关闭中断的七天试运行任务（07-16-legacy-task-runbook-closeout）

.trellis/spec/hyb-oa/project-governance.md

@@ -62,6 +62,78 @@ rollback and future self-maintenance.
 - New work may mention an old Issue CSV for traceability, but must not require
   a new CSV unless the user explicitly requests legacy/export evidence.
 
+## Scenario: Interrupted Or Superseded Task Closeout
+
+### 1. Scope / Trigger
+
+- Trigger: a Trellis task is interrupted, expired, cancelled or superseded and
+  should leave the active-task list even though its original goal was not met.
+- Purpose: keep lifecycle state clean without turning archival metadata into a
+  false claim that acceptance criteria or business outcomes were completed.
+
+### 2. Signatures
+
+- Command: `python3 ./.trellis/scripts/task.py archive <task-name>`.
+- Effects: moves the task under `.trellis/tasks/archive/<year-month>/`, writes
+  `task.json.status=completed` and sets `completedAt`.
+
+### 3. Contracts
+
+- For interrupted or superseded tasks, `status=completed` means lifecycle
+  closed; it does not mean the original goal or every acceptance criterion was
+  achieved.
+- Before archive, add a `Lifecycle Closeout` section to `prd.md` and a concise
+  `task.json.notes` summary covering: what was actually completed, what is
+  missing, why the task stopped and which future task or condition replaces it.
+- Leave unmet acceptance checkboxes unchecked. Never create missing dates,
+  tests, human confirmation or production evidence merely to make the archived
+  task look complete.
+- Current indexes or runbooks must use the same closeout semantics when the task
+  previously represented an active operational fact.
+
+### 4. Validation & Error Matrix
+
+- All acceptance criteria achieved with evidence -> normal completed archive.
+- Goal incomplete but closeout section and notes are explicit -> lifecycle
+  archive is allowed; downstream readers must not infer goal completion.
+- Goal incomplete and closeout evidence is absent -> do not archive yet.
+- Historical evidence missing -> record it as missing; do not reconstruct or
+  backdate evidence.
+
+### 5. Good/Base/Bad Cases
+
+- Good: a seven-day trial with only Day 1-Day 4 records is archived with the
+  missing days, absent human closure and successor trial stated explicitly.
+- Base: a fully verified implementation is archived with its implementation and
+  deployment commits referenced.
+- Bad: mark Day 5-Day 7 complete or check all PRD boxes only because the task is
+  old and should disappear from the active list.
+
+### 6. Tests Required
+
+- `python3 ./.trellis/scripts/task.py validate <task-or-archive-path>`.
+- Inspect archived `task.json` for `status`, `completedAt` and truthful `notes`.
+- Run `node scripts/qa/check-trellis-governance.mjs` and `git diff --check`.
+- When the task affects current operational truth, run the documentation audit
+  and verify index/runbook wording matches the closeout outcome.
+
+### 7. Wrong vs Correct
+
+#### Wrong
+
+```json
+{ "status": "completed", "notes": "7 天试运行完成" }
+```
+
+#### Correct
+
+```json
+{
+  "status": "completed",
+  "notes": "生命周期关闭：仅完成 Day 1-Day 4，原目标未完成；未来由新任务从 Day 1 替代。"
+}
+```
+
 ## Scenario: Codex Inline Context Manifests
 
 ### 1. Scope / Trigger