# 2026-06-26 M4C-H5 Mutation 完成

## 用户目标

从主项目 `02-P/plan-progress.markdown` 的 `P-20260626-m4c-handshake-coordination` 领取 m4c 侧 `M4C-H5-03`，基于 Mindraw production design、`MD-H1-03` lease slice 和已完成的 `M4C-H5-02` harness，完成 mutation-phase 预联调契约对齐。

范围边界：只做契约、harness、dry-run 准备；不调用真实写入，不改真实用户原件，不做 App open direct package write，不宣传 `.assets` 权威化，不领取 `PM-H5-GATE` 或任何 `H*` / `PM-*`。

## 已完成事项

- 新增 m4c `M4C-H5-03` mutation-phase harness，生成 `acquire_write_lease`、`release_write_lease`、`commit_write_result(createAiResultFrame)` 的 request/response contract fixture。
- 复用 `M4C-H5-01` fixture / 真实用户工作副本，以及 `M4C-H5-02` read-state/context stub。
- 输出 expected success/failure matrix：16 项场景。
- 输出 expected error mapping：覆盖 12 个关键失败码，包括 `LEASE_ALREADY_HELD`、`LEASE_EXPIRED`、`LEASE_ACTOR_MISMATCH`、`WRITE_PLAN_MISMATCH`、`MUTATION_SCHEMA_INVALID`、`SAVE_FAILED`。
- 生成 mutation-phase adapter stub 和 dry-run QA 证据。
- 回写主项目总台账，将 `M4C-H5-03` 标记完成并追加 Progress Log。
- m4c `03-O` 正式输出区已提交 commit `701b7ff7bf35ee71bfe1aca8606dffeff24071fe`。

## 文件变更

- `p.mindrawforcodex/03-O/C3.tools/scripts/m4c-h5-mutation-harness.mjs`
- `p.mindrawforcodex/03-O/K2.项目管理/联调QA/2026-06-26-M4C-H5-03Mutation契约清单.md`
- `p.mindrawforcodex/03-O/C1.source/CODEGRAPH.md`
- `p.mindrawforcodex/03-O/C3.tools/README.md`
- `p.mindrawforcodex/03-O/.codebase-memory/artifact.json`
- `p.mindrawforcodex/03-O/.codebase-memory/graph.db.zst`
- `p.mindrawforcodex/02-P/Round05-MCPAlpha/qa/round05-h5-mutation-harness-check.md`
- `p.mindrawforcodex/02-P/Round05-MCPAlpha/qa/round05-h5-mutation-harness.json`
- `p.mindrawforcodex/02-P/Round05-MCPAlpha/work/h5-joint-smoke/mutation-harness/`
- `p.mindrawforcodex/INDEX.md`
- `INDEX.md`
- `02-P/plan-progress.markdown`

## 验证命令

```bash
node --check p.mindrawforcodex/03-O/C3.tools/scripts/m4c-h5-mutation-harness.mjs
node p.mindrawforcodex/03-O/C3.tools/scripts/m4c-h5-mutation-harness.mjs contract
node p.mindrawforcodex/03-O/C3.tools/scripts/m4c-h5-mutation-harness.mjs smoke
git -C p.mindrawforcodex/03-O diff --check
codebase-memory-mcp cli index_repository '{"repo_path":"/Users/ar/Projects/ExcalidrawX/p.mindrawforcodex/03-O","project":"Users-ar-Projects-ExcalidrawX-p.mindrawforcodex-03-O"}'
```

## QA 结论

PASS。fixture 与真实用户工作副本 package digest 均未改变；`realUserOriginalWritten=false`、`defaultWritebackEnabled=false`、`appOpenDirectPackageWriteAllowed=false`、`realCommitInvoked=false`、`pmH5GateExecuted=false`、`assetStoreAuthorityClaimed=false`。

## 未决问题

- 本轮只证明契约和 dry-run harness 可复用，不证明真实 App 写入链路可用。
- 正式 loopback JSON-RPC / App API transport 尚未完成。
- 仍需 Mindraw `MD-H1-05` 真实 App QA 证据后，由 PM 拆正式 `PM-H5-GATE` 联合 smoke 子任务。

## 后续建议

等待 PM 收敛 `MD-H1-05` 与 m4c `M4C-H5-03` 证据。m4c 不自行领取 Gate、`H*` 或新增跨项目任务。