diff --git a/apps/api/tests/test_delivery_closure_workbench_api.py b/apps/api/tests/test_delivery_closure_workbench_api.py
index 29be7ecb0..5f7665eba 100644
--- a/apps/api/tests/test_delivery_closure_workbench_api.py
+++ b/apps/api/tests/test_delivery_closure_workbench_api.py
@@ -212,7 +212,7 @@ def test_delivery_closure_workbench_endpoint_returns_product_summary():
     assert lanes["production_deploy"]["blocker_count"] == 4
     assert lanes["production_deploy"]["metric"][
         "observed_source_control_main_short_sha"
-    ] == "76071f21a811"
+    ] == "7191193c71e"
     assert lanes["production_deploy"]["metric"][
         "production_image_tag_short_sha"
     ] == "af45811e87"
diff --git a/docs/LOGBOOK.md b/docs/LOGBOOK.md
index 76c6c1988..15e81d6d6 100644
--- a/docs/LOGBOOK.md
+++ b/docs/LOGBOOK.md
@@ -1,3 +1,12 @@
+## 2026-06-29 — 10:44 non-110 CD closure verifier snapshot fallback
+
+**完成內容**：
+- `ops/runner/verify-awoooi-non110-cd-closure.py` 在未提供 fresh readiness file 時，會退回 committed production deploy snapshot 內的 sanitized non-110 readiness 欄位，輸出 `non110_runner_readiness_source=committed_production_deploy_snapshot`。
+- 補測試覆蓋缺 readiness file 但有 deploy snapshot 時的 fail-closed 結果；狀態會是 `blocked_non110_runner_not_ready`，不再只停在 `blocked_missing_non110_readiness_readback`。
+- 更新 production deploy snapshot / README，將 verifier command 明確包含 `--production-deploy-snapshot-json-file`；刷新 source readback 觀測 SHA 為 `7191193c71e`。
+
+**邊界**：只改 committed source / snapshot / tests / docs；未使用 GitHub；未讀 token / `.runner` 內容 / cookie / session / secret；未操作 host / Docker / K8s / runner service；未 workflow_dispatch。snapshot fallback 只代表 source-level fail-closed evidence，不代表 live host proof。
+
 ## 2026-06-29 — 10:31 non-110 CD closure verifier contract
 
 **完成內容**：
diff --git a/docs/operations/awoooi-production-deploy-readback-blocker.snapshot.json b/docs/operations/awoooi-production-deploy-readback-blocker.snapshot.json
index c2493e75e..da3649973 100644
--- a/docs/operations/awoooi-production-deploy-readback-blocker.snapshot.json
+++ b/docs/operations/awoooi-production-deploy-readback-blocker.snapshot.json
@@ -1,12 +1,12 @@
 {
   "schema_version": "awoooi_production_deploy_readback_blocker_v1",
-  "generated_at": "2026-06-29T10:31:17+08:00",
+  "generated_at": "2026-06-29T10:44:45+08:00",
   "status": "blocked_waiting_authorized_gitea_workflow_dispatch_and_runner_queue",
   "priority": "P0",
   "scope": "awoooi_production_truth",
   "readback": {
-    "observed_source_control_main_sha": "76071f21a811fe3c28998fa384e5beacd412c2f7",
-    "observed_source_control_main_short_sha": "76071f21a811",
+    "observed_source_control_main_sha": "7191193c71e5c82d6ae703a9c530d676862aa178",
+    "observed_source_control_main_short_sha": "7191193c71e",
     "governance_closure_merge_sha": "27b96f0450d0e3ca6651d6b5f274a341dd727ef2",
     "governance_closure_commit_sha": "9e3e7fbb6ba3ffd324b45abf3ad1e7b6ec826b22",
     "production_image_tag_sha": "af45811e876fda322ee63c036fbc39c9f07ffd76",
@@ -30,7 +30,7 @@
     "public_actions_queue_readback_schema_version": "awoooi_public_gitea_actions_queue_readback_v1",
     "public_actions_queue_readback_verifier": "ops/runner/read-public-gitea-actions-queue.py --json",
     "non110_runner_cd_closure_verifier_schema_version": "awoooi_non110_cd_closure_verifier_v1",
-    "non110_runner_cd_closure_verifier": "ops/runner/verify-awoooi-non110-cd-closure.py --readiness-file <sanitized-non110-readiness.txt> --queue-json-file <public-actions-queue.json> --production-workbench-json-file <delivery-closure-workbench.json> --json",
+    "non110_runner_cd_closure_verifier": "ops/runner/verify-awoooi-non110-cd-closure.py --production-deploy-snapshot-json-file docs/operations/awoooi-production-deploy-readback-blocker.snapshot.json --readiness-file <sanitized-non110-readiness.txt> --queue-json-file <public-actions-queue.json> --production-workbench-json-file <delivery-closure-workbench.json> --json",
     "non110_runner_cd_closure_status": "blocked_non110_runner_not_ready",
     "non110_runner_cd_closure_required": true,
     "current_main_cd_run_visible": false,
diff --git a/ops/runner/README.md b/ops/runner/README.md
index 80ba6a987..edeb5d0f4 100644
--- a/ops/runner/README.md
+++ b/ops/runner/README.md
@@ -516,6 +516,7 @@ sanitized evidence 彙整 verifier：
 
 ```bash
 python3 ops/runner/verify-awoooi-non110-cd-closure.py \
+  --production-deploy-snapshot-json-file docs/operations/awoooi-production-deploy-readback-blocker.snapshot.json \
   --readiness-file /path/to/sanitized-non110-readiness.txt \
   --queue-json-file /path/to/public-actions-queue.json \
   --production-workbench-json-file /path/to/delivery-closure-workbench.json \
@@ -525,6 +526,10 @@ python3 ops/runner/verify-awoooi-non110-cd-closure.py \
 此 verifier 只接受 `check-awoooi-non110-runner-readiness.sh` 的非 secret 輸出、
 public queue JSON 與 production Delivery Workbench JSON/API；它不讀 `.runner`
 內容、不讀 token、不 workflow_dispatch、不操作 host / Docker / K8s / runner service。
+若沒有傳入 fresh readiness file，verifier 只會退回 committed production deploy
+snapshot 內的 sanitized non-110 readiness 欄位，並輸出
+`non110_runner_readiness_source=committed_production_deploy_snapshot`；這只代表
+source-level fail-closed evidence，不是 live host proof。
 只有 `AWOOOI_NON110_RUNNER_READY=1`、public queue 不再顯示
 `No matching online runner`、production image tag 已跟 main 對齊且 governance fields
 已出現時，才會輸出 `closure_verified`。
diff --git a/ops/runner/test_verify_awoooi_non110_cd_closure.py b/ops/runner/test_verify_awoooi_non110_cd_closure.py
index f89696dea..0ca90eaab 100644
--- a/ops/runner/test_verify_awoooi_non110_cd_closure.py
+++ b/ops/runner/test_verify_awoooi_non110_cd_closure.py
@@ -57,6 +57,26 @@ def _workbench(*, image_current: bool, governance_ready: bool) -> dict:
     }
 
 
+def _deploy_snapshot() -> dict:
+    return {
+        "schema_version": "awoooi_production_deploy_readback_blocker_v1",
+        "readback": {
+            "non110_runner_ready": False,
+            "non110_runner_ready_config_count": 1,
+            "non110_runner_ready_binary_count": 1,
+            "non110_runner_ready_registration_count": 0,
+            "non110_runner_ready_service_count": 1,
+            "non110_runner_ready_active_service_count": 0,
+            "non110_runner_ready_autostart_path_count": 1,
+            "non110_runner_remaining_blockers": [
+                "runner_registration_missing",
+                "runner_service_not_active",
+            ],
+            "non110_runner_safe_next_step": "run_register_awoooi_non110_runner_script_without_printing_token_then_autostart_path_will_enable_service_and_rerun_this_verifier",
+        },
+    }
+
+
 def _readiness(*, ready: bool) -> str:
     if ready:
         return "\n".join(
@@ -116,6 +136,32 @@ def test_closure_verifier_blocks_queue_after_runner_ready() -> None:
     assert "public_queue_still_has_no_matching_online_runner" in payload["blockers"]
 
 
+def test_closure_verifier_uses_deploy_snapshot_when_readiness_file_missing() -> None:
+    module = _load_module()
+    payload = module.build_closure_verifier(
+        readiness_text="",
+        queue=_queue(no_matching=True),
+        production_workbench=_workbench(image_current=False, governance_ready=False),
+        production_deploy_snapshot=_deploy_snapshot(),
+    )
+    assert payload["status"] == "blocked_non110_runner_not_ready"
+    assert payload["readback"]["non110_runner_readiness_source"] == (
+        "committed_production_deploy_snapshot"
+    )
+    assert payload["readback"]["non110_runner_ready_config_count"] == 1
+    assert payload["readback"]["non110_runner_ready_registration_count"] == 0
+    assert payload["runner_readiness_blockers"] == [
+        "runner_registration_missing",
+        "runner_service_not_active",
+    ]
+    assert (
+        payload["operation_boundaries"][
+            "committed_production_deploy_snapshot_read"
+        ]
+        is True
+    )
+
+
 def test_closure_verifier_accepts_full_closure_evidence() -> None:
     module = _load_module()
     payload = module.build_closure_verifier(
@@ -162,3 +208,41 @@ def test_cli_uses_fixture_files_without_live_dispatch(tmp_path: Path) -> None:
     assert payload["status"] == "blocked_non110_runner_not_ready"
     assert payload["operation_boundaries"]["workflow_dispatch_performed"] is False
     assert payload["operation_boundaries"]["github_api_used"] is False
+
+
+def test_cli_uses_deploy_snapshot_without_readiness_file(tmp_path: Path) -> None:
+    queue_path = tmp_path / "queue.json"
+    snapshot_path = tmp_path / "deploy-snapshot.json"
+    workbench_path = tmp_path / "workbench.json"
+    queue_path.write_text(json.dumps(_queue(no_matching=True)), encoding="utf-8")
+    snapshot_path.write_text(json.dumps(_deploy_snapshot()), encoding="utf-8")
+    workbench_path.write_text(
+        json.dumps(_workbench(image_current=False, governance_ready=False)),
+        encoding="utf-8",
+    )
+
+    result = subprocess.run(
+        [
+            sys.executable,
+            str(SCRIPT),
+            "--production-deploy-snapshot-json-file",
+            str(snapshot_path),
+            "--queue-json-file",
+            str(queue_path),
+            "--production-workbench-json-file",
+            str(workbench_path),
+            "--json",
+        ],
+        check=False,
+        text=True,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+    )
+
+    assert result.returncode == 1
+    payload = json.loads(result.stdout)
+    assert payload["status"] == "blocked_non110_runner_not_ready"
+    assert payload["readback"]["non110_runner_readiness_source"] == (
+        "committed_production_deploy_snapshot"
+    )
+    assert payload["operation_boundaries"]["raw_runner_registration_read"] is False
diff --git a/ops/runner/verify-awoooi-non110-cd-closure.py b/ops/runner/verify-awoooi-non110-cd-closure.py
index d04a8a1e8..a35372782 100755
--- a/ops/runner/verify-awoooi-non110-cd-closure.py
+++ b/ops/runner/verify-awoooi-non110-cd-closure.py
@@ -13,6 +13,9 @@ from typing import Any
 SCHEMA_VERSION = "awoooi_non110_cd_closure_verifier_v1"
 ROOT = Path(__file__).resolve().parents[2]
 PUBLIC_QUEUE_READER = ROOT / "ops/runner/read-public-gitea-actions-queue.py"
+DEFAULT_PRODUCTION_DEPLOY_SNAPSHOT = (
+    ROOT / "docs/operations/awoooi-production-deploy-readback-blocker.snapshot.json"
+)
 DEFAULT_PRODUCTION_WORKBENCH_URL = (
     "https://awoooi.wooo.work/api/v1/agents/delivery-closure-workbench"
 )
@@ -70,6 +73,12 @@ def _int(value: Any) -> int:
         return 0
 
 
+def _strings(value: Any) -> list[str]:
+    if not isinstance(value, list):
+        return []
+    return [str(item) for item in value if str(item)]
+
+
 def parse_readiness_text(text: str) -> dict[str, Any]:
     key_values: dict[str, str] = {}
     blockers: list[str] = []
@@ -91,6 +100,7 @@ def parse_readiness_text(text: str) -> dict[str, Any]:
 
     return {
         "provided": bool(text.strip()),
+        "source": "sanitized_readiness_text" if text.strip() else "",
         "ready": key_values.get("AWOOOI_NON110_RUNNER_READY") == "1",
         "blockers": blockers,
         "warnings": warnings,
@@ -114,6 +124,34 @@ def parse_readiness_text(text: str) -> dict[str, Any]:
     }
 
 
+def readiness_from_production_deploy_snapshot(snapshot: dict[str, Any]) -> dict[str, Any]:
+    readback = snapshot.get("readback") if isinstance(snapshot.get("readback"), dict) else {}
+    if "non110_runner_ready" not in readback:
+        return parse_readiness_text("")
+
+    return {
+        "provided": True,
+        "source": "committed_production_deploy_snapshot",
+        "ready": readback.get("non110_runner_ready") is True,
+        "blockers": _strings(readback.get("non110_runner_remaining_blockers")),
+        "warnings": [],
+        "ready_config_count": _int(readback.get("non110_runner_ready_config_count")),
+        "ready_binary_count": _int(readback.get("non110_runner_ready_binary_count")),
+        "ready_registration_count": _int(
+            readback.get("non110_runner_ready_registration_count")
+        ),
+        "ready_service_count": _int(readback.get("non110_runner_ready_service_count")),
+        "ready_active_service_count": _int(
+            readback.get("non110_runner_ready_active_service_count")
+        ),
+        "ready_autostart_path_count": _int(
+            readback.get("non110_runner_ready_autostart_path_count")
+        ),
+        "raw_runner_registration_read": False,
+        "safe_next_step": str(readback.get("non110_runner_safe_next_step") or ""),
+    }
+
+
 def _production_summary(workbench: dict[str, Any]) -> dict[str, Any]:
     summary = workbench.get("summary")
     return summary if isinstance(summary, dict) else {}
@@ -124,8 +162,13 @@ def build_closure_verifier(
     readiness_text: str,
     queue: dict[str, Any],
     production_workbench: dict[str, Any],
+    production_deploy_snapshot: dict[str, Any] | None = None,
 ) -> dict[str, Any]:
     readiness = parse_readiness_text(readiness_text)
+    if not readiness["provided"] and production_deploy_snapshot:
+        readiness = readiness_from_production_deploy_snapshot(
+            production_deploy_snapshot
+        )
     queue_readback = queue.get("readback") if isinstance(queue.get("readback"), dict) else {}
     queue_boundaries = (
         queue.get("operation_boundaries")
@@ -183,6 +226,7 @@ def build_closure_verifier(
         "status": status,
         "readback": {
             "non110_runner_ready": readiness["ready"],
+            "non110_runner_readiness_source": readiness["source"],
             "non110_runner_ready_config_count": readiness["ready_config_count"],
             "non110_runner_ready_binary_count": readiness["ready_binary_count"],
             "non110_runner_ready_registration_count": readiness[
@@ -243,6 +287,9 @@ def build_closure_verifier(
         "operation_boundaries": {
             "secret_or_runner_token_read": False,
             "raw_runner_registration_read": False,
+            "committed_production_deploy_snapshot_read": (
+                readiness["source"] == "committed_production_deploy_snapshot"
+            ),
             "workflow_dispatch_performed": False,
             "host_write_performed": False,
             "gitea_api_write_performed": False,
@@ -262,6 +309,10 @@ def main() -> int:
         description="Verify sanitized AWOOOI non-110 CD closure evidence."
     )
     parser.add_argument("--readiness-file", default="")
+    parser.add_argument(
+        "--production-deploy-snapshot-json-file",
+        default=str(DEFAULT_PRODUCTION_DEPLOY_SNAPSHOT),
+    )
     parser.add_argument("--queue-json-file", default="")
     parser.add_argument("--production-workbench-json-file", default="")
     parser.add_argument(
@@ -273,6 +324,9 @@ def main() -> int:
     args = parser.parse_args()
 
     readiness_text = _read_text(args.readiness_file)
+    production_deploy_snapshot = _load_json_file(
+        args.production_deploy_snapshot_json_file
+    )
     queue = (
         _load_json_file(args.queue_json_file)
         if args.queue_json_file
@@ -289,6 +343,7 @@ def main() -> int:
         readiness_text=readiness_text,
         queue=queue,
         production_workbench=production_workbench,
+        production_deploy_snapshot=production_deploy_snapshot,
     )
 
     if args.json: