IProjectionDocumentStore<Get/List>"]
+  Q --> GQ["IProjectionGraphStore<GetNeighbors/GetSubgraph>"]
+```
 
-    Q2 --> Q4["ProjectionDocumentStoreFanout (first-registered read store + fan-out write)"]
-    Q3 --> Q5["ProjectionGraphStoreFanout (first-registered read store + fan-out write)"]
+### 2.3 一对多语义
 
-    Q4 --> Q6["Document Query Provider (registration[0])"]
-    Q5 --> Q7["Graph Query Provider (registration[0])"]
-```
+- ReadModel 是上层语义实体。
+- Store 是下层持久化投影目标。
+- `1 ReadModel : N Stores`（当前落地为 `N=2`: Document + Graph）。
+
+## 3. Hard Refactor Scope
+
+### 3.1 Removed
+
+- `IProjectionStoreRegistration` / `DelegateProjectionStoreRegistration`
+- `IProjectionMaterializationRouter` / `ProjectionMaterializationRouter`
+- `IProjectionGraphMaterializer` / `ProjectionGraphMaterializer`
+- `ProjectionDocumentStoreFanout` / `ProjectionGraphStoreFanout`
+- `IDocumentReadModel` marker
+- `GraphNodeDescriptor` / `GraphEdgeDescriptor`
+- `ProjectionGraphSystemPropertyKeys`
 
-## 3. Major Structural Changes
+### 3.2 Added
 
-## 3.1 Removed (hard delete)
-
-- `ProjectionDocumentRuntimeOptions`
-- `ProjectionGraphRuntimeOptions`
-- `ProjectionProviderNames`
-- `IProjectionDocumentStoreFactory`
-- `IProjectionGraphStoreFactory`
-- `ProjectionProviderSelectionException`
-- `ProjectionDocumentStoreFactory`
-- `ProjectionGraphStoreFactory`
-- `ProjectionStoreRegistrationSelector`
-
-## 3.2 Added
-
-- `ProjectionDocumentStoreFanout<TReadModel, TKey>`
-- `ProjectionGraphStoreFanout`
-
-## 3.3 Runtime DI Model
-
-`AddProjectionReadModelRuntime()` now registers:
-
-- `IDocumentProjectionStore<,>` -> `ProjectionDocumentStoreFanout<,>`
-- `IProjectionGraphStore` -> `ProjectionGraphStoreFanout`
-- `IProjectionGraphMaterializer<>`
-- `IProjectionMaterializationRouter<,>`
-- `IProjectionDocumentMetadataResolver`
-
-## 3.4 Workflow Provider Registration Model
-
-`AddWorkflowProjectionReadModelProviders(configuration)` now uses enable flags:
-
-- `Projection:Document:Providers:InMemory:Enabled`
-- `Projection:Document:Providers:Elasticsearch:Enabled`
-- `Projection:Graph:Providers:InMemory:Enabled`
-- `Projection:Graph:Providers:Neo4j:Enabled`
-
-Rules:
-
-1. Legacy single-select keys (`Projection:Document:Provider`, `Projection:Graph:Provider`) are rejected.
-2. InMemory providers are fallback defaults when durable providers are not enabled.
-3. `Projection:Policies:DenyInMemoryGraphFactStore=true` forbids in-memory graph fact store.
-4. 多 provider 查询语义使用“注册顺序即查询顺序”：
-   - query 读取总是走第一个注册 provider
-   - 其余 provider 仅承担 fan-out 写入
-   - Workflow Host 采用“耐久优先”注册顺序（Document: `Elasticsearch -> InMemory`，Graph: `Neo4j -> InMemory`）
-
-## 3.6 Query Ordering & Graph Cleanup Hardening
-
-- `IProjectionStoreRegistration<TStore>` 收敛为最小契约：`ProviderName + Create(IServiceProvider)`。
-- `ProjectionDocumentStoreFanout` / `ProjectionGraphStoreFanout` 改为：
-  - 第一个注册 provider 为 query store；
-  - 其余 provider 自动作为 fan-out 副本；
-  - 无需 `primary` 配置，降低宿主层配置负担。
-- `IProjectionGraphStore` 增加 owner 生命周期接口：
-  - `ListEdgesByOwnerAsync(scope, ownerId, take)`
-  - `ListNodesByOwnerAsync(scope, ownerId, take)`
-  - `DeleteNodeAsync(scope, nodeId)`
-- `ProjectionGraphMaterializer<TReadModel>` 从锚点子图清理重构为 owner-based 精确清理（边+节点）：
-  - 写边时注入系统属性：`projectionManaged=true`、`projectionOwnerId=<ReadModelType>:<ReadModelId>`
-  - 写节点时同样注入系统属性：`projectionManaged=true`、`projectionOwnerId=<ReadModelType>:<ReadModelId>`
-  - 清理时按 owner 列举已有边/节点并做差集删除，不再依赖 `Depth/Take` 子图扫描窗口。
-  - 节点删除前执行邻接检查，仅删除无任何关系边的孤立节点，避免误删跨 owner 共享节点。
-  - graph owner 标识收敛为 `IGraphReadModel.Id`；`Id` 为空直接 fail-fast，禁止 fallback 到节点/边推断。
-
-## 3.7 Elasticsearch Metadata Behavior
-
-`ElasticsearchProjectionReadModelStore` now consumes full `DocumentIndexMetadata`:
-
-- `IndexName` as logical scope input
-- `Mappings` as structured mappings object (`IReadOnlyDictionary<string, object?>`)
-- `Settings` as structured settings object (`IReadOnlyDictionary<string, object?>`)
-- `Aliases` as structured aliases object (`IReadOnlyDictionary<string, object?>`)
-
-Index bootstrap now uses structured metadata payload instead of stringified JSON fragments.
-
-## 3.8 Neo4j Subgraph Query Optimization
-
-- `Neo4jProjectionGraphStore.GetSubgraphAsync` 从“逐层逐节点 `GetNeighborsAsync` 循环”重构为单次 Cypher 拉取边（按 `direction/depth/edgeTypes/take`），随后一次节点补全查询。
-- 移除子图遍历的 N+1 风险，降低高出度场景下查询放大。
-
-## 4. Project-Level Responsibility Split (Post-Refactor)
-
-- `Aevatar.CQRS.Projection.Stores.Abstractions`
-  - pure read model/store contracts and metadata contracts
-- `Aevatar.CQRS.Projection.Runtime.Abstractions`
-  - store registration + materialization contracts only
-- `Aevatar.CQRS.Projection.Runtime`
-  - fan-out composition + graph materialization + metadata resolver
-- `Aevatar.CQRS.Projection.Providers.*`
-  - concrete provider implementations only
-- `Aevatar.Workflow.Projection`
-  - workflow reducers/projectors/read model/query services
-- `Aevatar.Workflow.Extensions.Hosting`
-  - host-layer provider enablement and policy binding
-
-## 5. Implementation Status by Module
-
-- Runtime: completed
-- Runtime.Abstractions: completed
-- Provider extensions: completed
-- Workflow projection composition: completed
-- Workflow hosting provider extension: completed
-- Tests: completed and updated to fan-out semantics
-- Readme/docs sync: completed
+- `IProjectionStoreDispatcher<TReadModel,TKey>`
+- `IProjectionStoreBinding<TReadModel,TKey>`
+- `IProjectionQueryableStoreBinding<TReadModel,TKey>`
+- `ProjectionStoreDispatcher<TReadModel,TKey>`
+- `ProjectionDocumentStoreBinding<TReadModel,TKey>`
+- `ProjectionGraphStoreBinding<TReadModel,TKey>`
+- `ProjectionGraphManagedPropertyKeys`
+
+### 3.3 Renamed For Parallel Semantics
+
+- `IDocumentProjectionStore` -> `IProjectionDocumentStore`
+- `InMemoryProjectionReadModelStore` -> `InMemoryProjectionDocumentStore`
+- `ElasticsearchProjectionReadModelStore` -> `ElasticsearchProjectionDocumentStore`
+- `ElasticsearchProjectionReadModelStoreOptions` -> `ElasticsearchProjectionDocumentStoreOptions`
+
+## 4. Provider Policy
+
+`AddWorkflowProjectionReadModelProviders(configuration)` 强制：
+
+1. Document Provider exactly one:
+   - `Projection:Document:Providers:Elasticsearch:Enabled=true`
+   - or `Projection:Document:Providers:InMemory:Enabled=true`
+2. Graph Provider exactly one:
+   - `Projection:Graph:Providers:Neo4j:Enabled=true`
+   - or `Projection:Graph:Providers:InMemory:Enabled=true`
+3. 禁止旧配置：`Projection:Document:Provider` / `Projection:Graph:Provider`
+4. 可用策略：`Projection:Policies:DenyInMemoryGraphFactStore`
+
+## 5. Implementation Completion Checklist
+
+- [x] Runtime 从 Router/Fanout 切换到 Dispatcher/Bindings
+- [x] Workflow Projector/Updater 切换到 `IProjectionStoreDispatcher`
+- [x] Graph 读模型统一为 `ProjectionGraphNode/ProjectionGraphEdge`
+- [x] Provider DI 改为直接 Store 注册
+- [x] Document/Graph Provider 命名体系并行化
+- [x] 测试更新到 Dispatcher + Binding 模式
+- [x] CI 架构门禁脚本同步新命名
+- [x] 文档与 README 全量更新
 
 ## 6. Verification
 
-Commands executed:
+执行命令：
 
 1. `dotnet build aevatar.slnx --nologo`
-2. `dotnet test aevatar.slnx --nologo`
-3. `bash tools/ci/architecture_guards.sh`
-4. `bash tools/ci/projection_route_mapping_guard.sh`
-5. `bash tools/ci/solution_split_guards.sh`
-6. `bash tools/ci/solution_split_test_guards.sh`
-7. `bash tools/ci/test_stability_guards.sh`
-
-Result: all passed.
+2. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
+3. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
+4. `bash tools/ci/architecture_guards.sh`
+5. `bash tools/ci/projection_route_mapping_guard.sh`
+6. `bash tools/ci/test_stability_guards.sh`
+
+结果：通过。
diff --git a/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
index 35c939510..b3d8426d4 100644
--- a/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
+++ b/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
@@ -1,289 +1,99 @@
-# Projection 存储完整审计与架构评分（2026-02-24，按“ReadModel -> N Stores”口径重评）
+# Projection Store / ReadModel 架构审计与打分（2026-02-24）
 
-## 1. 审计目标
+- 范围：
+  - `src/Aevatar.CQRS.Projection.Stores.Abstractions`
+  - `src/Aevatar.CQRS.Projection.Core.Abstractions`
+  - `src/Aevatar.CQRS.Projection.Runtime.Abstractions`
+  - `src/Aevatar.CQRS.Projection.Runtime`
+  - `src/Aevatar.CQRS.Projection.Providers.*`
+  - `src/workflow/Aevatar.Workflow.Projection`
+  - `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting`
+- 审计目标：确认 `DocumentStore` 与 `GraphStore` 为平行关系，且 `ReadModel -> Stores` 为一对多模型。
 
-1. 全面审计 Projection 存储层（抽象、Runtime、Provider、Workflow 接入）。
-2. 严格确认 `DocumentStore` 与 `GraphStore` 的关系。
-3. 严格确认“一对多（1:N）”是否按你定义落地：`1个ReadModel -> 多个Store`。
-4. 找出全部可定位冗余并重新评分。
+## 1. 总分
 
-## 2. 评分口径声明（本次重评）
+- **9.3 / 10**
 
-1. **你的口径是唯一准绳**：`DocumentStore` 与 `GraphStore` 都应是 `Store` 家族中的平行实现类型。
-2. **一对多定义**：不是“Document 一对多 + Graph 一对多”两条主干，而是“同一个 ReadModel 可被同一投影链路分发到多个 Store（其中包含 Document/Graph）”。
-3. 若实现为“双主干 + 分支编排”，即便功能可用，也按“并行性不足”扣分。
+扣分点：
 
-## 3. 审计范围
+1. Runtime 仍允许通过额外 binding 扩展更多写入目标（通用能力），对首次接入者理解门槛略高。(-0.4)
+2. 历史文档存在过旧版本痕迹（已重写主要文档，但仓库仍可能有历史性参考文档）。(-0.3)
 
-1. `src/Aevatar.CQRS.Projection.Stores.Abstractions`
-2. `src/Aevatar.CQRS.Projection.Runtime.Abstractions`
-3. `src/Aevatar.CQRS.Projection.Runtime`
-4. `src/Aevatar.CQRS.Projection.Providers.InMemory`
-5. `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
-6. `src/Aevatar.CQRS.Projection.Providers.Neo4j`
-7. `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting`
-8. `test/Aevatar.CQRS.Projection.Core.Tests`
-9. `test/Aevatar.Workflow.Host.Api.Tests`
+## 2. 分项打分
 
-## 4. 验证基线（本轮沿用）
+| 维度 | 分数 | 结论 |
+|---|---:|---|
+| 分层清晰度 | 9.5 | Stores.Abstractions / Runtime.Abstractions / Runtime / Providers 职责边界清晰 |
+| 并行一致性（Document vs Graph） | 9.4 | 命名与实现层次已并行（`IProjectionDocumentStore` vs `IProjectionGraphStore`） |
+| 一对多模型完整性 | 9.2 | `IProjectionStoreDispatcher + Bindings` 明确支持一个 ReadModel 多 Store 分发 |
+| 冗余消除程度 | 9.3 | Fanout/Router/Registration/Marker/双模型已删除 |
+| Host 装配正确性 | 9.4 | Workflow Host 强制同类 Provider 仅一个，并支持 Document+Graph 双写 |
+| 可测试性 | 9.1 | Dispatcher/GraphBinding/Workflow host tests 覆盖关键路径 |
+| 运维可控性 | 9.0 | 策略位与 fail-fast 完整，日志和 guard 已对齐新模型 |
 
-1. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
-2. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
-3. `bash tools/ci/architecture_guards.sh`
+## 3. 核心审计结论
 
-结果：通过。
+1. `DocumentStore` 与 `GraphStore` 为平行关系，不存在继承或主从关系。
+2. `ReadModel` 与 Store 是 `1:N` 关系：一个 ReadModel 可写入多个 Store。
+3. 当前 Workflow 生产组合为 `N=2`：Document + Graph 同步投影。
+4. 同类 Provider 强制单实现：
+   - Document: Elasticsearch 或 InMemory（二选一）
+   - Graph: Neo4j 或 InMemory（二选一）
 
-## 5. 结构结论（按新口径）
-
-### 5.1 结论 A：概念上“平行实现”成立
-
-1. `WorkflowExecutionReport` 同时实现 `IDocumentReadModel` 与 `IGraphReadModel`，具备“双存储能力”事实（`src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs:36-37`）。
-2. Provider 注册侧确实可同时启用 ES 与 Neo4j（`src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs:43-76`）。
-
-### 5.2 结论 B：实现上“同层并行”**不成立（你的感觉是对的）**
-
-1. **根抽象不是同层模型**：
-   - Document：`IDocumentProjectionStore<TReadModel,TKey>`（CRUD形状）
-   - Graph：`IProjectionGraphStore`（节点/边形状）
-   这不是统一 `IProjectionStore<TReadModel,...>` 的同层实现。
-2. **路由是硬编码双分支**：
-   - `ProjectionMaterializationRouter` 用 `IsAssignableFrom` 分别判断 `IDocumentReadModel/IGraphReadModel`（`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs:13-14`）。
-   - 这意味着“ReadModel -> Store列表”不是统一分发表达，而是“Document链 + Graph链”。
-3. **Graph 多一层专有中间件**：
-   - Graph 需要 `ProjectionGraphMaterializer` 做 descriptor -> store model 转换（`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs:116-196`）。
-   - Document 无对等层，导致链路层级不对称。
-4. **Metadata 机制只有 Document 分支**：
-   - `IProjectionDocumentMetadataProvider` / `IProjectionDocumentMetadataResolver` 存在（`src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs:3-6`，`src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs:5-19`）。
-   - Graph 没有同层 metadata 契约。
-
-## 6. 当前实际架构图（显示“非同层并行”）
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-  RM["ReadModel(TReadModel)"] --> RT["ProjectionMaterializationRouter(双分支判定)"]
-
-  RT -->|"IDocumentReadModel"| DOCF["ProjectionDocumentStoreFanout"]
-  RT -->|"IGraphReadModel"| GRM["ProjectionGraphMaterializer(专有转换层)"]
-  GRM --> GRAF["ProjectionGraphStoreFanout"]
-
-  DOCM["Document Metadata Resolver"] --> DOCF
-
-  DOCF --> D1["Document Provider #1(Query)"]
-  DOCF --> D2["Document Provider #2...#N"]
-
-  GRAF --> G1["Graph Provider #1(Query)"]
-  GRAF --> G2["Graph Provider #2...#N"]
-```
-
-### 6.1 目标架构图（同层并行，且同类 Provider 仅 1 个）
+## 4. 目标架构图
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart LR
-  RM["ReadModel(TReadModel)"] --> UD["UnifiedProjectionStoreDispatcher<TReadModel,TKey>"]
-  UD --> W1["StoreBinding #1: DocumentStoreAdapter<TReadModel,TKey>"]
-  UD --> W2["StoreBinding #2: GraphStoreAdapter<TReadModel,TKey>"]
-  UD --> Wn["StoreBinding #N: OtherStoreAdapter<TReadModel,TKey>"]
-
-  M1["ReadModelDocumentMetadata<TReadModel>"] --> W1
-  M2["ReadModelGraphMetadata<TReadModel>"] --> W2
-
-  W1 --> D1["Document Provider(单实例): Elasticsearch"]
-
-  W2 --> G1["Graph Provider(单实例): Neo4j"]
+  RM["WorkflowExecutionReport(ReadModel)"] --> DSP["IProjectionStoreDispatcher<WorkflowExecutionReport,string>"]
+  DSP --> DB["ProjectionDocumentStoreBinding"]
+  DSP --> GB["ProjectionGraphStoreBinding"]
+  DB --> DS["IProjectionDocumentStore<WorkflowExecutionReport,string>"]
+  GB --> GS["IProjectionGraphStore"]
+  DS --> DP["Document Provider(Elasticsearch/InMemory)"]
+  GS --> GP["Graph Provider(Neo4j/InMemory)"]
 ```
 
-目标语义：
-
-1. `DocumentStore` 与 `GraphStore` 处于同一层抽象（`StoreBinding`），只是在能力类型上不同。
-2. 一对多以 `ReadModel` 为中心，由统一分发器一次性分发到多个 `StoreBinding`。
-3. 每个 `StoreBinding` 仅绑定一个同类 provider（Document 1个、Graph 1个），不再引入 provider 级 fan-out 与“首注册查询源”语义。
-
-## 7. 冗余问题清单（重排后）
-
-### P1-1（高）“ReadModel -> 多Store”未被统一抽象表达
-
-1. 当前是 Document/Graph 双主干 + 分支路由，不是单一 `Store` 家族同层并行。
-2. 直接导致你感知的“实现不并行”。
-
-### P1-2（高）Graph 双模型并存且高度重复
-
-1. ReadModel 侧：`GraphNodeDescriptor`/`GraphEdgeDescriptor`。
-2. Store 侧：`ProjectionGraphNode`/`ProjectionGraphEdge`。
-3. Runtime 强制桥接转换。
-
-### P1-3（高）能力判定依赖 marker + 运行时反射
-
-1. `IDocumentReadModel` 是空 marker。
-2. `ProjectionMaterializationRouter` 通过 `IsAssignableFrom` 路由。
-3. 编译期无法直接保证“同层 Store 分发能力矩阵”。
-
-### P1-4（高）Metadata 能力只在 Document 分支存在
-
-1. Document 有 metadata provider/resolver。
-2. Graph 分支没有等价契约，进一步拉大两条链路语义差距。
-
-### P2-5（中）运行态系统键暴露到 Stores.Abstractions
-
-1. `ProjectionGraphSystemPropertyKeys` 位于抽象层。
-2. 实际语义是 runtime/provider 的内部生命周期键。
-
-### P2-6（中）Neo4j managed 信息双存
-
-1. `propertiesJson` 与 `projectionManaged/projectionOwnerId` 同时存储。
-2. 引入冗余与一致性维护成本。
-
-### P2-7（中）文档陈旧术语残留
-
-1. 仍有 `IProjectionReadModelStore` 等旧术语残留。
-
-### P3-8（低）`ProjectionGraphSubgraph` 可变结构可进一步收敛
-
-1. 非功能缺陷，但语义表达可更简化。
-
-## 8. 架构评分（严格，按你口径）
-
-### 8.1 评分维度与结果
-
-| 维度 | 权重 | 得分 | 说明 |
-|---|---:|---:|---|
-| `ReadModel -> N Stores` 口径符合度 | 20 | 13 | 能同时投影到多 provider，但分发不是统一 store 家族。 |
-| Document/Graph 同层并行一致性 | 20 | 10 | 目前是双主干 + Graph 专有中间层，层级不对齐。 |
-| 抽象最小化与去冗余 | 20 | 12 | 双模型、marker+反射、系统键外泄导致冗余偏高。 |
-| 数据模型一致性 | 15 | 10 | Graph descriptor/store model 重复，Neo4j managed 双存。 |
-| Provider 扩展一致性 | 10 | 8 | 注册模式一致，但能力面不对称（metadata、materializer）。 |
-| 测试与治理门禁 | 10 | 9 | 关键路由与投影流程门禁覆盖较好。 |
-| 文档一致性 | 5 | 2 | 仍有旧术语未清理。 |
-
-### 8.2 总分
-
-- **64 / 100（C-，严格口径）**
-
-## 9. 审计结论（直接回答你的问题）
-
-1. 你说的“一对多”定义是对的，且应作为重构目标模型。
-2. 当前代码**功能上可并行写入**，但**架构形状并不并行**，你的不适感来自真实的结构不对称。
-3. 现状更准确描述是：`ReadModel` 经过“Document链 + Graph链”双分支处理，而不是统一 `Store` 家族的一体化多路分发。
-
-## 10. 实施计划（彻底重构，无兼容性）
-
-### 10.1 约束与完成定义
-
-1. 不保留兼容层，不保留旧接口转发壳。
-2. 同类 Provider 仅 1 个实例：Document 1 个、Graph 1 个。
-3. 删除 fan-out 与“主存储/首注册查询源”语义。
-4. `ReadModel -> N Stores` 由统一分发器一次分发完成，`DocumentStore` 与 `GraphStore` 为同层实现。
-5. 完成定义：旧双主干代码删除，Workflow 投影链路跑通，核心测试与架构门禁通过。
-
-### 10.2 总体实施图（阶段化）
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-  P0["Phase 0: 冻结目标与删除范围"] --> P1["Phase 1: 抽象重建(统一Store分发)"]
-  P1 --> P2["Phase 2: Runtime替换(去Fanout/去双路由)"]
-  P2 --> P3["Phase 3: Provider重接入(单实例)"]
-  P3 --> P4["Phase 4: Workflow接入改造"]
-  P4 --> P5["Phase 5: 测试迁移与门禁收敛"]
-  P5 --> P6["Phase 6: 文档清理与最终复评分"]
-```
-
-### 10.3 Phase 0：冻结目标与删除范围
-
-1. 固化目标模型：统一分发器 + 同层 StoreBinding + 同类 Provider 单实例。
-2. 固化删除范围（本次重构必须删除）：
-   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs`
-   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs`
-   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs`
-   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs`
-   - `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs`
-   - `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionGraphMaterializer.cs`
-   - `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs`
-   - `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs`
-3. 冻结决策：不再接受“恢复 fan-out”或“恢复主存储”回退。
-
-### 10.4 Phase 1：抽象重建（统一 Store 分发）
-
-1. 在 `Aevatar.CQRS.Projection.Stores.Abstractions` 新增统一 StoreBinding 抽象（建议放在 `Abstractions/Stores/`）。
-2. 用统一写入契约替代 `IDocumentProjectionStore` 与 `IProjectionGraphStore` 的分裂入口。
-3. 保留“索引元数据、关系语义”，但改为按 ReadModel 泛型/绑定提供，不再依赖 marker 能力链。
-4. 统一 Graph 模型：删除 `GraphNodeDescriptor/GraphEdgeDescriptor` 与 `ProjectionGraphNode/ProjectionGraphEdge` 的双模型并存状态，只保留一套权威模型。
-5. 将 `ProjectionGraphSystemPropertyKeys` 下沉到 Runtime 或 Provider，抽象层不暴露运行态内部键。
-
-### 10.5 Phase 2：Runtime 替换（去 Fanout/去双路由）
-
-1. 在 `Aevatar.CQRS.Projection.Runtime` 新增统一分发器实现（单入口、一次分发）。
-2. 删除旧双路由注册：
-   - `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs` 中移除 `ProjectionDocumentStoreFanout/ProjectionGraphStoreFanout/ProjectionMaterializationRouter/ProjectionGraphMaterializer` 注册。
-3. Runtime DI 改为注册：
-   - 统一 Dispatcher
-   - StoreBinding 列表
-   - ReadModel 元数据解析器（若保留）
-4. 禁止运行时 `IsAssignableFrom` 能力判定路径。
-
-### 10.6 Phase 3：Provider 重接入（单实例）
+## 5. 并行性核对（结论：通过）
 
-1. `Aevatar.CQRS.Projection.Providers.Elasticsearch` 仅提供 Document 绑定实现，不再提供注册到 fan-out 的适配。
-2. `Aevatar.CQRS.Projection.Providers.Neo4j` 仅提供 Graph 绑定实现，不再提供注册到 fan-out 的适配。
-3. `Aevatar.CQRS.Projection.Providers.InMemory` 保留开发/测试用途实现，但同样走统一 Binding 协议。
-4. 宿主层强约束：同类 provider 只能注册 1 个，多于 1 个直接 fail-fast。
+| 层级 | Document | Graph | 结果 |
+|---|---|---|---|
+| 抽象层 | `IProjectionDocumentStore<TReadModel,TKey>` | `IProjectionGraphStore` | 平行 |
+| Runtime Binding | `ProjectionDocumentStoreBinding` | `ProjectionGraphStoreBinding` | 平行 |
+| Runtime 分发 | `IProjectionStoreDispatcher` 统一调度 | `IProjectionStoreDispatcher` 统一调度 | 平行 |
+| InMemory Provider | `InMemoryProjectionDocumentStore` | `InMemoryProjectionGraphStore` | 平行 |
+| Durable Provider | `ElasticsearchProjectionDocumentStore` | `Neo4jProjectionGraphStore` | 平行 |
 
-### 10.7 Phase 4：Workflow 接入改造
+## 6. 冗余审计（已清理）
 
-1. 改造 `src/workflow/Aevatar.Workflow.Projection`：
-   - Projector/Updater 从旧 `IProjectionMaterializationRouter<,>` 切换到统一 dispatcher。
-   - QueryReader 保持读侧语义，但查询端口来自统一 StoreBinding 模型。
-2. 改造 `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`：
-   - 删除旧 `Add*StoreRegistration` 路径。
-   - 使用“Document 单实例 + Graph 单实例”显式注册。
-   - 发现同类重复注册时抛异常（启动失败）。
-3. `WorkflowExecutionReport` 保留索引、关系语义提供能力，但不再承担 marker 路由职责。
+已删除冗余层：
 
-### 10.8 Phase 5：测试迁移与门禁收敛
+- `IProjectionStoreRegistration` / `DelegateProjectionStoreRegistration`
+- `IProjectionMaterializationRouter` / `ProjectionMaterializationRouter`
+- `IProjectionGraphMaterializer` / `ProjectionGraphMaterializer`
+- `ProjectionDocumentStoreFanout` / `ProjectionGraphStoreFanout`
+- `IDocumentReadModel`
+- `GraphNodeDescriptor` / `GraphEdgeDescriptor`
+- `ProjectionGraphSystemPropertyKeys`
 
-1. 删除或改写依赖 fan-out/首注册语义的测试：
-   - `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs`
-   - `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs`
-2. 新增统一分发器测试矩阵：
-   - 单 ReadModel 同时写 Document+Graph
-   - 同类 provider 重复注册 fail-fast
-   - Graph/Document 任一写入失败时的错误传播策略
-3. Workflow 侧新增端到端断言：
-   - 一次投影后，ES 可检索，Neo4j 可遍历，且来源同一 ReadModel 版本。
-4. 必跑命令：
-   - `dotnet build aevatar.slnx --nologo`
-   - `dotnet test aevatar.slnx --nologo`
-   - `bash tools/ci/architecture_guards.sh`
-   - `bash tools/ci/projection_route_mapping_guard.sh`
-   - `bash tools/ci/test_stability_guards.sh`
+## 7. 实施核对
 
-### 10.9 Phase 6：文档清理与最终复评分
+已落地关键项：
 
-1. 清理旧术语：
-   - `IProjectionReadModelStore`
-   - `Projection*Fanout`
-   - `主存储/首注册查询源`
-2. 更新文档：
-   - `src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md`
-   - `src/Aevatar.CQRS.Projection.Runtime/README.md`
-   - `src/workflow/Aevatar.Workflow.Projection/README.md`
-   - `docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md`
-3. 复评输出：在 `docs/audit-scorecard/` 新增重构后评分文档，验证目标分数应达到 `>= 90`。
+1. Workflow Projector / Updater 全部使用 `IProjectionStoreDispatcher`。
+2. Workflow Host Provider 装配强制“同类 Provider 仅一个”。
+3. Document/Graph 双写通过 Dispatcher + Binding 实现，不依赖 Router/Fanout。
+4. CI 守卫脚本已更新到新命名（DocumentStore 命名体系）。
 
-### 10.10 风险与控制
+## 8. 验证记录
 
-1. 风险：一次性删除旧抽象导致大面积编译错误。  
-控制：按 Phase 提交，每阶段必须 `build + targeted test` 全绿后进入下一阶段。
-2. 风险：Workflow 查询端口在接口切换时出现行为回归。  
-控制：先补端到端基线测试，再替换实现。
-3. 风险：Neo4j 属性模型收敛时丢失 managed 生命周期信息。  
-控制：先定义唯一事实字段，再做一次性数据迁移脚本或重建策略。
+执行通过：
 
-### 10.11 里程碑验收清单（必须全部满足）
+1. `dotnet build aevatar.slnx --nologo`
+2. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
+3. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
+4. `bash tools/ci/architecture_guards.sh`
+5. `bash tools/ci/projection_route_mapping_guard.sh`
+6. `bash tools/ci/test_stability_guards.sh`
 
-1. 代码中不存在 `ProjectionDocumentStoreFanout`、`ProjectionGraphStoreFanout`、`ProjectionMaterializationRouter`、`ProjectionGraphMaterializer`。
-2. Runtime 不存在基于 marker 的 `IsAssignableFrom` 路由分支。
-3. 同类 Provider 重复注册时启动即失败（明确错误消息）。
-4. 单次投影可同时落 Document 与 Graph，两边查询结果一致。
-5. 全量测试与门禁命令通过。
+结论：当前 Projection Store/ReadModel 架构已满足“彻底重构，无兼容性包袱”的目标。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionDocumentStoreOptions.cs
similarity index 91%
rename from src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs
rename to src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionDocumentStoreOptions.cs
index 21121ae17..a75fc8cb6 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionReadModelStoreOptions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionDocumentStoreOptions.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
 
-public sealed class ElasticsearchProjectionReadModelStoreOptions
+public sealed class ElasticsearchProjectionDocumentStoreOptions
 {
     public List<string> Endpoints { get; set; } = [];
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index a6aee7094..cfb3d4657 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -7,9 +7,9 @@ namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
 
 public static class ServiceCollectionExtensions
 {
-    public static IServiceCollection AddElasticsearchDocumentStoreRegistration<TReadModel, TKey>(
+    public static IServiceCollection AddElasticsearchDocumentProjectionStore<TReadModel, TKey>(
         this IServiceCollection services,
-        Func<IServiceProvider, ElasticsearchProjectionReadModelStoreOptions> optionsFactory,
+        Func<IServiceProvider, ElasticsearchProjectionDocumentStoreOptions> optionsFactory,
         Func<IServiceProvider, DocumentIndexMetadata> metadataFactory,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null)
@@ -19,15 +19,13 @@ public static IServiceCollection AddElasticsearchDocumentStoreRegistration<TRead
         ArgumentNullException.ThrowIfNull(metadataFactory);
         ArgumentNullException.ThrowIfNull(keySelector);
 
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
-                "Elasticsearch",
-                provider => new ElasticsearchProjectionReadModelStore<TReadModel, TKey>(
-                    optionsFactory(provider),
-                    metadataFactory(provider),
-                    keySelector,
-                    keyFormatter,
-                    provider.GetService<ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>>())));
+        services.AddSingleton<IProjectionDocumentStore<TReadModel, TKey>>(provider =>
+            new ElasticsearchProjectionDocumentStore<TReadModel, TKey>(
+                optionsFactory(provider),
+                metadataFactory(provider),
+                keySelector,
+                keyFormatter,
+                provider.GetService<ILogger<ElasticsearchProjectionDocumentStore<TReadModel, TKey>>>()));
 
         return services;
     }
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
index 4b253f469..e6b6677c2 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/README.md
@@ -1,20 +1,18 @@
 # Aevatar.CQRS.Projection.Providers.Elasticsearch
 
-通用 Elasticsearch Document ReadModel Provider。
+Elasticsearch Document Provider。
 
-- 不依赖任何业务域 read model。
-- 通过 `IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>` 与上层模块解耦集成。
-- `MutateAsync` 基于 `seq_no/primary_term` 执行 OCC（冲突可重试，超限失败）。
-- `AutoCreateIndex=false` 时可通过 `MissingIndexBehavior` 控制索引缺失行为（默认抛错）。
-- `ListSortField` 为空时默认按 `CreatedAt desc -> _id desc` 排序。
-- 索引初始化支持 `DocumentIndexMetadata`：`Mappings`、`Settings`、`Aliases`（结构化对象）。
+## 能力
 
-## DI 注册
+- `ElasticsearchProjectionDocumentStore<TReadModel, TKey>`
+- OCC 更新：`seq_no/primary_term`
+- 基于 `DocumentIndexMetadata` 的索引初始化（`Mappings/Settings/Aliases`）
 
-- `AddElasticsearchDocumentStoreRegistration<TReadModel, TKey>(...)`
+## DI
 
-关键参数：
+- `AddElasticsearchDocumentProjectionStore<TReadModel, TKey>(...)`
 
-- `optionsFactory`：绑定 `Projection:Document:Providers:Elasticsearch:*` 配置。
-- `metadataFactory`：通常由 `IProjectionDocumentMetadataResolver` 解析 `IProjectionDocumentMetadataProvider<TReadModel>`。
-- `keySelector/keyFormatter`：ReadModel 主键映射。
+## 配置
+
+- `Projection:Document:Providers:Elasticsearch:*`
+- 至少配置 `Endpoints`
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs
similarity index 97%
rename from src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
rename to src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs
index 04ac0c4b5..84334f187 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs
@@ -8,8 +8,8 @@
 
 namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
 
-public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
-    : IDocumentProjectionStore<TReadModel, TKey>,
+public sealed class ElasticsearchProjectionDocumentStore<TReadModel, TKey>
+    : IProjectionDocumentStore<TReadModel, TKey>,
       IDisposable
     where TReadModel : class
 {
@@ -27,7 +27,7 @@ public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
     private readonly ElasticsearchMissingIndexBehavior _missingIndexBehavior;
     private readonly int _mutateMaxRetryCount;
     private readonly DocumentIndexMetadata _indexMetadata;
-    private readonly ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>> _logger;
+    private readonly ILogger<ElasticsearchProjectionDocumentStore<TReadModel, TKey>> _logger;
     private readonly SemaphoreSlim _indexInitializationLock = new(1, 1);
     private readonly JsonSerializerOptions _jsonOptions = new()
     {
@@ -35,12 +35,12 @@ public sealed class ElasticsearchProjectionReadModelStore<TReadModel, TKey>
     };
     private bool _indexInitialized;
 
-    public ElasticsearchProjectionReadModelStore(
-        ElasticsearchProjectionReadModelStoreOptions options,
+    public ElasticsearchProjectionDocumentStore(
+        ElasticsearchProjectionDocumentStoreOptions options,
         DocumentIndexMetadata indexMetadata,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
-        ILogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>? logger = null,
+        ILogger<ElasticsearchProjectionDocumentStore<TReadModel, TKey>>? logger = null,
         HttpMessageHandler? httpMessageHandler = null)
     {
         ArgumentNullException.ThrowIfNull(options);
@@ -73,7 +73,7 @@ public ElasticsearchProjectionReadModelStore(
         _keySelector = keySelector;
         _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
         _listSortField = options.ListSortField?.Trim() ?? "";
-        _logger = logger ?? NullLogger<ElasticsearchProjectionReadModelStore<TReadModel, TKey>>.Instance;
+        _logger = logger ?? NullLogger<ElasticsearchProjectionDocumentStore<TReadModel, TKey>>.Instance;
     }
 
     public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default) =>
@@ -329,7 +329,7 @@ private InvalidOperationException BuildMissingIndexException(string operation, s
     {
         return new InvalidOperationException(
             $"Elasticsearch index '{_indexName}' was not found during '{operation}' for read-model '{typeof(TReadModel).FullName}'. " +
-            $"Configure index bootstrap or set '{nameof(ElasticsearchProjectionReadModelStoreOptions.AutoCreateIndex)}=true'. " +
+            $"Configure index bootstrap or set '{nameof(ElasticsearchProjectionDocumentStoreOptions.AutoCreateIndex)}=true'. " +
             $"body={TruncatePayload(payload)}");
     }
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index 90ce52acb..4f65f38d8 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -6,7 +6,7 @@ namespace Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 
 public static class ServiceCollectionExtensions
 {
-    public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel, TKey>(
+    public static IServiceCollection AddInMemoryDocumentProjectionStore<TReadModel, TKey>(
         this IServiceCollection services,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
@@ -16,26 +16,21 @@ public static IServiceCollection AddInMemoryDocumentStoreRegistration<TReadModel
     {
         ArgumentNullException.ThrowIfNull(keySelector);
 
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>(
-                "InMemory",
-                provider => new InMemoryProjectionReadModelStore<TReadModel, TKey>(
-                    keySelector,
-                    keyFormatter,
-                    listSortSelector,
-                    listTakeMax,
-                    provider.GetService<ILogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>>())));
+        services.AddSingleton<IProjectionDocumentStore<TReadModel, TKey>>(provider =>
+            new InMemoryProjectionDocumentStore<TReadModel, TKey>(
+                keySelector,
+                keyFormatter,
+                listSortSelector,
+                listTakeMax,
+                provider.GetService<ILogger<InMemoryProjectionDocumentStore<TReadModel, TKey>>>()));
 
         return services;
     }
 
-    public static IServiceCollection AddInMemoryGraphStoreRegistration(
+    public static IServiceCollection AddInMemoryGraphProjectionStore(
         this IServiceCollection services)
     {
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "InMemory",
-                _ => new InMemoryProjectionGraphStore()));
+        services.AddSingleton<IProjectionGraphStore, InMemoryProjectionGraphStore>();
 
         return services;
     }
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
index c1705238d..c005c9512 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/README.md
@@ -1,19 +1,18 @@
 # Aevatar.CQRS.Projection.Providers.InMemory
 
-通用 InMemory Provider（支持 Document/Graph 两类能力）。
+通用 InMemory Provider，提供 Document 与 Graph 两类平行实现。
 
-- 不依赖业务域模型。
-- 支持按 keySelector 注册任意 `IDocumentProjectionStore<TReadModel, TKey>`（Document）。
-- 支持图存储注册（Graph）。
-- 仅用于开发和测试语义，不作为生产事实源。
+## 能力
 
-## DI 注册
+- Document：`InMemoryProjectionDocumentStore<TReadModel, TKey>`
+- Graph：`InMemoryProjectionGraphStore`
 
-- `AddInMemoryDocumentStoreRegistration<TReadModel, TKey>(...)`
-- `AddInMemoryGraphStoreRegistration()`
+## DI
 
-关键参数：
+- `AddInMemoryDocumentProjectionStore<TReadModel, TKey>(...)`
+- `AddInMemoryGraphProjectionStore()`
 
-- `keySelector/keyFormatter`：ReadModel 主键映射。
-- `listSortSelector`：`ListAsync` 排序字段（可选）。
-- `listTakeMax`：`ListAsync` 硬上限。
+## 说明
+
+- 仅用于开发/测试语义。
+- 不作为生产事实源。
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs
similarity index 93%
rename from src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
rename to src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs
index 0e8e9ae79..391a3958c 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs
@@ -4,8 +4,8 @@
 
 namespace Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 
-public sealed class InMemoryProjectionReadModelStore<TReadModel, TKey>
-    : IDocumentProjectionStore<TReadModel, TKey>
+public sealed class InMemoryProjectionDocumentStore<TReadModel, TKey>
+    : IProjectionDocumentStore<TReadModel, TKey>
     where TReadModel : class
 {
     private const string ProviderName = "InMemory";
@@ -15,22 +15,22 @@ public sealed class InMemoryProjectionReadModelStore<TReadModel, TKey>
     private readonly Func<TKey, string> _keyFormatter;
     private readonly Func<TReadModel, object?>? _listSortSelector;
     private readonly int _listTakeMax;
-    private readonly ILogger<InMemoryProjectionReadModelStore<TReadModel, TKey>> _logger;
+    private readonly ILogger<InMemoryProjectionDocumentStore<TReadModel, TKey>> _logger;
     private readonly JsonSerializerOptions _jsonOptions = new();
 
-    public InMemoryProjectionReadModelStore(
+    public InMemoryProjectionDocumentStore(
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null,
         Func<TReadModel, object?>? listSortSelector = null,
         int listTakeMax = 200,
-        ILogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>? logger = null)
+        ILogger<InMemoryProjectionDocumentStore<TReadModel, TKey>>? logger = null)
     {
         ArgumentNullException.ThrowIfNull(keySelector);
         _keySelector = keySelector;
         _keyFormatter = keyFormatter ?? (key => key?.ToString() ?? "");
         _listSortSelector = listSortSelector;
         _listTakeMax = listTakeMax > 0 ? listTakeMax : 200;
-        _logger = logger ?? NullLogger<InMemoryProjectionReadModelStore<TReadModel, TKey>>.Instance;
+        _logger = logger ?? NullLogger<InMemoryProjectionDocumentStore<TReadModel, TKey>>.Instance;
     }
 
     public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
index 3a3771614..cd5eb427a 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
@@ -94,7 +94,7 @@ public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
             nodes = _nodes.Values
                 .Where(x => string.Equals(x.Scope, scopeValue, StringComparison.Ordinal))
                 .Where(x =>
-                    x.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey, out var nodeOwnerId) &&
+                    x.Properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var nodeOwnerId) &&
                     string.Equals(NormalizeToken(nodeOwnerId), ownerValue, StringComparison.Ordinal))
                 .OrderByDescending(x => x.UpdatedAt)
                 .Take(boundedTake)
@@ -124,7 +124,7 @@ public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
             edges = _edges.Values
                 .Where(x => string.Equals(x.Scope, scopeValue, StringComparison.Ordinal))
                 .Where(x =>
-                    x.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey, out var edgeOwnerId) &&
+                    x.Properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var edgeOwnerId) &&
                     string.Equals(NormalizeToken(edgeOwnerId), ownerValue, StringComparison.Ordinal))
                 .OrderByDescending(x => x.UpdatedAt)
                 .Take(boundedTake)
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index 2ffa1cfa9..47ef3fcb2 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -7,7 +7,7 @@ namespace Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
 
 public static class ServiceCollectionExtensions
 {
-    public static IServiceCollection AddNeo4jGraphStoreRegistration(
+    public static IServiceCollection AddNeo4jGraphProjectionStore(
         this IServiceCollection services,
         Func<IServiceProvider, Neo4jProjectionGraphStoreOptions> optionsFactory,
         Func<IServiceProvider, string> scopeFactory)
@@ -15,13 +15,11 @@ public static IServiceCollection AddNeo4jGraphStoreRegistration(
         ArgumentNullException.ThrowIfNull(optionsFactory);
         ArgumentNullException.ThrowIfNull(scopeFactory);
 
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "Neo4j",
-                provider => new Neo4jProjectionGraphStore(
-                    optionsFactory(provider),
-                    scopeFactory(provider),
-                    provider.GetService<ILogger<Neo4jProjectionGraphStore>>())));
+        services.AddSingleton<IProjectionGraphStore>(provider =>
+            new Neo4jProjectionGraphStore(
+                optionsFactory(provider),
+                scopeFactory(provider),
+                provider.GetService<ILogger<Neo4jProjectionGraphStore>>()));
 
         return services;
     }
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
index 7532a159e..0f8fbcd24 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/README.md
@@ -1,17 +1,18 @@
 # Aevatar.CQRS.Projection.Providers.Neo4j
 
-通用 Neo4j Provider（仅 Graph 能力）。
+Neo4j Graph Provider。
 
-- 不依赖任何业务域 read model。
-- 通过 `IProjectionStoreRegistration<IProjectionGraphStore>` 与上层模块解耦集成（Graph）。
-- 基于官方 `Neo4j.Driver` 实现连接与会话管理。
-- 支持 schema 约束初始化、邻居查询、子图遍历、owner 维度边查询（用于精确清理）。
+## 能力
 
-## DI 注册
+- `Neo4jProjectionGraphStore`
+- 邻居查询 / 子图查询
+- owner 维度节点与边查询（用于精确清理）
 
-- `AddNeo4jGraphStoreRegistration(...)`
+## DI
 
-关键参数：
+- `AddNeo4jGraphProjectionStore(...)`
 
-- `optionsFactory`：绑定 `Projection:Graph:Providers:Neo4j:*` 配置。
-- `scopeFactory`：graph scope 提供器。
+## 配置
+
+- `Projection:Graph:Providers:Neo4j:*`
+- 至少配置 `Uri`
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
index 123f9bb95..085c574a7 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
@@ -597,19 +597,19 @@ private static string[] NormalizeEdgeTypes(IReadOnlyList<string> edgeTypes)
 
     private static bool ResolveProjectionManaged(IReadOnlyDictionary<string, string> properties)
     {
-        if (!properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedMarkerKey, out var markerValue))
+        if (!properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedMarkerKey, out var markerValue))
             return false;
 
         var normalizedMarker = NormalizeToken(markerValue);
         return string.Equals(
             normalizedMarker,
-            ProjectionGraphSystemPropertyKeys.ManagedMarkerValue,
+            ProjectionGraphManagedPropertyKeys.ManagedMarkerValue,
             StringComparison.Ordinal);
     }
 
     private static string ResolveProjectionOwnerId(IReadOnlyDictionary<string, string> properties)
     {
-        if (!properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey, out var ownerId))
+        if (!properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var ownerId))
             return "";
 
         return NormalizeToken(ownerId);
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
deleted file mode 100644
index 58c36550f..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/DelegateProjectionStoreRegistration.cs
+++ /dev/null
@@ -1,26 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public sealed class DelegateProjectionStoreRegistration<TStore> : IProjectionStoreRegistration<TStore>
-{
-    private readonly Func<IServiceProvider, TStore> _factory;
-
-    public DelegateProjectionStoreRegistration(
-        string providerName,
-        Func<IServiceProvider, TStore> factory)
-    {
-        if (string.IsNullOrWhiteSpace(providerName))
-            throw new ArgumentException("Provider name must not be empty.", nameof(providerName));
-        ArgumentNullException.ThrowIfNull(factory);
-
-        ProviderName = providerName.Trim();
-        _factory = factory;
-    }
-
-    public string ProviderName { get; }
-
-    public TStore Create(IServiceProvider serviceProvider)
-    {
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-        return _factory(serviceProvider);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
deleted file mode 100644
index d43210ba0..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Core/IProjectionStoreRegistration.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionStoreRegistration<out TStore>
-{
-    string ProviderName { get; }
-
-    TStore Create(IServiceProvider serviceProvider);
-}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSystemPropertyKeys.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphManagedPropertyKeys.cs
similarity index 63%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSystemPropertyKeys.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphManagedPropertyKeys.cs
index 897779c46..c34f78a97 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSystemPropertyKeys.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphManagedPropertyKeys.cs
@@ -1,6 +1,6 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
-public static class ProjectionGraphSystemPropertyKeys
+public static class ProjectionGraphManagedPropertyKeys
 {
     public const string ManagedMarkerKey = "projectionManaged";
 
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs
index 4cc868952..15a667fd9 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs
@@ -3,5 +3,5 @@ namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 public interface IProjectionDocumentMetadataResolver
 {
     DocumentIndexMetadata Resolve<TReadModel>()
-        where TReadModel : class, IDocumentReadModel;
+        where TReadModel : class, IProjectionReadModel;
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionGraphMaterializer.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionGraphMaterializer.cs
deleted file mode 100644
index 8a8f0cb50..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionGraphMaterializer.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
-
-public interface IProjectionGraphMaterializer<in TReadModel>
-    where TReadModel : class
-{
-    Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct = default);
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionQueryableStoreBinding.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionQueryableStoreBinding.cs
new file mode 100644
index 000000000..bed846859
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionQueryableStoreBinding.cs
@@ -0,0 +1,12 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionQueryableStoreBinding<TReadModel, in TKey>
+    : IProjectionStoreBinding<TReadModel, TKey>
+    where TReadModel : class, IProjectionReadModel
+{
+    Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default);
+
+    Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default);
+
+    Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBinding.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBinding.cs
new file mode 100644
index 000000000..8f8196c90
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBinding.cs
@@ -0,0 +1,9 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionStoreBinding<in TReadModel, in TKey>
+    where TReadModel : class, IProjectionReadModel
+{
+    string StoreName { get; }
+
+    Task UpsertAsync(TReadModel readModel, CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatcher.cs
similarity index 86%
rename from src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs
rename to src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatcher.cs
index 4f503ad2d..78a088f59 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Selection/IProjectionMaterializationRouter.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatcher.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 
-public interface IProjectionMaterializationRouter<TReadModel, in TKey>
+public interface IProjectionStoreDispatcher<TReadModel, in TKey>
     where TReadModel : class, IProjectionReadModel
 {
     Task UpsertAsync(TReadModel readModel, CancellationToken ct = default);
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
index 2d56c396d..e085b8c1e 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
@@ -1,26 +1,23 @@
 # Aevatar.CQRS.Projection.Runtime.Abstractions
 
-`Aevatar.CQRS.Projection.Runtime.Abstractions` 承载 Projection Runtime 的编排契约，不承载任何具体 Provider 实现。
+`Aevatar.CQRS.Projection.Runtime.Abstractions` 定义 Runtime 层的最小编排契约。
 
-## 目录结构
+## 契约清单
 
-- `Abstractions/Core`：Store 注册契约（`IProjectionStoreRegistration<TStore>`）
-- `Abstractions/ReadModels`：Document metadata resolver
-- `Abstractions/Selection`：Materialization 路由与 graph materializer 契约
+- `IProjectionStoreDispatcher<TReadModel, TKey>`
+- `IProjectionStoreBinding<TReadModel, TKey>`
+- `IProjectionQueryableStoreBinding<TReadModel, TKey>`
+- `IProjectionDocumentMetadataResolver`
+- `ProjectionGraphManagedPropertyKeys`
 
-## 关键契约
+## 模型说明
 
-- Store 注册：`IProjectionStoreRegistration<TStore>`
-  - `ProviderName`
-- Materialization：`IProjectionMaterializationRouter<TReadModel, TKey>`、`IProjectionGraphMaterializer<TReadModel>`
-- Metadata：`IProjectionDocumentMetadataResolver`
+1. 一个 ReadModel 可绑定多个 Store（例如 Document + Graph）。
+2. 仅允许一个 `IProjectionQueryableStoreBinding` 作为查询/读取来源。
+3. 其余 binding 作为写入目标参与分发。
 
-查询语义：
+## 边界
 
-- Fan-out Runtime 以注册顺序选择查询源（第一个注册的 provider 作为 query store，其余作为写入副本）。
-
-## 约束
-
-1. 不包含 ProviderName 选择与 RuntimeOptions。
-2. 不包含能力协商模型（Capabilities/Requirements/CapabilityValidator）。
-3. 仅依赖 `Aevatar.CQRS.Projection.Stores.Abstractions`。
+- 不包含具体 Provider 实现。
+- 不包含业务域 ReadModel。
+- 仅依赖 `Aevatar.CQRS.Projection.Stores.Abstractions`。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index 909929674..bacc46ac3 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -8,10 +8,9 @@ public static class ServiceCollectionExtensions
 {
     public static IServiceCollection AddProjectionReadModelRuntime(this IServiceCollection services)
     {
-        services.TryAddSingleton(typeof(IDocumentProjectionStore<,>), typeof(ProjectionDocumentStoreFanout<,>));
-        services.TryAddSingleton<IProjectionGraphStore, ProjectionGraphStoreFanout>();
-        services.TryAddSingleton(typeof(IProjectionGraphMaterializer<>), typeof(ProjectionGraphMaterializer<>));
-        services.TryAddSingleton(typeof(IProjectionMaterializationRouter<,>), typeof(ProjectionMaterializationRouter<,>));
+        services.TryAddSingleton(typeof(IProjectionStoreDispatcher<,>), typeof(ProjectionStoreDispatcher<,>));
+        services.TryAddSingleton(typeof(IProjectionQueryableStoreBinding<,>), typeof(ProjectionDocumentStoreBinding<,>));
+        services.TryAddEnumerable(ServiceDescriptor.Singleton(typeof(IProjectionStoreBinding<,>), typeof(ProjectionDocumentStoreBinding<,>)));
         services.TryAddSingleton<IProjectionDocumentMetadataResolver, ProjectionDocumentMetadataResolver>();
         return services;
     }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/README.md b/src/Aevatar.CQRS.Projection.Runtime/README.md
index e923f7c74..f39bc5cea 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime/README.md
@@ -1,14 +1,13 @@
 # Aevatar.CQRS.Projection.Runtime
 
-通用 ReadModel Runtime 组装层。
+通用 Projection Runtime 组装层。
 
 ## 职责
 
-- Store Fan-out 组合：
-  - `ProjectionDocumentStoreFanout<TReadModel, TKey>`
-  - `ProjectionGraphStoreFanout`
-- Materialization 路由：`IProjectionMaterializationRouter<TReadModel, TKey>`、`ProjectionGraphMaterializer<TReadModel>`
-- Document metadata 解析：`IProjectionDocumentMetadataResolver`
+- 统一分发：`ProjectionStoreDispatcher<TReadModel, TKey>`
+- Document Binding：`ProjectionDocumentStoreBinding<TReadModel, TKey>`
+- Graph Binding：`ProjectionGraphStoreBinding<TReadModel, TKey>`
+- Document Metadata 解析：`ProjectionDocumentMetadataResolver`
 
 ## DI 入口
 
@@ -16,15 +15,13 @@
 
 默认注册：
 
-- `IDocumentProjectionStore<,>` -> `ProjectionDocumentStoreFanout<,>`
-- `IProjectionGraphStore` -> `ProjectionGraphStoreFanout`
-- `IProjectionGraphMaterializer<>`
-- `IProjectionMaterializationRouter<,>`
-- `IProjectionDocumentMetadataResolver`
+- `IProjectionStoreDispatcher<,>` -> `ProjectionStoreDispatcher<,>`
+- `IProjectionQueryableStoreBinding<,>` -> `ProjectionDocumentStoreBinding<,>`
+- `IProjectionStoreBinding<,>`(默认) -> `ProjectionDocumentStoreBinding<,>`
+- `IProjectionDocumentMetadataResolver` -> `ProjectionDocumentMetadataResolver`
 
-## 设计约束
+## 语义
 
-1. 不承载业务 ReadModel 类型。
-2. 不做 providerName 单选，不存在运行时降级逻辑；多 provider 采用“注册顺序即查询顺序”。
-3. Document 与 Graph 完全解耦，分别按注册列表一对多分发（写 fan-out，读走首注册 provider）。
-4. 仅依赖抽象契约与 DI；具体 Provider 由上层注册。
+1. Runtime 负责“一对多 store 分发”，不做 ProviderName 路由。
+2. Document 与 Graph 保持平行；Graph 通过额外 binding 接入。
+3. 查询统一走唯一 queryable binding；写入同时分发到所有 binding。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs
index 397341711..7c3a110c0 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs
@@ -12,7 +12,7 @@ public ProjectionDocumentMetadataResolver(IServiceProvider serviceProvider)
     }
 
     public DocumentIndexMetadata Resolve<TReadModel>()
-        where TReadModel : class, IDocumentReadModel
+        where TReadModel : class, IProjectionReadModel
     {
         var provider = _serviceProvider.GetRequiredService<IProjectionDocumentMetadataProvider<TReadModel>>();
         return provider.Metadata;
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs
new file mode 100644
index 000000000..4f08e174e
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs
@@ -0,0 +1,35 @@
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionDocumentStoreBinding<TReadModel, TKey>
+    : IProjectionQueryableStoreBinding<TReadModel, TKey>
+    where TReadModel : class, IProjectionReadModel
+{
+    private readonly IProjectionDocumentStore<TReadModel, TKey> _store;
+
+    public ProjectionDocumentStoreBinding(IProjectionDocumentStore<TReadModel, TKey> store)
+    {
+        _store = store;
+    }
+
+    public string StoreName => "Document";
+
+    public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
+    {
+        return _store.UpsertAsync(readModel, ct);
+    }
+
+    public Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
+    {
+        return _store.MutateAsync(key, mutate, ct);
+    }
+
+    public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
+    {
+        return _store.GetAsync(key, ct);
+    }
+
+    public Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
+    {
+        return _store.ListAsync(take, ct);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
deleted file mode 100644
index fa225ea7e..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreFanout.cs
+++ /dev/null
@@ -1,90 +0,0 @@
-using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Logging.Abstractions;
-
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionDocumentStoreFanout<TReadModel, TKey>
-    : IDocumentProjectionStore<TReadModel, TKey>
-    where TReadModel : class
-{
-    private readonly IReadOnlyList<IDocumentProjectionStore<TReadModel, TKey>> _stores;
-    private readonly IReadOnlyList<IDocumentProjectionStore<TReadModel, TKey>> _replicaStores;
-    private readonly IDocumentProjectionStore<TReadModel, TKey> _queryStore;
-    private readonly string _queryProviderName;
-    private readonly ILogger<ProjectionDocumentStoreFanout<TReadModel, TKey>> _logger;
-
-    public ProjectionDocumentStoreFanout(
-        IEnumerable<IProjectionStoreRegistration<IDocumentProjectionStore<TReadModel, TKey>>> registrations,
-        IServiceProvider serviceProvider,
-        ILogger<ProjectionDocumentStoreFanout<TReadModel, TKey>>? logger = null)
-    {
-        ArgumentNullException.ThrowIfNull(registrations);
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-
-        var registrationList = registrations.ToList();
-        var resolvedStores = registrationList
-            .Select(x => x.Create(serviceProvider))
-            .ToList();
-        _stores = resolvedStores;
-        _logger = logger ?? NullLogger<ProjectionDocumentStoreFanout<TReadModel, TKey>>.Instance;
-
-        if (_stores.Count == 0)
-        {
-            throw new InvalidOperationException(
-                $"No document projection store providers are registered for read model '{typeof(TReadModel).FullName}'.");
-        }
-        _queryStore = _stores[0];
-        _queryProviderName = registrationList[0].ProviderName;
-        _replicaStores = _stores.Skip(1).ToList();
-        _logger.LogInformation(
-            "Projection document fan-out initialized. readModelType={ReadModelType} storeCount={StoreCount} queryProvider={QueryProvider}",
-            typeof(TReadModel).FullName,
-            _stores.Count,
-            _queryProviderName);
-    }
-
-    public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(readModel);
-        ct.ThrowIfCancellationRequested();
-
-        foreach (var store in _stores)
-        {
-            ct.ThrowIfCancellationRequested();
-            await store.UpsertAsync(readModel, ct);
-        }
-    }
-
-    public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(mutate);
-        ct.ThrowIfCancellationRequested();
-
-        await _queryStore.MutateAsync(key, mutate, ct);
-        if (_replicaStores.Count == 0)
-            return;
-
-        var updated = await _queryStore.GetAsync(key, ct);
-        if (updated == null)
-        {
-            throw new InvalidOperationException(
-                $"Document fan-out mutate completed but query store returned null for read model '{typeof(TReadModel).FullName}'.");
-        }
-
-        foreach (var store in _replicaStores)
-        {
-            ct.ThrowIfCancellationRequested();
-            await store.UpsertAsync(updated, ct);
-        }
-    }
-
-    public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
-    {
-        return _queryStore.GetAsync(key, ct);
-    }
-
-    public Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
-    {
-        return _queryStore.ListAsync(take, ct);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs
similarity index 63%
rename from src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
rename to src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs
index 11d6f8d4e..3868ee693 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphMaterializer.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs
@@ -1,50 +1,47 @@
 namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
-public sealed class ProjectionGraphMaterializer<TReadModel>
-    : IProjectionGraphMaterializer<TReadModel>
-    where TReadModel : class
+public sealed class ProjectionGraphStoreBinding<TReadModel, TKey>
+    : IProjectionStoreBinding<TReadModel, TKey>
+    where TReadModel : class, IGraphReadModel
 {
     private readonly IProjectionGraphStore _graphStore;
 
-    public ProjectionGraphMaterializer(IProjectionGraphStore graphStore)
+    public ProjectionGraphStoreBinding(IProjectionGraphStore graphStore)
     {
         _graphStore = graphStore;
     }
 
-    public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct = default)
+    public string StoreName => "Graph";
+
+    public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(readModel);
         ct.ThrowIfCancellationRequested();
-        if (readModel is not IGraphReadModel graphReadModel)
-            return;
 
-        var scope = NormalizeToken(graphReadModel.GraphScope);
+        var scope = NormalizeToken(readModel.GraphScope);
         if (scope.Length == 0)
         {
             throw new InvalidOperationException(
                 $"Graph scope is required for read model '{typeof(TReadModel).FullName}'.");
         }
 
-        var ownerId = BuildManagedOwnerId(graphReadModel);
-
-        var normalizedNodes = NormalizeNodes(graphReadModel.GraphNodes, scope, ownerId);
+        var ownerId = BuildManagedOwnerId(readModel);
+        var normalizedNodes = NormalizeNodes(readModel.GraphNodes, scope, ownerId);
         foreach (var node in normalizedNodes)
             await _graphStore.UpsertNodeAsync(node, ct);
 
-        var normalizedEdges = NormalizeEdges(graphReadModel.GraphEdges, scope, ownerId);
+        var normalizedEdges = NormalizeEdges(readModel.GraphEdges, scope, ownerId);
         foreach (var edge in normalizedEdges)
             await _graphStore.UpsertEdgeAsync(edge, ct);
 
+        var targetNodeIds = normalizedNodes
+            .Select(x => x.NodeId)
+            .ToHashSet(StringComparer.Ordinal);
         var targetEdgeIds = normalizedEdges
             .Select(x => x.EdgeId)
             .ToHashSet(StringComparer.Ordinal);
 
-        var targetNodeIds = normalizedNodes
-            .Select(x => x.NodeId)
-            .Where(x => x.Length > 0)
-            .ToHashSet(StringComparer.Ordinal);
         var existingManagedEdges = await _graphStore.ListEdgesByOwnerAsync(scope, ownerId, take: 50000, ct);
-
         foreach (var edge in existingManagedEdges.Where(IsManagedEdge))
         {
             if (targetEdgeIds.Contains(edge.EdgeId))
@@ -65,39 +62,6 @@ public async Task UpsertGraphAsync(TReadModel readModel, CancellationToken ct =
         }
     }
 
-    private static bool IsManagedEdge(ProjectionGraphEdge edge)
-    {
-        return edge.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedMarkerKey, out var markerValue) &&
-               string.Equals(markerValue, ProjectionGraphSystemPropertyKeys.ManagedMarkerValue, StringComparison.Ordinal);
-    }
-
-    private static bool IsManagedNode(ProjectionGraphNode node)
-    {
-        return node.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedMarkerKey, out var markerValue) &&
-               string.Equals(markerValue, ProjectionGraphSystemPropertyKeys.ManagedMarkerValue, StringComparison.Ordinal);
-    }
-
-    private async Task<bool> CanDeleteNodeAsync(
-        string scope,
-        string nodeId,
-        CancellationToken ct)
-    {
-        if (nodeId.Length == 0)
-            return false;
-
-        var neighbors = await _graphStore.GetNeighborsAsync(
-            new ProjectionGraphQuery
-            {
-                Scope = scope,
-                RootNodeId = nodeId,
-                Direction = ProjectionGraphDirection.Both,
-                EdgeTypes = [],
-                Take = 1,
-            },
-            ct);
-        return neighbors.Count == 0;
-    }
-
     private static string BuildManagedOwnerId(IGraphReadModel readModel)
     {
         var readModelId = NormalizeToken(readModel.Id);
@@ -114,7 +78,7 @@ private static string BuildManagedOwnerId(IGraphReadModel readModel)
     }
 
     private static IReadOnlyList<ProjectionGraphNode> NormalizeNodes(
-        IReadOnlyList<GraphNodeDescriptor> graphNodes,
+        IReadOnlyList<ProjectionGraphNode> graphNodes,
         string scope,
         string ownerId)
     {
@@ -122,20 +86,20 @@ private static IReadOnlyList<ProjectionGraphNode> NormalizeNodes(
             return [];
 
         var nodesById = new Dictionary<string, ProjectionGraphNode>(StringComparer.Ordinal);
-        foreach (var graphNode in graphNodes)
+        foreach (var sourceNode in graphNodes)
         {
-            var nodeId = NormalizeToken(graphNode.NodeId);
+            var nodeId = NormalizeToken(sourceNode.NodeId);
             if (nodeId.Length == 0)
                 continue;
 
-            var nodeType = NormalizeToken(graphNode.NodeType);
+            var nodeType = NormalizeToken(sourceNode.NodeType);
             if (nodeType.Length == 0)
                 nodeType = "Unknown";
 
-            var properties = new Dictionary<string, string>(graphNode.Properties, StringComparer.Ordinal)
+            var properties = new Dictionary<string, string>(sourceNode.Properties, StringComparer.Ordinal)
             {
-                [ProjectionGraphSystemPropertyKeys.ManagedMarkerKey] = ProjectionGraphSystemPropertyKeys.ManagedMarkerValue,
-                [ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey] = ownerId,
+                [ProjectionGraphManagedPropertyKeys.ManagedMarkerKey] = ProjectionGraphManagedPropertyKeys.ManagedMarkerValue,
+                [ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey] = ownerId,
             };
 
             nodesById[nodeId] = new ProjectionGraphNode
@@ -144,7 +108,7 @@ private static IReadOnlyList<ProjectionGraphNode> NormalizeNodes(
                 NodeId = nodeId,
                 NodeType = nodeType,
                 Properties = properties,
-                UpdatedAt = graphNode.UpdatedAt == default ? DateTimeOffset.UtcNow : graphNode.UpdatedAt,
+                UpdatedAt = sourceNode.UpdatedAt == default ? DateTimeOffset.UtcNow : sourceNode.UpdatedAt,
             };
         }
 
@@ -152,7 +116,7 @@ private static IReadOnlyList<ProjectionGraphNode> NormalizeNodes(
     }
 
     private static IReadOnlyList<ProjectionGraphEdge> NormalizeEdges(
-        IReadOnlyList<GraphEdgeDescriptor> graphEdges,
+        IReadOnlyList<ProjectionGraphEdge> graphEdges,
         string scope,
         string ownerId)
     {
@@ -160,41 +124,73 @@ private static IReadOnlyList<ProjectionGraphEdge> NormalizeEdges(
             return [];
 
         var edgesById = new Dictionary<string, ProjectionGraphEdge>(StringComparer.Ordinal);
-        foreach (var graphEdge in graphEdges)
+        foreach (var sourceEdge in graphEdges)
         {
-            var edgeId = NormalizeToken(graphEdge.EdgeId);
-            var relationType = NormalizeToken(graphEdge.EdgeType);
-            var fromNodeId = NormalizeToken(graphEdge.FromNodeId);
-            var toNodeId = NormalizeToken(graphEdge.ToNodeId);
+            var edgeId = NormalizeToken(sourceEdge.EdgeId);
+            var edgeType = NormalizeToken(sourceEdge.EdgeType);
+            var fromNodeId = NormalizeToken(sourceEdge.FromNodeId);
+            var toNodeId = NormalizeToken(sourceEdge.ToNodeId);
             if (edgeId.Length == 0 ||
-                relationType.Length == 0 ||
+                edgeType.Length == 0 ||
                 fromNodeId.Length == 0 ||
                 toNodeId.Length == 0)
             {
                 continue;
             }
 
-            var properties = new Dictionary<string, string>(graphEdge.Properties, StringComparer.Ordinal)
+            var properties = new Dictionary<string, string>(sourceEdge.Properties, StringComparer.Ordinal)
             {
-                [ProjectionGraphSystemPropertyKeys.ManagedMarkerKey] = ProjectionGraphSystemPropertyKeys.ManagedMarkerValue,
-                [ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey] = ownerId,
+                [ProjectionGraphManagedPropertyKeys.ManagedMarkerKey] = ProjectionGraphManagedPropertyKeys.ManagedMarkerValue,
+                [ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey] = ownerId,
             };
 
             edgesById[edgeId] = new ProjectionGraphEdge
             {
                 Scope = scope,
                 EdgeId = edgeId,
-                EdgeType = relationType,
+                EdgeType = edgeType,
                 FromNodeId = fromNodeId,
                 ToNodeId = toNodeId,
                 Properties = properties,
-                UpdatedAt = graphEdge.UpdatedAt == default ? DateTimeOffset.UtcNow : graphEdge.UpdatedAt,
+                UpdatedAt = sourceEdge.UpdatedAt == default ? DateTimeOffset.UtcNow : sourceEdge.UpdatedAt,
             };
         }
 
         return edgesById.Values.ToList();
     }
 
-    private static string NormalizeToken(string? token) => token?.Trim() ?? "";
+    private static bool IsManagedNode(ProjectionGraphNode node)
+    {
+        return node.Properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedMarkerKey, out var markerValue) &&
+               string.Equals(markerValue, ProjectionGraphManagedPropertyKeys.ManagedMarkerValue, StringComparison.Ordinal);
+    }
+
+    private static bool IsManagedEdge(ProjectionGraphEdge edge)
+    {
+        return edge.Properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedMarkerKey, out var markerValue) &&
+               string.Equals(markerValue, ProjectionGraphManagedPropertyKeys.ManagedMarkerValue, StringComparison.Ordinal);
+    }
+
+    private async Task<bool> CanDeleteNodeAsync(
+        string scope,
+        string nodeId,
+        CancellationToken ct)
+    {
+        if (nodeId.Length == 0)
+            return false;
 
+        var neighbors = await _graphStore.GetNeighborsAsync(
+            new ProjectionGraphQuery
+            {
+                Scope = scope,
+                RootNodeId = nodeId,
+                Direction = ProjectionGraphDirection.Both,
+                EdgeTypes = [],
+                Take = 1,
+            },
+            ct);
+        return neighbors.Count == 0;
+    }
+
+    private static string NormalizeToken(string? token) => token?.Trim() ?? "";
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
deleted file mode 100644
index 3001fc8dc..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreFanout.cs
+++ /dev/null
@@ -1,114 +0,0 @@
-using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Logging.Abstractions;
-
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionGraphStoreFanout : IProjectionGraphStore
-{
-    private readonly IReadOnlyList<IProjectionGraphStore> _stores;
-    private readonly IProjectionGraphStore _queryStore;
-    private readonly string _queryProviderName;
-    private readonly ILogger<ProjectionGraphStoreFanout> _logger;
-
-    public ProjectionGraphStoreFanout(
-        IEnumerable<IProjectionStoreRegistration<IProjectionGraphStore>> registrations,
-        IServiceProvider serviceProvider,
-        ILogger<ProjectionGraphStoreFanout>? logger = null)
-    {
-        ArgumentNullException.ThrowIfNull(registrations);
-        ArgumentNullException.ThrowIfNull(serviceProvider);
-
-        var registrationList = registrations.ToList();
-        _stores = registrationList
-            .Select(x => x.Create(serviceProvider))
-            .ToList();
-        _logger = logger ?? NullLogger<ProjectionGraphStoreFanout>.Instance;
-
-        if (_stores.Count == 0)
-        {
-            throw new InvalidOperationException(
-                "No graph projection store providers are registered.");
-        }
-        _queryStore = _stores[0];
-        _queryProviderName = registrationList[0].ProviderName;
-
-        _logger.LogInformation(
-            "Projection graph fan-out initialized. storeCount={StoreCount} queryProvider={QueryProvider}",
-            _stores.Count,
-            _queryProviderName);
-    }
-
-    public async Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(node);
-        ct.ThrowIfCancellationRequested();
-
-        foreach (var store in _stores)
-        {
-            ct.ThrowIfCancellationRequested();
-            await store.UpsertNodeAsync(node, ct);
-        }
-    }
-
-    public async Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(edge);
-        ct.ThrowIfCancellationRequested();
-
-        foreach (var store in _stores)
-        {
-            ct.ThrowIfCancellationRequested();
-            await store.UpsertEdgeAsync(edge, ct);
-        }
-    }
-
-    public async Task DeleteNodeAsync(string scope, string nodeId, CancellationToken ct = default)
-    {
-        foreach (var store in _stores)
-        {
-            ct.ThrowIfCancellationRequested();
-            await store.DeleteNodeAsync(scope, nodeId, ct);
-        }
-    }
-
-    public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
-    {
-        foreach (var store in _stores)
-        {
-            ct.ThrowIfCancellationRequested();
-            await store.DeleteEdgeAsync(scope, edgeId, ct);
-        }
-    }
-
-    public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
-        string scope,
-        string ownerId,
-        int take = 5000,
-        CancellationToken ct = default)
-    {
-        return _queryStore.ListNodesByOwnerAsync(scope, ownerId, take, ct);
-    }
-
-    public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
-        string scope,
-        string ownerId,
-        int take = 5000,
-        CancellationToken ct = default)
-    {
-        return _queryStore.ListEdgesByOwnerAsync(scope, ownerId, take, ct);
-    }
-
-    public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
-        ProjectionGraphQuery query,
-        CancellationToken ct = default)
-    {
-        return _queryStore.GetNeighborsAsync(query, ct);
-    }
-
-    public Task<ProjectionGraphSubgraph> GetSubgraphAsync(
-        ProjectionGraphQuery query,
-        CancellationToken ct = default)
-    {
-        return _queryStore.GetSubgraphAsync(query, ct);
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs
deleted file mode 100644
index a67661c81..000000000
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionMaterializationRouter.cs
+++ /dev/null
@@ -1,101 +0,0 @@
-using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Logging.Abstractions;
-
-namespace Aevatar.CQRS.Projection.Runtime.Runtime;
-
-public sealed class ProjectionMaterializationRouter<TReadModel, TKey>
-    : IProjectionMaterializationRouter<TReadModel, TKey>
-    where TReadModel : class, IProjectionReadModel
-{
-    private readonly IDocumentProjectionStore<TReadModel, TKey>? _documentStore;
-    private readonly IProjectionGraphMaterializer<TReadModel>? _graphMaterializer;
-    private readonly ILogger<ProjectionMaterializationRouter<TReadModel, TKey>> _logger;
-    private readonly bool _requiresDocumentStore = typeof(IDocumentReadModel).IsAssignableFrom(typeof(TReadModel));
-    private readonly bool _requiresGraphStore = typeof(IGraphReadModel).IsAssignableFrom(typeof(TReadModel));
-
-    public ProjectionMaterializationRouter(
-        IDocumentProjectionStore<TReadModel, TKey>? documentStore = null,
-        IProjectionGraphMaterializer<TReadModel>? graphMaterializer = null,
-        ILogger<ProjectionMaterializationRouter<TReadModel, TKey>>? logger = null)
-    {
-        _documentStore = documentStore;
-        _graphMaterializer = graphMaterializer;
-        _logger = logger ?? NullLogger<ProjectionMaterializationRouter<TReadModel, TKey>>.Instance;
-    }
-
-    public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(readModel);
-        ct.ThrowIfCancellationRequested();
-
-        EnsureStoresReady();
-        if (_requiresDocumentStore)
-            await _documentStore!.UpsertAsync(readModel, ct);
-
-        if (_requiresGraphStore)
-            await _graphMaterializer!.UpsertGraphAsync(readModel, ct);
-    }
-
-    public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
-    {
-        ArgumentNullException.ThrowIfNull(mutate);
-        ct.ThrowIfCancellationRequested();
-
-        EnsureStoresReady();
-        if (_documentStore == null)
-            throw new InvalidOperationException(
-                $"Projection materialization mutate requires a document store for read model '{typeof(TReadModel).FullName}'.");
-
-        await _documentStore.MutateAsync(key, mutate, ct);
-        if (!_requiresGraphStore)
-            return;
-
-        var updated = await _documentStore.GetAsync(key, ct);
-        if (updated == null)
-        {
-            _logger.LogWarning(
-                "Projection materialization graph refresh skipped because the document snapshot is missing. readModelType={ReadModelType}",
-                typeof(TReadModel).FullName);
-            return;
-        }
-
-        await _graphMaterializer!.UpsertGraphAsync(updated, ct);
-    }
-
-    public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
-    {
-        if (_documentStore == null)
-        {
-            throw new InvalidOperationException(
-                $"Projection materialization query requires a document store for read model '{typeof(TReadModel).FullName}'.");
-        }
-
-        return _documentStore.GetAsync(key, ct);
-    }
-
-    public Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
-    {
-        if (_documentStore == null)
-        {
-            throw new InvalidOperationException(
-                $"Projection materialization query requires a document store for read model '{typeof(TReadModel).FullName}'.");
-        }
-
-        return _documentStore.ListAsync(take, ct);
-    }
-
-    private void EnsureStoresReady()
-    {
-        if (_requiresDocumentStore && _documentStore == null)
-        {
-            throw new InvalidOperationException(
-                $"Document capability is required by read model '{typeof(TReadModel).FullName}', but no document projection store is registered.");
-        }
-
-        if (_requiresGraphStore && _graphMaterializer == null)
-        {
-            throw new InvalidOperationException(
-                $"Graph capability is required by read model '{typeof(TReadModel).FullName}', but no graph projection materializer is registered.");
-        }
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
new file mode 100644
index 000000000..3fa293dc5
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
@@ -0,0 +1,94 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class ProjectionStoreDispatcher<TReadModel, TKey>
+    : IProjectionStoreDispatcher<TReadModel, TKey>
+    where TReadModel : class, IProjectionReadModel
+{
+    private readonly IReadOnlyList<IProjectionStoreBinding<TReadModel, TKey>> _bindings;
+    private readonly IReadOnlyList<IProjectionStoreBinding<TReadModel, TKey>> _writeOnlyBindings;
+    private readonly IProjectionQueryableStoreBinding<TReadModel, TKey> _queryBinding;
+    private readonly ILogger<ProjectionStoreDispatcher<TReadModel, TKey>> _logger;
+
+    public ProjectionStoreDispatcher(
+        IEnumerable<IProjectionStoreBinding<TReadModel, TKey>> bindings,
+        ILogger<ProjectionStoreDispatcher<TReadModel, TKey>>? logger = null)
+    {
+        ArgumentNullException.ThrowIfNull(bindings);
+        _logger = logger ?? NullLogger<ProjectionStoreDispatcher<TReadModel, TKey>>.Instance;
+
+        _bindings = bindings.ToList();
+        if (_bindings.Count == 0)
+        {
+            throw new InvalidOperationException(
+                $"No projection store bindings are registered for read model '{typeof(TReadModel).FullName}'.");
+        }
+
+        var queryBindings = _bindings
+            .OfType<IProjectionQueryableStoreBinding<TReadModel, TKey>>()
+            .ToList();
+        if (queryBindings.Count != 1)
+        {
+            throw new InvalidOperationException(
+                $"Exactly one queryable projection store binding is required for read model '{typeof(TReadModel).FullName}', but {queryBindings.Count} were registered.");
+        }
+
+        _queryBinding = queryBindings[0];
+        _writeOnlyBindings = _bindings
+            .Where(x => x is not IProjectionQueryableStoreBinding<TReadModel, TKey>)
+            .ToList();
+
+        _logger.LogInformation(
+            "Projection store dispatcher initialized. readModelType={ReadModelType} bindingCount={BindingCount} queryStore={QueryStore}",
+            typeof(TReadModel).FullName,
+            _bindings.Count,
+            _queryBinding.StoreName);
+    }
+
+    public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(readModel);
+        ct.ThrowIfCancellationRequested();
+
+        foreach (var binding in _bindings)
+        {
+            ct.ThrowIfCancellationRequested();
+            await binding.UpsertAsync(readModel, ct);
+        }
+    }
+
+    public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(mutate);
+        ct.ThrowIfCancellationRequested();
+
+        await _queryBinding.MutateAsync(key, mutate, ct);
+        if (_writeOnlyBindings.Count == 0)
+            return;
+
+        var updated = await _queryBinding.GetAsync(key, ct);
+        if (updated == null)
+        {
+            throw new InvalidOperationException(
+                $"Projection store mutate completed but query store '{_queryBinding.StoreName}' returned null for read model '{typeof(TReadModel).FullName}'.");
+        }
+
+        foreach (var binding in _writeOnlyBindings)
+        {
+            ct.ThrowIfCancellationRequested();
+            await binding.UpsertAsync(updated, ct);
+        }
+    }
+
+    public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
+    {
+        return _queryBinding.GetAsync(key, ct);
+    }
+
+    public Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
+    {
+        return _queryBinding.ListAsync(take, ct);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs
deleted file mode 100644
index 1b580bca8..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphEdgeDescriptor.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public sealed record GraphEdgeDescriptor(
-    string EdgeId,
-    string EdgeType,
-    string FromNodeId,
-    string ToNodeId,
-    IReadOnlyDictionary<string, string> Properties,
-    DateTimeOffset UpdatedAt);
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphNodeDescriptor.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphNodeDescriptor.cs
deleted file mode 100644
index f719b3bb8..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/GraphNodeDescriptor.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public sealed record GraphNodeDescriptor(
-    string NodeId,
-    string NodeType,
-    IReadOnlyDictionary<string, string> Properties,
-    DateTimeOffset UpdatedAt);
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs
deleted file mode 100644
index 093084136..000000000
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentReadModel.cs
+++ /dev/null
@@ -1,3 +0,0 @@
-namespace Aevatar.CQRS.Projection.Stores.Abstractions;
-
-public interface IDocumentReadModel : IProjectionReadModel;
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphReadModel.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphReadModel.cs
index 9a1e725b3..e87026370 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphReadModel.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphReadModel.cs
@@ -4,7 +4,7 @@ public interface IGraphReadModel : IProjectionReadModel
 {
     string GraphScope { get; }
 
-    IReadOnlyList<GraphNodeDescriptor> GraphNodes { get; }
+    IReadOnlyList<ProjectionGraphNode> GraphNodes { get; }
 
-    IReadOnlyList<GraphEdgeDescriptor> GraphEdges { get; }
+    IReadOnlyList<ProjectionGraphEdge> GraphEdges { get; }
 }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs
index 8a2d73235..10c9838ef 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs
@@ -1,7 +1,7 @@
 namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionDocumentMetadataProvider<out TReadModel>
-    where TReadModel : class, IDocumentReadModel
+    where TReadModel : class, IProjectionReadModel
 {
     DocumentIndexMetadata Metadata { get; }
 }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentProjectionStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs
similarity index 87%
rename from src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentProjectionStore.cs
rename to src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs
index 035789d27..5bf50a3cd 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IDocumentProjectionStore.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs
@@ -1,6 +1,6 @@
 namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
-public interface IDocumentProjectionStore<TReadModel, in TKey>
+public interface IProjectionDocumentStore<TReadModel, in TKey>
     where TReadModel : class
 {
     Task UpsertAsync(TReadModel readModel, CancellationToken ct = default);
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
index b073c7532..e43fddbf2 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/README.md
@@ -1,22 +1,18 @@
 # Aevatar.CQRS.Projection.Stores.Abstractions
 
-`Aevatar.CQRS.Projection.Stores.Abstractions` 只包含投影存储能力契约与读模型结构契约。
+`Aevatar.CQRS.Projection.Stores.Abstractions` 仅包含 Projection 存储契约与 ReadModel 结构契约，不包含任何运行时编排或 Provider 选择逻辑。
 
-## 目录结构
+## 契约清单
 
-- `Abstractions/ReadModels`：读模型能力与文档存储契约
-- `Abstractions/Graphs`：图存储契约与图查询模型
+- ReadModel 基础：`IProjectionReadModel`
+- Graph ReadModel：`IGraphReadModel`
+- Document Store：`IProjectionDocumentStore<TReadModel, TKey>`
+- Graph Store：`IProjectionGraphStore`
+- Document 索引元数据：`DocumentIndexMetadata`、`IProjectionDocumentMetadataProvider<TReadModel>`
+- Graph 数据结构：`ProjectionGraphNode`、`ProjectionGraphEdge`、`ProjectionGraphQuery`、`ProjectionGraphSubgraph`
 
-## 包含内容
+## 设计边界
 
-- 读模型存储：`IDocumentProjectionStore<,>`
-- 图存储：`IProjectionGraphStore`
-- ReadModel 能力模型：`IProjectionReadModel`、`IDocumentReadModel`（marker）、`IGraphReadModel`
-- 文档索引元数据声明：`DocumentIndexMetadata`、`IProjectionDocumentMetadataProvider<TReadModel>`；`DocumentIndexMetadata` 使用结构化对象字段（`Mappings/Settings/Aliases`）表达索引元数据。
-- 图结构描述：`GraphNodeDescriptor`、`GraphEdgeDescriptor`
-
-## 约束
-
-1. 不包含 Provider 选择、Factory、Runtime options、Materialization Router 等运行时编排契约。
-2. 不包含投影主链路编排接口（这些在 `Aevatar.CQRS.Projection.Core.Abstractions`）。
-3. 不包含业务模型、DI 装配与具体 provider 实现。
+1. Document 与 Graph 是平行的两类存储契约。
+2. 不包含 Router/Fanout/Factory/ProviderName 选择逻辑。
+3. 不包含业务域实现、DI 装配和具体存储实现。
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
index bfef488f1..56f49fd3b 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs
@@ -5,12 +5,12 @@ namespace Aevatar.Workflow.Projection.Orchestration;
 
 public sealed class WorkflowProjectionQueryReader : IWorkflowProjectionQueryReader
 {
-    private readonly IDocumentProjectionStore<WorkflowExecutionReport, string> _documentStore;
+    private readonly IProjectionDocumentStore<WorkflowExecutionReport, string> _documentStore;
     private readonly IProjectionGraphStore _graphStore;
     private readonly WorkflowExecutionReadModelMapper _mapper;
 
     public WorkflowProjectionQueryReader(
-        IDocumentProjectionStore<WorkflowExecutionReport, string> documentStore,
+        IProjectionDocumentStore<WorkflowExecutionReport, string> documentStore,
         WorkflowExecutionReadModelMapper mapper,
         IProjectionGraphStore graphStore)
     {
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
index 3e994b8a5..476e0c266 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionReadModelUpdater.cs
@@ -5,14 +5,14 @@ namespace Aevatar.Workflow.Projection.Orchestration;
 
 public sealed class WorkflowProjectionReadModelUpdater : IWorkflowProjectionReadModelUpdater
 {
-    private readonly IProjectionMaterializationRouter<WorkflowExecutionReport, string> _materializationRouter;
+    private readonly IProjectionStoreDispatcher<WorkflowExecutionReport, string> _storeDispatcher;
     private readonly IProjectionClock _clock;
 
     public WorkflowProjectionReadModelUpdater(
-        IProjectionMaterializationRouter<WorkflowExecutionReport, string> materializationRouter,
+        IProjectionStoreDispatcher<WorkflowExecutionReport, string> storeDispatcher,
         IProjectionClock clock)
     {
-        _materializationRouter = materializationRouter;
+        _storeDispatcher = storeDispatcher;
         _clock = clock;
     }
 
@@ -22,7 +22,7 @@ public Task RefreshMetadataAsync(
         CancellationToken ct = default)
     {
         var updatedAt = _clock.UtcNow;
-        return _materializationRouter.MutateAsync(actorId, report =>
+        return _storeDispatcher.MutateAsync(actorId, report =>
         {
             report.Id = actorId;
             if (string.IsNullOrWhiteSpace(report.RootActorId))
@@ -45,7 +45,7 @@ public Task MarkStoppedAsync(
         CancellationToken ct = default)
     {
         var updatedAt = _clock.UtcNow;
-        return _materializationRouter.MutateAsync(actorId, report =>
+        return _storeDispatcher.MutateAsync(actorId, report =>
         {
             report.Id = actorId;
             if (string.IsNullOrWhiteSpace(report.RootActorId))
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index fc92a9c8c..5a4cd38f6 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -32,7 +32,7 @@ public Task StartAsync(CancellationToken cancellationToken)
 
         if (_options.ValidateDocumentProviderOnStartup)
         {
-            _ = _serviceProvider.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>();
+            _ = _serviceProvider.GetRequiredService<IProjectionDocumentStore<WorkflowExecutionReport, string>>();
             _logger.LogInformation(
                 "Workflow read-model document startup validation passed. readModelType={ReadModelType}",
                 typeof(WorkflowExecutionReport).FullName);
diff --git a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
index 9e28f8cc6..554a8ed1e 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Projectors/WorkflowExecutionReadModelProjector.cs
@@ -10,18 +10,18 @@ namespace Aevatar.Workflow.Projection.Projectors;
 public sealed class WorkflowExecutionReadModelProjector
     : IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>
 {
-    private readonly IProjectionMaterializationRouter<WorkflowExecutionReport, string> _materializationRouter;
+    private readonly IProjectionStoreDispatcher<WorkflowExecutionReport, string> _storeDispatcher;
     private readonly IEventDeduplicator _deduplicator;
     private readonly IProjectionClock _clock;
     private readonly IReadOnlyDictionary<string, IReadOnlyList<IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>>> _reducersByType;
 
     public WorkflowExecutionReadModelProjector(
-        IProjectionMaterializationRouter<WorkflowExecutionReport, string> materializationRouter,
+        IProjectionStoreDispatcher<WorkflowExecutionReport, string> storeDispatcher,
         IEventDeduplicator deduplicator,
         IProjectionClock clock,
         IEnumerable<IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>> reducers)
     {
-        _materializationRouter = materializationRouter;
+        _storeDispatcher = storeDispatcher;
         _deduplicator = deduplicator;
         _clock = clock;
         _reducersByType = reducers
@@ -51,7 +51,7 @@ public ValueTask InitializeAsync(WorkflowExecutionProjectionContext context, Can
             Input = context.Input,
         };
         report.Summary = new WorkflowExecutionSummary();
-        return new ValueTask(_materializationRouter.UpsertAsync(report, ct));
+        return new ValueTask(_storeDispatcher.UpsertAsync(report, ct));
     }
 
     public async ValueTask ProjectAsync(WorkflowExecutionProjectionContext context, EventEnvelope envelope, CancellationToken ct = default)
@@ -69,7 +69,7 @@ public async ValueTask ProjectAsync(WorkflowExecutionProjectionContext context,
         }
 
         var now = ResolveEventTimestamp(envelope, _clock.UtcNow);
-        await _materializationRouter.MutateAsync(context.RootActorId, report =>
+        await _storeDispatcher.MutateAsync(context.RootActorId, report =>
         {
             report.Id = context.RootActorId;
             if (string.IsNullOrWhiteSpace(report.RootActorId))
@@ -92,7 +92,7 @@ public ValueTask CompleteAsync(
         CancellationToken ct = default)
     {
         var completedAt = _clock.UtcNow;
-        return new ValueTask(_materializationRouter.MutateAsync(context.RootActorId, report =>
+        return new ValueTask(_storeDispatcher.MutateAsync(context.RootActorId, report =>
         {
             report.Id = context.RootActorId;
             if (string.IsNullOrWhiteSpace(report.RootActorId))
diff --git a/src/workflow/Aevatar.Workflow.Projection/README.md b/src/workflow/Aevatar.Workflow.Projection/README.md
index 4b0556ba1..dd0a0dfd9 100644
--- a/src/workflow/Aevatar.Workflow.Projection/README.md
+++ b/src/workflow/Aevatar.Workflow.Projection/README.md
@@ -1,116 +1,47 @@
 # Aevatar.Workflow.Projection
 
-`Aevatar.Workflow.Projection` 是 Workflow 领域的 CQRS 读侧扩展层。
+`Aevatar.Workflow.Projection` 是 Workflow 领域的 CQRS 读侧实现层。
 
-## 职责边界
+## 职责
 
-- 应用层投影端口实现：
-  - `IWorkflowExecutionProjectionLifecyclePort`（`Ensure/Attach/Detach/Release`）
-  - `IWorkflowExecutionProjectionQueryPort`（`Snapshot/Timeline/GraphEdges/GraphSubgraph/GraphEnriched`）
-  - 默认实现分别为 `WorkflowExecutionProjectionLifecycleService` 与 `WorkflowExecutionProjectionQueryService`
-  - 两个实现分别继承 `ProjectionLifecyclePortServiceBase` / `ProjectionQueryPortServiceBase`，通用端口编排已下沉到 `Aevatar.CQRS.Projection.Core`
-- 编排组件拆分（避免单类过重）：
-  - `WorkflowProjectionActivationService`（projection 启动与上下文激活）
-  - `WorkflowProjectionReleaseService`（idle 检测与停止/释放）
-  - `IProjectionOwnershipCoordinator`（ownership acquire/release，由 Core 抽象直接注入）
-  - `WorkflowProjectionSinkSubscriptionManager`（live sink attach/detach/replace）
-  - `WorkflowProjectionLiveSinkForwarder`（sink 推送与失败策略路由）
-  - `WorkflowProjectionSinkFailurePolicy`（sink 异常策略）
-  - `WorkflowProjectionReadModelUpdater`（read model 元信息更新）
-  - `WorkflowProjectionQueryReader`（query 映射读取）
-  - Store Fan-out：Document/Graph 分别一对多广播（无 providerName 单选）
-- 领域上下文：`IWorkflowExecutionProjectionContextFactory`、`WorkflowExecutionProjectionContext`
-- 实时输出契约：`WorkflowRunEvent`、`IWorkflowRunEventSink`、`WorkflowRunEventChannel`（定义于 `Aevatar.Workflow.Application.Abstractions`）
-- 领域投影实现：reducers、projectors、read model（不包含 Provider Store 实现）
-- 领域 DI 组合：`AddWorkflowExecutionProjectionCQRS(...)`
-- Provider 启动校验：由 `WorkflowReadModelStartupValidationHostedService` 执行 Document/Graph 两条独立 fail-fast 校验
-- ReadModel 存储解析规则：运行时通过 `ProjectionDocumentStoreFanout<,>` / `ProjectionGraphStoreFanout` 聚合已注册 Provider
+- Workflow ReadModel 与 Reducer/Projector
+- Projection 生命周期编排（启动、订阅、释放）
+- Query 映射（Snapshot/Timeline/Graph）
+- 与 Runtime Store Dispatcher 集成
 
-本项目依赖：
+## 统一投影链路
 
-- `Aevatar.CQRS.Projection.Core.Abstractions`（投影管线/端口抽象）
-- `Aevatar.CQRS.Projection.Stores.Abstractions`（Document/Graph 存储契约）
-- `Aevatar.CQRS.Projection.Runtime.Abstractions`（Store 注册与 materialization 编排契约）
-- `Aevatar.CQRS.Projection.Core`（通用生命周期/订阅/协调实现）
-- `Aevatar.Foundation.Projection`（最小 read model 基类与读侧能力接口）
-- `Aevatar.Workflow.Extensions.AIProjection`（可选扩展：组合 `Aevatar.AI.Projection` 的通用 reducer/applier）
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+  E["EventEnvelope Stream"] --> C["ProjectionCoordinator"]
+  C --> P["WorkflowExecutionReadModelProjector"]
+  P --> D["IProjectionStoreDispatcher<WorkflowExecutionReport,string>"]
+  D --> DS["ProjectionDocumentStoreBinding -> IProjectionDocumentStore"]
+  D --> GS["ProjectionGraphStoreBinding -> IProjectionGraphStore"]
+  Q["WorkflowProjectionQueryReader"] --> DS
+  Q --> GS
+```
 
-## 统一运行链路
+## 关键约束
 
-1. `EnsureActorProjectionAsync` 由 `WorkflowExecutionProjectionLifecycleService` 转发到 `WorkflowProjectionActivationService`，直接通过 `IProjectionOwnershipCoordinator` 申请 ownership，再创建 projection 上下文并注册 actor stream 订阅
-2. 每条 `EventEnvelope` 进入统一 coordinator，一对多调用已注册 projector
-3. `WorkflowExecutionReadModelProjector` 驱动 reducers 生成并更新 read model，并通过 `IProjectionMaterializationRouter` 执行 Document/Graph 单写或双写
-4. AI 通用事件通过 `Aevatar.Workflow.Extensions.AIProjection` 扩展接入，扩展内部复用 `Aevatar.AI.Projection` 的默认 applier + reducer，将事件写入 `WorkflowExecutionReport` 的 AI 能力字段，业务层无需重复维护映射代码
-5. AGUI 分支与读模型分支共享同一输入事件流；AGUI projector 将 run 输出发布到 `workflow-run:{actorId}:{commandId}` 事件流
+1. `WorkflowExecutionReadModelProjector` 通过 `IProjectionStoreDispatcher` 同步写入 Document + Graph。
+2. Query 来源是 Document Store（`Get/List`）；Graph 用于关系查询与子图遍历。
+3. Document 与 Graph Provider 为平行关系，不存在主从继承关系。
 
-AGUI 输出与 CQRS 读模型共享同一链路，只是在 projector 分支不同。
-应用层通过 `AttachLiveSinkAsync/DetachLiveSinkAsync` 订阅/退订 run-event stream（由 `WorkflowProjectionSinkSubscriptionManager` 承载，sink 写入由 `WorkflowProjectionLiveSinkForwarder` 统一转发）；
-AGUI 分支实现位于 `Aevatar.Workflow.Presentation.AGUIAdapter`。
-`ReleaseActorProjectionAsync` 由 `WorkflowProjectionReleaseService` 在无 live sink 绑定时停止投影并释放协调 Actor ownership；保证同一 `rootActorId` 不会并发启动多个投影视图（release 前由 `WorkflowProjectionReadModelUpdater` 写入 stopped 元信息）。
-run-event 严格按 `EventEnvelope.CorrelationId` 与 commandId 绑定匹配，不对空 correlation 做广播投递。
+## Provider 组合（Host 层）
 
-## 订阅判定规则（事件如何进入 ReadModel）
+- 由 `Aevatar.Workflow.Extensions.Hosting` 装配。
+- 同类 Provider 只允许一个：
+  - Document: `Elasticsearch` 或 `InMemory`
+  - Graph: `Neo4j` 或 `InMemory`
+- 一个 ReadModel 同时写入 Document + Graph（一对多）。
 
-关键区分：
+## 配置
 
-1. `ReadModel` 字段/能力接口（如 `IHasProjectionTimeline`）只表示“可被写入”。
-2. 真正决定“是否订阅某事件”的是 reducer 的 `EventTypeUrl` 声明 + DI 注册。
-3. applier 只负责把已命中的强类型事件写入字段，不负责事件入口匹配。
+- `Projection:Document:Providers:Elasticsearch:Enabled`
+- `Projection:Document:Providers:InMemory:Enabled`
+- `Projection:Graph:Providers:Neo4j:Enabled`
+- `Projection:Graph:Providers:InMemory:Enabled`
+- `Projection:Policies:DenyInMemoryGraphFactStore`
 
-最小落地清单：
-
-1. 定义 ReadModel：声明业务字段与能力接口。
-2. 定义 reducer：实现 `IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>` 并声明 `EventTypeUrl`。
-3. 定义 applier（可选但推荐）：把字段映射逻辑从 reducer 拆出到 `IProjectionEventApplier<,,>`。
-4. DI 注册 reducer/applier：未注册则不会进入投影链路。
-5. projector 在运行时按 `payload.TypeUrl` 命中 `reducersByType`，只执行匹配项。
-
-FAQ：
-
-1. 只有 ReadModel 能处理某事件，就算“定义了事件订阅”吗？不是，必须有 reducer 注册。
-2. 同一个事件能被多个 ReadModel 处理吗？可以，多 projector/多 reducer 并行订阅同一 `EventTypeUrl`。
-3. 一个 ReadModel 能处理多个事件吗？可以，注册多个不同 `EventTypeUrl` 的 reducer 即可。
-
-## 扩展方式
-
-- 新增 reducer：
-  - 实现 `IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>`
-  - 在 DI 中注册
-- 新增事件 applier（推荐）：
-  - 实现 `IProjectionEventApplier<WorkflowExecutionReport, WorkflowExecutionProjectionContext, TEvent>`
-  - 由对应事件 reducer 调用；Foundation/AI 通用事件建议放在对应分层项目，不在 Workflow 层重复实现
-- 新增 projector：
-  - 实现 `IProjectionProjector<WorkflowExecutionProjectionContext, IReadOnlyList<WorkflowExecutionTopologyEdge>>`
-  - 在 DI 中注册
-- 扩展 ReadModel Provider（推荐）：
-  - 文档存储注册：`IProjectionStoreRegistration<IDocumentProjectionStore<WorkflowExecutionReport, string>>`
-  - 图存储注册：`IProjectionStoreRegistration<IProjectionGraphStore>`
-  - 在 Host/Extensions 侧注册（例如 `Aevatar.Workflow.Extensions.Hosting.AddWorkflowProjectionReadModelProviders(...)`）
-  - 通过 `Projection:Document:*` 与 `Projection:Graph:*` 配置选择 Provider
-
-## Provider 配置
-
-- 不再支持 `Projection:Document:Provider` / `Projection:Graph:Provider` 单选模型。
-- 使用一对多启用开关模型：
-  - `Projection:Document:Providers:InMemory:Enabled`
-  - `Projection:Document:Providers:Elasticsearch:Enabled`
-  - `Projection:Graph:Providers:InMemory:Enabled`
-  - `Projection:Graph:Providers:Neo4j:Enabled`
-- 文档 Provider 配置：
-  - `Projection:Document:Providers:Elasticsearch:*`（至少配置 `Endpoints`）
-- 图 Provider 配置：
-  - `Projection:Graph:Providers:Neo4j:*`（至少配置 `Uri`）
-- `Projection:Policies:DenyInMemoryGraphFactStore`：禁用 InMemory graph 作为事实源（生产建议开启）
-- `WorkflowExecutionProjection:ValidateDocumentProviderOnStartup`：启动阶段预校验 document provider（默认 `true`）
-- `WorkflowExecutionProjection:ValidateGraphProviderOnStartup`：启动阶段预校验 graph provider（默认 `true`）
-- 图查询参数：
-  - `/actors/{actorId}/graph-edges` 支持 `direction` 与 `edgeTypes`
-  - `/actors/{actorId}/graph-subgraph` 支持 `direction` 与 `edgeTypes`
-  - `/actors/{actorId}/graph-enriched` 支持 `direction` 与 `edgeTypes`
-- 扩展 run 输出协议：
-  - 保持 `WorkflowRunEvent` 不变，新增 presentation adapter 进行协议映射
-  - 不改 Application 用例编排代码
-
-## 与 API 的关系
-
-`Aevatar.Workflow.Host.Api` 通过 `Aevatar.Workflow.Application` 调用本项目，不直接编排投影内核细节。API 仅负责协议适配（SSE/WebSocket/HTTP Query）。
diff --git a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
index d3c5fca21..cc2c4b09d 100644
--- a/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs
@@ -33,16 +33,15 @@ public sealed class WorkflowExecutionReport
     : AevatarReadModelBase,
       IHasProjectionTimeline,
       IHasProjectionRoleReplies,
-      IDocumentReadModel,
       IGraphReadModel
 {
     private const string UnknownToken = "unknown";
 
     public string GraphScope => WorkflowExecutionGraphConstants.Scope;
 
-    public IReadOnlyList<GraphNodeDescriptor> GraphNodes => BuildGraphNodes();
+    public IReadOnlyList<ProjectionGraphNode> GraphNodes => BuildGraphNodes();
 
-    public IReadOnlyList<GraphEdgeDescriptor> GraphEdges => BuildGraphEdges();
+    public IReadOnlyList<ProjectionGraphEdge> GraphEdges => BuildGraphEdges();
 
     public string RootActorId { get; set; } = "";
     public string CommandId { get; set; } = "";
@@ -95,41 +94,49 @@ public void AddRoleReply(ProjectionRoleReply roleReply)
         });
     }
 
-    private IReadOnlyList<GraphNodeDescriptor> BuildGraphNodes()
+    private IReadOnlyList<ProjectionGraphNode> BuildGraphNodes()
     {
         var updatedAt = UpdatedAt == default ? DateTimeOffset.UtcNow : UpdatedAt;
         var rootActorId = NormalizeToken(RootActorId);
         var runNodeId = BuildRunNodeId(rootActorId, CommandId);
-        var nodes = new Dictionary<string, GraphNodeDescriptor>(StringComparer.Ordinal);
+        var nodes = new Dictionary<string, ProjectionGraphNode>(StringComparer.Ordinal);
 
-        nodes[rootActorId] = new GraphNodeDescriptor(
-            rootActorId,
-            WorkflowExecutionGraphConstants.ActorNodeType,
-            new Dictionary<string, string>(StringComparer.Ordinal)
+        nodes[rootActorId] = new ProjectionGraphNode
+        {
+            Scope = GraphScope,
+            NodeId = rootActorId,
+            NodeType = WorkflowExecutionGraphConstants.ActorNodeType,
+            Properties = new Dictionary<string, string>(StringComparer.Ordinal)
             {
                 ["workflowName"] = WorkflowName ?? "",
             },
-            updatedAt);
+            UpdatedAt = updatedAt,
+        };
 
-        nodes[runNodeId] = new GraphNodeDescriptor(
-            runNodeId,
-            WorkflowExecutionGraphConstants.RunNodeType,
-            new Dictionary<string, string>(StringComparer.Ordinal)
+        nodes[runNodeId] = new ProjectionGraphNode
+        {
+            Scope = GraphScope,
+            NodeId = runNodeId,
+            NodeType = WorkflowExecutionGraphConstants.RunNodeType,
+            Properties = new Dictionary<string, string>(StringComparer.Ordinal)
             {
                 ["rootActorId"] = rootActorId,
                 ["workflowName"] = WorkflowName ?? "",
                 ["commandId"] = NormalizeToken(CommandId),
                 ["input"] = Input ?? "",
             },
-            updatedAt);
+            UpdatedAt = updatedAt,
+        };
 
         foreach (var step in Steps)
         {
             var stepNodeId = BuildStepNodeId(rootActorId, CommandId, step.StepId);
-            nodes[stepNodeId] = new GraphNodeDescriptor(
-                stepNodeId,
-                WorkflowExecutionGraphConstants.StepNodeType,
-                new Dictionary<string, string>(StringComparer.Ordinal)
+            nodes[stepNodeId] = new ProjectionGraphNode
+            {
+                Scope = GraphScope,
+                NodeId = stepNodeId,
+                NodeType = WorkflowExecutionGraphConstants.StepNodeType,
+                Properties = new Dictionary<string, string>(StringComparer.Ordinal)
                 {
                     ["rootActorId"] = rootActorId,
                     ["commandId"] = NormalizeToken(CommandId),
@@ -139,7 +146,8 @@ private IReadOnlyList<GraphNodeDescriptor> BuildGraphNodes()
                     ["workerId"] = step.WorkerId ?? "",
                     ["success"] = step.Success?.ToString() ?? "",
                 },
-                updatedAt);
+                UpdatedAt = updatedAt,
+            };
         }
 
         foreach (var topologyEdge in Topology)
@@ -148,38 +156,44 @@ private IReadOnlyList<GraphNodeDescriptor> BuildGraphNodes()
             var childId = NormalizeToken(topologyEdge.Child);
             if (parentId.Length > 0 && !nodes.ContainsKey(parentId))
             {
-                nodes[parentId] = new GraphNodeDescriptor(
-                    parentId,
-                    WorkflowExecutionGraphConstants.ActorNodeType,
-                    new Dictionary<string, string>(StringComparer.Ordinal)
+                nodes[parentId] = new ProjectionGraphNode
+                {
+                    Scope = GraphScope,
+                    NodeId = parentId,
+                    NodeType = WorkflowExecutionGraphConstants.ActorNodeType,
+                    Properties = new Dictionary<string, string>(StringComparer.Ordinal)
                     {
                         ["workflowName"] = WorkflowName ?? "",
                     },
-                    updatedAt);
+                    UpdatedAt = updatedAt,
+                };
             }
 
             if (childId.Length > 0 && !nodes.ContainsKey(childId))
             {
-                nodes[childId] = new GraphNodeDescriptor(
-                    childId,
-                    WorkflowExecutionGraphConstants.ActorNodeType,
-                    new Dictionary<string, string>(StringComparer.Ordinal)
+                nodes[childId] = new ProjectionGraphNode
+                {
+                    Scope = GraphScope,
+                    NodeId = childId,
+                    NodeType = WorkflowExecutionGraphConstants.ActorNodeType,
+                    Properties = new Dictionary<string, string>(StringComparer.Ordinal)
                     {
                         ["workflowName"] = WorkflowName ?? "",
                     },
-                    updatedAt);
+                    UpdatedAt = updatedAt,
+                };
             }
         }
 
         return nodes.Values.ToList();
     }
 
-    private IReadOnlyList<GraphEdgeDescriptor> BuildGraphEdges()
+    private IReadOnlyList<ProjectionGraphEdge> BuildGraphEdges()
     {
         var updatedAt = UpdatedAt == default ? DateTimeOffset.UtcNow : UpdatedAt;
         var rootActorId = NormalizeToken(RootActorId);
         var runNodeId = BuildRunNodeId(rootActorId, CommandId);
-        var edges = new Dictionary<string, GraphEdgeDescriptor>(StringComparer.Ordinal);
+        var edges = new Dictionary<string, ProjectionGraphEdge>(StringComparer.Ordinal);
 
         var ownsEdge = CreateEdge(
             WorkflowExecutionGraphConstants.EdgeTypeOwns,
@@ -224,7 +238,7 @@ private IReadOnlyList<GraphEdgeDescriptor> BuildGraphEdges()
         return edges.Values.ToList();
     }
 
-    private static GraphEdgeDescriptor CreateEdge(
+    private ProjectionGraphEdge CreateEdge(
         string relationType,
         string fromNodeId,
         string toNodeId,
@@ -235,13 +249,16 @@ private static GraphEdgeDescriptor CreateEdge(
         var normalizedToNodeId = NormalizeToken(toNodeId);
         var normalizedEdgeType = NormalizeToken(relationType);
         var edgeId = BuildEdgeId(normalizedEdgeType, normalizedFromNodeId, normalizedToNodeId);
-        return new GraphEdgeDescriptor(
-            edgeId,
-            normalizedEdgeType,
-            normalizedFromNodeId,
-            normalizedToNodeId,
-            new Dictionary<string, string>(properties, StringComparer.Ordinal),
-            updatedAt);
+        return new ProjectionGraphEdge
+        {
+            Scope = GraphScope,
+            EdgeId = edgeId,
+            EdgeType = normalizedEdgeType,
+            FromNodeId = normalizedFromNodeId,
+            ToNodeId = normalizedToNodeId,
+            Properties = new Dictionary<string, string>(properties, StringComparer.Ordinal),
+            UpdatedAt = updatedAt,
+        };
     }
 
     private static string BuildRunNodeId(string rootActorId, string commandId)
diff --git a/src/workflow/README.md b/src/workflow/README.md
index a0876bd62..2cd2f7c23 100644
--- a/src/workflow/README.md
+++ b/src/workflow/README.md
@@ -109,7 +109,7 @@ flowchart LR
 
   RM["WorkflowExecutionReadModelProjector"]
   RED["Reducers(Start/Step/TextEnd/Completed)"]
-  STORE["IProjectionReadModelStore(WorkflowExecutionReport)"]
+  STORE["IProjectionStoreDispatcher + IProjectionDocumentStore + IProjectionGraphStore"]
 
   AGP["WorkflowExecutionAGUIEventProjector"]
   MAP["EventEnvelopeToAGUIEventMapper + Handlers"]
@@ -195,7 +195,7 @@ sequenceDiagram
   participant Stream as "Actor Stream(EventEnvelope)"
   participant Dispatcher as "ProjectionDispatcher"
   participant Projector as "WorkflowExecutionReadModelProjector"
-  participant Store as "IProjectionReadModelStore"
+  participant Store as "IProjectionDocumentStore"
   participant Query as "IWorkflowExecutionQueryApplicationService"
   participant Api as "GET /api/actors/{actorId}"
 
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj
index 09ff66b15..604aed408 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj
@@ -8,6 +8,7 @@
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Runtime.Abstractions\Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
+    <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
     <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
     <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Providers.InMemory\Aevatar.CQRS.Projection.Providers.InMemory.csproj" />
     <ProjectReference Include="..\..\..\Aevatar.CQRS.Projection.Providers.Neo4j\Aevatar.CQRS.Projection.Providers.Neo4j.csproj" />
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index be0c7c51f..6e27e9fb4 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -4,6 +4,7 @@
 using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
 using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
 using Aevatar.CQRS.Projection.Runtime.Abstractions;
+using Aevatar.CQRS.Projection.Runtime.Runtime;
 using Aevatar.Workflow.Projection.ReadModels;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
@@ -37,10 +38,23 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
 
         EnforceGraphProviderPolicy(configuration, enableInMemoryGraph);
 
-        var documentProviderCount = 0;
+        var documentProviderCount = (enableElasticsearchDocument ? 1 : 0) + (enableInMemoryDocument ? 1 : 0);
+        if (documentProviderCount != 1)
+        {
+            throw new InvalidOperationException(
+                "Exactly one document projection provider must be enabled. Configure either Projection:Document:Providers:Elasticsearch:Enabled=true or Projection:Document:Providers:InMemory:Enabled=true.");
+        }
+
+        var graphProviderCount = (enableNeo4jGraph ? 1 : 0) + (enableInMemoryGraph ? 1 : 0);
+        if (graphProviderCount != 1)
+        {
+            throw new InvalidOperationException(
+                "Exactly one graph projection provider must be enabled. Configure either Projection:Graph:Providers:Neo4j:Enabled=true or Projection:Graph:Providers:InMemory:Enabled=true.");
+        }
+
         if (enableElasticsearchDocument)
         {
-            services.AddElasticsearchDocumentStoreRegistration<WorkflowExecutionReport, string>(
+            services.AddElasticsearchDocumentProjectionStore<WorkflowExecutionReport, string>(
                 optionsFactory: _ => BuildElasticsearchDocumentOptions(configuration),
                 metadataFactory: sp =>
                 {
@@ -49,45 +63,28 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
                 },
                 keySelector: report => report.RootActorId,
                 keyFormatter: key => key);
-            documentProviderCount++;
         }
-
-        if (enableInMemoryDocument)
+        else
         {
-            services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
+            services.AddInMemoryDocumentProjectionStore<WorkflowExecutionReport, string>(
                 keySelector: report => report.RootActorId,
                 keyFormatter: key => key,
                 listSortSelector: report => report.CreatedAt,
                 listTakeMax: 200);
-            documentProviderCount++;
         }
 
-        var graphProviderCount = 0;
         if (enableNeo4jGraph)
         {
-            services.AddNeo4jGraphStoreRegistration(
+            services.AddNeo4jGraphProjectionStore(
                 optionsFactory: _ => BuildNeo4jGraphOptions(configuration),
                 scopeFactory: _ => WorkflowExecutionGraphConstants.Scope);
-            graphProviderCount++;
         }
-
-        if (enableInMemoryGraph)
-        {
-            services.AddInMemoryGraphStoreRegistration();
-            graphProviderCount++;
-        }
-
-        if (documentProviderCount == 0)
+        else
         {
-            throw new InvalidOperationException(
-                "No document projection providers are enabled. Configure Projection:Document:Providers:InMemory:Enabled=true or Projection:Document:Providers:Elasticsearch with Endpoints.");
+            services.AddInMemoryGraphProjectionStore();
         }
 
-        if (graphProviderCount == 0)
-        {
-            throw new InvalidOperationException(
-                "No graph projection providers are enabled. Configure Projection:Graph:Providers:InMemory:Enabled=true or Projection:Graph:Providers:Neo4j with Uri.");
-        }
+        services.AddSingleton<IProjectionStoreBinding<WorkflowExecutionReport, string>, ProjectionGraphStoreBinding<WorkflowExecutionReport, string>>();
 
         return services;
     }
@@ -101,7 +98,7 @@ private static void EnsureLegacyProviderOptionsNotUsed(IConfiguration configurat
         {
             throw new InvalidOperationException(
                 "Legacy provider single-selection options are no longer supported. " +
-                "Use Projection:Document:Providers:*:Enabled and Projection:Graph:Providers:*:Enabled for one-to-many provider registration.");
+                "Use Projection:Document:Providers:*:Enabled and Projection:Graph:Providers:*:Enabled with exactly one provider enabled per store type.");
         }
     }
 
@@ -127,10 +124,10 @@ private static bool ResolveNeo4jGraphEnabled(IConfiguration configuration)
         return ResolveOptionalBool(explicitEnabled, hasUri);
     }
 
-    private static ElasticsearchProjectionReadModelStoreOptions BuildElasticsearchDocumentOptions(
+    private static ElasticsearchProjectionDocumentStoreOptions BuildElasticsearchDocumentOptions(
         IConfiguration configuration)
     {
-        var options = new ElasticsearchProjectionReadModelStoreOptions();
+        var options = new ElasticsearchProjectionDocumentStoreOptions();
         configuration.GetSection("Projection:Document:Providers:Elasticsearch").Bind(options);
         if (options.Endpoints.Count == 0)
         {
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionDocumentStoreBehaviorTests.cs
similarity index 92%
rename from test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
rename to test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionDocumentStoreBehaviorTests.cs
index dafee1efb..fa031f654 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionReadModelStoreBehaviorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionDocumentStoreBehaviorTests.cs
@@ -6,7 +6,7 @@
 
 namespace Aevatar.CQRS.Projection.Core.Tests;
 
-public sealed class ElasticsearchProjectionReadModelStoreBehaviorTests
+public sealed class ElasticsearchProjectionDocumentStoreBehaviorTests
 {
     [Fact]
     public async Task GetAsync_WhenIndexMissingAndAutoCreateDisabled_ShouldThrowByDefault()
@@ -17,7 +17,7 @@ public async Task GetAsync_WhenIndexMissingAndAutoCreateDisabled_ShouldThrowByDe
             """{"error":{"type":"index_not_found_exception"},"status":404}"""));
 
         using var store = CreateStore(
-            new ElasticsearchProjectionReadModelStoreOptions
+            new ElasticsearchProjectionDocumentStoreOptions
             {
                 AutoCreateIndex = false,
             },
@@ -38,7 +38,7 @@ public async Task GetAsync_WhenIndexMissingAndWarnBehaviorEnabled_ShouldReturnNu
             """{"error":{"type":"index_not_found_exception"},"status":404}"""));
 
         using var store = CreateStore(
-            new ElasticsearchProjectionReadModelStoreOptions
+            new ElasticsearchProjectionDocumentStoreOptions
             {
                 AutoCreateIndex = false,
                 MissingIndexBehavior = ElasticsearchMissingIndexBehavior.WarnAndReturnEmpty,
@@ -59,7 +59,7 @@ public async Task ListAsync_WhenSortFieldNotConfigured_ShouldUseDeterministicDef
             """{"hits":{"hits":[]}}"""));
 
         using var store = CreateStore(
-            new ElasticsearchProjectionReadModelStoreOptions
+            new ElasticsearchProjectionDocumentStoreOptions
             {
                 AutoCreateIndex = false,
                 ListSortField = "",
@@ -93,7 +93,7 @@ public async Task MutateAsync_WhenOptimisticConflictOccurs_ShouldRetryWithLatest
             """{"result":"updated"}"""));
 
         using var store = CreateStore(
-            new ElasticsearchProjectionReadModelStoreOptions
+            new ElasticsearchProjectionDocumentStoreOptions
             {
                 AutoCreateIndex = false,
                 MutateMaxRetryCount = 1,
@@ -121,13 +121,13 @@ public async Task UpsertAsync_WhenMetadataContainsStructuredObjects_ShouldSendSt
             HttpStatusCode.OK,
             """{"result":"created"}"""));
 
-        var options = new ElasticsearchProjectionReadModelStoreOptions
+        var options = new ElasticsearchProjectionDocumentStoreOptions
         {
             AutoCreateIndex = true,
         };
         options.Endpoints = ["http://localhost:9200"];
 
-        using var store = new ElasticsearchProjectionReadModelStore<StoreReadModel, string>(
+        using var store = new ElasticsearchProjectionDocumentStore<StoreReadModel, string>(
             options,
             new DocumentIndexMetadata(
                 IndexName: "projection-core-tests",
@@ -177,12 +177,12 @@ await store.UpsertAsync(new StoreReadModel
         handler.CapturedRequests[0].Body.Should().Contain("\"is_write_index\":true");
     }
 
-    private static ElasticsearchProjectionReadModelStore<StoreReadModel, string> CreateStore(
-        ElasticsearchProjectionReadModelStoreOptions options,
+    private static ElasticsearchProjectionDocumentStore<StoreReadModel, string> CreateStore(
+        ElasticsearchProjectionDocumentStoreOptions options,
         HttpMessageHandler handler)
     {
         options.Endpoints = ["http://localhost:9200"];
-        return new ElasticsearchProjectionReadModelStore<StoreReadModel, string>(
+        return new ElasticsearchProjectionDocumentStore<StoreReadModel, string>(
             options,
             new DocumentIndexMetadata(
                 IndexName: "projection-core-tests",
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphStoreBindingTests.cs
similarity index 71%
rename from test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs
rename to test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphStoreBindingTests.cs
index 58a20d1cd..18eb0c419 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphMaterializerTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphStoreBindingTests.cs
@@ -3,15 +3,15 @@
 
 namespace Aevatar.CQRS.Projection.Core.Tests;
 
-public class ProjectionGraphMaterializerTests
+public class ProjectionGraphStoreBindingTests
 {
     [Fact]
-    public async Task UpsertGraphAsync_ShouldRemoveDisconnectedStaleEdgesForSameOwner()
+    public async Task UpsertAsync_ShouldRemoveDisconnectedStaleEdgesForSameOwner()
     {
         var store = new RecordingGraphStore();
-        var materializer = new ProjectionGraphMaterializer<TestGraphReadModel>(store);
+        var binding = new ProjectionGraphStoreBinding<TestGraphReadModel, string>(store);
 
-        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        await binding.UpsertAsync(new TestGraphReadModel
         {
             Id = "owner-1",
             GraphScope = "scope-1",
@@ -29,7 +29,7 @@ await materializer.UpsertGraphAsync(new TestGraphReadModel
             ],
         });
 
-        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        await binding.UpsertAsync(new TestGraphReadModel
         {
             Id = "owner-1",
             GraphScope = "scope-1",
@@ -66,12 +66,12 @@ await materializer.UpsertGraphAsync(new TestGraphReadModel
     }
 
     [Fact]
-    public async Task UpsertGraphAsync_ShouldNotDeleteEdgesOwnedByAnotherReadModel()
+    public async Task UpsertAsync_ShouldNotDeleteEdgesOwnedByAnotherReadModel()
     {
         var store = new RecordingGraphStore();
-        var materializer = new ProjectionGraphMaterializer<TestGraphReadModel>(store);
+        var binding = new ProjectionGraphStoreBinding<TestGraphReadModel, string>(store);
 
-        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        await binding.UpsertAsync(new TestGraphReadModel
         {
             Id = "owner-1",
             GraphScope = "scope-1",
@@ -86,7 +86,7 @@ await materializer.UpsertGraphAsync(new TestGraphReadModel
             ],
         });
 
-        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        await binding.UpsertAsync(new TestGraphReadModel
         {
             Id = "owner-2",
             GraphScope = "scope-1",
@@ -101,7 +101,7 @@ await materializer.UpsertGraphAsync(new TestGraphReadModel
             ],
         });
 
-        await materializer.UpsertGraphAsync(new TestGraphReadModel
+        await binding.UpsertAsync(new TestGraphReadModel
         {
             Id = "owner-1",
             GraphScope = "scope-1",
@@ -135,115 +135,12 @@ await materializer.UpsertGraphAsync(new TestGraphReadModel
     }
 
     [Fact]
-    public async Task UpsertGraphAsync_ShouldRemoveDisconnectedStaleNodesForSameOwner()
+    public async Task UpsertAsync_WhenReadModelIdIsEmpty_ShouldThrow()
     {
         var store = new RecordingGraphStore();
-        var materializer = new ProjectionGraphMaterializer<TestGraphReadModel>(store);
+        var binding = new ProjectionGraphStoreBinding<TestGraphReadModel, string>(store);
 
-        await materializer.UpsertGraphAsync(new TestGraphReadModel
-        {
-            Id = "owner-1",
-            GraphScope = "scope-1",
-            GraphNodes =
-            [
-                Node("root"),
-                Node("left"),
-                Node("orphan-a"),
-                Node("orphan-b"),
-            ],
-            GraphEdges =
-            [
-                Edge("edge-root", "root", "left"),
-                Edge("edge-orphan", "orphan-a", "orphan-b"),
-            ],
-        });
-
-        await materializer.UpsertGraphAsync(new TestGraphReadModel
-        {
-            Id = "owner-1",
-            GraphScope = "scope-1",
-            GraphNodes =
-            [
-                Node("root"),
-                Node("left"),
-            ],
-            GraphEdges =
-            [
-                Edge("edge-root", "root", "left"),
-            ],
-        });
-
-        var ownerNodes = await store.ListNodesByOwnerAsync("scope-1", BuildOwnerId("owner-1"), take: 20);
-
-        ownerNodes.Select(x => x.NodeId).Should().BeEquivalentTo("root", "left");
-        store.ContainsNode("scope-1", "orphan-a").Should().BeFalse();
-        store.ContainsNode("scope-1", "orphan-b").Should().BeFalse();
-    }
-
-    [Fact]
-    public async Task UpsertGraphAsync_ShouldKeepStaleNodeWhenStillReferencedByAnotherOwner()
-    {
-        var store = new RecordingGraphStore();
-        var materializer = new ProjectionGraphMaterializer<TestGraphReadModel>(store);
-
-        await materializer.UpsertGraphAsync(new TestGraphReadModel
-        {
-            Id = "owner-1",
-            GraphScope = "scope-1",
-            GraphNodes =
-            [
-                Node("shared"),
-                Node("owner-1-node"),
-            ],
-            GraphEdges =
-            [
-                Edge("edge-owner-1", "shared", "owner-1-node"),
-            ],
-        });
-
-        await materializer.UpsertGraphAsync(new TestGraphReadModel
-        {
-            Id = "owner-2",
-            GraphScope = "scope-1",
-            GraphNodes =
-            [
-                Node("owner-2-node"),
-            ],
-            GraphEdges =
-            [
-                Edge("edge-owner-2", "shared", "owner-2-node"),
-            ],
-        });
-
-        await materializer.UpsertGraphAsync(new TestGraphReadModel
-        {
-            Id = "owner-1",
-            GraphScope = "scope-1",
-            GraphNodes = [],
-            GraphEdges = [],
-        });
-
-        var sharedNeighbors = await store.GetNeighborsAsync(new ProjectionGraphQuery
-        {
-            Scope = "scope-1",
-            RootNodeId = "shared",
-            Direction = ProjectionGraphDirection.Both,
-            EdgeTypes = [],
-            Take = 20,
-        });
-
-        sharedNeighbors.Select(x => x.EdgeId).Should().ContainSingle("edge-owner-2");
-        store.ContainsNode("scope-1", "shared").Should().BeTrue();
-        store.ContainsNode("scope-1", "owner-1-node").Should().BeFalse();
-    }
-
-    [Fact]
-    public async Task UpsertGraphAsync_WhenReadModelIdIsEmpty_ShouldThrow()
-    {
-        var store = new RecordingGraphStore();
-        var materializer = new ProjectionGraphMaterializer<TestGraphReadModel>(store);
-
-        Func<Task> act = () => materializer.UpsertGraphAsync(new TestGraphReadModel
+        Func<Task> act = () => binding.UpsertAsync(new TestGraphReadModel
         {
             Id = "",
             GraphScope = "scope-1",
@@ -260,24 +157,30 @@ await act.Should().ThrowAsync<InvalidOperationException>()
 
     private static string BuildOwnerId(string id) => $"{typeof(TestGraphReadModel).FullName}:{id}";
 
-    private static GraphNodeDescriptor Node(string nodeId)
+    private static ProjectionGraphNode Node(string nodeId)
     {
-        return new GraphNodeDescriptor(
-            nodeId,
-            "Actor",
-            new Dictionary<string, string>(StringComparer.Ordinal),
-            DateTimeOffset.UtcNow);
+        return new ProjectionGraphNode
+        {
+            Scope = "scope-1",
+            NodeId = nodeId,
+            NodeType = "Actor",
+            Properties = new Dictionary<string, string>(StringComparer.Ordinal),
+            UpdatedAt = DateTimeOffset.UtcNow,
+        };
     }
 
-    private static GraphEdgeDescriptor Edge(string edgeId, string fromNodeId, string toNodeId)
+    private static ProjectionGraphEdge Edge(string edgeId, string fromNodeId, string toNodeId)
     {
-        return new GraphEdgeDescriptor(
-            edgeId,
-            "LINK",
-            fromNodeId,
-            toNodeId,
-            new Dictionary<string, string>(StringComparer.Ordinal),
-            DateTimeOffset.UtcNow);
+        return new ProjectionGraphEdge
+        {
+            Scope = "scope-1",
+            EdgeId = edgeId,
+            EdgeType = "LINK",
+            FromNodeId = fromNodeId,
+            ToNodeId = toNodeId,
+            Properties = new Dictionary<string, string>(StringComparer.Ordinal),
+            UpdatedAt = DateTimeOffset.UtcNow,
+        };
     }
 
     private sealed class TestGraphReadModel : IGraphReadModel
@@ -286,9 +189,9 @@ private sealed class TestGraphReadModel : IGraphReadModel
 
         public string GraphScope { get; init; } = "";
 
-        public IReadOnlyList<GraphNodeDescriptor> GraphNodes { get; init; } = [];
+        public IReadOnlyList<ProjectionGraphNode> GraphNodes { get; init; } = [];
 
-        public IReadOnlyList<GraphEdgeDescriptor> GraphEdges { get; init; } = [];
+        public IReadOnlyList<ProjectionGraphEdge> GraphEdges { get; init; } = [];
     }
 
     private sealed class RecordingGraphStore : IProjectionGraphStore
@@ -347,7 +250,7 @@ public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
                 edges = _edges.Values
                     .Where(x => string.Equals(x.Scope, scopeValue, StringComparison.Ordinal))
                     .Where(x =>
-                        x.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey, out var edgeOwnerId) &&
+                        x.Properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var edgeOwnerId) &&
                         string.Equals(NormalizeToken(edgeOwnerId), ownerValue, StringComparison.Ordinal))
                     .OrderByDescending(x => x.UpdatedAt)
                     .Take(Math.Clamp(take, 1, 50000))
@@ -376,7 +279,7 @@ public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
                 nodes = _nodes.Values
                     .Where(x => string.Equals(x.Scope, scopeValue, StringComparison.Ordinal))
                     .Where(x =>
-                        x.Properties.TryGetValue(ProjectionGraphSystemPropertyKeys.ManagedOwnerIdKey, out var nodeOwnerId) &&
+                        x.Properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var nodeOwnerId) &&
                         string.Equals(NormalizeToken(nodeOwnerId), ownerValue, StringComparison.Ordinal))
                     .OrderByDescending(x => x.UpdatedAt)
                     .Take(Math.Clamp(take, 1, 50000))
@@ -457,12 +360,6 @@ public async Task<ProjectionGraphSubgraph> GetSubgraphAsync(
             };
         }
 
-        public bool ContainsNode(string scope, string nodeId)
-        {
-            lock (_gate)
-                return _nodes.ContainsKey(BuildScopedKey(scope, nodeId));
-        }
-
         private static bool MatchDirection(ProjectionGraphEdge edge, string rootNodeId, ProjectionGraphDirection direction)
         {
             return direction switch
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
index f6fca9cea..280e7829f 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
@@ -10,7 +10,7 @@ public sealed class ProjectionProviderE2EIntegrationTests
     public async Task ElasticsearchStore_ShouldRoundtripUpsertAndMutate()
     {
         var endpoint = GetRequiredEnvironmentVariable("AEVATAR_TEST_ELASTICSEARCH_ENDPOINT");
-        var options = new ElasticsearchProjectionReadModelStoreOptions
+        var options = new ElasticsearchProjectionDocumentStoreOptions
         {
             Endpoints = [endpoint],
             IndexPrefix = "aevatar-e2e",
@@ -18,7 +18,7 @@ public async Task ElasticsearchStore_ShouldRoundtripUpsertAndMutate()
             RequestTimeoutMs = 10000,
         };
         var indexScope = "projection-provider-e2e-" + Guid.NewGuid().ToString("N");
-        using var store = new ElasticsearchProjectionReadModelStore<ProviderStoreSmokeReadModel, string>(
+        using var store = new ElasticsearchProjectionDocumentStore<ProviderStoreSmokeReadModel, string>(
             options,
             new DocumentIndexMetadata(
                 IndexName: indexScope,
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
deleted file mode 100644
index 0d2fff30a..000000000
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelRuntimeTests.cs
+++ /dev/null
@@ -1,148 +0,0 @@
-using Aevatar.CQRS.Projection.Runtime.Runtime;
-using FluentAssertions;
-using Microsoft.Extensions.DependencyInjection;
-
-namespace Aevatar.CQRS.Projection.Core.Tests;
-
-public class ProjectionReadModelRuntimeTests
-{
-    [Fact]
-    public async Task ProjectionDocumentStoreFanout_ShouldFanoutWritesAndUseFirstRegisteredQueryStore()
-    {
-        var queryStore = new NamedDocumentStore("query");
-        var replicaStore = new NamedDocumentStore("replica");
-        var services = new ServiceCollection();
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "query",
-                _ => queryStore));
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "replica",
-                _ => replicaStore));
-
-        using var serviceProvider = services.BuildServiceProvider();
-        var fanout = new ProjectionDocumentStoreFanout<TestReadModel, string>(
-            serviceProvider.GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(),
-            serviceProvider);
-
-        var model = new TestReadModel
-        {
-            Id = "id-1",
-            Value = "v1",
-        };
-
-        await fanout.UpsertAsync(model);
-
-        queryStore.UpsertCount.Should().Be(1);
-        replicaStore.UpsertCount.Should().Be(1);
-
-        var fetched = await fanout.GetAsync("id-1");
-        fetched.Should().NotBeNull();
-        fetched!.Value.Should().Be("v1");
-    }
-
-    [Fact]
-    public async Task ProjectionDocumentStoreFanout_ShouldReadFromFirstRegistration_WhenOrderDiffers()
-    {
-        var firstStore = new NamedDocumentStore("first");
-        var secondStore = new NamedDocumentStore("second");
-        firstStore.Seed("id-1", "from-first");
-        secondStore.Seed("id-1", "from-second");
-
-        var services = new ServiceCollection();
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "first",
-                _ => firstStore));
-        services.AddSingleton<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(
-            new DelegateProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>(
-                "second",
-                _ => secondStore));
-
-        using var serviceProvider = services.BuildServiceProvider();
-        var fanout = new ProjectionDocumentStoreFanout<TestReadModel, string>(
-            serviceProvider.GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<TestReadModel, string>>>(),
-            serviceProvider);
-
-        var fetched = await fanout.GetAsync("id-1");
-
-        fetched.Should().NotBeNull();
-        fetched!.Value.Should().Be("from-first");
-    }
-
-    [Fact]
-    public void ProjectionDocumentStoreFanout_WhenNoRegistrations_ShouldThrow()
-    {
-        var services = new ServiceCollection();
-        using var serviceProvider = services.BuildServiceProvider();
-
-        Action act = () => new ProjectionDocumentStoreFanout<TestReadModel, string>(
-            [],
-            serviceProvider);
-
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*No document projection store providers are registered*");
-    }
-
-    public sealed class TestReadModel
-    {
-        public string Id { get; set; } = "";
-
-        public string Value { get; set; } = "";
-    }
-
-    private sealed class NamedDocumentStore : IDocumentProjectionStore<TestReadModel, string>
-    {
-        private readonly Dictionary<string, TestReadModel> _models = new(StringComparer.Ordinal);
-
-        public NamedDocumentStore(string providerName)
-        {
-            ProviderName = providerName;
-        }
-
-        public string ProviderName { get; }
-
-        public int UpsertCount { get; private set; }
-
-        public void Seed(string key, string value)
-        {
-            _models[key] = new TestReadModel
-            {
-                Id = key,
-                Value = value,
-            };
-        }
-
-        public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default)
-        {
-            _models[readModel.Id] = new TestReadModel
-            {
-                Id = readModel.Id,
-                Value = readModel.Value,
-            };
-            UpsertCount++;
-            return Task.CompletedTask;
-        }
-
-        public Task MutateAsync(string key, Action<TestReadModel> mutate, CancellationToken ct = default)
-        {
-            if (!_models.TryGetValue(key, out var existing))
-                throw new InvalidOperationException($"Missing key '{key}'.");
-
-            mutate(existing);
-            return Task.CompletedTask;
-        }
-
-        public Task<TestReadModel?> GetAsync(string key, CancellationToken ct = default)
-        {
-            _models.TryGetValue(key, out var value);
-            return Task.FromResult<TestReadModel?>(value);
-        }
-
-        public Task<IReadOnlyList<TestReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
-        {
-            return Task.FromResult<IReadOnlyList<TestReadModel>>(_models.Values.Take(take).ToList());
-        }
-    }
-}
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
deleted file mode 100644
index ddead8353..000000000
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionReadModelStoreSelectorTests.cs
+++ /dev/null
@@ -1,187 +0,0 @@
-using Aevatar.CQRS.Projection.Runtime.Runtime;
-using FluentAssertions;
-using Microsoft.Extensions.DependencyInjection;
-
-namespace Aevatar.CQRS.Projection.Core.Tests;
-
-public class ProjectionReadModelStoreSelectorTests
-{
-    [Fact]
-    public async Task ProjectionGraphStoreFanout_ShouldFanoutWritesAndUseFirstRegisteredQueryStore()
-    {
-        var firstStore = new NamedGraphStore("first");
-        var secondStore = new NamedGraphStore("second");
-        var services = new ServiceCollection();
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "first",
-                _ => firstStore));
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "second",
-                _ => secondStore));
-
-        using var serviceProvider = services.BuildServiceProvider();
-        var fanout = new ProjectionGraphStoreFanout(
-            serviceProvider.GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>(),
-            serviceProvider);
-
-        await fanout.UpsertNodeAsync(new ProjectionGraphNode
-        {
-            Scope = "projection-scope",
-            NodeId = "node-1",
-            NodeType = "Actor",
-            Properties = new Dictionary<string, string>(),
-            UpdatedAt = DateTimeOffset.UtcNow,
-        });
-
-        var edges = await fanout.GetNeighborsAsync(new ProjectionGraphQuery
-        {
-            Scope = "projection-scope",
-            RootNodeId = "node-1",
-            Direction = ProjectionGraphDirection.Both,
-            EdgeTypes = [],
-            Depth = 1,
-            Take = 10,
-        });
-
-        firstStore.UpsertNodeCount.Should().Be(1);
-        secondStore.UpsertNodeCount.Should().Be(1);
-        edges.Should().HaveCount(1);
-        edges[0].EdgeType.Should().Be("first");
-    }
-
-    [Fact]
-    public async Task ProjectionGraphStoreFanout_ShouldReadFromFirstRegistration_WhenOrderDiffers()
-    {
-        var firstStore = new NamedGraphStore("from-first");
-        var secondStore = new NamedGraphStore("from-second");
-        var services = new ServiceCollection();
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "first",
-                _ => firstStore));
-        services.AddSingleton<IProjectionStoreRegistration<IProjectionGraphStore>>(
-            new DelegateProjectionStoreRegistration<IProjectionGraphStore>(
-                "second",
-                _ => secondStore));
-
-        using var serviceProvider = services.BuildServiceProvider();
-        var fanout = new ProjectionGraphStoreFanout(
-            serviceProvider.GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>(),
-            serviceProvider);
-
-        var edges = await fanout.GetNeighborsAsync(new ProjectionGraphQuery
-        {
-            Scope = "projection-scope",
-            RootNodeId = "node-1",
-            Direction = ProjectionGraphDirection.Both,
-            EdgeTypes = [],
-            Depth = 1,
-            Take = 10,
-        });
-
-        edges.Should().ContainSingle();
-        edges[0].EdgeType.Should().Be("from-first");
-    }
-
-    [Fact]
-    public void ProjectionGraphStoreFanout_WhenNoRegistrations_ShouldThrow()
-    {
-        var services = new ServiceCollection();
-        using var serviceProvider = services.BuildServiceProvider();
-
-        Action act = () => new ProjectionGraphStoreFanout([], serviceProvider);
-
-        act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*No graph projection store providers are registered*");
-    }
-
-    private sealed class NamedGraphStore : IProjectionGraphStore
-    {
-        public NamedGraphStore(string providerName)
-        {
-            ProviderName = providerName;
-        }
-
-        public string ProviderName { get; }
-
-        public int UpsertNodeCount { get; private set; }
-
-        public Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
-        {
-            _ = node;
-            UpsertNodeCount++;
-            return Task.CompletedTask;
-        }
-
-        public Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default)
-        {
-            _ = edge;
-            return Task.CompletedTask;
-        }
-
-        public Task DeleteNodeAsync(string scope, string nodeId, CancellationToken ct = default)
-        {
-            _ = scope;
-            _ = nodeId;
-            return Task.CompletedTask;
-        }
-
-        public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
-        {
-            _ = scope;
-            _ = edgeId;
-            return Task.CompletedTask;
-        }
-
-        public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
-            string scope,
-            string ownerId,
-            int take = 5000,
-            CancellationToken ct = default)
-        {
-            _ = scope;
-            _ = ownerId;
-            _ = take;
-            return Task.FromResult<IReadOnlyList<ProjectionGraphNode>>([]);
-        }
-
-        public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
-            string scope,
-            string ownerId,
-            int take = 5000,
-            CancellationToken ct = default)
-        {
-            _ = scope;
-            _ = ownerId;
-            _ = take;
-            return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>([]);
-        }
-
-        public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(ProjectionGraphQuery query, CancellationToken ct = default)
-        {
-            _ = query;
-            IReadOnlyList<ProjectionGraphEdge> result =
-            [
-                new ProjectionGraphEdge
-                {
-                    Scope = "projection-scope",
-                    EdgeId = "edge-1",
-                    EdgeType = ProviderName,
-                    FromNodeId = "node-1",
-                    ToNodeId = "node-2",
-                    Properties = new Dictionary<string, string>(),
-                    UpdatedAt = DateTimeOffset.UtcNow,
-                },
-            ];
-            return Task.FromResult(result);
-        }
-
-        public Task<ProjectionGraphSubgraph> GetSubgraphAsync(ProjectionGraphQuery query, CancellationToken ct = default)
-        {
-            _ = query;
-            return Task.FromResult(new ProjectionGraphSubgraph());
-        }
-    }
-}
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs
new file mode 100644
index 000000000..cfe020743
--- /dev/null
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs
@@ -0,0 +1,154 @@
+using Aevatar.CQRS.Projection.Runtime.Runtime;
+using FluentAssertions;
+
+namespace Aevatar.CQRS.Projection.Core.Tests;
+
+public class ProjectionStoreDispatcherTests
+{
+    [Fact]
+    public async Task UpsertAsync_ShouldWriteToAllBindings()
+    {
+        var queryBinding = new TestQueryableBinding();
+        var graphBinding = new RecordingBinding("graph");
+        var dispatcher = new ProjectionStoreDispatcher<TestReadModel, string>(
+            [queryBinding, graphBinding]);
+
+        var readModel = new TestReadModel
+        {
+            Id = "id-1",
+            Value = "v1",
+        };
+
+        await dispatcher.UpsertAsync(readModel);
+
+        queryBinding.UpsertCount.Should().Be(1);
+        graphBinding.UpsertCount.Should().Be(1);
+    }
+
+    [Fact]
+    public async Task MutateAsync_ShouldMutateQueryableStore_AndRefreshWriteOnlyBindings()
+    {
+        var queryBinding = new TestQueryableBinding();
+        var graphBinding = new RecordingBinding("graph");
+        var dispatcher = new ProjectionStoreDispatcher<TestReadModel, string>(
+            [queryBinding, graphBinding]);
+
+        await dispatcher.UpsertAsync(new TestReadModel
+        {
+            Id = "id-1",
+            Value = "before",
+        });
+
+        await dispatcher.MutateAsync("id-1", model => model.Value = "after");
+
+        var fetched = await dispatcher.GetAsync("id-1");
+        fetched.Should().NotBeNull();
+        fetched!.Value.Should().Be("after");
+        graphBinding.UpsertCount.Should().Be(2);
+        graphBinding.LastValue.Should().Be("after");
+    }
+
+    [Fact]
+    public void Ctor_WhenQueryableBindingMissing_ShouldThrow()
+    {
+        Action act = () => new ProjectionStoreDispatcher<TestReadModel, string>(
+            [new RecordingBinding("write-only")]);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Exactly one queryable projection store binding is required*");
+    }
+
+    [Fact]
+    public void Ctor_WhenMultipleQueryableBindings_ShouldThrow()
+    {
+        Action act = () => new ProjectionStoreDispatcher<TestReadModel, string>(
+            [new TestQueryableBinding(), new TestQueryableBinding()]);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Exactly one queryable projection store binding is required*");
+    }
+
+    private sealed class TestReadModel : IProjectionReadModel
+    {
+        public string Id { get; set; } = "";
+
+        public string Value { get; set; } = "";
+    }
+
+    private sealed class RecordingBinding : IProjectionStoreBinding<TestReadModel, string>
+    {
+        public RecordingBinding(string name)
+        {
+            StoreName = name;
+        }
+
+        public string StoreName { get; }
+
+        public int UpsertCount { get; private set; }
+
+        public string LastValue { get; private set; } = "";
+
+        public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            UpsertCount++;
+            LastValue = readModel.Value;
+            return Task.CompletedTask;
+        }
+    }
+
+    private sealed class TestQueryableBinding : IProjectionQueryableStoreBinding<TestReadModel, string>
+    {
+        private readonly Dictionary<string, TestReadModel> _items = new(StringComparer.Ordinal);
+
+        public string StoreName => "document";
+
+        public int UpsertCount { get; private set; }
+
+        public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            _items[readModel.Id] = Clone(readModel);
+            UpsertCount++;
+            return Task.CompletedTask;
+        }
+
+        public Task MutateAsync(string key, Action<TestReadModel> mutate, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            if (!_items.TryGetValue(key, out var model))
+                throw new InvalidOperationException($"Missing read model '{key}'.");
+
+            mutate(model);
+            return Task.CompletedTask;
+        }
+
+        public Task<TestReadModel?> GetAsync(string key, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            if (!_items.TryGetValue(key, out var model))
+                return Task.FromResult<TestReadModel?>(null);
+
+            return Task.FromResult<TestReadModel?>(Clone(model));
+        }
+
+        public Task<IReadOnlyList<TestReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            var items = _items.Values
+                .Take(Math.Clamp(take, 1, 200))
+                .Select(Clone)
+                .ToList();
+            return Task.FromResult<IReadOnlyList<TestReadModel>>(items);
+        }
+
+        private static TestReadModel Clone(TestReadModel source)
+        {
+            return new TestReadModel
+            {
+                Id = source.Id,
+                Value = source.Value,
+            };
+        }
+    }
+}
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 6a65e8faa..e18a3253a 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -24,26 +24,24 @@ public async Task AddWorkflowExecutionProjectionCQRS_WhenNoProvidersRegistered_S
         Func<Task> act = () => StartHostedServicesAsync(provider);
 
         await act.Should().ThrowAsync<InvalidOperationException>()
-            .WithMessage("*No document projection store providers are registered*");
+            .WithMessage("*IProjectionDocumentStore*");
     }
 
     [Fact]
-    public async Task AddWorkflowExecutionProjectionCQRS_ShouldResolveFanoutStores()
+    public async Task AddWorkflowExecutionProjectionCQRS_ShouldResolveDispatcherAndStores()
     {
         var services = new ServiceCollection();
         RegisterInMemoryProviders(services);
         services.AddWorkflowExecutionProjectionCQRS();
 
         await using var provider = services.BuildServiceProvider();
-        var documentStore = provider.GetRequiredService<IDocumentProjectionStore<WorkflowExecutionReport, string>>();
+        var documentStore = provider.GetRequiredService<IProjectionDocumentStore<WorkflowExecutionReport, string>>();
         var relationStore = provider.GetRequiredService<IProjectionGraphStore>();
-        var graphStore = provider.GetRequiredService<IProjectionGraphMaterializer<WorkflowExecutionReport>>();
-        var router = provider.GetRequiredService<IProjectionMaterializationRouter<WorkflowExecutionReport, string>>();
+        var dispatcher = provider.GetRequiredService<IProjectionStoreDispatcher<WorkflowExecutionReport, string>>();
 
-        documentStore.Should().BeOfType<ProjectionDocumentStoreFanout<WorkflowExecutionReport, string>>();
-        relationStore.Should().BeOfType<ProjectionGraphStoreFanout>();
-        graphStore.Should().BeOfType<ProjectionGraphMaterializer<WorkflowExecutionReport>>();
-        router.Should().NotBeNull();
+        documentStore.Should().NotBeNull();
+        relationStore.Should().NotBeNull();
+        dispatcher.Should().NotBeNull();
 
         Func<Task> act = () => StartHostedServicesAsync(provider);
         await act.Should().NotThrowAsync();
@@ -60,23 +58,24 @@ public void AddWorkflowExecutionProjectionCQRS_WhenGraphProviderMissing_ShouldTh
         Action act = () => provider.GetRequiredService<IProjectionGraphStore>();
 
         act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*No graph projection store providers are registered*");
+            .WithMessage("*IProjectionGraphStore*");
     }
 
     private static void RegisterInMemoryProviders(IServiceCollection services)
     {
-        services.AddInMemoryDocumentStoreRegistration<WorkflowExecutionReport, string>(
+        services.AddInMemoryDocumentProjectionStore<WorkflowExecutionReport, string>(
             keySelector: report => report.RootActorId,
             keyFormatter: key => key,
             listSortSelector: report => report.CreatedAt,
             listTakeMax: 200);
-        services.AddInMemoryGraphStoreRegistration();
+        services.AddInMemoryGraphProjectionStore();
+        services.AddSingleton<IProjectionStoreBinding<WorkflowExecutionReport, string>, ProjectionGraphStoreBinding<WorkflowExecutionReport, string>>();
     }
 
     private static void RegisterElasticsearchDocumentProvider(IServiceCollection services)
     {
-        services.AddElasticsearchDocumentStoreRegistration<WorkflowExecutionReport, string>(
-            optionsFactory: _ => new ElasticsearchProjectionReadModelStoreOptions
+        services.AddElasticsearchDocumentProjectionStore<WorkflowExecutionReport, string>(
+            optionsFactory: _ => new ElasticsearchProjectionDocumentStoreOptions
             {
                 Endpoints = ["http://localhost:9200"],
             },
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
index c11aef7e9..958ad53a2 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionServiceTests.cs
@@ -514,7 +514,7 @@ await act.Should().ThrowAsync<InvalidOperationException>()
     private static ProjectionPortsHarness CreateService(
         WorkflowExecutionProjectionOptions options,
         out InMemoryStreamProvider streams,
-        out ObservableWorkflowExecutionReadModelStore store,
+        out ObservableWorkflowExecutionDocumentStore store,
         IProjectionClock? clock = null)
     {
         return CreateService(
@@ -528,7 +528,7 @@ private static ProjectionPortsHarness CreateService(
     private static ProjectionPortsHarness CreateService(
         WorkflowExecutionProjectionOptions options,
         out InMemoryStreamProvider streams,
-        out ObservableWorkflowExecutionReadModelStore store,
+        out ObservableWorkflowExecutionDocumentStore store,
         out IProjectionSessionEventHub<WorkflowRunEvent> runEventStreamHub,
         IProjectionClock? clock = null)
     {
@@ -538,15 +538,17 @@ private static ProjectionPortsHarness CreateService(
             Microsoft.Extensions.Logging.Abstractions.NullLoggerFactory.Instance,
             forwardingRegistry);
         var subscriptionHub = new ActorStreamSubscriptionHub<EventEnvelope>(streams);
-        store = new ObservableWorkflowExecutionReadModelStore();
+        store = new ObservableWorkflowExecutionDocumentStore();
         var resolvedClock = clock ?? new SystemProjectionClock();
         var relationStore = new InMemoryProjectionGraphStore();
-        var graphStore = new ProjectionGraphMaterializer<WorkflowExecutionReport>(relationStore);
-        var materializationRouter = new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
-            store,
-            graphStore);
+        var bindings = new IProjectionStoreBinding<WorkflowExecutionReport, string>[]
+        {
+            new ProjectionDocumentStoreBinding<WorkflowExecutionReport, string>(store),
+            new ProjectionGraphStoreBinding<WorkflowExecutionReport, string>(relationStore),
+        };
+        var storeDispatcher = new ProjectionStoreDispatcher<WorkflowExecutionReport, string>(bindings);
         var projector = new WorkflowExecutionReadModelProjector(
-            materializationRouter,
+            storeDispatcher,
             new TestEventDeduplicator(),
             resolvedClock,
             BuildReducers());
@@ -584,7 +586,7 @@ private static ProjectionPortsHarness CreateService(
         var mapper = new WorkflowExecutionReadModelMapper();
         var sinkManager = new WorkflowProjectionSinkSubscriptionManager(runEventStreamHub);
         var sinkFailurePolicy = new WorkflowProjectionSinkFailurePolicy(sinkManager, runEventStreamHub, resolvedClock);
-        var readModelUpdater = new WorkflowProjectionReadModelUpdater(materializationRouter, resolvedClock);
+        var readModelUpdater = new WorkflowProjectionReadModelUpdater(storeDispatcher, resolvedClock);
         var queryReader = new WorkflowProjectionQueryReader(
             store,
             mapper,
@@ -620,15 +622,17 @@ private static ProjectionPortsHarness CreateServiceForStartFailure(
         var store = CreateStore();
         var clock = new SystemProjectionClock();
         var relationStore = new InMemoryProjectionGraphStore();
-        var graphStore = new ProjectionGraphMaterializer<WorkflowExecutionReport>(relationStore);
-        var materializationRouter = new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
-            store,
-            graphStore);
+        var bindings = new IProjectionStoreBinding<WorkflowExecutionReport, string>[]
+        {
+            new ProjectionDocumentStoreBinding<WorkflowExecutionReport, string>(store),
+            new ProjectionGraphStoreBinding<WorkflowExecutionReport, string>(relationStore),
+        };
+        var storeDispatcher = new ProjectionStoreDispatcher<WorkflowExecutionReport, string>(bindings);
         var runEventHub = new NoOpWorkflowRunEventHub();
         var mapper = new WorkflowExecutionReadModelMapper();
         var sinkManager = new WorkflowProjectionSinkSubscriptionManager(runEventHub);
         var sinkFailurePolicy = new WorkflowProjectionSinkFailurePolicy(sinkManager, runEventHub, clock);
-        var readModelUpdater = new WorkflowProjectionReadModelUpdater(materializationRouter, clock);
+        var readModelUpdater = new WorkflowProjectionReadModelUpdater(storeDispatcher, clock);
         var queryReader = new WorkflowProjectionQueryReader(
             store,
             mapper,
@@ -680,7 +684,7 @@ [new AIToolResultProjectionApplier<WorkflowExecutionReport, WorkflowExecutionPro
         new WorkflowCompletedEventReducer(),
     ];
 
-    private static InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> CreateStore() => new(
+    private static InMemoryProjectionDocumentStore<WorkflowExecutionReport, string> CreateStore() => new(
         keySelector: report => report.RootActorId,
         keyFormatter: key => key,
         listSortSelector: report => report.StartedAt);
@@ -820,10 +824,10 @@ public Task<WorkflowActorGraphSubgraph> GetActorGraphSubgraphAsync(
             => _queryPort.GetActorGraphEnrichedSnapshotAsync(actorId, depth, take, options, ct);
     }
 
-    private sealed class ObservableWorkflowExecutionReadModelStore
-        : IDocumentProjectionStore<WorkflowExecutionReport, string>
+    private sealed class ObservableWorkflowExecutionDocumentStore
+        : IProjectionDocumentStore<WorkflowExecutionReport, string>
     {
-        private readonly InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> _inner = CreateStore();
+        private readonly InMemoryProjectionDocumentStore<WorkflowExecutionReport, string> _inner = CreateStore();
         private readonly object _gate = new();
         private readonly List<StoreWaiter> _waiters = [];
 
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
index 844eba5f4..7dc8c02e0 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionReadModelProjectorTests.cs
@@ -21,15 +21,21 @@ namespace Aevatar.Workflow.Host.Api.Tests;
 public class WorkflowExecutionReadModelProjectorTests
 {
     private static IEventDeduplicator CreateDeduplicator() => new TestEventDeduplicator();
-    private static InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> CreateStore() => new(
+    private static InMemoryProjectionDocumentStore<WorkflowExecutionReport, string> CreateStore() => new(
         keySelector: report => report.RootActorId,
         keyFormatter: key => key,
         listSortSelector: report => report.StartedAt);
-    private static IProjectionMaterializationRouter<WorkflowExecutionReport, string> CreateRouter(
-        InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> store) =>
-        new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
-            store,
-            new ProjectionGraphMaterializer<WorkflowExecutionReport>(new InMemoryProjectionGraphStore()));
+    private static IProjectionStoreDispatcher<WorkflowExecutionReport, string> CreateDispatcher(
+        InMemoryProjectionDocumentStore<WorkflowExecutionReport, string> store)
+    {
+        var graphStore = new InMemoryProjectionGraphStore();
+        var bindings = new IProjectionStoreBinding<WorkflowExecutionReport, string>[]
+        {
+            new ProjectionDocumentStoreBinding<WorkflowExecutionReport, string>(store),
+            new ProjectionGraphStoreBinding<WorkflowExecutionReport, string>(graphStore),
+        };
+        return new ProjectionStoreDispatcher<WorkflowExecutionReport, string>(bindings);
+    }
 
     private static IReadOnlyList<IProjectionEventReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>> BuildReducers() =>
     [
@@ -67,7 +73,7 @@ public async Task Projector_ShouldBuildRunReadModel_EndToEnd()
     {
         var store = CreateStore();
         var projector = new WorkflowExecutionReadModelProjector(
-            CreateRouter(store),
+            CreateDispatcher(store),
             CreateDeduplicator(),
             new SystemProjectionClock(),
             BuildReducers());
@@ -135,7 +141,7 @@ public async Task Projector_ShouldIgnoreUnknownEvents()
     {
         var store = CreateStore();
         var projector = new WorkflowExecutionReadModelProjector(
-            CreateRouter(store),
+            CreateDispatcher(store),
             CreateDeduplicator(),
             new SystemProjectionClock(),
             BuildReducers());
@@ -169,7 +175,7 @@ public async Task Projector_ShouldDeduplicateByEnvelopeId()
     {
         var store = CreateStore();
         var projector = new WorkflowExecutionReadModelProjector(
-            CreateRouter(store),
+            CreateDispatcher(store),
             CreateDeduplicator(),
             new SystemProjectionClock(),
             BuildReducers());
@@ -213,7 +219,7 @@ public async Task Projector_NoOpReducer_ShouldNotAdvanceStateVersion()
             new TextMessageStartProjectionReducer<WorkflowExecutionReport, WorkflowExecutionProjectionContext>([]),
         ];
         var projector = new WorkflowExecutionReadModelProjector(
-            CreateRouter(store),
+            CreateDispatcher(store),
             CreateDeduplicator(),
             new SystemProjectionClock(),
             reducers);
@@ -249,7 +255,7 @@ public async Task Projector_ShouldUseEnvelopeTimestamp_WhenProvided()
     {
         var store = CreateStore();
         var projector = new WorkflowExecutionReadModelProjector(
-            CreateRouter(store),
+            CreateDispatcher(store),
             CreateDeduplicator(),
             new SystemProjectionClock(),
             BuildReducers());
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index 9236118d0..02e405045 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -44,11 +44,11 @@ public async Task AddWorkflowCapabilityWithAIDefaults_ShouldRegisterWorkflowAndA
 
         builder.Services.Any(x => x.ServiceType == typeof(IWorkflowRunRequestExecutor)).Should().BeTrue();
         builder.Services.Any(x => x.ServiceType == typeof(IWorkflowRunActorPort)).Should().BeTrue();
-        builder.Services.Any(x => x.ServiceType == typeof(IDocumentProjectionStore<,>)).Should().BeTrue();
+        builder.Services.Any(x => x.ServiceType == typeof(IProjectionDocumentStore<WorkflowExecutionReport, string>)).Should().BeTrue();
 
         await using var provider = builder.Services.BuildServiceProvider();
         provider.GetService<ILLMProviderFactory>().Should().NotBeNull();
-        provider.GetService<IDocumentProjectionStore<WorkflowExecutionReport, string>>().Should().NotBeNull();
+        provider.GetService<IProjectionDocumentStore<WorkflowExecutionReport, string>>().Should().NotBeNull();
 
         var toolSources = provider.GetServices<IAgentToolSource>().ToList();
         toolSources.Should().NotContain(x => x is MCPAgentToolSource);
@@ -65,15 +65,15 @@ public void AddWorkflowCapabilityWithAIDefaults_ShouldRegisterReadModelProviders
 
         builder.AddWorkflowCapabilityWithAIDefaults();
 
-        var providerRegistrations = builder.Services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IDocumentProjectionStore<WorkflowExecutionReport, string>>))
+        var documentStores = builder.Services
+            .Where(x => x.ServiceType == typeof(IProjectionDocumentStore<WorkflowExecutionReport, string>))
             .ToList();
-        providerRegistrations.Should().HaveCount(1);
+        documentStores.Should().HaveCount(1);
 
-        var relationRegistrations = builder.Services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionGraphStore>))
+        var graphStores = builder.Services
+            .Where(x => x.ServiceType == typeof(IProjectionGraphStore))
             .ToList();
-        relationRegistrations.Should().HaveCount(1);
+        graphStores.Should().HaveCount(1);
     }
 
     [Fact]
@@ -85,15 +85,15 @@ public void AddWorkflowProjectionReadModelProviders_MultipleCalls_ShouldBeIdempo
         services.AddWorkflowProjectionReadModelProviders(configuration);
         services.AddWorkflowProjectionReadModelProviders(configuration);
 
-        var providerRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IDocumentProjectionStore<WorkflowExecutionReport, string>>))
+        var documentStores = services
+            .Where(x => x.ServiceType == typeof(IProjectionDocumentStore<WorkflowExecutionReport, string>))
             .ToList();
-        providerRegistrations.Should().HaveCount(1);
+        documentStores.Should().HaveCount(1);
 
-        var relationRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionGraphStore>))
+        var graphStores = services
+            .Where(x => x.ServiceType == typeof(IProjectionGraphStore))
             .ToList();
-        relationRegistrations.Should().HaveCount(1);
+        graphStores.Should().HaveCount(1);
     }
 
     [Fact]
@@ -114,19 +114,19 @@ public void AddWorkflowProjectionReadModelProviders_WhenDurableProvidersEnabled_
 
         services.AddWorkflowProjectionReadModelProviders(configuration);
 
-        var providerRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IDocumentProjectionStore<WorkflowExecutionReport, string>>))
+        var documentStores = services
+            .Where(x => x.ServiceType == typeof(IProjectionDocumentStore<WorkflowExecutionReport, string>))
             .ToList();
-        var relationRegistrations = services
-            .Where(x => x.ServiceType == typeof(IProjectionStoreRegistration<IProjectionGraphStore>))
+        var graphStores = services
+            .Where(x => x.ServiceType == typeof(IProjectionGraphStore))
             .ToList();
 
-        providerRegistrations.Should().HaveCount(1);
-        relationRegistrations.Should().HaveCount(1);
+        documentStores.Should().HaveCount(1);
+        graphStores.Should().HaveCount(1);
     }
 
     [Fact]
-    public void AddWorkflowProjectionReadModelProviders_WhenAllProvidersEnabled_ShouldRegisterDurableProvidersFirst()
+    public void AddWorkflowProjectionReadModelProviders_WhenAllProvidersEnabled_ShouldThrow()
     {
         var services = new ServiceCollection();
         var configuration = new ConfigurationBuilder()
@@ -141,23 +141,10 @@ public void AddWorkflowProjectionReadModelProviders_WhenAllProvidersEnabled_Shou
             })
             .Build();
 
-        services.AddWorkflowProjectionReadModelProviders(configuration);
-
-        using var provider = services.BuildServiceProvider();
-        var documentRegistrations = provider
-            .GetServices<IProjectionStoreRegistration<IDocumentProjectionStore<WorkflowExecutionReport, string>>>()
-            .ToList();
-        var graphRegistrations = provider
-            .GetServices<IProjectionStoreRegistration<IProjectionGraphStore>>()
-            .ToList();
-
-        documentRegistrations.Should().HaveCount(2);
-        documentRegistrations[0].ProviderName.Should().Be("Elasticsearch");
-        documentRegistrations[1].ProviderName.Should().Be("InMemory");
+        Action act = () => services.AddWorkflowProjectionReadModelProviders(configuration);
 
-        graphRegistrations.Should().HaveCount(2);
-        graphRegistrations[0].ProviderName.Should().Be("Neo4j");
-        graphRegistrations[1].ProviderName.Should().Be("InMemory");
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Exactly one document projection provider must be enabled*");
     }
 
     [Fact]
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
index 0076dd1ba..5b003f70c 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionOrchestrationComponentTests.cs
@@ -78,10 +78,15 @@ await store.UpsertAsync(new WorkflowExecutionReport
             EndedAt = startedAt.AddMinutes(-6),
             CompletionStatus = WorkflowExecutionCompletionStatus.Running,
         });
+        var relationStore = new InMemoryProjectionGraphStore();
+        var dispatcher = new ProjectionStoreDispatcher<WorkflowExecutionReport, string>(
+            new IProjectionStoreBinding<WorkflowExecutionReport, string>[]
+            {
+                new ProjectionDocumentStoreBinding<WorkflowExecutionReport, string>(store),
+                new ProjectionGraphStoreBinding<WorkflowExecutionReport, string>(relationStore),
+            });
         var updater = new WorkflowProjectionReadModelUpdater(
-            new ProjectionMaterializationRouter<WorkflowExecutionReport, string>(
-                store,
-                new ProjectionGraphMaterializer<WorkflowExecutionReport>(new InMemoryProjectionGraphStore())),
+            dispatcher,
             new FixedClock(stoppedAt));
         var context = new WorkflowExecutionProjectionContext
         {
@@ -322,7 +327,7 @@ public async Task LiveSinkForwarder_WhenPolicyDoesNotHandle_ShouldRethrowOrigina
         policy.Calls.Should().ContainSingle();
     }
 
-    private static InMemoryProjectionReadModelStore<WorkflowExecutionReport, string> CreateStore() => new(
+    private static InMemoryProjectionDocumentStore<WorkflowExecutionReport, string> CreateStore() => new(
         keySelector: report => report.RootActorId,
         keyFormatter: key => key,
         listSortSelector: report => report.StartedAt);
diff --git a/tools/ci/architecture_guards.sh b/tools/ci/architecture_guards.sh
index 2aafdd383..78e6f344e 100755
--- a/tools/ci/architecture_guards.sh
+++ b/tools/ci/architecture_guards.sh
@@ -657,8 +657,8 @@ if [ -n "${projection_provider_business_using_hits}" ]; then
 fi
 
 projection_provider_store_files=(
-  "src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionReadModelStore.cs"
-  "src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionReadModelStore.cs"
+  "src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs"
+  "src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs"
 )
 
 for provider_store_file in "${projection_provider_store_files[@]}"; do
@@ -681,7 +681,7 @@ for provider_store_file in "${projection_provider_store_files[@]}"; do
 done
 
 command_side_readmodel_violations="$(
-  rg -n "IProjectionReadModelStore<|ReadModelStore" \
+  rg -n "IProjectionDocumentStore<|IProjectionGraphStore|ProjectionDocumentStore|ProjectionGraphStore" \
     src/workflow/Aevatar.Workflow.Application \
     src/workflow/Aevatar.Workflow.Host.Api \
     src/Aevatar.Mainnet.Host.Api \

From 3c967fd746ed3c9b57f93f054e7b6f3523e3f707 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 05:13:39 +0800
Subject: [PATCH 41/46] Remove Outdated Projection Store and Audit Scorecard
 Documentation

- Deleted the obsolete Projection Store/ReadModel full refactor plan and audit scorecard documents, which were no longer aligned with the current architecture.
- Streamlined documentation to focus on the latest architectural insights and audit frameworks, ensuring clarity and relevance for future development.
- Updated related documentation to reflect the removal of deprecated content and maintain consistency with the current projection storage architecture.
---
 ...readmodel-full-refactor-plan-2026-02-24.md | 111 ------
 ...orage-architecture-scorecard-2026-02-24.md |  99 -----
 ...tore-full-architecture-audit-2026-02-24.md | 352 ++++++++++++++++++
 3 files changed, 352 insertions(+), 210 deletions(-)
 delete mode 100644 docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
 delete mode 100644 docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
 create mode 100644 docs/audit-scorecard/projection-store-full-architecture-audit-2026-02-24.md

diff --git a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md b/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
deleted file mode 100644
index 7ffd3b7e3..000000000
--- a/docs/architecture/projection-readmodel-full-refactor-plan-2026-02-24.md
+++ /dev/null
@@ -1,111 +0,0 @@
-# Projection Store/ReadModel Full Refactor Plan (No Compatibility)
-
-- Date: 2026-02-24
-- Status: Completed
-- Scope: `Aevatar.CQRS.Projection.*` + `Aevatar.Workflow.Projection` + `Aevatar.Workflow.Extensions.Hosting`
-
-## 1. Refactor Targets
-
-1. 单一主干：Projection 只保留一条权威运行链路（Dispatcher + Bindings）。
-2. 一对多：一个 ReadModel 可同时投影到多个 Store。
-3. 平行关系：Document Store 与 Graph Store 是同层平行实现。
-4. 同类单实现：同类 Provider 在同一 Host 内只允许一个（Document 只能一个，Graph 只能一个）。
-5. 删除冗余：移除 Router/Fanout/Registration/Marker/双模型等无效层。
-
-## 2. Target Architecture
-
-### 2.1 Write Path
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-  E["Domain Event Stream"] --> R["Projector + Reducers"]
-  R --> D["IProjectionStoreDispatcher<TReadModel,TKey>"]
-  D --> B1["ProjectionDocumentStoreBinding"]
-  D --> B2["ProjectionGraphStoreBinding"]
-  B1 --> S1["IProjectionDocumentStore<TReadModel,TKey>"]
-  B2 --> S2["IProjectionGraphStore"]
-  S1 --> P1["Document Provider (Elasticsearch or InMemory)"]
-  S2 --> P2["Graph Provider (Neo4j or InMemory)"]
-```
-
-### 2.2 Query Path
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-  Q["WorkflowProjectionQueryReader"] --> DQ["IProjectionDocumentStore<Get/List>"]
-  Q --> GQ["IProjectionGraphStore<GetNeighbors/GetSubgraph>"]
-```
-
-### 2.3 一对多语义
-
-- ReadModel 是上层语义实体。
-- Store 是下层持久化投影目标。
-- `1 ReadModel : N Stores`（当前落地为 `N=2`: Document + Graph）。
-
-## 3. Hard Refactor Scope
-
-### 3.1 Removed
-
-- `IProjectionStoreRegistration` / `DelegateProjectionStoreRegistration`
-- `IProjectionMaterializationRouter` / `ProjectionMaterializationRouter`
-- `IProjectionGraphMaterializer` / `ProjectionGraphMaterializer`
-- `ProjectionDocumentStoreFanout` / `ProjectionGraphStoreFanout`
-- `IDocumentReadModel` marker
-- `GraphNodeDescriptor` / `GraphEdgeDescriptor`
-- `ProjectionGraphSystemPropertyKeys`
-
-### 3.2 Added
-
-- `IProjectionStoreDispatcher<TReadModel,TKey>`
-- `IProjectionStoreBinding<TReadModel,TKey>`
-- `IProjectionQueryableStoreBinding<TReadModel,TKey>`
-- `ProjectionStoreDispatcher<TReadModel,TKey>`
-- `ProjectionDocumentStoreBinding<TReadModel,TKey>`
-- `ProjectionGraphStoreBinding<TReadModel,TKey>`
-- `ProjectionGraphManagedPropertyKeys`
-
-### 3.3 Renamed For Parallel Semantics
-
-- `IDocumentProjectionStore` -> `IProjectionDocumentStore`
-- `InMemoryProjectionReadModelStore` -> `InMemoryProjectionDocumentStore`
-- `ElasticsearchProjectionReadModelStore` -> `ElasticsearchProjectionDocumentStore`
-- `ElasticsearchProjectionReadModelStoreOptions` -> `ElasticsearchProjectionDocumentStoreOptions`
-
-## 4. Provider Policy
-
-`AddWorkflowProjectionReadModelProviders(configuration)` 强制：
-
-1. Document Provider exactly one:
-   - `Projection:Document:Providers:Elasticsearch:Enabled=true`
-   - or `Projection:Document:Providers:InMemory:Enabled=true`
-2. Graph Provider exactly one:
-   - `Projection:Graph:Providers:Neo4j:Enabled=true`
-   - or `Projection:Graph:Providers:InMemory:Enabled=true`
-3. 禁止旧配置：`Projection:Document:Provider` / `Projection:Graph:Provider`
-4. 可用策略：`Projection:Policies:DenyInMemoryGraphFactStore`
-
-## 5. Implementation Completion Checklist
-
-- [x] Runtime 从 Router/Fanout 切换到 Dispatcher/Bindings
-- [x] Workflow Projector/Updater 切换到 `IProjectionStoreDispatcher`
-- [x] Graph 读模型统一为 `ProjectionGraphNode/ProjectionGraphEdge`
-- [x] Provider DI 改为直接 Store 注册
-- [x] Document/Graph Provider 命名体系并行化
-- [x] 测试更新到 Dispatcher + Binding 模式
-- [x] CI 架构门禁脚本同步新命名
-- [x] 文档与 README 全量更新
-
-## 6. Verification
-
-执行命令：
-
-1. `dotnet build aevatar.slnx --nologo`
-2. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
-3. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
-4. `bash tools/ci/architecture_guards.sh`
-5. `bash tools/ci/projection_route_mapping_guard.sh`
-6. `bash tools/ci/test_stability_guards.sh`
-
-结果：通过。
diff --git a/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md b/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
deleted file mode 100644
index b3d8426d4..000000000
--- a/docs/audit-scorecard/projection-storage-architecture-scorecard-2026-02-24.md
+++ /dev/null
@@ -1,99 +0,0 @@
-# Projection Store / ReadModel 架构审计与打分（2026-02-24）
-
-- 范围：
-  - `src/Aevatar.CQRS.Projection.Stores.Abstractions`
-  - `src/Aevatar.CQRS.Projection.Core.Abstractions`
-  - `src/Aevatar.CQRS.Projection.Runtime.Abstractions`
-  - `src/Aevatar.CQRS.Projection.Runtime`
-  - `src/Aevatar.CQRS.Projection.Providers.*`
-  - `src/workflow/Aevatar.Workflow.Projection`
-  - `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting`
-- 审计目标：确认 `DocumentStore` 与 `GraphStore` 为平行关系，且 `ReadModel -> Stores` 为一对多模型。
-
-## 1. 总分
-
-- **9.3 / 10**
-
-扣分点：
-
-1. Runtime 仍允许通过额外 binding 扩展更多写入目标（通用能力），对首次接入者理解门槛略高。(-0.4)
-2. 历史文档存在过旧版本痕迹（已重写主要文档，但仓库仍可能有历史性参考文档）。(-0.3)
-
-## 2. 分项打分
-
-| 维度 | 分数 | 结论 |
-|---|---:|---|
-| 分层清晰度 | 9.5 | Stores.Abstractions / Runtime.Abstractions / Runtime / Providers 职责边界清晰 |
-| 并行一致性（Document vs Graph） | 9.4 | 命名与实现层次已并行（`IProjectionDocumentStore` vs `IProjectionGraphStore`） |
-| 一对多模型完整性 | 9.2 | `IProjectionStoreDispatcher + Bindings` 明确支持一个 ReadModel 多 Store 分发 |
-| 冗余消除程度 | 9.3 | Fanout/Router/Registration/Marker/双模型已删除 |
-| Host 装配正确性 | 9.4 | Workflow Host 强制同类 Provider 仅一个，并支持 Document+Graph 双写 |
-| 可测试性 | 9.1 | Dispatcher/GraphBinding/Workflow host tests 覆盖关键路径 |
-| 运维可控性 | 9.0 | 策略位与 fail-fast 完整，日志和 guard 已对齐新模型 |
-
-## 3. 核心审计结论
-
-1. `DocumentStore` 与 `GraphStore` 为平行关系，不存在继承或主从关系。
-2. `ReadModel` 与 Store 是 `1:N` 关系：一个 ReadModel 可写入多个 Store。
-3. 当前 Workflow 生产组合为 `N=2`：Document + Graph 同步投影。
-4. 同类 Provider 强制单实现：
-   - Document: Elasticsearch 或 InMemory（二选一）
-   - Graph: Neo4j 或 InMemory（二选一）
-
-## 4. 目标架构图
-
-```mermaid
-%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
-flowchart LR
-  RM["WorkflowExecutionReport(ReadModel)"] --> DSP["IProjectionStoreDispatcher<WorkflowExecutionReport,string>"]
-  DSP --> DB["ProjectionDocumentStoreBinding"]
-  DSP --> GB["ProjectionGraphStoreBinding"]
-  DB --> DS["IProjectionDocumentStore<WorkflowExecutionReport,string>"]
-  GB --> GS["IProjectionGraphStore"]
-  DS --> DP["Document Provider(Elasticsearch/InMemory)"]
-  GS --> GP["Graph Provider(Neo4j/InMemory)"]
-```
-
-## 5. 并行性核对（结论：通过）
-
-| 层级 | Document | Graph | 结果 |
-|---|---|---|---|
-| 抽象层 | `IProjectionDocumentStore<TReadModel,TKey>` | `IProjectionGraphStore` | 平行 |
-| Runtime Binding | `ProjectionDocumentStoreBinding` | `ProjectionGraphStoreBinding` | 平行 |
-| Runtime 分发 | `IProjectionStoreDispatcher` 统一调度 | `IProjectionStoreDispatcher` 统一调度 | 平行 |
-| InMemory Provider | `InMemoryProjectionDocumentStore` | `InMemoryProjectionGraphStore` | 平行 |
-| Durable Provider | `ElasticsearchProjectionDocumentStore` | `Neo4jProjectionGraphStore` | 平行 |
-
-## 6. 冗余审计（已清理）
-
-已删除冗余层：
-
-- `IProjectionStoreRegistration` / `DelegateProjectionStoreRegistration`
-- `IProjectionMaterializationRouter` / `ProjectionMaterializationRouter`
-- `IProjectionGraphMaterializer` / `ProjectionGraphMaterializer`
-- `ProjectionDocumentStoreFanout` / `ProjectionGraphStoreFanout`
-- `IDocumentReadModel`
-- `GraphNodeDescriptor` / `GraphEdgeDescriptor`
-- `ProjectionGraphSystemPropertyKeys`
-
-## 7. 实施核对
-
-已落地关键项：
-
-1. Workflow Projector / Updater 全部使用 `IProjectionStoreDispatcher`。
-2. Workflow Host Provider 装配强制“同类 Provider 仅一个”。
-3. Document/Graph 双写通过 Dispatcher + Binding 实现，不依赖 Router/Fanout。
-4. CI 守卫脚本已更新到新命名（DocumentStore 命名体系）。
-
-## 8. 验证记录
-
-执行通过：
-
-1. `dotnet build aevatar.slnx --nologo`
-2. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
-3. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
-4. `bash tools/ci/architecture_guards.sh`
-5. `bash tools/ci/projection_route_mapping_guard.sh`
-6. `bash tools/ci/test_stability_guards.sh`
-
-结论：当前 Projection Store/ReadModel 架构已满足“彻底重构，无兼容性包袱”的目标。
diff --git a/docs/audit-scorecard/projection-store-full-architecture-audit-2026-02-24.md b/docs/audit-scorecard/projection-store-full-architecture-audit-2026-02-24.md
new file mode 100644
index 000000000..b05de27c6
--- /dev/null
+++ b/docs/audit-scorecard/projection-store-full-architecture-audit-2026-02-24.md
@@ -0,0 +1,352 @@
+# Projection Store 全量类审计报告（2026-02-24）
+
+- 审计日期：2026-02-24
+- 审计范围：
+  - `src/Aevatar.CQRS.Projection.Stores.Abstractions`
+  - `src/Aevatar.CQRS.Projection.Runtime.Abstractions`
+  - `src/Aevatar.CQRS.Projection.Runtime`
+  - `src/Aevatar.CQRS.Projection.Providers.InMemory`
+  - `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
+  - `src/Aevatar.CQRS.Projection.Providers.Neo4j`
+- 审计对象：31 个 Projection Store 相关公开类/接口/枚举/记录
+- 审计目标：
+  1. 完整核对所有 Projection Store 类职责边界。
+  2. 验证 `DocumentStore` 与 `GraphStore` 是否为平行关系。
+  3. 验证 `1 ReadModel -> N Stores` 是否为当前权威模型。
+  4. 输出结构化打分、问题清单、改进建议。
+
+---
+
+## 1. 总体结论
+
+### 1.1 总分
+
+- **9.1 / 10**
+
+### 1.2 结论摘要
+
+1. 当前架构已完成从旧的 Router/Fanout/Registration 体系向 Dispatcher/Binding 体系的收敛。
+2. `DocumentStore` 与 `GraphStore` 在抽象、运行时绑定、Provider 三层均为平行关系，不再存在“语义主从”。
+3. `1 ReadModel -> N Stores` 已落地为稳定主干：Dispatcher 一次写入可同时投影到 Document + Graph。
+4. 主要扣分点集中在两个“超大 Provider 类”的维护复杂度与部分语义冗余。
+
+---
+
+## 2. 目标架构图（已落地）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    RM["ReadModel(TReadModel)"] --> DSP["IProjectionStoreDispatcher<TReadModel,TKey>"]
+    DSP --> QB["IProjectionQueryableStoreBinding<TReadModel,TKey>"]
+    DSP --> WB["IProjectionStoreBinding<TReadModel,TKey> (write-only)"]
+
+    QB --> DS["IProjectionDocumentStore<TReadModel,TKey>"]
+    WB --> GS["IProjectionGraphStore"]
+
+    DS --> DP["Document Provider (Elasticsearch/InMemory)"]
+    GS --> GP["Graph Provider (Neo4j/InMemory)"]
+```
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart TD
+    A["Stores.Abstractions"] --> B["Runtime.Abstractions"]
+    B --> C["Runtime"]
+    A --> D["Providers.InMemory"]
+    A --> E["Providers.Elasticsearch"]
+    A --> F["Providers.Neo4j"]
+    B --> D
+    B --> E
+    B --> F
+```
+
+---
+
+## 3. 类清单与逐类打分（31/31）
+
+### 3.1 Stores.Abstractions
+
+| 类/接口 | 评分 | 审计结论 |
+|---|---:|---|
+| `IProjectionReadModel` | 9.5 | 最小主键契约清晰，无冗余。 |
+| `IGraphReadModel` | 9.4 | 直接暴露 `GraphNodes/GraphEdges`，去除了旧 descriptor 双模型。 |
+| `IProjectionDocumentStore<TReadModel,TKey>` | 9.0 | CRUD 语义完整；未约束 `IProjectionReadModel`，灵活但类型语义略宽。 |
+| `DocumentIndexMetadata` | 9.2 | 索引元数据结构化良好，避免字符串拼 JSON。 |
+| `IProjectionDocumentMetadataProvider<TReadModel>` | 9.3 | 元数据来源抽象简洁，职责单一。 |
+| `IProjectionGraphStore` | 9.2 | 图写入/查询/owner 清理契约完整。 |
+| `ProjectionGraphDirection` | 9.6 | 枚举清晰。 |
+| `ProjectionGraphNode` | 9.1 | 结构简明；`Properties` 固定 string->string，通用性受限但稳定。 |
+| `ProjectionGraphEdge` | 9.1 | 同上。 |
+| `ProjectionGraphQuery` | 9.3 | 方向/边类型/深度/take 语义完整。 |
+| `ProjectionGraphSubgraph` | 9.4 | 输出模型简洁。 |
+
+### 3.2 Runtime.Abstractions
+
+| 类/接口 | 评分 | 审计结论 |
+|---|---:|---|
+| `IProjectionStoreDispatcher<TReadModel,TKey>` | 9.4 | 统一入口良好，彻底替代旧 Router。 |
+| `IProjectionStoreBinding<TReadModel,TKey>` | 9.3 | 最小写入 binding 抽象，扩展成本低。 |
+| `IProjectionQueryableStoreBinding<TReadModel,TKey>` | 9.2 | 显式区分查询源和写入源，核心设计正确。 |
+| `IProjectionDocumentMetadataResolver` | 9.1 | 解析职责明确。 |
+| `ProjectionGraphManagedPropertyKeys` | 8.9 | 运行态系统键集中定义合理；命名可继续收敛。 |
+
+### 3.3 Runtime
+
+| 类/接口 | 评分 | 审计结论 |
+|---|---:|---|
+| `ServiceCollectionExtensions` | 9.0 | 默认注入模型清晰；对“唯一 query binding”有约束前提。 |
+| `ProjectionDocumentMetadataResolver` | 9.2 | DI 解析简单稳定。 |
+| `ProjectionDocumentStoreBinding<TReadModel,TKey>` | 9.4 | 纯代理类，无冗余逻辑。 |
+| `ProjectionGraphStoreBinding<TReadModel,TKey>` | 8.8 | owner 标记+差集清理逻辑完整；固定 `take:50000` 具规模上限风险。 |
+| `ProjectionStoreDispatcher<TReadModel,TKey>` | 8.9 | 一对多分发模型正确；写入失败时非事务一致性需要明确。 |
+
+### 3.4 Providers.InMemory
+
+| 类/接口 | 评分 | 审计结论 |
+|---|---:|---|
+| `ServiceCollectionExtensions` | 9.2 | Document/Graph 注册对称。 |
+| `InMemoryProjectionDocumentStore<TReadModel,TKey>` | 8.8 | 行为完整；序列化 clone 成本较高，但测试语义可接受。 |
+| `InMemoryProjectionGraphStore` | 8.6 | 功能完整；子图构建复杂度较高，适合 dev/test，不宜生产事实源。 |
+
+### 3.5 Providers.Elasticsearch
+
+| 类/接口 | 评分 | 审计结论 |
+|---|---:|---|
+| `ElasticsearchMissingIndexBehavior` | 9.3 | 缺失索引策略明确。 |
+| `ElasticsearchProjectionDocumentStoreOptions` | 9.2 | 配置项完整。 |
+| `ServiceCollectionExtensions` | 9.3 | 注册方式标准化。 |
+| `ElasticsearchProjectionDocumentStore<TReadModel,TKey>` | 8.4 | OCC/索引初始化/查询逻辑完整，但类体过大（700+ 行）维护成本高。 |
+
+### 3.6 Providers.Neo4j
+
+| 类/接口 | 评分 | 审计结论 |
+|---|---:|---|
+| `Neo4jProjectionGraphStoreOptions` | 9.1 | 配置完整。 |
+| `ServiceCollectionExtensions` | 8.7 | 注入接口清晰，但 `scopeFactory` 语义与实现存在冗余。 |
+| `Neo4jProjectionGraphStore` | 8.3 | 图能力完整；类体过大（690+ 行）且 `_scope` 仅用于日志，语义冗余。 |
+
+---
+
+## 4. 关键架构核对项
+
+### 4.1 Document 与 Graph 是否平行
+
+结论：**是**。
+
+证据：
+
+1. 抽象层：`IProjectionDocumentStore` 与 `IProjectionGraphStore` 同层并列。
+2. Runtime 层：`ProjectionDocumentStoreBinding` 与 `ProjectionGraphStoreBinding` 同层并列。
+3. Provider 层：
+   - Document：`InMemoryProjectionDocumentStore` / `ElasticsearchProjectionDocumentStore`
+   - Graph：`InMemoryProjectionGraphStore` / `Neo4jProjectionGraphStore`
+
+### 4.2 是否是 1 对多（ReadModel -> Stores）
+
+结论：**是**。
+
+证据：
+
+1. `ProjectionStoreDispatcher` 接收 `IEnumerable<IProjectionStoreBinding<...>>`。
+2. `UpsertAsync` 对所有 binding 顺序写入。
+3. `MutateAsync` 先改 query binding，再回写 write-only bindings。
+
+### 4.3 同类 Provider 是否单实现
+
+结论：**Workflow Host 侧已强约束**。
+
+证据：
+
+1. Document provider count 必须为 1。
+2. Graph provider count 必须为 1。
+3. 配置冲突时 fail-fast。
+
+---
+
+## 5. 发现的问题（按严重度）
+
+### 5.1 High
+
+无。
+
+### 5.2 Medium
+
+1. 分发写入非事务一致性风险。
+- 位置：`ProjectionStoreDispatcher`。
+- 现象：某 binding 写入失败时，前序 binding 可能已成功写入，存在短时不一致。
+- 影响：Document 与 Graph 同步窗口内可能产生读侧偏差。
+- 建议：
+  1. 在 dispatcher 层引入可选补偿策略接口（`IProjectionStoreDispatchCompensator`）。
+  2. 明确一致性等级（at-least-once + eventual consistency）并写入契约文档。
+
+2. Graph 清理固定上限可能漏删。
+- 位置：`ProjectionGraphStoreBinding` 的 `take:50000`。
+- 现象：超大 owner 规模下清理差集可能不完整。
+- 影响：陈旧边/节点残留。
+- 建议：分页清理或游标化清理。
+
+3. Neo4j scope 语义冗余。
+- 位置：`Neo4jProjectionGraphStore` 的 `_scope` 字段。
+- 现象：构造注入 `scopeFactory`，但 `_scope` 基本不参与行为约束，仅用于日志。
+- 影响：配置心智负担增加，接口语义与实现不一致。
+- 建议：
+  1. 若不需要全局 scope 约束，删除 `scopeFactory` 与 `_scope` 字段。
+  2. 若需要约束，则在所有写/读入口强校验 `query.Scope == _scope`。
+
+### 5.3 Low
+
+1. Provider 大类过重（可维护性）。
+- `ElasticsearchProjectionDocumentStore` 712 行。
+- `Neo4jProjectionGraphStore` 691 行。
+- 建议：按职责拆分 `IndexBootstrap / DocumentMutation / QueryAdapter / CypherBuilder`。
+
+2. `IProjectionDocumentStore` 类型约束较宽。
+- 当前仅 `where TReadModel : class`。
+- 建议：若长期只服务 Projection ReadModel，可评估收紧为 `IProjectionReadModel`。
+
+### 5.4 证据索引（关键问题）
+
+1. 非事务分发路径：
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:55`
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:67`
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:71`
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:78`
+2. Graph 清理固定上限：
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs:44`
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs:53`
+3. Neo4j scope 冗余链路：
+   - `src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs:13`
+   - `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs:15`
+   - `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs:642`
+4. Runtime 默认 query binding 注入：
+   - `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:12`
+   - `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:13`
+5. Document store 类型约束：
+   - `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs:3`
+   - `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs:4`
+
+---
+
+## 6. 冗余与重复审计结果
+
+### 6.1 已清理（通过）
+
+1. 旧 `Router/Fanout/Registration` 双轨层已移除。
+2. `IDocumentReadModel` marker 已移除。
+3. `GraphNodeDescriptor/GraphEdgeDescriptor` 双模型已移除。
+4. Document 命名已收敛为 `ProjectionDocumentStore` 体系。
+
+### 6.2 当前仍需关注（非阻塞）
+
+1. Neo4j `scopeFactory` 冗余。
+2. 两个 Provider 超大类的职责聚合过多。
+
+---
+
+## 7. 测试覆盖审计
+
+### 7.1 已覆盖
+
+1. Dispatcher 核心行为：
+   - 多 binding 写入
+   - query binding 唯一性约束
+2. Graph binding 生命周期行为：
+   - owner 差集删除
+   - 跨 owner 隔离
+   - 空 Id fail-fast
+3. Elasticsearch 行为：
+   - 缺失索引策略
+   - OCC 重试
+   - 索引元数据结构化初始化
+4. Workflow Host 组合：
+   - Provider 单实现约束
+   - 组合注册 idempotent
+
+### 7.2 建议补测
+
+1. `ProjectionStoreDispatcher` 写入失败补偿/告警行为（当前无契约测试）。
+2. `ProjectionGraphStoreBinding` 在超大 owner（>50k）时的清理分页行为。
+3. `Neo4jProjectionGraphStore` scope 约束行为（若决定保留 `_scope`）。
+
+---
+
+## 8. 分层与依赖反转审计
+
+结论：**通过**。
+
+1. `Stores.Abstractions` 无额外依赖，保持最小内核。
+2. `Runtime.Abstractions` 仅依赖 `Stores.Abstractions`。
+3. `Runtime` 依赖 Runtime/Stores 抽象，不依赖业务层。
+4. Provider 项目仅依赖抽象与通用基础包，不依赖 Workflow/AI 业务项目。
+
+---
+
+## 9. 综合评分明细
+
+| 维度 | 分数 | 说明 |
+|---|---:|---|
+| 分层清晰度 | 9.4 | 分层边界清晰，依赖方向正确。 |
+| 平行一致性（Document/Graph） | 9.5 | 三层结构平行，命名已统一。 |
+| 一对多模型完备度 | 9.2 | Dispatcher/Binding 语义完整。 |
+| 冗余清理彻底性 | 9.0 | 旧体系已删，少量语义冗余尚存。 |
+| 可维护性 | 8.4 | 两个 Provider 大类过重。 |
+| 可扩展性 | 9.1 | Binding 扩展点清晰。 |
+| 可测试性 | 9.0 | 核心路径有测试，补偿/规模化场景需补测。 |
+| 运行稳定性 | 8.9 | 现有模型可用，但需明确非事务一致性语义。 |
+
+- **最终得分：9.1 / 10**
+
+---
+
+## 10. 建议实施顺序（P0/P1/P2）
+
+1. P0：确定 Neo4j scope 语义（删除或强约束）。
+2. P1：为 Dispatcher 增加失败补偿扩展点与可观测日志。
+3. P1：Graph owner 清理改为分页/游标模式，移除固定 50k 上限。
+4. P2：拆分 Elasticsearch/Neo4j 大类，降低维护复杂度。
+
+---
+
+## 11. 审计结语
+
+Projection Store 当前架构已经达到“单主干 + Document/Graph 平行 + ReadModel 一对多投影”的目标态。
+当前最需要处理的不是重做模型，而是收敛少量语义冗余并降低大类复杂度。
+
+---
+
+## 附录 A：31 个类声明位置（文件:行号）
+
+```text
+src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchMissingIndexBehavior.cs:3:public enum ElasticsearchMissingIndexBehavior
+src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionDocumentStoreOptions.cs:3:public sealed class ElasticsearchProjectionDocumentStoreOptions
+src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs:8:public static class ServiceCollectionExtensions
+src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs:11:public sealed class ElasticsearchProjectionDocumentStore<TReadModel, TKey>
+src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs:7:public static class ServiceCollectionExtensions
+src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs:7:public sealed class InMemoryProjectionDocumentStore<TReadModel, TKey>
+src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs:5:public sealed class InMemoryProjectionGraphStore
+src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionGraphStoreOptions.cs:3:public sealed class Neo4jProjectionGraphStoreOptions
+src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs:8:public static class ServiceCollectionExtensions
+src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs:9:public sealed class Neo4jProjectionGraphStore
+src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphManagedPropertyKeys.cs:3:public static class ProjectionGraphManagedPropertyKeys
+src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs:3:public interface IProjectionDocumentMetadataResolver
+src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionQueryableStoreBinding.cs:3:public interface IProjectionQueryableStoreBinding<TReadModel, in TKey>
+src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBinding.cs:3:public interface IProjectionStoreBinding<in TReadModel, in TKey>
+src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatcher.cs:3:public interface IProjectionStoreDispatcher<TReadModel, in TKey>
+src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:7:public static class ServiceCollectionExtensions
+src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs:5:public sealed class ProjectionDocumentMetadataResolver : IProjectionDocumentMetadataResolver
+src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs:3:public sealed class ProjectionDocumentStoreBinding<TReadModel, TKey>
+src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs:3:public sealed class ProjectionGraphStoreBinding<TReadModel, TKey>
+src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:6:public sealed class ProjectionStoreDispatcher<TReadModel, TKey>
+src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs:3:public interface IProjectionGraphStore
+src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphDirection.cs:3:public enum ProjectionGraphDirection
+src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphEdge.cs:3:public sealed class ProjectionGraphEdge
+src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphNode.cs:3:public sealed class ProjectionGraphNode
+src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphQuery.cs:3:public sealed class ProjectionGraphQuery
+src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSubgraph.cs:3:public sealed class ProjectionGraphSubgraph
+src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/DocumentIndexMetadata.cs:3:public sealed record DocumentIndexMetadata(
+src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphReadModel.cs:3:public interface IGraphReadModel : IProjectionReadModel
+src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs:3:public interface IProjectionDocumentMetadataProvider<out TReadModel>
+src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs:3:public interface IProjectionDocumentStore<TReadModel, in TKey>
+src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModel.cs:3:public interface IProjectionReadModel
+```

From a0b6a78861317c40d025c37f8e854198bb3982b2 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 05:39:54 +0800
Subject: [PATCH 42/46] Enhance Projection ReadModel and Update Dependency
 Injection

- Introduced `IProjectionReadModel` interface to unify the ReadModel structure across different projection stores, ensuring consistency in implementation.
- Updated the `ServiceCollectionExtensions` for both InMemory and Elasticsearch providers to enforce the new `IProjectionReadModel` constraint, improving type safety and clarity in service registration.
- Added a new project reference for `Aevatar.CQRS.Projection.Stores.Abstractions` to facilitate integration with the updated ReadModel architecture.
- Revised documentation to reflect these changes and clarify the new ReadModel interface requirements, ensuring alignment with the latest architectural framework.
---
 ...r.Demos.CaseProjection.Abstractions.csproj |   1 +
 .../ReadModels/CaseProjectionReadModel.cs     |   6 +-
 ...ng-elasticsearch-readmodel-requirements.md |   2 +-
 ...tore-full-architecture-audit-2026-02-24.md | 407 +++++++-----------
 .../ServiceCollectionExtensions.cs            |   2 +-
 ...icsearchProjectionDocumentStore.Helpers.cs | 320 ++++++++++++++
 .../ElasticsearchProjectionDocumentStore.cs   | 316 +-------------
 .../ServiceCollectionExtensions.cs            |   2 +-
 .../Stores/InMemoryProjectionDocumentStore.cs |   2 +-
 .../Stores/InMemoryProjectionGraphStore.cs    |   6 +
 .../ServiceCollectionExtensions.cs            |   5 +-
 .../Neo4jProjectionGraphStore.Helpers.cs      | 318 ++++++++++++++
 .../Stores/Neo4jProjectionGraphStore.cs       | 327 +-------------
 .../IProjectionStoreBindingAvailability.cs    |   6 +
 .../IProjectionStoreDispatchCompensator.cs    |   9 +
 ...jectionStoreDispatchCompensationContext.cs |  17 +
 .../Stores/ProjectionStoreDispatchOptions.cs  |   6 +
 .../ServiceCollectionExtensions.cs            |   3 +
 src/Aevatar.CQRS.Projection.Runtime/README.md |   5 +-
 ...ggingProjectionStoreDispatchCompensator.cs |  34 ++
 .../Runtime/ProjectionDocumentStoreBinding.cs |  27 +-
 .../Runtime/ProjectionGraphStoreBinding.cs    | 121 +++++-
 .../Runtime/ProjectionStoreDispatcher.cs      | 165 ++++++-
 .../Graphs/IProjectionGraphStore.cs           |   2 +
 .../ReadModels/IProjectionDocumentStore.cs    |   2 +-
 ...tionProviderServiceCollectionExtensions.cs |   6 +-
 ...rchProjectionDocumentStoreBehaviorTests.cs |   2 +-
 .../ProjectionGraphStoreBindingTests.cs       |  53 +++
 .../ProjectionProviderE2EIntegrationTests.cs  |   2 +-
 .../ProjectionStoreDispatcherTests.cs         | 151 ++++++-
 ...lowExecutionProjectionRegistrationTests.cs |   2 -
 31 files changed, 1369 insertions(+), 958 deletions(-)
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Helpers.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Helpers.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatchCompensator.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchCompensationContext.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Runtime/Runtime/LoggingProjectionStoreDispatchCompensator.cs

diff --git a/demos/Aevatar.Demos.CaseProjection.Abstractions/Aevatar.Demos.CaseProjection.Abstractions.csproj b/demos/Aevatar.Demos.CaseProjection.Abstractions/Aevatar.Demos.CaseProjection.Abstractions.csproj
index 2d83ec38d..dcd1aceb7 100644
--- a/demos/Aevatar.Demos.CaseProjection.Abstractions/Aevatar.Demos.CaseProjection.Abstractions.csproj
+++ b/demos/Aevatar.Demos.CaseProjection.Abstractions/Aevatar.Demos.CaseProjection.Abstractions.csproj
@@ -9,6 +9,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
+    <ProjectReference Include="..\..\src\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/demos/Aevatar.Demos.CaseProjection.Abstractions/ReadModels/CaseProjectionReadModel.cs b/demos/Aevatar.Demos.CaseProjection.Abstractions/ReadModels/CaseProjectionReadModel.cs
index 348e27b94..78ef139c2 100644
--- a/demos/Aevatar.Demos.CaseProjection.Abstractions/ReadModels/CaseProjectionReadModel.cs
+++ b/demos/Aevatar.Demos.CaseProjection.Abstractions/ReadModels/CaseProjectionReadModel.cs
@@ -1,7 +1,11 @@
+using Aevatar.CQRS.Projection.Stores.Abstractions;
+
 namespace Aevatar.Demos.CaseProjection.Abstractions.ReadModels;
 
-public sealed class CaseProjectionReadModel
+public sealed class CaseProjectionReadModel : IProjectionReadModel
 {
+    public string Id => RunId;
+
     public string ReadModelVersion { get; set; } = "1.0";
     public string RunId { get; set; } = "";
     public string RootActorId { get; set; } = "";
diff --git a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
index 9fd252db7..87ab37a7e 100644
--- a/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
+++ b/docs/architecture/generic-event-sourcing-elasticsearch-readmodel-requirements.md
@@ -97,7 +97,7 @@
   - `src/Aevatar.CQRS.Projection.Providers.Neo4j`
 - 当前行为：
   1. 一个 ReadModel 可绑定多个 Store（Document + Graph）。
-  2. 必须且仅能有一个 queryable binding（用于 Get/List/Mutate）。
+  2. queryable binding 为可选（0..1）；若存在则用于 Get/List/Mutate。
   3. Provider 写路径日志结构已统一。
 
 ### 6.4 Workflow 接入现状（已完成）
diff --git a/docs/audit-scorecard/projection-store-full-architecture-audit-2026-02-24.md b/docs/audit-scorecard/projection-store-full-architecture-audit-2026-02-24.md
index b05de27c6..b5ad1ba9e 100644
--- a/docs/audit-scorecard/projection-store-full-architecture-audit-2026-02-24.md
+++ b/docs/audit-scorecard/projection-store-full-architecture-audit-2026-02-24.md
@@ -1,6 +1,7 @@
-# Projection Store 全量类审计报告（2026-02-24）
+# Projection Store 全量架构审计与打分（2026-02-24，Rev.2）
 
 - 审计日期：2026-02-24
+- 修订日期：2026-02-24
 - 审计范围：
   - `src/Aevatar.CQRS.Projection.Stores.Abstractions`
   - `src/Aevatar.CQRS.Projection.Runtime.Abstractions`
@@ -8,44 +9,49 @@
   - `src/Aevatar.CQRS.Projection.Providers.InMemory`
   - `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
   - `src/Aevatar.CQRS.Projection.Providers.Neo4j`
-- 审计对象：31 个 Projection Store 相关公开类/接口/枚举/记录
+  - `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting`
+- 审计对象：34 个公开 Projection Store 类型（class/interface/record/enum）
 - 审计目标：
-  1. 完整核对所有 Projection Store 类职责边界。
-  2. 验证 `DocumentStore` 与 `GraphStore` 是否为平行关系。
-  3. 验证 `1 ReadModel -> N Stores` 是否为当前权威模型。
-  4. 输出结构化打分、问题清单、改进建议。
+  1. 核对 Projection Store 体系是否“单主干 + 一对多分发”。
+  2. 严格确认 `DocumentStore` 与 `GraphStore` 是平行关系。
+  3. 严格确认“一个 ReadModel 对应多个 Store”是否在实现层真实成立。
+  4. 输出全量评分、冗余清单、实现一致性结论。
 
 ---
 
-## 1. 总体结论
+## 1. 审计结论（严格）
 
 ### 1.1 总分
 
-- **9.1 / 10**
+- **9.6 / 10**
 
-### 1.2 结论摘要
+### 1.2 核心结论
 
-1. 当前架构已完成从旧的 Router/Fanout/Registration 体系向 Dispatcher/Binding 体系的收敛。
-2. `DocumentStore` 与 `GraphStore` 在抽象、运行时绑定、Provider 三层均为平行关系，不再存在“语义主从”。
-3. `1 ReadModel -> N Stores` 已落地为稳定主干：Dispatcher 一次写入可同时投影到 Document + Graph。
-4. 主要扣分点集中在两个“超大 Provider 类”的维护复杂度与部分语义冗余。
+1. `DocumentStore` 与 `GraphStore` 已在抽象层、Runtime 绑定层、Provider 层形成同层并行模型。
+2. `1 ReadModel -> N Stores` 已稳定落地：`ProjectionStoreDispatcher` 对所有已配置 binding 统一分发写入。
+3. Runtime 已去除“必须存在主查询存储”的硬约束：queryable binding 现在是可选（0..1），不再强制唯一主存储。
+4. Runtime 默认同层装配 `DocumentBinding + GraphBinding`，Graph 在“无 GraphStore 或非 IGraphReadModel”场景自动失活，避免手工拼接不对称。
+5. Workflow Host 层对“同类 Provider 仅一个”保持强约束：Document Provider 必须且仅能一个，Graph Provider 必须且仅能一个。
 
 ---
 
-## 2. 目标架构图（已落地）
+## 2. 目标架构图（当前实现）
 
 ```mermaid
 %%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
 flowchart LR
     RM["ReadModel(TReadModel)"] --> DSP["IProjectionStoreDispatcher<TReadModel,TKey>"]
-    DSP --> QB["IProjectionQueryableStoreBinding<TReadModel,TKey>"]
-    DSP --> WB["IProjectionStoreBinding<TReadModel,TKey> (write-only)"]
 
-    QB --> DS["IProjectionDocumentStore<TReadModel,TKey>"]
-    WB --> GS["IProjectionGraphStore"]
+    DSP --> B1["ProjectionDocumentStoreBinding<TReadModel,TKey>"]
+    DSP --> B2["ProjectionGraphStoreBinding<TReadModel,TKey>"]
 
-    DS --> DP["Document Provider (Elasticsearch/InMemory)"]
-    GS --> GP["Graph Provider (Neo4j/InMemory)"]
+    B1 --> DS["IProjectionDocumentStore<TReadModel,TKey>"]
+    B2 --> GS["IProjectionGraphStore"]
+
+    DS --> DP["Document Provider: InMemory | Elasticsearch"]
+    GS --> GP["Graph Provider: InMemory | Neo4j"]
+
+    DSP --> Q["Get/List/Mutate: queryable binding(0..1)"]
 ```
 
 ```mermaid
@@ -63,290 +69,173 @@ flowchart TD
 
 ---
 
-## 3. 类清单与逐类打分（31/31）
-
-### 3.1 Stores.Abstractions
-
-| 类/接口 | 评分 | 审计结论 |
-|---|---:|---|
-| `IProjectionReadModel` | 9.5 | 最小主键契约清晰，无冗余。 |
-| `IGraphReadModel` | 9.4 | 直接暴露 `GraphNodes/GraphEdges`，去除了旧 descriptor 双模型。 |
-| `IProjectionDocumentStore<TReadModel,TKey>` | 9.0 | CRUD 语义完整；未约束 `IProjectionReadModel`，灵活但类型语义略宽。 |
-| `DocumentIndexMetadata` | 9.2 | 索引元数据结构化良好，避免字符串拼 JSON。 |
-| `IProjectionDocumentMetadataProvider<TReadModel>` | 9.3 | 元数据来源抽象简洁，职责单一。 |
-| `IProjectionGraphStore` | 9.2 | 图写入/查询/owner 清理契约完整。 |
-| `ProjectionGraphDirection` | 9.6 | 枚举清晰。 |
-| `ProjectionGraphNode` | 9.1 | 结构简明；`Properties` 固定 string->string，通用性受限但稳定。 |
-| `ProjectionGraphEdge` | 9.1 | 同上。 |
-| `ProjectionGraphQuery` | 9.3 | 方向/边类型/深度/take 语义完整。 |
-| `ProjectionGraphSubgraph` | 9.4 | 输出模型简洁。 |
-
-### 3.2 Runtime.Abstractions
-
-| 类/接口 | 评分 | 审计结论 |
-|---|---:|---|
-| `IProjectionStoreDispatcher<TReadModel,TKey>` | 9.4 | 统一入口良好，彻底替代旧 Router。 |
-| `IProjectionStoreBinding<TReadModel,TKey>` | 9.3 | 最小写入 binding 抽象，扩展成本低。 |
-| `IProjectionQueryableStoreBinding<TReadModel,TKey>` | 9.2 | 显式区分查询源和写入源，核心设计正确。 |
-| `IProjectionDocumentMetadataResolver` | 9.1 | 解析职责明确。 |
-| `ProjectionGraphManagedPropertyKeys` | 8.9 | 运行态系统键集中定义合理；命名可继续收敛。 |
-
-### 3.3 Runtime
-
-| 类/接口 | 评分 | 审计结论 |
-|---|---:|---|
-| `ServiceCollectionExtensions` | 9.0 | 默认注入模型清晰；对“唯一 query binding”有约束前提。 |
-| `ProjectionDocumentMetadataResolver` | 9.2 | DI 解析简单稳定。 |
-| `ProjectionDocumentStoreBinding<TReadModel,TKey>` | 9.4 | 纯代理类，无冗余逻辑。 |
-| `ProjectionGraphStoreBinding<TReadModel,TKey>` | 8.8 | owner 标记+差集清理逻辑完整；固定 `take:50000` 具规模上限风险。 |
-| `ProjectionStoreDispatcher<TReadModel,TKey>` | 8.9 | 一对多分发模型正确；写入失败时非事务一致性需要明确。 |
-
-### 3.4 Providers.InMemory
-
-| 类/接口 | 评分 | 审计结论 |
-|---|---:|---|
-| `ServiceCollectionExtensions` | 9.2 | Document/Graph 注册对称。 |
-| `InMemoryProjectionDocumentStore<TReadModel,TKey>` | 8.8 | 行为完整；序列化 clone 成本较高，但测试语义可接受。 |
-| `InMemoryProjectionGraphStore` | 8.6 | 功能完整；子图构建复杂度较高，适合 dev/test，不宜生产事实源。 |
-
-### 3.5 Providers.Elasticsearch
-
-| 类/接口 | 评分 | 审计结论 |
-|---|---:|---|
-| `ElasticsearchMissingIndexBehavior` | 9.3 | 缺失索引策略明确。 |
-| `ElasticsearchProjectionDocumentStoreOptions` | 9.2 | 配置项完整。 |
-| `ServiceCollectionExtensions` | 9.3 | 注册方式标准化。 |
-| `ElasticsearchProjectionDocumentStore<TReadModel,TKey>` | 8.4 | OCC/索引初始化/查询逻辑完整，但类体过大（700+ 行）维护成本高。 |
-
-### 3.6 Providers.Neo4j
-
-| 类/接口 | 评分 | 审计结论 |
-|---|---:|---|
-| `Neo4jProjectionGraphStoreOptions` | 9.1 | 配置完整。 |
-| `ServiceCollectionExtensions` | 8.7 | 注入接口清晰，但 `scopeFactory` 语义与实现存在冗余。 |
-| `Neo4jProjectionGraphStore` | 8.3 | 图能力完整；类体过大（690+ 行）且 `_scope` 仅用于日志，语义冗余。 |
-
----
-
-## 4. 关键架构核对项
+## 3. 严格核对项
 
-### 4.1 Document 与 Graph 是否平行
+### 3.1 Document 与 Graph 是否平行关系
 
-结论：**是**。
+结论：**是（通过）**。
 
 证据：
-
-1. 抽象层：`IProjectionDocumentStore` 与 `IProjectionGraphStore` 同层并列。
-2. Runtime 层：`ProjectionDocumentStoreBinding` 与 `ProjectionGraphStoreBinding` 同层并列。
-3. Provider 层：
+1. 存储抽象同层并列：`IProjectionDocumentStore<TReadModel,TKey>` 与 `IProjectionGraphStore`。
+2. Runtime 绑定同层并列：`ProjectionDocumentStoreBinding` 与 `ProjectionGraphStoreBinding`。
+3. Provider 同层并列：
    - Document：`InMemoryProjectionDocumentStore` / `ElasticsearchProjectionDocumentStore`
    - Graph：`InMemoryProjectionGraphStore` / `Neo4jProjectionGraphStore`
 
-### 4.2 是否是 1 对多（ReadModel -> Stores）
+### 3.2 是否是一对多（一个 ReadModel -> 多 Store）
 
-结论：**是**。
+结论：**是（通过）**。
 
 证据：
-
 1. `ProjectionStoreDispatcher` 接收 `IEnumerable<IProjectionStoreBinding<...>>`。
-2. `UpsertAsync` 对所有 binding 顺序写入。
-3. `MutateAsync` 先改 query binding，再回写 write-only bindings。
+2. `UpsertAsync` 顺序写入所有已配置 binding。
+3. query 逻辑与 write fan-out 解耦：queryable binding 可选（0..1），写分发不受影响。
 
-### 4.3 同类 Provider 是否单实现
+### 3.3 同类 Provider 是否只允许一个
 
-结论：**Workflow Host 侧已强约束**。
+结论：**是（Workflow Host 侧强约束通过）**。
 
 证据：
-
-1. Document provider count 必须为 1。
-2. Graph provider count 必须为 1。
-3. 配置冲突时 fail-fast。
+1. `WorkflowProjectionProviderServiceCollectionExtensions` 对 Document Provider 计数强约束为 1。
+2. 同文件对 Graph Provider 计数强约束为 1。
+3. 冲突配置启动即 fail-fast。
 
 ---
 
-## 5. 发现的问题（按严重度）
-
-### 5.1 High
-
-无。
-
-### 5.2 Medium
-
-1. 分发写入非事务一致性风险。
-- 位置：`ProjectionStoreDispatcher`。
-- 现象：某 binding 写入失败时，前序 binding 可能已成功写入，存在短时不一致。
-- 影响：Document 与 Graph 同步窗口内可能产生读侧偏差。
-- 建议：
-  1. 在 dispatcher 层引入可选补偿策略接口（`IProjectionStoreDispatchCompensator`）。
-  2. 明确一致性等级（at-least-once + eventual consistency）并写入契约文档。
-
-2. Graph 清理固定上限可能漏删。
-- 位置：`ProjectionGraphStoreBinding` 的 `take:50000`。
-- 现象：超大 owner 规模下清理差集可能不完整。
-- 影响：陈旧边/节点残留。
-- 建议：分页清理或游标化清理。
-
-3. Neo4j scope 语义冗余。
-- 位置：`Neo4jProjectionGraphStore` 的 `_scope` 字段。
-- 现象：构造注入 `scopeFactory`，但 `_scope` 基本不参与行为约束，仅用于日志。
-- 影响：配置心智负担增加，接口语义与实现不一致。
-- 建议：
-  1. 若不需要全局 scope 约束，删除 `scopeFactory` 与 `_scope` 字段。
-  2. 若需要约束，则在所有写/读入口强校验 `query.Scope == _scope`。
-
-### 5.3 Low
-
-1. Provider 大类过重（可维护性）。
-- `ElasticsearchProjectionDocumentStore` 712 行。
-- `Neo4jProjectionGraphStore` 691 行。
-- 建议：按职责拆分 `IndexBootstrap / DocumentMutation / QueryAdapter / CypherBuilder`。
-
-2. `IProjectionDocumentStore` 类型约束较宽。
-- 当前仅 `where TReadModel : class`。
-- 建议：若长期只服务 Projection ReadModel，可评估收紧为 `IProjectionReadModel`。
-
-### 5.4 证据索引（关键问题）
-
-1. 非事务分发路径：
-   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:55`
-   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:67`
-   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:71`
-   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:78`
-2. Graph 清理固定上限：
-   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs:44`
-   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs:53`
-3. Neo4j scope 冗余链路：
-   - `src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs:13`
-   - `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs:15`
-   - `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs:642`
-4. Runtime 默认 query binding 注入：
-   - `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:12`
-   - `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:13`
-5. Document store 类型约束：
-   - `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs:3`
-   - `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs:4`
+## 4. 分层评分（严格）
 
----
+| 维度 | 分数 | 结论 |
+|---|---:|---|
+| 分层边界 | 9.7 | `Stores.Abstractions -> Runtime.Abstractions -> Runtime -> Providers` 依赖方向正确。 |
+| 平行一致性（Document/Graph） | 9.8 | 抽象/绑定/Provider 三层均并列。 |
+| 一对多分发能力 | 9.6 | Dispatcher + Binding 主干清晰，写分发稳定。 |
+| 配置治理（同类 provider 唯一） | 9.7 | Host fail-fast 规则明确。 |
+| 类型契约严谨性 | 9.5 | DocumentStore 已收紧到 `IProjectionReadModel`。 |
+| 可维护性 | 9.2 | Provider 大类已拆 partial，但仍有继续下钻空间。 |
+| 可测试性 | 9.5 | 核心路径（分页清理、补偿、重试）已有测试。 |
 
-## 6. 冗余与重复审计结果
+- **最终总分：9.6 / 10**
 
-### 6.1 已清理（通过）
+---
 
-1. 旧 `Router/Fanout/Registration` 双轨层已移除。
-2. `IDocumentReadModel` marker 已移除。
-3. `GraphNodeDescriptor/GraphEdgeDescriptor` 双模型已移除。
-4. Document 命名已收敛为 `ProjectionDocumentStore` 体系。
+## 5. 全量类型打分（34/34）
 
-### 6.2 当前仍需关注（非阻塞）
+### 5.1 Stores.Abstractions
 
-1. Neo4j `scopeFactory` 冗余。
-2. 两个 Provider 超大类的职责聚合过多。
+| 类型 | 分数 | 结论 |
+|---|---:|---|
+| `IProjectionReadModel` | 9.6 | 主键语义最小充分。 |
+| `IGraphReadModel` | 9.6 | 直接表达图节点/边输入，语义清晰。 |
+| `IProjectionDocumentStore<TReadModel,TKey>` | 9.5 | 文档读模型契约完整，类型边界收敛。 |
+| `IProjectionGraphStore` | 9.4 | 图写入/查询/owner 管理接口完整。 |
+| `IProjectionDocumentMetadataProvider<TReadModel>` | 9.5 | 索引 metadata 来源明确。 |
+| `DocumentIndexMetadata` | 9.4 | 结构化索引定义，避免字符串拼装。 |
+| `ProjectionGraphNode` | 9.2 | 节点结构清晰。 |
+| `ProjectionGraphEdge` | 9.2 | 边结构清晰。 |
+| `ProjectionGraphDirection` | 9.7 | 方向语义清晰。 |
+| `ProjectionGraphQuery` | 9.4 | 查询参数完整。 |
+| `ProjectionGraphSubgraph` | 9.4 | 子图返回模型简洁。 |
+
+### 5.2 Runtime.Abstractions
+
+| 类型 | 分数 | 结论 |
+|---|---:|---|
+| `IProjectionStoreBinding<TReadModel,TKey>` | 9.5 | 最小写绑定抽象清楚。 |
+| `IProjectionQueryableStoreBinding<TReadModel,TKey>` | 9.3 | query 能力分离清楚。 |
+| `IProjectionStoreDispatcher<TReadModel,TKey>` | 9.5 | 单入口契约稳定。 |
+| `IProjectionStoreDispatchCompensator<TReadModel,TKey>` | 9.4 | 失败补偿扩展点合理。 |
+| `ProjectionStoreDispatchCompensationContext<TReadModel,TKey>` | 9.3 | 补偿上下文字段完整。 |
+| `ProjectionStoreDispatchOptions` | 9.3 | 重试策略配置简洁。 |
+| `IProjectionStoreBindingAvailability` | 9.5 | 绑定启用态显式化，解决无效 binding 冗余。 |
+| `IProjectionDocumentMetadataResolver` | 9.3 | metadata 解析契约清晰。 |
+| `ProjectionGraphManagedPropertyKeys` | 9.0 | 系统托管键集中定义，略偏实现细节。 |
+
+### 5.3 Runtime
+
+| 类型 | 分数 | 结论 |
+|---|---:|---|
+| `ProjectionStoreDispatcher<TReadModel,TKey>` | 9.5 | 一对多分发、补偿、重试、可选 query 绑定完整。 |
+| `ProjectionDocumentStoreBinding<TReadModel,TKey>` | 9.4 | 文档 binding 可配置感知，失配自动失活。 |
+| `ProjectionGraphStoreBinding<TReadModel,TKey>` | 9.4 | 图 binding 可配置感知 + owner 差集清理分页。 |
+| `ProjectionDocumentMetadataResolver` | 9.3 | 解析逻辑简洁。 |
+| `LoggingProjectionStoreDispatchCompensator<TReadModel,TKey>` | 9.2 | 默认补偿可观测性到位。 |
+| `ServiceCollectionExtensions` | 9.5 | Runtime 默认同层注册 Document/Graph binding。 |
 
----
+### 5.4 Providers.InMemory
 
-## 7. 测试覆盖审计
+| 类型 | 分数 | 结论 |
+|---|---:|---|
+| `InMemoryProjectionDocumentStore<TReadModel,TKey>` | 9.0 | 行为稳定，适合 dev/test。 |
+| `InMemoryProjectionGraphStore` | 8.9 | 图能力完整，生产事实源仍建议持久化后端。 |
+| `ServiceCollectionExtensions` | 9.3 | 注册语义清晰。 |
 
-### 7.1 已覆盖
+### 5.5 Providers.Elasticsearch
 
-1. Dispatcher 核心行为：
-   - 多 binding 写入
-   - query binding 唯一性约束
-2. Graph binding 生命周期行为：
-   - owner 差集删除
-   - 跨 owner 隔离
-   - 空 Id fail-fast
-3. Elasticsearch 行为：
-   - 缺失索引策略
-   - OCC 重试
-   - 索引元数据结构化初始化
-4. Workflow Host 组合：
-   - Provider 单实现约束
-   - 组合注册 idempotent
+| 类型 | 分数 | 结论 |
+|---|---:|---|
+| `ElasticsearchProjectionDocumentStore<TReadModel,TKey>` | 9.0 | OCC、索引初始化、query 路径完整；已拆 partial 降复杂度。 |
+| `ElasticsearchProjectionDocumentStoreOptions` | 9.3 | 配置项完整。 |
+| `ElasticsearchMissingIndexBehavior` | 9.4 | 缺索引策略清晰。 |
+| `ServiceCollectionExtensions` | 9.3 | DI 装配一致。 |
 
-### 7.2 建议补测
+### 5.6 Providers.Neo4j
 
-1. `ProjectionStoreDispatcher` 写入失败补偿/告警行为（当前无契约测试）。
-2. `ProjectionGraphStoreBinding` 在超大 owner（>50k）时的清理分页行为。
-3. `Neo4jProjectionGraphStore` scope 约束行为（若决定保留 `_scope`）。
+| 类型 | 分数 | 结论 |
+|---|---:|---|
+| `Neo4jProjectionGraphStore` | 8.9 | 图能力完整，已拆 partial；维护复杂度仍偏高。 |
+| `Neo4jProjectionGraphStoreOptions` | 9.3 | 配置边界清晰。 |
+| `ServiceCollectionExtensions` | 9.4 | scope 冗余已清理，装配简化。 |
 
 ---
 
-## 8. 分层与依赖反转审计
-
-结论：**通过**。
+## 6. 冗余审计结果
 
-1. `Stores.Abstractions` 无额外依赖，保持最小内核。
-2. `Runtime.Abstractions` 仅依赖 `Stores.Abstractions`。
-3. `Runtime` 依赖 Runtime/Stores 抽象，不依赖业务层。
-4. Provider 项目仅依赖抽象与通用基础包，不依赖 Workflow/AI 业务项目。
+### 6.1 已彻底清理（通过）
 
----
-
-## 9. 综合评分明细
+1. 旧 `Router/Fanout/Registration` 双轨投影存储模型已移除。
+2. Neo4j `scopeFactory` / `_scope` 语义冗余已移除。
+3. Graph owner 清理固定 50k 上限语义已改为分页扫描（`skip/take`）。
+4. Dispatcher 增加失败重试 + 补偿扩展，不再是“失败即中断且无策略”。
+5. Runtime 默认 Document/Graph 同层 binding 注册，Workflow 不再手工拼接 Graph binding。
 
-| 维度 | 分数 | 说明 |
-|---|---:|---|
-| 分层清晰度 | 9.4 | 分层边界清晰，依赖方向正确。 |
-| 平行一致性（Document/Graph） | 9.5 | 三层结构平行，命名已统一。 |
-| 一对多模型完备度 | 9.2 | Dispatcher/Binding 语义完整。 |
-| 冗余清理彻底性 | 9.0 | 旧体系已删，少量语义冗余尚存。 |
-| 可维护性 | 8.4 | 两个 Provider 大类过重。 |
-| 可扩展性 | 9.1 | Binding 扩展点清晰。 |
-| 可测试性 | 9.0 | 核心路径有测试，补偿/规模化场景需补测。 |
-| 运行稳定性 | 8.9 | 现有模型可用，但需明确非事务一致性语义。 |
+### 6.2 当前剩余关注点（低优先级）
 
-- **最终得分：9.1 / 10**
+1. `ElasticsearchProjectionDocumentStore` 与 `Neo4jProjectionGraphStore` 虽已拆 partial，但业务复杂度仍高。
+2. Graph query 与 Document query 的统一查询门面暂未抽象（当前是能力有意分离，不是架构错误）。
 
 ---
 
-## 10. 建议实施顺序（P0/P1/P2）
+## 7. 并行一致性矩阵（Document vs Graph）
 
-1. P0：确定 Neo4j scope 语义（删除或强约束）。
-2. P1：为 Dispatcher 增加失败补偿扩展点与可观测日志。
-3. P1：Graph owner 清理改为分页/游标模式，移除固定 50k 上限。
-4. P2：拆分 Elasticsearch/Neo4j 大类，降低维护复杂度。
+| 层级 | Document | Graph | 结论 |
+|---|---|---|---|
+| 抽象层 | `IProjectionDocumentStore<TReadModel,TKey>` | `IProjectionGraphStore` | 同层并列 |
+| ReadModel 契约 | `IProjectionReadModel` + metadata provider | `IGraphReadModel` | 同层并列 |
+| Runtime 绑定 | `ProjectionDocumentStoreBinding` | `ProjectionGraphStoreBinding` | 同层并列 |
+| Provider 实现 | InMemory / Elasticsearch | InMemory / Neo4j | 同层并列 |
+| Host 选择策略 | 同类 provider 必须 1 个 | 同类 provider 必须 1 个 | 对称 |
 
 ---
 
-## 11. 审计结语
+## 8. 关键实现证据（摘录）
 
-Projection Store 当前架构已经达到“单主干 + Document/Graph 平行 + ReadModel 一对多投影”的目标态。
-当前最需要处理的不是重做模型，而是收敛少量语义冗余并降低大类复杂度。
+1. Store 并列抽象：
+   - `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs`
+   - `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs`
+2. Runtime 并列绑定注册：
+   - `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs`
+3. 一对多分发：
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs`
+4. Graph binding 自动失活条件（非图模型/无 graph store）：
+   - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs`
+5. Workflow 同类 provider 唯一约束：
+   - `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
 
 ---
 
-## 附录 A：31 个类声明位置（文件:行号）
-
-```text
-src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchMissingIndexBehavior.cs:3:public enum ElasticsearchMissingIndexBehavior
-src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionDocumentStoreOptions.cs:3:public sealed class ElasticsearchProjectionDocumentStoreOptions
-src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs:8:public static class ServiceCollectionExtensions
-src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs:11:public sealed class ElasticsearchProjectionDocumentStore<TReadModel, TKey>
-src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs:7:public static class ServiceCollectionExtensions
-src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs:7:public sealed class InMemoryProjectionDocumentStore<TReadModel, TKey>
-src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs:5:public sealed class InMemoryProjectionGraphStore
-src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionGraphStoreOptions.cs:3:public sealed class Neo4jProjectionGraphStoreOptions
-src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs:8:public static class ServiceCollectionExtensions
-src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs:9:public sealed class Neo4jProjectionGraphStore
-src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphManagedPropertyKeys.cs:3:public static class ProjectionGraphManagedPropertyKeys
-src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs:3:public interface IProjectionDocumentMetadataResolver
-src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionQueryableStoreBinding.cs:3:public interface IProjectionQueryableStoreBinding<TReadModel, in TKey>
-src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBinding.cs:3:public interface IProjectionStoreBinding<in TReadModel, in TKey>
-src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatcher.cs:3:public interface IProjectionStoreDispatcher<TReadModel, in TKey>
-src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:7:public static class ServiceCollectionExtensions
-src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs:5:public sealed class ProjectionDocumentMetadataResolver : IProjectionDocumentMetadataResolver
-src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs:3:public sealed class ProjectionDocumentStoreBinding<TReadModel, TKey>
-src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs:3:public sealed class ProjectionGraphStoreBinding<TReadModel, TKey>
-src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:6:public sealed class ProjectionStoreDispatcher<TReadModel, TKey>
-src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs:3:public interface IProjectionGraphStore
-src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphDirection.cs:3:public enum ProjectionGraphDirection
-src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphEdge.cs:3:public sealed class ProjectionGraphEdge
-src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphNode.cs:3:public sealed class ProjectionGraphNode
-src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphQuery.cs:3:public sealed class ProjectionGraphQuery
-src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSubgraph.cs:3:public sealed class ProjectionGraphSubgraph
-src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/DocumentIndexMetadata.cs:3:public sealed record DocumentIndexMetadata(
-src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphReadModel.cs:3:public interface IGraphReadModel : IProjectionReadModel
-src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs:3:public interface IProjectionDocumentMetadataProvider<out TReadModel>
-src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs:3:public interface IProjectionDocumentStore<TReadModel, in TKey>
-src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModel.cs:3:public interface IProjectionReadModel
-```
+## 9. 最终裁决
+
+- `DocumentStore` 与 `GraphStore`：**平行关系，已通过严格审计**。
+- `一个 ReadModel -> 多个 Store`：**主干稳定成立，已通过严格审计**。
+- “同类 Provider 只一个”治理：**Workflow Host 层强约束通过**。
+- 架构状态：**可进入持续演进阶段，当前不再存在阻断级冗余问题**。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index cfb3d4657..5e26c583e 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -13,7 +13,7 @@ public static IServiceCollection AddElasticsearchDocumentProjectionStore<TReadMo
         Func<IServiceProvider, DocumentIndexMetadata> metadataFactory,
         Func<TReadModel, TKey> keySelector,
         Func<TKey, string>? keyFormatter = null)
-        where TReadModel : class
+        where TReadModel : class, IProjectionReadModel
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
         ArgumentNullException.ThrowIfNull(metadataFactory);
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Helpers.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Helpers.cs
new file mode 100644
index 000000000..b733c4e30
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Helpers.cs
@@ -0,0 +1,320 @@
+using System.Net;
+using System.Text;
+using System.Text.Json;
+
+namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+
+public sealed partial class ElasticsearchProjectionDocumentStore<TReadModel, TKey>
+{
+    private string BuildListPayloadJson(int size)
+    {
+        var sort = _listSortField.Length == 0
+            ? BuildDefaultSortSpec()
+            : BuildConfiguredSortSpec(_listSortField);
+
+        return JsonSerializer.Serialize(new
+        {
+            size,
+            sort,
+            query = new
+            {
+                match_all = new { },
+            },
+        });
+    }
+
+    private static object[] BuildConfiguredSortSpec(string sortField)
+    {
+        return
+        [
+            new Dictionary<string, object>
+            {
+                [sortField] = new Dictionary<string, object>
+                {
+                    ["order"] = "desc",
+                },
+            },
+            new Dictionary<string, object>
+            {
+                [DefaultListTiebreakSortField] = new Dictionary<string, object>
+                {
+                    ["order"] = "desc",
+                },
+            },
+        ];
+    }
+
+    private static object[] BuildDefaultSortSpec()
+    {
+        return
+        [
+            new Dictionary<string, object>
+            {
+                [DefaultListPrimarySortField] = new Dictionary<string, object>
+                {
+                    ["order"] = "desc",
+                    ["missing"] = "_last",
+                    ["unmapped_type"] = "date",
+                },
+            },
+            new Dictionary<string, object>
+            {
+                [DefaultListTiebreakSortField] = new Dictionary<string, object>
+                {
+                    ["order"] = "desc",
+                },
+            },
+        ];
+    }
+
+    private async Task EnsureIndexAsync(CancellationToken ct)
+    {
+        if (!_autoCreateIndex || _indexInitialized)
+            return;
+
+        await _indexInitializationLock.WaitAsync(ct);
+        try
+        {
+            if (_indexInitialized)
+                return;
+
+            var payload = BuildIndexInitializationPayload();
+            using var request = new HttpRequestMessage(HttpMethod.Put, _indexName)
+            {
+                Content = new StringContent(payload, Encoding.UTF8, "application/json"),
+            };
+            using var response = await _httpClient.SendAsync(request, ct);
+            if (response.IsSuccessStatusCode)
+            {
+                _indexInitialized = true;
+                return;
+            }
+
+            var responsePayload = await response.Content.ReadAsStringAsync(ct);
+            if (response.StatusCode == HttpStatusCode.BadRequest &&
+                responsePayload.Contains("resource_already_exists_exception", StringComparison.OrdinalIgnoreCase))
+            {
+                _indexInitialized = true;
+                return;
+            }
+
+            throw new InvalidOperationException(
+                $"Elasticsearch index initialization failed for '{_indexName}': {(int)response.StatusCode} {response.ReasonPhrase}. body={responsePayload}");
+        }
+        finally
+        {
+            _indexInitializationLock.Release();
+        }
+    }
+
+    private string BuildIndexInitializationPayload()
+    {
+        var mappings = _indexMetadata.Mappings.Count == 0
+            ? new Dictionary<string, object?>(StringComparer.Ordinal)
+            {
+                ["dynamic"] = true,
+            }
+            : new Dictionary<string, object?>(_indexMetadata.Mappings, StringComparer.Ordinal);
+
+        var root = new Dictionary<string, object?>
+        {
+            ["mappings"] = mappings,
+        };
+
+        if (_indexMetadata.Settings.Count > 0)
+            root["settings"] = new Dictionary<string, object?>(_indexMetadata.Settings, StringComparer.Ordinal);
+        if (_indexMetadata.Aliases.Count > 0)
+            root["aliases"] = new Dictionary<string, object?>(_indexMetadata.Aliases, StringComparer.Ordinal);
+
+        return JsonSerializer.Serialize(root, _jsonOptions);
+    }
+
+    private static DocumentIndexMetadata NormalizeMetadata(DocumentIndexMetadata metadata)
+    {
+        ArgumentNullException.ThrowIfNull(metadata);
+        var normalizedMappings = NormalizeObjectMap(metadata.Mappings, "DocumentIndexMetadata.Mappings");
+        var normalizedSettings = NormalizeObjectMap(metadata.Settings, "DocumentIndexMetadata.Settings");
+        var normalizedAliases = NormalizeObjectMap(metadata.Aliases, "DocumentIndexMetadata.Aliases");
+        return new DocumentIndexMetadata(
+            metadata.IndexName?.Trim() ?? "",
+            normalizedMappings,
+            normalizedSettings,
+            normalizedAliases);
+    }
+
+    private static Dictionary<string, object?> NormalizeObjectMap(
+        IReadOnlyDictionary<string, object?> source,
+        string context)
+    {
+        ArgumentNullException.ThrowIfNull(source);
+        var normalized = new Dictionary<string, object?>(StringComparer.Ordinal);
+        foreach (var pair in source)
+        {
+            var key = pair.Key?.Trim() ?? "";
+            if (key.Length == 0)
+                throw new InvalidOperationException($"{context} contains an empty key.");
+
+            normalized[key] = NormalizeObjectValue(pair.Value, $"{context}['{key}']");
+        }
+
+        return normalized;
+    }
+
+    private static object? NormalizeObjectValue(object? value, string context)
+    {
+        if (value == null)
+            return null;
+
+        if (value is string ||
+            value is bool ||
+            value is byte ||
+            value is sbyte ||
+            value is short ||
+            value is ushort ||
+            value is int ||
+            value is uint ||
+            value is long ||
+            value is ulong ||
+            value is float ||
+            value is double ||
+            value is decimal)
+        {
+            return value;
+        }
+
+        if (value is JsonElement jsonElement)
+            return NormalizeJsonElement(jsonElement, context);
+
+        if (value is IReadOnlyDictionary<string, object?> readonlyObjectMap)
+            return NormalizeObjectMap(readonlyObjectMap, context);
+
+        if (value is IDictionary<string, object?> mutableObjectMap)
+            return NormalizeObjectMap(
+                new Dictionary<string, object?>(mutableObjectMap, StringComparer.Ordinal),
+                context);
+
+        if (value is IReadOnlyDictionary<string, string> readonlyStringMap)
+        {
+            var converted = readonlyStringMap.ToDictionary(
+                x => x.Key,
+                x => (object?)x.Value,
+                StringComparer.Ordinal);
+            return NormalizeObjectMap(converted, context);
+        }
+
+        if (value is IDictionary<string, string> mutableStringMap)
+        {
+            var converted = mutableStringMap.ToDictionary(
+                x => x.Key,
+                x => (object?)x.Value,
+                StringComparer.Ordinal);
+            return NormalizeObjectMap(converted, context);
+        }
+
+        if (value is IEnumerable<object?> objectSequence)
+            return objectSequence.Select((x, i) => NormalizeObjectValue(x, $"{context}[{i}]")).ToList();
+
+        if (value is IEnumerable<string> stringSequence)
+            return stringSequence.Cast<object?>().ToList();
+
+        throw new InvalidOperationException(
+            $"{context} contains unsupported value type '{value.GetType().FullName}'.");
+    }
+
+    private static object? NormalizeJsonElement(JsonElement element, string context)
+    {
+        return element.ValueKind switch
+        {
+            JsonValueKind.Object => element
+                .EnumerateObject()
+                .ToDictionary(
+                    x => x.Name,
+                    x => NormalizeJsonElement(x.Value, $"{context}['{x.Name}']"),
+                    StringComparer.Ordinal),
+            JsonValueKind.Array => element
+                .EnumerateArray()
+                .Select((x, i) => NormalizeJsonElement(x, $"{context}[{i}]"))
+                .ToList(),
+            JsonValueKind.String => element.GetString(),
+            JsonValueKind.Number => NormalizeJsonNumber(element, context),
+            JsonValueKind.True => true,
+            JsonValueKind.False => false,
+            JsonValueKind.Null => null,
+            JsonValueKind.Undefined => null,
+            _ => throw new InvalidOperationException(
+                $"{context} contains unsupported json value kind '{element.ValueKind}'."),
+        };
+    }
+
+    private static object NormalizeJsonNumber(JsonElement numberElement, string context)
+    {
+        if (numberElement.TryGetInt64(out var int64Value))
+            return int64Value;
+        if (numberElement.TryGetDecimal(out var decimalValue))
+            return decimalValue;
+        if (numberElement.TryGetDouble(out var doubleValue))
+            return doubleValue;
+
+        throw new InvalidOperationException($"{context} contains an invalid JSON number value.");
+    }
+
+    private static async Task EnsureSuccessAsync(
+        HttpResponseMessage response,
+        string operation,
+        CancellationToken ct)
+    {
+        if (response.IsSuccessStatusCode)
+            return;
+
+        var payload = await response.Content.ReadAsStringAsync(ct);
+        throw new InvalidOperationException(
+            $"Elasticsearch {operation} failed: {(int)response.StatusCode} {response.ReasonPhrase}. body={payload}");
+    }
+
+    private static Uri ResolvePrimaryEndpoint(IReadOnlyList<string>? endpoints)
+    {
+        if (endpoints == null || endpoints.Count == 0)
+            throw new InvalidOperationException("Elasticsearch provider requires at least one endpoint.");
+
+        var endpoint = endpoints[0].Trim();
+        if (endpoint.Length == 0)
+            throw new InvalidOperationException("Elasticsearch endpoint cannot be empty.");
+        if (!endpoint.Contains("://", StringComparison.Ordinal))
+            endpoint = "http://" + endpoint;
+
+        if (!Uri.TryCreate(endpoint, UriKind.Absolute, out var uri))
+            throw new InvalidOperationException($"Invalid Elasticsearch endpoint '{endpoints[0]}'.");
+
+        return uri;
+    }
+
+    private static string BuildIndexName(string indexPrefix, string indexScope)
+    {
+        var prefix = NormalizeToken(indexPrefix);
+        if (prefix.Length == 0)
+            prefix = "aevatar";
+        return $"{prefix}-{indexScope}";
+    }
+
+    private static string NormalizeToken(string token)
+    {
+        if (string.IsNullOrWhiteSpace(token))
+            return "";
+
+        var chars = token
+            .Trim()
+            .ToLowerInvariant()
+            .Select(ch => char.IsLetterOrDigit(ch) ? ch : '-')
+            .ToArray();
+        return new string(chars).Trim('-');
+    }
+
+    private static string TruncatePayload(string payload)
+    {
+        const int maxLength = 512;
+        if (payload.Length <= maxLength)
+            return payload;
+
+        return payload[..maxLength] + "...(truncated)";
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs
index 84334f187..e966654dd 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs
@@ -8,10 +8,10 @@
 
 namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
 
-public sealed class ElasticsearchProjectionDocumentStore<TReadModel, TKey>
+public sealed partial class ElasticsearchProjectionDocumentStore<TReadModel, TKey>
     : IProjectionDocumentStore<TReadModel, TKey>,
       IDisposable
-    where TReadModel : class
+    where TReadModel : class, IProjectionReadModel
 {
     private const string ProviderName = "Elasticsearch";
     private const string DefaultListPrimarySortField = "CreatedAt";
@@ -382,318 +382,6 @@ private string FormatKey(TKey key)
         return JsonSerializer.Deserialize<TReadModel>(copyPayload, _jsonOptions);
     }
 
-    private string BuildListPayloadJson(int size)
-    {
-        var sort = _listSortField.Length == 0
-            ? BuildDefaultSortSpec()
-            : BuildConfiguredSortSpec(_listSortField);
-
-        return JsonSerializer.Serialize(new
-        {
-            size,
-            sort,
-            query = new
-            {
-                match_all = new { },
-            },
-        });
-    }
-
-    private static object[] BuildConfiguredSortSpec(string sortField)
-    {
-        return
-        [
-            new Dictionary<string, object>
-            {
-                [sortField] = new Dictionary<string, object>
-                {
-                    ["order"] = "desc",
-                },
-            },
-            new Dictionary<string, object>
-            {
-                [DefaultListTiebreakSortField] = new Dictionary<string, object>
-                {
-                    ["order"] = "desc",
-                },
-            },
-        ];
-    }
-
-    private static object[] BuildDefaultSortSpec()
-    {
-        return
-        [
-            new Dictionary<string, object>
-            {
-                [DefaultListPrimarySortField] = new Dictionary<string, object>
-                {
-                    ["order"] = "desc",
-                    ["missing"] = "_last",
-                    ["unmapped_type"] = "date",
-                },
-            },
-            new Dictionary<string, object>
-            {
-                [DefaultListTiebreakSortField] = new Dictionary<string, object>
-                {
-                    ["order"] = "desc",
-                },
-            },
-        ];
-    }
-
-    private async Task EnsureIndexAsync(CancellationToken ct)
-    {
-        if (!_autoCreateIndex || _indexInitialized)
-            return;
-
-        await _indexInitializationLock.WaitAsync(ct);
-        try
-        {
-            if (_indexInitialized)
-                return;
-
-            var payload = BuildIndexInitializationPayload();
-            using var request = new HttpRequestMessage(HttpMethod.Put, _indexName)
-            {
-                Content = new StringContent(payload, Encoding.UTF8, "application/json"),
-            };
-            using var response = await _httpClient.SendAsync(request, ct);
-            if (response.IsSuccessStatusCode)
-            {
-                _indexInitialized = true;
-                return;
-            }
-
-            var responsePayload = await response.Content.ReadAsStringAsync(ct);
-            if (response.StatusCode == HttpStatusCode.BadRequest &&
-                responsePayload.Contains("resource_already_exists_exception", StringComparison.OrdinalIgnoreCase))
-            {
-                _indexInitialized = true;
-                return;
-            }
-
-            throw new InvalidOperationException(
-                $"Elasticsearch index initialization failed for '{_indexName}': {(int)response.StatusCode} {response.ReasonPhrase}. body={responsePayload}");
-        }
-        finally
-        {
-            _indexInitializationLock.Release();
-        }
-    }
-
-    private string BuildIndexInitializationPayload()
-    {
-        var mappings = _indexMetadata.Mappings.Count == 0
-            ? new Dictionary<string, object?>(StringComparer.Ordinal)
-            {
-                ["dynamic"] = true,
-            }
-            : new Dictionary<string, object?>(_indexMetadata.Mappings, StringComparer.Ordinal);
-
-        var root = new Dictionary<string, object?>
-        {
-            ["mappings"] = mappings,
-        };
-
-        if (_indexMetadata.Settings.Count > 0)
-            root["settings"] = new Dictionary<string, object?>(_indexMetadata.Settings, StringComparer.Ordinal);
-        if (_indexMetadata.Aliases.Count > 0)
-            root["aliases"] = new Dictionary<string, object?>(_indexMetadata.Aliases, StringComparer.Ordinal);
-
-        return JsonSerializer.Serialize(root, _jsonOptions);
-    }
-
-    private static DocumentIndexMetadata NormalizeMetadata(DocumentIndexMetadata metadata)
-    {
-        ArgumentNullException.ThrowIfNull(metadata);
-        var normalizedMappings = NormalizeObjectMap(metadata.Mappings, "DocumentIndexMetadata.Mappings");
-        var normalizedSettings = NormalizeObjectMap(metadata.Settings, "DocumentIndexMetadata.Settings");
-        var normalizedAliases = NormalizeObjectMap(metadata.Aliases, "DocumentIndexMetadata.Aliases");
-        return new DocumentIndexMetadata(
-            metadata.IndexName?.Trim() ?? "",
-            normalizedMappings,
-            normalizedSettings,
-            normalizedAliases);
-    }
-
-    private static Dictionary<string, object?> NormalizeObjectMap(
-        IReadOnlyDictionary<string, object?> source,
-        string context)
-    {
-        ArgumentNullException.ThrowIfNull(source);
-        var normalized = new Dictionary<string, object?>(StringComparer.Ordinal);
-        foreach (var pair in source)
-        {
-            var key = pair.Key?.Trim() ?? "";
-            if (key.Length == 0)
-                throw new InvalidOperationException($"{context} contains an empty key.");
-
-            normalized[key] = NormalizeObjectValue(pair.Value, $"{context}['{key}']");
-        }
-
-        return normalized;
-    }
-
-    private static object? NormalizeObjectValue(object? value, string context)
-    {
-        if (value == null)
-            return null;
-
-        if (value is string ||
-            value is bool ||
-            value is byte ||
-            value is sbyte ||
-            value is short ||
-            value is ushort ||
-            value is int ||
-            value is uint ||
-            value is long ||
-            value is ulong ||
-            value is float ||
-            value is double ||
-            value is decimal)
-        {
-            return value;
-        }
-
-        if (value is JsonElement jsonElement)
-            return NormalizeJsonElement(jsonElement, context);
-
-        if (value is IReadOnlyDictionary<string, object?> readonlyObjectMap)
-            return NormalizeObjectMap(readonlyObjectMap, context);
-
-        if (value is IDictionary<string, object?> mutableObjectMap)
-            return NormalizeObjectMap(
-                new Dictionary<string, object?>(mutableObjectMap, StringComparer.Ordinal),
-                context);
-
-        if (value is IReadOnlyDictionary<string, string> readonlyStringMap)
-        {
-            var converted = readonlyStringMap.ToDictionary(
-                x => x.Key,
-                x => (object?)x.Value,
-                StringComparer.Ordinal);
-            return NormalizeObjectMap(converted, context);
-        }
-
-        if (value is IDictionary<string, string> mutableStringMap)
-        {
-            var converted = mutableStringMap.ToDictionary(
-                x => x.Key,
-                x => (object?)x.Value,
-                StringComparer.Ordinal);
-            return NormalizeObjectMap(converted, context);
-        }
-
-        if (value is IEnumerable<object?> objectSequence)
-            return objectSequence.Select((x, i) => NormalizeObjectValue(x, $"{context}[{i}]")).ToList();
-
-        if (value is IEnumerable<string> stringSequence)
-            return stringSequence.Cast<object?>().ToList();
-
-        throw new InvalidOperationException(
-            $"{context} contains unsupported value type '{value.GetType().FullName}'.");
-    }
-
-    private static object? NormalizeJsonElement(JsonElement element, string context)
-    {
-        return element.ValueKind switch
-        {
-            JsonValueKind.Object => element
-                .EnumerateObject()
-                .ToDictionary(
-                    x => x.Name,
-                    x => NormalizeJsonElement(x.Value, $"{context}['{x.Name}']"),
-                    StringComparer.Ordinal),
-            JsonValueKind.Array => element
-                .EnumerateArray()
-                .Select((x, i) => NormalizeJsonElement(x, $"{context}[{i}]"))
-                .ToList(),
-            JsonValueKind.String => element.GetString(),
-            JsonValueKind.Number => NormalizeJsonNumber(element, context),
-            JsonValueKind.True => true,
-            JsonValueKind.False => false,
-            JsonValueKind.Null => null,
-            JsonValueKind.Undefined => null,
-            _ => throw new InvalidOperationException(
-                $"{context} contains unsupported json value kind '{element.ValueKind}'."),
-        };
-    }
-
-    private static object NormalizeJsonNumber(JsonElement numberElement, string context)
-    {
-        if (numberElement.TryGetInt64(out var int64Value))
-            return int64Value;
-        if (numberElement.TryGetDecimal(out var decimalValue))
-            return decimalValue;
-        if (numberElement.TryGetDouble(out var doubleValue))
-            return doubleValue;
-
-        throw new InvalidOperationException($"{context} contains an invalid JSON number value.");
-    }
-
-    private static async Task EnsureSuccessAsync(
-        HttpResponseMessage response,
-        string operation,
-        CancellationToken ct)
-    {
-        if (response.IsSuccessStatusCode)
-            return;
-
-        var payload = await response.Content.ReadAsStringAsync(ct);
-        throw new InvalidOperationException(
-            $"Elasticsearch {operation} failed: {(int)response.StatusCode} {response.ReasonPhrase}. body={payload}");
-    }
-
-    private static Uri ResolvePrimaryEndpoint(IReadOnlyList<string>? endpoints)
-    {
-        if (endpoints == null || endpoints.Count == 0)
-            throw new InvalidOperationException("Elasticsearch provider requires at least one endpoint.");
-
-        var endpoint = endpoints[0].Trim();
-        if (endpoint.Length == 0)
-            throw new InvalidOperationException("Elasticsearch endpoint cannot be empty.");
-        if (!endpoint.Contains("://", StringComparison.Ordinal))
-            endpoint = "http://" + endpoint;
-
-        if (!Uri.TryCreate(endpoint, UriKind.Absolute, out var uri))
-            throw new InvalidOperationException($"Invalid Elasticsearch endpoint '{endpoints[0]}'.");
-
-        return uri;
-    }
-
-    private static string BuildIndexName(string indexPrefix, string indexScope)
-    {
-        var prefix = NormalizeToken(indexPrefix);
-        if (prefix.Length == 0)
-            prefix = "aevatar";
-        return $"{prefix}-{indexScope}";
-    }
-
-    private static string NormalizeToken(string token)
-    {
-        if (string.IsNullOrWhiteSpace(token))
-            return "";
-
-        var chars = token
-            .Trim()
-            .ToLowerInvariant()
-            .Select(ch => char.IsLetterOrDigit(ch) ? ch : '-')
-            .ToArray();
-        return new string(chars).Trim('-');
-    }
-
-    private static string TruncatePayload(string payload)
-    {
-        const int maxLength = 512;
-        if (payload.Length <= maxLength)
-            return payload;
-
-        return payload[..maxLength] + "...(truncated)";
-    }
-
     public void Dispose()
     {
         _httpClient.Dispose();
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index 4f65f38d8..4694ca1b3 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -12,7 +12,7 @@ public static IServiceCollection AddInMemoryDocumentProjectionStore<TReadModel,
         Func<TKey, string>? keyFormatter = null,
         Func<TReadModel, object?>? listSortSelector = null,
         int listTakeMax = 200)
-        where TReadModel : class
+        where TReadModel : class, IProjectionReadModel
     {
         ArgumentNullException.ThrowIfNull(keySelector);
 
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs
index 391a3958c..485d07f90 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs
@@ -6,7 +6,7 @@ namespace Aevatar.CQRS.Projection.Providers.InMemory.Stores;
 
 public sealed class InMemoryProjectionDocumentStore<TReadModel, TKey>
     : IProjectionDocumentStore<TReadModel, TKey>
-    where TReadModel : class
+    where TReadModel : class, IProjectionReadModel
 {
     private const string ProviderName = "InMemory";
     private readonly object _gate = new();
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
index cd5eb427a..80ba32546 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs
@@ -78,6 +78,7 @@ public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct =
     public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
         string scope,
         string ownerId,
+        int skip = 0,
         int take = 5000,
         CancellationToken ct = default)
     {
@@ -88,6 +89,7 @@ public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
             return Task.FromResult<IReadOnlyList<ProjectionGraphNode>>([]);
 
         var boundedTake = Math.Clamp(take, 1, 50000);
+        var boundedSkip = Math.Max(0, skip);
         List<ProjectionGraphNode> nodes;
         lock (_gate)
         {
@@ -97,6 +99,7 @@ public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
                     x.Properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var nodeOwnerId) &&
                     string.Equals(NormalizeToken(nodeOwnerId), ownerValue, StringComparison.Ordinal))
                 .OrderByDescending(x => x.UpdatedAt)
+                .Skip(boundedSkip)
                 .Take(boundedTake)
                 .Select(CloneNode)
                 .ToList();
@@ -108,6 +111,7 @@ public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
     public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
         string scope,
         string ownerId,
+        int skip = 0,
         int take = 5000,
         CancellationToken ct = default)
     {
@@ -118,6 +122,7 @@ public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
             return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>([]);
 
         var boundedTake = Math.Clamp(take, 1, 50000);
+        var boundedSkip = Math.Max(0, skip);
         List<ProjectionGraphEdge> edges;
         lock (_gate)
         {
@@ -127,6 +132,7 @@ public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
                     x.Properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var edgeOwnerId) &&
                     string.Equals(NormalizeToken(edgeOwnerId), ownerValue, StringComparison.Ordinal))
                 .OrderByDescending(x => x.UpdatedAt)
+                .Skip(boundedSkip)
                 .Take(boundedTake)
                 .Select(CloneEdge)
                 .ToList();
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index 47ef3fcb2..22432bcfc 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -9,16 +9,13 @@ public static class ServiceCollectionExtensions
 {
     public static IServiceCollection AddNeo4jGraphProjectionStore(
         this IServiceCollection services,
-        Func<IServiceProvider, Neo4jProjectionGraphStoreOptions> optionsFactory,
-        Func<IServiceProvider, string> scopeFactory)
+        Func<IServiceProvider, Neo4jProjectionGraphStoreOptions> optionsFactory)
     {
         ArgumentNullException.ThrowIfNull(optionsFactory);
-        ArgumentNullException.ThrowIfNull(scopeFactory);
 
         services.AddSingleton<IProjectionGraphStore>(provider =>
             new Neo4jProjectionGraphStore(
                 optionsFactory(provider),
-                scopeFactory(provider),
                 provider.GetService<ILogger<Neo4jProjectionGraphStore>>()));
 
         return services;
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Helpers.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Helpers.cs
new file mode 100644
index 000000000..d5ca9eced
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Helpers.cs
@@ -0,0 +1,318 @@
+using System.Text.Json;
+using Microsoft.Extensions.Logging;
+using Neo4j.Driver;
+
+namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
+
+public sealed partial class Neo4jProjectionGraphStore
+{
+    private async Task<List<ProjectionGraphNode>> GetNodesByIdsAsync(
+        string scope,
+        IReadOnlySet<string> nodeIds,
+        CancellationToken ct)
+    {
+        if (nodeIds.Count == 0)
+            return [];
+
+        await EnsureSchemaAsync(ct);
+        var cypher = $"MATCH (n:{_nodeLabel} {{scope: $scope}}) " +
+                     "WHERE n.nodeId IN $nodeIds " +
+                     "RETURN n.nodeId AS nodeId, " +
+                     "coalesce(n.nodeType, '') AS nodeType, " +
+                     "coalesce(n.propertiesJson, '{}') AS propertiesJson, " +
+                     "coalesce(n.updatedAtEpochMs, 0) AS updatedAtEpochMs";
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = scope,
+            ["nodeIds"] = nodeIds.ToArray(),
+        };
+
+        var rows = await ExecuteReadAsync(cypher, parameters, ct);
+        var nodes = new List<ProjectionGraphNode>(rows.Count);
+        foreach (var row in rows)
+        {
+            if (!row.TryGetValue("nodeId", out var nodeIdValue))
+                continue;
+            var nodeId = NormalizeToken(nodeIdValue.As<string>());
+            if (nodeId.Length == 0)
+                continue;
+
+            var nodeType = row.TryGetValue("nodeType", out var nodeTypeValue)
+                ? NormalizeToken(nodeTypeValue.As<string>())
+                : "Unknown";
+            if (nodeType.Length == 0)
+                nodeType = "Unknown";
+
+            var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
+                ? propertiesJsonValue.As<string>()
+                : "{}";
+            var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
+                ? updatedAtEpochMsValue.As<long>()
+                : 0L;
+
+            nodes.Add(new ProjectionGraphNode
+            {
+                Scope = scope,
+                NodeId = nodeId,
+                NodeType = nodeType,
+                Properties = DeserializeProperties(propertiesJson),
+                UpdatedAt = FromUnixTimeMilliseconds(updatedAtEpochMs),
+            });
+        }
+
+        return nodes;
+    }
+
+    private ProjectionGraphEdge? BuildEdgeFromRow(string scope, IReadOnlyDictionary<string, object> row)
+    {
+        if (!row.TryGetValue("edgeId", out var edgeIdValue))
+            return null;
+        if (!row.TryGetValue("fromNodeId", out var fromNodeIdValue))
+            return null;
+        if (!row.TryGetValue("toNodeId", out var toNodeIdValue))
+            return null;
+
+        var edgeId = NormalizeToken(edgeIdValue.As<string>());
+        var fromNodeId = NormalizeToken(fromNodeIdValue.As<string>());
+        var toNodeId = NormalizeToken(toNodeIdValue.As<string>());
+        if (edgeId.Length == 0 || fromNodeId.Length == 0 || toNodeId.Length == 0)
+            return null;
+
+        var relationType = row.TryGetValue("relationType", out var relationTypeValue)
+            ? NormalizeToken(relationTypeValue.As<string>())
+            : "Unknown";
+        if (relationType.Length == 0)
+            relationType = "Unknown";
+        var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
+            ? propertiesJsonValue.As<string>()
+            : "{}";
+        var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
+            ? updatedAtEpochMsValue.As<long>()
+            : 0L;
+
+        return new ProjectionGraphEdge
+        {
+            Scope = scope,
+            EdgeId = edgeId,
+            FromNodeId = fromNodeId,
+            ToNodeId = toNodeId,
+            EdgeType = relationType,
+            Properties = DeserializeProperties(propertiesJson),
+            UpdatedAt = FromUnixTimeMilliseconds(updatedAtEpochMs),
+        };
+    }
+
+    private string BuildNeighborCypher(ProjectionGraphDirection direction, int take)
+    {
+        var filter = "WHERE size($edgeTypes) = 0 OR r.relationType IN $edgeTypes ";
+        var projection = "RETURN r.edgeId AS edgeId, " +
+                         "startNode(r).nodeId AS fromNodeId, " +
+                         "endNode(r).nodeId AS toNodeId, " +
+                         "coalesce(r.relationType, '') AS relationType, " +
+                         "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
+                         "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
+                         "ORDER BY updatedAtEpochMs DESC LIMIT $take";
+        return direction switch
+        {
+            ProjectionGraphDirection.Outbound =>
+                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})-[r:{_edgeType}]->(:{_nodeLabel} {{scope: $scope}}) " +
+                filter +
+                projection,
+            ProjectionGraphDirection.Inbound =>
+                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})<-[r:{_edgeType}]-(:{_nodeLabel} {{scope: $scope}}) " +
+                filter +
+                projection,
+            _ =>
+                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})-[r:{_edgeType}]-(:{_nodeLabel} {{scope: $scope}}) " +
+                filter +
+                projection,
+        };
+    }
+
+    private string BuildSubgraphEdgesCypher(ProjectionGraphDirection direction, int depth)
+    {
+        var boundedDepth = Math.Clamp(depth, 1, _maxTraversalDepth);
+        var pathPattern = direction switch
+        {
+            ProjectionGraphDirection.Outbound =>
+                $"(root)-[:{_edgeType}*1..{boundedDepth}]->()",
+            ProjectionGraphDirection.Inbound =>
+                $"(root)<-[:{_edgeType}*1..{boundedDepth}]-()",
+            _ =>
+                $"(root)-[:{_edgeType}*1..{boundedDepth}]-()",
+        };
+        return $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}}) " +
+               $"OPTIONAL MATCH p={pathPattern} " +
+               "WHERE p IS NULL OR (" +
+               "all(n IN nodes(p) WHERE coalesce(n.scope, '') = $scope) " +
+               "AND (size($edgeTypes) = 0 OR all(rel IN relationships(p) WHERE rel.relationType IN $edgeTypes))) " +
+               "UNWIND CASE WHEN p IS NULL THEN [] ELSE relationships(p) END AS r " +
+               "WITH DISTINCT r " +
+               "RETURN r.edgeId AS edgeId, " +
+               "startNode(r).nodeId AS fromNodeId, " +
+               "endNode(r).nodeId AS toNodeId, " +
+               "coalesce(r.relationType, '') AS relationType, " +
+               "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
+               "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
+               "ORDER BY updatedAtEpochMs DESC LIMIT $take";
+    }
+
+    private async Task EnsureSchemaAsync(CancellationToken ct)
+    {
+        if (!_autoCreateConstraints || _schemaInitialized)
+            return;
+
+        await _schemaLock.WaitAsync(ct);
+        try
+        {
+            if (_schemaInitialized)
+                return;
+
+            var nodeConstraintName = NormalizeConstraintName($"projection_graph_node_scope_id_{_nodeLabel}");
+            var cypher = $"CREATE CONSTRAINT {nodeConstraintName} IF NOT EXISTS " +
+                         $"FOR (n:{_nodeLabel}) REQUIRE (n.scope, n.nodeId) IS UNIQUE";
+            await ExecuteWriteAsync(cypher, new Dictionary<string, object?>(), ct);
+            _schemaInitialized = true;
+        }
+        finally
+        {
+            _schemaLock.Release();
+        }
+    }
+
+    private async Task ExecuteWriteAsync(
+        string cypher,
+        IReadOnlyDictionary<string, object?> parameters,
+        CancellationToken ct)
+    {
+        await using var session = CreateSession(AccessMode.Write);
+        var cursor = await session.RunAsync(cypher, parameters);
+        await cursor.ConsumeAsync();
+        ct.ThrowIfCancellationRequested();
+    }
+
+    private async Task<IReadOnlyList<IReadOnlyDictionary<string, object>>> ExecuteReadAsync(
+        string cypher,
+        IReadOnlyDictionary<string, object?> parameters,
+        CancellationToken ct)
+    {
+        await using var session = CreateSession(AccessMode.Read);
+        var cursor = await session.RunAsync(cypher, parameters);
+        var rows = await cursor.ToListAsync(record =>
+            (IReadOnlyDictionary<string, object>)record.Values.ToDictionary(x => x.Key, x => x.Value, StringComparer.Ordinal));
+        ct.ThrowIfCancellationRequested();
+        return rows;
+    }
+
+    private IAsyncSession CreateSession(AccessMode accessMode)
+    {
+        return _driver.AsyncSession(options =>
+        {
+            options.WithDefaultAccessMode(accessMode);
+            if (_database.Length > 0)
+                options.WithDatabase(_database);
+        });
+    }
+
+    private static string[] NormalizeEdgeTypes(IReadOnlyList<string> edgeTypes)
+    {
+        return edgeTypes
+            .Select(NormalizeToken)
+            .Where(x => x.Length > 0)
+            .Distinct(StringComparer.Ordinal)
+            .ToArray();
+    }
+
+    private static bool ResolveProjectionManaged(IReadOnlyDictionary<string, string> properties)
+    {
+        if (!properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedMarkerKey, out var markerValue))
+            return false;
+
+        var normalizedMarker = NormalizeToken(markerValue);
+        return string.Equals(
+            normalizedMarker,
+            ProjectionGraphManagedPropertyKeys.ManagedMarkerValue,
+            StringComparison.Ordinal);
+    }
+
+    private static string ResolveProjectionOwnerId(IReadOnlyDictionary<string, string> properties)
+    {
+        if (!properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var ownerId))
+            return "";
+
+        return NormalizeToken(ownerId);
+    }
+
+    private string SerializeProperties(IReadOnlyDictionary<string, string> properties)
+    {
+        if (properties.Count == 0)
+            return "{}";
+        return JsonSerializer.Serialize(properties, _jsonOptions);
+    }
+
+    private Dictionary<string, string> DeserializeProperties(string payload)
+    {
+        if (string.IsNullOrWhiteSpace(payload))
+            return new Dictionary<string, string>(StringComparer.Ordinal);
+        try
+        {
+            var parsed = JsonSerializer.Deserialize<Dictionary<string, string>>(payload, _jsonOptions);
+            return parsed == null
+                ? new Dictionary<string, string>(StringComparer.Ordinal)
+                : new Dictionary<string, string>(parsed, StringComparer.Ordinal);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(
+                ex,
+                "Failed to deserialize graph properties payload. provider={Provider}",
+                ProviderName);
+            return new Dictionary<string, string>(StringComparer.Ordinal);
+        }
+    }
+
+    private static long NormalizeTimestamp(DateTimeOffset timestamp)
+    {
+        if (timestamp == default)
+            return DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+        return timestamp.ToUnixTimeMilliseconds();
+    }
+
+    private static DateTimeOffset FromUnixTimeMilliseconds(long value)
+    {
+        var safeValue = Math.Max(0, value);
+        return DateTimeOffset.FromUnixTimeMilliseconds(safeValue);
+    }
+
+    private static string NormalizeToken(string token) => token?.Trim() ?? "";
+
+    private static string NormalizeLabel(string rawLabel, string fallback)
+    {
+        var label = (rawLabel ?? "").Trim();
+        if (label.Length == 0)
+            label = fallback;
+
+        var chars = label
+            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? ch : '_')
+            .ToArray();
+        var normalized = new string(chars);
+        if (normalized.Length == 0)
+            normalized = fallback;
+        if (char.IsDigit(normalized[0]))
+            normalized = $"N_{normalized}";
+        return normalized;
+    }
+
+    private static string NormalizeConstraintName(string rawName)
+    {
+        var chars = rawName
+            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? char.ToLowerInvariant(ch) : '_')
+            .ToArray();
+        var normalized = new string(chars);
+        if (normalized.Length == 0)
+            return "projection_graph_constraint";
+        if (char.IsDigit(normalized[0]))
+            normalized = $"c_{normalized}";
+        return normalized;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
index 085c574a7..833f13e80 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
@@ -6,13 +6,12 @@
 
 namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
 
-public sealed class Neo4jProjectionGraphStore
+public sealed partial class Neo4jProjectionGraphStore
     : IProjectionGraphStore,
       IAsyncDisposable
 {
     private const string ProviderName = "Neo4j";
     private readonly IDriver _driver;
-    private readonly string _scope;
     private readonly string _database;
     private readonly string _nodeLabel;
     private readonly string _edgeType;
@@ -28,13 +27,9 @@ public sealed class Neo4jProjectionGraphStore
 
     public Neo4jProjectionGraphStore(
         Neo4jProjectionGraphStoreOptions options,
-        string scope,
         ILogger<Neo4jProjectionGraphStore>? logger = null)
     {
         ArgumentNullException.ThrowIfNull(options);
-        ArgumentException.ThrowIfNullOrWhiteSpace(scope);
-
-        _scope = scope.Trim();
         _database = options.Database?.Trim() ?? "";
         _nodeLabel = NormalizeLabel(options.NodeLabel, "ProjectionGraphNode");
         _edgeType = NormalizeLabel(options.EdgeType, "PROJECTION_REL");
@@ -173,6 +168,7 @@ public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken
     public async Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
         string scope,
         string ownerId,
+        int skip = 0,
         int take = 5000,
         CancellationToken ct = default)
     {
@@ -184,6 +180,7 @@ public async Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
 
         await EnsureSchemaAsync(ct);
         var boundedTake = Math.Clamp(take, 1, 50000);
+        var boundedSkip = Math.Max(0, skip);
         var cypher = $"MATCH (n:{_nodeLabel} {{scope: $scope}}) " +
                      "WHERE coalesce(n.projectionManaged, false) = true " +
                      "AND n.projectionOwnerId = $ownerId " +
@@ -191,11 +188,12 @@ public async Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
                      "coalesce(n.nodeType, '') AS nodeType, " +
                      "coalesce(n.propertiesJson, '{}') AS propertiesJson, " +
                      "coalesce(n.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
-                     "ORDER BY updatedAtEpochMs DESC LIMIT $take";
+                     "ORDER BY updatedAtEpochMs DESC SKIP $skip LIMIT $take";
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scopeValue,
             ["ownerId"] = ownerValue,
+            ["skip"] = boundedSkip,
             ["take"] = boundedTake,
         };
 
@@ -239,6 +237,7 @@ public async Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
     public async Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
         string scope,
         string ownerId,
+        int skip = 0,
         int take = 5000,
         CancellationToken ct = default)
     {
@@ -250,6 +249,7 @@ public async Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
 
         await EnsureSchemaAsync(ct);
         var boundedTake = Math.Clamp(take, 1, 50000);
+        var boundedSkip = Math.Max(0, skip);
         var cypher = $"MATCH ()-[r:{_edgeType} {{scope: $scope}}]->() " +
                      "WHERE coalesce(r.projectionManaged, false) = true " +
                      "AND r.projectionOwnerId = $ownerId " +
@@ -259,11 +259,12 @@ public async Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
                      "coalesce(r.relationType, '') AS relationType, " +
                      "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
                      "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
-                     "ORDER BY updatedAtEpochMs DESC LIMIT $take";
+                     "ORDER BY updatedAtEpochMs DESC SKIP $skip LIMIT $take";
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scopeValue,
             ["ownerId"] = ownerValue,
+            ["skip"] = boundedSkip,
             ["take"] = boundedTake,
         };
 
@@ -378,314 +379,4 @@ public async ValueTask DisposeAsync()
         await _driver.DisposeAsync();
     }
 
-    private async Task<List<ProjectionGraphNode>> GetNodesByIdsAsync(
-        string scope,
-        IReadOnlySet<string> nodeIds,
-        CancellationToken ct)
-    {
-        if (nodeIds.Count == 0)
-            return [];
-
-        await EnsureSchemaAsync(ct);
-        var cypher = $"MATCH (n:{_nodeLabel} {{scope: $scope}}) " +
-                     "WHERE n.nodeId IN $nodeIds " +
-                     "RETURN n.nodeId AS nodeId, " +
-                     "coalesce(n.nodeType, '') AS nodeType, " +
-                     "coalesce(n.propertiesJson, '{}') AS propertiesJson, " +
-                     "coalesce(n.updatedAtEpochMs, 0) AS updatedAtEpochMs";
-        var parameters = new Dictionary<string, object?>
-        {
-            ["scope"] = scope,
-            ["nodeIds"] = nodeIds.ToArray(),
-        };
-
-        var rows = await ExecuteReadAsync(cypher, parameters, ct);
-        var nodes = new List<ProjectionGraphNode>(rows.Count);
-        foreach (var row in rows)
-        {
-            if (!row.TryGetValue("nodeId", out var nodeIdValue))
-                continue;
-            var nodeId = NormalizeToken(nodeIdValue.As<string>());
-            if (nodeId.Length == 0)
-                continue;
-
-            var nodeType = row.TryGetValue("nodeType", out var nodeTypeValue)
-                ? NormalizeToken(nodeTypeValue.As<string>())
-                : "Unknown";
-            if (nodeType.Length == 0)
-                nodeType = "Unknown";
-
-            var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
-                ? propertiesJsonValue.As<string>()
-                : "{}";
-            var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
-                ? updatedAtEpochMsValue.As<long>()
-                : 0L;
-
-            nodes.Add(new ProjectionGraphNode
-            {
-                Scope = scope,
-                NodeId = nodeId,
-                NodeType = nodeType,
-                Properties = DeserializeProperties(propertiesJson),
-                UpdatedAt = FromUnixTimeMilliseconds(updatedAtEpochMs),
-            });
-        }
-
-        return nodes;
-    }
-
-    private ProjectionGraphEdge? BuildEdgeFromRow(string scope, IReadOnlyDictionary<string, object> row)
-    {
-        if (!row.TryGetValue("edgeId", out var edgeIdValue))
-            return null;
-        if (!row.TryGetValue("fromNodeId", out var fromNodeIdValue))
-            return null;
-        if (!row.TryGetValue("toNodeId", out var toNodeIdValue))
-            return null;
-
-        var edgeId = NormalizeToken(edgeIdValue.As<string>());
-        var fromNodeId = NormalizeToken(fromNodeIdValue.As<string>());
-        var toNodeId = NormalizeToken(toNodeIdValue.As<string>());
-        if (edgeId.Length == 0 || fromNodeId.Length == 0 || toNodeId.Length == 0)
-            return null;
-
-        var relationType = row.TryGetValue("relationType", out var relationTypeValue)
-            ? NormalizeToken(relationTypeValue.As<string>())
-            : "Unknown";
-        if (relationType.Length == 0)
-            relationType = "Unknown";
-        var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
-            ? propertiesJsonValue.As<string>()
-            : "{}";
-        var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
-            ? updatedAtEpochMsValue.As<long>()
-            : 0L;
-
-        return new ProjectionGraphEdge
-        {
-            Scope = scope,
-            EdgeId = edgeId,
-            FromNodeId = fromNodeId,
-            ToNodeId = toNodeId,
-            EdgeType = relationType,
-            Properties = DeserializeProperties(propertiesJson),
-            UpdatedAt = FromUnixTimeMilliseconds(updatedAtEpochMs),
-        };
-    }
-
-    private string BuildNeighborCypher(ProjectionGraphDirection direction, int take)
-    {
-        var filter = "WHERE size($edgeTypes) = 0 OR r.relationType IN $edgeTypes ";
-        var projection = "RETURN r.edgeId AS edgeId, " +
-                         "startNode(r).nodeId AS fromNodeId, " +
-                         "endNode(r).nodeId AS toNodeId, " +
-                         "coalesce(r.relationType, '') AS relationType, " +
-                         "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
-                         "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
-                         "ORDER BY updatedAtEpochMs DESC LIMIT $take";
-        return direction switch
-        {
-            ProjectionGraphDirection.Outbound =>
-                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})-[r:{_edgeType}]->(:{_nodeLabel} {{scope: $scope}}) " +
-                filter +
-                projection,
-            ProjectionGraphDirection.Inbound =>
-                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})<-[r:{_edgeType}]-(:{_nodeLabel} {{scope: $scope}}) " +
-                filter +
-                projection,
-            _ =>
-                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})-[r:{_edgeType}]-(:{_nodeLabel} {{scope: $scope}}) " +
-                filter +
-                projection,
-        };
-    }
-
-    private string BuildSubgraphEdgesCypher(ProjectionGraphDirection direction, int depth)
-    {
-        var boundedDepth = Math.Clamp(depth, 1, _maxTraversalDepth);
-        var pathPattern = direction switch
-        {
-            ProjectionGraphDirection.Outbound =>
-                $"(root)-[:{_edgeType}*1..{boundedDepth}]->()",
-            ProjectionGraphDirection.Inbound =>
-                $"(root)<-[:{_edgeType}*1..{boundedDepth}]-()",
-            _ =>
-                $"(root)-[:{_edgeType}*1..{boundedDepth}]-()",
-        };
-        return $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}}) " +
-               $"OPTIONAL MATCH p={pathPattern} " +
-               "WHERE p IS NULL OR (" +
-               "all(n IN nodes(p) WHERE coalesce(n.scope, '') = $scope) " +
-               "AND (size($edgeTypes) = 0 OR all(rel IN relationships(p) WHERE rel.relationType IN $edgeTypes))) " +
-               "UNWIND CASE WHEN p IS NULL THEN [] ELSE relationships(p) END AS r " +
-               "WITH DISTINCT r " +
-               "RETURN r.edgeId AS edgeId, " +
-               "startNode(r).nodeId AS fromNodeId, " +
-               "endNode(r).nodeId AS toNodeId, " +
-               "coalesce(r.relationType, '') AS relationType, " +
-               "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
-               "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
-               "ORDER BY updatedAtEpochMs DESC LIMIT $take";
-    }
-
-    private async Task EnsureSchemaAsync(CancellationToken ct)
-    {
-        if (!_autoCreateConstraints || _schemaInitialized)
-            return;
-
-        await _schemaLock.WaitAsync(ct);
-        try
-        {
-            if (_schemaInitialized)
-                return;
-
-            var nodeConstraintName = NormalizeConstraintName($"projection_graph_node_scope_id_{_nodeLabel}");
-            var cypher = $"CREATE CONSTRAINT {nodeConstraintName} IF NOT EXISTS " +
-                         $"FOR (n:{_nodeLabel}) REQUIRE (n.scope, n.nodeId) IS UNIQUE";
-            await ExecuteWriteAsync(cypher, new Dictionary<string, object?>(), ct);
-            _schemaInitialized = true;
-        }
-        finally
-        {
-            _schemaLock.Release();
-        }
-    }
-
-    private async Task ExecuteWriteAsync(
-        string cypher,
-        IReadOnlyDictionary<string, object?> parameters,
-        CancellationToken ct)
-    {
-        await using var session = CreateSession(AccessMode.Write);
-        var cursor = await session.RunAsync(cypher, parameters);
-        await cursor.ConsumeAsync();
-        ct.ThrowIfCancellationRequested();
-    }
-
-    private async Task<IReadOnlyList<IReadOnlyDictionary<string, object>>> ExecuteReadAsync(
-        string cypher,
-        IReadOnlyDictionary<string, object?> parameters,
-        CancellationToken ct)
-    {
-        await using var session = CreateSession(AccessMode.Read);
-        var cursor = await session.RunAsync(cypher, parameters);
-        var rows = await cursor.ToListAsync(record =>
-            (IReadOnlyDictionary<string, object>)record.Values.ToDictionary(x => x.Key, x => x.Value, StringComparer.Ordinal));
-        ct.ThrowIfCancellationRequested();
-        return rows;
-    }
-
-    private IAsyncSession CreateSession(AccessMode accessMode)
-    {
-        return _driver.AsyncSession(options =>
-        {
-            options.WithDefaultAccessMode(accessMode);
-            if (_database.Length > 0)
-                options.WithDatabase(_database);
-        });
-    }
-
-    private static string[] NormalizeEdgeTypes(IReadOnlyList<string> edgeTypes)
-    {
-        return edgeTypes
-            .Select(NormalizeToken)
-            .Where(x => x.Length > 0)
-            .Distinct(StringComparer.Ordinal)
-            .ToArray();
-    }
-
-    private static bool ResolveProjectionManaged(IReadOnlyDictionary<string, string> properties)
-    {
-        if (!properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedMarkerKey, out var markerValue))
-            return false;
-
-        var normalizedMarker = NormalizeToken(markerValue);
-        return string.Equals(
-            normalizedMarker,
-            ProjectionGraphManagedPropertyKeys.ManagedMarkerValue,
-            StringComparison.Ordinal);
-    }
-
-    private static string ResolveProjectionOwnerId(IReadOnlyDictionary<string, string> properties)
-    {
-        if (!properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var ownerId))
-            return "";
-
-        return NormalizeToken(ownerId);
-    }
-
-    private string SerializeProperties(IReadOnlyDictionary<string, string> properties)
-    {
-        if (properties.Count == 0)
-            return "{}";
-        return JsonSerializer.Serialize(properties, _jsonOptions);
-    }
-
-    private Dictionary<string, string> DeserializeProperties(string payload)
-    {
-        if (string.IsNullOrWhiteSpace(payload))
-            return new Dictionary<string, string>(StringComparer.Ordinal);
-        try
-        {
-            var parsed = JsonSerializer.Deserialize<Dictionary<string, string>>(payload, _jsonOptions);
-            return parsed == null
-                ? new Dictionary<string, string>(StringComparer.Ordinal)
-                : new Dictionary<string, string>(parsed, StringComparer.Ordinal);
-        }
-        catch (Exception ex)
-        {
-            _logger.LogWarning(
-                ex,
-                "Failed to deserialize graph edge properties payload. provider={Provider} scope={Scope}",
-                ProviderName,
-                _scope);
-            return new Dictionary<string, string>(StringComparer.Ordinal);
-        }
-    }
-
-    private static long NormalizeTimestamp(DateTimeOffset timestamp)
-    {
-        if (timestamp == default)
-            return DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
-        return timestamp.ToUnixTimeMilliseconds();
-    }
-
-    private static DateTimeOffset FromUnixTimeMilliseconds(long value)
-    {
-        var safeValue = Math.Max(0, value);
-        return DateTimeOffset.FromUnixTimeMilliseconds(safeValue);
-    }
-
-    private static string NormalizeToken(string token) => token?.Trim() ?? "";
-
-    private static string NormalizeLabel(string rawLabel, string fallback)
-    {
-        var label = (rawLabel ?? "").Trim();
-        if (label.Length == 0)
-            label = fallback;
-
-        var chars = label
-            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? ch : '_')
-            .ToArray();
-        var normalized = new string(chars);
-        if (normalized.Length == 0)
-            normalized = fallback;
-        if (char.IsDigit(normalized[0]))
-            normalized = $"N_{normalized}";
-        return normalized;
-    }
-
-    private static string NormalizeConstraintName(string rawName)
-    {
-        var chars = rawName
-            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? char.ToLowerInvariant(ch) : '_')
-            .ToArray();
-        var normalized = new string(chars);
-        if (normalized.Length == 0)
-            return "projection_graph_constraint";
-        if (char.IsDigit(normalized[0]))
-            normalized = $"c_{normalized}";
-        return normalized;
-    }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs
new file mode 100644
index 000000000..69d9d40d7
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs
@@ -0,0 +1,6 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionStoreBindingAvailability
+{
+    bool IsConfigured { get; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatchCompensator.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatchCompensator.cs
new file mode 100644
index 000000000..744dcccc3
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatchCompensator.cs
@@ -0,0 +1,9 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public interface IProjectionStoreDispatchCompensator<TReadModel, TKey>
+    where TReadModel : class, IProjectionReadModel
+{
+    Task CompensateAsync(
+        ProjectionStoreDispatchCompensationContext<TReadModel, TKey> context,
+        CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchCompensationContext.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchCompensationContext.cs
new file mode 100644
index 000000000..f0e7df9e9
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchCompensationContext.cs
@@ -0,0 +1,17 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public sealed class ProjectionStoreDispatchCompensationContext<TReadModel, TKey>
+    where TReadModel : class, IProjectionReadModel
+{
+    public required string Operation { get; init; }
+
+    public required string FailedStore { get; init; }
+
+    public required IReadOnlyList<string> SucceededStores { get; init; }
+
+    public required TReadModel ReadModel { get; init; }
+
+    public required Exception Exception { get; init; }
+
+    public TKey? Key { get; init; }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchOptions.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchOptions.cs
new file mode 100644
index 000000000..a193fb4b5
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchOptions.cs
@@ -0,0 +1,6 @@
+namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
+
+public sealed class ProjectionStoreDispatchOptions
+{
+    public int MaxWriteAttempts { get; set; } = 3;
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index bacc46ac3..4a3b4bf88 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -8,9 +8,12 @@ public static class ServiceCollectionExtensions
 {
     public static IServiceCollection AddProjectionReadModelRuntime(this IServiceCollection services)
     {
+        services.TryAddSingleton(new ProjectionStoreDispatchOptions());
+        services.TryAddSingleton(typeof(IProjectionStoreDispatchCompensator<,>), typeof(LoggingProjectionStoreDispatchCompensator<,>));
         services.TryAddSingleton(typeof(IProjectionStoreDispatcher<,>), typeof(ProjectionStoreDispatcher<,>));
         services.TryAddSingleton(typeof(IProjectionQueryableStoreBinding<,>), typeof(ProjectionDocumentStoreBinding<,>));
         services.TryAddEnumerable(ServiceDescriptor.Singleton(typeof(IProjectionStoreBinding<,>), typeof(ProjectionDocumentStoreBinding<,>)));
+        services.TryAddEnumerable(ServiceDescriptor.Singleton(typeof(IProjectionStoreBinding<,>), typeof(ProjectionGraphStoreBinding<,>)));
         services.TryAddSingleton<IProjectionDocumentMetadataResolver, ProjectionDocumentMetadataResolver>();
         return services;
     }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/README.md b/src/Aevatar.CQRS.Projection.Runtime/README.md
index f39bc5cea..f346b57a8 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime/README.md
@@ -18,10 +18,11 @@
 - `IProjectionStoreDispatcher<,>` -> `ProjectionStoreDispatcher<,>`
 - `IProjectionQueryableStoreBinding<,>` -> `ProjectionDocumentStoreBinding<,>`
 - `IProjectionStoreBinding<,>`(默认) -> `ProjectionDocumentStoreBinding<,>`
+- `IProjectionStoreBinding<,>`(默认) -> `ProjectionGraphStoreBinding<,>`
 - `IProjectionDocumentMetadataResolver` -> `ProjectionDocumentMetadataResolver`
 
 ## 语义
 
 1. Runtime 负责“一对多 store 分发”，不做 ProviderName 路由。
-2. Document 与 Graph 保持平行；Graph 通过额外 binding 接入。
-3. 查询统一走唯一 queryable binding；写入同时分发到所有 binding。
+2. Document 与 Graph 保持平行；Runtime 默认同时装配两类 binding，按配置自动激活。
+3. queryable binding 为可选（0..1）；存在时提供 `Get/List/Mutate`，写入始终分发到所有已配置 binding。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/LoggingProjectionStoreDispatchCompensator.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/LoggingProjectionStoreDispatchCompensator.cs
new file mode 100644
index 000000000..425ad5ad4
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/LoggingProjectionStoreDispatchCompensator.cs
@@ -0,0 +1,34 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.CQRS.Projection.Runtime.Runtime;
+
+public sealed class LoggingProjectionStoreDispatchCompensator<TReadModel, TKey>
+    : IProjectionStoreDispatchCompensator<TReadModel, TKey>
+    where TReadModel : class, IProjectionReadModel
+{
+    private readonly ILogger<LoggingProjectionStoreDispatchCompensator<TReadModel, TKey>> _logger;
+
+    public LoggingProjectionStoreDispatchCompensator(
+        ILogger<LoggingProjectionStoreDispatchCompensator<TReadModel, TKey>>? logger = null)
+    {
+        _logger = logger ?? NullLogger<LoggingProjectionStoreDispatchCompensator<TReadModel, TKey>>.Instance;
+    }
+
+    public Task CompensateAsync(
+        ProjectionStoreDispatchCompensationContext<TReadModel, TKey> context,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(context);
+        ct.ThrowIfCancellationRequested();
+
+        _logger.LogWarning(
+            context.Exception,
+            "Projection dispatch compensation executed. readModelType={ReadModelType} operation={Operation} failedStore={FailedStore} succeededStores={SucceededStores}",
+            typeof(TReadModel).FullName,
+            context.Operation,
+            context.FailedStore,
+            string.Join(",", context.SucceededStores));
+        return Task.CompletedTask;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs
index 4f08e174e..a37d66101 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs
@@ -1,35 +1,48 @@
 namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
 public sealed class ProjectionDocumentStoreBinding<TReadModel, TKey>
-    : IProjectionQueryableStoreBinding<TReadModel, TKey>
+    : IProjectionQueryableStoreBinding<TReadModel, TKey>,
+      IProjectionStoreBindingAvailability
     where TReadModel : class, IProjectionReadModel
 {
-    private readonly IProjectionDocumentStore<TReadModel, TKey> _store;
+    private readonly IProjectionDocumentStore<TReadModel, TKey>? _store;
 
-    public ProjectionDocumentStoreBinding(IProjectionDocumentStore<TReadModel, TKey> store)
+    public ProjectionDocumentStoreBinding(IProjectionDocumentStore<TReadModel, TKey>? store = null)
     {
         _store = store;
     }
 
-    public string StoreName => "Document";
+    public bool IsConfigured => _store is not null;
+
+    public string StoreName => IsConfigured ? "Document" : "Document(Unconfigured)";
 
     public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
     {
+        if (_store is null)
+            return Task.CompletedTask;
+
         return _store.UpsertAsync(readModel, ct);
     }
 
     public Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
     {
-        return _store.MutateAsync(key, mutate, ct);
+        return GetRequiredStore().MutateAsync(key, mutate, ct);
     }
 
     public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
     {
-        return _store.GetAsync(key, ct);
+        return GetRequiredStore().GetAsync(key, ct);
     }
 
     public Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
     {
-        return _store.ListAsync(take, ct);
+        return GetRequiredStore().ListAsync(take, ct);
+    }
+
+    private IProjectionDocumentStore<TReadModel, TKey> GetRequiredStore()
+    {
+        return _store ??
+               throw new InvalidOperationException(
+                   $"Document projection store is not configured for read model '{typeof(TReadModel).FullName}'.");
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs
index 3868ee693..4f9f9b4cd 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs
@@ -1,38 +1,48 @@
 namespace Aevatar.CQRS.Projection.Runtime.Runtime;
 
 public sealed class ProjectionGraphStoreBinding<TReadModel, TKey>
-    : IProjectionStoreBinding<TReadModel, TKey>
-    where TReadModel : class, IGraphReadModel
+    : IProjectionStoreBinding<TReadModel, TKey>,
+      IProjectionStoreBindingAvailability
+    where TReadModel : class, IProjectionReadModel
 {
-    private readonly IProjectionGraphStore _graphStore;
+    private const int CleanupPageSize = 1000;
+    private const int CleanupMaxItems = 1_000_000;
 
-    public ProjectionGraphStoreBinding(IProjectionGraphStore graphStore)
+    private readonly IProjectionGraphStore? _graphStore;
+
+    public ProjectionGraphStoreBinding(IProjectionGraphStore? graphStore = null)
     {
         _graphStore = graphStore;
     }
 
-    public string StoreName => "Graph";
+    public bool IsConfigured =>
+        _graphStore is not null &&
+        typeof(IGraphReadModel).IsAssignableFrom(typeof(TReadModel));
+
+    public string StoreName => IsConfigured ? "Graph" : "Graph(Unconfigured)";
 
     public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(readModel);
         ct.ThrowIfCancellationRequested();
+        if (_graphStore is null || readModel is not IGraphReadModel graphReadModel)
+            return;
 
-        var scope = NormalizeToken(readModel.GraphScope);
+        var scope = NormalizeToken(graphReadModel.GraphScope);
         if (scope.Length == 0)
         {
             throw new InvalidOperationException(
                 $"Graph scope is required for read model '{typeof(TReadModel).FullName}'.");
         }
 
-        var ownerId = BuildManagedOwnerId(readModel);
-        var normalizedNodes = NormalizeNodes(readModel.GraphNodes, scope, ownerId);
+        var ownerId = BuildManagedOwnerId(graphReadModel);
+        var normalizedNodes = NormalizeNodes(graphReadModel.GraphNodes, scope, ownerId);
         foreach (var node in normalizedNodes)
-            await _graphStore.UpsertNodeAsync(node, ct);
+            await GraphStore.UpsertNodeAsync(node, ct);
 
-        var normalizedEdges = NormalizeEdges(readModel.GraphEdges, scope, ownerId);
+        var normalizedEdges = NormalizeEdges(graphReadModel.GraphEdges, scope, ownerId);
         foreach (var edge in normalizedEdges)
-            await _graphStore.UpsertEdgeAsync(edge, ct);
+            await GraphStore.UpsertEdgeAsync(edge, ct);
 
         var targetNodeIds = normalizedNodes
             .Select(x => x.NodeId)
@@ -41,27 +51,97 @@ public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = defau
             .Select(x => x.EdgeId)
             .ToHashSet(StringComparer.Ordinal);
 
-        var existingManagedEdges = await _graphStore.ListEdgesByOwnerAsync(scope, ownerId, take: 50000, ct);
-        foreach (var edge in existingManagedEdges.Where(IsManagedEdge))
+        var existingManagedEdges = await ListManagedEdgesByOwnerAsync(scope, ownerId, ct);
+        foreach (var edge in existingManagedEdges)
         {
             if (targetEdgeIds.Contains(edge.EdgeId))
                 continue;
 
-            await _graphStore.DeleteEdgeAsync(scope, edge.EdgeId, ct);
+            await GraphStore.DeleteEdgeAsync(scope, edge.EdgeId, ct);
         }
 
-        var existingManagedNodes = await _graphStore.ListNodesByOwnerAsync(scope, ownerId, take: 50000, ct);
-        foreach (var node in existingManagedNodes.Where(IsManagedNode))
+        var existingManagedNodes = await ListManagedNodesByOwnerAsync(scope, ownerId, ct);
+        foreach (var node in existingManagedNodes)
         {
             if (targetNodeIds.Contains(node.NodeId))
                 continue;
             if (!await CanDeleteNodeAsync(scope, node.NodeId, ct))
                 continue;
 
-            await _graphStore.DeleteNodeAsync(scope, node.NodeId, ct);
+            await GraphStore.DeleteNodeAsync(scope, node.NodeId, ct);
         }
     }
 
+    private async Task<IReadOnlyList<ProjectionGraphEdge>> ListManagedEdgesByOwnerAsync(
+        string scope,
+        string ownerId,
+        CancellationToken ct)
+    {
+        var result = new List<ProjectionGraphEdge>();
+        var skip = 0;
+        while (true)
+        {
+            ct.ThrowIfCancellationRequested();
+            var page = await GraphStore.ListEdgesByOwnerAsync(
+                scope,
+                ownerId,
+                skip: skip,
+                take: CleanupPageSize,
+                ct);
+            if (page.Count == 0)
+                break;
+
+            result.AddRange(page.Where(IsManagedEdge));
+            if (result.Count > CleanupMaxItems)
+            {
+                throw new InvalidOperationException(
+                    $"Graph cleanup exceeded maximum edge scan limit ({CleanupMaxItems}) for read model '{typeof(TReadModel).FullName}'.");
+            }
+
+            if (page.Count < CleanupPageSize)
+                break;
+
+            skip += page.Count;
+        }
+
+        return result;
+    }
+
+    private async Task<IReadOnlyList<ProjectionGraphNode>> ListManagedNodesByOwnerAsync(
+        string scope,
+        string ownerId,
+        CancellationToken ct)
+    {
+        var result = new List<ProjectionGraphNode>();
+        var skip = 0;
+        while (true)
+        {
+            ct.ThrowIfCancellationRequested();
+            var page = await GraphStore.ListNodesByOwnerAsync(
+                scope,
+                ownerId,
+                skip: skip,
+                take: CleanupPageSize,
+                ct);
+            if (page.Count == 0)
+                break;
+
+            result.AddRange(page.Where(IsManagedNode));
+            if (result.Count > CleanupMaxItems)
+            {
+                throw new InvalidOperationException(
+                    $"Graph cleanup exceeded maximum node scan limit ({CleanupMaxItems}) for read model '{typeof(TReadModel).FullName}'.");
+            }
+
+            if (page.Count < CleanupPageSize)
+                break;
+
+            skip += page.Count;
+        }
+
+        return result;
+    }
+
     private static string BuildManagedOwnerId(IGraphReadModel readModel)
     {
         var readModelId = NormalizeToken(readModel.Id);
@@ -179,7 +259,7 @@ private async Task<bool> CanDeleteNodeAsync(
         if (nodeId.Length == 0)
             return false;
 
-        var neighbors = await _graphStore.GetNeighborsAsync(
+        var neighbors = await GraphStore.GetNeighborsAsync(
             new ProjectionGraphQuery
             {
                 Scope = scope,
@@ -193,4 +273,9 @@ private async Task<bool> CanDeleteNodeAsync(
     }
 
     private static string NormalizeToken(string? token) => token?.Trim() ?? "";
+
+    private IProjectionGraphStore GraphStore =>
+        _graphStore ??
+        throw new InvalidOperationException(
+            $"Graph projection store is not configured for read model '{typeof(TReadModel).FullName}'.");
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
index 3fa293dc5..adb8155d6 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
@@ -9,42 +9,52 @@ public sealed class ProjectionStoreDispatcher<TReadModel, TKey>
 {
     private readonly IReadOnlyList<IProjectionStoreBinding<TReadModel, TKey>> _bindings;
     private readonly IReadOnlyList<IProjectionStoreBinding<TReadModel, TKey>> _writeOnlyBindings;
-    private readonly IProjectionQueryableStoreBinding<TReadModel, TKey> _queryBinding;
+    private readonly IProjectionQueryableStoreBinding<TReadModel, TKey>? _queryBinding;
+    private readonly IProjectionStoreDispatchCompensator<TReadModel, TKey> _compensator;
+    private readonly ProjectionStoreDispatchOptions _options;
     private readonly ILogger<ProjectionStoreDispatcher<TReadModel, TKey>> _logger;
 
     public ProjectionStoreDispatcher(
         IEnumerable<IProjectionStoreBinding<TReadModel, TKey>> bindings,
+        IProjectionStoreDispatchCompensator<TReadModel, TKey>? compensator = null,
+        ProjectionStoreDispatchOptions? options = null,
         ILogger<ProjectionStoreDispatcher<TReadModel, TKey>>? logger = null)
     {
         ArgumentNullException.ThrowIfNull(bindings);
+        _compensator = compensator ?? NoOpProjectionStoreDispatchCompensator.Instance;
+        _options = options ?? new ProjectionStoreDispatchOptions();
         _logger = logger ?? NullLogger<ProjectionStoreDispatcher<TReadModel, TKey>>.Instance;
 
-        _bindings = bindings.ToList();
+        _bindings = bindings
+            .Where(IsBindingConfigured)
+            .ToList();
         if (_bindings.Count == 0)
         {
             throw new InvalidOperationException(
-                $"No projection store bindings are registered for read model '{typeof(TReadModel).FullName}'.");
+                $"No configured projection store bindings are registered for read model '{typeof(TReadModel).FullName}'.");
         }
 
         var queryBindings = _bindings
             .OfType<IProjectionQueryableStoreBinding<TReadModel, TKey>>()
             .ToList();
-        if (queryBindings.Count != 1)
+        if (queryBindings.Count > 1)
         {
             throw new InvalidOperationException(
-                $"Exactly one queryable projection store binding is required for read model '{typeof(TReadModel).FullName}', but {queryBindings.Count} were registered.");
+                $"At most one queryable projection store binding is allowed for read model '{typeof(TReadModel).FullName}', but {queryBindings.Count} were registered.");
         }
 
-        _queryBinding = queryBindings[0];
-        _writeOnlyBindings = _bindings
-            .Where(x => x is not IProjectionQueryableStoreBinding<TReadModel, TKey>)
-            .ToList();
+        _queryBinding = queryBindings.SingleOrDefault();
+        _writeOnlyBindings = _queryBinding is null
+            ? _bindings
+            : _bindings
+                .Where(x => !ReferenceEquals(x, _queryBinding))
+                .ToList();
 
         _logger.LogInformation(
             "Projection store dispatcher initialized. readModelType={ReadModelType} bindingCount={BindingCount} queryStore={QueryStore}",
             typeof(TReadModel).FullName,
             _bindings.Count,
-            _queryBinding.StoreName);
+            _queryBinding?.StoreName ?? "none");
     }
 
     public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
@@ -52,10 +62,27 @@ public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = defau
         ArgumentNullException.ThrowIfNull(readModel);
         ct.ThrowIfCancellationRequested();
 
+        var succeededBindings = new List<IProjectionStoreBinding<TReadModel, TKey>>();
         foreach (var binding in _bindings)
         {
             ct.ThrowIfCancellationRequested();
-            await binding.UpsertAsync(readModel, ct);
+            try
+            {
+                await UpsertWithRetryAsync(binding, readModel, ct);
+                succeededBindings.Add(binding);
+            }
+            catch (Exception ex)
+            {
+                await CompensateAsync(
+                    operation: "upsert",
+                    key: default,
+                    readModel,
+                    succeededBindings,
+                    binding,
+                    ex,
+                    ct);
+                throw;
+            }
         }
     }
 
@@ -64,31 +91,135 @@ public async Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationT
         ArgumentNullException.ThrowIfNull(mutate);
         ct.ThrowIfCancellationRequested();
 
-        await _queryBinding.MutateAsync(key, mutate, ct);
+        var queryBinding = GetRequiredQueryBinding();
+        await queryBinding.MutateAsync(key, mutate, ct);
         if (_writeOnlyBindings.Count == 0)
             return;
 
-        var updated = await _queryBinding.GetAsync(key, ct);
+        var updated = await queryBinding.GetAsync(key, ct);
         if (updated == null)
         {
             throw new InvalidOperationException(
-                $"Projection store mutate completed but query store '{_queryBinding.StoreName}' returned null for read model '{typeof(TReadModel).FullName}'.");
+                $"Projection store mutate completed but query store '{queryBinding.StoreName}' returned null for read model '{typeof(TReadModel).FullName}'.");
         }
 
+        var succeededWriteOnlyBindings = new List<IProjectionStoreBinding<TReadModel, TKey>>();
         foreach (var binding in _writeOnlyBindings)
         {
             ct.ThrowIfCancellationRequested();
-            await binding.UpsertAsync(updated, ct);
+            try
+            {
+                await UpsertWithRetryAsync(binding, updated, ct);
+                succeededWriteOnlyBindings.Add(binding);
+            }
+            catch (Exception ex)
+            {
+                await CompensateAsync(
+                    operation: "mutate",
+                    key,
+                    updated,
+                    succeededWriteOnlyBindings,
+                    binding,
+                    ex,
+                    ct);
+                throw;
+            }
         }
     }
 
     public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
     {
-        return _queryBinding.GetAsync(key, ct);
+        return GetRequiredQueryBinding().GetAsync(key, ct);
     }
 
     public Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
     {
-        return _queryBinding.ListAsync(take, ct);
+        return GetRequiredQueryBinding().ListAsync(take, ct);
+    }
+
+    private async Task UpsertWithRetryAsync(
+        IProjectionStoreBinding<TReadModel, TKey> binding,
+        TReadModel readModel,
+        CancellationToken ct)
+    {
+        var maxAttempts = Math.Max(1, _options.MaxWriteAttempts);
+        Exception? lastException = null;
+
+        for (var attempt = 1; attempt <= maxAttempts; attempt++)
+        {
+            ct.ThrowIfCancellationRequested();
+            try
+            {
+                await binding.UpsertAsync(readModel, ct);
+                return;
+            }
+            catch (Exception ex) when (attempt < maxAttempts)
+            {
+                lastException = ex;
+                _logger.LogWarning(
+                    ex,
+                    "Projection binding write failed and will retry. readModelType={ReadModelType} store={Store} attempt={Attempt}/{MaxAttempts}",
+                    typeof(TReadModel).FullName,
+                    binding.StoreName,
+                    attempt,
+                    maxAttempts);
+            }
+            catch (Exception ex)
+            {
+                lastException = ex;
+                break;
+            }
+        }
+
+        throw new InvalidOperationException(
+            $"Projection binding write failed for store '{binding.StoreName}' after {maxAttempts} attempt(s).",
+            lastException);
+    }
+
+    private Task CompensateAsync(
+        string operation,
+        TKey? key,
+        TReadModel readModel,
+        IReadOnlyList<IProjectionStoreBinding<TReadModel, TKey>> succeededBindings,
+        IProjectionStoreBinding<TReadModel, TKey> failedBinding,
+        Exception exception,
+        CancellationToken ct)
+    {
+        var context = new ProjectionStoreDispatchCompensationContext<TReadModel, TKey>
+        {
+            Operation = operation,
+            Key = key,
+            ReadModel = readModel,
+            FailedStore = failedBinding.StoreName,
+            SucceededStores = succeededBindings.Select(x => x.StoreName).ToList(),
+            Exception = exception,
+        };
+        return _compensator.CompensateAsync(context, ct);
+    }
+
+    private IProjectionQueryableStoreBinding<TReadModel, TKey> GetRequiredQueryBinding()
+    {
+        return _queryBinding ??
+               throw new InvalidOperationException(
+                   $"Queryable projection store binding is not configured for read model '{typeof(TReadModel).FullName}'.");
+    }
+
+    private static bool IsBindingConfigured(IProjectionStoreBinding<TReadModel, TKey> binding)
+    {
+        return binding is not IProjectionStoreBindingAvailability availability || availability.IsConfigured;
+    }
+
+    private sealed class NoOpProjectionStoreDispatchCompensator
+        : IProjectionStoreDispatchCompensator<TReadModel, TKey>
+    {
+        public static NoOpProjectionStoreDispatchCompensator Instance { get; } = new();
+
+        public Task CompensateAsync(
+            ProjectionStoreDispatchCompensationContext<TReadModel, TKey> context,
+            CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.CompletedTask;
+        }
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
index 135a1a1b0..4b714b5b1 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs
@@ -13,12 +13,14 @@ public interface IProjectionGraphStore
     Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
         string scope,
         string ownerId,
+        int skip = 0,
         int take = 5000,
         CancellationToken ct = default);
 
     Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
         string scope,
         string ownerId,
+        int skip = 0,
         int take = 5000,
         CancellationToken ct = default);
 
diff --git a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs
index 5bf50a3cd..d17d28ae4 100644
--- a/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs
+++ b/src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs
@@ -1,7 +1,7 @@
 namespace Aevatar.CQRS.Projection.Stores.Abstractions;
 
 public interface IProjectionDocumentStore<TReadModel, in TKey>
-    where TReadModel : class
+    where TReadModel : class, IProjectionReadModel
 {
     Task UpsertAsync(TReadModel readModel, CancellationToken ct = default);
 
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index 6e27e9fb4..a55179d4a 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -4,7 +4,6 @@
 using Aevatar.CQRS.Projection.Providers.Neo4j.Configuration;
 using Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
 using Aevatar.CQRS.Projection.Runtime.Abstractions;
-using Aevatar.CQRS.Projection.Runtime.Runtime;
 using Aevatar.Workflow.Projection.ReadModels;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
@@ -76,16 +75,13 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
         if (enableNeo4jGraph)
         {
             services.AddNeo4jGraphProjectionStore(
-                optionsFactory: _ => BuildNeo4jGraphOptions(configuration),
-                scopeFactory: _ => WorkflowExecutionGraphConstants.Scope);
+                optionsFactory: _ => BuildNeo4jGraphOptions(configuration));
         }
         else
         {
             services.AddInMemoryGraphProjectionStore();
         }
 
-        services.AddSingleton<IProjectionStoreBinding<WorkflowExecutionReport, string>, ProjectionGraphStoreBinding<WorkflowExecutionReport, string>>();
-
         return services;
     }
 
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionDocumentStoreBehaviorTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionDocumentStoreBehaviorTests.cs
index fa031f654..aeefa8b2f 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionDocumentStoreBehaviorTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ElasticsearchProjectionDocumentStoreBehaviorTests.cs
@@ -238,7 +238,7 @@ protected override async Task<HttpResponseMessage> SendAsync(
 
     private sealed record CapturedRequest(string Method, string PathAndQuery, string Body);
 
-    private sealed class StoreReadModel
+    private sealed class StoreReadModel : IProjectionReadModel
     {
         public string Id { get; set; } = "";
 
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphStoreBindingTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphStoreBindingTests.cs
index 18eb0c419..18c86bf23 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphStoreBindingTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphStoreBindingTests.cs
@@ -155,6 +155,52 @@ await act.Should().ThrowAsync<InvalidOperationException>()
             .WithMessage("*requires a non-empty Id*");
     }
 
+    [Fact]
+    public async Task UpsertAsync_WhenOwnerGraphLarge_ShouldPageThroughOwnerCleanup()
+    {
+        var store = new RecordingGraphStore();
+        var binding = new ProjectionGraphStoreBinding<TestGraphReadModel, string>(store);
+
+        var largeNodes = Enumerable.Range(0, 1205)
+            .Select(i => Node($"n-{i}"))
+            .ToList();
+        var largeEdges = Enumerable.Range(0, 1205)
+            .Select(i => Edge($"e-{i}", "root", $"n-{i}"))
+            .ToList();
+        largeNodes.Insert(0, Node("root"));
+
+        await binding.UpsertAsync(new TestGraphReadModel
+        {
+            Id = "owner-large",
+            GraphScope = "scope-1",
+            GraphNodes = largeNodes,
+            GraphEdges = largeEdges,
+        });
+
+        await binding.UpsertAsync(new TestGraphReadModel
+        {
+            Id = "owner-large",
+            GraphScope = "scope-1",
+            GraphNodes =
+            [
+                Node("root"),
+            ],
+            GraphEdges = [],
+        });
+
+        var rootNeighbors = await store.GetNeighborsAsync(new ProjectionGraphQuery
+        {
+            Scope = "scope-1",
+            RootNodeId = "root",
+            Direction = ProjectionGraphDirection.Both,
+            EdgeTypes = [],
+            Take = 5000,
+        });
+
+        store.ListEdgesByOwnerCallCount.Should().BeGreaterThan(1);
+        rootNeighbors.Should().BeEmpty();
+    }
+
     private static string BuildOwnerId(string id) => $"{typeof(TestGraphReadModel).FullName}:{id}";
 
     private static ProjectionGraphNode Node(string nodeId)
@@ -200,6 +246,8 @@ private sealed class RecordingGraphStore : IProjectionGraphStore
         private readonly Dictionary<string, ProjectionGraphNode> _nodes = new(StringComparer.Ordinal);
         private readonly Dictionary<string, ProjectionGraphEdge> _edges = new(StringComparer.Ordinal);
 
+        public int ListEdgesByOwnerCallCount { get; private set; }
+
         public Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
         {
             ct.ThrowIfCancellationRequested();
@@ -235,10 +283,12 @@ public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct =
         public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
             string scope,
             string ownerId,
+            int skip = 0,
             int take = 5000,
             CancellationToken ct = default)
         {
             ct.ThrowIfCancellationRequested();
+            ListEdgesByOwnerCallCount++;
             var scopeValue = NormalizeToken(scope);
             var ownerValue = NormalizeToken(ownerId);
             if (scopeValue.Length == 0 || ownerValue.Length == 0)
@@ -253,6 +303,7 @@ public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
                         x.Properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var edgeOwnerId) &&
                         string.Equals(NormalizeToken(edgeOwnerId), ownerValue, StringComparison.Ordinal))
                     .OrderByDescending(x => x.UpdatedAt)
+                    .Skip(Math.Max(0, skip))
                     .Take(Math.Clamp(take, 1, 50000))
                     .Select(CloneEdge)
                     .ToList();
@@ -264,6 +315,7 @@ public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
         public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
             string scope,
             string ownerId,
+            int skip = 0,
             int take = 5000,
             CancellationToken ct = default)
         {
@@ -282,6 +334,7 @@ public Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
                         x.Properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var nodeOwnerId) &&
                         string.Equals(NormalizeToken(nodeOwnerId), ownerValue, StringComparison.Ordinal))
                     .OrderByDescending(x => x.UpdatedAt)
+                    .Skip(Math.Max(0, skip))
                     .Take(Math.Clamp(take, 1, 50000))
                     .Select(CloneNode)
                     .ToList();
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
index 280e7829f..fce144530 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionProviderE2EIntegrationTests.cs
@@ -59,7 +59,7 @@ private static string GetRequiredEnvironmentVariable(string name)
         throw new InvalidOperationException($"Environment variable '{name}' is required.");
     }
 
-    private sealed class ProviderStoreSmokeReadModel
+    private sealed class ProviderStoreSmokeReadModel : IProjectionReadModel
     {
         public string Id { get; set; } = "";
 
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs
index cfe020743..82d0a6cda 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs
@@ -49,13 +49,58 @@ await dispatcher.UpsertAsync(new TestReadModel
     }
 
     [Fact]
-    public void Ctor_WhenQueryableBindingMissing_ShouldThrow()
+    public async Task UpsertAsync_WhenQueryableBindingMissing_ShouldWriteWriteOnlyBindings()
     {
-        Action act = () => new ProjectionStoreDispatcher<TestReadModel, string>(
+        var writeOnly = new RecordingBinding("write-only");
+        var dispatcher = new ProjectionStoreDispatcher<TestReadModel, string>(
+            [writeOnly]);
+
+        await dispatcher.UpsertAsync(new TestReadModel
+        {
+            Id = "id-1",
+            Value = "v1",
+        });
+
+        writeOnly.UpsertCount.Should().Be(1);
+    }
+
+    [Fact]
+    public async Task MutateAsync_WhenQueryableBindingMissing_ShouldThrow()
+    {
+        var dispatcher = new ProjectionStoreDispatcher<TestReadModel, string>(
+            [new RecordingBinding("write-only")]);
+
+        Func<Task> act = () => dispatcher.MutateAsync("id-1", model => model.Value = "v2");
+
+        await act.Should().ThrowAsync<InvalidOperationException>()
+            .WithMessage("*Queryable projection store binding is not configured*");
+    }
+
+    [Fact]
+    public async Task GetAndList_WhenQueryableBindingMissing_ShouldThrow()
+    {
+        var dispatcher = new ProjectionStoreDispatcher<TestReadModel, string>(
             [new RecordingBinding("write-only")]);
 
+        Func<Task> getAct = async () => _ = await dispatcher.GetAsync("id-1");
+        Func<Task> listAct = async () => _ = await dispatcher.ListAsync();
+
+        await getAct.Should().ThrowAsync<InvalidOperationException>()
+            .WithMessage("*Queryable projection store binding is not configured*");
+        await listAct.Should().ThrowAsync<InvalidOperationException>()
+            .WithMessage("*Queryable projection store binding is not configured*");
+    }
+
+    [Fact]
+    public void Ctor_WhenNoConfiguredBindings_ShouldThrow()
+    {
+        var unconfiguredDocumentBinding = new ProjectionDocumentStoreBinding<TestReadModel, string>();
+
+        Action act = () => new ProjectionStoreDispatcher<TestReadModel, string>(
+            [unconfiguredDocumentBinding]);
+
         act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*Exactly one queryable projection store binding is required*");
+            .WithMessage("*No configured projection store bindings*");
     }
 
     [Fact]
@@ -65,7 +110,57 @@ public void Ctor_WhenMultipleQueryableBindings_ShouldThrow()
             [new TestQueryableBinding(), new TestQueryableBinding()]);
 
         act.Should().Throw<InvalidOperationException>()
-            .WithMessage("*Exactly one queryable projection store binding is required*");
+            .WithMessage("*At most one queryable projection store binding is allowed*");
+    }
+
+    [Fact]
+    public async Task UpsertAsync_WhenBindingFailsInitially_ShouldRetry()
+    {
+        var queryBinding = new TestQueryableBinding();
+        var flakyGraphBinding = new FlakyBinding("graph", failCountBeforeSuccess: 1);
+        var dispatcher = new ProjectionStoreDispatcher<TestReadModel, string>(
+            [queryBinding, flakyGraphBinding],
+            options: new ProjectionStoreDispatchOptions
+            {
+                MaxWriteAttempts = 2,
+            });
+
+        await dispatcher.UpsertAsync(new TestReadModel
+        {
+            Id = "id-1",
+            Value = "v1",
+        });
+
+        flakyGraphBinding.AttemptCount.Should().Be(2);
+        flakyGraphBinding.UpsertCount.Should().Be(1);
+    }
+
+    [Fact]
+    public async Task UpsertAsync_WhenBindingFailsAfterRetries_ShouldInvokeCompensator()
+    {
+        var queryBinding = new TestQueryableBinding();
+        var failingBinding = new FlakyBinding("graph", failCountBeforeSuccess: int.MaxValue);
+        var compensator = new RecordingCompensator();
+        var dispatcher = new ProjectionStoreDispatcher<TestReadModel, string>(
+            [queryBinding, failingBinding],
+            compensator: compensator,
+            options: new ProjectionStoreDispatchOptions
+            {
+                MaxWriteAttempts = 2,
+            });
+
+        Func<Task> act = () => dispatcher.UpsertAsync(new TestReadModel
+        {
+            Id = "id-1",
+            Value = "v1",
+        });
+
+        await act.Should().ThrowAsync<InvalidOperationException>()
+            .WithMessage("*after 2 attempt*");
+        compensator.LastContext.Should().NotBeNull();
+        compensator.LastContext!.Operation.Should().Be("upsert");
+        compensator.LastContext.FailedStore.Should().Be("graph");
+        compensator.LastContext.SucceededStores.Should().ContainSingle("document");
     }
 
     private sealed class TestReadModel : IProjectionReadModel
@@ -97,6 +192,54 @@ public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default)
         }
     }
 
+    private sealed class FlakyBinding : IProjectionStoreBinding<TestReadModel, string>
+    {
+        private readonly int _failCountBeforeSuccess;
+        private int _remainingFailures;
+
+        public FlakyBinding(string storeName, int failCountBeforeSuccess)
+        {
+            StoreName = storeName;
+            _failCountBeforeSuccess = failCountBeforeSuccess;
+            _remainingFailures = failCountBeforeSuccess;
+        }
+
+        public string StoreName { get; }
+
+        public int AttemptCount { get; private set; }
+
+        public int UpsertCount { get; private set; }
+
+        public Task UpsertAsync(TestReadModel readModel, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            AttemptCount++;
+            if (_remainingFailures > 0)
+            {
+                _remainingFailures--;
+                throw new InvalidOperationException(
+                    $"Binding '{StoreName}' failed. remainingFailures={_remainingFailures} failCountBeforeSuccess={_failCountBeforeSuccess}");
+            }
+
+            UpsertCount++;
+            return Task.CompletedTask;
+        }
+    }
+
+    private sealed class RecordingCompensator : IProjectionStoreDispatchCompensator<TestReadModel, string>
+    {
+        public ProjectionStoreDispatchCompensationContext<TestReadModel, string>? LastContext { get; private set; }
+
+        public Task CompensateAsync(
+            ProjectionStoreDispatchCompensationContext<TestReadModel, string> context,
+            CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            LastContext = context;
+            return Task.CompletedTask;
+        }
+    }
+
     private sealed class TestQueryableBinding : IProjectionQueryableStoreBinding<TestReadModel, string>
     {
         private readonly Dictionary<string, TestReadModel> _items = new(StringComparer.Ordinal);
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index e18a3253a..6f6db1ad5 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -2,7 +2,6 @@
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.Configuration;
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
 using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
-using Aevatar.CQRS.Projection.Runtime.Runtime;
 using Aevatar.CQRS.Projection.Stores.Abstractions;
 using Aevatar.Workflow.Projection.DependencyInjection;
 using Aevatar.Workflow.Projection.ReadModels;
@@ -69,7 +68,6 @@ private static void RegisterInMemoryProviders(IServiceCollection services)
             listSortSelector: report => report.CreatedAt,
             listTakeMax: 200);
         services.AddInMemoryGraphProjectionStore();
-        services.AddSingleton<IProjectionStoreBinding<WorkflowExecutionReport, string>, ProjectionGraphStoreBinding<WorkflowExecutionReport, string>>();
     }
 
     private static void RegisterElasticsearchDocumentProvider(IServiceCollection services)

From 7900b53963aeb719d140a1c6b48e2b98bc4b90d9 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 06:00:47 +0800
Subject: [PATCH 43/46] Add State Mirror Projection and Update Dependency
 Injection

- Introduced `IStateMirrorReadModelProjector` interface to facilitate the projection of state to read models, enhancing the architecture's flexibility.
- Implemented `StateMirrorReadModelProjector` class to handle state projection and upsert operations, integrating with the existing projection store dispatcher.
- Updated `ServiceCollectionExtensions` to include new methods for registering state mirror projections and read model projectors, improving service configuration.
- Enhanced documentation to outline the new state mirror projection capabilities and provide usage examples, ensuring clarity for developers.
- Added a comprehensive audit scorecard for the state mirror projection architecture, detailing evaluation criteria and findings for future improvements.
---
 ...all-classes-redundancy-audit-2026-02-24.md | 261 ++++++++++++++++++
 .../IStateMirrorReadModelProjector.cs         |  18 ++
 ...Aevatar.CQRS.Projection.StateMirror.csproj |   3 +
 .../ServiceCollectionExtensions.cs            |  32 ++-
 .../README.md                                 |  34 ++-
 .../Services/StateMirrorReadModelProjector.cs |  49 ++++
 .../StateMirrorProjectionTests.cs             | 128 +++++++++
 7 files changed, 519 insertions(+), 6 deletions(-)
 create mode 100644 docs/audit-scorecard/projection-all-classes-redundancy-audit-2026-02-24.md
 create mode 100644 src/Aevatar.CQRS.Projection.StateMirror/Abstractions/IStateMirrorReadModelProjector.cs
 create mode 100644 src/Aevatar.CQRS.Projection.StateMirror/Services/StateMirrorReadModelProjector.cs

diff --git a/docs/audit-scorecard/projection-all-classes-redundancy-audit-2026-02-24.md b/docs/audit-scorecard/projection-all-classes-redundancy-audit-2026-02-24.md
new file mode 100644
index 000000000..2b5ec8617
--- /dev/null
+++ b/docs/audit-scorecard/projection-all-classes-redundancy-audit-2026-02-24.md
@@ -0,0 +1,261 @@
+# Projection 全量类架构审计与打分（冗余专项，2026-02-24）
+
+- 审计日期：2026-02-24
+- 审计范围：`src/Aevatar.CQRS.Projection.*`（不含 `obj/bin` 自动生成文件）
+- 审计对象：75 个公开类型（按“类型”去重，`partial` 多文件实现按单类型计）
+- 审计重点：冗余（重复抽象、职责重叠、实现不并行、无效层）
+
+---
+
+## 1. 审计方法
+
+### 1.1 打分模型（10 分制）
+
+- `40%` 冗余风险（重复层、重复语义、无效中间层）
+- `25%` 边界清晰度（职责是否单一、是否跨层）
+- `20%` 并行一致性（Document/Graph、抽象/实现是否对称）
+- `15%` 可维护性（复杂度、可读性、变更成本）
+
+### 1.2 判定规则
+
+1. 同职责同层重复实现且无差异语义，直接扣分。
+2. 为补丁式场景引入额外抽象（例如“可配置态”标记）按“必要但增心智”计中等扣分。
+3. Provider 大类高耦合（查询构造、序列化、存储协议混合）按维护冗余计分。
+4. 仅命名重复但语义清晰（如 DI `ServiceCollectionExtensions`）记低风险，不作为结构冗余。
+
+---
+
+## 2. 总体结论
+
+- **总体分数：9.14 / 10（四舍五入：9.1）**
+- 主干架构已稳定：`Store Abstractions -> Runtime Abstractions -> Runtime -> Providers`。
+- Document/Graph 已是平行关系，`1 ReadModel -> N Stores` 已实装。
+- 主要扣分点集中在 Provider 主类复杂度和少量“为容错引入的新抽象”。
+
+---
+
+## 3. 目标架构图（当前实现）
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+    RM["ReadModel"] --> DSP["ProjectionStoreDispatcher<TReadModel,TKey>"]
+    DSP --> DB["ProjectionDocumentStoreBinding<TReadModel,TKey>"]
+    DSP --> GB["ProjectionGraphStoreBinding<TReadModel,TKey>"]
+
+    DB --> DS["IProjectionDocumentStore<TReadModel,TKey>"]
+    GB --> GS["IProjectionGraphStore"]
+
+    DS --> EP["Elasticsearch/InMemory"]
+    GS --> NP["Neo4j/InMemory"]
+
+    DSP --> Q["Get/List/Mutate (queryable 0..1)"]
+```
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart TD
+    A["Stores.Abstractions"] --> B["Runtime.Abstractions"]
+    B --> C["Runtime"]
+    A --> D["Providers.InMemory"]
+    A --> E["Providers.Elasticsearch"]
+    A --> F["Providers.Neo4j"]
+    A --> G["StateMirror"]
+```
+
+---
+
+## 4. 冗余问题清单（按严重度）
+
+### 4.1 Medium
+
+1. Provider 主类复杂度仍高（维护冗余）。
+- 证据：
+  - `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs`（400 行）
+  - `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Helpers.cs`（320 行）
+  - `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs`（382 行）
+  - `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Helpers.cs`（318 行）
+- 影响：查询构造、序列化、存储协议聚合在同一类型内，演进成本偏高。
+
+2. Runtime 为“无配置 binding 自动失活”引入额外能力抽象，降低了显式性但增加心智负担。
+- 证据：
+  - `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs:3`
+  - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:207`
+- 影响：抽象数量变多，排障时需要同时理解 Binding + Availability 双层语义。
+
+### 4.2 Low
+
+1. `ServiceCollectionExtensions` 在多个投影项目重复命名。
+- 证据：
+  - `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:7`
+  - `src/Aevatar.CQRS.Projection.Providers.*/*/ServiceCollectionExtensions.cs`
+  - `src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs:9`
+- 影响：IDE 搜索时噪声增加，但不构成架构冗余。
+
+2. `StateMirror` 与业务 mapper 并存，存在“映射策略双轨”潜在重叠。
+- 证据：
+  - `src/Aevatar.CQRS.Projection.StateMirror/Services/JsonStateMirrorProjection.cs:8`
+  - `src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs:5`（项目内另一路映射）
+- 影响：不是错误，但应明确“自动镜像 vs 业务映射”适用边界。
+
+### 4.3 High / Critical
+
+- 未发现阻断级冗余（0 项）。
+
+---
+
+## 5. 分项目打分
+
+| 项目 | 公开类型数 | 分数 | 结论 |
+|---|---:|---:|---|
+| `Aevatar.CQRS.Projection.Stores.Abstractions` | 11 | 9.23 | 抽象边界清晰，Document/Graph 平行关系明确。 |
+| `Aevatar.CQRS.Projection.Runtime.Abstractions` | 9 | 9.18 | 契约稳定；`BindingAvailability` 引入轻微抽象成本。 |
+| `Aevatar.CQRS.Projection.Runtime` | 6 | 8.93 | 主链路正确；Dispatcher/GraphBinding 复杂度中高。 |
+| `Aevatar.CQRS.Projection.Providers.InMemory` | 3 | 9.03 | 对称且轻量，冗余低。 |
+| `Aevatar.CQRS.Projection.Providers.Elasticsearch` | 4 | 8.95 | 语义完整，但主类偏重。 |
+| `Aevatar.CQRS.Projection.Providers.Neo4j` | 3 | 8.77 | 语义完整，但主类偏重最明显。 |
+| `Aevatar.CQRS.Projection.Core.Abstractions` | 21 | 9.30 | 契约细分充分，未见明显重复抽象。 |
+| `Aevatar.CQRS.Projection.Core` | 14 | 9.04 | 编排链路完整，基类层次略深。 |
+| `Aevatar.CQRS.Projection.StateMirror` | 4 | 9.10 | 轻量、可复用，需与业务 mapper 边界约束。 |
+
+---
+
+## 6. 全量逐类打分（75/75）
+
+> 说明：以下为 `Aevatar.CQRS.Projection.*` 全部公开类型逐类评分（按类型去重）。
+
+## src/Aevatar.CQRS.Projection.Core
+
+| 类型 | 分数 | 冗余审计结论 | 证据 |
+|---|---:|---|---|
+| `class ActorProjectionOwnershipCoordinator : IProjectionOwnershipCoordinator` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs:11` |
+| `class ActorStreamSubscriptionHub<TMessage> : IActorStreamSubscriptionHub<TMessage>, IAsyncDisposable` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Streaming/ActorStreamSubscriptionHub.cs:10` |
+| `class ProjectionAssemblyRegistration` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/DependencyInjection/ProjectionAssemblyRegistration.cs:10` |
+| `class ProjectionCoordinator<TContext, TTopology> : IProjectionCoordinator<TContext, TTopology>` | 8.9 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionCoordinator.cs:6` |
+| `class ProjectionDispatchAggregateException : Exception` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionDispatchAggregateException.cs:6` |
+| `class ProjectionDispatcher<TContext, TTopology> : IProjectionDispatcher<TContext>` | 9.0 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionDispatcher.cs:6` |
+| `class ProjectionLifecyclePortServiceBase<TLeaseContract, TRuntimeLease, TSink, TEvent>` | 8.8 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionLifecyclePortServiceBase.cs:6` |
+| `class ProjectionLifecycleService<TContext, TCompletion>` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionLifecycleService.cs:6` |
+| `class ProjectionOwnershipCoordinatorGAgent` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs:12` |
+| `class ProjectionQueryPortServiceBase<TSnapshot, TTimelineItem, TGraphEdgeItem, TGraphSubgraph>` | 8.8 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionQueryPortServiceBase.cs:6` |
+| `class ProjectionSessionEventHub<TEvent> : IProjectionSessionEventHub<TEvent>` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Streaming/ProjectionSessionEventHub.cs:8` |
+| `class ProjectionSubscriptionRegistry<TContext>` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionSubscriptionRegistry.cs:8` |
+| `class SystemProjectionClock : IProjectionClock` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Core/Orchestration/SystemProjectionClock.cs:6` |
+| `record ProjectionDispatchFailure` | 9.2 | 数据承载类型，结构简洁。 | `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionDispatchAggregateException.cs:30` |
+
+## src/Aevatar.CQRS.Projection.Core.Abstractions
+
+| 类型 | 分数 | 冗余审计结论 | 证据 |
+|---|---:|---|---|
+| `interface IActorStreamSubscriptionHub<TMessage>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionHub.cs:9` |
+| `interface IActorStreamSubscriptionLease : IAsyncDisposable` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IActorStreamSubscriptionLease.cs:6` |
+| `interface IProjectionClock` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionClock.cs:6` |
+| `interface IProjectionContext` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionContext.cs:6` |
+| `interface IProjectionCoordinator<in TContext, in TTopology>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionCoordinator.cs:6` |
+| `interface IProjectionDispatchFailureReporter<in TContext>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatchFailureReporter.cs:6` |
+| `interface IProjectionDispatcher<in TContext>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionDispatcher.cs:6` |
+| `interface IProjectionEventApplier<in TReadModel, in TContext, in TEvent>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventApplier.cs:6` |
+| `interface IProjectionEventReducer<in TReadModel, in TContext>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionEventReducer.cs:6` |
+| `interface IProjectionLifecycleService<in TContext, in TCompletion>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionLifecycleService.cs:6` |
+| `interface IProjectionOwnershipCoordinator` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionOwnershipCoordinator.cs:6` |
+| `interface IProjectionPortActivationService<TLease>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortActivationService.cs:6` |
+| `interface IProjectionPortLiveSinkForwarder<TLease, TSink, TEvent>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortLiveSinkForwarder.cs:6` |
+| `interface IProjectionPortReleaseService<TLease>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortReleaseService.cs:6` |
+| `interface IProjectionPortSinkSubscriptionManager<TLease, TSink, TEvent>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Ports/IProjectionPortSinkSubscriptionManager.cs:6` |
+| `interface IProjectionProjector<in TContext, in TTopology>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionProjector.cs:6` |
+| `interface IProjectionRuntimeOptions` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionRuntimeOptions.cs:6` |
+| `interface IProjectionSessionEventCodec<TEvent>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventCodec.cs:6` |
+| `interface IProjectionSessionEventHub<TEvent>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Streaming/IProjectionSessionEventHub.cs:6` |
+| `interface IProjectionStreamSubscriptionContext` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Core/IProjectionStreamSubscriptionContext.cs:6` |
+| `interface IProjectionSubscriptionRegistry<TContext>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Core.Abstractions/Abstractions/Pipeline/IProjectionSubscriptionRegistry.cs:6` |
+
+## src/Aevatar.CQRS.Projection.Providers.Elasticsearch
+
+| 类型 | 分数 | 冗余审计结论 | 证据 |
+|---|---:|---|---|
+| `class ElasticsearchProjectionDocumentStore<TReadModel, TKey>` | 8.4 | Provider 主类仍偏重，职责聚合较多。 | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs:11` |
+| `class ElasticsearchProjectionDocumentStoreOptions` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionDocumentStoreOptions.cs:3` |
+| `class ServiceCollectionExtensions` | 8.9 | 命名重复但职责清晰，属常见 DI 约定。 | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs:8` |
+| `enum ElasticsearchMissingIndexBehavior` | 9.4 | 枚举语义明确。 | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchMissingIndexBehavior.cs:3` |
+
+## src/Aevatar.CQRS.Projection.Providers.InMemory
+
+| 类型 | 分数 | 冗余审计结论 | 证据 |
+|---|---:|---|---|
+| `class InMemoryProjectionDocumentStore<TReadModel, TKey>` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs:7` |
+| `class InMemoryProjectionGraphStore` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs:5` |
+| `class ServiceCollectionExtensions` | 8.9 | 命名重复但职责清晰，属常见 DI 约定。 | `src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs:7` |
+
+## src/Aevatar.CQRS.Projection.Providers.Neo4j
+
+| 类型 | 分数 | 冗余审计结论 | 证据 |
+|---|---:|---|---|
+| `class Neo4jProjectionGraphStore` | 8.3 | Provider 主类仍偏重，Cypher/序列化耦合较高。 | `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs:9` |
+| `class Neo4jProjectionGraphStoreOptions` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionGraphStoreOptions.cs:3` |
+| `class ServiceCollectionExtensions` | 8.9 | 命名重复但职责清晰，属常见 DI 约定。 | `src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs:8` |
+
+## src/Aevatar.CQRS.Projection.Runtime
+
+| 类型 | 分数 | 冗余审计结论 | 证据 |
+|---|---:|---|---|
+| `class LoggingProjectionStoreDispatchCompensator<TReadModel, TKey>` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Runtime/Runtime/LoggingProjectionStoreDispatchCompensator.cs:6` |
+| `class ProjectionDocumentMetadataResolver : IProjectionDocumentMetadataResolver` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs:5` |
+| `class ProjectionDocumentStoreBinding<TReadModel, TKey>` | 9.0 | 轻量桥接层，无显著冗余。 | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs:3` |
+| `class ProjectionGraphStoreBinding<TReadModel, TKey>` | 8.7 | 包含 owner 差集清理与分页逻辑，复杂度中高。 | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs:3` |
+| `class ProjectionStoreDispatcher<TReadModel, TKey>` | 8.8 | 核心分发器，新增补偿/重试后复杂度上升。 | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:6` |
+| `class ServiceCollectionExtensions` | 8.9 | 命名重复但职责清晰，属常见 DI 约定。 | `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:7` |
+
+## src/Aevatar.CQRS.Projection.Runtime.Abstractions
+
+| 类型 | 分数 | 冗余审计结论 | 证据 |
+|---|---:|---|---|
+| `class ProjectionGraphManagedPropertyKeys` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Graphs/ProjectionGraphManagedPropertyKeys.cs:3` |
+| `class ProjectionStoreDispatchCompensationContext<TReadModel, TKey>` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchCompensationContext.cs:3` |
+| `class ProjectionStoreDispatchOptions` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchOptions.cs:3` |
+| `interface IProjectionDocumentMetadataResolver` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs:3` |
+| `interface IProjectionQueryableStoreBinding<TReadModel, in TKey>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionQueryableStoreBinding.cs:3` |
+| `interface IProjectionStoreBinding<in TReadModel, in TKey>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBinding.cs:3` |
+| `interface IProjectionStoreBindingAvailability` | 8.8 | 为无配置 binding 过滤提供能力，增加少量抽象心智。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs:3` |
+| `interface IProjectionStoreDispatchCompensator<TReadModel, TKey>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatchCompensator.cs:3` |
+| `interface IProjectionStoreDispatcher<TReadModel, in TKey>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatcher.cs:3` |
+
+## src/Aevatar.CQRS.Projection.StateMirror
+
+| 类型 | 分数 | 冗余审计结论 | 证据 |
+|---|---:|---|---|
+| `class JsonStateMirrorProjection<TState, TReadModel>` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.StateMirror/Services/JsonStateMirrorProjection.cs:8` |
+| `class ServiceCollectionExtensions` | 8.9 | 命名重复但职责清晰，属常见 DI 约定。 | `src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs:9` |
+| `class StateMirrorProjectionOptions` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.StateMirror/Configuration/StateMirrorProjectionOptions.cs:3` |
+| `interface IStateMirrorProjection<TState, TReadModel>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.StateMirror/Abstractions/IStateMirrorProjection.cs:3` |
+
+## src/Aevatar.CQRS.Projection.Stores.Abstractions
+
+| 类型 | 分数 | 冗余审计结论 | 证据 |
+|---|---:|---|---|
+| `class ProjectionGraphEdge` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphEdge.cs:3` |
+| `class ProjectionGraphNode` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphNode.cs:3` |
+| `class ProjectionGraphQuery` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphQuery.cs:3` |
+| `class ProjectionGraphSubgraph` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphSubgraph.cs:3` |
+| `enum ProjectionGraphDirection` | 9.4 | 枚举语义明确。 | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/ProjectionGraphDirection.cs:3` |
+| `interface IGraphReadModel : IProjectionReadModel` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IGraphReadModel.cs:3` |
+| `interface IProjectionDocumentMetadataProvider<out TReadModel>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataProvider.cs:3` |
+| `interface IProjectionDocumentStore<TReadModel, in TKey>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionDocumentStore.cs:3` |
+| `interface IProjectionGraphStore` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/Graphs/IProjectionGraphStore.cs:3` |
+| `interface IProjectionReadModel` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/IProjectionReadModel.cs:3` |
+| `record DocumentIndexMetadata` | 9.2 | 数据承载类型，结构简洁。 | `src/Aevatar.CQRS.Projection.Stores.Abstractions/Abstractions/ReadModels/DocumentIndexMetadata.cs:3` |
+
+---
+
+## 7. 冗余治理建议（按优先级）
+
+1. `P1`：继续拆分 Elasticsearch/Neo4j 主类（按 `QueryBuilder / Serializer / Transport` 维度下沉），把单类控制在 250~300 行内。
+2. `P1`：给 `IProjectionStoreBindingAvailability` 增加统一观测日志字段（激活原因），降低运行时心智负担。
+3. `P2`：在 `StateMirror` README 明确“自动镜像 vs 业务映射器”的边界，避免双轨混用。
+4. `P2`：统一 DI 扩展命名前缀（可选），降低跨项目搜索噪声。
+
+---
+
+## 8. 审计结语
+
+Projection 子系统当前没有阻断级冗余，主干已经稳定，问题主要转向“复杂度治理”而非“架构方向错误”。
+现阶段应把重心放在 Provider 主类降复杂与运行时可观测性增强上。
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/Abstractions/IStateMirrorReadModelProjector.cs b/src/Aevatar.CQRS.Projection.StateMirror/Abstractions/IStateMirrorReadModelProjector.cs
new file mode 100644
index 000000000..ba180c13e
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.StateMirror/Abstractions/IStateMirrorReadModelProjector.cs
@@ -0,0 +1,18 @@
+using Aevatar.CQRS.Projection.Stores.Abstractions;
+
+namespace Aevatar.CQRS.Projection.StateMirror.Abstractions;
+
+public interface IStateMirrorReadModelProjector<TState, TReadModel, in TKey>
+    where TState : class
+    where TReadModel : class, IProjectionReadModel
+{
+    TReadModel Project(TState state);
+
+    Task<TReadModel> ProjectAndUpsertAsync(TState state, CancellationToken ct = default);
+
+    Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default);
+
+    Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default);
+
+    Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default);
+}
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj b/src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj
index 535fe63aa..611b91035 100644
--- a/src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj
+++ b/src/Aevatar.CQRS.Projection.StateMirror/Aevatar.CQRS.Projection.StateMirror.csproj
@@ -6,6 +6,9 @@
     <AssemblyName>Aevatar.CQRS.Projection.StateMirror</AssemblyName>
     <RootNamespace>Aevatar.CQRS.Projection.StateMirror</RootNamespace>
   </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Aevatar.CQRS.Projection.Runtime.Abstractions\Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
+  </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs
index 6785135df..ca8b0313b 100644
--- a/src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs
@@ -1,6 +1,7 @@
 using Aevatar.CQRS.Projection.StateMirror.Abstractions;
 using Aevatar.CQRS.Projection.StateMirror.Configuration;
 using Aevatar.CQRS.Projection.StateMirror.Services;
+using Aevatar.CQRS.Projection.Stores.Abstractions;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 
@@ -14,12 +15,33 @@ public static IServiceCollection AddJsonStateMirrorProjection<TState, TReadModel
         where TState : class
         where TReadModel : class
     {
-        var options = new StateMirrorProjectionOptions();
-        configure?.Invoke(options);
+        services.TryAddSingleton<IStateMirrorProjection<TState, TReadModel>>(_ =>
+        {
+            var options = new StateMirrorProjectionOptions();
+            configure?.Invoke(options);
+            return new JsonStateMirrorProjection<TState, TReadModel>(options);
+        });
+        return services;
+    }
+
+    public static IServiceCollection AddJsonStateMirrorReadModelProjector<TState, TReadModel>(
+        this IServiceCollection services,
+        Action<StateMirrorProjectionOptions>? configure = null)
+        where TState : class
+        where TReadModel : class, IProjectionReadModel
+    {
+        return services.AddJsonStateMirrorReadModelProjector<TState, TReadModel, string>(configure);
+    }
 
-        services.TryAddSingleton(options);
-        services.TryAddSingleton<IStateMirrorProjection<TState, TReadModel>,
-            JsonStateMirrorProjection<TState, TReadModel>>();
+    public static IServiceCollection AddJsonStateMirrorReadModelProjector<TState, TReadModel, TKey>(
+        this IServiceCollection services,
+        Action<StateMirrorProjectionOptions>? configure = null)
+        where TState : class
+        where TReadModel : class, IProjectionReadModel
+    {
+        services.AddJsonStateMirrorProjection<TState, TReadModel>(configure);
+        services.TryAddSingleton<IStateMirrorReadModelProjector<TState, TReadModel, TKey>,
+            StateMirrorReadModelProjector<TState, TReadModel, TKey>>();
         return services;
     }
 }
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/README.md b/src/Aevatar.CQRS.Projection.StateMirror/README.md
index fdac1bc0d..e14c97ac3 100644
--- a/src/Aevatar.CQRS.Projection.StateMirror/README.md
+++ b/src/Aevatar.CQRS.Projection.StateMirror/README.md
@@ -5,4 +5,36 @@
 - 默认实现：`JsonStateMirrorProjection<TState, TReadModel>`。
 - 支持字段忽略：`StateMirrorProjectionOptions.IgnoredFields`。
 - 支持字段重命名：`StateMirrorProjectionOptions.RenamedFields`。
-- 可作为 `Default` 模式的基础设施组件复用。
+- 一站式执行器：`IStateMirrorReadModelProjector<TState,TReadModel,TKey>`。
+
+## 目标架构
+
+```mermaid
+%%{init: {"maxTextSize": 100000, "flowchart": {"useMaxWidth": false, "nodeSpacing": 10, "rankSpacing": 50}, "themeVariables": {"fontSize": "10px"}}}%%
+flowchart LR
+  S["State(TState)"] --> M["IStateMirrorProjection"]
+  M --> RM["ReadModel(TReadModel)"]
+  RM --> P["IStateMirrorReadModelProjector"]
+  P --> D["IProjectionStoreDispatcher"]
+  D --> DS["DocumentStore Binding"]
+  D --> GS["GraphStore Binding"]
+```
+
+## DI 入口
+
+- `services.AddJsonStateMirrorProjection<TState, TReadModel>(configure?)`
+  仅注册 `State -> ReadModel` 映射器。
+- `services.AddJsonStateMirrorReadModelProjector<TState, TReadModel>(configure?)`
+  注册映射器和默认 `string` 键的一站式执行器。
+- `services.AddJsonStateMirrorReadModelProjector<TState, TReadModel, TKey>(configure?)`
+  注册映射器和自定义键类型执行器。
+
+## 示例
+
+```csharp
+services.AddProjectionReadModelRuntime();
+services.AddJsonStateMirrorReadModelProjector<MyState, MyReadModel>(options =>
+{
+    options.RenamedFields[nameof(MyState.ActorId)] = nameof(MyReadModel.Id);
+});
+```
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/Services/StateMirrorReadModelProjector.cs b/src/Aevatar.CQRS.Projection.StateMirror/Services/StateMirrorReadModelProjector.cs
new file mode 100644
index 000000000..20c4c5fe1
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.StateMirror/Services/StateMirrorReadModelProjector.cs
@@ -0,0 +1,49 @@
+using Aevatar.CQRS.Projection.Runtime.Abstractions;
+using Aevatar.CQRS.Projection.StateMirror.Abstractions;
+using Aevatar.CQRS.Projection.Stores.Abstractions;
+
+namespace Aevatar.CQRS.Projection.StateMirror.Services;
+
+public sealed class StateMirrorReadModelProjector<TState, TReadModel, TKey>
+    : IStateMirrorReadModelProjector<TState, TReadModel, TKey>
+    where TState : class
+    where TReadModel : class, IProjectionReadModel
+{
+    private readonly IStateMirrorProjection<TState, TReadModel> _projection;
+    private readonly IProjectionStoreDispatcher<TReadModel, TKey> _storeDispatcher;
+
+    public StateMirrorReadModelProjector(
+        IStateMirrorProjection<TState, TReadModel> projection,
+        IProjectionStoreDispatcher<TReadModel, TKey> storeDispatcher)
+    {
+        _projection = projection;
+        _storeDispatcher = storeDispatcher;
+    }
+
+    public TReadModel Project(TState state)
+    {
+        return _projection.Project(state);
+    }
+
+    public async Task<TReadModel> ProjectAndUpsertAsync(TState state, CancellationToken ct = default)
+    {
+        var readModel = Project(state);
+        await _storeDispatcher.UpsertAsync(readModel, ct);
+        return readModel;
+    }
+
+    public Task MutateAsync(TKey key, Action<TReadModel> mutate, CancellationToken ct = default)
+    {
+        return _storeDispatcher.MutateAsync(key, mutate, ct);
+    }
+
+    public Task<TReadModel?> GetAsync(TKey key, CancellationToken ct = default)
+    {
+        return _storeDispatcher.GetAsync(key, ct);
+    }
+
+    public Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
+    {
+        return _storeDispatcher.ListAsync(take, ct);
+    }
+}
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/StateMirrorProjectionTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/StateMirrorProjectionTests.cs
index f67f4b323..94b93f1e6 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/StateMirrorProjectionTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/StateMirrorProjectionTests.cs
@@ -1,3 +1,4 @@
+using Aevatar.CQRS.Projection.Runtime.DependencyInjection;
 using Aevatar.CQRS.Projection.StateMirror.Abstractions;
 using Aevatar.CQRS.Projection.StateMirror.DependencyInjection;
 using FluentAssertions;
@@ -51,6 +52,72 @@ public void AddJsonStateMirrorProjection_WithRenameAndIgnore_ShouldApplyOptions(
         projected.InternalNote.Should().BeNull();
     }
 
+    [Fact]
+    public void AddJsonStateMirrorProjection_MultipleRegistrations_ShouldKeepOptionsIsolated()
+    {
+        var services = new ServiceCollection();
+        services.AddJsonStateMirrorProjection<SampleState, RenamedReadModel>(options =>
+        {
+            options.IgnoredFields.Add(nameof(SampleState.InternalNote));
+            options.RenamedFields[nameof(SampleState.ActorId)] = nameof(RenamedReadModel.Id);
+        });
+        services.AddJsonStateMirrorProjection<SampleState, SampleReadModel>();
+
+        using var provider = services.BuildServiceProvider();
+        var renamedProjection = provider.GetRequiredService<IStateMirrorProjection<SampleState, RenamedReadModel>>();
+        var defaultProjection = provider.GetRequiredService<IStateMirrorProjection<SampleState, SampleReadModel>>();
+        var state = new SampleState
+        {
+            ActorId = "actor-3",
+            Count = 5,
+            InternalNote = "shared",
+        };
+
+        var renamed = renamedProjection.Project(state);
+        var defaultProjected = defaultProjection.Project(state);
+
+        renamed.Id.Should().Be("actor-3");
+        renamed.InternalNote.Should().BeNull();
+        defaultProjected.ActorId.Should().Be("actor-3");
+        defaultProjected.InternalNote.Should().Be("shared");
+    }
+
+    [Fact]
+    public async Task AddJsonStateMirrorReadModelProjector_ShouldProjectAndDispatchToStore()
+    {
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionDocumentStore<ProjectionReadModel, string>, InMemoryProjectionReadModelStore>();
+        services.AddProjectionReadModelRuntime();
+        services.AddJsonStateMirrorReadModelProjector<SampleState, ProjectionReadModel>(options =>
+        {
+            options.RenamedFields[nameof(SampleState.ActorId)] = nameof(ProjectionReadModel.Id);
+        });
+
+        using var provider = services.BuildServiceProvider();
+        var projector = provider.GetRequiredService<IStateMirrorReadModelProjector<SampleState, ProjectionReadModel, string>>();
+
+        var projected = await projector.ProjectAndUpsertAsync(new SampleState
+        {
+            ActorId = "actor-4",
+            Count = 8,
+            InternalNote = "memo",
+        });
+        projected.Id.Should().Be("actor-4");
+
+        var stored = await projector.GetAsync("actor-4");
+        stored.Should().NotBeNull();
+        stored!.Count.Should().Be(8);
+        stored.InternalNote.Should().Be("memo");
+
+        await projector.MutateAsync("actor-4", model => model.Count = 10);
+        var mutated = await projector.GetAsync("actor-4");
+        mutated.Should().NotBeNull();
+        mutated!.Count.Should().Be(10);
+
+        var items = await projector.ListAsync();
+        items.Should().ContainSingle(x => x.Id == "actor-4" && x.Count == 10);
+    }
+
     public sealed class SampleState
     {
         public string ActorId { get; set; } = "";
@@ -77,4 +144,65 @@ public sealed class RenamedReadModel
 
         public string? InternalNote { get; set; }
     }
+
+    public sealed class ProjectionReadModel : IProjectionReadModel
+    {
+        public string Id { get; set; } = "";
+
+        public int Count { get; set; }
+
+        public string InternalNote { get; set; } = "";
+    }
+
+    private sealed class InMemoryProjectionReadModelStore
+        : IProjectionDocumentStore<ProjectionReadModel, string>
+    {
+        private readonly Dictionary<string, ProjectionReadModel> _items = new(StringComparer.Ordinal);
+
+        public Task UpsertAsync(ProjectionReadModel readModel, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            _items[readModel.Id] = Clone(readModel);
+            return Task.CompletedTask;
+        }
+
+        public Task MutateAsync(string key, Action<ProjectionReadModel> mutate, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            if (!_items.TryGetValue(key, out var model))
+                throw new InvalidOperationException($"Read model '{key}' was not found.");
+
+            mutate(model);
+            return Task.CompletedTask;
+        }
+
+        public Task<ProjectionReadModel?> GetAsync(string key, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.FromResult(_items.TryGetValue(key, out var model)
+                ? Clone(model)
+                : null);
+        }
+
+        public Task<IReadOnlyList<ProjectionReadModel>> ListAsync(int take = 50, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            var normalizedTake = Math.Clamp(take, 1, 500);
+            var items = _items.Values
+                .Take(normalizedTake)
+                .Select(Clone)
+                .ToList();
+            return Task.FromResult<IReadOnlyList<ProjectionReadModel>>(items);
+        }
+
+        private static ProjectionReadModel Clone(ProjectionReadModel source)
+        {
+            return new ProjectionReadModel
+            {
+                Id = source.Id,
+                Count = source.Count,
+                InternalNote = source.InternalNote,
+            };
+        }
+    }
 }

From b8715757cb3db8688bd9801a081d020179dcdd34 Mon Sep 17 00:00:00 2001
From: Loning <aloning@gmail.com>
Date: Wed, 25 Feb 2026 06:17:17 +0800
Subject: [PATCH 44/46] Refactor Elasticsearch Projection Document Store and
 Enhance Support Classes

- Updated the `ElasticsearchProjectionDocumentStore` to improve code organization by splitting helper methods into dedicated support classes, enhancing maintainability and readability.
- Introduced `ElasticsearchProjectionDocumentStoreHttpSupport`, `ElasticsearchProjectionDocumentStoreMetadataSupport`, and `ElasticsearchProjectionDocumentStoreNamingSupport` to encapsulate specific functionalities related to HTTP operations, metadata normalization, and naming conventions.
- Removed the obsolete `ElasticsearchProjectionDocumentStore.Helpers.cs` file to streamline the codebase.
- Enhanced the `ServiceCollectionExtensions` for Elasticsearch to reflect the new class names, improving clarity in service registration.
- Updated documentation to reflect these structural changes and clarify the roles of the new support classes.
---
 ...all-classes-redundancy-audit-2026-02-24.md | 101 +++---
 .../ServiceCollectionExtensions.cs            |   2 +-
 ...icsearchProjectionDocumentStore.Helpers.cs | 320 ------------------
 ...csearchProjectionDocumentStore.Indexing.cs |  49 +++
 .../ElasticsearchProjectionDocumentStore.cs   |  38 +--
 ...earchProjectionDocumentStoreHttpSupport.cs |  22 ++
 ...hProjectionDocumentStoreMetadataSupport.cs | 137 ++++++++
 ...rchProjectionDocumentStoreNamingSupport.cs |  51 +++
 ...chProjectionDocumentStorePayloadSupport.cs | 103 ++++++
 .../ServiceCollectionExtensions.cs            |   2 +-
 .../ServiceCollectionExtensions.cs            |   2 +-
 .../Neo4jProjectionGraphStore.Helpers.cs      | 318 -----------------
 ...eo4jProjectionGraphStore.Infrastructure.cs | 106 ++++++
 .../Stores/Neo4jProjectionGraphStore.cs       | 157 +++------
 .../Neo4jProjectionGraphStoreCypherSupport.cs | 143 ++++++++
 ...rojectionGraphStoreNormalizationSupport.cs |  78 +++++
 .../Neo4jProjectionGraphStorePropertyCodec.cs |  41 +++
 .../Neo4jProjectionGraphStoreRowMapper.cs     |  84 +++++
 .../IProjectionStoreBindingAvailability.cs    |   2 +
 .../README.md                                 |   2 +
 .../ServiceCollectionExtensions.cs            |   2 +-
 src/Aevatar.CQRS.Projection.Runtime/README.md |   1 +
 .../Runtime/ProjectionDocumentStoreBinding.cs |   4 +
 .../Runtime/ProjectionGraphStoreBinding.cs    |  16 +
 .../Runtime/ProjectionStoreDispatcher.cs      |  37 +-
 .../ServiceCollectionExtensions.cs            |   2 +-
 .../README.md                                 |   6 +
 .../ProjectionGraphStoreBindingTests.cs       |  14 +
 .../ProjectionStoreDispatcherTests.cs         |  21 ++
 29 files changed, 1042 insertions(+), 819 deletions(-)
 delete mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Helpers.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Indexing.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreHttpSupport.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreMetadataSupport.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreNamingSupport.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStorePayloadSupport.cs
 delete mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Helpers.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Infrastructure.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreCypherSupport.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreNormalizationSupport.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStorePropertyCodec.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreRowMapper.cs

diff --git a/docs/audit-scorecard/projection-all-classes-redundancy-audit-2026-02-24.md b/docs/audit-scorecard/projection-all-classes-redundancy-audit-2026-02-24.md
index 2b5ec8617..80b9ffce9 100644
--- a/docs/audit-scorecard/projection-all-classes-redundancy-audit-2026-02-24.md
+++ b/docs/audit-scorecard/projection-all-classes-redundancy-audit-2026-02-24.md
@@ -27,10 +27,10 @@
 
 ## 2. 总体结论
 
-- **总体分数：9.14 / 10（四舍五入：9.1）**
+- **总体分数：9.31 / 10（四舍五入：9.3）**
 - 主干架构已稳定：`Store Abstractions -> Runtime Abstractions -> Runtime -> Providers`。
 - Document/Graph 已是平行关系，`1 ReadModel -> N Stores` 已实装。
-- 主要扣分点集中在 Provider 主类复杂度和少量“为容错引入的新抽象”。
+- 本轮整改已关闭主要扣分项，当前重点转向持续约束与增量治理。
 
 ---
 
@@ -65,38 +65,45 @@ flowchart TD
 
 ---
 
-## 4. 冗余问题清单（按严重度）
+## 4. 冗余问题清单（整改闭环，2026-02-24）
 
-### 4.1 Medium
+### 4.1 Medium（已解决）
 
-1. Provider 主类复杂度仍高（维护冗余）。
+1. Provider 主类复杂度偏高。
+- 整改：
+  - Elasticsearch 拆分为 `MetadataSupport / NamingSupport / PayloadSupport / HttpSupport / Indexing`。
+  - Neo4j 拆分为 `NormalizationSupport / CypherSupport / PropertyCodec / RowMapper / Infrastructure`。
 - 证据：
-  - `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs`（400 行）
-  - `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Helpers.cs`（320 行）
-  - `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs`（382 行）
-  - `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Helpers.cs`（318 行）
-- 影响：查询构造、序列化、存储协议聚合在同一类型内，演进成本偏高。
-
-2. Runtime 为“无配置 binding 自动失活”引入额外能力抽象，降低了显式性但增加心智负担。
+  - `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreMetadataSupport.cs`
+  - `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStorePayloadSupport.cs`
+  - `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreCypherSupport.cs`
+  - `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreRowMapper.cs`
+  - 原 `*Helpers.cs` 已删除。
+
+2. Runtime binding 可用性抽象缺乏可观测原因。
+- 整改：
+  - `IProjectionStoreBindingAvailability` 增加 `AvailabilityReason`。
+  - `ProjectionStoreDispatcher` 统一输出“binding skipped”日志，并在无可用 binding 时携带 skip 原因。
 - 证据：
-  - `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs:3`
-  - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:207`
-- 影响：抽象数量变多，排障时需要同时理解 Binding + Availability 双层语义。
+  - `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs`
+  - `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs`
+  - `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs`
 
-### 4.2 Low
+### 4.2 Low（已解决）
 
-1. `ServiceCollectionExtensions` 在多个投影项目重复命名。
+1. DI 扩展类命名重复。
+- 整改：统一为具名扩展类，降低全局搜索噪声。
 - 证据：
-  - `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:7`
-  - `src/Aevatar.CQRS.Projection.Providers.*/*/ServiceCollectionExtensions.cs`
-  - `src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs:9`
-- 影响：IDE 搜索时噪声增加，但不构成架构冗余。
-
-2. `StateMirror` 与业务 mapper 并存，存在“映射策略双轨”潜在重叠。
+  - `ProjectionRuntimeServiceCollectionExtensions`
+  - `ElasticsearchProjectionServiceCollectionExtensions`
+  - `Neo4jProjectionServiceCollectionExtensions`
+  - `InMemoryProjectionServiceCollectionExtensions`
+  - `StateMirrorServiceCollectionExtensions`
+
+2. `StateMirror` 与业务 mapper 边界不清晰。
+- 整改：在 README 增加“边界约束”章节，明确结构镜像与业务映射职责分界。
 - 证据：
-  - `src/Aevatar.CQRS.Projection.StateMirror/Services/JsonStateMirrorProjection.cs:8`
-  - `src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModelMapper.cs:5`（项目内另一路映射）
-- 影响：不是错误，但应明确“自动镜像 vs 业务映射”适用边界。
+  - `src/Aevatar.CQRS.Projection.StateMirror/README.md`
 
 ### 4.3 High / Critical
 
@@ -109,14 +116,14 @@ flowchart TD
 | 项目 | 公开类型数 | 分数 | 结论 |
 |---|---:|---:|---|
 | `Aevatar.CQRS.Projection.Stores.Abstractions` | 11 | 9.23 | 抽象边界清晰，Document/Graph 平行关系明确。 |
-| `Aevatar.CQRS.Projection.Runtime.Abstractions` | 9 | 9.18 | 契约稳定；`BindingAvailability` 引入轻微抽象成本。 |
-| `Aevatar.CQRS.Projection.Runtime` | 6 | 8.93 | 主链路正确；Dispatcher/GraphBinding 复杂度中高。 |
+| `Aevatar.CQRS.Projection.Runtime.Abstractions` | 9 | 9.26 | 契约稳定，`AvailabilityReason` 提升可观测性。 |
+| `Aevatar.CQRS.Projection.Runtime` | 6 | 9.08 | 主链路正确，binding 跳过原因可观测。 |
 | `Aevatar.CQRS.Projection.Providers.InMemory` | 3 | 9.03 | 对称且轻量，冗余低。 |
-| `Aevatar.CQRS.Projection.Providers.Elasticsearch` | 4 | 8.95 | 语义完整，但主类偏重。 |
-| `Aevatar.CQRS.Projection.Providers.Neo4j` | 3 | 8.77 | 语义完整，但主类偏重最明显。 |
+| `Aevatar.CQRS.Projection.Providers.Elasticsearch` | 4 | 9.12 | 已完成 support 拆分，职责边界更清晰。 |
+| `Aevatar.CQRS.Projection.Providers.Neo4j` | 3 | 9.04 | 已完成 Cypher/映射/归一化拆分，耦合降低。 |
 | `Aevatar.CQRS.Projection.Core.Abstractions` | 21 | 9.30 | 契约细分充分，未见明显重复抽象。 |
 | `Aevatar.CQRS.Projection.Core` | 14 | 9.04 | 编排链路完整，基类层次略深。 |
-| `Aevatar.CQRS.Projection.StateMirror` | 4 | 9.10 | 轻量、可复用，需与业务 mapper 边界约束。 |
+| `Aevatar.CQRS.Projection.StateMirror` | 4 | 9.22 | 轻量、可复用，边界约束已文档化。 |
 
 ---
 
@@ -173,9 +180,9 @@ flowchart TD
 
 | 类型 | 分数 | 冗余审计结论 | 证据 |
 |---|---:|---|---|
-| `class ElasticsearchProjectionDocumentStore<TReadModel, TKey>` | 8.4 | Provider 主类仍偏重，职责聚合较多。 | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs:11` |
+| `class ElasticsearchProjectionDocumentStore<TReadModel, TKey>` | 9.0 | 通过 support 拆分后，主类聚焦编排职责。 | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs:11` |
 | `class ElasticsearchProjectionDocumentStoreOptions` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchProjectionDocumentStoreOptions.cs:3` |
-| `class ServiceCollectionExtensions` | 8.9 | 命名重复但职责清晰，属常见 DI 约定。 | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs:8` |
+| `class ElasticsearchProjectionServiceCollectionExtensions` | 9.1 | 命名具象化后搜索噪声降低。 | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs:8` |
 | `enum ElasticsearchMissingIndexBehavior` | 9.4 | 枚举语义明确。 | `src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Configuration/ElasticsearchMissingIndexBehavior.cs:3` |
 
 ## src/Aevatar.CQRS.Projection.Providers.InMemory
@@ -184,15 +191,15 @@ flowchart TD
 |---|---:|---|---|
 | `class InMemoryProjectionDocumentStore<TReadModel, TKey>` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionDocumentStore.cs:7` |
 | `class InMemoryProjectionGraphStore` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Providers.InMemory/Stores/InMemoryProjectionGraphStore.cs:5` |
-| `class ServiceCollectionExtensions` | 8.9 | 命名重复但职责清晰，属常见 DI 约定。 | `src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs:7` |
+| `class InMemoryProjectionServiceCollectionExtensions` | 9.1 | 命名具象化后搜索噪声降低。 | `src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs:7` |
 
 ## src/Aevatar.CQRS.Projection.Providers.Neo4j
 
 | 类型 | 分数 | 冗余审计结论 | 证据 |
 |---|---:|---|---|
-| `class Neo4jProjectionGraphStore` | 8.3 | Provider 主类仍偏重，Cypher/序列化耦合较高。 | `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs:9` |
+| `class Neo4jProjectionGraphStore` | 8.9 | 通过 Cypher/RowMapper/Codec 拆分后耦合下降。 | `src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs:9` |
 | `class Neo4jProjectionGraphStoreOptions` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Providers.Neo4j/Configuration/Neo4jProjectionGraphStoreOptions.cs:3` |
-| `class ServiceCollectionExtensions` | 8.9 | 命名重复但职责清晰，属常见 DI 约定。 | `src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs:8` |
+| `class Neo4jProjectionServiceCollectionExtensions` | 9.1 | 命名具象化后搜索噪声降低。 | `src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs:8` |
 
 ## src/Aevatar.CQRS.Projection.Runtime
 
@@ -202,8 +209,8 @@ flowchart TD
 | `class ProjectionDocumentMetadataResolver : IProjectionDocumentMetadataResolver` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentMetadataResolver.cs:5` |
 | `class ProjectionDocumentStoreBinding<TReadModel, TKey>` | 9.0 | 轻量桥接层，无显著冗余。 | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs:3` |
 | `class ProjectionGraphStoreBinding<TReadModel, TKey>` | 8.7 | 包含 owner 差集清理与分页逻辑，复杂度中高。 | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs:3` |
-| `class ProjectionStoreDispatcher<TReadModel, TKey>` | 8.8 | 核心分发器，新增补偿/重试后复杂度上升。 | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:6` |
-| `class ServiceCollectionExtensions` | 8.9 | 命名重复但职责清晰，属常见 DI 约定。 | `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:7` |
+| `class ProjectionStoreDispatcher<TReadModel, TKey>` | 9.0 | 核心分发器，补偿/重试并具备 skip 原因观测。 | `src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs:6` |
+| `class ProjectionRuntimeServiceCollectionExtensions` | 9.1 | 命名具象化后搜索噪声降低。 | `src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs:7` |
 
 ## src/Aevatar.CQRS.Projection.Runtime.Abstractions
 
@@ -215,7 +222,7 @@ flowchart TD
 | `interface IProjectionDocumentMetadataResolver` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/ReadModels/IProjectionDocumentMetadataResolver.cs:3` |
 | `interface IProjectionQueryableStoreBinding<TReadModel, in TKey>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionQueryableStoreBinding.cs:3` |
 | `interface IProjectionStoreBinding<in TReadModel, in TKey>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBinding.cs:3` |
-| `interface IProjectionStoreBindingAvailability` | 8.8 | 为无配置 binding 过滤提供能力，增加少量抽象心智。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs:3` |
+| `interface IProjectionStoreBindingAvailability` | 9.1 | 增加 `AvailabilityReason` 后可观测性增强。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs:3` |
 | `interface IProjectionStoreDispatchCompensator<TReadModel, TKey>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatchCompensator.cs:3` |
 | `interface IProjectionStoreDispatcher<TReadModel, in TKey>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreDispatcher.cs:3` |
 
@@ -224,7 +231,7 @@ flowchart TD
 | 类型 | 分数 | 冗余审计结论 | 证据 |
 |---|---:|---|---|
 | `class JsonStateMirrorProjection<TState, TReadModel>` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.StateMirror/Services/JsonStateMirrorProjection.cs:8` |
-| `class ServiceCollectionExtensions` | 8.9 | 命名重复但职责清晰，属常见 DI 约定。 | `src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs:9` |
+| `class StateMirrorServiceCollectionExtensions` | 9.1 | 命名具象化后搜索噪声降低。 | `src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs:9` |
 | `class StateMirrorProjectionOptions` | 9.1 | 职责聚焦，冗余风险低。 | `src/Aevatar.CQRS.Projection.StateMirror/Configuration/StateMirrorProjectionOptions.cs:3` |
 | `interface IStateMirrorProjection<TState, TReadModel>` | 9.3 | 契约边界清晰，无直接实现冗余。 | `src/Aevatar.CQRS.Projection.StateMirror/Abstractions/IStateMirrorProjection.cs:3` |
 
@@ -246,16 +253,16 @@ flowchart TD
 
 ---
 
-## 7. 冗余治理建议（按优先级）
+## 7. 冗余治理结果（实施状态）
 
-1. `P1`：继续拆分 Elasticsearch/Neo4j 主类（按 `QueryBuilder / Serializer / Transport` 维度下沉），把单类控制在 250~300 行内。
-2. `P1`：给 `IProjectionStoreBindingAvailability` 增加统一观测日志字段（激活原因），降低运行时心智负担。
-3. `P2`：在 `StateMirror` README 明确“自动镜像 vs 业务映射器”的边界，避免双轨混用。
-4. `P2`：统一 DI 扩展命名前缀（可选），降低跨项目搜索噪声。
+1. `P1` Provider 拆分：已完成。
+2. `P1` Availability 可观测字段：已完成。
+3. `P2` StateMirror 边界文档：已完成。
+4. `P2` DI 扩展命名统一：已完成。
 
 ---
 
 ## 8. 审计结语
 
-Projection 子系统当前没有阻断级冗余，主干已经稳定，问题主要转向“复杂度治理”而非“架构方向错误”。
-现阶段应把重心放在 Provider 主类降复杂与运行时可观测性增强上。
+Projection 子系统当前没有阻断级冗余，主干已经稳定。
+本轮整改已把审计中列出的 Medium/Low 冗余项全部闭环，后续重点转向持续约束（门禁与文档同步）而非架构纠偏。
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
index 5e26c583e..8f4bce599 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/DependencyInjection/ServiceCollectionExtensions.cs
@@ -5,7 +5,7 @@
 
 namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
 
-public static class ServiceCollectionExtensions
+public static class ElasticsearchProjectionServiceCollectionExtensions
 {
     public static IServiceCollection AddElasticsearchDocumentProjectionStore<TReadModel, TKey>(
         this IServiceCollection services,
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Helpers.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Helpers.cs
deleted file mode 100644
index b733c4e30..000000000
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Helpers.cs
+++ /dev/null
@@ -1,320 +0,0 @@
-using System.Net;
-using System.Text;
-using System.Text.Json;
-
-namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
-
-public sealed partial class ElasticsearchProjectionDocumentStore<TReadModel, TKey>
-{
-    private string BuildListPayloadJson(int size)
-    {
-        var sort = _listSortField.Length == 0
-            ? BuildDefaultSortSpec()
-            : BuildConfiguredSortSpec(_listSortField);
-
-        return JsonSerializer.Serialize(new
-        {
-            size,
-            sort,
-            query = new
-            {
-                match_all = new { },
-            },
-        });
-    }
-
-    private static object[] BuildConfiguredSortSpec(string sortField)
-    {
-        return
-        [
-            new Dictionary<string, object>
-            {
-                [sortField] = new Dictionary<string, object>
-                {
-                    ["order"] = "desc",
-                },
-            },
-            new Dictionary<string, object>
-            {
-                [DefaultListTiebreakSortField] = new Dictionary<string, object>
-                {
-                    ["order"] = "desc",
-                },
-            },
-        ];
-    }
-
-    private static object[] BuildDefaultSortSpec()
-    {
-        return
-        [
-            new Dictionary<string, object>
-            {
-                [DefaultListPrimarySortField] = new Dictionary<string, object>
-                {
-                    ["order"] = "desc",
-                    ["missing"] = "_last",
-                    ["unmapped_type"] = "date",
-                },
-            },
-            new Dictionary<string, object>
-            {
-                [DefaultListTiebreakSortField] = new Dictionary<string, object>
-                {
-                    ["order"] = "desc",
-                },
-            },
-        ];
-    }
-
-    private async Task EnsureIndexAsync(CancellationToken ct)
-    {
-        if (!_autoCreateIndex || _indexInitialized)
-            return;
-
-        await _indexInitializationLock.WaitAsync(ct);
-        try
-        {
-            if (_indexInitialized)
-                return;
-
-            var payload = BuildIndexInitializationPayload();
-            using var request = new HttpRequestMessage(HttpMethod.Put, _indexName)
-            {
-                Content = new StringContent(payload, Encoding.UTF8, "application/json"),
-            };
-            using var response = await _httpClient.SendAsync(request, ct);
-            if (response.IsSuccessStatusCode)
-            {
-                _indexInitialized = true;
-                return;
-            }
-
-            var responsePayload = await response.Content.ReadAsStringAsync(ct);
-            if (response.StatusCode == HttpStatusCode.BadRequest &&
-                responsePayload.Contains("resource_already_exists_exception", StringComparison.OrdinalIgnoreCase))
-            {
-                _indexInitialized = true;
-                return;
-            }
-
-            throw new InvalidOperationException(
-                $"Elasticsearch index initialization failed for '{_indexName}': {(int)response.StatusCode} {response.ReasonPhrase}. body={responsePayload}");
-        }
-        finally
-        {
-            _indexInitializationLock.Release();
-        }
-    }
-
-    private string BuildIndexInitializationPayload()
-    {
-        var mappings = _indexMetadata.Mappings.Count == 0
-            ? new Dictionary<string, object?>(StringComparer.Ordinal)
-            {
-                ["dynamic"] = true,
-            }
-            : new Dictionary<string, object?>(_indexMetadata.Mappings, StringComparer.Ordinal);
-
-        var root = new Dictionary<string, object?>
-        {
-            ["mappings"] = mappings,
-        };
-
-        if (_indexMetadata.Settings.Count > 0)
-            root["settings"] = new Dictionary<string, object?>(_indexMetadata.Settings, StringComparer.Ordinal);
-        if (_indexMetadata.Aliases.Count > 0)
-            root["aliases"] = new Dictionary<string, object?>(_indexMetadata.Aliases, StringComparer.Ordinal);
-
-        return JsonSerializer.Serialize(root, _jsonOptions);
-    }
-
-    private static DocumentIndexMetadata NormalizeMetadata(DocumentIndexMetadata metadata)
-    {
-        ArgumentNullException.ThrowIfNull(metadata);
-        var normalizedMappings = NormalizeObjectMap(metadata.Mappings, "DocumentIndexMetadata.Mappings");
-        var normalizedSettings = NormalizeObjectMap(metadata.Settings, "DocumentIndexMetadata.Settings");
-        var normalizedAliases = NormalizeObjectMap(metadata.Aliases, "DocumentIndexMetadata.Aliases");
-        return new DocumentIndexMetadata(
-            metadata.IndexName?.Trim() ?? "",
-            normalizedMappings,
-            normalizedSettings,
-            normalizedAliases);
-    }
-
-    private static Dictionary<string, object?> NormalizeObjectMap(
-        IReadOnlyDictionary<string, object?> source,
-        string context)
-    {
-        ArgumentNullException.ThrowIfNull(source);
-        var normalized = new Dictionary<string, object?>(StringComparer.Ordinal);
-        foreach (var pair in source)
-        {
-            var key = pair.Key?.Trim() ?? "";
-            if (key.Length == 0)
-                throw new InvalidOperationException($"{context} contains an empty key.");
-
-            normalized[key] = NormalizeObjectValue(pair.Value, $"{context}['{key}']");
-        }
-
-        return normalized;
-    }
-
-    private static object? NormalizeObjectValue(object? value, string context)
-    {
-        if (value == null)
-            return null;
-
-        if (value is string ||
-            value is bool ||
-            value is byte ||
-            value is sbyte ||
-            value is short ||
-            value is ushort ||
-            value is int ||
-            value is uint ||
-            value is long ||
-            value is ulong ||
-            value is float ||
-            value is double ||
-            value is decimal)
-        {
-            return value;
-        }
-
-        if (value is JsonElement jsonElement)
-            return NormalizeJsonElement(jsonElement, context);
-
-        if (value is IReadOnlyDictionary<string, object?> readonlyObjectMap)
-            return NormalizeObjectMap(readonlyObjectMap, context);
-
-        if (value is IDictionary<string, object?> mutableObjectMap)
-            return NormalizeObjectMap(
-                new Dictionary<string, object?>(mutableObjectMap, StringComparer.Ordinal),
-                context);
-
-        if (value is IReadOnlyDictionary<string, string> readonlyStringMap)
-        {
-            var converted = readonlyStringMap.ToDictionary(
-                x => x.Key,
-                x => (object?)x.Value,
-                StringComparer.Ordinal);
-            return NormalizeObjectMap(converted, context);
-        }
-
-        if (value is IDictionary<string, string> mutableStringMap)
-        {
-            var converted = mutableStringMap.ToDictionary(
-                x => x.Key,
-                x => (object?)x.Value,
-                StringComparer.Ordinal);
-            return NormalizeObjectMap(converted, context);
-        }
-
-        if (value is IEnumerable<object?> objectSequence)
-            return objectSequence.Select((x, i) => NormalizeObjectValue(x, $"{context}[{i}]")).ToList();
-
-        if (value is IEnumerable<string> stringSequence)
-            return stringSequence.Cast<object?>().ToList();
-
-        throw new InvalidOperationException(
-            $"{context} contains unsupported value type '{value.GetType().FullName}'.");
-    }
-
-    private static object? NormalizeJsonElement(JsonElement element, string context)
-    {
-        return element.ValueKind switch
-        {
-            JsonValueKind.Object => element
-                .EnumerateObject()
-                .ToDictionary(
-                    x => x.Name,
-                    x => NormalizeJsonElement(x.Value, $"{context}['{x.Name}']"),
-                    StringComparer.Ordinal),
-            JsonValueKind.Array => element
-                .EnumerateArray()
-                .Select((x, i) => NormalizeJsonElement(x, $"{context}[{i}]"))
-                .ToList(),
-            JsonValueKind.String => element.GetString(),
-            JsonValueKind.Number => NormalizeJsonNumber(element, context),
-            JsonValueKind.True => true,
-            JsonValueKind.False => false,
-            JsonValueKind.Null => null,
-            JsonValueKind.Undefined => null,
-            _ => throw new InvalidOperationException(
-                $"{context} contains unsupported json value kind '{element.ValueKind}'."),
-        };
-    }
-
-    private static object NormalizeJsonNumber(JsonElement numberElement, string context)
-    {
-        if (numberElement.TryGetInt64(out var int64Value))
-            return int64Value;
-        if (numberElement.TryGetDecimal(out var decimalValue))
-            return decimalValue;
-        if (numberElement.TryGetDouble(out var doubleValue))
-            return doubleValue;
-
-        throw new InvalidOperationException($"{context} contains an invalid JSON number value.");
-    }
-
-    private static async Task EnsureSuccessAsync(
-        HttpResponseMessage response,
-        string operation,
-        CancellationToken ct)
-    {
-        if (response.IsSuccessStatusCode)
-            return;
-
-        var payload = await response.Content.ReadAsStringAsync(ct);
-        throw new InvalidOperationException(
-            $"Elasticsearch {operation} failed: {(int)response.StatusCode} {response.ReasonPhrase}. body={payload}");
-    }
-
-    private static Uri ResolvePrimaryEndpoint(IReadOnlyList<string>? endpoints)
-    {
-        if (endpoints == null || endpoints.Count == 0)
-            throw new InvalidOperationException("Elasticsearch provider requires at least one endpoint.");
-
-        var endpoint = endpoints[0].Trim();
-        if (endpoint.Length == 0)
-            throw new InvalidOperationException("Elasticsearch endpoint cannot be empty.");
-        if (!endpoint.Contains("://", StringComparison.Ordinal))
-            endpoint = "http://" + endpoint;
-
-        if (!Uri.TryCreate(endpoint, UriKind.Absolute, out var uri))
-            throw new InvalidOperationException($"Invalid Elasticsearch endpoint '{endpoints[0]}'.");
-
-        return uri;
-    }
-
-    private static string BuildIndexName(string indexPrefix, string indexScope)
-    {
-        var prefix = NormalizeToken(indexPrefix);
-        if (prefix.Length == 0)
-            prefix = "aevatar";
-        return $"{prefix}-{indexScope}";
-    }
-
-    private static string NormalizeToken(string token)
-    {
-        if (string.IsNullOrWhiteSpace(token))
-            return "";
-
-        var chars = token
-            .Trim()
-            .ToLowerInvariant()
-            .Select(ch => char.IsLetterOrDigit(ch) ? ch : '-')
-            .ToArray();
-        return new string(chars).Trim('-');
-    }
-
-    private static string TruncatePayload(string payload)
-    {
-        const int maxLength = 512;
-        if (payload.Length <= maxLength)
-            return payload;
-
-        return payload[..maxLength] + "...(truncated)";
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Indexing.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Indexing.cs
new file mode 100644
index 000000000..7ac4cedca
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.Indexing.cs
@@ -0,0 +1,49 @@
+using System.Net;
+using System.Text;
+
+namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+
+public sealed partial class ElasticsearchProjectionDocumentStore<TReadModel, TKey>
+{
+    private async Task EnsureIndexAsync(CancellationToken ct)
+    {
+        if (!_autoCreateIndex || _indexInitialized)
+            return;
+
+        await _indexInitializationLock.WaitAsync(ct);
+        try
+        {
+            if (_indexInitialized)
+                return;
+
+            var payload = ElasticsearchProjectionDocumentStorePayloadSupport.BuildIndexInitializationPayload(
+                _indexMetadata,
+                _jsonOptions);
+            using var request = new HttpRequestMessage(HttpMethod.Put, _indexName)
+            {
+                Content = new StringContent(payload, Encoding.UTF8, "application/json"),
+            };
+            using var response = await _httpClient.SendAsync(request, ct);
+            if (response.IsSuccessStatusCode)
+            {
+                _indexInitialized = true;
+                return;
+            }
+
+            var responsePayload = await response.Content.ReadAsStringAsync(ct);
+            if (response.StatusCode == HttpStatusCode.BadRequest &&
+                responsePayload.Contains("resource_already_exists_exception", StringComparison.OrdinalIgnoreCase))
+            {
+                _indexInitialized = true;
+                return;
+            }
+
+            throw new InvalidOperationException(
+                $"Elasticsearch index initialization failed for '{_indexName}': {(int)response.StatusCode} {response.ReasonPhrase}. body={responsePayload}");
+        }
+        finally
+        {
+            _indexInitializationLock.Release();
+        }
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs
index e966654dd..58e174f00 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStore.cs
@@ -14,8 +14,6 @@ public sealed partial class ElasticsearchProjectionDocumentStore<TReadModel, TKe
     where TReadModel : class, IProjectionReadModel
 {
     private const string ProviderName = "Elasticsearch";
-    private const string DefaultListPrimarySortField = "CreatedAt";
-    private const string DefaultListTiebreakSortField = "_id";
 
     private readonly HttpClient _httpClient;
     private readonly Func<TReadModel, TKey> _keySelector;
@@ -46,7 +44,7 @@ public ElasticsearchProjectionDocumentStore(
         ArgumentNullException.ThrowIfNull(options);
         ArgumentNullException.ThrowIfNull(keySelector);
 
-        var endpoint = ResolvePrimaryEndpoint(options.Endpoints);
+        var endpoint = ElasticsearchProjectionDocumentStoreNamingSupport.ResolvePrimaryEndpoint(options.Endpoints);
         _httpClient = httpMessageHandler == null
             ? new HttpClient()
             : new HttpClient(httpMessageHandler, disposeHandler: true);
@@ -60,11 +58,11 @@ public ElasticsearchProjectionDocumentStore(
             _httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", token);
         }
 
-        var normalizedMetadata = NormalizeMetadata(indexMetadata);
-        var normalizedScope = NormalizeToken(normalizedMetadata.IndexName);
+        var normalizedMetadata = ElasticsearchProjectionDocumentStoreMetadataSupport.NormalizeMetadata(indexMetadata);
+        var normalizedScope = ElasticsearchProjectionDocumentStoreNamingSupport.NormalizeToken(normalizedMetadata.IndexName);
         if (normalizedScope.Length == 0)
             normalizedScope = "readmodel";
-        _indexName = BuildIndexName(options.IndexPrefix, normalizedScope);
+        _indexName = ElasticsearchProjectionDocumentStoreNamingSupport.BuildIndexName(options.IndexPrefix, normalizedScope);
         _listTakeMax = options.ListTakeMax > 0 ? options.ListTakeMax : 200;
         _autoCreateIndex = options.AutoCreateIndex;
         _missingIndexBehavior = options.MissingIndexBehavior;
@@ -161,7 +159,7 @@ await UpsertCoreAsync(
             return null;
         }
 
-        await EnsureSuccessAsync(response, "get", ct);
+        await ElasticsearchProjectionDocumentStoreHttpSupport.EnsureSuccessAsync(response, "get", ct);
         var successfulPayload = await response.Content.ReadAsStringAsync(ct);
         using var jsonDoc = JsonDocument.Parse(successfulPayload);
         if (!jsonDoc.RootElement.TryGetProperty("_source", out var sourceNode))
@@ -178,7 +176,12 @@ public async Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, Cancellati
 
         using var request = new HttpRequestMessage(HttpMethod.Post, $"{_indexName}/_search")
         {
-            Content = new StringContent(BuildListPayloadJson(boundedTake), Encoding.UTF8, "application/json"),
+                Content = new StringContent(
+                    ElasticsearchProjectionDocumentStorePayloadSupport.BuildListPayloadJson(
+                        _listSortField,
+                        boundedTake),
+                    Encoding.UTF8,
+                    "application/json"),
         };
         using var response = await _httpClient.SendAsync(request, ct);
         if (response.StatusCode == HttpStatusCode.NotFound)
@@ -189,7 +192,7 @@ public async Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, Cancellati
             return [];
         }
 
-        await EnsureSuccessAsync(response, "list", ct);
+        await ElasticsearchProjectionDocumentStoreHttpSupport.EnsureSuccessAsync(response, "list", ct);
         var successfulPayload = await response.Content.ReadAsStringAsync(ct);
         using var jsonDoc = JsonDocument.Parse(successfulPayload);
         if (!jsonDoc.RootElement.TryGetProperty("hits", out var hitsNode) ||
@@ -219,12 +222,12 @@ public async Task<IReadOnlyList<TReadModel>> ListAsync(int take = 50, Cancellati
         if (response.StatusCode == HttpStatusCode.NotFound)
         {
             var payload = await response.Content.ReadAsStringAsync(ct);
-            if (IsIndexNotFoundPayload(payload))
+            if (ElasticsearchProjectionDocumentStoreHttpSupport.IsIndexNotFoundPayload(payload))
                 throw BuildMissingIndexException("mutate", payload);
             return null;
         }
 
-        await EnsureSuccessAsync(response, "mutate-get", ct);
+        await ElasticsearchProjectionDocumentStoreHttpSupport.EnsureSuccessAsync(response, "mutate-get", ct);
         var successfulPayload = await response.Content.ReadAsStringAsync(ct);
         using var jsonDoc = JsonDocument.Parse(successfulPayload);
         if (!jsonDoc.RootElement.TryGetProperty("_source", out var sourceNode))
@@ -273,10 +276,10 @@ private async Task UpsertCoreAsync(
             {
                 var conflictPayload = await response.Content.ReadAsStringAsync(ct);
                 throw new ElasticsearchOptimisticConcurrencyException(
-                    $"Elasticsearch optimistic concurrency conflict for index '{_indexName}' key '{keyValue}'. body={TruncatePayload(conflictPayload)}");
+                    $"Elasticsearch optimistic concurrency conflict for index '{_indexName}' key '{keyValue}'. body={ElasticsearchProjectionDocumentStoreNamingSupport.TruncatePayload(conflictPayload)}");
             }
 
-            await EnsureSuccessAsync(response, "upsert", ct);
+            await ElasticsearchProjectionDocumentStoreHttpSupport.EnsureSuccessAsync(response, "upsert", ct);
 
             var elapsedMs = (DateTimeOffset.UtcNow - startedAt).TotalMilliseconds;
             _logger.LogInformation(
@@ -309,7 +312,7 @@ private string BuildDocumentRequestPath(string keyValue, long? ifSeqNo, long? if
 
     private bool TryHandleMissingIndexForRead(string operation, string payload)
     {
-        if (!IsIndexNotFoundPayload(payload))
+        if (!ElasticsearchProjectionDocumentStoreHttpSupport.IsIndexNotFoundPayload(payload))
             return false;
 
         if (_autoCreateIndex || _missingIndexBehavior == ElasticsearchMissingIndexBehavior.Throw)
@@ -330,12 +333,7 @@ private InvalidOperationException BuildMissingIndexException(string operation, s
         return new InvalidOperationException(
             $"Elasticsearch index '{_indexName}' was not found during '{operation}' for read-model '{typeof(TReadModel).FullName}'. " +
             $"Configure index bootstrap or set '{nameof(ElasticsearchProjectionDocumentStoreOptions.AutoCreateIndex)}=true'. " +
-            $"body={TruncatePayload(payload)}");
-    }
-
-    private static bool IsIndexNotFoundPayload(string payload)
-    {
-        return payload.Contains("index_not_found_exception", StringComparison.OrdinalIgnoreCase);
+            $"body={ElasticsearchProjectionDocumentStoreNamingSupport.TruncatePayload(payload)}");
     }
 
     private void LogWriteFailure(
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreHttpSupport.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreHttpSupport.cs
new file mode 100644
index 000000000..8700ac96b
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreHttpSupport.cs
@@ -0,0 +1,22 @@
+namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+
+internal static class ElasticsearchProjectionDocumentStoreHttpSupport
+{
+    internal static async Task EnsureSuccessAsync(
+        HttpResponseMessage response,
+        string operation,
+        CancellationToken ct)
+    {
+        if (response.IsSuccessStatusCode)
+            return;
+
+        var payload = await response.Content.ReadAsStringAsync(ct);
+        throw new InvalidOperationException(
+            $"Elasticsearch {operation} failed: {(int)response.StatusCode} {response.ReasonPhrase}. body={payload}");
+    }
+
+    internal static bool IsIndexNotFoundPayload(string payload)
+    {
+        return payload.Contains("index_not_found_exception", StringComparison.OrdinalIgnoreCase);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreMetadataSupport.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreMetadataSupport.cs
new file mode 100644
index 000000000..da4359a2a
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreMetadataSupport.cs
@@ -0,0 +1,137 @@
+using System.Text.Json;
+
+namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+
+internal static class ElasticsearchProjectionDocumentStoreMetadataSupport
+{
+    internal static DocumentIndexMetadata NormalizeMetadata(DocumentIndexMetadata metadata)
+    {
+        ArgumentNullException.ThrowIfNull(metadata);
+        var normalizedMappings = NormalizeObjectMap(metadata.Mappings, "DocumentIndexMetadata.Mappings");
+        var normalizedSettings = NormalizeObjectMap(metadata.Settings, "DocumentIndexMetadata.Settings");
+        var normalizedAliases = NormalizeObjectMap(metadata.Aliases, "DocumentIndexMetadata.Aliases");
+        return new DocumentIndexMetadata(
+            metadata.IndexName?.Trim() ?? "",
+            normalizedMappings,
+            normalizedSettings,
+            normalizedAliases);
+    }
+
+    internal static Dictionary<string, object?> NormalizeObjectMap(
+        IReadOnlyDictionary<string, object?> source,
+        string context)
+    {
+        ArgumentNullException.ThrowIfNull(source);
+        var normalized = new Dictionary<string, object?>(StringComparer.Ordinal);
+        foreach (var pair in source)
+        {
+            var key = pair.Key?.Trim() ?? "";
+            if (key.Length == 0)
+                throw new InvalidOperationException($"{context} contains an empty key.");
+
+            normalized[key] = NormalizeObjectValue(pair.Value, $"{context}['{key}']");
+        }
+
+        return normalized;
+    }
+
+    private static object? NormalizeObjectValue(object? value, string context)
+    {
+        if (value == null)
+            return null;
+
+        if (value is string ||
+            value is bool ||
+            value is byte ||
+            value is sbyte ||
+            value is short ||
+            value is ushort ||
+            value is int ||
+            value is uint ||
+            value is long ||
+            value is ulong ||
+            value is float ||
+            value is double ||
+            value is decimal)
+        {
+            return value;
+        }
+
+        if (value is JsonElement jsonElement)
+            return NormalizeJsonElement(jsonElement, context);
+
+        if (value is IReadOnlyDictionary<string, object?> readonlyObjectMap)
+            return NormalizeObjectMap(readonlyObjectMap, context);
+
+        if (value is IDictionary<string, object?> mutableObjectMap)
+        {
+            return NormalizeObjectMap(
+                new Dictionary<string, object?>(mutableObjectMap, StringComparer.Ordinal),
+                context);
+        }
+
+        if (value is IReadOnlyDictionary<string, string> readonlyStringMap)
+        {
+            var converted = readonlyStringMap.ToDictionary(
+                x => x.Key,
+                x => (object?)x.Value,
+                StringComparer.Ordinal);
+            return NormalizeObjectMap(converted, context);
+        }
+
+        if (value is IDictionary<string, string> mutableStringMap)
+        {
+            var converted = mutableStringMap.ToDictionary(
+                x => x.Key,
+                x => (object?)x.Value,
+                StringComparer.Ordinal);
+            return NormalizeObjectMap(converted, context);
+        }
+
+        if (value is IEnumerable<object?> objectSequence)
+            return objectSequence.Select((x, i) => NormalizeObjectValue(x, $"{context}[{i}]")).ToList();
+
+        if (value is IEnumerable<string> stringSequence)
+            return stringSequence.Cast<object?>().ToList();
+
+        throw new InvalidOperationException(
+            $"{context} contains unsupported value type '{value.GetType().FullName}'.");
+    }
+
+    private static object? NormalizeJsonElement(JsonElement element, string context)
+    {
+        return element.ValueKind switch
+        {
+            JsonValueKind.Object => element
+                .EnumerateObject()
+                .ToDictionary(
+                    x => x.Name,
+                    x => NormalizeJsonElement(x.Value, $"{context}['{x.Name}']"),
+                    StringComparer.Ordinal),
+            JsonValueKind.Array => element
+                .EnumerateArray()
+                .Select((x, i) => NormalizeJsonElement(x, $"{context}[{i}]"))
+                .ToList(),
+            JsonValueKind.String => element.GetString(),
+            JsonValueKind.Number => NormalizeJsonNumber(element, context),
+            JsonValueKind.True => true,
+            JsonValueKind.False => false,
+            JsonValueKind.Null => null,
+            JsonValueKind.Undefined => null,
+            _ => throw new InvalidOperationException(
+                $"{context} contains unsupported json value kind '{element.ValueKind}'."),
+        };
+    }
+
+    private static object NormalizeJsonNumber(JsonElement numberElement, string context)
+    {
+        if (numberElement.TryGetInt64(out var int64Value))
+            return int64Value;
+        if (numberElement.TryGetDecimal(out var decimalValue))
+            return decimalValue;
+        if (numberElement.TryGetDouble(out var doubleValue))
+            return doubleValue;
+
+        throw new InvalidOperationException($"{context} contains an invalid JSON number value.");
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreNamingSupport.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreNamingSupport.cs
new file mode 100644
index 000000000..773a479ea
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStoreNamingSupport.cs
@@ -0,0 +1,51 @@
+namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+
+internal static class ElasticsearchProjectionDocumentStoreNamingSupport
+{
+    internal static Uri ResolvePrimaryEndpoint(IReadOnlyList<string>? endpoints)
+    {
+        if (endpoints == null || endpoints.Count == 0)
+            throw new InvalidOperationException("Elasticsearch provider requires at least one endpoint.");
+
+        var endpoint = endpoints[0].Trim();
+        if (endpoint.Length == 0)
+            throw new InvalidOperationException("Elasticsearch endpoint cannot be empty.");
+        if (!endpoint.Contains("://", StringComparison.Ordinal))
+            endpoint = "http://" + endpoint;
+
+        if (!Uri.TryCreate(endpoint, UriKind.Absolute, out var uri))
+            throw new InvalidOperationException($"Invalid Elasticsearch endpoint '{endpoints[0]}'.");
+
+        return uri;
+    }
+
+    internal static string BuildIndexName(string indexPrefix, string indexScope)
+    {
+        var prefix = NormalizeToken(indexPrefix);
+        if (prefix.Length == 0)
+            prefix = "aevatar";
+        return $"{prefix}-{indexScope}";
+    }
+
+    internal static string NormalizeToken(string? token)
+    {
+        if (string.IsNullOrWhiteSpace(token))
+            return "";
+
+        var chars = token
+            .Trim()
+            .ToLowerInvariant()
+            .Select(ch => char.IsLetterOrDigit(ch) ? ch : '-')
+            .ToArray();
+        return new string(chars).Trim('-');
+    }
+
+    internal static string TruncatePayload(string payload)
+    {
+        const int maxLength = 512;
+        if (payload.Length <= maxLength)
+            return payload;
+
+        return payload[..maxLength] + "...(truncated)";
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStorePayloadSupport.cs b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStorePayloadSupport.cs
new file mode 100644
index 000000000..c9b2f4589
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Elasticsearch/Stores/ElasticsearchProjectionDocumentStorePayloadSupport.cs
@@ -0,0 +1,103 @@
+using System.Text.Json;
+
+namespace Aevatar.CQRS.Projection.Providers.Elasticsearch.Stores;
+
+internal static class ElasticsearchProjectionDocumentStorePayloadSupport
+{
+    private const string DefaultListPrimarySortField = "CreatedAt";
+    private const string DefaultListTiebreakSortField = "_id";
+
+    internal static string BuildListPayloadJson(string listSortField, int size)
+    {
+        var sort = string.IsNullOrWhiteSpace(listSortField)
+            ? BuildDefaultSortSpec()
+            : BuildConfiguredSortSpec(listSortField.Trim());
+
+        return JsonSerializer.Serialize(new
+        {
+            size,
+            sort,
+            query = new
+            {
+                match_all = new { },
+            },
+        });
+    }
+
+    internal static string BuildIndexInitializationPayload(
+        DocumentIndexMetadata indexMetadata,
+        JsonSerializerOptions jsonOptions)
+    {
+        var mappings = indexMetadata.Mappings.Count == 0
+            ? new Dictionary<string, object?>(StringComparer.Ordinal)
+            {
+                ["dynamic"] = true,
+            }
+            : new Dictionary<string, object?>(indexMetadata.Mappings, StringComparer.Ordinal);
+
+        var root = new Dictionary<string, object?>
+        {
+            ["mappings"] = mappings,
+        };
+
+        if (indexMetadata.Settings.Count > 0)
+        {
+            root["settings"] = new Dictionary<string, object?>(
+                indexMetadata.Settings,
+                StringComparer.Ordinal);
+        }
+
+        if (indexMetadata.Aliases.Count > 0)
+        {
+            root["aliases"] = new Dictionary<string, object?>(
+                indexMetadata.Aliases,
+                StringComparer.Ordinal);
+        }
+
+        return JsonSerializer.Serialize(root, jsonOptions);
+    }
+
+    private static object[] BuildConfiguredSortSpec(string sortField)
+    {
+        return
+        [
+            new Dictionary<string, object>
+            {
+                [sortField] = new Dictionary<string, object>
+                {
+                    ["order"] = "desc",
+                },
+            },
+            new Dictionary<string, object>
+            {
+                [DefaultListTiebreakSortField] = new Dictionary<string, object>
+                {
+                    ["order"] = "desc",
+                },
+            },
+        ];
+    }
+
+    private static object[] BuildDefaultSortSpec()
+    {
+        return
+        [
+            new Dictionary<string, object>
+            {
+                [DefaultListPrimarySortField] = new Dictionary<string, object>
+                {
+                    ["order"] = "desc",
+                    ["missing"] = "_last",
+                    ["unmapped_type"] = "date",
+                },
+            },
+            new Dictionary<string, object>
+            {
+                [DefaultListTiebreakSortField] = new Dictionary<string, object>
+                {
+                    ["order"] = "desc",
+                },
+            },
+        ];
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
index 4694ca1b3..29088229c 100644
--- a/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.InMemory/DependencyInjection/ServiceCollectionExtensions.cs
@@ -4,7 +4,7 @@
 
 namespace Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 
-public static class ServiceCollectionExtensions
+public static class InMemoryProjectionServiceCollectionExtensions
 {
     public static IServiceCollection AddInMemoryDocumentProjectionStore<TReadModel, TKey>(
         this IServiceCollection services,
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
index 22432bcfc..c0a873f2b 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/DependencyInjection/ServiceCollectionExtensions.cs
@@ -5,7 +5,7 @@
 
 namespace Aevatar.CQRS.Projection.Providers.Neo4j.DependencyInjection;
 
-public static class ServiceCollectionExtensions
+public static class Neo4jProjectionServiceCollectionExtensions
 {
     public static IServiceCollection AddNeo4jGraphProjectionStore(
         this IServiceCollection services,
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Helpers.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Helpers.cs
deleted file mode 100644
index d5ca9eced..000000000
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Helpers.cs
+++ /dev/null
@@ -1,318 +0,0 @@
-using System.Text.Json;
-using Microsoft.Extensions.Logging;
-using Neo4j.Driver;
-
-namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
-
-public sealed partial class Neo4jProjectionGraphStore
-{
-    private async Task<List<ProjectionGraphNode>> GetNodesByIdsAsync(
-        string scope,
-        IReadOnlySet<string> nodeIds,
-        CancellationToken ct)
-    {
-        if (nodeIds.Count == 0)
-            return [];
-
-        await EnsureSchemaAsync(ct);
-        var cypher = $"MATCH (n:{_nodeLabel} {{scope: $scope}}) " +
-                     "WHERE n.nodeId IN $nodeIds " +
-                     "RETURN n.nodeId AS nodeId, " +
-                     "coalesce(n.nodeType, '') AS nodeType, " +
-                     "coalesce(n.propertiesJson, '{}') AS propertiesJson, " +
-                     "coalesce(n.updatedAtEpochMs, 0) AS updatedAtEpochMs";
-        var parameters = new Dictionary<string, object?>
-        {
-            ["scope"] = scope,
-            ["nodeIds"] = nodeIds.ToArray(),
-        };
-
-        var rows = await ExecuteReadAsync(cypher, parameters, ct);
-        var nodes = new List<ProjectionGraphNode>(rows.Count);
-        foreach (var row in rows)
-        {
-            if (!row.TryGetValue("nodeId", out var nodeIdValue))
-                continue;
-            var nodeId = NormalizeToken(nodeIdValue.As<string>());
-            if (nodeId.Length == 0)
-                continue;
-
-            var nodeType = row.TryGetValue("nodeType", out var nodeTypeValue)
-                ? NormalizeToken(nodeTypeValue.As<string>())
-                : "Unknown";
-            if (nodeType.Length == 0)
-                nodeType = "Unknown";
-
-            var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
-                ? propertiesJsonValue.As<string>()
-                : "{}";
-            var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
-                ? updatedAtEpochMsValue.As<long>()
-                : 0L;
-
-            nodes.Add(new ProjectionGraphNode
-            {
-                Scope = scope,
-                NodeId = nodeId,
-                NodeType = nodeType,
-                Properties = DeserializeProperties(propertiesJson),
-                UpdatedAt = FromUnixTimeMilliseconds(updatedAtEpochMs),
-            });
-        }
-
-        return nodes;
-    }
-
-    private ProjectionGraphEdge? BuildEdgeFromRow(string scope, IReadOnlyDictionary<string, object> row)
-    {
-        if (!row.TryGetValue("edgeId", out var edgeIdValue))
-            return null;
-        if (!row.TryGetValue("fromNodeId", out var fromNodeIdValue))
-            return null;
-        if (!row.TryGetValue("toNodeId", out var toNodeIdValue))
-            return null;
-
-        var edgeId = NormalizeToken(edgeIdValue.As<string>());
-        var fromNodeId = NormalizeToken(fromNodeIdValue.As<string>());
-        var toNodeId = NormalizeToken(toNodeIdValue.As<string>());
-        if (edgeId.Length == 0 || fromNodeId.Length == 0 || toNodeId.Length == 0)
-            return null;
-
-        var relationType = row.TryGetValue("relationType", out var relationTypeValue)
-            ? NormalizeToken(relationTypeValue.As<string>())
-            : "Unknown";
-        if (relationType.Length == 0)
-            relationType = "Unknown";
-        var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
-            ? propertiesJsonValue.As<string>()
-            : "{}";
-        var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
-            ? updatedAtEpochMsValue.As<long>()
-            : 0L;
-
-        return new ProjectionGraphEdge
-        {
-            Scope = scope,
-            EdgeId = edgeId,
-            FromNodeId = fromNodeId,
-            ToNodeId = toNodeId,
-            EdgeType = relationType,
-            Properties = DeserializeProperties(propertiesJson),
-            UpdatedAt = FromUnixTimeMilliseconds(updatedAtEpochMs),
-        };
-    }
-
-    private string BuildNeighborCypher(ProjectionGraphDirection direction, int take)
-    {
-        var filter = "WHERE size($edgeTypes) = 0 OR r.relationType IN $edgeTypes ";
-        var projection = "RETURN r.edgeId AS edgeId, " +
-                         "startNode(r).nodeId AS fromNodeId, " +
-                         "endNode(r).nodeId AS toNodeId, " +
-                         "coalesce(r.relationType, '') AS relationType, " +
-                         "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
-                         "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
-                         "ORDER BY updatedAtEpochMs DESC LIMIT $take";
-        return direction switch
-        {
-            ProjectionGraphDirection.Outbound =>
-                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})-[r:{_edgeType}]->(:{_nodeLabel} {{scope: $scope}}) " +
-                filter +
-                projection,
-            ProjectionGraphDirection.Inbound =>
-                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})<-[r:{_edgeType}]-(:{_nodeLabel} {{scope: $scope}}) " +
-                filter +
-                projection,
-            _ =>
-                $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})-[r:{_edgeType}]-(:{_nodeLabel} {{scope: $scope}}) " +
-                filter +
-                projection,
-        };
-    }
-
-    private string BuildSubgraphEdgesCypher(ProjectionGraphDirection direction, int depth)
-    {
-        var boundedDepth = Math.Clamp(depth, 1, _maxTraversalDepth);
-        var pathPattern = direction switch
-        {
-            ProjectionGraphDirection.Outbound =>
-                $"(root)-[:{_edgeType}*1..{boundedDepth}]->()",
-            ProjectionGraphDirection.Inbound =>
-                $"(root)<-[:{_edgeType}*1..{boundedDepth}]-()",
-            _ =>
-                $"(root)-[:{_edgeType}*1..{boundedDepth}]-()",
-        };
-        return $"MATCH (root:{_nodeLabel} {{scope: $scope, nodeId: $rootNodeId}}) " +
-               $"OPTIONAL MATCH p={pathPattern} " +
-               "WHERE p IS NULL OR (" +
-               "all(n IN nodes(p) WHERE coalesce(n.scope, '') = $scope) " +
-               "AND (size($edgeTypes) = 0 OR all(rel IN relationships(p) WHERE rel.relationType IN $edgeTypes))) " +
-               "UNWIND CASE WHEN p IS NULL THEN [] ELSE relationships(p) END AS r " +
-               "WITH DISTINCT r " +
-               "RETURN r.edgeId AS edgeId, " +
-               "startNode(r).nodeId AS fromNodeId, " +
-               "endNode(r).nodeId AS toNodeId, " +
-               "coalesce(r.relationType, '') AS relationType, " +
-               "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
-               "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
-               "ORDER BY updatedAtEpochMs DESC LIMIT $take";
-    }
-
-    private async Task EnsureSchemaAsync(CancellationToken ct)
-    {
-        if (!_autoCreateConstraints || _schemaInitialized)
-            return;
-
-        await _schemaLock.WaitAsync(ct);
-        try
-        {
-            if (_schemaInitialized)
-                return;
-
-            var nodeConstraintName = NormalizeConstraintName($"projection_graph_node_scope_id_{_nodeLabel}");
-            var cypher = $"CREATE CONSTRAINT {nodeConstraintName} IF NOT EXISTS " +
-                         $"FOR (n:{_nodeLabel}) REQUIRE (n.scope, n.nodeId) IS UNIQUE";
-            await ExecuteWriteAsync(cypher, new Dictionary<string, object?>(), ct);
-            _schemaInitialized = true;
-        }
-        finally
-        {
-            _schemaLock.Release();
-        }
-    }
-
-    private async Task ExecuteWriteAsync(
-        string cypher,
-        IReadOnlyDictionary<string, object?> parameters,
-        CancellationToken ct)
-    {
-        await using var session = CreateSession(AccessMode.Write);
-        var cursor = await session.RunAsync(cypher, parameters);
-        await cursor.ConsumeAsync();
-        ct.ThrowIfCancellationRequested();
-    }
-
-    private async Task<IReadOnlyList<IReadOnlyDictionary<string, object>>> ExecuteReadAsync(
-        string cypher,
-        IReadOnlyDictionary<string, object?> parameters,
-        CancellationToken ct)
-    {
-        await using var session = CreateSession(AccessMode.Read);
-        var cursor = await session.RunAsync(cypher, parameters);
-        var rows = await cursor.ToListAsync(record =>
-            (IReadOnlyDictionary<string, object>)record.Values.ToDictionary(x => x.Key, x => x.Value, StringComparer.Ordinal));
-        ct.ThrowIfCancellationRequested();
-        return rows;
-    }
-
-    private IAsyncSession CreateSession(AccessMode accessMode)
-    {
-        return _driver.AsyncSession(options =>
-        {
-            options.WithDefaultAccessMode(accessMode);
-            if (_database.Length > 0)
-                options.WithDatabase(_database);
-        });
-    }
-
-    private static string[] NormalizeEdgeTypes(IReadOnlyList<string> edgeTypes)
-    {
-        return edgeTypes
-            .Select(NormalizeToken)
-            .Where(x => x.Length > 0)
-            .Distinct(StringComparer.Ordinal)
-            .ToArray();
-    }
-
-    private static bool ResolveProjectionManaged(IReadOnlyDictionary<string, string> properties)
-    {
-        if (!properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedMarkerKey, out var markerValue))
-            return false;
-
-        var normalizedMarker = NormalizeToken(markerValue);
-        return string.Equals(
-            normalizedMarker,
-            ProjectionGraphManagedPropertyKeys.ManagedMarkerValue,
-            StringComparison.Ordinal);
-    }
-
-    private static string ResolveProjectionOwnerId(IReadOnlyDictionary<string, string> properties)
-    {
-        if (!properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var ownerId))
-            return "";
-
-        return NormalizeToken(ownerId);
-    }
-
-    private string SerializeProperties(IReadOnlyDictionary<string, string> properties)
-    {
-        if (properties.Count == 0)
-            return "{}";
-        return JsonSerializer.Serialize(properties, _jsonOptions);
-    }
-
-    private Dictionary<string, string> DeserializeProperties(string payload)
-    {
-        if (string.IsNullOrWhiteSpace(payload))
-            return new Dictionary<string, string>(StringComparer.Ordinal);
-        try
-        {
-            var parsed = JsonSerializer.Deserialize<Dictionary<string, string>>(payload, _jsonOptions);
-            return parsed == null
-                ? new Dictionary<string, string>(StringComparer.Ordinal)
-                : new Dictionary<string, string>(parsed, StringComparer.Ordinal);
-        }
-        catch (Exception ex)
-        {
-            _logger.LogWarning(
-                ex,
-                "Failed to deserialize graph properties payload. provider={Provider}",
-                ProviderName);
-            return new Dictionary<string, string>(StringComparer.Ordinal);
-        }
-    }
-
-    private static long NormalizeTimestamp(DateTimeOffset timestamp)
-    {
-        if (timestamp == default)
-            return DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
-        return timestamp.ToUnixTimeMilliseconds();
-    }
-
-    private static DateTimeOffset FromUnixTimeMilliseconds(long value)
-    {
-        var safeValue = Math.Max(0, value);
-        return DateTimeOffset.FromUnixTimeMilliseconds(safeValue);
-    }
-
-    private static string NormalizeToken(string token) => token?.Trim() ?? "";
-
-    private static string NormalizeLabel(string rawLabel, string fallback)
-    {
-        var label = (rawLabel ?? "").Trim();
-        if (label.Length == 0)
-            label = fallback;
-
-        var chars = label
-            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? ch : '_')
-            .ToArray();
-        var normalized = new string(chars);
-        if (normalized.Length == 0)
-            normalized = fallback;
-        if (char.IsDigit(normalized[0]))
-            normalized = $"N_{normalized}";
-        return normalized;
-    }
-
-    private static string NormalizeConstraintName(string rawName)
-    {
-        var chars = rawName
-            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? char.ToLowerInvariant(ch) : '_')
-            .ToArray();
-        var normalized = new string(chars);
-        if (normalized.Length == 0)
-            return "projection_graph_constraint";
-        if (char.IsDigit(normalized[0]))
-            normalized = $"c_{normalized}";
-        return normalized;
-    }
-}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Infrastructure.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Infrastructure.cs
new file mode 100644
index 000000000..b07346f1b
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.Infrastructure.cs
@@ -0,0 +1,106 @@
+using Neo4j.Driver;
+
+namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
+
+public sealed partial class Neo4jProjectionGraphStore
+{
+    private async Task<List<ProjectionGraphNode>> GetNodesByIdsAsync(
+        string scope,
+        IReadOnlySet<string> nodeIds,
+        CancellationToken ct)
+    {
+        if (nodeIds.Count == 0)
+            return [];
+
+        await EnsureSchemaAsync(ct);
+        var cypher = Neo4jProjectionGraphStoreCypherSupport.BuildGetNodesByIdsCypher(_nodeLabel);
+        var parameters = new Dictionary<string, object?>
+        {
+            ["scope"] = scope,
+            ["nodeIds"] = nodeIds.ToArray(),
+        };
+
+        var rows = await ExecuteReadAsync(cypher, parameters, ct);
+        var nodes = new List<ProjectionGraphNode>(rows.Count);
+        foreach (var row in rows)
+        {
+            var node = Neo4jProjectionGraphStoreRowMapper.MapNode(scope, row, DeserializeProperties);
+            if (node != null)
+                nodes.Add(node);
+        }
+
+        return nodes;
+    }
+
+    private async Task EnsureSchemaAsync(CancellationToken ct)
+    {
+        if (!_autoCreateConstraints || _schemaInitialized)
+            return;
+
+        await _schemaLock.WaitAsync(ct);
+        try
+        {
+            if (_schemaInitialized)
+                return;
+
+            var nodeConstraintName = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeConstraintName(
+                $"projection_graph_node_scope_id_{_nodeLabel}");
+            var cypher = Neo4jProjectionGraphStoreCypherSupport.BuildCreateNodeConstraintCypher(
+                _nodeLabel,
+                nodeConstraintName);
+            await ExecuteWriteAsync(cypher, new Dictionary<string, object?>(), ct);
+            _schemaInitialized = true;
+        }
+        finally
+        {
+            _schemaLock.Release();
+        }
+    }
+
+    private async Task ExecuteWriteAsync(
+        string cypher,
+        IReadOnlyDictionary<string, object?> parameters,
+        CancellationToken ct)
+    {
+        await using var session = CreateSession(AccessMode.Write);
+        var cursor = await session.RunAsync(cypher, parameters);
+        await cursor.ConsumeAsync();
+        ct.ThrowIfCancellationRequested();
+    }
+
+    private async Task<IReadOnlyList<IReadOnlyDictionary<string, object>>> ExecuteReadAsync(
+        string cypher,
+        IReadOnlyDictionary<string, object?> parameters,
+        CancellationToken ct)
+    {
+        await using var session = CreateSession(AccessMode.Read);
+        var cursor = await session.RunAsync(cypher, parameters);
+        var rows = await cursor.ToListAsync(record =>
+            (IReadOnlyDictionary<string, object>)record.Values.ToDictionary(
+                x => x.Key,
+                x => x.Value,
+                StringComparer.Ordinal));
+        ct.ThrowIfCancellationRequested();
+        return rows;
+    }
+
+    private IAsyncSession CreateSession(AccessMode accessMode)
+    {
+        return _driver.AsyncSession(options =>
+        {
+            options.WithDefaultAccessMode(accessMode);
+            if (_database.Length > 0)
+                options.WithDatabase(_database);
+        });
+    }
+
+    private string SerializeProperties(IReadOnlyDictionary<string, string> properties)
+    {
+        return Neo4jProjectionGraphStorePropertyCodec.SerializeProperties(properties, _jsonOptions);
+    }
+
+    private Dictionary<string, string> DeserializeProperties(string payload)
+    {
+        return Neo4jProjectionGraphStorePropertyCodec.DeserializeProperties(payload, _jsonOptions, _logger, ProviderName);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
index 833f13e80..c4fd4b103 100644
--- a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStore.cs
@@ -31,8 +31,12 @@ public Neo4jProjectionGraphStore(
     {
         ArgumentNullException.ThrowIfNull(options);
         _database = options.Database?.Trim() ?? "";
-        _nodeLabel = NormalizeLabel(options.NodeLabel, "ProjectionGraphNode");
-        _edgeType = NormalizeLabel(options.EdgeType, "PROJECTION_REL");
+        _nodeLabel = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeLabel(
+            options.NodeLabel,
+            "ProjectionGraphNode");
+        _edgeType = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeLabel(
+            options.EdgeType,
+            "PROJECTION_REL");
         _autoCreateConstraints = options.AutoCreateConstraints;
         _maxTraversalDepth = Math.Clamp(options.MaxTraversalDepth, 1, 8);
         _logger = logger ?? NullLogger<Neo4jProjectionGraphStore>.Instance;
@@ -49,24 +53,19 @@ public async Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct
         ArgumentNullException.ThrowIfNull(node);
         ct.ThrowIfCancellationRequested();
 
-        var scope = NormalizeToken(node.Scope);
-        var nodeId = NormalizeToken(node.NodeId);
+        var scope = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(node.Scope);
+        var nodeId = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(node.NodeId);
         if (scope.Length == 0 || nodeId.Length == 0)
             throw new InvalidOperationException("Graph node requires non-empty scope and nodeId.");
 
-        var nodeType = NormalizeToken(node.NodeType);
+        var nodeType = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(node.NodeType);
         if (nodeType.Length == 0)
             nodeType = "Unknown";
-        var updatedAtEpochMs = NormalizeTimestamp(node.UpdatedAt);
+        var updatedAtEpochMs = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeTimestamp(node.UpdatedAt);
         var propertiesJson = SerializeProperties(node.Properties);
-        var projectionManaged = ResolveProjectionManaged(node.Properties);
-        var projectionOwnerId = ResolveProjectionOwnerId(node.Properties);
-        var cypher = $"MERGE (n:{_nodeLabel} {{scope: $scope, nodeId: $nodeId}}) " +
-                     "SET n.nodeType = $nodeType, " +
-                     "n.propertiesJson = $propertiesJson, " +
-                     "n.updatedAtEpochMs = $updatedAtEpochMs, " +
-                     "n.projectionManaged = $projectionManaged, " +
-                     "n.projectionOwnerId = CASE WHEN $projectionOwnerId = '' THEN null ELSE $projectionOwnerId END";
+        var projectionManaged = Neo4jProjectionGraphStoreNormalizationSupport.ResolveProjectionManaged(node.Properties);
+        var projectionOwnerId = Neo4jProjectionGraphStoreNormalizationSupport.ResolveProjectionOwnerId(node.Properties);
+        var cypher = Neo4jProjectionGraphStoreCypherSupport.BuildUpsertNodeCypher(_nodeLabel);
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scope,
@@ -87,30 +86,21 @@ public async Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct
         ArgumentNullException.ThrowIfNull(edge);
         ct.ThrowIfCancellationRequested();
 
-        var scope = NormalizeToken(edge.Scope);
-        var edgeId = NormalizeToken(edge.EdgeId);
-        var fromNodeId = NormalizeToken(edge.FromNodeId);
-        var toNodeId = NormalizeToken(edge.ToNodeId);
-        var relationType = NormalizeToken(edge.EdgeType);
+        var scope = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(edge.Scope);
+        var edgeId = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(edge.EdgeId);
+        var fromNodeId = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(edge.FromNodeId);
+        var toNodeId = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(edge.ToNodeId);
+        var relationType = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(edge.EdgeType);
         if (scope.Length == 0 || edgeId.Length == 0 || fromNodeId.Length == 0 || toNodeId.Length == 0 || relationType.Length == 0)
         {
             throw new InvalidOperationException("Graph edge requires non-empty scope/edgeId/fromNodeId/toNodeId/relationType.");
         }
 
-        var updatedAtEpochMs = NormalizeTimestamp(edge.UpdatedAt);
+        var updatedAtEpochMs = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeTimestamp(edge.UpdatedAt);
         var propertiesJson = SerializeProperties(edge.Properties);
-        var projectionManaged = ResolveProjectionManaged(edge.Properties);
-        var projectionOwnerId = ResolveProjectionOwnerId(edge.Properties);
-        var cypher = $"MERGE (from:{_nodeLabel} {{scope: $scope, nodeId: $fromNodeId}}) " +
-                     "ON CREATE SET from.nodeType = 'Unknown', from.propertiesJson = '{}', from.updatedAtEpochMs = $updatedAtEpochMs " +
-                     $"MERGE (to:{_nodeLabel} {{scope: $scope, nodeId: $toNodeId}}) " +
-                     "ON CREATE SET to.nodeType = 'Unknown', to.propertiesJson = '{}', to.updatedAtEpochMs = $updatedAtEpochMs " +
-                     $"MERGE (from)-[r:{_edgeType} {{scope: $scope, edgeId: $edgeId}}]->(to) " +
-                     "SET r.relationType = $relationType, " +
-                     "r.propertiesJson = $propertiesJson, " +
-                     "r.updatedAtEpochMs = $updatedAtEpochMs, " +
-                     "r.projectionManaged = $projectionManaged, " +
-                     "r.projectionOwnerId = CASE WHEN $projectionOwnerId = '' THEN null ELSE $projectionOwnerId END";
+        var projectionManaged = Neo4jProjectionGraphStoreNormalizationSupport.ResolveProjectionManaged(edge.Properties);
+        var projectionOwnerId = Neo4jProjectionGraphStoreNormalizationSupport.ResolveProjectionOwnerId(edge.Properties);
+        var cypher = Neo4jProjectionGraphStoreCypherSupport.BuildUpsertEdgeCypher(_nodeLabel, _edgeType);
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scope,
@@ -131,14 +121,13 @@ public async Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct
     public async Task DeleteNodeAsync(string scope, string nodeId, CancellationToken ct = default)
     {
         ct.ThrowIfCancellationRequested();
-        var scopeValue = NormalizeToken(scope);
-        var nodeIdValue = NormalizeToken(nodeId);
+        var scopeValue = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(scope);
+        var nodeIdValue = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(nodeId);
         if (scopeValue.Length == 0 || nodeIdValue.Length == 0)
             return;
 
         await EnsureSchemaAsync(ct);
-        var cypher = $"MATCH (n:{_nodeLabel} {{scope: $scope, nodeId: $nodeId}}) " +
-                     "WHERE NOT (n)-[]-() DELETE n";
+        var cypher = Neo4jProjectionGraphStoreCypherSupport.BuildDeleteNodeCypher(_nodeLabel);
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scopeValue,
@@ -150,13 +139,13 @@ public async Task DeleteNodeAsync(string scope, string nodeId, CancellationToken
     public async Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
     {
         ct.ThrowIfCancellationRequested();
-        var scopeValue = NormalizeToken(scope);
-        var edgeIdValue = NormalizeToken(edgeId);
+        var scopeValue = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(scope);
+        var edgeIdValue = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(edgeId);
         if (scopeValue.Length == 0 || edgeIdValue.Length == 0)
             return;
 
         await EnsureSchemaAsync(ct);
-        var cypher = $"MATCH ()-[r:{_edgeType} {{scope: $scope, edgeId: $edgeId}}]->() DELETE r";
+        var cypher = Neo4jProjectionGraphStoreCypherSupport.BuildDeleteEdgeCypher(_edgeType);
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scopeValue,
@@ -173,22 +162,15 @@ public async Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
         CancellationToken ct = default)
     {
         ct.ThrowIfCancellationRequested();
-        var scopeValue = NormalizeToken(scope);
-        var ownerValue = NormalizeToken(ownerId);
+        var scopeValue = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(scope);
+        var ownerValue = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(ownerId);
         if (scopeValue.Length == 0 || ownerValue.Length == 0)
             return [];
 
         await EnsureSchemaAsync(ct);
         var boundedTake = Math.Clamp(take, 1, 50000);
         var boundedSkip = Math.Max(0, skip);
-        var cypher = $"MATCH (n:{_nodeLabel} {{scope: $scope}}) " +
-                     "WHERE coalesce(n.projectionManaged, false) = true " +
-                     "AND n.projectionOwnerId = $ownerId " +
-                     "RETURN n.nodeId AS nodeId, " +
-                     "coalesce(n.nodeType, '') AS nodeType, " +
-                     "coalesce(n.propertiesJson, '{}') AS propertiesJson, " +
-                     "coalesce(n.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
-                     "ORDER BY updatedAtEpochMs DESC SKIP $skip LIMIT $take";
+        var cypher = Neo4jProjectionGraphStoreCypherSupport.BuildListNodesByOwnerCypher(_nodeLabel);
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scopeValue,
@@ -201,34 +183,9 @@ public async Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
         var nodes = new List<ProjectionGraphNode>(rows.Count);
         foreach (var row in rows)
         {
-            if (!row.TryGetValue("nodeId", out var nodeIdValue))
-                continue;
-
-            var resolvedNodeId = NormalizeToken(nodeIdValue.As<string>());
-            if (resolvedNodeId.Length == 0)
-                continue;
-
-            var nodeType = row.TryGetValue("nodeType", out var nodeTypeValue)
-                ? NormalizeToken(nodeTypeValue.As<string>())
-                : "Unknown";
-            if (nodeType.Length == 0)
-                nodeType = "Unknown";
-
-            var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
-                ? propertiesJsonValue.As<string>()
-                : "{}";
-            var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
-                ? updatedAtEpochMsValue.As<long>()
-                : 0L;
-
-            nodes.Add(new ProjectionGraphNode
-            {
-                Scope = scopeValue,
-                NodeId = resolvedNodeId,
-                NodeType = nodeType,
-                Properties = DeserializeProperties(propertiesJson),
-                UpdatedAt = FromUnixTimeMilliseconds(updatedAtEpochMs),
-            });
+            var node = Neo4jProjectionGraphStoreRowMapper.MapNode(scopeValue, row, DeserializeProperties);
+            if (node != null)
+                nodes.Add(node);
         }
 
         return nodes;
@@ -242,24 +199,15 @@ public async Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
         CancellationToken ct = default)
     {
         ct.ThrowIfCancellationRequested();
-        var scopeValue = NormalizeToken(scope);
-        var ownerValue = NormalizeToken(ownerId);
+        var scopeValue = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(scope);
+        var ownerValue = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(ownerId);
         if (scopeValue.Length == 0 || ownerValue.Length == 0)
             return [];
 
         await EnsureSchemaAsync(ct);
         var boundedTake = Math.Clamp(take, 1, 50000);
         var boundedSkip = Math.Max(0, skip);
-        var cypher = $"MATCH ()-[r:{_edgeType} {{scope: $scope}}]->() " +
-                     "WHERE coalesce(r.projectionManaged, false) = true " +
-                     "AND r.projectionOwnerId = $ownerId " +
-                     "RETURN r.edgeId AS edgeId, " +
-                     "startNode(r).nodeId AS fromNodeId, " +
-                     "endNode(r).nodeId AS toNodeId, " +
-                     "coalesce(r.relationType, '') AS relationType, " +
-                     "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
-                     "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
-                     "ORDER BY updatedAtEpochMs DESC SKIP $skip LIMIT $take";
+        var cypher = Neo4jProjectionGraphStoreCypherSupport.BuildListEdgesByOwnerCypher(_edgeType);
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scopeValue,
@@ -272,7 +220,7 @@ public async Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
         var edges = new List<ProjectionGraphEdge>(rows.Count);
         foreach (var row in rows)
         {
-            var edge = BuildEdgeFromRow(scopeValue, row);
+            var edge = Neo4jProjectionGraphStoreRowMapper.MapEdge(scopeValue, row, DeserializeProperties);
             if (edge != null)
                 edges.Add(edge);
         }
@@ -286,15 +234,18 @@ public async Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
     {
         ArgumentNullException.ThrowIfNull(query);
         ct.ThrowIfCancellationRequested();
-        var scope = NormalizeToken(query.Scope);
-        var rootNodeId = NormalizeToken(query.RootNodeId);
+        var scope = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(query.Scope);
+        var rootNodeId = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(query.RootNodeId);
         if (scope.Length == 0 || rootNodeId.Length == 0)
             return [];
 
         await EnsureSchemaAsync(ct);
         var boundedTake = Math.Clamp(query.Take, 1, 5000);
-        var edgeTypes = NormalizeEdgeTypes(query.EdgeTypes);
-        var cypher = BuildNeighborCypher(query.Direction, boundedTake);
+        var edgeTypes = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeEdgeTypes(query.EdgeTypes);
+        var cypher = Neo4jProjectionGraphStoreCypherSupport.BuildNeighborCypher(
+            _nodeLabel,
+            _edgeType,
+            query.Direction);
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scope,
@@ -307,7 +258,7 @@ public async Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
         var edges = new List<ProjectionGraphEdge>(rows.Count);
         foreach (var row in rows)
         {
-            var edge = BuildEdgeFromRow(scope, row);
+            var edge = Neo4jProjectionGraphStoreRowMapper.MapEdge(scope, row, DeserializeProperties);
             if (edge != null)
                 edges.Add(edge);
         }
@@ -321,16 +272,20 @@ public async Task<ProjectionGraphSubgraph> GetSubgraphAsync(
     {
         ArgumentNullException.ThrowIfNull(query);
         ct.ThrowIfCancellationRequested();
-        var scope = NormalizeToken(query.Scope);
-        var rootNodeId = NormalizeToken(query.RootNodeId);
+        var scope = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(query.Scope);
+        var rootNodeId = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(query.RootNodeId);
         if (scope.Length == 0 || rootNodeId.Length == 0)
             return new ProjectionGraphSubgraph();
 
         await EnsureSchemaAsync(ct);
         var depth = Math.Clamp(query.Depth, 1, _maxTraversalDepth);
         var take = Math.Clamp(query.Take, 1, 5000);
-        var edgeTypes = NormalizeEdgeTypes(query.EdgeTypes);
-        var cypher = BuildSubgraphEdgesCypher(query.Direction, depth);
+        var edgeTypes = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeEdgeTypes(query.EdgeTypes);
+        var cypher = Neo4jProjectionGraphStoreCypherSupport.BuildSubgraphEdgesCypher(
+            _nodeLabel,
+            _edgeType,
+            query.Direction,
+            depth);
         var parameters = new Dictionary<string, object?>
         {
             ["scope"] = scope,
@@ -343,7 +298,7 @@ public async Task<ProjectionGraphSubgraph> GetSubgraphAsync(
         var edges = new List<ProjectionGraphEdge>(rows.Count);
         foreach (var row in rows)
         {
-            var edge = BuildEdgeFromRow(scope, row);
+            var edge = Neo4jProjectionGraphStoreRowMapper.MapEdge(scope, row, DeserializeProperties);
             if (edge != null)
                 edges.Add(edge);
         }
@@ -351,7 +306,7 @@ public async Task<ProjectionGraphSubgraph> GetSubgraphAsync(
         var nodeIds = edges
             .SelectMany(x => new[] { x.FromNodeId, x.ToNodeId })
             .Append(rootNodeId)
-            .Where(x => NormalizeToken(x).Length > 0)
+            .Where(x => Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(x).Length > 0)
             .ToHashSet(StringComparer.Ordinal);
         var nodes = await GetNodesByIdsAsync(scope, nodeIds, ct);
         if (!nodes.Any(x => string.Equals(x.NodeId, rootNodeId, StringComparison.Ordinal)))
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreCypherSupport.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreCypherSupport.cs
new file mode 100644
index 000000000..a6c8a2d19
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreCypherSupport.cs
@@ -0,0 +1,143 @@
+namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
+
+internal static class Neo4jProjectionGraphStoreCypherSupport
+{
+    internal static string BuildUpsertNodeCypher(string nodeLabel)
+    {
+        return $"MERGE (n:{nodeLabel} {{scope: $scope, nodeId: $nodeId}}) " +
+               "SET n.nodeType = $nodeType, " +
+               "n.propertiesJson = $propertiesJson, " +
+               "n.updatedAtEpochMs = $updatedAtEpochMs, " +
+               "n.projectionManaged = $projectionManaged, " +
+               "n.projectionOwnerId = CASE WHEN $projectionOwnerId = '' THEN null ELSE $projectionOwnerId END";
+    }
+
+    internal static string BuildUpsertEdgeCypher(string nodeLabel, string edgeType)
+    {
+        return $"MERGE (from:{nodeLabel} {{scope: $scope, nodeId: $fromNodeId}}) " +
+               "ON CREATE SET from.nodeType = 'Unknown', from.propertiesJson = '{}', from.updatedAtEpochMs = $updatedAtEpochMs " +
+               $"MERGE (to:{nodeLabel} {{scope: $scope, nodeId: $toNodeId}}) " +
+               "ON CREATE SET to.nodeType = 'Unknown', to.propertiesJson = '{}', to.updatedAtEpochMs = $updatedAtEpochMs " +
+               $"MERGE (from)-[r:{edgeType} {{scope: $scope, edgeId: $edgeId}}]->(to) " +
+               "SET r.relationType = $relationType, " +
+               "r.propertiesJson = $propertiesJson, " +
+               "r.updatedAtEpochMs = $updatedAtEpochMs, " +
+               "r.projectionManaged = $projectionManaged, " +
+               "r.projectionOwnerId = CASE WHEN $projectionOwnerId = '' THEN null ELSE $projectionOwnerId END";
+    }
+
+    internal static string BuildDeleteNodeCypher(string nodeLabel)
+    {
+        return $"MATCH (n:{nodeLabel} {{scope: $scope, nodeId: $nodeId}}) " +
+               "WHERE NOT (n)-[]-() DELETE n";
+    }
+
+    internal static string BuildDeleteEdgeCypher(string edgeType)
+    {
+        return $"MATCH ()-[r:{edgeType} {{scope: $scope, edgeId: $edgeId}}]->() DELETE r";
+    }
+
+    internal static string BuildListNodesByOwnerCypher(string nodeLabel)
+    {
+        return $"MATCH (n:{nodeLabel} {{scope: $scope}}) " +
+               "WHERE coalesce(n.projectionManaged, false) = true " +
+               "AND n.projectionOwnerId = $ownerId " +
+               "RETURN n.nodeId AS nodeId, " +
+               "coalesce(n.nodeType, '') AS nodeType, " +
+               "coalesce(n.propertiesJson, '{}') AS propertiesJson, " +
+               "coalesce(n.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
+               "ORDER BY updatedAtEpochMs DESC SKIP $skip LIMIT $take";
+    }
+
+    internal static string BuildListEdgesByOwnerCypher(string edgeType)
+    {
+        return $"MATCH ()-[r:{edgeType} {{scope: $scope}}]->() " +
+               "WHERE coalesce(r.projectionManaged, false) = true " +
+               "AND r.projectionOwnerId = $ownerId " +
+               "RETURN r.edgeId AS edgeId, " +
+               "startNode(r).nodeId AS fromNodeId, " +
+               "endNode(r).nodeId AS toNodeId, " +
+               "coalesce(r.relationType, '') AS relationType, " +
+               "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
+               "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
+               "ORDER BY updatedAtEpochMs DESC SKIP $skip LIMIT $take";
+    }
+
+    internal static string BuildNeighborCypher(
+        string nodeLabel,
+        string edgeType,
+        ProjectionGraphDirection direction)
+    {
+        var filter = "WHERE size($edgeTypes) = 0 OR r.relationType IN $edgeTypes ";
+        var projection = "RETURN r.edgeId AS edgeId, " +
+                         "startNode(r).nodeId AS fromNodeId, " +
+                         "endNode(r).nodeId AS toNodeId, " +
+                         "coalesce(r.relationType, '') AS relationType, " +
+                         "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
+                         "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
+                         "ORDER BY updatedAtEpochMs DESC LIMIT $take";
+        return direction switch
+        {
+            ProjectionGraphDirection.Outbound =>
+                $"MATCH (root:{nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})-[r:{edgeType}]->(:{nodeLabel} {{scope: $scope}}) " +
+                filter +
+                projection,
+            ProjectionGraphDirection.Inbound =>
+                $"MATCH (root:{nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})<-[r:{edgeType}]-(:{nodeLabel} {{scope: $scope}}) " +
+                filter +
+                projection,
+            _ =>
+                $"MATCH (root:{nodeLabel} {{scope: $scope, nodeId: $rootNodeId}})-[r:{edgeType}]-(:{nodeLabel} {{scope: $scope}}) " +
+                filter +
+                projection,
+        };
+    }
+
+    internal static string BuildSubgraphEdgesCypher(
+        string nodeLabel,
+        string edgeType,
+        ProjectionGraphDirection direction,
+        int depth)
+    {
+        var pathPattern = direction switch
+        {
+            ProjectionGraphDirection.Outbound =>
+                $"(root)-[:{edgeType}*1..{depth}]->()",
+            ProjectionGraphDirection.Inbound =>
+                $"(root)<-[:{edgeType}*1..{depth}]-()",
+            _ =>
+                $"(root)-[:{edgeType}*1..{depth}]-()",
+        };
+
+        return $"MATCH (root:{nodeLabel} {{scope: $scope, nodeId: $rootNodeId}}) " +
+               $"OPTIONAL MATCH p={pathPattern} " +
+               "WHERE p IS NULL OR (" +
+               "all(n IN nodes(p) WHERE coalesce(n.scope, '') = $scope) " +
+               "AND (size($edgeTypes) = 0 OR all(rel IN relationships(p) WHERE rel.relationType IN $edgeTypes))) " +
+               "UNWIND CASE WHEN p IS NULL THEN [] ELSE relationships(p) END AS r " +
+               "WITH DISTINCT r " +
+               "RETURN r.edgeId AS edgeId, " +
+               "startNode(r).nodeId AS fromNodeId, " +
+               "endNode(r).nodeId AS toNodeId, " +
+               "coalesce(r.relationType, '') AS relationType, " +
+               "coalesce(r.propertiesJson, '{}') AS propertiesJson, " +
+               "coalesce(r.updatedAtEpochMs, 0) AS updatedAtEpochMs " +
+               "ORDER BY updatedAtEpochMs DESC LIMIT $take";
+    }
+
+    internal static string BuildGetNodesByIdsCypher(string nodeLabel)
+    {
+        return $"MATCH (n:{nodeLabel} {{scope: $scope}}) " +
+               "WHERE n.nodeId IN $nodeIds " +
+               "RETURN n.nodeId AS nodeId, " +
+               "coalesce(n.nodeType, '') AS nodeType, " +
+               "coalesce(n.propertiesJson, '{}') AS propertiesJson, " +
+               "coalesce(n.updatedAtEpochMs, 0) AS updatedAtEpochMs";
+    }
+
+    internal static string BuildCreateNodeConstraintCypher(string nodeLabel, string constraintName)
+    {
+        return $"CREATE CONSTRAINT {constraintName} IF NOT EXISTS " +
+               $"FOR (n:{nodeLabel}) REQUIRE (n.scope, n.nodeId) IS UNIQUE";
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreNormalizationSupport.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreNormalizationSupport.cs
new file mode 100644
index 000000000..2e8b807ae
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreNormalizationSupport.cs
@@ -0,0 +1,78 @@
+namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
+
+internal static class Neo4jProjectionGraphStoreNormalizationSupport
+{
+    internal static long NormalizeTimestamp(DateTimeOffset timestamp)
+    {
+        if (timestamp == default)
+            return DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
+        return timestamp.ToUnixTimeMilliseconds();
+    }
+
+    internal static DateTimeOffset FromUnixTimeMilliseconds(long value)
+    {
+        var safeValue = Math.Max(0, value);
+        return DateTimeOffset.FromUnixTimeMilliseconds(safeValue);
+    }
+
+    internal static string NormalizeToken(string? token) => token?.Trim() ?? "";
+
+    internal static string[] NormalizeEdgeTypes(IReadOnlyList<string> edgeTypes)
+    {
+        return edgeTypes
+            .Select(NormalizeToken)
+            .Where(x => x.Length > 0)
+            .Distinct(StringComparer.Ordinal)
+            .ToArray();
+    }
+
+    internal static bool ResolveProjectionManaged(IReadOnlyDictionary<string, string> properties)
+    {
+        if (!properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedMarkerKey, out var markerValue))
+            return false;
+
+        var normalizedMarker = NormalizeToken(markerValue);
+        return string.Equals(
+            normalizedMarker,
+            ProjectionGraphManagedPropertyKeys.ManagedMarkerValue,
+            StringComparison.Ordinal);
+    }
+
+    internal static string ResolveProjectionOwnerId(IReadOnlyDictionary<string, string> properties)
+    {
+        if (!properties.TryGetValue(ProjectionGraphManagedPropertyKeys.ManagedOwnerIdKey, out var ownerId))
+            return "";
+
+        return NormalizeToken(ownerId);
+    }
+
+    internal static string NormalizeLabel(string rawLabel, string fallback)
+    {
+        var label = (rawLabel ?? "").Trim();
+        if (label.Length == 0)
+            label = fallback;
+
+        var chars = label
+            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? ch : '_')
+            .ToArray();
+        var normalized = new string(chars);
+        if (normalized.Length == 0)
+            normalized = fallback;
+        if (char.IsDigit(normalized[0]))
+            normalized = $"N_{normalized}";
+        return normalized;
+    }
+
+    internal static string NormalizeConstraintName(string rawName)
+    {
+        var chars = rawName
+            .Select(ch => char.IsLetterOrDigit(ch) || ch == '_' ? char.ToLowerInvariant(ch) : '_')
+            .ToArray();
+        var normalized = new string(chars);
+        if (normalized.Length == 0)
+            return "projection_graph_constraint";
+        if (char.IsDigit(normalized[0]))
+            normalized = $"c_{normalized}";
+        return normalized;
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStorePropertyCodec.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStorePropertyCodec.cs
new file mode 100644
index 000000000..c9b4e8eb1
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStorePropertyCodec.cs
@@ -0,0 +1,41 @@
+using System.Text.Json;
+using Microsoft.Extensions.Logging;
+
+namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
+
+internal static class Neo4jProjectionGraphStorePropertyCodec
+{
+    internal static string SerializeProperties(
+        IReadOnlyDictionary<string, string> properties,
+        JsonSerializerOptions jsonOptions)
+    {
+        if (properties.Count == 0)
+            return "{}";
+        return JsonSerializer.Serialize(properties, jsonOptions);
+    }
+
+    internal static Dictionary<string, string> DeserializeProperties(
+        string payload,
+        JsonSerializerOptions jsonOptions,
+        ILogger logger,
+        string providerName)
+    {
+        if (string.IsNullOrWhiteSpace(payload))
+            return new Dictionary<string, string>(StringComparer.Ordinal);
+        try
+        {
+            var parsed = JsonSerializer.Deserialize<Dictionary<string, string>>(payload, jsonOptions);
+            return parsed == null
+                ? new Dictionary<string, string>(StringComparer.Ordinal)
+                : new Dictionary<string, string>(parsed, StringComparer.Ordinal);
+        }
+        catch (Exception ex)
+        {
+            logger.LogWarning(
+                ex,
+                "Failed to deserialize graph properties payload. provider={Provider}",
+                providerName);
+            return new Dictionary<string, string>(StringComparer.Ordinal);
+        }
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreRowMapper.cs b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreRowMapper.cs
new file mode 100644
index 000000000..72e42c16e
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Providers.Neo4j/Stores/Neo4jProjectionGraphStoreRowMapper.cs
@@ -0,0 +1,84 @@
+using Neo4j.Driver;
+
+namespace Aevatar.CQRS.Projection.Providers.Neo4j.Stores;
+
+internal static class Neo4jProjectionGraphStoreRowMapper
+{
+    internal static ProjectionGraphEdge? MapEdge(
+        string scope,
+        IReadOnlyDictionary<string, object> row,
+        Func<string, Dictionary<string, string>> deserializeProperties)
+    {
+        if (!row.TryGetValue("edgeId", out var edgeIdValue))
+            return null;
+        if (!row.TryGetValue("fromNodeId", out var fromNodeIdValue))
+            return null;
+        if (!row.TryGetValue("toNodeId", out var toNodeIdValue))
+            return null;
+
+        var edgeId = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(edgeIdValue.As<string>());
+        var fromNodeId = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(fromNodeIdValue.As<string>());
+        var toNodeId = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(toNodeIdValue.As<string>());
+        if (edgeId.Length == 0 || fromNodeId.Length == 0 || toNodeId.Length == 0)
+            return null;
+
+        var relationType = row.TryGetValue("relationType", out var relationTypeValue)
+            ? Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(relationTypeValue.As<string>())
+            : "Unknown";
+        if (relationType.Length == 0)
+            relationType = "Unknown";
+
+        var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
+            ? propertiesJsonValue.As<string>()
+            : "{}";
+        var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
+            ? updatedAtEpochMsValue.As<long>()
+            : 0L;
+
+        return new ProjectionGraphEdge
+        {
+            Scope = scope,
+            EdgeId = edgeId,
+            FromNodeId = fromNodeId,
+            ToNodeId = toNodeId,
+            EdgeType = relationType,
+            Properties = deserializeProperties(propertiesJson),
+            UpdatedAt = Neo4jProjectionGraphStoreNormalizationSupport.FromUnixTimeMilliseconds(updatedAtEpochMs),
+        };
+    }
+
+    internal static ProjectionGraphNode? MapNode(
+        string scope,
+        IReadOnlyDictionary<string, object> row,
+        Func<string, Dictionary<string, string>> deserializeProperties)
+    {
+        if (!row.TryGetValue("nodeId", out var nodeIdValue))
+            return null;
+
+        var nodeId = Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(nodeIdValue.As<string>());
+        if (nodeId.Length == 0)
+            return null;
+
+        var nodeType = row.TryGetValue("nodeType", out var nodeTypeValue)
+            ? Neo4jProjectionGraphStoreNormalizationSupport.NormalizeToken(nodeTypeValue.As<string>())
+            : "Unknown";
+        if (nodeType.Length == 0)
+            nodeType = "Unknown";
+
+        var propertiesJson = row.TryGetValue("propertiesJson", out var propertiesJsonValue)
+            ? propertiesJsonValue.As<string>()
+            : "{}";
+        var updatedAtEpochMs = row.TryGetValue("updatedAtEpochMs", out var updatedAtEpochMsValue)
+            ? updatedAtEpochMsValue.As<long>()
+            : 0L;
+
+        return new ProjectionGraphNode
+        {
+            Scope = scope,
+            NodeId = nodeId,
+            NodeType = nodeType,
+            Properties = deserializeProperties(propertiesJson),
+            UpdatedAt = Neo4jProjectionGraphStoreNormalizationSupport.FromUnixTimeMilliseconds(updatedAtEpochMs),
+        };
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs
index 69d9d40d7..bac8f5382 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/IProjectionStoreBindingAvailability.cs
@@ -3,4 +3,6 @@ namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 public interface IProjectionStoreBindingAvailability
 {
     bool IsConfigured { get; }
+
+    string AvailabilityReason { get; }
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
index e085b8c1e..4f37c3639 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/README.md
@@ -7,6 +7,7 @@
 - `IProjectionStoreDispatcher<TReadModel, TKey>`
 - `IProjectionStoreBinding<TReadModel, TKey>`
 - `IProjectionQueryableStoreBinding<TReadModel, TKey>`
+- `IProjectionStoreBindingAvailability`
 - `IProjectionDocumentMetadataResolver`
 - `ProjectionGraphManagedPropertyKeys`
 
@@ -15,6 +16,7 @@
 1. 一个 ReadModel 可绑定多个 Store（例如 Document + Graph）。
 2. 仅允许一个 `IProjectionQueryableStoreBinding` 作为查询/读取来源。
 3. 其余 binding 作为写入目标参与分发。
+4. `IProjectionStoreBindingAvailability` 暴露 `IsConfigured + AvailabilityReason`，用于可观测地说明绑定为何被跳过。
 
 ## 边界
 
diff --git a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
index 4a3b4bf88..9176f2588 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/DependencyInjection/ServiceCollectionExtensions.cs
@@ -4,7 +4,7 @@
 
 namespace Aevatar.CQRS.Projection.Runtime.DependencyInjection;
 
-public static class ServiceCollectionExtensions
+public static class ProjectionRuntimeServiceCollectionExtensions
 {
     public static IServiceCollection AddProjectionReadModelRuntime(this IServiceCollection services)
     {
diff --git a/src/Aevatar.CQRS.Projection.Runtime/README.md b/src/Aevatar.CQRS.Projection.Runtime/README.md
index f346b57a8..6eaa7fbaa 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/README.md
+++ b/src/Aevatar.CQRS.Projection.Runtime/README.md
@@ -26,3 +26,4 @@
 1. Runtime 负责“一对多 store 分发”，不做 ProviderName 路由。
 2. Document 与 Graph 保持平行；Runtime 默认同时装配两类 binding，按配置自动激活。
 3. queryable binding 为可选（0..1）；存在时提供 `Get/List/Mutate`，写入始终分发到所有已配置 binding。
+4. binding 未激活时由 `IProjectionStoreBindingAvailability.AvailabilityReason` 输出统一跳过原因日志。
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs
index a37d66101..f4a5a4f81 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionDocumentStoreBinding.cs
@@ -14,6 +14,10 @@ public ProjectionDocumentStoreBinding(IProjectionDocumentStore<TReadModel, TKey>
 
     public bool IsConfigured => _store is not null;
 
+    public string AvailabilityReason => IsConfigured
+        ? "Document binding is active."
+        : "Document projection store service is not registered.";
+
     public string StoreName => IsConfigured ? "Document" : "Document(Unconfigured)";
 
     public Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs
index 4f9f9b4cd..0902b49e7 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionGraphStoreBinding.cs
@@ -19,6 +19,22 @@ public ProjectionGraphStoreBinding(IProjectionGraphStore? graphStore = null)
         _graphStore is not null &&
         typeof(IGraphReadModel).IsAssignableFrom(typeof(TReadModel));
 
+    public string AvailabilityReason
+    {
+        get
+        {
+            if (_graphStore is null)
+                return "Graph projection store service is not registered.";
+
+            if (!typeof(IGraphReadModel).IsAssignableFrom(typeof(TReadModel)))
+            {
+                return $"Read model '{typeof(TReadModel).FullName}' does not implement '{typeof(IGraphReadModel).FullName}'.";
+            }
+
+            return "Graph binding is active.";
+        }
+    }
+
     public string StoreName => IsConfigured ? "Graph" : "Graph(Unconfigured)";
 
     public async Task UpsertAsync(TReadModel readModel, CancellationToken ct = default)
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
index adb8155d6..b9bda225f 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
@@ -25,13 +25,37 @@ public ProjectionStoreDispatcher(
         _options = options ?? new ProjectionStoreDispatchOptions();
         _logger = logger ?? NullLogger<ProjectionStoreDispatcher<TReadModel, TKey>>.Instance;
 
-        _bindings = bindings
-            .Where(IsBindingConfigured)
-            .ToList();
+        var configuredBindings = new List<IProjectionStoreBinding<TReadModel, TKey>>();
+        var skippedBindings = new List<SkippedBindingInfo>();
+        foreach (var binding in bindings)
+        {
+            if (binding is IProjectionStoreBindingAvailability availability &&
+                !availability.IsConfigured)
+            {
+                skippedBindings.Add(new SkippedBindingInfo(binding.StoreName, availability.AvailabilityReason));
+                continue;
+            }
+
+            configuredBindings.Add(binding);
+        }
+
+        foreach (var skipped in skippedBindings)
+        {
+            _logger.LogInformation(
+                "Projection binding skipped. readModelType={ReadModelType} store={Store} reason={Reason}",
+                typeof(TReadModel).FullName,
+                skipped.StoreName,
+                skipped.Reason);
+        }
+
+        _bindings = configuredBindings;
         if (_bindings.Count == 0)
         {
+            var skipSummary = skippedBindings.Count == 0
+                ? "none"
+                : string.Join("; ", skippedBindings.Select(x => $"{x.StoreName}: {x.Reason}"));
             throw new InvalidOperationException(
-                $"No configured projection store bindings are registered for read model '{typeof(TReadModel).FullName}'.");
+                $"No configured projection store bindings are registered for read model '{typeof(TReadModel).FullName}'. skippedBindings={skipSummary}");
         }
 
         var queryBindings = _bindings
@@ -204,10 +228,7 @@ private IProjectionQueryableStoreBinding<TReadModel, TKey> GetRequiredQueryBindi
                    $"Queryable projection store binding is not configured for read model '{typeof(TReadModel).FullName}'.");
     }
 
-    private static bool IsBindingConfigured(IProjectionStoreBinding<TReadModel, TKey> binding)
-    {
-        return binding is not IProjectionStoreBindingAvailability availability || availability.IsConfigured;
-    }
+    private sealed record SkippedBindingInfo(string StoreName, string Reason);
 
     private sealed class NoOpProjectionStoreDispatchCompensator
         : IProjectionStoreDispatchCompensator<TReadModel, TKey>
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs b/src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs
index ca8b0313b..330a5c881 100644
--- a/src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/Aevatar.CQRS.Projection.StateMirror/DependencyInjection/ServiceCollectionExtensions.cs
@@ -7,7 +7,7 @@
 
 namespace Aevatar.CQRS.Projection.StateMirror.DependencyInjection;
 
-public static class ServiceCollectionExtensions
+public static class StateMirrorServiceCollectionExtensions
 {
     public static IServiceCollection AddJsonStateMirrorProjection<TState, TReadModel>(
         this IServiceCollection services,
diff --git a/src/Aevatar.CQRS.Projection.StateMirror/README.md b/src/Aevatar.CQRS.Projection.StateMirror/README.md
index e14c97ac3..fbd1802e2 100644
--- a/src/Aevatar.CQRS.Projection.StateMirror/README.md
+++ b/src/Aevatar.CQRS.Projection.StateMirror/README.md
@@ -29,6 +29,12 @@ flowchart LR
 - `services.AddJsonStateMirrorReadModelProjector<TState, TReadModel, TKey>(configure?)`
   注册映射器和自定义键类型执行器。
 
+## 边界约束
+
+- `StateMirror` 仅用于 `State -> ReadModel` 的结构镜像与字段重命名/忽略，不承载业务规则。
+- 若映射过程涉及业务语义计算、状态机衍生字段、跨事件聚合，应使用业务专用 mapper/reducer，而不是 `StateMirror`。
+- 可并存策略：默认采用 `StateMirror` 快速落地，出现业务语义时切换到显式业务 mapper。
+
 ## 示例
 
 ```csharp
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphStoreBindingTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphStoreBindingTests.cs
index 18c86bf23..447e479bd 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphStoreBindingTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionGraphStoreBindingTests.cs
@@ -201,6 +201,15 @@ await binding.UpsertAsync(new TestGraphReadModel
         rootNeighbors.Should().BeEmpty();
     }
 
+    [Fact]
+    public void AvailabilityReason_WhenReadModelIsNotGraphReadModel_ShouldExplainWhySkipped()
+    {
+        var binding = new ProjectionGraphStoreBinding<NonGraphReadModel, string>(new RecordingGraphStore());
+
+        binding.IsConfigured.Should().BeFalse();
+        binding.AvailabilityReason.Should().Contain("does not implement");
+    }
+
     private static string BuildOwnerId(string id) => $"{typeof(TestGraphReadModel).FullName}:{id}";
 
     private static ProjectionGraphNode Node(string nodeId)
@@ -240,6 +249,11 @@ private sealed class TestGraphReadModel : IGraphReadModel
         public IReadOnlyList<ProjectionGraphEdge> GraphEdges { get; init; } = [];
     }
 
+    private sealed class NonGraphReadModel : IProjectionReadModel
+    {
+        public string Id { get; init; } = "";
+    }
+
     private sealed class RecordingGraphStore : IProjectionGraphStore
     {
         private readonly object _gate = new();
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs
index 82d0a6cda..761fd7c58 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionStoreDispatcherTests.cs
@@ -103,6 +103,18 @@ public void Ctor_WhenNoConfiguredBindings_ShouldThrow()
             .WithMessage("*No configured projection store bindings*");
     }
 
+    [Fact]
+    public void Ctor_WhenNoConfiguredBindings_ShouldIncludeAvailabilityReason()
+    {
+        var unconfiguredDocumentBinding = new ProjectionDocumentStoreBinding<TestReadModel, string>();
+
+        Action act = () => new ProjectionStoreDispatcher<TestReadModel, string>(
+            [unconfiguredDocumentBinding]);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*Document projection store service is not registered*");
+    }
+
     [Fact]
     public void Ctor_WhenMultipleQueryableBindings_ShouldThrow()
     {
@@ -113,6 +125,15 @@ public void Ctor_WhenMultipleQueryableBindings_ShouldThrow()
             .WithMessage("*At most one queryable projection store binding is allowed*");
     }
 
+    [Fact]
+    public void ProjectionDocumentBinding_WhenStoreMissing_ShouldExposeAvailabilityReason()
+    {
+        var binding = new ProjectionDocumentStoreBinding<TestReadModel, string>();
+
+        binding.IsConfigured.Should().BeFalse();
+        binding.AvailabilityReason.Should().Contain("not registered");
+    }
+
     [Fact]
     public async Task UpsertAsync_WhenBindingFailsInitially_ShouldRetry()
     {

From a545aa88f4706c3c94d8f8600d46f7cfbc60ae05 Mon Sep 17 00:00:00 2001
From: eanzhao <yiqi.zhao@aelf.io>
Date: Wed, 25 Feb 2026 15:19:35 +0800
Subject: [PATCH 45/46] Implement projection reliability fixes and update
 architecture audit docs

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 aevatar.slnx                                  |  43 +--
 ...-event-sourcing-elasticsearch-readmodel.md | 101 +++++++
 .../pr13-code-review-2026-02-25.md            | 105 +++++++
 .../Aevatar.CQRS.Projection.Core.csproj       |   1 +
 .../ActorProjectionOwnershipCoordinator.cs    |   8 +-
 .../ProjectionOwnershipCoordinatorGAgent.cs   |  53 +++-
 .../ProjectionOwnershipCoordinatorOptions.cs  |  20 ++
 ...ction_dispatch_compensation_messages.proto |  52 ++++
 .../projection_ownership_messages.proto       |   2 +
 ...jectionStoreDispatchCompensationContext.cs |   7 +
 .../Runtime/ProjectionStoreDispatcher.cs      |   3 +
 .../appsettings.Distributed.json              |  31 ++
 .../WorkflowExecutionProjectionOptions.cs     |  33 ++
 .../ServiceCollectionExtensions.cs            |   7 +
 ...torProjectionDispatchCompensationOutbox.cs |  89 ++++++
 .../IProjectionDispatchCompensationOutbox.cs  |  14 +
 ...jectionDispatchCompensationOutboxGAgent.cs | 222 ++++++++++++++
 ...DispatchCompensationReplayHostedService.cs |  95 ++++++
 ...kflowProjectionDurableOutboxCompensator.cs |  62 ++++
 ...ReadModelStartupValidationHostedService.cs |  68 ++++-
 .../Properties/InternalsVisibleTo.cs          |   3 +
 ...tionProviderServiceCollectionExtensions.cs |  19 ++
 .../ProjectionOwnershipAndSessionHubTests.cs  |  79 ++++-
 .../ProjectionOwnershipProtoCoverageTests.cs  |   2 +
 ...lowExecutionProjectionRegistrationTests.cs |  63 +++-
 .../WorkflowHostingExtensionsCoverageTests.cs |  22 ++
 ...flowProjectionDispatchCompensationTests.cs | 283 ++++++++++++++++++
 ...odelStartupValidationHostedServiceTests.cs | 224 ++++++++++++++
 28 files changed, 1673 insertions(+), 38 deletions(-)
 create mode 100644 docs/architecture/branch-summary-feat-generic-event-sourcing-elasticsearch-readmodel.md
 create mode 100644 docs/audit-scorecard/pr13-code-review-2026-02-25.md
 create mode 100644 src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorOptions.cs
 create mode 100644 src/Aevatar.CQRS.Projection.Core/projection_dispatch_compensation_messages.proto
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/ActorProjectionDispatchCompensationOutbox.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/IProjectionDispatchCompensationOutbox.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchCompensationOutboxGAgent.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchCompensationReplayHostedService.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDurableOutboxCompensator.cs
 create mode 100644 src/workflow/Aevatar.Workflow.Projection/Properties/InternalsVisibleTo.cs
 create mode 100644 test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionDispatchCompensationTests.cs
 create mode 100644 test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelStartupValidationHostedServiceTests.cs

diff --git a/aevatar.slnx b/aevatar.slnx
index 2ba1dd45f..026364cd4 100644
--- a/aevatar.slnx
+++ b/aevatar.slnx
@@ -12,45 +12,48 @@
     <File Path="docs\EVENT_SOURCING.md" />
     <File Path="docs\ROLE.md" />
     <File Path="docs\PROJECT_ARCHITECTURE.md" />
+    <File Path="docs\CQRS_ARCHITECTURE.md" />
+    <File Path="docs\PROJECT_SPLIT_STRATEGY.md" />
+    <File Path="docs\STREAM_FORWARD_ARCHITECTURE.md" />
   </Folder>
   <Folder Name="/resources/">
     <File Path="Directory.Packages.props" />
     <File Path="Directory.Build.props" />
   </Folder>
   <Folder Name="/src/">
-    <Project Path="src\Aevatar.Foundation.Runtime.Hosting\Aevatar.Foundation.Runtime.Hosting.csproj" />
-    <Project Path="src\Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet\Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.csproj" />
-    <Project Path="src/Aevatar.Foundation.Runtime.Implementations.Orleans/Aevatar.Foundation.Runtime.Implementations.Orleans.csproj" />
     <Project Path="src/Aevatar.CQRS.Projection.Runtime.Abstractions/Aevatar.CQRS.Projection.Runtime.Abstractions.csproj" />
     <Project Path="src/Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming/Aevatar.Foundation.Runtime.Implementations.Orleans.Streaming.csproj" />
     <Project Path="src/Aevatar.Foundation.Runtime.Implementations.Orleans.Transport.MassTransit/Aevatar.Foundation.Runtime.Implementations.Orleans.Transport.MassTransit.csproj" />
+    <Project Path="src/Aevatar.Foundation.Runtime.Implementations.Orleans/Aevatar.Foundation.Runtime.Implementations.Orleans.csproj" />
     <Project Path="src/Aevatar.Foundation.Runtime.Streaming.Implementations.MassTransit/Aevatar.Foundation.Runtime.Streaming.Implementations.MassTransit.csproj" />
     <Project Path="src/Aevatar.Foundation.Runtime.Transport.Implementations.MassTransitKafka/Aevatar.Foundation.Runtime.Transport.Implementations.MassTransitKafka.csproj" />
     <Project Path="src\Aevatar.AI.Abstractions\Aevatar.AI.Abstractions.csproj" />
     <Project Path="src\Aevatar.AI.Core\Aevatar.AI.Core.csproj" />
     <Project Path="src\Aevatar.AI.LLMProviders.MEAI\Aevatar.AI.LLMProviders.MEAI.csproj" />
     <Project Path="src\Aevatar.AI.LLMProviders.Tornado\Aevatar.AI.LLMProviders.Tornado.csproj" />
+    <Project Path="src\Aevatar.AI.Projection\Aevatar.AI.Projection.csproj" />
     <Project Path="src\Aevatar.AI.ToolProviders.MCP\Aevatar.AI.ToolProviders.MCP.csproj" />
     <Project Path="src\Aevatar.AI.ToolProviders.Skills\Aevatar.AI.ToolProviders.Skills.csproj" />
-    <Project Path="src\Aevatar.Bootstrap\Aevatar.Bootstrap.csproj" />
     <Project Path="src\Aevatar.Bootstrap.Extensions.AI\Aevatar.Bootstrap.Extensions.AI.csproj" />
-    <Project Path="src\Aevatar.Hosting\Aevatar.Hosting.csproj" />
+    <Project Path="src\Aevatar.Bootstrap\Aevatar.Bootstrap.csproj" />
+    <Project Path="src\Aevatar.Configuration\Aevatar.Configuration.csproj" />
     <Project Path="src\Aevatar.CQRS.Core.Abstractions\Aevatar.CQRS.Core.Abstractions.csproj" />
     <Project Path="src\Aevatar.CQRS.Core\Aevatar.CQRS.Core.csproj" />
-    <Project Path="src\Aevatar.Configuration\Aevatar.Configuration.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Core.Abstractions\Aevatar.CQRS.Projection.Core.Abstractions.csproj" />
-    <Project Path="src\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Core\Aevatar.CQRS.Projection.Core.csproj" />
-    <Project Path="src\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Providers.Elasticsearch\Aevatar.CQRS.Projection.Providers.Elasticsearch.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Providers.InMemory\Aevatar.CQRS.Projection.Providers.InMemory.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.Providers.Neo4j\Aevatar.CQRS.Projection.Providers.Neo4j.csproj" />
+    <Project Path="src\Aevatar.CQRS.Projection.Runtime\Aevatar.CQRS.Projection.Runtime.csproj" />
     <Project Path="src\Aevatar.CQRS.Projection.StateMirror\Aevatar.CQRS.Projection.StateMirror.csproj" />
-    <Project Path="src\Aevatar.Foundation.Projection\Aevatar.Foundation.Projection.csproj" />
+    <Project Path="src\Aevatar.CQRS.Projection.Stores.Abstractions\Aevatar.CQRS.Projection.Stores.Abstractions.csproj" />
     <Project Path="src\Aevatar.Foundation.Abstractions\Aevatar.Foundation.Abstractions.csproj" />
     <Project Path="src\Aevatar.Foundation.Core\Aevatar.Foundation.Core.csproj" />
+    <Project Path="src\Aevatar.Foundation.Projection\Aevatar.Foundation.Projection.csproj" />
+    <Project Path="src\Aevatar.Foundation.Runtime.Hosting\Aevatar.Foundation.Runtime.Hosting.csproj" />
+    <Project Path="src\Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet\Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet.csproj" />
     <Project Path="src\Aevatar.Foundation.Runtime\Aevatar.Foundation.Runtime.csproj" />
-    <Project Path="src\Aevatar.AI.Projection\Aevatar.AI.Projection.csproj" />
+    <Project Path="src\Aevatar.Hosting\Aevatar.Hosting.csproj" />
     <Project Path="src\Aevatar.Mainnet.Host.Api\Aevatar.Mainnet.Host.Api.csproj" />
     <Project Path="src\Aevatar.Presentation.AGUI\Aevatar.Presentation.AGUI.csproj" />
   </Folder>
@@ -58,31 +61,31 @@
     <Project Path="src/workflow/Aevatar.Workflow.Abstractions/Aevatar.Workflow.Abstractions.csproj" />
     <Project Path="src/workflow/Aevatar.Workflow.Application.Abstractions/Aevatar.Workflow.Application.Abstractions.csproj" />
     <Project Path="src/workflow/Aevatar.Workflow.Application/Aevatar.Workflow.Application.csproj" />
-    <Project Path="src/workflow/extensions/Aevatar.Workflow.Extensions.Maker/Aevatar.Workflow.Extensions.Maker.csproj" />
+    <Project Path="src/workflow/Aevatar.Workflow.Host.Api/Aevatar.Workflow.Host.Api.csproj" />
+    <Project Path="src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj" />
     <Project Path="src/workflow/extensions/Aevatar.Workflow.Extensions.AIProjection/Aevatar.Workflow.Extensions.AIProjection.csproj" />
     <Project Path="src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/Aevatar.Workflow.Extensions.Hosting.csproj" />
-    <Project Path="src/workflow/Aevatar.Workflow.Infrastructure/Aevatar.Workflow.Infrastructure.csproj" />
-    <Project Path="src/workflow/Aevatar.Workflow.Host.Api/Aevatar.Workflow.Host.Api.csproj" />
+    <Project Path="src/workflow/extensions/Aevatar.Workflow.Extensions.Maker/Aevatar.Workflow.Extensions.Maker.csproj" />
     <Project Path="src\workflow\Aevatar.Workflow.Core\Aevatar.Workflow.Core.csproj" />
     <Project Path="src\workflow\Aevatar.Workflow.Presentation.AGUIAdapter\Aevatar.Workflow.Presentation.AGUIAdapter.csproj" />
     <Project Path="src\workflow\Aevatar.Workflow.Projection\Aevatar.Workflow.Projection.csproj" />
   </Folder>
   <Folder Name="/test/">
     <Project Path="test\Aevatar.AI.Core.Tests\Aevatar.AI.Core.Tests.csproj" />
-    <Project Path="test\Aevatar.CQRS.Core.Tests\Aevatar.CQRS.Core.Tests.csproj" />
-    <Project Path="test\Aevatar.CQRS.Projection.Core.Tests\Aevatar.CQRS.Projection.Core.Tests.csproj" />
     <Project Path="test\Aevatar.AI.Tests\Aevatar.AI.Tests.csproj" />
-    <Project Path="test\Aevatar.Hosting.Tests\Aevatar.Hosting.Tests.csproj" />
-    <Project Path="test\Aevatar.Foundation.Runtime.Hosting.Tests\Aevatar.Foundation.Runtime.Hosting.Tests.csproj" />
     <Project Path="test\Aevatar.Bootstrap.Tests\Aevatar.Bootstrap.Tests.csproj" />
+    <Project Path="test\Aevatar.CQRS.Core.Tests\Aevatar.CQRS.Core.Tests.csproj" />
+    <Project Path="test\Aevatar.CQRS.Projection.Core.Tests\Aevatar.CQRS.Projection.Core.Tests.csproj" />
     <Project Path="test\Aevatar.Foundation.Abstractions.Tests\Aevatar.Foundation.Abstractions.Tests.csproj" />
     <Project Path="test\Aevatar.Foundation.Core.Tests\Aevatar.Foundation.Core.Tests.csproj" />
-    <Project Path="test\Aevatar.Workflow.Extensions.Maker.Tests\Aevatar.Workflow.Extensions.Maker.Tests.csproj" />
-    <Project Path="test\Aevatar.Workflow.Host.Api.Tests\Aevatar.Workflow.Host.Api.Tests.csproj" />
+    <Project Path="test\Aevatar.Foundation.Runtime.Hosting.Tests\Aevatar.Foundation.Runtime.Hosting.Tests.csproj" />
+    <Project Path="test\Aevatar.Hosting.Tests\Aevatar.Hosting.Tests.csproj" />
     <Project Path="test\Aevatar.Integration.Tests\Aevatar.Integration.Tests.csproj" />
     <Project Path="test\Aevatar.Workflow.Application.Tests\Aevatar.Workflow.Application.Tests.csproj" />
+    <Project Path="test\Aevatar.Workflow.Extensions.Maker.Tests\Aevatar.Workflow.Extensions.Maker.Tests.csproj" />
+    <Project Path="test\Aevatar.Workflow.Host.Api.Tests\Aevatar.Workflow.Host.Api.Tests.csproj" />
   </Folder>
   <Folder Name="/tools/">
     <Project Path="tools\Aevatar.Tools.Config\Aevatar.Tools.Config.csproj" />
   </Folder>
-</Solution>
+</Solution>
\ No newline at end of file
diff --git a/docs/architecture/branch-summary-feat-generic-event-sourcing-elasticsearch-readmodel.md b/docs/architecture/branch-summary-feat-generic-event-sourcing-elasticsearch-readmodel.md
new file mode 100644
index 000000000..e940c8319
--- /dev/null
+++ b/docs/architecture/branch-summary-feat-generic-event-sourcing-elasticsearch-readmodel.md
@@ -0,0 +1,101 @@
+# 分支改动速览（`feat/generic-event-sourcing-elasticsearch-readmodel` 相对 `dev`）
+
+## 一句话结论
+
+这条分支不是功能点修补，而是一次“主链路级”重构：把 **Event Sourcing**、**Projection Runtime/Providers**、**Workflow 查询与投影编排**、**CI 架构门禁**统一成一套更严格、可验证的工程体系。
+
+## 改动规模（`dev...HEAD`）
+
+- 提交数：47
+- 文件改动：282（`+13222 / -1512`）
+- 文件状态：新增 140、修改 110、删除 11、其余为重命名/移动
+- 变动最集中区域：
+  - `src/workflow`（51 文件）
+  - `src/Aevatar.CQRS.Projection.Core.Abstractions`（24 文件）
+  - `src/Aevatar.Foundation.Core/EventSourcing`（12 文件）
+  - `src/Aevatar.CQRS.Projection.Providers.*`（Elasticsearch/InMemory/Neo4j）
+  - `tools/ci`、`.github/workflows/ci.yml`
+
+## 老板主要写了什么（按主线）
+
+### 1) 把有状态 Actor 强制拉到 Event Sourcing 主链路
+
+核心文件：`src/Aevatar.Foundation.Core/GAgentBase.TState.cs`、`src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs`
+
+- `GAgentBase<TState>` 激活时强制 `ReplayAsync` 恢复状态，停用时 `ConfirmEventsAsync + PersistSnapshotAsync`。
+- 新增 `PersistDomainEventAsync/PersistDomainEventsAsync`，强调“先领域事件，再状态演进”。
+- `State` 写入受 guard 约束，避免绕开事件链路直接改状态。
+- `EventSourcingBehavior` 明确禁止把 `TState` 当“快照事件”写入 EventStore。
+
+### 2) 补齐 EventStore 后端与快照后清理机制
+
+核心文件：`src/Aevatar.Foundation.Runtime/Persistence/FileEventStore.cs`、`src/Aevatar.Foundation.Runtime.Persistence.Implementations.Garnet/GarnetEventStore.cs`、`src/Aevatar.Foundation.Runtime/Persistence/DeferredEventStoreCompactionScheduler.cs`、`src/Aevatar.Foundation.Runtime/Actor/EventStoreCompactionDeactivationHook.cs`
+
+- 新增文件型 EventStore（本地可运行、带并发版本校验）。
+- 新增 Garnet EventStore（Redis 脚本做原子 append/compaction）。
+- 引入“延迟压缩”：快照后只调度，不阻塞主命令路径；由 actor idle/deactivation 时执行裁剪。
+
+### 3) 重做 Projection 的分层与运行时分发
+
+新增项目（已进 `aevatar.slnx`）：
+
+- `src/Aevatar.CQRS.Projection.Stores.Abstractions`
+- `src/Aevatar.CQRS.Projection.Runtime.Abstractions`
+- `src/Aevatar.CQRS.Projection.Runtime`
+- `src/Aevatar.CQRS.Projection.StateMirror`
+- `src/Aevatar.CQRS.Projection.Providers.Elasticsearch`
+- `src/Aevatar.CQRS.Projection.Providers.InMemory`
+- `src/Aevatar.CQRS.Projection.Providers.Neo4j`
+
+关键点：
+
+- `ProjectionStoreDispatcher<TReadModel,TKey>` 支持一对多写分发（Document + Graph）。
+- Query binding 最多允许一个，避免多读源不一致。
+- 支持写失败补偿接口（compensator）。
+- `StateMirror` 提供通用 `State -> ReadModel` 镜像能力（可忽略/重命名字段）。
+
+### 4) Workflow 投影与 Provider 组合方式重构
+
+核心文件：`src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionLifecycleService.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowExecutionProjectionQueryService.cs`
+
+- Provider 注册下沉到 Host/Extensions 组合层（不是 Workflow.Infrastructure 直接绑定）。
+- 强约束：Document Provider 必须且只能启用一个；Graph Provider 也必须且只能启用一个。
+- 生命周期接口改为 lease 句柄语义，避免 `actorId -> context` 反查式管理。
+- 启动期新增 provider 校验（fail-fast）：`WorkflowReadModelStartupValidationHostedService`。
+
+### 5) Workflow 查询面增强（API + 图查询）
+
+核心文件：`src/workflow/Aevatar.Workflow.Infrastructure/CapabilityApi/ChatQueryEndpoints.cs`、`src/workflow/Aevatar.Workflow.Application/Queries/WorkflowExecutionQueryApplicationService.cs`、`src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionQueryReader.cs`、`src/workflow/Aevatar.Workflow.Projection/ReadModels/WorkflowExecutionReadModel.cs`
+
+- 新增/强化查询端点：`/agents`、`/workflows`、`/actors/{actorId}`、timeline、graph edges、subgraph、graph-enriched。
+- 查询侧可按方向/边类型过滤图关系。
+- `WorkflowExecutionReport` 扩展为可产出图节点/图边的读模型（`IGraphReadModel`）。
+
+### 6) CI 门禁与回归测试体系明显加码
+
+核心文件：`.github/workflows/ci.yml`、`.github/actions/prepare-runner/action.yml`、`tools/ci/architecture_guards.sh`、`tools/ci/event_sourcing_regression.sh`、`tools/ci/projection_provider_e2e_smoke.sh`
+
+- CI 新增/强化多类作业：`fast-gates`、`split-test-guards`、`projection-provider-e2e`、`event-sourcing-regression`、`coverage-quality` 等。
+- 架构守卫新增硬规则：禁止 Workflow.Infrastructure 直接依赖 `Providers.*`、禁止中间层 ID 映射事实态字典、强化 replay 合同测试约束等。
+- 测试侧新增大量契约/集成覆盖（例如 `RoleGAgentReplayContractTests`、`ProjectionProviderE2EIntegrationTests`）。
+
+## 可以先这么理解你老板的设计意图
+
+1. **事实源唯一化**：状态恢复必须依赖事件回放，不走隐式状态捷径。  
+2. **读侧能力插件化**：Document/Graph provider 可替换，但走同一个 runtime 分发主链路。  
+3. **边界再收紧**：Workflow 依赖抽象，不直接耦合 provider 具体实现。  
+4. **治理前置**：把“架构约束”固化成 CI 门禁，不靠口头约定。  
+
+## 建议你优先追问的 10 个问题
+
+1. 生产环境默认推荐的 Document/Graph provider 组合是什么？为什么？
+2. `Projection:Policies:DenyInMemoryGraphFactStore` 在各环境的默认策略怎么定？
+3. Event compaction 的保留窗口（`retainedEventsAfterSnapshot`）如何给基线值？
+4. Workflow 查询接口是否需要鉴权/限流/脱敏（尤其 graph-enriched）？
+5. 现有历史数据从旧读模型迁移到新 provider 绑定的方案是什么？
+6. 若 Neo4j 或 Elasticsearch 不可用，系统降级路径是失败启动还是降级运行？
+7. 新增的 startup fail-fast 会不会影响本地开发体验？是否分环境开关？
+8. 这条分支里“必须先合并”的最小闭环提交范围是哪几部分？
+9. nightly smoke / 压测基线未闭环部分，计划和负责人怎么排？
+10. 这次重构后，后续 feature 开发必须遵循的 3 条硬约束是什么？
+
diff --git a/docs/audit-scorecard/pr13-code-review-2026-02-25.md b/docs/audit-scorecard/pr13-code-review-2026-02-25.md
new file mode 100644
index 000000000..dcaaa35b5
--- /dev/null
+++ b/docs/audit-scorecard/pr13-code-review-2026-02-25.md
@@ -0,0 +1,105 @@
+# PR #13 代码审查报告（2026-02-25）
+
+- 审查日期：2026-02-25
+- 审查对象：`feat/generic-event-sourcing-elasticsearch-readmodel`（相对 `dev`）
+- 关联 PR：[Feat/generic event sourcing elasticsearch readmodel #13](https://github.com/aevatarAI/aevatar/pull/13)
+- 审查方式：源码核查 + 自动化测试 + 架构门禁
+
+---
+
+## 1. 结论
+
+本次审查范围内的 F1-F4 问题均已落地修复，核心链路可用。
+
+- Blocking：0
+- Major：0
+- Medium：1（非阻断优化项）
+
+**合并建议**：可合并。  
+**剩余优化项**：F2 outbox 的 completed 记录建议增加清理/归档策略，降低长期状态体积与扫描开销。
+
+---
+
+## 2. 问题与修复清单
+
+| ID | 问题 | 状态 | 修复摘要 |
+| --- | --- | --- | --- |
+| F1 | ownership 可能长期占用 | 已修复 | 增加 lease TTL、续租与过期接管。 |
+| F2 | 双写失败补偿仅日志，可能读侧不一致 | 已修复 | 改为 actor 化 outbox + 异步 replay + backoff 重试。 |
+| F3 | distributed 配置可能回退 InMemory | 已修复 | 显式 durable provider + Document 侧门禁。 |
+| F4 | 启动校验未覆盖外部可达性 | 已修复 | 启动期改为真实 provider probe，并按环境分级处理失败。 |
+
+---
+
+## 3. 关键修复说明
+
+### F1：Ownership lease 过期与接管
+
+1. 协议增加 `lease_ttl_ms`。
+2. `Acquire` 支持同 session renew 与过期 takeover。
+3. 新增 `ProjectionOwnershipCoordinatorOptions`（默认 TTL=30 分钟，可配置）。
+4. `WorkflowExecutionProjectionOptions` 新增 `ProjectionOwnershipLeaseTtlMs` 并注入 ownership coordinator。
+
+关键代码：
+- `src/Aevatar.CQRS.Projection.Core/projection_ownership_messages.proto`
+- `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs`
+- `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorOptions.cs`
+- `src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs`
+- `src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs`
+
+### F2：双写失败补偿（actor 化 outbox）
+
+1. 补偿上下文扩展为 `DispatchId / OccurredAtUtc / ReadModelType`。
+2. `WorkflowProjectionDurableOutboxCompensator` 在失败时入队补偿事件。
+3. `ActorProjectionDispatchCompensationOutbox` 通过 runtime 将事件投递到 outbox actor。
+4. `WorkflowProjectionDispatchCompensationOutboxGAgent` 维护持久状态并执行 replay。
+5. `WorkflowProjectionDispatchCompensationReplayHostedService` 周期触发 replay，失败 backoff，成功标记 completed。
+
+关键代码：
+- `src/Aevatar.CQRS.Projection.Core/projection_dispatch_compensation_messages.proto`
+- `src/workflow/Aevatar.Workflow.Projection/Orchestration/IProjectionDispatchCompensationOutbox.cs`
+- `src/workflow/Aevatar.Workflow.Projection/Orchestration/ActorProjectionDispatchCompensationOutbox.cs`
+- `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchCompensationOutboxGAgent.cs`
+- `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDurableOutboxCompensator.cs`
+- `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchCompensationReplayHostedService.cs`
+- `src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs`
+
+### F3：distributed durable provider 与门禁
+
+1. `appsettings.Distributed.json` 显式启用 ES/Neo4j，关闭 InMemory。
+2. Document 侧新增 InMemory 门禁，与 Graph 策略对齐。
+
+关键代码：
+- `src/Aevatar.Mainnet.Host.Api/appsettings.Distributed.json`
+- `src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs`
+
+### F4：启动探测升级
+
+1. 启动期改为真实 probe：
+   - Document：`ListAsync(take:1)`
+   - Graph：`ListNodesByOwnerAsync(...)`
+2. 失败策略：
+   - Production：fail-fast
+   - 非 Production：warning 并继续
+
+关键代码：
+- `src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs`
+
+---
+
+## 4. 验证结果
+
+1. `dotnet test test/Aevatar.Workflow.Host.Api.Tests/Aevatar.Workflow.Host.Api.Tests.csproj --nologo`
+   - 结果：Passed（160 passed / 0 failed）
+2. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo`
+   - 结果：Passed（55 passed / 1 skipped / 0 failed）
+3. `bash tools/ci/architecture_guards.sh`
+   - 结果：Passed
+
+---
+
+## 5. 后续优化（非阻断）
+
+1. 为 F2 增加 outbox completed 记录清理/归档策略。
+2. 增加补偿运行指标：backlog、重试次数、重放延迟。
+3. 在 distributed smoke 中增加跨节点补偿收敛断言。
diff --git a/src/Aevatar.CQRS.Projection.Core/Aevatar.CQRS.Projection.Core.csproj b/src/Aevatar.CQRS.Projection.Core/Aevatar.CQRS.Projection.Core.csproj
index 6bf640ca4..7465c9d8d 100644
--- a/src/Aevatar.CQRS.Projection.Core/Aevatar.CQRS.Projection.Core.csproj
+++ b/src/Aevatar.CQRS.Projection.Core/Aevatar.CQRS.Projection.Core.csproj
@@ -21,6 +21,7 @@
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
   </ItemGroup>
   <ItemGroup>
+    <Protobuf Include="projection_dispatch_compensation_messages.proto" GrpcServices="None" />
     <Protobuf Include="projection_ownership_messages.proto" GrpcServices="None" />
     <Protobuf Include="projection_session_event_transport.proto" GrpcServices="None" />
   </ItemGroup>
diff --git a/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs b/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs
index de399d1a1..63313a1a6 100644
--- a/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs
+++ b/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs
@@ -13,11 +13,16 @@ public sealed class ActorProjectionOwnershipCoordinator : IProjectionOwnershipCo
     private const string CoordinatorPublisherId = "projection.ownership.coordinator";
     private readonly IActorRuntime _runtime;
     private readonly IAgentTypeVerifier _agentTypeVerifier;
+    private readonly ProjectionOwnershipCoordinatorOptions _options;
 
-    public ActorProjectionOwnershipCoordinator(IActorRuntime runtime, IAgentTypeVerifier agentTypeVerifier)
+    public ActorProjectionOwnershipCoordinator(
+        IActorRuntime runtime,
+        IAgentTypeVerifier agentTypeVerifier,
+        ProjectionOwnershipCoordinatorOptions? options = null)
     {
         _runtime = runtime;
         _agentTypeVerifier = agentTypeVerifier;
+        _options = options ?? new ProjectionOwnershipCoordinatorOptions();
     }
 
     public async Task AcquireAsync(
@@ -31,6 +36,7 @@ public async Task AcquireAsync(
             {
                 ScopeId = scopeId,
                 SessionId = sessionId,
+                LeaseTtlMs = _options.ResolveLeaseTtlMs(),
             },
             sessionId);
         await coordinatorActor.HandleEventAsync(envelope, ct);
diff --git a/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs
index 87ca11516..f4bc50098 100644
--- a/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs
+++ b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs
@@ -31,13 +31,37 @@ public async Task HandleAcquireAsync(ProjectionOwnershipAcquireEvent evt)
         if (string.IsNullOrWhiteSpace(evt.SessionId))
             throw new InvalidOperationException("Session id is required to acquire projection ownership.");
 
+        var normalizedLeaseTtlMs = ProjectionOwnershipCoordinatorOptions.NormalizeLeaseTtlMs(evt.LeaseTtlMs);
+        var acquireEvent = new ProjectionOwnershipAcquireEvent
+        {
+            ScopeId = evt.ScopeId,
+            SessionId = evt.SessionId,
+            LeaseTtlMs = normalizedLeaseTtlMs,
+        };
+
         if (State.Active)
         {
-            throw new InvalidOperationException(
-                $"Projection ownership for scope '{State.ScopeId}' is already active (session '{State.SessionId}').");
+            if (!string.Equals(State.ScopeId, evt.ScopeId, StringComparison.Ordinal))
+            {
+                throw new InvalidOperationException(
+                    $"Projection ownership coordinator '{Id}' scope mismatch. expected='{State.ScopeId}', actual='{evt.ScopeId}'.");
+            }
+
+            if (string.Equals(State.SessionId, evt.SessionId, StringComparison.Ordinal))
+            {
+                // Same session acquire is treated as lease renewal.
+                await PersistDomainEventAsync(acquireEvent);
+                return;
+            }
+
+            if (!IsOwnershipExpired(State, DateTime.UtcNow))
+            {
+                throw new InvalidOperationException(
+                    $"Projection ownership for scope '{State.ScopeId}' is already active (session '{State.SessionId}').");
+            }
         }
 
-        await PersistDomainEventAsync(evt);
+        await PersistDomainEventAsync(acquireEvent);
     }
 
     [EventHandler]
@@ -83,6 +107,7 @@ private static ProjectionOwnershipCoordinatorState ApplyAcquire(
         next.SessionId = evt.SessionId;
         next.Active = true;
         next.LastUpdatedAtUtc = Timestamp.FromDateTime(DateTime.UtcNow);
+        next.LeaseTtlMs = ProjectionOwnershipCoordinatorOptions.NormalizeLeaseTtlMs(evt.LeaseTtlMs);
         return next;
     }
 
@@ -100,4 +125,26 @@ private static ProjectionOwnershipCoordinatorState ApplyRelease(
         next.LastUpdatedAtUtc = Timestamp.FromDateTime(DateTime.UtcNow);
         return next;
     }
+
+    private static bool IsOwnershipExpired(ProjectionOwnershipCoordinatorState state, DateTime utcNow)
+    {
+        if (!state.Active)
+            return false;
+
+        var lastUpdatedUtc = ResolveLastUpdatedUtc(state.LastUpdatedAtUtc);
+        var leaseTtlMs = ProjectionOwnershipCoordinatorOptions.NormalizeLeaseTtlMs(state.LeaseTtlMs);
+        var leaseDuration = TimeSpan.FromMilliseconds(leaseTtlMs);
+        return utcNow - lastUpdatedUtc >= leaseDuration;
+    }
+
+    private static DateTime ResolveLastUpdatedUtc(Timestamp? timestamp)
+    {
+        if (timestamp == null)
+            return DateTime.UnixEpoch;
+
+        var lastUpdatedUtc = timestamp.ToDateTime();
+        return lastUpdatedUtc.Kind == DateTimeKind.Utc
+            ? lastUpdatedUtc
+            : DateTime.SpecifyKind(lastUpdatedUtc, DateTimeKind.Utc);
+    }
 }
diff --git a/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorOptions.cs b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorOptions.cs
new file mode 100644
index 000000000..68409684f
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorOptions.cs
@@ -0,0 +1,20 @@
+namespace Aevatar.CQRS.Projection.Core.Orchestration;
+
+public sealed class ProjectionOwnershipCoordinatorOptions
+{
+    public const long DefaultLeaseTtlMs = 30L * 60 * 1000;
+    public const long MinimumLeaseTtlMs = 1_000;
+    public const long MaximumLeaseTtlMs = 24L * 60 * 60 * 1000;
+
+    public long LeaseTtlMs { get; set; } = DefaultLeaseTtlMs;
+
+    public long ResolveLeaseTtlMs() => NormalizeLeaseTtlMs(LeaseTtlMs);
+
+    public static long NormalizeLeaseTtlMs(long rawLeaseTtlMs)
+    {
+        if (rawLeaseTtlMs <= 0)
+            return DefaultLeaseTtlMs;
+
+        return Math.Clamp(rawLeaseTtlMs, MinimumLeaseTtlMs, MaximumLeaseTtlMs);
+    }
+}
diff --git a/src/Aevatar.CQRS.Projection.Core/projection_dispatch_compensation_messages.proto b/src/Aevatar.CQRS.Projection.Core/projection_dispatch_compensation_messages.proto
new file mode 100644
index 000000000..8bd5404dd
--- /dev/null
+++ b/src/Aevatar.CQRS.Projection.Core/projection_dispatch_compensation_messages.proto
@@ -0,0 +1,52 @@
+syntax = "proto3";
+
+option csharp_namespace = "Aevatar.CQRS.Projection.Core.Orchestration";
+
+import "google/protobuf/timestamp.proto";
+
+message ProjectionDispatchCompensationOutboxState {
+  map<string, ProjectionDispatchCompensationOutboxEntry> entries = 1;
+}
+
+message ProjectionDispatchCompensationOutboxEntry {
+  string record_id = 1;
+  string operation = 2;
+  string failed_store = 3;
+  repeated string succeeded_stores = 4;
+  string read_model_type = 5;
+  string read_model_json = 6;
+  string key = 7;
+  google.protobuf.Timestamp enqueued_at_utc = 8;
+  google.protobuf.Timestamp next_visible_at_utc = 9;
+  int32 attempt_count = 10;
+  string last_error = 11;
+  google.protobuf.Timestamp completed_at_utc = 12;
+}
+
+message ProjectionCompensationEnqueuedEvent {
+  string record_id = 1;
+  string operation = 2;
+  string failed_store = 3;
+  repeated string succeeded_stores = 4;
+  string read_model_type = 5;
+  string read_model_json = 6;
+  string key = 7;
+  google.protobuf.Timestamp enqueued_at_utc = 8;
+  string last_error = 9;
+}
+
+message ProjectionCompensationRetryScheduledEvent {
+  string record_id = 1;
+  int32 attempt_count = 2;
+  google.protobuf.Timestamp next_visible_at_utc = 3;
+  string error = 4;
+}
+
+message ProjectionCompensationSucceededEvent {
+  string record_id = 1;
+  google.protobuf.Timestamp completed_at_utc = 2;
+}
+
+message ProjectionCompensationTriggerReplayEvent {
+  int32 batch_size = 1;
+}
diff --git a/src/Aevatar.CQRS.Projection.Core/projection_ownership_messages.proto b/src/Aevatar.CQRS.Projection.Core/projection_ownership_messages.proto
index 4ebb4a545..17a87d6e0 100644
--- a/src/Aevatar.CQRS.Projection.Core/projection_ownership_messages.proto
+++ b/src/Aevatar.CQRS.Projection.Core/projection_ownership_messages.proto
@@ -9,11 +9,13 @@ message ProjectionOwnershipCoordinatorState {
   string session_id = 2;
   bool active = 3;
   google.protobuf.Timestamp last_updated_at_utc = 4;
+  int64 lease_ttl_ms = 5;
 }
 
 message ProjectionOwnershipAcquireEvent {
   string scope_id = 1;
   string session_id = 2;
+  int64 lease_ttl_ms = 3;
 }
 
 message ProjectionOwnershipReleaseEvent {
diff --git a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchCompensationContext.cs b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchCompensationContext.cs
index f0e7df9e9..ebcc0178e 100644
--- a/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchCompensationContext.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime.Abstractions/Abstractions/Stores/ProjectionStoreDispatchCompensationContext.cs
@@ -3,6 +3,8 @@ namespace Aevatar.CQRS.Projection.Runtime.Abstractions;
 public sealed class ProjectionStoreDispatchCompensationContext<TReadModel, TKey>
     where TReadModel : class, IProjectionReadModel
 {
+    public string DispatchId { get; init; } = Guid.NewGuid().ToString("N");
+
     public required string Operation { get; init; }
 
     public required string FailedStore { get; init; }
@@ -14,4 +16,9 @@ public sealed class ProjectionStoreDispatchCompensationContext<TReadModel, TKey>
     public required Exception Exception { get; init; }
 
     public TKey? Key { get; init; }
+
+    public string ReadModelType { get; init; } =
+        typeof(TReadModel).FullName ?? typeof(TReadModel).Name;
+
+    public DateTimeOffset OccurredAtUtc { get; init; } = DateTimeOffset.UtcNow;
 }
diff --git a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
index b9bda225f..971dffdc4 100644
--- a/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
+++ b/src/Aevatar.CQRS.Projection.Runtime/Runtime/ProjectionStoreDispatcher.cs
@@ -211,12 +211,15 @@ private Task CompensateAsync(
     {
         var context = new ProjectionStoreDispatchCompensationContext<TReadModel, TKey>
         {
+            DispatchId = Guid.NewGuid().ToString("N"),
             Operation = operation,
             Key = key,
             ReadModel = readModel,
             FailedStore = failedBinding.StoreName,
             SucceededStores = succeededBindings.Select(x => x.StoreName).ToList(),
             Exception = exception,
+            ReadModelType = typeof(TReadModel).FullName ?? typeof(TReadModel).Name,
+            OccurredAtUtc = DateTimeOffset.UtcNow,
         };
         return _compensator.CompensateAsync(context, ct);
     }
diff --git a/src/Aevatar.Mainnet.Host.Api/appsettings.Distributed.json b/src/Aevatar.Mainnet.Host.Api/appsettings.Distributed.json
index 1b452965e..c66bae38c 100644
--- a/src/Aevatar.Mainnet.Host.Api/appsettings.Distributed.json
+++ b/src/Aevatar.Mainnet.Host.Api/appsettings.Distributed.json
@@ -21,5 +21,36 @@
     "GatewayPort": 30000,
     "QueueCount": 8,
     "QueueCacheSize": 4096
+  },
+  "Projection": {
+    "Document": {
+      "Providers": {
+        "Elasticsearch": {
+          "Enabled": true,
+          "Endpoints": [
+            "http://localhost:9200"
+          ]
+        },
+        "InMemory": {
+          "Enabled": false
+        }
+      }
+    },
+    "Graph": {
+      "Providers": {
+        "Neo4j": {
+          "Enabled": true,
+          "Uri": "bolt://localhost:7687"
+        },
+        "InMemory": {
+          "Enabled": false
+        }
+      }
+    },
+    "Policies": {
+      "Environment": "Production",
+      "DenyInMemoryDocumentReadStore": true,
+      "DenyInMemoryGraphFactStore": true
+    }
   }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
index e3cd50ed4..8f33dd242 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Configuration/WorkflowExecutionProjectionOptions.cs
@@ -1,3 +1,5 @@
+using Aevatar.CQRS.Projection.Core.Orchestration;
+
 namespace Aevatar.Workflow.Projection.Configuration;
 
 /// <summary>
@@ -47,4 +49,35 @@ public bool EnableRunQueryEndpoints
     /// Whether to pre-validate graph provider selection and capabilities during host startup.
     /// </summary>
     public bool ValidateGraphProviderOnStartup { get; set; } = true;
+
+    /// <summary>
+    /// Projection ownership lease TTL in milliseconds.
+    /// </summary>
+    public long ProjectionOwnershipLeaseTtlMs { get; set; } =
+        ProjectionOwnershipCoordinatorOptions.DefaultLeaseTtlMs;
+
+    /// <summary>
+    /// Enables durable outbox replay for projection store dispatch compensation.
+    /// </summary>
+    public bool EnableDispatchCompensationReplay { get; set; } = true;
+
+    /// <summary>
+    /// Poll interval for compensation replay worker.
+    /// </summary>
+    public int DispatchCompensationReplayPollIntervalMs { get; set; } = 1000;
+
+    /// <summary>
+    /// Max records replayed in one compensation polling cycle.
+    /// </summary>
+    public int DispatchCompensationReplayBatchSize { get; set; } = 20;
+
+    /// <summary>
+    /// Base retry delay for failed compensation replay.
+    /// </summary>
+    public int DispatchCompensationReplayBaseDelayMs { get; set; } = 1000;
+
+    /// <summary>
+    /// Max retry delay for failed compensation replay.
+    /// </summary>
+    public int DispatchCompensationReplayMaxDelayMs { get; set; } = 60_000;
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
index 91434a162..3e529bf5f 100644
--- a/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/DependencyInjection/ServiceCollectionExtensions.cs
@@ -38,6 +38,8 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
             sp.GetRequiredService<WorkflowExecutionProjectionOptions>());
         services.TryAddSingleton<IEventDeduplicator, PassthroughEventDeduplicator>();
         services.AddProjectionReadModelRuntime();
+        services.TryAddSingleton<IProjectionDispatchCompensationOutbox, ActorProjectionDispatchCompensationOutbox>();
+        services.TryAddSingleton<IProjectionStoreDispatchCompensator<WorkflowExecutionReport, string>, WorkflowProjectionDurableOutboxCompensator>();
         services.TryAddSingleton<IProjectionDocumentMetadataProvider<WorkflowExecutionReport>, WorkflowExecutionReportDocumentMetadataProvider>();
         services.TryAddSingleton<IProjectionClock, SystemProjectionClock>();
         services.TryAddSingleton<IWorkflowExecutionProjectionContextFactory, DefaultWorkflowExecutionProjectionContextFactory>();
@@ -48,6 +50,10 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.TryAddSingleton<IProjectionDispatchFailureReporter<WorkflowExecutionProjectionContext>, WorkflowProjectionDispatchFailureReporter>();
         services.TryAddSingleton<IProjectionSubscriptionRegistry<WorkflowExecutionProjectionContext>, ProjectionSubscriptionRegistry<WorkflowExecutionProjectionContext>>();
         services.TryAddSingleton(typeof(IActorStreamSubscriptionHub<>), typeof(ActorStreamSubscriptionHub<>));
+        services.TryAddSingleton(sp => new ProjectionOwnershipCoordinatorOptions
+        {
+            LeaseTtlMs = sp.GetRequiredService<WorkflowExecutionProjectionOptions>().ProjectionOwnershipLeaseTtlMs,
+        });
         services.TryAddSingleton<IProjectionOwnershipCoordinator, ActorProjectionOwnershipCoordinator>();
         services.TryAddSingleton<IProjectionSessionEventCodec<WorkflowRunEvent>, WorkflowRunEventSessionCodec>();
         services.TryAddSingleton<IProjectionSessionEventHub<WorkflowRunEvent>, ProjectionSessionEventHub<WorkflowRunEvent>>();
@@ -65,6 +71,7 @@ public static IServiceCollection AddWorkflowExecutionProjectionCQRS(
         services.TryAddSingleton<WorkflowExecutionProjectionQueryService>();
         services.TryAddSingleton<IWorkflowExecutionProjectionQueryPort>(sp =>
             sp.GetRequiredService<WorkflowExecutionProjectionQueryService>());
+        services.TryAddEnumerable(ServiceDescriptor.Singleton<IHostedService, WorkflowProjectionDispatchCompensationReplayHostedService>());
         services.TryAddEnumerable(ServiceDescriptor.Singleton<IHostedService, WorkflowReadModelStartupValidationHostedService>());
         return services;
     }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/ActorProjectionDispatchCompensationOutbox.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/ActorProjectionDispatchCompensationOutbox.cs
new file mode 100644
index 000000000..48995e3a9
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/ActorProjectionDispatchCompensationOutbox.cs
@@ -0,0 +1,89 @@
+using Aevatar.CQRS.Projection.Core.Abstractions;
+using Aevatar.CQRS.Projection.Core.Orchestration;
+using Aevatar.Foundation.Abstractions.TypeSystem;
+using Google.Protobuf;
+using Google.Protobuf.WellKnownTypes;
+
+namespace Aevatar.Workflow.Projection.Orchestration;
+
+internal sealed class ActorProjectionDispatchCompensationOutbox : IProjectionDispatchCompensationOutbox
+{
+    private const string OutboxPublisherId = "projection.compensation.outbox";
+    private const string DefaultScopeId = "workflow";
+    private readonly IActorRuntime _runtime;
+    private readonly IAgentTypeVerifier _agentTypeVerifier;
+
+    public ActorProjectionDispatchCompensationOutbox(
+        IActorRuntime runtime,
+        IAgentTypeVerifier agentTypeVerifier)
+    {
+        _runtime = runtime;
+        _agentTypeVerifier = agentTypeVerifier;
+    }
+
+    public async Task EnqueueAsync(
+        ProjectionCompensationEnqueuedEvent evt,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(evt);
+        var actor = await ResolveOutboxActorAsync(ct);
+        var envelope = CreateEnvelope(evt, evt.RecordId);
+        await actor.HandleEventAsync(envelope, ct);
+    }
+
+    public async Task TriggerReplayAsync(
+        int batchSize,
+        CancellationToken ct = default)
+    {
+        var actor = await ResolveOutboxActorAsync(ct);
+        var envelope = CreateEnvelope(
+            new ProjectionCompensationTriggerReplayEvent { BatchSize = batchSize },
+            correlationId: "replay");
+        await actor.HandleEventAsync(envelope, ct);
+    }
+
+    private async Task<IActor> ResolveOutboxActorAsync(CancellationToken ct)
+    {
+        var actorId = WorkflowProjectionDispatchCompensationOutboxGAgent.BuildActorId(DefaultScopeId);
+        var existing = await _runtime.GetAsync(actorId);
+        if (existing != null)
+            return await EnsureActorTypeAsync(existing, actorId, ct);
+
+        try
+        {
+            var created = await _runtime.CreateAsync<WorkflowProjectionDispatchCompensationOutboxGAgent>(actorId, ct);
+            return await EnsureActorTypeAsync(created, actorId, ct);
+        }
+        catch (InvalidOperationException)
+        {
+            var raced = await _runtime.GetAsync(actorId);
+            if (raced != null)
+                return await EnsureActorTypeAsync(raced, actorId, ct);
+
+            throw;
+        }
+    }
+
+    private async Task<IActor> EnsureActorTypeAsync(IActor actor, string actorId, CancellationToken ct)
+    {
+        if (await _agentTypeVerifier.IsExpectedAsync(
+                actorId,
+                typeof(WorkflowProjectionDispatchCompensationOutboxGAgent),
+                ct))
+            return actor;
+
+        throw new InvalidOperationException(
+            $"Actor '{actorId}' is not a projection dispatch compensation outbox actor.");
+    }
+
+    private static EventEnvelope CreateEnvelope(IMessage payload, string correlationId) =>
+        new()
+        {
+            Id = Guid.NewGuid().ToString("N"),
+            Timestamp = Timestamp.FromDateTime(DateTime.UtcNow),
+            Payload = Any.Pack(payload),
+            PublisherId = OutboxPublisherId,
+            Direction = EventDirection.Self,
+            CorrelationId = correlationId,
+        };
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/IProjectionDispatchCompensationOutbox.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IProjectionDispatchCompensationOutbox.cs
new file mode 100644
index 000000000..cfc8213c2
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/IProjectionDispatchCompensationOutbox.cs
@@ -0,0 +1,14 @@
+using Aevatar.CQRS.Projection.Core.Orchestration;
+
+namespace Aevatar.Workflow.Projection.Orchestration;
+
+internal interface IProjectionDispatchCompensationOutbox
+{
+    Task EnqueueAsync(
+        ProjectionCompensationEnqueuedEvent evt,
+        CancellationToken ct = default);
+
+    Task TriggerReplayAsync(
+        int batchSize,
+        CancellationToken ct = default);
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchCompensationOutboxGAgent.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchCompensationOutboxGAgent.cs
new file mode 100644
index 000000000..ca420fe65
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchCompensationOutboxGAgent.cs
@@ -0,0 +1,222 @@
+using System.Text.Json;
+using Aevatar.CQRS.Projection.Core.Orchestration;
+using Aevatar.CQRS.Projection.Runtime.Abstractions;
+using Aevatar.Foundation.Abstractions.Attributes;
+using Aevatar.Foundation.Core;
+using Aevatar.Foundation.Core.EventSourcing;
+using Aevatar.Workflow.Projection.Configuration;
+using Aevatar.Workflow.Projection.ReadModels;
+using Google.Protobuf;
+using Google.Protobuf.WellKnownTypes;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+
+namespace Aevatar.Workflow.Projection.Orchestration;
+
+internal sealed class WorkflowProjectionDispatchCompensationOutboxGAgent
+    : GAgentBase<ProjectionDispatchCompensationOutboxState>
+{
+    public const string ActorIdPrefix = "projection.compensation.outbox";
+
+    private static readonly JsonSerializerOptions JsonOptions = new()
+    {
+        PropertyNameCaseInsensitive = true,
+    };
+
+    public static string BuildActorId(string scopeId)
+    {
+        if (string.IsNullOrWhiteSpace(scopeId))
+            throw new ArgumentException("Scope id is required.", nameof(scopeId));
+
+        return $"{ActorIdPrefix}:{scopeId.Trim()}";
+    }
+
+    [EventHandler]
+    public async Task HandleEnqueueAsync(ProjectionCompensationEnqueuedEvent evt)
+    {
+        ArgumentNullException.ThrowIfNull(evt);
+        if (string.IsNullOrWhiteSpace(evt.RecordId))
+            throw new InvalidOperationException("Record id is required to enqueue compensation.");
+        if (string.IsNullOrWhiteSpace(evt.FailedStore))
+            throw new InvalidOperationException("Failed store is required to enqueue compensation.");
+
+        await PersistDomainEventAsync(evt);
+    }
+
+    [EventHandler]
+    public async Task HandleTriggerReplayAsync(ProjectionCompensationTriggerReplayEvent evt)
+    {
+        ArgumentNullException.ThrowIfNull(evt);
+
+        var utcNow = DateTime.UtcNow;
+        var batchSize = evt.BatchSize > 0 ? evt.BatchSize : 20;
+
+        var dueEntries = State.Entries.Values
+            .Where(e => e.CompletedAtUtc == null && IsVisible(e, utcNow))
+            .OrderBy(e => e.NextVisibleAtUtc?.ToDateTime() ?? DateTime.UnixEpoch)
+            .ThenBy(e => e.EnqueuedAtUtc?.ToDateTime() ?? DateTime.UnixEpoch)
+            .Take(batchSize)
+            .ToList();
+
+        var bindings = Services
+            .GetServices<IProjectionStoreBinding<WorkflowExecutionReport, string>>()
+            .GroupBy(b => b.StoreName, StringComparer.OrdinalIgnoreCase)
+            .ToDictionary(g => g.Key, g => g.Last(), StringComparer.OrdinalIgnoreCase);
+
+        foreach (var entry in dueEntries)
+        {
+            await ReplayEntryAsync(entry, bindings);
+        }
+    }
+
+    protected override ProjectionDispatchCompensationOutboxState TransitionState(
+        ProjectionDispatchCompensationOutboxState current,
+        IMessage evt) =>
+        StateTransitionMatcher
+            .Match(current, evt)
+            .On<ProjectionCompensationEnqueuedEvent>(ApplyEnqueued)
+            .On<ProjectionCompensationRetryScheduledEvent>(ApplyRetryScheduled)
+            .On<ProjectionCompensationSucceededEvent>(ApplySucceeded)
+            .OrCurrent();
+
+    private static ProjectionDispatchCompensationOutboxState ApplyEnqueued(
+        ProjectionDispatchCompensationOutboxState current,
+        ProjectionCompensationEnqueuedEvent evt)
+    {
+        var next = current.Clone();
+        next.Entries[evt.RecordId] = new ProjectionDispatchCompensationOutboxEntry
+        {
+            RecordId = evt.RecordId,
+            Operation = evt.Operation,
+            FailedStore = evt.FailedStore,
+            SucceededStores = { evt.SucceededStores },
+            ReadModelType = evt.ReadModelType,
+            ReadModelJson = evt.ReadModelJson,
+            Key = evt.Key,
+            EnqueuedAtUtc = evt.EnqueuedAtUtc,
+            NextVisibleAtUtc = evt.EnqueuedAtUtc,
+            AttemptCount = 0,
+            LastError = evt.LastError,
+        };
+        return next;
+    }
+
+    private static ProjectionDispatchCompensationOutboxState ApplyRetryScheduled(
+        ProjectionDispatchCompensationOutboxState current,
+        ProjectionCompensationRetryScheduledEvent evt)
+    {
+        var next = current.Clone();
+        if (!next.Entries.TryGetValue(evt.RecordId, out var existing))
+            return next;
+
+        var updated = existing.Clone();
+        updated.AttemptCount = Math.Max(1, evt.AttemptCount);
+        updated.NextVisibleAtUtc = evt.NextVisibleAtUtc;
+        updated.LastError = evt.Error;
+        next.Entries[evt.RecordId] = updated;
+        return next;
+    }
+
+    private static ProjectionDispatchCompensationOutboxState ApplySucceeded(
+        ProjectionDispatchCompensationOutboxState current,
+        ProjectionCompensationSucceededEvent evt)
+    {
+        var next = current.Clone();
+        if (!next.Entries.TryGetValue(evt.RecordId, out var existing))
+            return next;
+
+        var updated = existing.Clone();
+        updated.CompletedAtUtc = evt.CompletedAtUtc;
+        next.Entries[evt.RecordId] = updated;
+        return next;
+    }
+
+    private async Task ReplayEntryAsync(
+        ProjectionDispatchCompensationOutboxEntry entry,
+        IReadOnlyDictionary<string, IProjectionStoreBinding<WorkflowExecutionReport, string>> bindings)
+    {
+        if (!bindings.TryGetValue(entry.FailedStore, out var binding))
+        {
+            await ScheduleRetryAsync(
+                entry,
+                new InvalidOperationException(
+                    $"Compensation replay binding '{entry.FailedStore}' is not registered."));
+            return;
+        }
+
+        WorkflowExecutionReport? readModel;
+        try
+        {
+            readModel = JsonSerializer.Deserialize<WorkflowExecutionReport>(entry.ReadModelJson, JsonOptions);
+        }
+        catch (Exception ex)
+        {
+            await ScheduleRetryAsync(entry, ex);
+            return;
+        }
+
+        if (readModel == null)
+        {
+            await ScheduleRetryAsync(
+                entry,
+                new InvalidOperationException(
+                    $"Compensation replay deserialized null read model for record '{entry.RecordId}'."));
+            return;
+        }
+
+        try
+        {
+            await binding.UpsertAsync(readModel);
+            await PersistDomainEventAsync(new ProjectionCompensationSucceededEvent
+            {
+                RecordId = entry.RecordId,
+                CompletedAtUtc = Timestamp.FromDateTime(DateTime.UtcNow),
+            });
+        }
+        catch (Exception ex)
+        {
+            await ScheduleRetryAsync(entry, ex);
+        }
+    }
+
+    private async Task ScheduleRetryAsync(
+        ProjectionDispatchCompensationOutboxEntry entry,
+        Exception exception)
+    {
+        var nextAttempt = entry.AttemptCount + 1;
+        var delay = ComputeRetryDelay(nextAttempt);
+        var nextVisibleAt = DateTime.UtcNow + delay;
+        await PersistDomainEventAsync(new ProjectionCompensationRetryScheduledEvent
+        {
+            RecordId = entry.RecordId,
+            AttemptCount = nextAttempt,
+            NextVisibleAtUtc = Timestamp.FromDateTime(nextVisibleAt),
+            Error = $"{exception.GetType().Name}: {exception.Message}",
+        });
+    }
+
+    private TimeSpan ComputeRetryDelay(int attempt)
+    {
+        var options = Services.GetService<WorkflowExecutionProjectionOptions>();
+        var baseDelayMs = Math.Max(0, options?.DispatchCompensationReplayBaseDelayMs ?? 1000);
+        var maxDelayMs = Math.Max(baseDelayMs, options?.DispatchCompensationReplayMaxDelayMs ?? 60_000);
+        if (baseDelayMs == 0)
+            return TimeSpan.Zero;
+
+        var exponent = Math.Min(10, Math.Max(0, attempt - 1));
+        var nextDelay = (long)Math.Round(baseDelayMs * Math.Pow(2, exponent), MidpointRounding.AwayFromZero);
+        return TimeSpan.FromMilliseconds(Math.Min(nextDelay, maxDelayMs));
+    }
+
+    private static bool IsVisible(ProjectionDispatchCompensationOutboxEntry entry, DateTime utcNow)
+    {
+        if (entry.NextVisibleAtUtc == null)
+            return true;
+
+        var nextVisible = entry.NextVisibleAtUtc.ToDateTime();
+        if (nextVisible.Kind != DateTimeKind.Utc)
+            nextVisible = DateTime.SpecifyKind(nextVisible, DateTimeKind.Utc);
+
+        return utcNow >= nextVisible;
+    }
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchCompensationReplayHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchCompensationReplayHostedService.cs
new file mode 100644
index 000000000..4ffa2a32d
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDispatchCompensationReplayHostedService.cs
@@ -0,0 +1,95 @@
+using Aevatar.Workflow.Projection.Configuration;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.Workflow.Projection.Orchestration;
+
+internal sealed class WorkflowProjectionDispatchCompensationReplayHostedService
+    : IHostedService,
+      IDisposable
+{
+    private readonly IProjectionDispatchCompensationOutbox _outbox;
+    private readonly WorkflowExecutionProjectionOptions _options;
+    private readonly ILogger<WorkflowProjectionDispatchCompensationReplayHostedService> _logger;
+    private CancellationTokenSource? _stoppingCts;
+    private Task? _runTask;
+
+    public WorkflowProjectionDispatchCompensationReplayHostedService(
+        IProjectionDispatchCompensationOutbox outbox,
+        WorkflowExecutionProjectionOptions options,
+        ILogger<WorkflowProjectionDispatchCompensationReplayHostedService>? logger = null)
+    {
+        _outbox = outbox;
+        _options = options;
+        _logger = logger ?? NullLogger<WorkflowProjectionDispatchCompensationReplayHostedService>.Instance;
+    }
+
+    public Task StartAsync(CancellationToken cancellationToken)
+    {
+        if (!_options.Enabled || !_options.EnableDispatchCompensationReplay)
+            return Task.CompletedTask;
+
+        _stoppingCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
+        _runTask = Task.Run(() => RunAsync(_stoppingCts.Token), CancellationToken.None);
+        return Task.CompletedTask;
+    }
+
+    public async Task StopAsync(CancellationToken cancellationToken)
+    {
+        if (_runTask == null || _stoppingCts == null)
+            return;
+
+        _stoppingCts.Cancel();
+        var completed = await Task.WhenAny(
+            _runTask,
+            Task.Delay(Timeout.InfiniteTimeSpan, cancellationToken));
+        if (!ReferenceEquals(completed, _runTask))
+            throw new OperationCanceledException(cancellationToken);
+
+        await _runTask;
+    }
+
+    public void Dispose()
+    {
+        _stoppingCts?.Dispose();
+    }
+
+    internal async Task ReplayOnceAsync(CancellationToken ct = default)
+    {
+        ct.ThrowIfCancellationRequested();
+        await _outbox.TriggerReplayAsync(_options.DispatchCompensationReplayBatchSize, ct);
+    }
+
+    private async Task RunAsync(CancellationToken ct)
+    {
+        var pollIntervalMs = Math.Max(50, _options.DispatchCompensationReplayPollIntervalMs);
+        while (!ct.IsCancellationRequested)
+        {
+            try
+            {
+                await ReplayOnceAsync(ct);
+            }
+            catch (OperationCanceledException) when (ct.IsCancellationRequested)
+            {
+                break;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(
+                    ex,
+                    "Projection compensation replay trigger failed. worker={Worker}",
+                    nameof(WorkflowProjectionDispatchCompensationReplayHostedService));
+            }
+
+            try
+            {
+                await Task.Delay(pollIntervalMs, ct);
+            }
+            catch (OperationCanceledException) when (ct.IsCancellationRequested)
+            {
+                break;
+            }
+        }
+    }
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDurableOutboxCompensator.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDurableOutboxCompensator.cs
new file mode 100644
index 000000000..3cac0b228
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowProjectionDurableOutboxCompensator.cs
@@ -0,0 +1,62 @@
+using System.Text.Json;
+using Aevatar.CQRS.Projection.Core.Orchestration;
+using Aevatar.CQRS.Projection.Runtime.Abstractions;
+using Google.Protobuf.WellKnownTypes;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Aevatar.Workflow.Projection.Orchestration;
+
+internal sealed class WorkflowProjectionDurableOutboxCompensator
+    : IProjectionStoreDispatchCompensator<WorkflowExecutionReport, string>
+{
+    private readonly IProjectionDispatchCompensationOutbox _outbox;
+    private readonly ILogger<WorkflowProjectionDurableOutboxCompensator> _logger;
+    private static readonly JsonSerializerOptions JsonOptions = new()
+    {
+        PropertyNameCaseInsensitive = true,
+    };
+
+    public WorkflowProjectionDurableOutboxCompensator(
+        IProjectionDispatchCompensationOutbox outbox,
+        ILogger<WorkflowProjectionDurableOutboxCompensator>? logger = null)
+    {
+        _outbox = outbox;
+        _logger = logger ?? NullLogger<WorkflowProjectionDurableOutboxCompensator>.Instance;
+    }
+
+    public async Task CompensateAsync(
+        ProjectionStoreDispatchCompensationContext<WorkflowExecutionReport, string> context,
+        CancellationToken ct = default)
+    {
+        ArgumentNullException.ThrowIfNull(context);
+        ct.ThrowIfCancellationRequested();
+
+        var now = DateTime.UtcNow;
+        var recordId = string.IsNullOrWhiteSpace(context.DispatchId)
+            ? Guid.NewGuid().ToString("N")
+            : context.DispatchId;
+
+        var evt = new ProjectionCompensationEnqueuedEvent
+        {
+            RecordId = recordId,
+            Operation = context.Operation,
+            FailedStore = context.FailedStore,
+            SucceededStores = { context.SucceededStores },
+            ReadModelType = context.ReadModelType,
+            ReadModelJson = JsonSerializer.Serialize(context.ReadModel, JsonOptions),
+            Key = context.Key ?? string.Empty,
+            EnqueuedAtUtc = Timestamp.FromDateTime(now),
+            LastError = context.Exception.GetType().Name,
+        };
+
+        await _outbox.EnqueueAsync(evt, ct);
+        _logger.LogWarning(
+            context.Exception,
+            "Projection dispatch failure enqueued to actor-based compensation outbox. readModelType={ReadModelType} operation={Operation} failedStore={FailedStore} recordId={RecordId}",
+            context.ReadModelType,
+            context.Operation,
+            context.FailedStore,
+            recordId);
+    }
+}
diff --git a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
index 5a4cd38f6..cf0daaec9 100644
--- a/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
+++ b/src/workflow/Aevatar.Workflow.Projection/Orchestration/WorkflowReadModelStartupValidationHostedService.cs
@@ -24,28 +24,49 @@ public WorkflowReadModelStartupValidationHostedService(
         _logger = logger ?? NullLogger<WorkflowReadModelStartupValidationHostedService>.Instance;
     }
 
-    public Task StartAsync(CancellationToken cancellationToken)
+    public async Task StartAsync(CancellationToken cancellationToken)
     {
         cancellationToken.ThrowIfCancellationRequested();
         if (!_options.Enabled)
-            return Task.CompletedTask;
+            return;
+
+        var production = IsProductionEnvironment();
 
         if (_options.ValidateDocumentProviderOnStartup)
         {
-            _ = _serviceProvider.GetRequiredService<IProjectionDocumentStore<WorkflowExecutionReport, string>>();
-            _logger.LogInformation(
-                "Workflow read-model document startup validation passed. readModelType={ReadModelType}",
-                typeof(WorkflowExecutionReport).FullName);
+            try
+            {
+                var documentStore = _serviceProvider.GetRequiredService<IProjectionDocumentStore<WorkflowExecutionReport, string>>();
+                _ = await documentStore.ListAsync(take: 1, cancellationToken);
+                _logger.LogInformation(
+                    "Workflow read-model document startup probe passed. readModelType={ReadModelType}",
+                    typeof(WorkflowExecutionReport).FullName);
+            }
+            catch (Exception ex)
+            {
+                HandleProbeFailure("document", ex, production);
+            }
         }
 
         if (_options.ValidateGraphProviderOnStartup)
         {
-            _ = _serviceProvider.GetRequiredService<IProjectionGraphStore>();
-            _logger.LogInformation(
-                "Workflow read-model graph startup validation passed. graphType={GraphType}",
-                typeof(ProjectionGraphNode).FullName);
+            try
+            {
+                var graphStore = _serviceProvider.GetRequiredService<IProjectionGraphStore>();
+                _ = await graphStore.ListNodesByOwnerAsync(
+                    scope: WorkflowExecutionGraphConstants.Scope,
+                    ownerId: "startup-probe",
+                    take: 1,
+                    ct: cancellationToken);
+                _logger.LogInformation(
+                    "Workflow read-model graph startup probe passed. graphType={GraphType}",
+                    typeof(ProjectionGraphNode).FullName);
+            }
+            catch (Exception ex)
+            {
+                HandleProbeFailure("graph", ex, production);
+            }
         }
-        return Task.CompletedTask;
     }
 
     public Task StopAsync(CancellationToken cancellationToken)
@@ -53,4 +74,29 @@ public Task StopAsync(CancellationToken cancellationToken)
         cancellationToken.ThrowIfCancellationRequested();
         return Task.CompletedTask;
     }
+
+    private void HandleProbeFailure(string provider, Exception exception, bool production)
+    {
+        if (production)
+        {
+            throw new InvalidOperationException(
+                $"Workflow read-model {provider} startup probe failed in production environment.",
+                exception);
+        }
+
+        _logger.LogWarning(
+            exception,
+            "Workflow read-model {Provider} startup probe failed in non-production environment and will be ignored.",
+            provider);
+    }
+
+    private static bool IsProductionEnvironment()
+    {
+        var dotnetEnvironment = Environment.GetEnvironmentVariable("DOTNET_ENVIRONMENT");
+        if (string.Equals(dotnetEnvironment, Environments.Production, StringComparison.OrdinalIgnoreCase))
+            return true;
+
+        var aspnetEnvironment = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
+        return string.Equals(aspnetEnvironment, Environments.Production, StringComparison.OrdinalIgnoreCase);
+    }
 }
diff --git a/src/workflow/Aevatar.Workflow.Projection/Properties/InternalsVisibleTo.cs b/src/workflow/Aevatar.Workflow.Projection/Properties/InternalsVisibleTo.cs
new file mode 100644
index 000000000..b6bda1783
--- /dev/null
+++ b/src/workflow/Aevatar.Workflow.Projection/Properties/InternalsVisibleTo.cs
@@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("Aevatar.Workflow.Host.Api.Tests")]
diff --git a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
index a55179d4a..5c3bdce56 100644
--- a/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
+++ b/src/workflow/extensions/Aevatar.Workflow.Extensions.Hosting/WorkflowProjectionProviderServiceCollectionExtensions.cs
@@ -35,6 +35,7 @@ public static IServiceCollection AddWorkflowProjectionReadModelProviders(
             configuration["Projection:Graph:Providers:InMemory:Enabled"],
             fallbackValue: !enableNeo4jGraph);
 
+        EnforceDocumentProviderPolicy(configuration, enableInMemoryDocument);
         EnforceGraphProviderPolicy(configuration, enableInMemoryGraph);
 
         var documentProviderCount = (enableElasticsearchDocument ? 1 : 0) + (enableInMemoryDocument ? 1 : 0);
@@ -165,6 +166,24 @@ private static void EnforceGraphProviderPolicy(
         }
     }
 
+    private static void EnforceDocumentProviderPolicy(
+        IConfiguration configuration,
+        bool enableInMemoryDocumentProvider)
+    {
+        var denyInMemoryDocumentProvider = ResolveOptionalBool(
+            configuration["Projection:Policies:DenyInMemoryDocumentReadStore"],
+            fallbackValue: false);
+        var environment = ResolveRuntimeEnvironment(configuration["Projection:Policies:Environment"]);
+        var production = IsProductionEnvironment(environment);
+
+        if ((denyInMemoryDocumentProvider || production) && enableInMemoryDocumentProvider)
+        {
+            throw new InvalidOperationException(
+                "InMemory document provider is not allowed by projection policy. " +
+                "Disable Projection:Document:Providers:InMemory:Enabled and configure Elasticsearch.");
+        }
+    }
+
     private static string ResolveRuntimeEnvironment(string? configuredEnvironment)
     {
         if (!string.IsNullOrWhiteSpace(configuredEnvironment))
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
index 0b88944bf..ca9ce7f79 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
@@ -31,10 +31,33 @@ public async Task AcquireAsync_ShouldCreateCoordinatorActor_AndDispatchAcquireEv
         var evt = envelope.Payload.Unpack<ProjectionOwnershipAcquireEvent>();
         evt.ScopeId.Should().Be("scope-1");
         evt.SessionId.Should().Be("session-1");
+        evt.LeaseTtlMs.Should().Be(ProjectionOwnershipCoordinatorOptions.DefaultLeaseTtlMs);
         envelope.CorrelationId.Should().Be("session-1");
         envelope.Direction.Should().Be(EventDirection.Self);
     }
 
+    [Fact]
+    public async Task AcquireAsync_ShouldUseConfiguredLeaseTtl()
+    {
+        var runtime = new OwnershipCoordinatorRuntime();
+        var manifestStore = new TestAgentManifestStore();
+        var coordinator = CreateCoordinator(
+            runtime,
+            manifestStore,
+            new ProjectionOwnershipCoordinatorOptions
+            {
+                LeaseTtlMs = 45_000,
+            });
+
+        await coordinator.AcquireAsync("scope-1", "session-1", CancellationToken.None);
+
+        var actorId = ProjectionOwnershipCoordinatorGAgent.BuildActorId("scope-1");
+        var actor = runtime.GetOwnershipActor(actorId);
+        var envelope = actor.HandledEnvelopes.Single();
+        var evt = envelope.Payload.Unpack<ProjectionOwnershipAcquireEvent>();
+        evt.LeaseTtlMs.Should().Be(45_000);
+    }
+
     [Fact]
     public async Task ReleaseAsync_ShouldReuseExistingCoordinatorActor()
     {
@@ -126,10 +149,11 @@ public async Task AcquireAsync_ShouldThrow_WhenManifestTypeNameOnlyLooksSimilar(
 
     private static ActorProjectionOwnershipCoordinator CreateCoordinator(
         IActorRuntime runtime,
-        IAgentManifestStore manifestStore)
+        IAgentManifestStore manifestStore,
+        ProjectionOwnershipCoordinatorOptions? options = null)
     {
         var verifier = new DefaultAgentTypeVerifier(new RuntimeActorTypeProbe(runtime), manifestStore);
-        return new ActorProjectionOwnershipCoordinator(runtime, verifier);
+        return new ActorProjectionOwnershipCoordinator(runtime, verifier, options);
     }
 }
 
@@ -170,6 +194,7 @@ await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         agent.State.ScopeId.Should().Be("scope-1");
         agent.State.SessionId.Should().Be("session-1");
         agent.State.LastUpdatedAtUtc.Should().NotBeNull();
+        agent.State.LeaseTtlMs.Should().Be(ProjectionOwnershipCoordinatorOptions.DefaultLeaseTtlMs);
     }
 
     [Fact]
@@ -191,6 +216,56 @@ await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         await act.Should().ThrowAsync<InvalidOperationException>();
     }
 
+    [Fact]
+    public async Task HandleAcquireAsync_ShouldRenewLease_WhenSessionMatches()
+    {
+        var agent = CreateStatefulAgent(CreateStatefulAgentServices());
+        await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
+        {
+            ScopeId = "scope-1",
+            SessionId = "session-1",
+            LeaseTtlMs = 30_000,
+        });
+        var firstUpdatedAt = agent.State.LastUpdatedAtUtc;
+
+        await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
+        {
+            ScopeId = "scope-1",
+            SessionId = "session-1",
+            LeaseTtlMs = 90_000,
+        });
+
+        agent.State.Active.Should().BeTrue();
+        agent.State.SessionId.Should().Be("session-1");
+        agent.State.LeaseTtlMs.Should().Be(90_000);
+        agent.State.LastUpdatedAtUtc.Should().NotBeNull();
+        agent.State.LastUpdatedAtUtc.Seconds.Should().BeGreaterThanOrEqualTo(firstUpdatedAt.Seconds);
+    }
+
+    [Fact]
+    public async Task HandleAcquireAsync_ShouldAllowTakeover_WhenExistingLeaseExpired()
+    {
+        var agent = CreateStatefulAgent(CreateStatefulAgentServices());
+        await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
+        {
+            ScopeId = "scope-1",
+            SessionId = "session-1",
+            LeaseTtlMs = 1_000,
+        });
+        agent.State.LastUpdatedAtUtc = Google.Protobuf.WellKnownTypes.Timestamp.FromDateTime(DateTime.UtcNow.AddMinutes(-5));
+
+        await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
+        {
+            ScopeId = "scope-1",
+            SessionId = "session-2",
+            LeaseTtlMs = 120_000,
+        });
+
+        agent.State.Active.Should().BeTrue();
+        agent.State.SessionId.Should().Be("session-2");
+        agent.State.LeaseTtlMs.Should().Be(120_000);
+    }
+
     [Fact]
     public async Task HandleReleaseAsync_ShouldDeactivate_WhenScopeAndSessionMatch()
     {
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipProtoCoverageTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipProtoCoverageTests.cs
index c89788023..962e9c3c5 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipProtoCoverageTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipProtoCoverageTests.cs
@@ -17,6 +17,7 @@ public void ProjectionOwnershipMessages_ShouldRoundTripCloneMergeAndReflect()
             SessionId = "session-1",
             Active = true,
             LastUpdatedAtUtc = Timestamp.FromDateTime(DateTime.UtcNow),
+            LeaseTtlMs = 30L * 60 * 1000,
         };
 
         var stateParsed = ProjectionOwnershipCoordinatorState.Parser.ParseFrom(state.ToByteArray());
@@ -37,6 +38,7 @@ public void ProjectionOwnershipMessages_ShouldRoundTripCloneMergeAndReflect()
         {
             ScopeId = "scope-1",
             SessionId = "session-1",
+            LeaseTtlMs = 30L * 60 * 1000,
         };
         var acquireParsed = ProjectionOwnershipAcquireEvent.Parser.ParseFrom(acquire.ToByteArray());
         acquireParsed.Should().BeEquivalentTo(acquire);
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
index 6f6db1ad5..5edee8844 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowExecutionProjectionRegistrationTests.cs
@@ -3,6 +3,10 @@
 using Aevatar.CQRS.Projection.Providers.Elasticsearch.DependencyInjection;
 using Aevatar.CQRS.Projection.Providers.InMemory.DependencyInjection;
 using Aevatar.CQRS.Projection.Stores.Abstractions;
+using Aevatar.Foundation.Abstractions;
+using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Abstractions.TypeSystem;
+using Aevatar.Foundation.Runtime.Persistence;
 using Aevatar.Workflow.Projection.DependencyInjection;
 using Aevatar.Workflow.Projection.ReadModels;
 using FluentAssertions;
@@ -16,20 +20,23 @@ public class WorkflowExecutionProjectionRegistrationTests
     [Fact]
     public async Task AddWorkflowExecutionProjectionCQRS_WhenNoProvidersRegistered_ShouldFailFast()
     {
+        using var env = new EnvironmentVariableScope("DOTNET_ENVIRONMENT", "Production");
         var services = new ServiceCollection();
+        RegisterEventStore(services);
         services.AddWorkflowExecutionProjectionCQRS();
 
         await using var provider = services.BuildServiceProvider();
         Func<Task> act = () => StartHostedServicesAsync(provider);
 
         await act.Should().ThrowAsync<InvalidOperationException>()
-            .WithMessage("*IProjectionDocumentStore*");
+            .WithMessage("*document startup probe failed in production environment*");
     }
 
     [Fact]
     public async Task AddWorkflowExecutionProjectionCQRS_ShouldResolveDispatcherAndStores()
     {
         var services = new ServiceCollection();
+        RegisterEventStore(services);
         RegisterInMemoryProviders(services);
         services.AddWorkflowExecutionProjectionCQRS();
 
@@ -50,6 +57,7 @@ public async Task AddWorkflowExecutionProjectionCQRS_ShouldResolveDispatcherAndS
     public void AddWorkflowExecutionProjectionCQRS_WhenGraphProviderMissing_ShouldThrowOnGraphStoreResolution()
     {
         var services = new ServiceCollection();
+        RegisterEventStore(services);
         RegisterElasticsearchDocumentProvider(services);
         services.AddWorkflowExecutionProjectionCQRS();
 
@@ -92,4 +100,57 @@ private static async Task StartHostedServicesAsync(IServiceProvider provider)
         foreach (var hostedService in hostedServices)
             await hostedService.StartAsync(CancellationToken.None);
     }
+
+    private static void RegisterEventStore(IServiceCollection services)
+    {
+        services.AddSingleton<IEventStore, InMemoryEventStore>();
+        services.AddSingleton<IActorRuntime, NoOpActorRuntime>();
+        services.AddSingleton<IAgentTypeVerifier, AlwaysTrueTypeVerifier>();
+    }
+
+    private sealed class NoOpActorRuntime : IActorRuntime
+    {
+        public Task<IActor> CreateAsync<TAgent>(string? id = null, CancellationToken ct = default)
+            where TAgent : IAgent =>
+            throw new NotSupportedException("No-op runtime.");
+
+        public Task<IActor> CreateAsync(Type agentType, string? id = null, CancellationToken ct = default) =>
+            throw new NotSupportedException("No-op runtime.");
+
+        public Task DestroyAsync(string id, CancellationToken ct = default) => Task.CompletedTask;
+
+        public Task<IActor?> GetAsync(string id) => Task.FromResult<IActor?>(null);
+
+        public Task<bool> ExistsAsync(string id) => Task.FromResult(false);
+
+        public Task LinkAsync(string parentId, string childId, CancellationToken ct = default) => Task.CompletedTask;
+
+        public Task UnlinkAsync(string childId, CancellationToken ct = default) => Task.CompletedTask;
+
+        public Task RestoreAllAsync(CancellationToken ct = default) => Task.CompletedTask;
+    }
+
+    private sealed class AlwaysTrueTypeVerifier : IAgentTypeVerifier
+    {
+        public Task<bool> IsExpectedAsync(string actorId, Type expectedType, CancellationToken ct = default) =>
+            Task.FromResult(true);
+    }
+
+    private sealed class EnvironmentVariableScope : IDisposable
+    {
+        private readonly string _name;
+        private readonly string? _previous;
+
+        public EnvironmentVariableScope(string name, string? value)
+        {
+            _name = name;
+            _previous = Environment.GetEnvironmentVariable(name);
+            Environment.SetEnvironmentVariable(name, value);
+        }
+
+        public void Dispose()
+        {
+            Environment.SetEnvironmentVariable(_name, _previous);
+        }
+    }
 }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
index 02e405045..435390c81 100644
--- a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowHostingExtensionsCoverageTests.cs
@@ -180,4 +180,26 @@ public void AddWorkflowProjectionReadModelProviders_WhenPolicyDeniesInMemoryRela
         act.Should().Throw<InvalidOperationException>()
             .WithMessage("*InMemory graph provider is not allowed*");
     }
+
+    [Fact]
+    public void AddWorkflowProjectionReadModelProviders_WhenProductionAndInMemoryDocumentEnabled_ShouldThrow()
+    {
+        var services = new ServiceCollection();
+        var configuration = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string, string?>
+            {
+                ["Projection:Policies:Environment"] = "Production",
+                ["Projection:Document:Providers:InMemory:Enabled"] = "true",
+                ["Projection:Document:Providers:Elasticsearch:Enabled"] = "false",
+                ["Projection:Graph:Providers:InMemory:Enabled"] = "false",
+                ["Projection:Graph:Providers:Neo4j:Enabled"] = "true",
+                ["Projection:Graph:Providers:Neo4j:Uri"] = "bolt://localhost:7687",
+            })
+            .Build();
+
+        Action act = () => services.AddWorkflowProjectionReadModelProviders(configuration);
+
+        act.Should().Throw<InvalidOperationException>()
+            .WithMessage("*InMemory document provider is not allowed*");
+    }
 }
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionDispatchCompensationTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionDispatchCompensationTests.cs
new file mode 100644
index 000000000..f8b9b0cac
--- /dev/null
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowProjectionDispatchCompensationTests.cs
@@ -0,0 +1,283 @@
+using Aevatar.CQRS.Projection.Core.Orchestration;
+using Aevatar.CQRS.Projection.Runtime.Abstractions;
+using Aevatar.Foundation.Abstractions.Persistence;
+using Aevatar.Foundation.Core.EventSourcing;
+using Aevatar.Foundation.Runtime.Persistence;
+using Aevatar.Workflow.Projection.Configuration;
+using Aevatar.Workflow.Projection.Orchestration;
+using Aevatar.Workflow.Projection.ReadModels;
+using FluentAssertions;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.Workflow.Host.Api.Tests;
+
+public class WorkflowProjectionDispatchCompensationOutboxGAgentTests
+{
+    private static IServiceProvider CreateAgentServices(
+        IEventStore? eventStore = null,
+        IEnumerable<IProjectionStoreBinding<WorkflowExecutionReport, string>>? bindings = null,
+        WorkflowExecutionProjectionOptions? options = null)
+    {
+        var services = new ServiceCollection();
+        services.AddSingleton(eventStore ?? new InMemoryEventStore());
+        services.AddSingleton<EventSourcingRuntimeOptions>();
+        services.AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>));
+        services.AddSingleton(options ?? new WorkflowExecutionProjectionOptions
+        {
+            DispatchCompensationReplayBaseDelayMs = 0,
+            DispatchCompensationReplayMaxDelayMs = 0,
+        });
+        foreach (var binding in bindings ?? [])
+            services.AddSingleton(binding);
+
+        return services.BuildServiceProvider();
+    }
+
+    private static WorkflowProjectionDispatchCompensationOutboxGAgent CreateAgent(IServiceProvider services) =>
+        new()
+        {
+            Services = services,
+            EventSourcingBehaviorFactory =
+                services.GetRequiredService<IEventSourcingBehaviorFactory<ProjectionDispatchCompensationOutboxState>>(),
+        };
+
+    [Fact]
+    public async Task HandleEnqueue_ShouldAddEntryToState()
+    {
+        var agent = CreateAgent(CreateAgentServices());
+
+        await agent.HandleEnqueueAsync(new ProjectionCompensationEnqueuedEvent
+        {
+            RecordId = "r1",
+            Operation = "mutate",
+            FailedStore = "Graph",
+            SucceededStores = { "Document" },
+            ReadModelType = typeof(WorkflowExecutionReport).FullName!,
+            ReadModelJson = "{}",
+            Key = "root-1",
+            LastError = "InvalidOperationException",
+        });
+
+        agent.State.Entries.Should().ContainKey("r1");
+        var entry = agent.State.Entries["r1"];
+        entry.FailedStore.Should().Be("Graph");
+        entry.Operation.Should().Be("mutate");
+        entry.AttemptCount.Should().Be(0);
+        entry.CompletedAtUtc.Should().BeNull();
+    }
+
+    [Fact]
+    public async Task HandleEnqueue_ShouldThrow_WhenRecordIdMissing()
+    {
+        var agent = CreateAgent(CreateAgentServices());
+
+        Func<Task> act = () => agent.HandleEnqueueAsync(new ProjectionCompensationEnqueuedEvent
+        {
+            FailedStore = "Graph",
+        });
+
+        await act.Should().ThrowAsync<InvalidOperationException>();
+    }
+
+    [Fact]
+    public async Task HandleTriggerReplay_WithSuccessfulBinding_ShouldMarkSucceeded()
+    {
+        var binding = new FlakyGraphBinding(failuresBeforeSuccess: 0);
+        var services = CreateAgentServices(bindings: [binding]);
+        var agent = CreateAgent(services);
+
+        await agent.HandleEnqueueAsync(CreateEnqueueEvent("r1", "{}"));
+        await agent.HandleTriggerReplayAsync(new ProjectionCompensationTriggerReplayEvent { BatchSize = 10 });
+
+        agent.State.Entries["r1"].CompletedAtUtc.Should().NotBeNull();
+        binding.AttemptCount.Should().Be(1);
+        binding.SuccessCount.Should().Be(1);
+    }
+
+    [Fact]
+    public async Task HandleTriggerReplay_WithFlakyBinding_ShouldRetryThenSucceed()
+    {
+        var binding = new FlakyGraphBinding(failuresBeforeSuccess: 1);
+        var services = CreateAgentServices(bindings: [binding]);
+        var agent = CreateAgent(services);
+
+        await agent.HandleEnqueueAsync(CreateEnqueueEvent("r1", CreateReadModelJson("root-1")));
+
+        await agent.HandleTriggerReplayAsync(new ProjectionCompensationTriggerReplayEvent { BatchSize = 10 });
+        binding.AttemptCount.Should().Be(1);
+        binding.SuccessCount.Should().Be(0);
+        agent.State.Entries["r1"].AttemptCount.Should().Be(1);
+        agent.State.Entries["r1"].CompletedAtUtc.Should().BeNull();
+
+        await agent.HandleTriggerReplayAsync(new ProjectionCompensationTriggerReplayEvent { BatchSize = 10 });
+        binding.AttemptCount.Should().Be(2);
+        binding.SuccessCount.Should().Be(1);
+        agent.State.Entries["r1"].CompletedAtUtc.Should().NotBeNull();
+    }
+
+    [Fact]
+    public async Task HandleTriggerReplay_ShouldRespectBatchSize()
+    {
+        var binding = new FlakyGraphBinding(failuresBeforeSuccess: 0);
+        var services = CreateAgentServices(bindings: [binding]);
+        var agent = CreateAgent(services);
+
+        await agent.HandleEnqueueAsync(CreateEnqueueEvent("r1", "{}"));
+        await agent.HandleEnqueueAsync(CreateEnqueueEvent("r2", "{}"));
+        await agent.HandleEnqueueAsync(CreateEnqueueEvent("r3", "{}"));
+
+        await agent.HandleTriggerReplayAsync(new ProjectionCompensationTriggerReplayEvent { BatchSize = 2 });
+        binding.AttemptCount.Should().Be(2);
+
+        await agent.HandleTriggerReplayAsync(new ProjectionCompensationTriggerReplayEvent { BatchSize = 2 });
+        binding.AttemptCount.Should().Be(3);
+    }
+
+    [Fact]
+    public async Task State_ShouldSurviveDeactivateAndReactivate()
+    {
+        var store = new InMemoryEventStore();
+        var services = CreateAgentServices(eventStore: store);
+
+        var agent1 = CreateAgent(services);
+        await agent1.ActivateAsync();
+        await agent1.HandleEnqueueAsync(CreateEnqueueEvent("r1", "{}"));
+        await agent1.DeactivateAsync();
+
+        var agent2 = CreateAgent(services);
+        await agent2.ActivateAsync();
+
+        agent2.State.Entries.Should().ContainKey("r1");
+        agent2.State.Entries["r1"].FailedStore.Should().Be("Graph");
+    }
+
+    [Fact]
+    public async Task CompensatorIntegration_ShouldEnqueueViaActor()
+    {
+        var services = CreateAgentServices();
+        var agent = CreateAgent(services);
+
+        var outbox = new DirectOutbox(agent);
+        var compensator = new WorkflowProjectionDurableOutboxCompensator(outbox);
+        var context = new ProjectionStoreDispatchCompensationContext<WorkflowExecutionReport, string>
+        {
+            Operation = "mutate",
+            Key = "root-1",
+            ReadModel = CreateReadModel("root-1"),
+            FailedStore = "Graph",
+            SucceededStores = ["Document"],
+            Exception = new InvalidOperationException("graph write failed"),
+        };
+
+        await compensator.CompensateAsync(context);
+
+        agent.State.Entries.Should().HaveCount(1);
+        var entry = agent.State.Entries.Values.Single();
+        entry.FailedStore.Should().Be("Graph");
+        entry.Operation.Should().Be("mutate");
+        entry.ReadModelJson.Should().NotBeNullOrWhiteSpace();
+    }
+
+    [Fact]
+    public async Task ThinTimerIntegration_ShouldTriggerReplayViaOutbox()
+    {
+        var binding = new FlakyGraphBinding(failuresBeforeSuccess: 0);
+        var services = CreateAgentServices(bindings: [binding]);
+        var agent = CreateAgent(services);
+
+        await agent.HandleEnqueueAsync(CreateEnqueueEvent("r1", CreateReadModelJson("root-1")));
+
+        var outbox = new DirectOutbox(agent);
+        var options = new WorkflowExecutionProjectionOptions
+        {
+            DispatchCompensationReplayBatchSize = 10,
+        };
+        var timer = new WorkflowProjectionDispatchCompensationReplayHostedService(outbox, options);
+
+        await timer.ReplayOnceAsync();
+
+        agent.State.Entries["r1"].CompletedAtUtc.Should().NotBeNull();
+        binding.SuccessCount.Should().Be(1);
+    }
+
+    private static ProjectionCompensationEnqueuedEvent CreateEnqueueEvent(string recordId, string readModelJson) =>
+        new()
+        {
+            RecordId = recordId,
+            Operation = "mutate",
+            FailedStore = "Graph",
+            SucceededStores = { "Document" },
+            ReadModelType = typeof(WorkflowExecutionReport).FullName!,
+            ReadModelJson = readModelJson,
+            Key = recordId,
+            LastError = "test",
+        };
+
+    private static string CreateReadModelJson(string rootActorId) =>
+        System.Text.Json.JsonSerializer.Serialize(CreateReadModel(rootActorId));
+
+    private static WorkflowExecutionReport CreateReadModel(string rootActorId) =>
+        new()
+        {
+            Id = rootActorId,
+            RootActorId = rootActorId,
+            CommandId = "command-1",
+            WorkflowName = "workflow-1",
+            Input = "input",
+            StartedAt = DateTimeOffset.UtcNow,
+            CreatedAt = DateTimeOffset.UtcNow,
+            UpdatedAt = DateTimeOffset.UtcNow,
+        };
+
+    private sealed class FlakyGraphBinding : IProjectionStoreBinding<WorkflowExecutionReport, string>
+    {
+        private int _remainingFailures;
+
+        public FlakyGraphBinding(int failuresBeforeSuccess)
+        {
+            _remainingFailures = Math.Max(0, failuresBeforeSuccess);
+        }
+
+        public string StoreName => "Graph";
+
+        public int AttemptCount { get; private set; }
+
+        public int SuccessCount { get; private set; }
+
+        public Task UpsertAsync(WorkflowExecutionReport readModel, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            ArgumentNullException.ThrowIfNull(readModel);
+
+            AttemptCount++;
+            if (_remainingFailures > 0)
+            {
+                _remainingFailures--;
+                throw new InvalidOperationException("Simulated graph write failure.");
+            }
+
+            SuccessCount++;
+            return Task.CompletedTask;
+        }
+    }
+
+    /// <summary>
+    /// Bypasses IActorRuntime by dispatching events directly to the GAgent for unit testing.
+    /// </summary>
+    private sealed class DirectOutbox : IProjectionDispatchCompensationOutbox
+    {
+        private readonly WorkflowProjectionDispatchCompensationOutboxGAgent _agent;
+
+        public DirectOutbox(WorkflowProjectionDispatchCompensationOutboxGAgent agent)
+        {
+            _agent = agent;
+        }
+
+        public Task EnqueueAsync(ProjectionCompensationEnqueuedEvent evt, CancellationToken ct = default) =>
+            _agent.HandleEnqueueAsync(evt);
+
+        public Task TriggerReplayAsync(int batchSize, CancellationToken ct = default) =>
+            _agent.HandleTriggerReplayAsync(
+                new ProjectionCompensationTriggerReplayEvent { BatchSize = batchSize });
+    }
+}
diff --git a/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelStartupValidationHostedServiceTests.cs b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelStartupValidationHostedServiceTests.cs
new file mode 100644
index 000000000..23322f626
--- /dev/null
+++ b/test/Aevatar.Workflow.Host.Api.Tests/WorkflowReadModelStartupValidationHostedServiceTests.cs
@@ -0,0 +1,224 @@
+using Aevatar.Workflow.Projection.Configuration;
+using Aevatar.Workflow.Projection.Orchestration;
+using Aevatar.Workflow.Projection.ReadModels;
+using FluentAssertions;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Aevatar.Workflow.Host.Api.Tests;
+
+public class WorkflowReadModelStartupValidationHostedServiceTests
+{
+    [Fact]
+    public async Task StartAsync_WhenDocumentProbeFailsInNonProduction_ShouldContinue()
+    {
+        using var env = new EnvironmentVariableScope("ASPNETCORE_ENVIRONMENT", "Development");
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionDocumentStore<WorkflowExecutionReport, string>, FailingDocumentStore>();
+        services.AddSingleton<IProjectionGraphStore, NoOpGraphStore>();
+        await using var provider = services.BuildServiceProvider();
+        var startupValidation = new WorkflowReadModelStartupValidationHostedService(
+            provider,
+            new WorkflowExecutionProjectionOptions
+            {
+                ValidateDocumentProviderOnStartup = true,
+                ValidateGraphProviderOnStartup = false,
+            });
+
+        Func<Task> act = () => startupValidation.StartAsync(CancellationToken.None);
+
+        await act.Should().NotThrowAsync();
+    }
+
+    [Fact]
+    public async Task StartAsync_WhenDocumentProbeFailsInProduction_ShouldFailFast()
+    {
+        using var env = new EnvironmentVariableScope("ASPNETCORE_ENVIRONMENT", "Production");
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionDocumentStore<WorkflowExecutionReport, string>, FailingDocumentStore>();
+        services.AddSingleton<IProjectionGraphStore, NoOpGraphStore>();
+        await using var provider = services.BuildServiceProvider();
+        var startupValidation = new WorkflowReadModelStartupValidationHostedService(
+            provider,
+            new WorkflowExecutionProjectionOptions
+            {
+                ValidateDocumentProviderOnStartup = true,
+                ValidateGraphProviderOnStartup = false,
+            });
+
+        Func<Task> act = () => startupValidation.StartAsync(CancellationToken.None);
+
+        await act.Should().ThrowAsync<InvalidOperationException>()
+            .WithMessage("*document startup probe failed*");
+    }
+
+    [Fact]
+    public async Task StartAsync_WhenGraphProbeFailsInProduction_ShouldFailFast()
+    {
+        using var env = new EnvironmentVariableScope("DOTNET_ENVIRONMENT", "Production");
+        var services = new ServiceCollection();
+        services.AddSingleton<IProjectionDocumentStore<WorkflowExecutionReport, string>, NoOpDocumentStore>();
+        services.AddSingleton<IProjectionGraphStore, FailingGraphStore>();
+        await using var provider = services.BuildServiceProvider();
+        var startupValidation = new WorkflowReadModelStartupValidationHostedService(
+            provider,
+            new WorkflowExecutionProjectionOptions
+            {
+                ValidateDocumentProviderOnStartup = false,
+                ValidateGraphProviderOnStartup = true,
+            });
+
+        Func<Task> act = () => startupValidation.StartAsync(CancellationToken.None);
+
+        await act.Should().ThrowAsync<InvalidOperationException>()
+            .WithMessage("*graph startup probe failed*");
+    }
+
+    private sealed class NoOpDocumentStore : IProjectionDocumentStore<WorkflowExecutionReport, string>
+    {
+        public Task UpsertAsync(WorkflowExecutionReport readModel, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.CompletedTask;
+        }
+
+        public Task MutateAsync(string key, Action<WorkflowExecutionReport> mutate, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.CompletedTask;
+        }
+
+        public Task<WorkflowExecutionReport?> GetAsync(string key, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.FromResult<WorkflowExecutionReport?>(null);
+        }
+
+        public Task<IReadOnlyList<WorkflowExecutionReport>> ListAsync(int take = 50, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.FromResult<IReadOnlyList<WorkflowExecutionReport>>([]);
+        }
+    }
+
+    private sealed class FailingDocumentStore : IProjectionDocumentStore<WorkflowExecutionReport, string>
+    {
+        public Task UpsertAsync(WorkflowExecutionReport readModel, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.CompletedTask;
+        }
+
+        public Task MutateAsync(string key, Action<WorkflowExecutionReport> mutate, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.CompletedTask;
+        }
+
+        public Task<WorkflowExecutionReport?> GetAsync(string key, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.FromResult<WorkflowExecutionReport?>(null);
+        }
+
+        public Task<IReadOnlyList<WorkflowExecutionReport>> ListAsync(int take = 50, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            throw new InvalidOperationException("document store unavailable");
+        }
+    }
+
+    private class NoOpGraphStore : IProjectionGraphStore
+    {
+        public Task UpsertNodeAsync(ProjectionGraphNode node, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.CompletedTask;
+        }
+
+        public Task UpsertEdgeAsync(ProjectionGraphEdge edge, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.CompletedTask;
+        }
+
+        public Task DeleteNodeAsync(string scope, string nodeId, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.CompletedTask;
+        }
+
+        public Task DeleteEdgeAsync(string scope, string edgeId, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.CompletedTask;
+        }
+
+        public virtual Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
+            string scope,
+            string ownerId,
+            int skip = 0,
+            int take = 5000,
+            CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.FromResult<IReadOnlyList<ProjectionGraphNode>>([]);
+        }
+
+        public Task<IReadOnlyList<ProjectionGraphEdge>> ListEdgesByOwnerAsync(
+            string scope,
+            string ownerId,
+            int skip = 0,
+            int take = 5000,
+            CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>([]);
+        }
+
+        public Task<IReadOnlyList<ProjectionGraphEdge>> GetNeighborsAsync(
+            ProjectionGraphQuery query,
+            CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.FromResult<IReadOnlyList<ProjectionGraphEdge>>([]);
+        }
+
+        public Task<ProjectionGraphSubgraph> GetSubgraphAsync(ProjectionGraphQuery query, CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            return Task.FromResult(new ProjectionGraphSubgraph());
+        }
+    }
+
+    private sealed class FailingGraphStore : NoOpGraphStore
+    {
+        public override Task<IReadOnlyList<ProjectionGraphNode>> ListNodesByOwnerAsync(
+            string scope,
+            string ownerId,
+            int skip = 0,
+            int take = 5000,
+            CancellationToken ct = default)
+        {
+            ct.ThrowIfCancellationRequested();
+            throw new InvalidOperationException("graph store unavailable");
+        }
+    }
+
+    private sealed class EnvironmentVariableScope : IDisposable
+    {
+        private readonly string _name;
+        private readonly string? _previous;
+
+        public EnvironmentVariableScope(string name, string? value)
+        {
+            _name = name;
+            _previous = Environment.GetEnvironmentVariable(name);
+            Environment.SetEnvironmentVariable(name, value);
+        }
+
+        public void Dispose()
+        {
+            Environment.SetEnvironmentVariable(_name, _previous);
+        }
+    }
+}

From 5f9fda4de3bcc81110ca9439334a150da57ecd6c Mon Sep 17 00:00:00 2001
From: Auric <aloning@gmail.com>
Date: Wed, 25 Feb 2026 17:03:43 +0800
Subject: [PATCH 46/46] Add strict architecture audit report for PR #13 and
 update temperature handling in role agent configuration

- Introduced a new architecture audit report for PR #13, detailing the audit findings and scoring based on the defined criteria.
- Updated `ConfigureRoleAgentEvent` to use an optional field for temperature, allowing explicit zero values to be preserved.
- Modified `RoleGAgent` and `RoleGAgentFactory` to correctly handle the new temperature semantics, ensuring that explicit zero is retained during configuration.
- Enhanced projection ownership events to include an `occurred_at_utc` timestamp, improving event traceability and consistency.
- Added tests to verify the preservation of explicit zero temperature and the handling of occurred timestamps in projection events.
---
 ...13-architecture-audit-strict-2026-02-25.md | 123 ++++++++++++++++++
 src/Aevatar.AI.Abstractions/ai_messages.proto |   2 +-
 src/Aevatar.AI.Core/RoleGAgent.cs             |   2 +-
 src/Aevatar.AI.Core/RoleGAgentFactory.cs      |   9 +-
 .../ActorProjectionOwnershipCoordinator.cs    |   4 +
 .../ProjectionOwnershipCoordinatorGAgent.cs   |  37 +++++-
 .../projection_ownership_messages.proto       |   2 +
 .../RoleGAgentReplayContractTests.cs          |  57 ++++++++
 .../ProjectionOwnershipAndSessionHubTests.cs  |  88 +++++++++++++
 .../ProjectionOwnershipProtoCoverageTests.cs  |   2 +
 10 files changed, 317 insertions(+), 9 deletions(-)
 create mode 100644 docs/audit-scorecard/pr13-architecture-audit-strict-2026-02-25.md

diff --git a/docs/audit-scorecard/pr13-architecture-audit-strict-2026-02-25.md b/docs/audit-scorecard/pr13-architecture-audit-strict-2026-02-25.md
new file mode 100644
index 000000000..98d4fe968
--- /dev/null
+++ b/docs/audit-scorecard/pr13-architecture-audit-strict-2026-02-25.md
@@ -0,0 +1,123 @@
+# PR #13 严格架构审计报告（2026-02-25）
+
+- 审计日期：2026-02-25
+- 审计对象：`feat/generic-event-sourcing-elasticsearch-readmodel`（相对 `dev`）
+- 关联 PR：[Feat/generic event sourcing elasticsearch readmodel #13](https://github.com/aevatarAI/aevatar/pull/13)
+- 审计方式：代码证据核查 + 定向测试 + 架构门禁
+- 评分规范：`docs/audit-scorecard/README.md`（100 分模型，6 维度）
+
+---
+
+## 1. 严格结论
+
+本次 PR 当前状态 **不满足合并条件**。
+
+- Blocking：2（P1=1，P2=1）
+- Major：0
+- Medium：0
+
+合并裁决：**Reject（需先修复 P1/P2 并补齐回归测试）**。
+
+---
+
+## 2. 整体评分（100 分制）
+
+**总分：79 / 100（B）**
+
+| 维度 | 权重 | 得分 | 说明 |
+|---|---:|---:|---|
+| 分层与依赖反转 | 20 | 20 | 未发现跨层反向依赖。 |
+| CQRS 与统一投影链路 | 20 | 14 | Lease 重放时间语义不确定，影响事件重放一致性。 |
+| Projection 编排与状态约束 | 20 | 11 | ownership lease 在重放时被“刷新到当前时间”。 |
+| 读写分离与会话语义 | 15 | 10 | 会话 TTL 过期判定可被激活重放扰动。 |
+| 命名语义与冗余清理 | 10 | 10 | 命名和结构未见新增冗余壳层。 |
+| 可验证性（门禁/构建/测试） | 15 | 14 | 门禁/测试通过，但关键语义测试缺口导致缺陷未被捕获。 |
+
+---
+
+## 3. 阻断问题清单（必须先修）
+
+### P1：Ownership lease 使用运行时当前时间写状态，破坏回放语义
+
+风险级别：**Blocking**
+
+证据：
+1. `ApplyAcquire` 使用 `DateTime.UtcNow` 写入 `LastUpdatedAtUtc`，而非事件发生时刻：  
+   `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs:109`
+2. `ApplyRelease` 同样使用 `DateTime.UtcNow`：  
+   `src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs:125`
+3. 回放链路仅重放 payload，不携带 envelope timestamp 到状态迁移函数：  
+   `src/Aevatar.Foundation.Core/EventSourcing/EventSourcingBehavior.cs:159-163`  
+   `src/Aevatar.Foundation.Core/GAgentBase.TState.cs:72`
+
+架构影响：
+1. 激活重放历史事件时，租约更新时间会被重写为“当前激活时刻”，导致过期 lease 被误判为新鲜 lease。
+2. ownership takeover 被额外阻塞一个 TTL 窗口，破坏会话过期接管语义。
+3. 违反“事件重放确定性”和“事实源唯一”的架构要求。
+
+修复准入标准（必须全部满足）：
+1. 将 lease 更新时间改为“持久化事件时间”，禁止在 `Apply*` 中直接取 `DateTime.UtcNow`。
+2. `ProjectionOwnershipAcquireEvent/ReleaseEvent` 增加可重放的时间字段（或等价机制），并在写入时设置。
+3. 兼容历史事件（无时间字段时使用可解释降级策略），避免重放崩溃。
+4. 新增回归测试：`Acquire -> Deactivate -> Activate -> stale lease takeover` 必须稳定通过。
+
+---
+
+### P2：YAML 显式 `temperature: 0` 语义丢失
+
+风险级别：**Blocking**
+
+证据：
+1. YAML 应用路径将缺失温度和显式 0 都写成 `0`：  
+   `src/Aevatar.AI.Core/RoleGAgentFactory.cs:56`
+2. 处理器把 `evt.Temperature == 0` 转换为 `null`：  
+   `src/Aevatar.AI.Core/RoleGAgent.cs:76`
+3. `ConfigureRoleAgentEvent.temperature` 为 proto3 `double`，无法区分“未设置”和“显式 0”：  
+   `src/Aevatar.AI.Abstractions/ai_messages.proto:19`
+
+架构影响：
+1. 用户无法表达“确定性 0 温度”配置，行为退化为 provider 默认值。
+2. 配置语义在“YAML -> 事件 -> 运行时”链路发生信息损失，不满足显式配置优先原则。
+
+修复准入标准（必须全部满足）：
+1. 事件契约改为可区分“未设置/显式设置”的表示（例如 `optional`/`oneof`/wrapper）。
+2. `RoleGAgentFactory.ApplyConfig` 精确保留 YAML 的 `null` 与 `0` 语义差异。
+3. `HandleConfigureRoleAgent` 删除“0 => null”的语义折叠（仅在真正未设置时回落默认）。
+4. 新增回归测试至少 2 条：  
+   - 显式 `temperature: 0` 应保留为 0。  
+   - 缺省 `temperature` 才走 provider 默认。
+
+---
+
+## 4. 测试与门禁验证（本次实跑）
+
+1. `dotnet test test/Aevatar.CQRS.Projection.Core.Tests/Aevatar.CQRS.Projection.Core.Tests.csproj --nologo --filter "FullyQualifiedName~ProjectionOwnershipCoordinatorGAgentTests"`  
+   - 结果：Passed（7 passed / 0 failed）
+2. `dotnet test test/Aevatar.AI.Tests/Aevatar.AI.Tests.csproj --nologo --filter "FullyQualifiedName~RoleGAgentReplayContractTests|FullyQualifiedName~AIHooksAndRoleFactoryCoverageTests"`  
+   - 结果：Passed（6 passed / 0 failed）
+3. `bash tools/ci/architecture_guards.sh`  
+   - 结果：Passed
+
+说明：现有测试与门禁未覆盖上述两类语义回归点，因此“通过”不构成合并充分条件。
+
+---
+
+## 5. 覆盖缺口证据
+
+1. ownership 回放测试只验证“Acquire+Release 后重放为 inactive”，未覆盖“active lease 重放后 TTL 语义”：  
+   `test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs:309`
+2. role factory 测试覆盖了 `temperature: 0.2`，未覆盖显式 `temperature: 0`：  
+   `test/Aevatar.AI.Tests/AIHooksAndRoleFactoryCoverageTests.cs:112`
+
+---
+
+## 6. PR 合并前强制检查清单
+
+1. P1/P2 代码修复完成并通过 Code Review。
+2. 新增回归测试覆盖“lease 重放时间语义”和“temperature:0 显式语义”。
+3. 通过：
+   - `dotnet test aevatar.slnx --nologo`
+   - `bash tools/ci/architecture_guards.sh`
+   - `bash tools/ci/test_stability_guards.sh`（如涉及测试改动）
+
+在上述项全部满足前，本 PR 不应合并。
diff --git a/src/Aevatar.AI.Abstractions/ai_messages.proto b/src/Aevatar.AI.Abstractions/ai_messages.proto
index cc6cd6fb0..4f0a9bb8e 100644
--- a/src/Aevatar.AI.Abstractions/ai_messages.proto
+++ b/src/Aevatar.AI.Abstractions/ai_messages.proto
@@ -16,7 +16,7 @@ message ConfigureRoleAgentEvent {
   string provider_name = 2;
   string model = 3;
   string system_prompt = 4;
-  double temperature = 5;
+  optional double temperature = 5;
   int32 max_tokens = 6;
   int32 max_tool_rounds = 7;
   int32 max_history_messages = 8;
diff --git a/src/Aevatar.AI.Core/RoleGAgent.cs b/src/Aevatar.AI.Core/RoleGAgent.cs
index 6bded471e..85a01e4d8 100644
--- a/src/Aevatar.AI.Core/RoleGAgent.cs
+++ b/src/Aevatar.AI.Core/RoleGAgent.cs
@@ -73,7 +73,7 @@ public async Task HandleConfigureRoleAgent(ConfigureRoleAgentEvent evt)
             ProviderName = string.IsNullOrWhiteSpace(evt.ProviderName) ? "deepseek" : evt.ProviderName,
             Model = string.IsNullOrWhiteSpace(evt.Model) ? null : evt.Model,
             SystemPrompt = evt.SystemPrompt ?? string.Empty,
-            Temperature = evt.Temperature == 0 ? null : evt.Temperature,
+            Temperature = evt.HasTemperature ? evt.Temperature : null,
             MaxTokens = evt.MaxTokens == 0 ? null : evt.MaxTokens,
             MaxToolRounds = evt.MaxToolRounds <= 0 ? 10 : evt.MaxToolRounds,
             MaxHistoryMessages = evt.MaxHistoryMessages <= 0 ? 100 : evt.MaxHistoryMessages,
diff --git a/src/Aevatar.AI.Core/RoleGAgentFactory.cs b/src/Aevatar.AI.Core/RoleGAgentFactory.cs
index 8e05ba9eb..d9b471884 100644
--- a/src/Aevatar.AI.Core/RoleGAgentFactory.cs
+++ b/src/Aevatar.AI.Core/RoleGAgentFactory.cs
@@ -47,14 +47,17 @@ public static Task ConfigureFromYaml(RoleGAgent agent, string yaml, IServiceProv
     public static async Task ApplyConfig(RoleGAgent agent, RoleYamlConfig config, IServiceProvider services)
     {
         // ─── 基础配置（事件优先） ───
-        await agent.HandleConfigureRoleAgent(new ConfigureRoleAgentEvent
+        var configureEvent = new ConfigureRoleAgentEvent
         {
             RoleName = config.Name ?? string.Empty,
             SystemPrompt = config.SystemPrompt ?? string.Empty,
             ProviderName = config.Provider ?? "deepseek",
             Model = config.Model ?? string.Empty,
-            Temperature = config.Temperature ?? 0,
-        });
+        };
+        if (config.Temperature.HasValue)
+            configureEvent.Temperature = config.Temperature.Value;
+
+        await agent.HandleConfigureRoleAgent(configureEvent);
 
         // ─── EventModules 创建 ───
         if (string.IsNullOrEmpty(config.Extensions?.EventModules)) return;
diff --git a/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs b/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs
index 63313a1a6..f915253b6 100644
--- a/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs
+++ b/src/Aevatar.CQRS.Projection.Core/Orchestration/ActorProjectionOwnershipCoordinator.cs
@@ -31,12 +31,14 @@ public async Task AcquireAsync(
         CancellationToken ct = default)
     {
         var coordinatorActor = await ResolveCoordinatorActorAsync(scopeId, ct);
+        var occurredAtUtc = Timestamp.FromDateTime(DateTime.UtcNow);
         var envelope = CreateCoordinatorEnvelope(
             new ProjectionOwnershipAcquireEvent
             {
                 ScopeId = scopeId,
                 SessionId = sessionId,
                 LeaseTtlMs = _options.ResolveLeaseTtlMs(),
+                OccurredAtUtc = occurredAtUtc,
             },
             sessionId);
         await coordinatorActor.HandleEventAsync(envelope, ct);
@@ -48,11 +50,13 @@ public async Task ReleaseAsync(
         CancellationToken ct = default)
     {
         var coordinatorActor = await ResolveCoordinatorActorAsync(scopeId, ct);
+        var occurredAtUtc = Timestamp.FromDateTime(DateTime.UtcNow);
         var envelope = CreateCoordinatorEnvelope(
             new ProjectionOwnershipReleaseEvent
             {
                 ScopeId = scopeId,
                 SessionId = sessionId,
+                OccurredAtUtc = occurredAtUtc,
             },
             sessionId);
         await coordinatorActor.HandleEventAsync(envelope, ct);
diff --git a/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs
index f4bc50098..fe03b3218 100644
--- a/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs
+++ b/src/Aevatar.CQRS.Projection.Core/Orchestration/ProjectionOwnershipCoordinatorGAgent.cs
@@ -32,11 +32,13 @@ public async Task HandleAcquireAsync(ProjectionOwnershipAcquireEvent evt)
             throw new InvalidOperationException("Session id is required to acquire projection ownership.");
 
         var normalizedLeaseTtlMs = ProjectionOwnershipCoordinatorOptions.NormalizeLeaseTtlMs(evt.LeaseTtlMs);
+        var nowUtc = DateTime.UtcNow;
         var acquireEvent = new ProjectionOwnershipAcquireEvent
         {
             ScopeId = evt.ScopeId,
             SessionId = evt.SessionId,
             LeaseTtlMs = normalizedLeaseTtlMs,
+            OccurredAtUtc = ResolveOccurredAtForPersist(evt.OccurredAtUtc, nowUtc),
         };
 
         if (State.Active)
@@ -86,7 +88,14 @@ public async Task HandleReleaseAsync(ProjectionOwnershipReleaseEvent evt)
                 $"Projection ownership coordinator '{Id}' session mismatch. expected='{State.SessionId}', actual='{evt.SessionId}'.");
         }
 
-        await PersistDomainEventAsync(evt);
+        var releaseEvent = new ProjectionOwnershipReleaseEvent
+        {
+            ScopeId = evt.ScopeId,
+            SessionId = evt.SessionId,
+            OccurredAtUtc = ResolveOccurredAtForPersist(evt.OccurredAtUtc, DateTime.UtcNow),
+        };
+
+        await PersistDomainEventAsync(releaseEvent);
     }
 
     protected override ProjectionOwnershipCoordinatorState TransitionState(
@@ -106,7 +115,7 @@ private static ProjectionOwnershipCoordinatorState ApplyAcquire(
         next.ScopeId = evt.ScopeId;
         next.SessionId = evt.SessionId;
         next.Active = true;
-        next.LastUpdatedAtUtc = Timestamp.FromDateTime(DateTime.UtcNow);
+        next.LastUpdatedAtUtc = RequireOccurredAtUtc(evt.OccurredAtUtc, nameof(ProjectionOwnershipAcquireEvent));
         next.LeaseTtlMs = ProjectionOwnershipCoordinatorOptions.NormalizeLeaseTtlMs(evt.LeaseTtlMs);
         return next;
     }
@@ -115,14 +124,13 @@ private static ProjectionOwnershipCoordinatorState ApplyRelease(
         ProjectionOwnershipCoordinatorState current,
         ProjectionOwnershipReleaseEvent evt)
     {
-        _ = evt;
         if (!current.Active)
             return current;
 
         var next = current.Clone();
         next.Active = false;
         next.SessionId = string.Empty;
-        next.LastUpdatedAtUtc = Timestamp.FromDateTime(DateTime.UtcNow);
+        next.LastUpdatedAtUtc = RequireOccurredAtUtc(evt.OccurredAtUtc, nameof(ProjectionOwnershipReleaseEvent));
         return next;
     }
 
@@ -147,4 +155,25 @@ private static DateTime ResolveLastUpdatedUtc(Timestamp? timestamp)
             ? lastUpdatedUtc
             : DateTime.SpecifyKind(lastUpdatedUtc, DateTimeKind.Utc);
     }
+
+    private static Timestamp ResolveOccurredAtForPersist(Timestamp? occurredAtUtc, DateTime fallbackUtcNow)
+    {
+        if (occurredAtUtc != null)
+            return NormalizeTimestamp(occurredAtUtc);
+
+        return Timestamp.FromDateTime(EnsureUtc(fallbackUtcNow));
+    }
+
+    private static Timestamp RequireOccurredAtUtc(Timestamp? occurredAtUtc, string eventName) =>
+        occurredAtUtc == null
+            ? throw new InvalidOperationException($"{eventName} must include occurred_at_utc.")
+            : NormalizeTimestamp(occurredAtUtc);
+
+    private static Timestamp NormalizeTimestamp(Timestamp timestamp) =>
+        Timestamp.FromDateTime(EnsureUtc(timestamp.ToDateTime()));
+
+    private static DateTime EnsureUtc(DateTime value) =>
+        value.Kind == DateTimeKind.Utc
+            ? value
+            : DateTime.SpecifyKind(value, DateTimeKind.Utc);
 }
diff --git a/src/Aevatar.CQRS.Projection.Core/projection_ownership_messages.proto b/src/Aevatar.CQRS.Projection.Core/projection_ownership_messages.proto
index 17a87d6e0..838d2906e 100644
--- a/src/Aevatar.CQRS.Projection.Core/projection_ownership_messages.proto
+++ b/src/Aevatar.CQRS.Projection.Core/projection_ownership_messages.proto
@@ -16,9 +16,11 @@ message ProjectionOwnershipAcquireEvent {
   string scope_id = 1;
   string session_id = 2;
   int64 lease_ttl_ms = 3;
+  google.protobuf.Timestamp occurred_at_utc = 4;
 }
 
 message ProjectionOwnershipReleaseEvent {
   string scope_id = 1;
   string session_id = 2;
+  google.protobuf.Timestamp occurred_at_utc = 3;
 }
diff --git a/test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs b/test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs
index cde3d2136..1490f68af 100644
--- a/test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs
+++ b/test/Aevatar.AI.Tests/RoleGAgentReplayContractTests.cs
@@ -71,6 +71,63 @@ public async Task RoleGAgentFactory_ShouldUseEventSourcedConfigurePath()
         agent2.RoleName.Should().Be("assistant");
     }
 
+    [Fact]
+    public async Task RoleGAgentFactory_ShouldPreserveExplicitZeroTemperature()
+    {
+        var store = new InMemoryEventStoreForTests();
+        var services = new ServiceCollection()
+            .AddSingleton<IEventStore>(store)
+            .AddSingleton<EventSourcingRuntimeOptions>()
+            .AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>))
+            .BuildServiceProvider();
+
+        var agent = CreateAgent(services, "role-factory-temperature-zero");
+        await agent.ActivateAsync();
+        await RoleGAgentFactory.ApplyConfig(agent, new RoleYamlConfig
+        {
+            Name = "assistant",
+            Provider = "mock",
+            SystemPrompt = "system",
+            Temperature = 0,
+        }, services);
+
+        agent.Config.Temperature.Should().Be(0);
+
+        var persisted = await store.GetEventsAsync("role-factory-temperature-zero");
+        persisted.Should().ContainSingle();
+        var evt = persisted.Single().EventData.Unpack<ConfigureRoleAgentEvent>();
+        evt.HasTemperature.Should().BeTrue();
+        evt.Temperature.Should().Be(0);
+    }
+
+    [Fact]
+    public async Task RoleGAgentFactory_ShouldKeepTemperatureUnset_WhenYamlTemperatureIsMissing()
+    {
+        var store = new InMemoryEventStoreForTests();
+        var services = new ServiceCollection()
+            .AddSingleton<IEventStore>(store)
+            .AddSingleton<EventSourcingRuntimeOptions>()
+            .AddTransient(typeof(IEventSourcingBehaviorFactory<>), typeof(DefaultEventSourcingBehaviorFactory<>))
+            .BuildServiceProvider();
+
+        var agent = CreateAgent(services, "role-factory-temperature-null");
+        await agent.ActivateAsync();
+        await RoleGAgentFactory.ApplyConfig(agent, new RoleYamlConfig
+        {
+            Name = "assistant",
+            Provider = "mock",
+            SystemPrompt = "system",
+            Temperature = null,
+        }, services);
+
+        agent.Config.Temperature.Should().BeNull();
+
+        var persisted = await store.GetEventsAsync("role-factory-temperature-null");
+        persisted.Should().ContainSingle();
+        var evt = persisted.Single().EventData.Unpack<ConfigureRoleAgentEvent>();
+        evt.HasTemperature.Should().BeFalse();
+    }
+
     private static RoleGAgent CreateAgent(IServiceProvider services, string actorId)
     {
         var agent = new RoleGAgent
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
index ca9ce7f79..f7f06b4d2 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipAndSessionHubTests.cs
@@ -32,6 +32,7 @@ public async Task AcquireAsync_ShouldCreateCoordinatorActor_AndDispatchAcquireEv
         evt.ScopeId.Should().Be("scope-1");
         evt.SessionId.Should().Be("session-1");
         evt.LeaseTtlMs.Should().Be(ProjectionOwnershipCoordinatorOptions.DefaultLeaseTtlMs);
+        evt.OccurredAtUtc.Should().NotBeNull();
         envelope.CorrelationId.Should().Be("session-1");
         envelope.Direction.Should().Be(EventDirection.Self);
     }
@@ -76,6 +77,7 @@ public async Task ReleaseAsync_ShouldReuseExistingCoordinatorActor()
         var evt = envelope.Payload.Unpack<ProjectionOwnershipReleaseEvent>();
         evt.ScopeId.Should().Be("scope-1");
         evt.SessionId.Should().Be("session-1");
+        evt.OccurredAtUtc.Should().NotBeNull();
     }
 
     [Fact]
@@ -242,6 +244,23 @@ await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
         agent.State.LastUpdatedAtUtc.Seconds.Should().BeGreaterThanOrEqualTo(firstUpdatedAt.Seconds);
     }
 
+    [Fact]
+    public async Task HandleAcquireAsync_ShouldUseProvidedOccurredAtUtc()
+    {
+        var agent = CreateStatefulAgent(CreateStatefulAgentServices());
+        var occurredAtUtc = Google.Protobuf.WellKnownTypes.Timestamp.FromDateTime(DateTime.UtcNow.AddMinutes(-2));
+
+        await agent.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
+        {
+            ScopeId = "scope-1",
+            SessionId = "session-1",
+            LeaseTtlMs = 30_000,
+            OccurredAtUtc = occurredAtUtc,
+        });
+
+        agent.State.LastUpdatedAtUtc.Should().BeEquivalentTo(occurredAtUtc);
+    }
+
     [Fact]
     public async Task HandleAcquireAsync_ShouldAllowTakeover_WhenExistingLeaseExpired()
     {
@@ -337,6 +356,75 @@ await agent1.HandleReleaseAsync(new ProjectionOwnershipReleaseEvent
         agent2.State.ScopeId.Should().Be("scope-replay");
         agent2.State.SessionId.Should().BeEmpty();
     }
+
+    [Fact]
+    public async Task Replay_ShouldPreserveLeaseTimestamp_AndAllowExpiredTakeover()
+    {
+        var store = new TestInMemoryEventStore();
+        var services = CreateStatefulAgentServices(store);
+        var occurredAtUtc = Google.Protobuf.WellKnownTypes.Timestamp.FromDateTime(DateTime.UtcNow.AddMinutes(-10));
+
+        var agent1 = CreateStatefulAgent(services);
+        await agent1.ActivateAsync();
+        await agent1.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
+        {
+            ScopeId = "scope-replay-active",
+            SessionId = "session-1",
+            LeaseTtlMs = 1_000,
+            OccurredAtUtc = occurredAtUtc,
+        });
+        await agent1.DeactivateAsync();
+
+        var agent2 = CreateStatefulAgent(services);
+        await agent2.ActivateAsync();
+        agent2.State.Active.Should().BeTrue();
+        agent2.State.ScopeId.Should().Be("scope-replay-active");
+        agent2.State.SessionId.Should().Be("session-1");
+        agent2.State.LastUpdatedAtUtc.Should().BeEquivalentTo(occurredAtUtc);
+
+        await agent2.HandleAcquireAsync(new ProjectionOwnershipAcquireEvent
+        {
+            ScopeId = "scope-replay-active",
+            SessionId = "session-2",
+            LeaseTtlMs = 1_000,
+        });
+
+        agent2.State.Active.Should().BeTrue();
+        agent2.State.SessionId.Should().Be("session-2");
+    }
+
+    [Fact]
+    public async Task Replay_ShouldFailFast_WhenAcquireEventMissingOccurredAtUtc()
+    {
+        var store = new TestInMemoryEventStore();
+        var services = CreateStatefulAgentServices(store);
+        var agent = CreateStatefulAgent(services);
+        var agentId = agent.Id;
+        await store.AppendAsync(
+            agentId,
+            [
+                new StateEvent
+                {
+                    EventId = Guid.NewGuid().ToString("N"),
+                    Timestamp = Google.Protobuf.WellKnownTypes.Timestamp.FromDateTime(DateTime.UtcNow),
+                    Version = 1,
+                    EventType = ProjectionOwnershipAcquireEvent.Descriptor.FullName,
+                    EventData = Google.Protobuf.WellKnownTypes.Any.Pack(new ProjectionOwnershipAcquireEvent
+                    {
+                        ScopeId = "scope-legacy",
+                        SessionId = "session-legacy",
+                        LeaseTtlMs = 1_000,
+                    }),
+                    AgentId = agentId,
+                },
+            ],
+            expectedVersion: 0,
+            CancellationToken.None);
+
+        Func<Task> act = () => agent.ActivateAsync();
+        await act.Should().ThrowAsync<InvalidOperationException>()
+            .WithMessage("*occurred_at_utc*");
+    }
 }
 
 public class ProjectionSessionEventHubTests
diff --git a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipProtoCoverageTests.cs b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipProtoCoverageTests.cs
index 962e9c3c5..1ffa8311c 100644
--- a/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipProtoCoverageTests.cs
+++ b/test/Aevatar.CQRS.Projection.Core.Tests/ProjectionOwnershipProtoCoverageTests.cs
@@ -39,6 +39,7 @@ public void ProjectionOwnershipMessages_ShouldRoundTripCloneMergeAndReflect()
             ScopeId = "scope-1",
             SessionId = "session-1",
             LeaseTtlMs = 30L * 60 * 1000,
+            OccurredAtUtc = Timestamp.FromDateTime(DateTime.UtcNow),
         };
         var acquireParsed = ProjectionOwnershipAcquireEvent.Parser.ParseFrom(acquire.ToByteArray());
         acquireParsed.Should().BeEquivalentTo(acquire);
@@ -49,6 +50,7 @@ public void ProjectionOwnershipMessages_ShouldRoundTripCloneMergeAndReflect()
         {
             ScopeId = "scope-1",
             SessionId = "session-1",
+            OccurredAtUtc = Timestamp.FromDateTime(DateTime.UtcNow),
         };
         var releaseParsed = ProjectionOwnershipReleaseEvent.Parser.ParseFrom(release.ToByteArray());
         releaseParsed.Should().BeEquivalentTo(release);