diff --git a/.trellis/tasks/08-11-admin-manual-contract-attachment-boundary/check.jsonl b/.trellis/tasks/archive/2026-08/08-11-admin-manual-contract-attachment-boundary/check.jsonl
similarity index 100%
rename from .trellis/tasks/08-11-admin-manual-contract-attachment-boundary/check.jsonl
rename to .trellis/tasks/archive/2026-08/08-11-admin-manual-contract-attachment-boundary/check.jsonl
diff --git a/.trellis/tasks/08-11-admin-manual-contract-attachment-boundary/implement.jsonl b/.trellis/tasks/archive/2026-08/08-11-admin-manual-contract-attachment-boundary/implement.jsonl
similarity index 100%
rename from .trellis/tasks/08-11-admin-manual-contract-attachment-boundary/implement.jsonl
rename to .trellis/tasks/archive/2026-08/08-11-admin-manual-contract-attachment-boundary/implement.jsonl
diff --git a/.trellis/tasks/08-11-admin-manual-contract-attachment-boundary/prd.md b/.trellis/tasks/archive/2026-08/08-11-admin-manual-contract-attachment-boundary/prd.md
similarity index 100%
rename from .trellis/tasks/08-11-admin-manual-contract-attachment-boundary/prd.md
rename to .trellis/tasks/archive/2026-08/08-11-admin-manual-contract-attachment-boundary/prd.md
diff --git a/.trellis/tasks/08-11-admin-manual-contract-attachment-boundary/task.json b/.trellis/tasks/archive/2026-08/08-11-admin-manual-contract-attachment-boundary/task.json
similarity index 92%
rename from .trellis/tasks/08-11-admin-manual-contract-attachment-boundary/task.json
rename to .trellis/tasks/archive/2026-08/08-11-admin-manual-contract-attachment-boundary/task.json
index 64fcf079..13d66f38 100644
--- a/.trellis/tasks/08-11-admin-manual-contract-attachment-boundary/task.json
+++ b/.trellis/tasks/archive/2026-08/08-11-admin-manual-contract-attachment-boundary/task.json
@@ -3,7 +3,7 @@
   "name": "admin-manual-contract-attachment-boundary",
   "title": "管理员手册合同附件能力纠偏",
   "description": "纠正管理员手册对合同附件当前能力的误导表述，不改产品实现。",
-  "status": "in_progress",
+  "status": "completed",
   "dev_type": null,
   "scope": "仅修订 docs/管理员手册.md:442 的合同附件现状说明",
   "package": null,
@@ -11,7 +11,7 @@
   "creator": "shunli",
   "assignee": "shunli",
   "createdAt": "2026-08-11",
-  "completedAt": null,
+  "completedAt": "2026-08-11",
   "branch": null,
   "base_branch": "main",
   "worktree_path": null,