Require conversation handoff at task completion (#651)

.task/archive/feature-conversation-handoff.md

@@ -0,0 +1,413 @@
+# feature/conversation-handoff 任务卡
+
+任务主记录：PR #651 https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/651；状态：已完成（合入前闭合）；owner：weichen
+
+## 基线与授权
+
+- 权威仓：ssh://git@git-ssh.u1680832.nyat.app:31411/weichen/Agent-System-Dev.git；目标分支：main；R0（initial_base_sha）= f97917032d143188bc7faf665aff612d9814af4e
+- 工作区：/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff（worktree）；分支：feature/conversation-handoff
+- 分支类型：standalone；root_target：main；immediate_target：main；accepting_requirements：false
+- 需求分流：verdict=NEW；selected_initiative=无；requirement_sha256=19ad0cf4b00048ede29774b079a28c2d8e417b9363c9cbe266ce99852b2594f9；triage_receipt=/tmp/task-handoff-triage-20261020.json；receipt_sha256=2ace0e14daaab36c1418ac3ce392cdbbf6e43722ddc86663b4939c8d85f9a930
+
+- 授权与交付终点：更新本仓任务交付规范，规定每轮结束时最终回复附可续作 handoff；按现行门禁完成 Review、PR、CI、合入与安全收口。不得修改共享规范子模块或增加自动化。
+- 交付模式：goal-first（目标、范围和交付终点一次确认；范围内连续推进）
+- 实施执行：agent-per-unit（配置：AGENT-EXECUTION.md）
+- 合入执行：agent（已授权交付范围内，Review 通过、冲突解决且当前 HEAD 的 CI 通过后合入）
+- 人工决策点：仅限目标/范围/验收变更、重大取舍、高后果操作或无法自动判定的业务验收
+- 当前阶段：最终验证与合入；当前增量：I1（对话收尾交接块规范）
+- 流程依据：仓库根目录 policy/delivery.md（归档后仍按仓库根目录定位）
+
+## 目标与非目标
+
+在 `policy/delivery.md` 定义最终回复 handoff 的最小字段、证据边界和无续办状态时的处理，并在 `AGENTS.md` 增加强制入口。共享 Development-Guidelines、模板、schema、自动化和测试不是本次范围。
+
+## Agent 实施收据
+
+路由与 fail-stop 规则见根目录 AGENT-EXECUTION.md 与 policy/delivery.md；每次尝试一行，原始日志留在源码外收据路径。
+
+| 单元 ID | 预期范围 | 配置摘要 | 角色 | 候选顺序 | attempt | CLI/模型 | 终态 | transport | fallback | 源码外收据路径 |
+|---|---|---|---|---|---|---|---|---|---|---|
+| conversation-handoff-rules | `AGENTS.md`, `policy/delivery.md` | 701aa8b8 | implementation | cursor, antigravity, pi | 1 | Cursor / auto | success | success (`a98f095`) | false | `/tmp/task-handoff-implementation-20261020.json` |
+
+## 关联方向与规划
+
+- 适用状态：待核对（无适用规划时说明原因）
+- 主记录路径/版本：待核对（路径按仓库根目录定位，归档后不变；只引用唯一正文）
+- 对应里程碑：待核对
+
+## 需求分析
+
+| ID | 描述 | 项目符合度及依据 | 优先级 | 验收条件 | 依赖 | 结论 |
+|---|---|---|---|---|---|---|
+| R1 | 每轮用户任务结束时提供可在上下文清理后恢复工作的 handoff | 与现有任务卡为状态权威、阶段 handoff 落盘规则一致；对话 handoff 仅作恢复摘要 | 必须 | 最终回复末尾有自包含续作要点，未发生的信息不编造；无仓库与续办状态时允许一行明确不适用 | 无 | 已实现；待 CI 准入 |
+
+## 方案与计划
+
+- 方案引用：待填写（含对象版本）
+- 实施计划引用：待填写（含增量与需求 ID）
+- 测试计划引用：待填写（含需求 ID 与验收条件）
+
+## 阶段记录
+
+| 阶段 | 对象版本 | 状态 | 决策/执行者 | 时间 | 依据 |
+|---|---|---|---|---|---|
+| 需求拆解/评估 | f97917032d143188bc7faf665aff612d9814af4e | 完成 | 主模型；NEW，与现有 RDM initiative 不相关 | 2026-10-20 | triage receipt `/tmp/task-handoff-triage-20261020.json` |
+| 方案/实施计划 | a98f095cef5ede016440d92060fa62db03b7318b | 完成 | 主模型；仅更新规范权威与入口摘要 | 2026-10-20 | 本卡目标与范围 |
+| 实施与自检 | a98f095cef5ede016440d92060fa62db03b7318b | 完成 | Cursor CLI；transport 成功，host 检查 | 2026-10-20 | `/tmp/task-handoff-implementation-20261020.json`；`git show --check --format= HEAD`；`make agent-exec-validate` |
+| 正式测试与验收 | 0dcaa430e0d724752aef1f55f120f419eeda9ad4 | 阻塞 | 文档直接检查通过；代码测试不适用 | 2026-10-20 | GATE CI run #4403 的 `test-pg` 失败，日志为 `TestArtifactFacadeCard` 的 anchorMessageId 不匹配；`svc-realcombo` 通过，`test` 当时 pending |
+| 代码 Review | 0dcaa430e0d724752aef1f55f120f419eeda9ad4 | 通过 | 主模型审阅规范差异及链接 | 2026-10-20 | 仅涉及 `AGENTS.md`、`policy/delivery.md`；无规范缺陷 |
+| 合入 | 待定 | 待执行 | agent | — | — |
+| 合入核验与收口 | 待定 | 待执行 | host | — | — |
+
+## 探索试验与迭代
+
+| 增量/试验 | 假设 | 范围 | 判断和停止条件 | 授权/决策依据 | 结果 | 变更影响 | 需重审补测 |
+|---|---|---|---|---|---|---|---|
+| 待定义 | — | — | — | 待核对 | NOT_RUN | 待评估 | 待评估 |
+
+## 同步记录
+
+| 节点 | sync_base_sha | tested_head_sha | checked_at |
+|---|---|---|---|
+| 启动 | f97917032d143188bc7faf665aff612d9814af4e | f97917032d143188bc7faf665aff612d9814af4e | 2026-10-20T07:09:18Z |
+
+## 证据（Evidence）
+
+<!-- CMD="<命令>" make evidence 写入；手抄/转写输出视为无效证据（AGENTS.md 证据与验证门禁）。 -->
+| 时间(UTC) | 命令 | 被测HEAD | exit | 来源 | sha256(16) |
+|---|---|---|---|---|---|
+
+## 交付调度
+
+- 调度状态：持有最终窗口；调度记录：#518 comment 8266
+- entry_id：mq-dev-20261020-conversation-handoff-01；attempt_id：final-01；窗口执行者：host / weichen
+- 固定候选：无（base/head、组件与相关配置引用实际尝试）
+- 调度依据：policy/delivery.md#合入调度
+- 固定后证据：源码外 RECEIPT；实际结果后按授权原样导入和闭合
+
+## 结果与验证
+
+- 结果：增加最终回复 handoff 规范及 AGENTS 强制指针；与任务卡/持久阶段交接权威边界一致。
+- 验证：旧候选的 GATE 失败保留为历史；当前已同步权威 main 17f8bc06c110014b9101e7a33729d9f5445bd123，文档范围/字段/链接/现行规则保留、agent-exec validate 和递归组合检查均 SELF PASS（下方原始 evidence）。最终 HEAD 的 test/test-pg/svc-realcombo GATE 待运行。
+- 影响与剩余项：规范变更已就绪；Backend 修复 #226 已合入但 Dev 组合采用由独立 #653 承担。本 PR 仅规范与任务记录，须最终 HEAD 三项 CI 全绿后合入。
+
+## 规划进展与下一步
+
+- 本次推进/剩余：完成已授权的对话 handoff 规范；不属长期业务方案，剩余为当前候选 GATE、合入核验和安全收口。
+- 首选下一任务：完成本 PR 当前交付，无新增任务；新版运行时组合已有 PR #653，继续由原任务负责。
+- 推荐依据：待填写
+- 前置条件/待确认：待核对
+- 预期产物/验收条件：待定义
+- 重复任务核对：待核对（已有/在途任务、PR 与规划记录）
+- 启动授权：未授权（建议不自动启动新任务，仍须明确授权）
+
+## 合入与清理
+
+- Review 记录：PASS（主模型；head `0dcaa430e0d724752aef1f55f120f419eeda9ad4`；规范范围与链接审阅通过）
+- 冲突记录：NOT_RUN（最新目标同步、冲突处置、组合兼容核验及复审/补测）
+- CI 记录：FAIL（GATE；head `0dcaa430e0d724752aef1f55f120f419eeda9ad4`；run #4403；`test-pg` 的 `TestArtifactFacadeCard` 失败，`svc-realcombo` 通过，`test` 为 pending；[job 7138](https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/actions/runs/4403/jobs/7138)）
+- 合入记录：NOT_RUN（CI 未通过，未合入）
+- 清理记录：NOT_RUN（授权依据、写者退出确认、worktree/分支/任务卡处置）
+
+<!-- Local receipt: SELF. Digests detect corruption; they do not authenticate a reviewer or CI. -->
+```json
+{
+  "summary_schema": 1,
+  "source": "SELF",
+  "timestamp": "2026-10-20T07:08:07.377183+00:00",
+  "command": "make precheck",
+  "exit_code": 0,
+  "cwd": "/home/weichen/projects/Agent-System-Dev",
+  "before_head": "f97917032d143188bc7faf665aff612d9814af4e",
+  "after_head": "f97917032d143188bc7faf665aff612d9814af4e",
+  "branch": "main",
+  "target_branch": "main",
+  "target_head": "f97917032d143188bc7faf665aff612d9814af4e",
+  "root_target": "main",
+  "immediate_target": "main",
+  "before_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "after_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "output_tail": [
+    "make[1]: Entering directory '/home/weichen/projects/Agent-System-Dev'",
+    "[repo]   branch=main head=f97917032d",
+    "[remote] origin/main=f97917032d ahead=0 behind=0",
+    "[tree]   clean submodules_drift=0 uninit=0",
+    "[worktrees] linked=8",
+    "[initiatives] local cards (not authoritative): none",
+    "[hooks]   core.hooksPath=scripts/hooks（pre-commit/post-merge 实际接线）",
+    "[facts]   policy/facts.md 6 条事实均在有效期内",
+    "[required-reading] core/baseline.md, workflows/delivery.md §1, policy/delivery.md",
+    "[R0] f97917032d（完整：f97917032d143188bc7faf665aff612d9814af4e）",
+    "[worktree] before-sync: recursive component checks passed",
+    "[verdict] READY — 保留本次 precheck receipt 后建任务工作区：PRECHECK_RECEIPT=/tmp/task-precheck.json make task-start NAME=feature/your-branch",
+    "make[1]: Leaving directory '/home/weichen/projects/Agent-System-Dev'"
+  ],
+  "output_sha256": "601e28fd5627afdf978a470ef2b37265fee4ff28520a4668dd8e6a19ce5553e6",
+  "receipt_sha256": "237e2888ced51370c2ca6ba41989e490f6e00c72bdbb74d008a15725efcaff65",
+  "receipt_path": "/home/weichen/.cache/agent-system-dev/evidence/237e2888ced51370c2ca6ba41989e490f6e00c72bdbb74d008a15725efcaff65.json"
+}
+```
+
+## 闭合记录（合入前折叠）
+
+- 本卡在 PR #651（https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/651）合入前闭合并归档，随该 PR 一同合入。
+- 该 PR 的合并提交即本任务的落地记录。
+- 合入后无需回填，也无需单独的闭合 PR。
+
+## 2026-10-20 恢复与 fail-stop 对账
+
+- 用户再次明确“继续”，目标仍为 PR #651 通过必要验证并合入；已授权修复阻塞合入的 Backend 测试，禁止 host 代写。
+- 原 repair run `290c8b13f4a4a9e5d67df066754ab3fd` 的终态仍为 `scope-expansion`，没有 transport，不导入任何产物；原隔离现场保留。
+- 已只读检查唯一未跟踪诊断文件 `internal/server/zz_diag_tmp_test.go` 与实际工具事件；未发现仓库正式代码、引用或远端修改。机器本地诊断产物位于 `/tmp/ciflake-943183` 与 `~/.cache/ciflake-943183-tmp`，原执行器记录的进程及该现场写者已退出。
+- 原包把 `internal/server/**` 当作目录通配，但执行器仅按精确路径或目录前缀匹配；新单元须使用明确文件清单，不续跑原尝试、不修改执行器。
+- Backend 已登记任务工作区已保留并移至 `/home/weichen/projects/Agent-System-Backend-wt-fix-ci-pg-flaky-tests`，修复 Git 与唯一已初始化子模块的路径元数据；Dev 工作树的未跟踪嵌套工作区阻塞已消除。
+- 启动检查原始 SELF 收据：`/tmp/pr651-resume-20261020-a1.json`（SHARED_WORKSPACE_BUSY）、`/tmp/pr651-resume-20261020-a2.json`（任务卡已归档，拒绝 LOCAL_READY）；不宣称通过。恢复活动卡后重新检查。
+- GATE 重新只读核验：PR #651 head `19566bfde79313dfaea31ff6f5ca918f820c1606` 仍开放；run 4404 的 test/svc-realcombo success，test-pg failure；日志 `/tmp/pr651-job7141.log`。目标 main 当前 `f1866dc3bb4537ac6446fdd26e696cb636b543ef`；#648 持有交付窗口，本任务先局部排障。
+
+<!-- Local receipt: SELF. Digests detect corruption; they do not authenticate a reviewer or CI. -->
+```json
+{
+  "summary_schema": 1,
+  "source": "SELF",
+  "timestamp": "2026-10-20T08:46:38.272183+00:00",
+  "command": "make precheck",
+  "exit_code": 0,
+  "cwd": "/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff",
+  "before_head": "f9884db84b7fb5752d50b641f09adb75303e327c",
+  "after_head": "f9884db84b7fb5752d50b641f09adb75303e327c",
+  "branch": "feature/conversation-handoff",
+  "target_branch": "main",
+  "target_head": "adbef2f49c6c252a09449496afbdb6685201993b",
+  "root_target": "main",
+  "immediate_target": "main",
+  "before_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "after_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "output_tail": [
+    "make[1]: Entering directory '/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff'",
+    "[repo]   branch=feature/conversation-handoff head=f9884db84b",
+    "[remote] origin/main=adbef2f49c ahead=6 behind=26",
+    "[tree]   clean submodules_drift=0 uninit=0",
+    "[worktrees] linked=6",
+    "[initiatives] local cards (not authoritative): none",
+    "[hooks]   core.hooksPath=scripts/hooks（pre-commit/post-merge 实际接线）",
+    "[facts]   policy/facts.md 6 条事实均在有效期内",
+    "[required-reading] core/baseline.md, workflows/delivery.md §1, policy/delivery.md",
+    "[target] adbef2f49c6c252a09449496afbdb6685201993b（observed; task initial baseline is reported separately）",
+    "[task-state] registered=/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff initial_base=f97917032d143188bc7faf665aff612d9814af4e",
+    "[verdict] LOCAL_READY — existing task may continue authorized local work; final delivery still requires latest-target sync and checks",
+    "make[1]: Leaving directory '/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff'"
+  ],
+  "output_sha256": "be0eda106b0ed68d8f108a607b83c5231d1c34c744675a83995638fa5e39aa43",
+  "receipt_sha256": "12bb48774c59da7635b3b0cf1ef81465b5fe29475baaf880c72a1a82a0649f46",
+  "receipt_path": "/home/weichen/.cache/agent-system-dev/evidence/12bb48774c59da7635b3b0cf1ef81465b5fe29475baaf880c72a1a82a0649f46.json"
+}
+```
+
+- 局部恢复已通过并导入：`/tmp/pr651-resume-20261020-a6.json`（LOCAL_READY，SELF）；正式交付需新鲜同步与固定 HEAD CI。
+- 新 repair 单元：`ci-pg-async-completion-r2`；固定 Backend base `e927694818f3c0b79ec663d70ab2aa9d47d8fd8f`；工作包 `/tmp/pr651-repair-unit-r2.json`；收据目标 `/tmp/pr651-repair-r2.json`；运行中，尚无成功产物。
+
+<!-- Local receipt: SELF. Digests detect corruption; they do not authenticate a reviewer or CI. -->
+```json
+{
+  "summary_schema": 1,
+  "source": "SELF",
+  "timestamp": "2026-10-20T09:09:46.106201+00:00",
+  "command": "cd /home/weichen/projects/Agent-System-Backend-wt-fix-ci-pg-flaky-tests && git rev-parse HEAD && GOWORK=off go vet ./... && GOWORK=off go test -count=1 ./...",
+  "exit_code": 0,
+  "cwd": "/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff",
+  "before_head": "4544cd94f8ece209b32aec885a410e5eeaef968e",
+  "after_head": "4544cd94f8ece209b32aec885a410e5eeaef968e",
+  "branch": "feature/conversation-handoff",
+  "target_branch": "main",
+  "target_head": "17f8bc06c110014b9101e7a33729d9f5445bd123",
+  "root_target": "main",
+  "immediate_target": "main",
+  "before_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "after_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "output_tail": [
+    "ok  \tagent-system-backend/internal/runtime\t1.834s",
+    "ok  \tagent-system-backend/internal/server\t28.474s",
+    "ok  \tagent-system-backend/internal/settings\t0.211s",
+    "ok  \tagent-system-backend/internal/skills\t1.741s",
+    "ok  \tagent-system-backend/internal/squadadapter\t0.158s",
+    "ok  \tagent-system-backend/internal/store\t12.820s",
+    "ok  \tagent-system-backend/internal/surfacesvc\t0.399s",
+    "ok  \tagent-system-backend/internal/tools\t13.619s",
+    "ok  \tagent-system-backend/internal/vision\t0.003s",
+    "ok  \tagent-system-backend/internal/wfcompile\t0.050s",
+    "ok  \tagent-system-backend/internal/workflow\t0.002s",
+    "ok  \tagent-system-backend/pkg/extension\t0.004s",
+    "ok  \tagent-system-backend/pkg/extension/link\t0.006s",
+    "ok  \tagent-system-backend/pkg/identity\t0.095s",
+    "?   \tagent-system-backend/web\t[no test files]"
+  ],
+  "output_sha256": "08769f0589e95d0b7878ce3551b931aceae5f80ad4916cc5f64bfd53ae5cfbb0",
+  "receipt_sha256": "d0a0fa46d65618338b88d99c72e53402449454c740fe7399d6354b7a80f5d084",
+  "receipt_path": "/home/weichen/.cache/agent-system-dev/evidence/d0a0fa46d65618338b88d99c72e53402449454c740fe7399d6354b7a80f5d084.json"
+}
+```
+
+<!-- Local receipt: SELF. Digests detect corruption; they do not authenticate a reviewer or CI. -->
+```json
+{
+  "summary_schema": 1,
+  "source": "SELF",
+  "timestamp": "2026-10-20T09:13:47.514647+00:00",
+  "command": "cd /home/weichen/projects/Agent-System-Backend-wt-fix-ci-pg-flaky-tests && git rev-parse HEAD && git diff --check origin/main HEAD && GOWORK=off go test ./internal/server ./internal/runmgr -run \"^(TestArtifactFacadeCard|TestMockCardflowFullLoop|TestMockCardflowStreamLoop|TestBackground.*|TestProjectEvents.*|TestUnregisteredProjectEventsRetainLegacyReads)$\" -count=1",
+  "exit_code": 0,
+  "cwd": "/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff",
+  "before_head": "4544cd94f8ece209b32aec885a410e5eeaef968e",
+  "after_head": "4544cd94f8ece209b32aec885a410e5eeaef968e",
+  "branch": "feature/conversation-handoff",
+  "target_branch": "main",
+  "target_head": "17f8bc06c110014b9101e7a33729d9f5445bd123",
+  "root_target": "main",
+  "immediate_target": "main",
+  "before_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "after_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "output_tail": [
+    "910d8e5fd20747eebc6e53b5fc0118185cb53765",
+    "ok  \tagent-system-backend/internal/server\t6.436s",
+    "ok  \tagent-system-backend/internal/runmgr\t0.495s"
+  ],
+  "output_sha256": "3015a2c860e2066174d3f89da874b63b403192d9aa870b0a3fa4e238f1db9e24",
+  "receipt_sha256": "5d2035b4cc2d543ec86a9fa19b93ed143ff6a637ab275a328827ad5ba02e7b56",
+  "receipt_path": "/home/weichen/.cache/agent-system-dev/evidence/5d2035b4cc2d543ec86a9fa19b93ed143ff6a637ab275a328827ad5ba02e7b56.json"
+}
+```
+
+## Backend 修复结果与本 PR 最终范围
+
+- repair r2 已通过 completed/transport：2ee469011e66b6bedcf6e9d87c8b1c026f7a8cef，仅三个测试文件；主模型审阅与独立重放通过。
+- Backend PR #226 已合入 508288fbed318ec808b1da1145417d062f9e0ce2；精确候选 910d8e5fd20747eebc6e53b5fc0118185cb53765 的 ci/vet-and-test、governance 全部 GATE success；来源 /tmp/pr651-backend-gate.json 与 /tmp/pr651-backend-merged.json。
+- 新版 Backend 同时包含尚待 Dev 组合采用的 O2 依赖，已有独立 PR #653；本规范 PR 不推进 gitlink，以免提前采用另一任务的运行时组合。#651 在最新 main 上重新验证，Backend 修复的已合入与 Dev 已采用分别记录。
+- 交付窗口 mq-dev-20261020-conversation-handoff-01 已在 #518 领取；此前 #652 已释放。当前需 task-sync、闭合任务卡、固定候选并等待三项 GATE。
+| 同步（记录前对象） | 17f8bc06c110014b9101e7a33729d9f5445bd123 | d0150787e2ba7fec94575e42c9bea2f945418c71 | 2026-10-20T09:20:53Z |
+
+<!-- Local receipt: SELF. Digests detect corruption; they do not authenticate a reviewer or CI. -->
+```json
+{
+  "summary_schema": 1,
+  "source": "SELF",
+  "timestamp": "2026-10-20T09:20:09.212113+00:00",
+  "command": "make task-sync",
+  "exit_code": 0,
+  "cwd": "/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff",
+  "before_head": "0dd24cafc6024d5854957ff8f5b6ecb2c65d3c72",
+  "after_head": "11245d172c6841a17696a041889b8dbc4d8807a7",
+  "branch": "feature/conversation-handoff",
+  "target_branch": "main",
+  "target_head": "17f8bc06c110014b9101e7a33729d9f5445bd123",
+  "root_target": "main",
+  "immediate_target": "main",
+  "before_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "after_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "output_tail": [
+    " create mode 100644 .task/archive/feature-fast-slow-o2-i1-agent-native.md",
+    " create mode 100644 .task/archive/feature-fast-slow-o2-i2-backend.md",
+    " create mode 100644 docs/superpowers/specs/2026-10-20-fast-slow-o2-i1-review.md",
+    " create mode 100644 docs/superpowers/specs/2026-10-20-fast-slow-o2-i2-review.md",
+    "[worktree] before-update: recursive component checks passed",
+    "[worktree] materialize: recursive component checks passed",
+    "[worktree] after-sync: recursive component checks passed",
+    "admit: ok",
+    "[evidence] WARN JSON receipt line 113: recorded HEAD predates non-card changes ——关键检查须重跑并以 make evidence 重新写入",
+    "[evidence] WARN JSON receipt line 168: recorded HEAD predates non-card changes ——关键检查须重跑并以 make evidence 重新写入",
+    "[evidence] WARN JSON receipt line 210: recorded HEAD predates non-card changes ——关键检查须重跑并以 make evidence 重新写入",
+    "[evidence] WARN JSON receipt line 251: recorded HEAD predates non-card changes ——关键检查须重跑并以 make evidence 重新写入",
+    "[synced] sync_base=17f8bc06c110014b9101e7a33729d9f5445bd123 tested_head=11245d172c6841a17696a041889b8dbc4d8807a7 checked_at=2026-10-20T09:20:53Z changed=1 sync_target=main",
+    "[next] 跑正式验收（make test 等），证据写入任务卡",
+    "make[1]: Leaving directory '/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff'"
+  ],
+  "output_sha256": "447fa8d3b023bd473ca8076ad32b77ac406c86f6ff097e032b1c602e7a4649c6",
+  "receipt_sha256": "faa7ddd69578d19c3c5280c5633868612431065be8ad6d74c37f15eca7642427",
+  "receipt_path": "/home/weichen/.cache/agent-system-dev/evidence/faa7ddd69578d19c3c5280c5633868612431065be8ad6d74c37f15eca7642427.json"
+}
+```
+
+<!-- Local receipt: SELF. Digests detect corruption; they do not authenticate a reviewer or CI. -->
+```json
+{
+  "summary_schema": 1,
+  "source": "SELF",
+  "timestamp": "2026-10-20T09:21:27.020003+00:00",
+  "command": "python3 /tmp/pr651-doc-check.py && make agent-exec-validate && make test-worktree",
+  "exit_code": 0,
+  "cwd": "/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff",
+  "before_head": "11245d172c6841a17696a041889b8dbc4d8807a7",
+  "after_head": "11245d172c6841a17696a041889b8dbc4d8807a7",
+  "branch": "feature/conversation-handoff",
+  "target_branch": "main",
+  "target_head": "17f8bc06c110014b9101e7a33729d9f5445bd123",
+  "root_target": "main",
+  "immediate_target": "main",
+  "before_tracked_diff_sha256": "56ecb85dcdac1667ad1f575d1021a6f5306fabf593cfa8326465e9997f56c62e",
+  "after_tracked_diff_sha256": "56ecb85dcdac1667ad1f575d1021a6f5306fabf593cfa8326465e9997f56c62e",
+  "output_tail": [
+    "tested Dev HEAD 11245d172c6841a17696a041889b8dbc4d8807a7",
+    "PASS handoff fields, authoritative links, document scope and preservation of current main policies",
+    "make[1]: Entering directory '/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff'",
+    "scripts/agent-exec validate --repo .",
+    "validate: ok",
+    "make[1]: Leaving directory '/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff'",
+    "make[1]: Entering directory '/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff'",
+    "python3 scripts/check-worktree.py verify",
+    "[worktree] verify: recursive component checks passed",
+    "make[1]: Leaving directory '/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff'"
+  ],
+  "output_sha256": "e7627921f53b21804805a831022ddae38dae1b31a328efabd2ad4db6a9329638",
+  "receipt_sha256": "3f45ddbd4927efd7848281e5575c71ad8b5b411584650f5440cd9327e0c08ace",
+  "receipt_path": "/home/weichen/.cache/agent-system-dev/evidence/3f45ddbd4927efd7848281e5575c71ad8b5b411584650f5440cd9327e0c08ace.json"
+}
+```
+
+## 最终对象审阅
+
+- host Review 对同步后 11245d172c6841a17696a041889b8dbc4d8807a7 完成：相对 origin/main 的业务差异只有 AGENTS.md 一行与 policy/delivery.md 新增 22 行，另有本任务记录；现行 AGENT-EXECUTION.md 与其它 policy 无回退。
+- 需求 R1 的七项 handoff 字段、无续办例外、证据权威边界和入口链接均直接复核通过。文档没有新增平台功能，不制造业务测试。真实模型行为前后量化 NOT_RUN；当前规范交付以可审条款、链接和 GATE 为依据，不声称完成行为评测。
+- main 同步原始输出、文档检查与递归组合输出均由 make evidence 原样写入本卡。最终候选固定后只保存在源码外记录，避免为回填 CI 再改变 HEAD。
+
+<!-- Local receipt: SELF. Digests detect corruption; they do not authenticate a reviewer or CI. -->
+```json
+{
+  "summary_schema": 1,
+  "source": "SELF",
+  "timestamp": "2026-10-20T09:23:34.774230+00:00",
+  "command": "make precheck",
+  "exit_code": 0,
+  "cwd": "/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff",
+  "before_head": "2aad4bc2acf0cf7fb29ce5df604bcaff83c054bd",
+  "after_head": "2aad4bc2acf0cf7fb29ce5df604bcaff83c054bd",
+  "branch": "feature/conversation-handoff",
+  "target_branch": "main",
+  "target_head": "17f8bc06c110014b9101e7a33729d9f5445bd123",
+  "root_target": "main",
+  "immediate_target": "main",
+  "before_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "after_tracked_diff_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
+  "output_tail": [
+    "make[1]: Entering directory '/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff'",
+    "[repo]   branch=feature/conversation-handoff head=2aad4bc2ac",
+    "[remote] origin/main=17f8bc06c1 ahead=11 behind=0",
+    "[tree]   clean submodules_drift=0 uninit=0",
+    "[worktrees] linked=6",
+    "[initiatives] local cards (not authoritative): none",
+    "[hooks]   core.hooksPath=scripts/hooks（pre-commit/post-merge 实际接线）",
+    "[facts]   policy/facts.md 6 条事实均在有效期内",
+    "[required-reading] core/baseline.md, workflows/delivery.md §1, policy/delivery.md",
+    "[R0] 17f8bc06c1（完整：17f8bc06c110014b9101e7a33729d9f5445bd123）",
+    "[worktree] before-sync: recursive component checks passed",
+    "[verdict] READY — 保留本次 precheck receipt 后建任务工作区：PRECHECK_RECEIPT=/tmp/task-precheck.json make task-start NAME=feature/your-branch",
+    "make[1]: Leaving directory '/home/weichen/projects/Agent-System-Dev-wt-feature-conversation-handoff'"
+  ],
+  "output_sha256": "df04e4a972fd4f2eec24c391d8892c85698ca0f00fe9950df3d4b91c27df48a2",
+  "receipt_sha256": "f676ac17f42a3634b98cc3287cb7f891df70b5361970c14c4bd3dcd77a6290fa",
+  "receipt_path": "/home/weichen/.cache/agent-system-dev/evidence/f676ac17f42a3634b98cc3287cb7f891df70b5361970c14c4bd3dcd77a6290fa.json"
+}
+```
+
+## 闭合记录（合入前折叠）
+
+- 本卡在 PR #651（https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/651）合入前闭合并归档，随该 PR 一同合入。
+- 该 PR 的合并提交即本任务的落地记录。
+- 合入后无需回填，也无需单独的闭合 PR。

AGENTS.md

@@ -44,6 +44,7 @@
 - 智能体完成 Review、解决冲突并确认当前 HEAD 必需 CI 通过后执行合入，无需另请人工操作。
 - 合入后仅在已登记任务 worktree 根目录、确认所有写者退出后回收；父子仓改动与未跟踪/ignored 唯一文件先保存或处置，删除被拒时保留现场，禁止强删兜底。
 - 放弃未合入工作用 `make task-finish ABANDON="--abandon <原因>"` 并记录原因，不豁免现场保护。
+- 每次结束用户任务，最终回复末尾附简短自包含的交接块，供清空上下文后续办；它只是摘要，不替代任务卡、持久交接或证据。无仓库变更也无续办状态时，写一行明确的“不适用”。字段与细则见 [对话收尾交接块](policy/delivery.md#对话收尾交接块)。
 - 首次克隆后运行 `make setup` 启用本地钩子；治理脚本改动须运行 `make test-governance`（见 [持续回归](policy/governance.md#持续回归)）。
 - 命令与细则：[启动与恢复](policy/governance.md#启动与恢复)、[回收](policy/governance.md#回收)、[两级分支与分流](policy/delivery.md#两级分支交付模型与分流检查)、[分级门禁](policy/delivery.md#层级任务通道与分级门禁)、[合入调度](policy/delivery.md#合入调度)、[Review 与合入](policy/delivery.md#智能体-review-与-pr-合入)。
 

policy/delivery.md

@@ -462,3 +462,25 @@ post-merge 默认只提示，不因 pull 或 merge 自动提交、推送或创
 
 中断或交接时记录当前有效版本、批准范围、未决假设、最新试验结论、剩余事项及下一动作。
 恢复后核对现场和授权，从最早未满足的环节续办；不重做仍有效的工作，不省略失效环节。
+
+### 对话收尾交接块
+
+每次结束用户任务时，最终对话回复的末尾都附一个简短、自包含的交接块，让对话上下文被清空后，
+新会话只读这一块和其中的链接就能续办。交接块只是对话层的摘要：权威仍然是任务卡、持久阶段交接
+（见[有界单元包、上下文与阶段交接](#有界单元包上下文与阶段交接)）和 evidence 记录。交接块不替代
+这些记录或证据，不得把仅写在回复里的内容声称为已记录、已验证，不手抄命令输出，二者不一致时以
+任务记录为准。
+
+交接块只写续办所需的最少字段，没有的内容不编造：
+
+- **目标与授权范围**：本次目标、已授权的动作与写入对象、交付终点。
+- **当前状态**：已完成、进行中、阻塞或放弃；有仓库时写仓库、分支、HEAD SHA，以及 PR 和任务卡路径。
+- **关键决定**：影响后续工作的取舍及其依据。
+- **变更文件**：路径列表，或写明无变更。
+- **验证与证据状态**：执行过的检查及结果，标注 `SELF`/`GATE`/`REPLAY`，并指向任务卡里的 evidence
+  记录；没有执行的写 `NOT_RUN`，无法复核的写 `[未经证实]`。
+- **未决事项**：阻塞、待决策点、已登记的非阻塞项。
+- **下一动作**：一条明确的下一步，或明确写出“已完成，无后续”。
+
+没有仓库变更、也没有续办状态的工作（例如纯问答或只读解释），只写一行明确的不适用交接，例如
+`交接：不适用（无仓库变更、无续办状态）`，不为凑齐字段而填充内容。