diff --git a/.agent-taskgraph/ROLES.md b/.agent-taskgraph/ROLES.md
index 4b2a67c0..b68d79b1 100644
--- a/.agent-taskgraph/ROLES.md
+++ b/.agent-taskgraph/ROLES.md
@@ -7,7 +7,7 @@
 | p91-game-designer | P9.1 游戏策划 | persistent | available | 六组合首局玩法、取舍、节奏和结果 | none | none | 2026-08-13 |
 | p91-ux-visual-designer | P9.1 UX/视觉设计师 | persistent | available | 横屏页面、状态、中文因果表达与动效 | none | none | 2026-08-13 |
 | p91-runtime-architect | P9.1 技术架构师 | persistent | available | 运行时拆分、API、状态所有权和迁移 | none | none | 2026-08-13 |
-| p91-runtime-foundation-developer | 运行时基础开发 | persistent | reserved | 行为等价拆分与并行扩展边界 | task:ABG-P9.1-RUNTIME-FOUNDATION | PENDING | 2026-08-13 |
+| p91-runtime-foundation-developer | 运行时基础开发 | persistent | reserved | 行为等价拆分与并行扩展边界 | task:ABG-P9.1-RUNTIME-FOUNDATION | c70ab47f-b764-42a1-b4b5-2eab342e8b25 | 2026-08-13 |
 | p91-domain-developer | 领域逻辑开发 | persistent | available | 六组合领域状态和事务 | PENDING | PENDING | 2026-08-13 |
 | p91-ui-developer | Godot UI 开发 | persistent | available | P9.1 真实页面与反馈 | PENDING | PENDING | 2026-08-13 |
 | p91-test-developer | 测试与证据开发 | persistent | available | 矩阵、触摸、布局与捕获工具 | PENDING | PENDING | 2026-08-13 |
diff --git a/.agent-taskgraph/STATUS.md b/.agent-taskgraph/STATUS.md
index 94c9c1a3..43aab626 100644
--- a/.agent-taskgraph/STATUS.md
+++ b/.agent-taskgraph/STATUS.md
@@ -3,12 +3,12 @@
 | 任务 ID | 标题 | 状态 | 负责人 | 轮次 | 最后更新 | 卡点 |
 |---|---|---|---|---|---|---|
 
-| ABG-P9.1-RUNTIME-FOUNDATION | P9.1 behavior-equivalent runtime foundation extraction | inbox | p91-runtime-foundation-developer | product 1 / recovery 4 | 2026-08-13T02:18:00Z | full contract-r2/context-r4 PENDING identity committed before HAPI reuse |
+| ABG-P9.1-RUNTIME-FOUNDATION | P9.1 behavior-equivalent runtime foundation extraction | inbox | p91-runtime-foundation-developer | product 1 / recovery 4 | 2026-08-13T02:29:45Z | HAPI c70ab47f reuse VERIFIED; attempt-4 bootstrap pending |
 
 ## 当前批次总结
 
 - 批次：`abg-p9-1-continuous-development-01`。
 - 已完成：三份专家规格已推送；PMO 当前冻结 authority 为 `p9.1-contract-r2`（权威 22-test baseline）。
 - 视觉切片：candidate `0c640eb` 已作为 `71b7f71` 集成；六帧 844x390，付费使用 0/4、USD 0/5，Owner visual gate 仍开放。
-- 当前 Gate：Foundation attempt-4 inbox，等待同一 HAPI 会话重新验证和 exact identity ACK。
+- 当前 Gate：Foundation attempt-4 inbox，HAPI reuse 已验证，等待 exact identity ACK。
 - 结束 Gate：独立 reviewer PASS 后发布新 H5，Owner 再判断理解、乐趣和继续意愿。
diff --git a/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/dispatch.md b/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/dispatch.md
index 038e013a..47f13c74 100644
--- a/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/dispatch.md
+++ b/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/dispatch.md
@@ -12,10 +12,10 @@
 | Context manifest | context.md |
 | Context revision | p91-runtime-foundation-r4 |
 | Continuity | attempts 1-3 ended before product writes; attempt-4 is a clean redispatch from contract-r2 and source e9fe1bc |
-| Session ID | PENDING |
+| Session ID | c70ab47f-b764-42a1-b4b5-2eab342e8b25 |
 | Expected identity ACK | IDENTITY_READY dispatch_id=dispatch:ABG-P9.1-RUNTIME-FOUNDATION:attempt-4 role=role:p91-runtime-foundation-developer team_revision=rev-p9.1-1 goal=task:ABG-P9.1-RUNTIME-FOUNDATION context_revision=p91-runtime-foundation-r4 |
 | Delivery | NOT_SENT |
 | Identity ACK | PENDING |
-| ACK evidence | PENDING |
+| ACK evidence | HAPI pre-redispatch verification `41d0e0b0-a471-41b5-9450-2819583b58e6`; message watermark seq 125 before attempt-4 bootstrap; session c70ab47f-b764-42a1-b4b5-2eab342e8b25 |
 
 Read Role, PROJECT, context, Goal and direct evidence in that order. Return the exact identity ACK before executing the Goal.
diff --git a/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/goal.md b/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/goal.md
index ac5a20b4..4ebe0b67 100644
--- a/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/goal.md
+++ b/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/goal.md
@@ -33,9 +33,9 @@ Behavior-equivalently extract the architect-defined P9.1 foundation from runtime
 - 连续性：attempts 1-3 ended before product writes; attempt-4 is a clean redispatch from contract-r2 and source e9fe1bc
 - 工作区：`/Users/wusumac/Documents/game/tmp/aetherbound-guild-worktrees/p91-runtime-foundation`（分支：`agent/abg-p91-runtime-foundation`）
 - Runtime requested：`runtime=hapi; flavor=codex; model=gpt-5.6-sol; effort=xhigh; permission=yolo; visibility=visible`
-- Runtime observed：`PENDING`
-- Runtime verification：`PENDING`
-- Session evidence：`PENDING`
+- Runtime observed：`runtime=hapi; flavor=codex; model=gpt-5.6-sol; effort=xhigh; permission=yolo; visibility=visible`
+- Runtime verification：`VERIFIED pre-redispatch; verification 41d0e0b0-a471-41b5-9450-2819583b58e6; message watermark seq 125`
+- Session evidence：`HAPI c70ab47f-b764-42a1-b4b5-2eab342e8b25; PID 31232; runtime-evidence.json`
 - Dispatch bootstrap：`dispatch.md`
 - Dispatch message：`NOT_SENT`
 - Identity ACK：`PENDING`
diff --git a/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/ledger.md b/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/ledger.md
index 3dfa24ef..befdd528 100644
--- a/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/ledger.md
+++ b/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/ledger.md
@@ -21,18 +21,18 @@
 | 分配理由 | 职责匹配 |
 | 轮次 | product 1; dispatch recovery 4; prior product work zero-write |
 | 开始时间 | 2026-08-13T01:31:53+00:00 |
-| 最后更新 | 2026-08-13T02:18:00+00:00 |
+| 最后更新 | 2026-08-13T02:29:45+00:00 |
 | 验收结果 | PENDING attempt-4; prior attempt-2 terminal retained as INVALID_CONTRACT_BASELINE; attempt-3 identity mismatch retained |
 | 日志指针 | /tmp/abg-p91-foundation-baseline-efffb7b/logs/p9_0_boot_title_test.log; retained R10 summary SHA-256 3de791bb6da14be19d97c194368cd14bc8bfb906013470e81b6e12da83736bf7 |
 | Runtime requested | runtime=hapi; flavor=codex; model=gpt-5.6-sol; effort=xhigh; permission=yolo; visibility=visible |
-| Runtime observed | PENDING |
-| Runtime verification | PENDING |
-| Session ID | PENDING |
-| Runtime evidence | PENDING |
+| Runtime observed | runtime=hapi; flavor=codex; model=gpt-5.6-sol; effort=xhigh; permission=yolo; visibility=visible |
+| Runtime verification | VERIFIED pre-redispatch; verification 41d0e0b0-a471-41b5-9450-2819583b58e6; message watermark seq 125 |
+| Session ID | c70ab47f-b764-42a1-b4b5-2eab342e8b25 |
+| Runtime evidence | runtime-evidence.json |
 | Dispatch bootstrap | dispatch.md |
 | Dispatch message | NOT_SENT |
 | Identity ACK | PENDING |
-| 等待归属 | 在等谁：PMO；等什么：attempt-4 HAPI reuse verification and exact IDENTITY_READY；ACK 前不实现 |
+| 等待归属 | 在等谁：HAPI c70ab47f；等什么：attempt-4 bootstrap 后 exact IDENTITY_READY；ACK 前不实现 |
 
 ## 备注
 
@@ -48,3 +48,4 @@ Prepared from task-manifest.json. Do not hand-edit field names.
 | 2026-08-13T01:41:00+00:00 | inbox -> active | PMO | HAPI c70ab47f exact attempt-2 IDENTITY_READY after pre-redispatch VERIFIED | fast-forward activation commit, then execute Goal |
 | 2026-08-13T02:04:00+00:00 | active -> active | PMO | zero-write terminal exposed PMO's 26-script contract error; retained R10 summary proves exact 22 scripts | freeze contract-r2, require fresh attempt-3 identity, rerun Step 0 |
 | 2026-08-13T02:18:00+00:00 | active -> inbox | PMO | attempt-3 found PROJECT/identity records incompletely aligned; product worktree remained clean | commit complete r2/r4 PENDING identity, then verify same HAPI session for attempt-4 |
+| 2026-08-13T02:29:45+00:00 | inbox -> inbox | PMO | HAPI reuse VERIFIED at correct cwd/model/effort/yolo; watermark seq 125 | commit binding, fast-forward worker branch, send attempt-4 bootstrap |
diff --git a/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/runtime-evidence.json b/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/runtime-evidence.json
new file mode 100644
index 00000000..39ec2196
--- /dev/null
+++ b/.agent-taskgraph/queue/inbox/ABG-P9.1-RUNTIME-FOUNDATION/runtime-evidence.json
@@ -0,0 +1,39 @@
+{
+  "status": "VERIFIED",
+  "phase": "pre-redispatch",
+  "verification_id": "41d0e0b0-a471-41b5-9450-2819583b58e6",
+  "goal_ref": "task:ABG-P9.1-RUNTIME-FOUNDATION",
+  "session_id": "c70ab47f-b764-42a1-b4b5-2eab342e8b25",
+  "machine_id": "a15888ad-d405-4884-a407-c28ddd8b397c",
+  "machine_name": "小吴家",
+  "machine_host": "wusumacdeMac-mini.local",
+  "pid": "31232",
+  "flavor": "codex",
+  "cwd": "/Users/wusumac/Documents/game/tmp/aetherbound-guild-worktrees/p91-runtime-foundation",
+  "model": "gpt-5.6-sol",
+  "effort": "xhigh",
+  "permission": "yolo",
+  "messages_received": 1,
+  "message_watermark": {
+    "latest_page_count": 1,
+    "latest_message_id": "f0fc7615-db23-4b71-baf1-75c255a665c4",
+    "snapshot_head_seq": 125,
+    "snapshot_head_at": 1786587144577,
+    "epoch": 0,
+    "captured_at": "2026-08-13T02:29:45.354732+00:00"
+  },
+  "active": true,
+  "thinking": false,
+  "lifecycle": "running",
+  "catalog": {
+    "status": "VERIFIED",
+    "source": "/api/machines/:id/codex-models",
+    "checked_at": "2026-08-13T02:29:45.075248+00:00",
+    "model": "gpt-5.6-sol",
+    "effort": "xhigh",
+    "model_supported": true,
+    "effort_supported": true
+  },
+  "evidence": "HAPI Hub session metadata, model catalog, and message watermark",
+  "verified_at": "2026-08-13T02:29:45.354773+00:00"
+}
diff --git a/.agent-taskgraph/roles/p91-runtime-foundation-developer/ROLE.md b/.agent-taskgraph/roles/p91-runtime-foundation-developer/ROLE.md
index 4f5148d9..db782efd 100644
--- a/.agent-taskgraph/roles/p91-runtime-foundation-developer/ROLE.md
+++ b/.agent-taskgraph/roles/p91-runtime-foundation-developer/ROLE.md
@@ -11,6 +11,6 @@
 | 负责范围 | Goal-defined foundation paths and shared entry during its exclusive stage |
 | 明确不负责 | Product redesign, PMO state, packaging or release |
 | 当前 Goal | task:ABG-P9.1-RUNTIME-FOUNDATION |
-| 当前 Session ID | PENDING |
+| 当前 Session ID | c70ab47f-b764-42a1-b4b5-2eab342e8b25 |
 | 连续性记录 | attempts 1-3 ended before product writes; attempt-4 is a clean redispatch from contract-r2 and source e9fe1bc |
 | 最后更新 | 2026-08-13 / PMO |