v2.0.1 - Polished bilingual release gate diagrams

中文

• 重做 README 中的发布闸门流程图，移除 Mermaid 默认的淡紫色小节点和过量空白。
• 新增中英文静态 SVG，明确区分参数骨架、实际值回读、后置条件判断、语义 DRC 和人工发布。
• 用醒目的红色分支完整显示 E_POSTCONDITION_MISMATCH 的回滚与硬停止路径。
• 经过 Edge 实际渲染和中英文视觉复核，错误码、字号和边界均可读。

English

• Replaces the default Mermaid release-gate diagram with polished bilingual static SVGs.
• Makes readback, postcondition, semantic DRC, human release, and hard-stop behavior visually explicit.
• Verified by real browser rendering in English and Chinese.

v2.0.0 - Repository productization and one-command install

中文

这是一次仓库产品化和布局升级，运行时 Skill 内容保持 v1.3.0 的工程规则。

• 新增中英双语 GitHub 首页、1280×640 分享图、功能矩阵、安装说明、示例、FAQ 和明确边界。
• 新增一条命令安装器，支持 Codex、Claude Code 个人 Skill 和 Claude Code 项目 Skill；默认拒绝覆盖已有目录。
• 新增消费产品概念门示例和机器可读 DRC 阻断报告。
• 新增 Windows/Linux GitHub Actions、仓库校验器、Issue/PR 模板、贡献指南、安全策略和 MIT 许可证。
• Skill 包移动到 skills/mechanical-drafting-gbt/，保持运行时目录干净并符合渐进加载结构。

v1.x 升级

现有已安装 Skill 不受影响。新安装路径为 skills/mechanical-drafting-gbt/。更新前请保留本地自定义内容并把旧安装目录移到备份位置；安装器不会覆盖已有文件。

English

This release productizes the repository while preserving the v1.3.0 runtime engineering rules.

• Adds bilingual landing pages, a social preview asset, install guides, examples, FAQ, and explicit scope boundaries.
• Adds a safe one-command installer for Codex and Claude Code.
• Adds cross-platform CI, repository validation, contribution templates, security policy, and an MIT license.
• Moves the clean runtime package to skills/mechanical-drafting-gbt/.

Existing v1.x installations keep working. New installs must use the Skill subdirectory.

v1.3.0 - Consumer product concept and safety gates

中文

• 新增消费产品前置简报门：人群、场景、接口/插口数量、操作动作、线缆方向和产品意图缺一不可。
• 新概念或重大形态变更必须先比较至少三种低成本轮廓方案，并由用户或授权负责人选定。
• 采购件安装尺寸必须来自当前数据表/CAD 或受控实物测量，未验证数据保持 TBD。
• 新增市电与运动件安全门；隔离、接地、防火、运动防护和合规架构未明确前，只允许外形概念与危险/避让包络。
• 参数骨架完成后立即预览，不再等全部细节和标注完成才检查比例与布局。
• 几何/工程图 DRC 与产品设计评审分开；新增外观、人体工学、可达/维修、线缆管理和稳定性审查。
• 新增失败复盘模板：问题、证据、逃逸门、根因、临时处理、永久修复、防复发和验证夹具。
• 翻译同步校验扩展到 6 组镜像，并规范化 LF/CRLF，避免跨平台假报警。

市电安全门只表示机械概念具有可追溯的初步安全架构，不代表认证、实验室测试或授权批准已经完成。

English

• Adds hard consumer-product concept, purchased-part, mains/moving-hazard, early-preview, and product-design gates.
• Requires three low-cost concepts before detailed CAD for new concepts or major form changes.
• Separates geometry DRC from appearance, ergonomics, access, cable-management, and stability review.
• Adds a structured failure-review template and cross-platform translation-hash normalization.

v1.2.1 - Chinese maintenance mirror

中文

• 新增 SKILL.zh-CN.md 中文维护入口。
• 新增 GB/T 制图、AutoCAD/MCP、复杂装配体和 DRC 四份核心中文参考。
• 保持 E_POSTCONDITION_MISMATCH、拓扑/视图/比例等稳定规则 ID 与英文基线一致。
• 新增翻译同步校验器，检查英文源 SHA-256、规则 ID、标题层级和代码块结构。

英文 SKILL.md 仍是跨平台运行基线；中文镜像便于 GB/T 项目维护。流程对 Codex、Claude Code 和其他兼容 Agent 保持通用，不声称已修复任何 MCP 底层实现缺陷。

English

• Adds a Chinese maintenance entry point and four core Chinese references.
• Adds deterministic mirror drift checks for source hashes, stable IDs, heading levels, and fenced code blocks.
• Keeps the English baseline vendor-neutral and portable across compatible coding agents.

AutoCAD Skills v1.2.0 - MCP Postconditions and Semantic DRC

Why this release

This release turns a failed engine-drawing prototype into hard runtime and release gates. Tool success is no longer accepted as entity correctness, and a DRC run without FAIL is no longer accepted as drawing correctness.

本版本重点修复放行逻辑：MCP 坐标串写或后置条件不一致时必须停止；拓扑 WARNING 必须逐实体归类；概念图不能以低精度名义掩盖飞线、未闭合边界、视图来源冲突或比例错误。

MCP postcondition contract

• Add E_POSTCONDITION_MISMATCH as a hard failure.
• Require immutable/self-contained requests and strict schema rejection of missing, mistyped, or extra fields.
• Require per-operation requested, actual, and field-level diff, plus complete handle/document/transaction identity.
• Read every created/modified entity back and compare type, layer/role, coordinates, parameters, associations, closure, and semantic ownership.
• Roll back immediately on mismatch; after one failed recovery, switch to a verified backend such as a structured ezdxf path or report blocked.
• Add a 100-cycle interleaved LINE/RECTANGLE/POLYLINE/MTEXT conformance fixture for cross-request state leakage, strict-field rejection, rollback, document naming, and plotting identity.
• Distinguish legitimate idempotent already_satisfied operations from silent no-ops.

Semantic DRC

• DANGLING_ENDPOINT
• NEAR_MISS_CONNECTION
• INTERIOR_CROSSING
• UNOWNED_LINE
• UNCLOSED_MATERIAL_BOUNDARY
• PROTRUDING_OR_OCCLUDED_GEOMETRY
• VIEW_SOURCE_CONSISTENCY
• VIEW_SEMANTICS_CONSISTENCY
• DELIVERABLE_SCOPE_IDENTITY
• PLOT_SCALE_CONSISTENCY
• FINAL_VISUAL_INTEGRITY

Every topology warning now records handle/location, component and line class, intentional-open/crossing basis, evidence, and disposition. Unresolved semantic warnings block release even when purely geometric checks have no FAIL.

Assembly and release integrity

• Concept/teaching classification may reduce production annotations and analysis, but never basic topology, ownership, common-view-source, scale, or visual integrity.
• Add a functional/component coverage matrix so a partial crank-slider mechanism cannot be titled as a complete four-stroke engine assembly.
• Require a view mapping table with authoritative source revision and transforms.
• Reject CUTAWAY/section labels without matching cut, hatch, visibility, and abstraction semantics.
• Fit-to-page PDF output cannot carry a numeric 1:1 scale; use approved non-scale designation such as NTS and record plot mode FIT.
• Release reports now list authoritative source, preserved original/backup, working copy, final copies, and cleanup/retention strategy.

Validation

• Skill structure: valid
• Required failure codes, rule IDs, evidence fields, fallback route, and cleanup contract verified
• Release baseline is the commit attached to this tag

This release hardens the Skill contract. It does not claim that every AutoCAD MCP backend already implements the preferred strict request/response fields; unsupported backends must be treated as limited or blocked.

AutoCAD Skills v1.1.0 - GB/T Anchors and Tiered Verification

Why this release

This release hardens the skill for real Agent/MCP deployment: stronger GB/T anchoring, lower verification cost for safe local edits, and deterministic DRC coverage for standard mechanical representations.

本版本针对实际部署中的三个痛点：国外底座模型容易默认第三角画法；轻量修改被完整导出/重导流程拖慢；螺纹和标准件常被画成“看起来像、但不符合 GB/T”的几何。

Changes

• Default to first-angle projection for GB/T work only when the user, source drawing, and approved template do not specify another method; cross-check view placement, projection symbol, and title-block declaration.
• Add Chinese technical-lettering checks for glyph coverage, proportion, substitution, text bounds, and final PDF output. Font filenames such as gbenor/gbcbig are implementation choices, not automatic compliance.
• Add verified current standards for springs, centre holes, and rolling bearings: GB/T 4459.4-2003, GB/T 4459.5-1999, and GB/T 4459.7-2017.
• Add release DRC rule IDs for projection, title block, Chinese text, threads, gears, splines, springs, centre holes, and rolling bearings.
• Enforce GB/T simplified 2D representations instead of projecting full helical threads, all gear/spline teeth, spring turns, or rolling elements into routine views.
• Introduce three verification tiers: Tier 1 local fast path, Tier 2 affected-system verification, and Tier 3 full release verification.
• Tier 1 proves targeted parameter/handle/geometry and affected-view changes without forcing an unchanged PDF/DXF/STEP loop.
• Add escalation triggers for units, datums, projection, configuration, topology mapping, cross-view authority, BOM, dependencies, schemas, and release-critical changes.
• Prefer scoped in-place repair for isolated defects; reserve clean replacement geometry for widespread or authority/topology failures.
• Extend DRC reports with verification_tier and explicit deferred gates/escalation triggers.

Validation

• Skill structure: valid
• Obsolete unconditional export/re-import requirements: removed
• Official standard metadata checked on the Chinese national standards platform

Manufacturing artifacts remain candidate after human review unless an authorized external process approves the exact revision and configuration.

• Release baseline: 618b8ed047c6293cf9d9792889be5e3ebe509017

AutoCAD Skills v1.0.0 - Evidence-Based Mechanical CAD

Overview

AutoCAD-skills is an agent-neutral mechanical CAD skill for creating, revising, auditing, and releasing engineering drawings and models under verified Chinese GB/T conventions.

?? Codex?Claude Code ??? Agent Skills ??????????? SKILL.md,????????? references/,????????? scripts/?

Highlights

• AutoCAD and AutoCAD MCP readiness, recovery, transactions, plotting, and DXF round-trip validation
• Parametric 2D/3D parts, assemblies, mechanisms, gears, and complex assembly drawings
• Geometry, topology, cross-view, interference, DRC, DFM, and manufacturing-process checks
• GB/T drawing presentation, fits, GD&T/GPS, datum systems, tolerance stacks, and inspection planning
• BOM/item-balloon, configuration, revision, dependency, MBD/PMI, and release-package integrity
• Evidence requirements for kinematics, structural, thermal, fluid, fatigue, and dynamic analysis
• Deterministic SHA-256 release manifests with explicit external-approval protection

Reliability Principles

• A successful tool call, save, entity count, render, or exchange-file parse is not a release pass by itself.
• Measurements/queries and visual evidence are both required for high-risk work.
• Missing capabilities and evidence remain NOT_EVALUATED; they are never converted into optimistic assumptions.
• Agent-generated manufacturing artifacts remain candidate after human review unless an authorized external process approves the exact revision and configuration.

Installation

Place or clone this repository as one skill directory in a runtime that supports Agent Skills, then load SKILL.md. Runtime-specific metadata is optional; the engineering workflow remains vendor-neutral.

Validation

• Skill structure validated with the official skill validator
• Release-manifest script tested for deterministic output, path containment, and approval gating
• Release baseline: d59cb99007a162a7e4d33e073ae4093bdcee1515