diff --git a/apps/api/src/services/delivery_closure_workbench.py b/apps/api/src/services/delivery_closure_workbench.py
index f9ffd587c..94bc98410 100644
--- a/apps/api/src/services/delivery_closure_workbench.py
+++ b/apps/api/src/services/delivery_closure_workbench.py
@@ -1120,12 +1120,69 @@ def build_delivery_closure_workbench(
         if _int(lane["blocker_count"]) > 0 or _int(lane["completion_percent"]) < 80
     ][:5]
 
+    delivery_status = (
+        "blocked_delivery_actions_required" if high_risk_blocker_count else "ready"
+    )
+    current_p0_safe_next_step = str(reboot_readback.get("safe_next_step") or "")
+    current_p0_workplan_id = str(reboot_readback.get("workplan_id") or "P0-006")
+    current_p0_active_blockers = _strings(reboot_slo.get("active_blockers"))
+
     return {
         "schema_version": _SCHEMA_VERSION,
         "generated_at": max(generated_candidates) if generated_candidates else "",
-        "status": "blocked_delivery_actions_required"
-        if high_risk_blocker_count
-        else "ready",
+        "status": delivery_status,
+        "safe_next_step": current_p0_safe_next_step,
+        "active_blockers": current_p0_active_blockers,
+        "readback": {
+            "workbench_status": delivery_status,
+            "current_p0_workplan_id": current_p0_workplan_id,
+            "current_p0_source_id": "reboot_auto_recovery_slo_scorecard",
+            "current_p0_status": str(reboot_slo.get("status") or ""),
+            "current_p0_safe_next_step": current_p0_safe_next_step,
+            "current_p0_active_blockers": current_p0_active_blockers,
+            "current_p0_readiness_percent": _int(
+                reboot_rollups.get("readiness_percent")
+            ),
+            "closed_p0_workplan_ids": ["P0-003", "P0-005"],
+            "github_lane_status": "stopped_retired_do_not_use",
+            "secret_value_collection_allowed": False,
+            "workflow_trigger_authorized": False,
+            "runtime_write_authorized": False,
+        },
+        "rollups": {
+            "source_count": len(source_statuses),
+            "loaded_source_count": loaded_source_count,
+            "average_completion_percent": average_completion,
+            "high_risk_blocker_count": high_risk_blocker_count,
+            "current_p0_blocker_count": reboot_blockers,
+            "current_p0_readiness_percent": _int(
+                reboot_rollups.get("readiness_percent")
+            ),
+            "current_p0_blocked_by_fresh_reboot_window_only": (
+                reboot_rollups.get("blocked_by_fresh_reboot_window_only") is True
+            ),
+            "current_p0_service_green": reboot_rollups.get("service_green") is True,
+            "current_p0_product_data_green": (
+                reboot_rollups.get("product_data_green") is True
+            ),
+            "current_p0_backup_core_green": (
+                reboot_rollups.get("backup_core_green") is True
+            ),
+            "current_p0_stockplatform_freshness_status": str(
+                reboot_rollups.get("stockplatform_freshness_status") or ""
+            ),
+            "current_p0_stockplatform_ingestion_status": str(
+                reboot_rollups.get("stockplatform_ingestion_status") or ""
+            ),
+            "gitea_private_inventory_blocker_count": private_inventory_blockers,
+            "credential_escrow_blocker_count": credential_escrow_missing_items,
+            "production_deploy_hard_blocker_count": _int(
+                production_deploy_rollups.get("hard_blocker_count")
+            ),
+            "secret_values_collected": False,
+            "workflow_trigger_authorized": False,
+            "runtime_write_authorized": False,
+        },
         "summary": {
             "source_count": len(source_statuses),
             "loaded_source_count": loaded_source_count,
diff --git a/apps/api/tests/test_delivery_closure_workbench_api.py b/apps/api/tests/test_delivery_closure_workbench_api.py
index 9df38d051..7b946e406 100644
--- a/apps/api/tests/test_delivery_closure_workbench_api.py
+++ b/apps/api/tests/test_delivery_closure_workbench_api.py
@@ -209,6 +209,48 @@ def test_delivery_closure_workbench_exposes_p0_006_reboot_slo_lane():
 
 def _assert_delivery_workbench_shape(data: dict):
     assert data["schema_version"] == "delivery_closure_workbench_v1"
+    assert data["safe_next_step"] == (
+        "timer_and_service_data_readback_green_wait_for_next_all_host_reboot_event_"
+        "or_approved_reboot_drill_to_prove_10_minute_slo"
+    )
+    assert data["active_blockers"] == [
+        "host_boot_observation_older_than_target_window"
+    ]
+    assert data["readback"]["workbench_status"] == "blocked_delivery_actions_required"
+    assert data["readback"]["current_p0_workplan_id"] == "P0-006"
+    assert data["readback"]["current_p0_source_id"] == (
+        "reboot_auto_recovery_slo_scorecard"
+    )
+    assert data["readback"]["current_p0_status"] == (
+        "blocked_reboot_auto_recovery_slo_not_ready"
+    )
+    assert data["readback"]["current_p0_safe_next_step"] == data["safe_next_step"]
+    assert data["readback"]["current_p0_active_blockers"] == data["active_blockers"]
+    assert data["readback"]["current_p0_readiness_percent"] == 82
+    assert data["readback"]["closed_p0_workplan_ids"] == ["P0-003", "P0-005"]
+    assert data["readback"]["github_lane_status"] == "stopped_retired_do_not_use"
+    assert data["readback"]["secret_value_collection_allowed"] is False
+    assert data["readback"]["workflow_trigger_authorized"] is False
+    assert data["readback"]["runtime_write_authorized"] is False
+    assert data["rollups"]["source_count"] == 8
+    assert data["rollups"]["loaded_source_count"] == 8
+    assert data["rollups"]["high_risk_blocker_count"] == data["summary"][
+        "high_risk_blocker_count"
+    ]
+    assert data["rollups"]["current_p0_blocker_count"] == 1
+    assert data["rollups"]["current_p0_readiness_percent"] == 82
+    assert data["rollups"]["current_p0_blocked_by_fresh_reboot_window_only"] is True
+    assert data["rollups"]["current_p0_service_green"] is True
+    assert data["rollups"]["current_p0_product_data_green"] is True
+    assert data["rollups"]["current_p0_backup_core_green"] is True
+    assert data["rollups"]["current_p0_stockplatform_freshness_status"] == "ok"
+    assert data["rollups"]["current_p0_stockplatform_ingestion_status"] == "ok"
+    assert data["rollups"]["gitea_private_inventory_blocker_count"] == 0
+    assert data["rollups"]["credential_escrow_blocker_count"] == 0
+    assert data["rollups"]["production_deploy_hard_blocker_count"] == 0
+    assert data["rollups"]["secret_values_collected"] is False
+    assert data["rollups"]["workflow_trigger_authorized"] is False
+    assert data["rollups"]["runtime_write_authorized"] is False
     assert data["summary"]["source_count"] == 8
     assert data["summary"]["loaded_source_count"] == 8
     assert data["summary"]["runtime_execution_authorized"] is False
diff --git a/apps/web/src/lib/api-client.ts b/apps/web/src/lib/api-client.ts
index 408ca406b..4c9582922 100644
--- a/apps/web/src/lib/api-client.ts
+++ b/apps/web/src/lib/api-client.ts
@@ -2691,6 +2691,42 @@ export interface DeliveryClosureWorkbenchSnapshot {
   schema_version: 'delivery_closure_workbench_v1'
   generated_at: string
   status: 'blocked_delivery_actions_required' | 'ready' | string
+  safe_next_step: string
+  active_blockers: string[]
+  readback: {
+    workbench_status: string
+    current_p0_workplan_id: string
+    current_p0_source_id: string
+    current_p0_status: string
+    current_p0_safe_next_step: string
+    current_p0_active_blockers: string[]
+    current_p0_readiness_percent: number
+    closed_p0_workplan_ids: string[]
+    github_lane_status: string
+    secret_value_collection_allowed: boolean
+    workflow_trigger_authorized: boolean
+    runtime_write_authorized: boolean
+  }
+  rollups: {
+    source_count: number
+    loaded_source_count: number
+    average_completion_percent: number
+    high_risk_blocker_count: number
+    current_p0_blocker_count: number
+    current_p0_readiness_percent: number
+    current_p0_blocked_by_fresh_reboot_window_only: boolean
+    current_p0_service_green: boolean
+    current_p0_product_data_green: boolean
+    current_p0_backup_core_green: boolean
+    current_p0_stockplatform_freshness_status: string
+    current_p0_stockplatform_ingestion_status: string
+    gitea_private_inventory_blocker_count: number
+    credential_escrow_blocker_count: number
+    production_deploy_hard_blocker_count: number
+    secret_values_collected: boolean
+    workflow_trigger_authorized: boolean
+    runtime_write_authorized: boolean
+  }
   summary: {
     source_count: number
     loaded_source_count: number
diff --git a/docs/LOGBOOK.md b/docs/LOGBOOK.md
index dcffc5209..1beea9071 100644
--- a/docs/LOGBOOK.md
+++ b/docs/LOGBOOK.md
@@ -1,3 +1,12 @@
+## 2026-06-30 — 01:26 P0-006 Delivery Workbench mainline readback shortcut
+
+**照優先順序完成的實作**：
+- P0-006 仍是 active P0；P0-005 credential escrow 與 P0-003 Gitea private inventory 維持 production closed，不重開。
+- Production Delivery Workbench 已在 `summary` / lane 內呈現 P0-006 truth，但頂層 `safe_next_step`、`readback`、`rollups`、`active_blockers` 缺席會讓泛用 MCP / RAG / KM / Playbook reader 讀成空值。
+- 本輪將目前 P0 的 workplan、status、safe next step、active blockers、readiness、closed P0 list 與 hard boundary flags 提升為 Delivery Workbench 頂層相容欄位；既有 `summary` / `lanes` contract 不變。
+
+**邊界**：不使用 GitHub，不讀 secret / raw session / SQLite，不觸發 workflow，不重啟主機，不 restart service，不寫 DB / K8s / Docker / firewall。
+
 ## 2026-06-30 — 01:02 P0-006 drill preflight machine-readback shape
 
 **照優先順序完成的實作**：