diff --git a/apps/api/src/services/telegram_gateway.py b/apps/api/src/services/telegram_gateway.py
index 56499565..23b0dd51 100644
--- a/apps/api/src/services/telegram_gateway.py
+++ b/apps/api/src/services/telegram_gateway.py
@@ -171,6 +171,30 @@ class AiOpsSignalSpec:
 
 
 _AI_OPS_SIGNAL_SPECS: tuple[AiOpsSignalSpec, ...] = (
+    AiOpsSignalSpec(
+        event_type="wazuh_dashboard_api_readback_degraded",
+        title="Wazuh Dashboard / API 讀回退化",
+        lane="siem_observability_readback_degraded",
+        source_tokens=(
+            "wazuh_dashboard_api_readback_degraded",
+            "check-stored-api",
+            "check-api",
+            "dashboard agent list",
+            "agent list disappeared",
+            "agents disappeared",
+            "wazuh api check",
+        ),
+        gate_tokens=("429", "500", "unreachable", "registry", "readback", "dashboard", "api"),
+        impact="Dashboard 顯示與 Wazuh API / manager registry 讀回不一致；這是觀測盲點，不可宣稱 agent 全部消失或已恢復",
+        next_step="建立 Wazuh dashboard/API mismatch candidate，要求 manager registry 只讀計數、stored API 狀態、rate-limit / TLS trust 與 owner 回覆",
+        recommendation_lines=(
+            "├ 比對 dashboard stored API、Wazuh API 只讀 metadata、manager registry counts 與 agent transport evidence",
+            "├ 在 registry 未驗收前維持 no-false-green：agent_total / active / disconnected / last_seen 皆不得補假值",
+            "└ 回寫 IwoooS Wazuh visibility gate、AwoooP timeline、KM / PlayBook / Verifier",
+        ),
+        forbidden_summary="不重啟 Wazuh、不重新註冊 agent、不改 stored API / secret / firewall、不宣稱 registry 已恢復；先補只讀 evidence。",
+        default_severity="P1",
+    ),
     AiOpsSignalSpec(
         event_type="wazuh_intrusion_signal",
         title="Wazuh 入侵訊號",
@@ -346,6 +370,8 @@ def _aiops_signal_target(text: str, spec: AiOpsSignalSpec) -> str:
         return target or spec.event_type
     if spec.event_type == "backup_restore_escrow_signal":
         return "backup_restore"
+    if spec.event_type == "wazuh_dashboard_api_readback_degraded":
+        return "wazuh_dashboard_api"
     if spec.event_type == "nginx_config_drift":
         return "public_gateway"
     if spec.event_type == "supply_chain_drift":
diff --git a/apps/api/tests/test_telegram_message_templates.py b/apps/api/tests/test_telegram_message_templates.py
index 2a529190..47e14794 100644
--- a/apps/api/tests/test_telegram_message_templates.py
+++ b/apps/api/tests/test_telegram_message_templates.py
@@ -164,6 +164,32 @@ syscheck integrity changed on /etc/nginx/sites-enabled/awoooi.conf
     assert "super-secret" not in result
 
 
+def test_wazuh_dashboard_api_degraded_alert_becomes_readback_gap_event_packet() -> None:
+    """Wazuh Dashboard/API mismatch 必須轉成讀回退化事件卡，不可誤報成已修復。"""
+    raw_alert = """
+wazuh_dashboard_api_readback_degraded dashboard agent list disappeared
+POST /api/check-stored-api status=429 POST /api/check-api status=500
+https://127.0.0.1:55000 is unreachable manager registry readback blocked
+full_log=/var/ossec/logs/alerts/alerts.json Authorization: Bearer abcdefghijklmnopqrstuvwxyz
+"""
+
+    result = format_aiops_signal_alert_card(raw_alert)
+
+    assert "P1 AIOps 訊號｜Wazuh Dashboard / API 讀回退化" in result
+    assert "ai_automation_alert_card_v1" in result
+    assert "wazuh_dashboard_api_readback_degraded" in result
+    assert "siem_observability_readback_degraded" in result
+    assert "candidate_only" in result
+    assert "runtime_write_gate=0" in result
+    assert "manager registry 只讀計數" in result
+    assert "no-false-green" in result
+    assert "不重啟 Wazuh" in result
+    assert "不重新註冊 agent" in result
+    assert "127.0.0.1:55000" not in result
+    assert "/var/ossec" not in result
+    assert "abcdefghijkl" not in result
+
+
 def test_nginx_drift_alert_becomes_public_gateway_event_packet() -> None:
     """Nginx drift 應進 Public Gateway gate，而不是直接要求 reload。"""
     raw_alert = """
diff --git a/docs/LOGBOOK.md b/docs/LOGBOOK.md
index 99603e5e..c48fe4a1 100644
--- a/docs/LOGBOOK.md
+++ b/docs/LOGBOOK.md
@@ -36,6 +36,33 @@
 - 整體治理完成度維持 `41.9%`；Status Cleanup 仍 `gates=5/5 blocked`、`owner_flags=0/6`、`apply_allowed=false`、`memory_write_authorized=false`。
 - 本輪沒有更新 `project_current_status` / memory，沒有 Wazuh live query / active response / runtime deploy，沒有 host、Nginx、Docker、K8s、firewall、workflow、repo refs、backup、restore 或 migration 操作。
 - 本輪只交付 read-only API / client / report model，未宣稱可視 UI 已恢復或正式展示完成。
+
+## 2026-06-25｜Wazuh Dashboard / API mismatch AI 事件卡 source-side guard
+
+**背景**：前一輪已建立 Wazuh agent visibility no-false-green guard，但 P0-D「Wazuh agent disappearance alert card」仍只停在待補項。這一輪把 Dashboard 顯示 agent 消失、但 agent transport / manager service 尚有只讀證據的狀態，從一般 Wazuh 入侵訊號拆成獨立 AI 事件類型，避免 operator 收到看不懂的 raw 429/500 或被誤導成 agent 全部消失。
+
+**完成**：
+- `TelegramGateway` 新增 `wazuh_dashboard_api_readback_degraded`，lane 為 `siem_observability_readback_degraded`。
+- 新事件卡固定 `candidate_only / runtime_write_gate=0`，下一步指向 manager registry 只讀計數、stored API 狀態、rate-limit / TLS trust 與 owner response。
+- 禁止事項固定：不重啟 Wazuh、不重新註冊 agent、不改 stored API / secret / firewall、不宣稱 registry 已恢復。
+- `telegram-alert-readability-guard.py` 已把測試合約調為 `11`、AIOps signal lanes 調為 `7`；`iwooos-config-control-guard.py` 與 snapshot 同步固定新計數。
+- `docs/awooop/TELEGRAM-INCIDENT-NOTIFICATION-MODEL.md` 與 `docs/security/TELEGRAM-ALERT-READABILITY-GUARD.md` 已補 Wazuh Dashboard/API mismatch 分類規則。
+
+**驗證**：
+- `DATABASE_URL=postgresql://postgres:postgres@localhost:5432/awoooi_test pytest apps/api/tests/test_telegram_message_templates.py -q`：`73 passed`。
+- `python3 scripts/security/telegram-alert-readability-guard.py --root .`：`tests=11 ai_lanes=7 host_lanes=6 runtime_gate=0`。
+- `python3 scripts/security/iwooos-config-control-guard.py --root .`：通過。
+- `python3 scripts/security/security-mirror-progress-guard.py --root .`：通過。
+- `python3 scripts/ops/doc-secrets-sanity-check.py ...`：通過。
+
+**完成度**：
+- Wazuh Dashboard / API mismatch formatter / test / guard：`100%` source-side。
+- P0-D Wazuh agent disappearance alert card：`70%` source-side、`0%` delivery receipt。
+- SOC / Wazuh no-false-green 納管：`45% -> 52%`。
+- Wazuh manager agent registry 驗收、IwoooS production live readback、Dashboard stored API 修復、active response、host write：仍維持 `0% / 0`。
+
+**邊界**：本輪沒有送 Telegram、沒有修改 Alertmanager receiver、沒有 Wazuh / 112 / Docker / Nginx / firewall / secret / agent enrollment 寫入，沒有 active scan，也沒有把工作視窗對話放進前端或文件。
+
 ## 2026-06-24｜23:15 110 cold-start monitor live-sync gate readback
 
 **背景**：23:04 已把 MOMO source absence classifier 納入 repo-side cold-start v1.42，但這不等於 110 上 `/home/wooo/scripts/full-stack-cold-start-check.sh` 已更新。為避免下次重啟時 operator 以 live 110 舊腳本輸出做錯判，本輪只做部署 parity 的 read-only 驗證與 SOP gate 補強。
diff --git a/docs/awooop/TELEGRAM-INCIDENT-NOTIFICATION-MODEL.md b/docs/awooop/TELEGRAM-INCIDENT-NOTIFICATION-MODEL.md
index 577c7969..7113eff5 100644
--- a/docs/awooop/TELEGRAM-INCIDENT-NOTIFICATION-MODEL.md
+++ b/docs/awooop/TELEGRAM-INCIDENT-NOTIFICATION-MODEL.md
@@ -73,6 +73,7 @@ Host / runner 資源告警的第一版落地：
 
 - `TelegramGateway.send_alert_notification()` 與 `send_text()` 現在也會把 Wazuh、Kali、Nginx drift、Backup / Restore / Escrow、Provider freshness、Supply-chain drift 類訊號轉成同一版 `ai_automation_alert_card_v1`。
 - 事件類型固定映射：
+  - `wazuh_dashboard_api_readback_degraded` → `siem_observability_readback_degraded`
   - `wazuh_intrusion_signal` → `security_intrusion_triage`
   - `kali_assessment_signal` → `security_assessment_review`
   - `nginx_config_drift` → `public_gateway_config_drift`
@@ -80,6 +81,7 @@ Host / runner 資源告警的第一版落地：
   - `provider_freshness_signal` → `source_provider_freshness_triage`
   - `supply_chain_drift` → `supply_chain_drift_review`
 - 所有上述卡片都必須顯示 `candidate_only / runtime_write_gate=0`，並把下一步導向 owner evidence、reviewer acceptance、rendered diff / freshness / restore / SIEM readback、KM / PlayBook / Verifier 沉澱。
+- Wazuh Dashboard 顯示 agent 消失但 agent transport 或 manager service 仍有只讀證據時，必須優先分類為 `wazuh_dashboard_api_readback_degraded`；在 manager registry counts 未驗收前，不得把它寫成「所有 agent 已消失」或「agent 已恢復」。
 - formatter 會在 Telegram 最後出口脫敏 URL、內網 IP、絕對路徑、Bearer token、token / password / secret / api key 類 assignment；Top evidence 最多保留三行摘要。
 - 這只把 raw signal 變成 AI 自動化候選，不代表允許 Wazuh 封鎖、Kali active scan、`nginx -t` / reload、backup / restore / remote delete、provider switch、package upgrade、workflow dispatch 或 production write。
 
diff --git a/docs/security/TELEGRAM-ALERT-READABILITY-GUARD.md b/docs/security/TELEGRAM-ALERT-READABILITY-GUARD.md
index 1c7b1348..3be3b34b 100644
--- a/docs/security/TELEGRAM-ALERT-READABILITY-GUARD.md
+++ b/docs/security/TELEGRAM-ALERT-READABILITY-GUARD.md
@@ -26,8 +26,8 @@
 |------|--------|
 | source formatter markers | `11` |
 | 最後出口合約 | `3` |
-| 測試合約 | `10` |
-| AIOps signal lanes | `6` |
+| 測試合約 | `11` |
+| AIOps signal lanes | `7` |
 | Host resource lanes | `6` |
 | raw output 阻擋 marker | `12` |
 | required output marker | `6` |
@@ -37,7 +37,8 @@
 - `TelegramGateway._send_request()` 必須套用 `normalize_telegram_send_message_payload()`。
 - `send_alert_notification()` 與 `send_text()` 必須先走 `normalize_alert_notification_payload()`。
 - Host CPU / load / root Node.js / Prisma / Next build 只能轉成 `主機資源壓力` AI 事件卡。
-- Wazuh、Kali、Nginx drift、backup / restore、provider freshness、supply-chain 類訊號只能轉成 AIOps 候選事件卡。
+- Wazuh Dashboard / API 讀回退化、Wazuh 入侵訊號、Kali、Nginx drift、backup / restore、provider freshness、supply-chain 類訊號只能轉成 AIOps 候選事件卡。
+- Wazuh Dashboard 顯示 agent 消失但 manager registry 尚未驗收時，必須轉成 `wazuh_dashboard_api_readback_degraded`，不得把它誤寫為 agent 全部消失或已恢復。
 - 外部版本檢查 URL、套件樹路徑、workspace 路徑、runner toolcache 路徑、raw Wazuh path、raw Nginx path、內網 IP、token-like 字串、raw Prisma JSON 不得出現在格式化後訊息。
 
 ## 3. 驗收邊界
diff --git a/docs/security/WAZUH-AGENT-DISAPPEARANCE-INCIDENT-READBACK-2026-06-24.md b/docs/security/WAZUH-AGENT-DISAPPEARANCE-INCIDENT-READBACK-2026-06-24.md
index 6f2440e2..501c5a55 100644
--- a/docs/security/WAZUH-AGENT-DISAPPEARANCE-INCIDENT-READBACK-2026-06-24.md
+++ b/docs/security/WAZUH-AGENT-DISAPPEARANCE-INCIDENT-READBACK-2026-06-24.md
@@ -73,7 +73,7 @@
 | P0-A | Wazuh manager agent registry 只讀驗收 | owner 提供脫敏 `agent_total / active / disconnected / last_seen` ref，或經 server-side secret metadata 啟用 IwoooS 只讀 API | `40%` |
 | P0-B | Dashboard stored API / rate-limit / TLS trust 修復 gate | 查明 `/api/check-stored-api` 429/500 根因；維修前有 owner、rollback、postcheck；維修後 Dashboard 與 API count 一致 | `35%` |
 | P0-C | IwoooS live metadata route 正式部署 | `/api/iwooos/wazuh` 不再 404，回傳 schema `iwooos_wazuh_readonly_status_v1`，不洩漏 agent identity / internal IP / secret | `55%` source-side、`0%` production |
-| P0-D | Wazuh agent disappearance alert card | 產出 `ai_automation_alert_card_v1`，包含 agent count delta、Dashboard API status、manager health、next gate、owner | `20%` |
+| P0-D | Wazuh agent disappearance alert card | 產出 `ai_automation_alert_card_v1`，包含 agent count delta、Dashboard API status、manager health、next gate、owner；本輪已新增 `wazuh_dashboard_api_readback_degraded` formatter / test / guard | `70%` source-side、`0%` delivery receipt |
 | P0-E | 112/Wazuh owner response | 回覆 owner role/team、decision、reason、affected scope、redacted evidence refs、rollback owner、followup owner | `0%` |
 | P1-A | 110/188 agent receipt heartbeat | 每台 host 定期只讀確認 service active、manager target、1514 established、last evidence ref | `45%` |
 | P1-B | Dashboard no-false-green | Dashboard 429/500 或 Wazuh API check failure 要進 IwoooS incident，不可顯示綠燈 | `15%` |
@@ -84,7 +84,7 @@
 1. 請 Wazuh/112 owner 補脫敏 agent registry evidence：`agent_total`、`active`、`disconnected`、`never_connected`、`last_seen` 時間窗，不提供密碼或 raw payload。
 2. 啟用 IwoooS `/api/iwooos/wazuh` 前，先完成 production route readback、server-side env owner、secret source metadata、readonly account scope 與 rollback owner。
 3. 若 owner 批准維修 Dashboard stored API，必須先做 read-only preflight：rate-limit 現況、stored API 指向、TLS trust、API user scope、Dashboard 與 manager 版本、回滾方式。
-4. 補 IwoooS AI 事件卡：當 Dashboard 顯示 agents 空白但 110/188 agent 仍 connected 時，分類為 `wazuh_dashboard_api_readback_degraded`，而不是 `all_agents_missing`。
+4. 補 IwoooS AI 事件卡正式 readback：source-side formatter 已能把 Dashboard/API mismatch 分類為 `wazuh_dashboard_api_readback_degraded`；下一步需接 delivery receipt、AwoooP timeline 與 IwoooS 前台 readback。
 
 ## 7. 完成度
 
@@ -92,5 +92,5 @@
 - 真正 agent registry 驗收：`0%`。
 - IwoooS live readback production：`0%`。
 - Dashboard stored API 修復：`0%`。
-- SOC / Wazuh no-false-green 納管：`45%`。
+- SOC / Wazuh no-false-green 納管：`52%`。
 - active response / host write / auto block：`0%`，保持關閉。
diff --git a/docs/security/telegram-alert-readability-guard.snapshot.json b/docs/security/telegram-alert-readability-guard.snapshot.json
index 2f97ffeb..b30c5502 100644
--- a/docs/security/telegram-alert-readability-guard.snapshot.json
+++ b/docs/security/telegram-alert-readability-guard.snapshot.json
@@ -1,5 +1,6 @@
 {
   "ai_signal_lanes": [
+    "wazuh_dashboard_api_readback_degraded",
     "wazuh_intrusion_signal",
     "kali_assessment_signal",
     "nginx_config_drift",
@@ -54,8 +55,8 @@
       "required_marker": "normalize_alert_notification_payload"
     }
   ],
-  "generated_at": "2026-06-19T02:01:35+08:00",
-  "git_commit": "7d032eab",
+  "generated_at": "2026-06-25T09:07:58+08:00",
+  "git_commit": "3a179e7f",
   "host_resource_lanes": [
     "orphan_browser_smoke_runaway_process",
     "ci_runner_load_saturation",
@@ -93,7 +94,7 @@
   "status": "telegram_alert_readability_guard_ready_no_runtime_action",
   "summary": {
     "action_button_count": 0,
-    "ai_signal_lane_count": 6,
+    "ai_signal_lane_count": 7,
     "blocked_raw_output_marker_count": 12,
     "bot_api_call_authorized_count": 0,
     "final_exit_contract_count": 3,
@@ -105,11 +106,12 @@
     "secret_value_collection_allowed_count": 0,
     "source_formatter_marker_count": 11,
     "telegram_send_authorized_count": 0,
-    "test_contract_count": 10
+    "test_contract_count": 11
   },
   "test_contracts": [
     "test_ci_runner_load_alert_becomes_capacity_event_packet",
     "test_wazuh_alert_becomes_aiops_signal_event_packet",
+    "test_wazuh_dashboard_api_degraded_alert_becomes_readback_gap_event_packet",
     "test_nginx_drift_alert_becomes_public_gateway_event_packet",
     "test_aiops_signal_formatter_covers_non_host_alert_lanes",
     "test_send_alert_notification_normalizes_host_resource_raw_dump",
diff --git a/scripts/security/iwooos-config-control-guard.py b/scripts/security/iwooos-config-control-guard.py
index be4db431..0258d846 100644
--- a/scripts/security/iwooos-config-control-guard.py
+++ b/scripts/security/iwooos-config-control-guard.py
@@ -995,8 +995,8 @@ ARTIFACT_SPECS = [
         "list_counts": {
             "source_markers": 11,
             "final_exit_contracts": 3,
-            "test_contracts": 10,
-            "ai_signal_lanes": 6,
+            "test_contracts": 11,
+            "ai_signal_lanes": 7,
             "host_resource_lanes": 6,
             "blocked_raw_output_markers": 12,
             "required_output_markers": 6,
@@ -1004,8 +1004,8 @@ ARTIFACT_SPECS = [
         "summary_counts": {
             "source_formatter_marker_count": 11,
             "final_exit_contract_count": 3,
-            "test_contract_count": 10,
-            "ai_signal_lane_count": 6,
+            "test_contract_count": 11,
+            "ai_signal_lane_count": 7,
             "host_resource_lane_count": 6,
             "blocked_raw_output_marker_count": 12,
             "required_output_marker_count": 6,
diff --git a/scripts/security/telegram-alert-readability-guard.py b/scripts/security/telegram-alert-readability-guard.py
index bc63f553..96b5ddc4 100644
--- a/scripts/security/telegram-alert-readability-guard.py
+++ b/scripts/security/telegram-alert-readability-guard.py
@@ -56,6 +56,7 @@ FINAL_EXIT_CONTRACTS = [
 TEST_CONTRACTS = [
     "test_ci_runner_load_alert_becomes_capacity_event_packet",
     "test_wazuh_alert_becomes_aiops_signal_event_packet",
+    "test_wazuh_dashboard_api_degraded_alert_becomes_readback_gap_event_packet",
     "test_nginx_drift_alert_becomes_public_gateway_event_packet",
     "test_aiops_signal_formatter_covers_non_host_alert_lanes",
     "test_send_alert_notification_normalizes_host_resource_raw_dump",
@@ -67,6 +68,7 @@ TEST_CONTRACTS = [
 ]
 
 AI_SIGNAL_LANES = [
+    "wazuh_dashboard_api_readback_degraded",
     "wazuh_intrusion_signal",
     "kali_assessment_signal",
     "nginx_config_drift",