@opencode-manager/memory

Semantic memory and planning plugin for OpenCode AI agents

Quick Start

pnpm add @opencode-manager/memory

Add to your opencode.json:

{
  "plugin": ["@opencode-manager/memory"]
}

The local embedding model downloads automatically on install. For API-based embeddings (OpenAI or Voyage), see Configuration.

Features

• Semantic Memory Search - Store and retrieve project memories using vector embeddings
• Multiple Memory Scopes - Categorize memories as convention, decision, or context
• Automatic Deduplication - Prevents duplicates via exact match and semantic similarity detection
• Compaction Context Injection - Injects conventions and decisions into session compaction for seamless continuity
• Automatic Memory Injection - Injects relevant project memories into user messages via semantic search with distance filtering and caching
• Project KV Store - Ephemeral key-value storage with TTL management for project state
• Bundled Agents - Ships with Code, Architect, Auditor and Librarian agents preconfigured for memory-aware workflows
• CLI Tools - Export, import, list, stats, cleanup, upgrade, status, and cancel commands via ocm-mem binary
• Dimension Mismatch Detection - Detects embedding model changes and guides recovery via reindex
• Iterative Development Loops - Autonomous coding/auditing loop with worktree isolation, session rotation, stall detection, and review finding persistence
• Docker Sandbox - Run loops inside isolated Docker containers with bind-mounted project directory, automatic container lifecycle, and selective tool routing (bash, glob, grep)

Agents

The plugin bundles four agents that integrate with the memory system:

Agent	ID	Mode	Description
code	ocm-code	primary	Primary coding agent with memory awareness. Checks memory before unfamiliar code, stores architectural decisions and conventions as it works. Delegates planning operations to @librarian subagent.
architect	ocm-architect	primary	Read-only planning agent. Researches the codebase, delegates to @librarian for broad knowledge retrieval, designs implementation plans, then hands off to code via memory-plan-execute.
librarian	ocm-librarian	subagent	Expert agent for managing project memory. Handles post-compaction memory extraction and contradiction resolution.
auditor	ocm-auditor	subagent	Read-only code auditor with access to project memory for convention-aware reviews. Invoked via Task tool to review diffs, commits, branches, or PRs against stored conventions and decisions.

The auditor agent is a read-only subagent (temperature: 0.0) that can read memory but cannot write, edit, or delete memories or execute plans. It is invoked by other agents via the Task tool to review code changes against stored project conventions and decisions.

The architect agent operates in read-only mode (temperature: 0.0, all edits denied) with additional message-level read-only enforcement via the experimental.chat.messages.transform hook. After the user approves a plan you can choose to execute the plan in the same session with your execution model (less advanced model needed for cost / speed), new session, loop in the same branch or in external worktree.

Tools

Memory Tools

Tool	Description
memory-read	Search and retrieve project memories with semantic search
memory-write	Store a new project memory
memory-edit	Update an existing project memory
memory-delete	Delete a project memory by ID
memory-health	Health check, reindex, or upgrade the plugin to latest version
memory-plan-execute	Create a new Code session and send an approved plan as the first prompt

Project KV Tools

Ephemeral key-value storage for project state with automatic TTL-based expiration.

Tool	Description
memory-kv-set	Store a value with optional TTL (default 7 days)
memory-kv-get	Retrieve a value by key
memory-kv-list	List all active KV entries for the project. Optionally filter by key prefix.
memory-kv-delete	Delete a key-value pair by key

Loop Tools

Iterative development loops with automatic auditing. Runs in an isolated git worktree by default, or in the current directory with inPlace.

Tool	Description
memory-loop-cancel	Cancel an active loop by worktree name
memory-loop-status	Check status of loops. Supports restart to resume inactive loops.
memory-loop	Execute an architect plan using an iterative loop. Supports inPlace parameter.

Slash Commands

Command	Description	Agent
/review	Run a code review on current changes	auditor (subtask)
/loop	Start a loop (delegates to memory-loop)	code
/cancel-loop	Cancel the active loop	code

CLI

Manage memories using the ocm-mem CLI. The CLI auto-detects the project ID from git and resolves the database path automatically.

ocm-mem <command> [options]

Global options (apply to all commands):

Flag	Description
--db-path <path>	Path to memory database
--project, -p <name>	Project name or SHA (auto-detected from git)
--dir, -d <path>	Git repo path for project detection
--help, -h	Show help

Commands

export

Export memories to file (JSON or Markdown).

ocm-mem export --format markdown --output memories.md
ocm-mem export --project my-project --scope convention
ocm-mem export --limit 50 --offset 100

Flag	Description
--format, -f	Output format: json or markdown (default: json)
--output, -o	Output file path (prints to stdout if omitted)
--scope, -s	Filter by scope: convention, decision, or context
--limit, -l	Max number of memories (default: 1000)
--offset	Pagination offset (default: 0)

import

Import memories from file.

ocm-mem import memories.json --project my-project
ocm-mem import memories.md --project my-project --force

Flag	Description
--format, -f	Input format: json or markdown (auto-detected from extension)
--force	Skip duplicate detection and import all

list

List all projects with memory counts.

ocm-mem list

stats

Show memory statistics for a project (scope breakdown).

ocm-mem stats
ocm-mem stats --project my-project

cleanup

Delete memories by criteria.

ocm-mem cleanup --older-than 90
ocm-mem cleanup --ids 1,2,3 --force
ocm-mem cleanup --scope context --dry-run
ocm-mem cleanup --all --project my-project

Flag	Description
--older-than <days>	Delete memories older than N days
--ids <id,id,...>	Delete specific memory IDs
--scope <scope>	Filter by scope: convention, decision, or context
--all	Delete all memories for the project
--dry-run	Preview what would be deleted without deleting
--force	Skip confirmation prompt

upgrade

Check for plugin updates and install the latest version.

ocm-mem upgrade

status

Show loop status for the current project.

ocm-mem status
ocm-mem status --project my-project

Flag	Description
--project, -p <name>	Project name or SHA (auto-detected from git)

cancel

Cancel a loop by worktree name.

ocm-mem cancel my-worktree-name
ocm-mem cancel --project my-project my-worktree-name

Flag	Description
--project, -p <name>	Project name or SHA (auto-detected from git)

Configuration

On first run, the plugin automatically copies the bundled config to your config directory:

• Path: ~/.config/opencode/memory-config.jsonc
• Falls back to: $XDG_CONFIG_HOME/opencode/memory-config.jsonc

The plugin supports JSONC format, allowing comments with // and /* */.

You can edit this file to customize settings. The file is created only if it doesn't already exist. If a config exists at the old location (~/.local/share/opencode/memory/config.json), it will be automatically migrated to the new location.

{
  // Embedding configuration for vector embeddings
  "embedding": {
    "provider": "local",              // Provider: "local", "openai", or "voyage"
    "model": "all-MiniLM-L6-v2",      // Model name (auto-downloaded for local)
    "dimensions": 384,                // Vector dimensions (auto-detected if omitted)
    "baseUrl": "",                   // Custom API endpoint (optional)
    "apiKey": ""                     // API key for openai/voyage providers
  },

  // Similarity threshold for memory deduplication (0–1, default: 0.25)
  "dedupThreshold": 0.25,

  // Logging configuration
  "logging": {
    "enabled": false,                // Enable file logging
    "debug": false,                 // Enable debug-level output
    "file": ""                      // Log file path (defaults to ~/.local/share/opencode/memory/logs/memory.log)
  },

  // Session compaction settings
  "compaction": {
    "customPrompt": true,           // Use custom compaction prompt for continuity
    "maxContextTokens": 4000        // Token budget for injected memory context
  },

  // Memory injection into user messages via semantic search
  "memoryInjection": {
    "enabled": true,               // Enable automatic memory injection
    "debug": false,                // Enable debug logging
    "maxTokens": 2000,             // Token budget for injected <project-memory> block
    "cacheTtlMs": 30000            // Cache TTL for identical queries (30s)
  },

  // Messages transform hook for memory injection and read-only enforcement
  "messagesTransform": {
    "enabled": true,               // Enable transform hook
    "debug": false                 // Enable debug logging
  },

  // Model override for plan execution sessions (format: "provider/model")
  "executionModel": "",

  // Model override for the auditor agent (format: "provider/model")
  "auditorModel": "",

  // Iterative development loop settings
  "loop": {
    "enabled": true,               // Enable iterative loops
    "defaultMaxIterations": 15,    // Max iterations (0 = unlimited)
    "cleanupWorktree": false,      // Auto-remove worktree on cancel
    "defaultAudit": true,          // Run auditor after each coding iteration
    "model": "",                   // Model override for loop sessions
    "minAudits": 1,                // Minimum audit iterations before completion
    "stallTimeoutMs": 60000        // Stall detection timeout (60s)
  },

  // Docker sandbox configuration for isolated loop execution
  "sandbox": {
    "mode": "off",                 // Sandbox mode: "off" or "docker"
    "image": "ocm-sandbox:latest"  // Docker image for sandbox containers
  },

  // TUI sidebar widget configuration
  "tui": {
    "sidebar": true,               // Show memory sidebar in OpenCode TUI
    "showLoops": true,             // Display loop status in sidebar
    "showVersion": true            // Show plugin version in sidebar title
  }
}

For API-based embeddings:

{
  "embedding": {
    "provider": "openai",
    "model": "text-embedding-3-small",
    "apiKey": "sk-..."
  }
}

Options

Embedding

• embedding.provider - Embedding provider: "local", "openai", or "voyage"
• embedding.model - Model name
  • local: "all-MiniLM-L6-v2" (384d)
  • openai: "text-embedding-3-small" (1536d), "text-embedding-3-large" (3072d), or "text-embedding-ada-002" (1536d)
  • voyage: "voyage-code-3" (1024d) or "voyage-2" (1536d)
• embedding.dimensions - Vector dimensions (optional, auto-detected for known models)
• embedding.apiKey - API key for openai/voyage providers
• embedding.baseUrl - Custom endpoint (optional, defaults to provider's official API)

Storage

• dataDir - Directory for SQLite database storage (default: "~/.local/share/opencode/memory")
• dedupThreshold - Similarity threshold for deduplication (0–1, default: 0.25, clamped to 0.05–0.40)

Config Location

• Config file: ~/.config/opencode/memory-config.jsonc (or $XDG_CONFIG_HOME/opencode/memory-config.jsonc)
• Old config location (~/.local/share/opencode/memory/config.json) is automatically migrated on first load

Logging

• logging.enabled - Enable file logging (default: false)
• logging.debug - Enable debug-level log output (default: false)
• logging.file - Log file path. When empty, resolves to ~/.local/share/opencode/memory/logs/memory.log (default: ""). Logs remain in the data directory, only config has moved.

When enabled, logs are written to the specified file with timestamps. The log file has a 10MB size limit with automatic rotation.

Compaction

• compaction.customPrompt - Use a custom compaction prompt optimized for session continuity (default: true)
• compaction.maxContextTokens - Token budget for injected memory context with priority-based trimming (default: 4000)

Memory Injection

• memoryInjection.enabled - Inject relevant project memories into user messages via semantic search (default: true)
• memoryInjection.debug - Enable debug logging for memory injection (default: false)
• memoryInjection.maxResults - Maximum number of vector search results to retrieve (default: 5)
• memoryInjection.distanceThreshold - Maximum vector distance for a memory to be considered relevant; lower values are stricter (default: 0.5)
• memoryInjection.maxTokens - Token budget for the injected <project-memory> block (default: 2000)
• memoryInjection.cacheTtlMs - How long (ms) to cache results for identical queries (default: 30000)

Messages Transform

• messagesTransform.enabled - Enable the messages transform hook that handles memory injection and Architect read-only enforcement (default: true)
• messagesTransform.debug - Enable debug logging for messages transform (default: false)

Execution

• executionModel - Model override for plan execution sessions, format: provider/model (e.g. anthropic/claude-haiku-3-5-20241022). When set, memory-plan-execute uses this model for the new Code session. When empty or omitted, OpenCode's default model is used (typically the model field from opencode.json). Recommended: Set this to a fast, cheap model (e.g. Haiku or MiniMax) and use a smart model (e.g. Opus) for the Architect session — planning needs reasoning, execution needs speed.

Loop

• loop.enabled - Enable iterative development loops (default: true)
• loop.defaultMaxIterations - Default max iterations for loops, 0 = unlimited (default: 15)
• loop.cleanupWorktree - Auto-remove worktree on cancel (default: false)
• loop.defaultAudit - Run auditor after each coding iteration by default (default: true)
• loop.model - Model override for loop sessions (provider/model), falls back to executionModel (default: "")
• loop.stallTimeoutMs - Watchdog stall detection timeout in milliseconds (default: 60000)
• loop.minAudits - Minimum audit iterations required before completion (default: 1)

Sandbox

• sandbox.mode - Sandbox mode: "off" or "docker" (default: "off")
• sandbox.image - Docker image for sandbox containers (default: "ocm-sandbox:latest")

Top-level

• defaultKvTtlMs - Default TTL for KV store entries in milliseconds (default: 604800000 / 7 days)

Auditor

• auditorModel - Model override for the auditor agent (provider/model). When set, overrides the auditor agent's default model. When not set, uses platform default (default: "")

TUI

• tui.sidebar - Show the memory sidebar widget in OpenCode TUI (default: true)
• tui.showLoops - Display active and recent loop status in the sidebar (default: true)
• tui.showVersion - Show plugin version number in the sidebar title (default: true)

TUI Plugin

The plugin includes a TUI sidebar widget and dialog system for monitoring and managing loops directly in the OpenCode terminal interface.

Sidebar

The sidebar shows all loops for the current project:

• Loop name (truncated to 25 chars with middle ellipsis) with a colored status dot
• Status text: current phase for active loops, termination reason for completed/cancelled
• Clicking a worktree loop opens the Loop Details dialog
• Clicking a non-worktree loop navigates directly to its session

Loop Details Dialog

The Loop Details dialog shows a detailed view of a single loop:

• Name and status badge (active / completed / error / cancelled / stalled)
• Session stats: session ID, iteration count, token usage (input/output/cache), cost
• Latest output from the last assistant message (scrollable, up to 500 chars)
• Back — return to the loop list (when opened from the command palette)
• Cancel loop — abort the active loop session (visible only when loop is active)
• Close (esc) — dismiss the dialog

Command Palette

The Memory: Show loops command is registered in the command palette when loops exist for the current project. It opens a list of all worktree loops (large dialog), then drills into the Loop Details dialog for the selected loop (medium dialog) with a Back button to return to the list.

Setup

When installed via npm, the TUI plugin loads automatically when added to your TUI config. The plugin is auto-detected via the ./tui export in package.json.

Add to your ~/.config/opencode/tui.json or project-level tui.json:

{
  "$schema": "https://opencode.ai/tui.json",
  "plugin": [
    "@opencode-manager/memory"
  ]
}

For local development, reference the built TUI file directly:

{
  "$schema": "https://opencode.ai/tui.json",
  "plugin": [
    "/path/to/opencode-memory/dist/tui.js"
  ]
}

TUI options are configured in ~/.config/opencode/memory-config.jsonc under the tui key:

{
  "tui": {
    "sidebar": true,
    "showLoops": true,
    "showVersion": true
  }
}

Set sidebar to false to completely disable the widget.

architect → code Workflow

Plan with a smart model, execute with a fast model. The architect agent researches and designs; the code agent implements.

After the architect presents a plan, the user approves via one of four execution modes:

• New session — Creates a new Code session via memory-plan-execute
• Execute here — Executes the plan in the current session (code agent takes over immediately)
• Loop (worktree) — Runs the plan in an isolated git worktree with iterative coding/auditing via memory-loop. When config.sandbox.mode is "docker", the loop automatically uses Docker sandbox.
• Loop — Same as loop (worktree) but runs in the current directory (no worktree isolation, no sandbox)

Set executionModel in your config to a fast model (e.g., Haiku) and use a smart model (e.g., Opus) for the architect session.

See the full workflow guide for setup details.

Loop

The loop is an iterative development system that alternates between coding and auditing phases:

1. Coding phase — A Code session works on the task
2. Auditing phase — The Auditor agent reviews changes against project conventions and stored review findings
3. Session rotation — A fresh session is created for the next iteration
4. Repeat — Audit findings feed back into the next coding iteration

Session Rotation

Each iteration runs in a fresh session to keep context small and prioritize speed. After each phase completes, the current session is destroyed and a new one is created. The original task prompt and any audit findings are re-injected into the new session as a continuation prompt, so no context is lost while keeping the window clean.

Review Finding Persistence

Audit findings survive session rotation via the KV store. The auditor stores each bug and warning as a KV entry with key review-finding:<file>:<line> containing severity, description, and status. At the start of each audit:

• Existing findings are retrieved via memory-kv-list with prefix review-finding:
• Resolved findings are deleted
• Unresolved findings are carried forward into the review

Worktree Isolation

By default, loops run in an isolated git worktree with their own branch (e.g., opencode/loop-<slug>). On completion, changes are auto-committed and the worktree is removed (branch preserved for later merge). Set worktree: false to run in the current directory instead (skips worktree creation, auto-commit, and cleanup).

Auditor Integration

After each coding iteration, the auditor agent reviews changes against project conventions and stored review findings. Findings are persisted as review-finding: KV entries scoped to the loop's branch. Outstanding findings block completion, and a minimum audit count (minAudits, default: 1) must be met before the completion promise is honored.

Stall Detection

A watchdog monitors loop activity. If no progress is detected within stallTimeoutMs (default: 60s), the current phase is re-triggered. After 5 consecutive stalls, the loop terminates with reason stall_timeout.

Model Configuration

Loops use loop.model if set, falling back to executionModel, then the platform default. On model errors, automatic fallback to the default model kicks in.

Safety

• git push is denied inside active loop sessions
• Tools like question, memory-plan-execute, and memory-loop are blocked to prevent recursive loops and keep execution autonomous

Management

• Slash commands: /loop to start, /cancel-loop to cancel
• Tools: memory-loop-status for checking progress (with restart capability)
• CLI: ocm-mem status and ocm-mem cancel for loop management

Completion and Termination

The loop completes when the Code agent outputs the completion promise. It auto-terminates after maxIterations (if set) or after 3 consecutive errors.

By default, loops run in an isolated git worktree. Set inPlace: true to run in the current directory instead (skips worktree creation, auto-commit, and cleanup).

See the full documentation for details on worktree management, model configuration, and termination conditions.

Docker Sandbox

Run loop iterations inside an isolated Docker container. Three tools (bash, glob, grep) execute inside the container via docker exec, while read/write/edit operate on the host filesystem. Your project directory is bind-mounted at /workspace for instant file sharing.

Prerequisites

• Docker running on your machine

Setup

1. Build the sandbox image:

docker build -t ocm-sandbox:latest container/

The image includes Node.js 24, pnpm, Bun, Python 3 + uv, ripgrep, git, and jq.

2. Enable sandbox mode in your config (~/.config/opencode/memory-config.jsonc):

{
  "sandbox": {
    "mode": "docker",
    "image": "ocm-sandbox:latest"
  }
}

3. Restart OpenCode.

Usage

Start a sandbox loop via the architect plan approval flow (select "Loop (worktree)") or directly with the memory-loop tool:

memory-loop with worktree: true

Sandbox is automatically enabled when config.sandbox.mode is set to "docker" and the loop uses worktree: true. The loop:

1. Creates a git worktree (if worktree: true)
2. Starts a Docker container with the worktree directory bind-mounted at /workspace
3. Redirects bash, glob, and grep tool calls into the container
4. Cleans up the container on loop completion or cancellation

How It Works

• Bind mount -- the project directory is mounted directly into the container at /workspace. No sync daemon, no file copying. Changes are visible instantly on both sides.
• Tool redirection -- bash, glob, and grep route through docker exec when a session belongs to a sandbox loop. The read/write/edit tools operate on the host filesystem directly (compatible with host LSP).
• Git blocking -- git commands are explicitly blocked inside the container. All git operations (commit, push, branch management) are handled by the loop system on the host.
• Host LSP -- since files are shared via the bind mount, OpenCode's LSP servers on the host read the same files and provide diagnostics after writes and edits.
• Container lifecycle -- one container per loop, automatically started and stopped. Container name format: ocm-sandbox-<worktreeName>.

Configuration

Option	Default	Description
sandbox.mode	"off"	Set to "docker" to enable sandbox support
sandbox.image	"ocm-sandbox:latest"	Docker image to use for sandbox containers

Customizing the Image

The container/Dockerfile is included in the project. To add project-specific tools (e.g., Go, Rust, additional language servers), edit the Dockerfile and rebuild:

docker build -t ocm-sandbox:latest container/

Development

pnpm build      # Compile TypeScript to dist/
pnpm test       # Run tests
pnpm typecheck  # Type check without emitting

License

MIT