diff --git a/apps/api/migrations/adr090d_ansible_operation_types.sql b/apps/api/migrations/adr090d_ansible_operation_types.sql
new file mode 100644
index 00000000..636c14c5
--- /dev/null
+++ b/apps/api/migrations/adr090d_ansible_operation_types.sql
@@ -0,0 +1,36 @@
+-- ADR-090-D: automation_operation_log.operation_type adds Ansible executor audit states
+-- Created: 2026-05-12 Taipei
+--
+-- Purpose:
+--   T3 Ansible declarative executor visibility. These operation types allow
+--   the AI automation truth chain to record that Ansible was matched,
+--   check-mode executed, applied, rolled back, or explicitly skipped.
+--
+-- Safety:
+--   This migration only expands the CHECK allowlist. It does not execute
+--   Ansible, change approval behavior, or create auto-remediation rows.
+
+ALTER TABLE automation_operation_log
+    DROP CONSTRAINT IF EXISTS automation_operation_log_type_valid;
+
+ALTER TABLE automation_operation_log
+    ADD CONSTRAINT automation_operation_log_type_valid CHECK (operation_type IN (
+        'monitor_configured','monitor_removed',
+        'alert_fired','alert_suppressed','alert_routed',
+        'rule_created','rule_updated','rule_matched','rule_rejected','rule_deprecated',
+        'playbook_generated','playbook_updated','playbook_executed',
+        'remediation_executed','remediation_verified','remediation_rolled_back',
+        'self_correction_attempted',
+        'km_created','km_updated','km_linked',
+        'asset_discovered','coverage_recalculated',
+        'capacity_recommendation','quota_enforced',
+        'notification_formatted',
+        'ansible_candidate_matched',
+        'ansible_check_mode_executed',
+        'ansible_apply_executed',
+        'ansible_rollback_executed',
+        'ansible_execution_skipped'
+    ));
+
+COMMENT ON CONSTRAINT automation_operation_log_type_valid ON automation_operation_log IS
+    'ADR-090-D: allow first-class Ansible executor audit states for AwoooP truth-chain visibility.';
diff --git a/apps/api/migrations/adr090d_ansible_operation_types_down.sql b/apps/api/migrations/adr090d_ansible_operation_types_down.sql
new file mode 100644
index 00000000..948bdb47
--- /dev/null
+++ b/apps/api/migrations/adr090d_ansible_operation_types_down.sql
@@ -0,0 +1,19 @@
+-- ADR-090-D rollback: remove Ansible executor audit states from operation_type allowlist.
+-- Only apply after confirming no automation_operation_log rows use ansible_* operation types.
+
+ALTER TABLE automation_operation_log
+    DROP CONSTRAINT IF EXISTS automation_operation_log_type_valid;
+
+ALTER TABLE automation_operation_log
+    ADD CONSTRAINT automation_operation_log_type_valid CHECK (operation_type IN (
+        'monitor_configured','monitor_removed',
+        'alert_fired','alert_suppressed','alert_routed',
+        'rule_created','rule_updated','rule_matched','rule_rejected','rule_deprecated',
+        'playbook_generated','playbook_updated','playbook_executed',
+        'remediation_executed','remediation_verified','remediation_rolled_back',
+        'self_correction_attempted',
+        'km_created','km_updated','km_linked',
+        'asset_discovered','coverage_recalculated',
+        'capacity_recommendation','quota_enforced',
+        'notification_formatted'
+    ));
diff --git a/apps/api/src/services/awooop_ansible_audit_service.py b/apps/api/src/services/awooop_ansible_audit_service.py
new file mode 100644
index 00000000..74d5b728
--- /dev/null
+++ b/apps/api/src/services/awooop_ansible_audit_service.py
@@ -0,0 +1,262 @@
+"""AwoooP Ansible audit helpers.
+
+This module is intentionally non-executing. It exposes the Ansible audit
+contract and repo-known playbook catalog so the truth chain can say whether
+Ansible was actually considered or executed, without pretending that catalog
+hints are runtime remediation.
+"""
+
+from __future__ import annotations
+
+from typing import Any
+
+
+ANSIBLE_OPERATION_TYPES = frozenset({
+    "ansible_candidate_matched",
+    "ansible_check_mode_executed",
+    "ansible_apply_executed",
+    "ansible_rollback_executed",
+    "ansible_execution_skipped",
+})
+
+_CATALOG: tuple[dict[str, Any], ...] = (
+    {
+        "catalog_id": "ansible:110-devops",
+        "playbook_path": "infra/ansible/playbooks/110-devops.yml",
+        "inventory_hosts": ["host_110"],
+        "domains": ["swap", "harbor", "sentry", "gitea", "langfuse", "bitan", "runner", "keepalived", "nginx"],
+        "keywords": [
+            "110",
+            "swap",
+            "harbor",
+            "sentry",
+            "gitea",
+            "langfuse",
+            "bitan",
+            "runner",
+            "github-runner",
+            "keepalived",
+        ],
+        "supports_check_mode": True,
+        "auto_apply_enabled": False,
+        "approval_required": True,
+        "risk_level": "medium",
+    },
+    {
+        "catalog_id": "ansible:188-ai-web",
+        "playbook_path": "infra/ansible/playbooks/188-ai-web.yml",
+        "inventory_hosts": ["host_188"],
+        "domains": ["docker", "momo_backup", "signoz", "minio", "litellm", "n8n", "open_webui", "nginx"],
+        "keywords": [
+            "188",
+            "momo",
+            "backup",
+            "postgresql",
+            "pg_backup",
+            "signoz",
+            "minio",
+            "litellm",
+            "n8n",
+            "open-webui",
+            "openwebui",
+            "docker-registry",
+        ],
+        "supports_check_mode": True,
+        "auto_apply_enabled": False,
+        "approval_required": True,
+        "risk_level": "medium",
+    },
+    {
+        "catalog_id": "ansible:nginx-sync",
+        "playbook_path": "infra/ansible/playbooks/nginx-sync.yml",
+        "inventory_hosts": ["host_110", "host_188"],
+        "domains": ["nginx", "proxy", "ollama_proxy", "tls"],
+        "keywords": ["nginx", "proxy", "ollama", "gcp", "tls", "cert", "502", "upstream"],
+        "supports_check_mode": True,
+        "auto_apply_enabled": False,
+        "approval_required": True,
+        "risk_level": "medium",
+    },
+    {
+        "catalog_id": "ansible:restore-password-auth",
+        "playbook_path": "infra/ansible/playbooks/restore-password-auth.yml",
+        "inventory_hosts": ["host_110", "host_120", "host_121", "host_188"],
+        "domains": ["ssh", "password_auth"],
+        "keywords": ["ssh", "passwordauthentication", "password auth", "login", "auth"],
+        "supports_check_mode": False,
+        "auto_apply_enabled": False,
+        "approval_required": True,
+        "risk_level": "high",
+    },
+)
+
+
+def _get(row: dict[str, Any], key: str) -> Any:
+    return row.get(key)
+
+
+def _tags(row: dict[str, Any]) -> list[str]:
+    raw = _get(row, "tags")
+    if isinstance(raw, list):
+        return [str(item).lower() for item in raw]
+    if isinstance(raw, str):
+        return [part.strip().lower() for part in raw.split(",") if part.strip()]
+    return []
+
+
+def _first_present(row: dict[str, Any], keys: tuple[str, ...]) -> Any:
+    for key in keys:
+        value = _get(row, key)
+        if value not in (None, ""):
+            return value
+    return None
+
+
+def _is_ansible_operation(row: dict[str, Any]) -> bool:
+    operation_type = str(_get(row, "operation_type") or "").lower()
+    if operation_type in ANSIBLE_OPERATION_TYPES:
+        return True
+    if "ansible" in _tags(row):
+        return True
+    executor = str(
+        _first_present(
+            row,
+            (
+                "input_executor",
+                "input_execution_backend",
+                "output_executor",
+                "output_execution_backend",
+            ),
+        )
+        or ""
+    ).lower()
+    if executor == "ansible":
+        return True
+    playbook_path = str(
+        _first_present(row, ("input_playbook_path", "output_playbook_path", "input_ansible_playbook_path", "output_ansible_playbook_path"))
+        or ""
+    ).lower()
+    return "infra/ansible/" in playbook_path or playbook_path.endswith(".yml") and "ansible" in playbook_path
+
+
+def _ansible_record(row: dict[str, Any]) -> dict[str, Any]:
+    return {
+        "op_id": _get(row, "op_id"),
+        "operation_type": _get(row, "operation_type"),
+        "status": _get(row, "status"),
+        "actor": _get(row, "actor"),
+        "playbook_id": _first_present(row, ("input_playbook_id", "output_playbook_id")),
+        "playbook_path": _first_present(
+            row,
+            ("input_playbook_path", "output_playbook_path", "input_ansible_playbook_path", "output_ansible_playbook_path"),
+        ),
+        "check_mode": _first_present(row, ("input_check_mode", "output_check_mode")),
+        "not_used_reason": _first_present(row, ("input_not_used_reason", "output_not_used_reason")),
+        "dry_run_result": _get(row, "dry_run_result"),
+        "error": _get(row, "error"),
+        "duration_ms": _get(row, "duration_ms"),
+        "tags": _get(row, "tags"),
+        "created_at": _get(row, "created_at"),
+    }
+
+
+def _flatten_text(value: Any, pieces: list[str], remaining: int = 80) -> int:
+    if remaining <= 0 or value is None:
+        return remaining
+    if isinstance(value, dict):
+        for key, item in value.items():
+            remaining = _flatten_text(key, pieces, remaining)
+            remaining = _flatten_text(item, pieces, remaining)
+            if remaining <= 0:
+                break
+        return remaining
+    if isinstance(value, list):
+        for item in value:
+            remaining = _flatten_text(item, pieces, remaining)
+            if remaining <= 0:
+                break
+        return remaining
+    pieces.append(str(value).lower())
+    return remaining - 1
+
+
+def _source_haystack(incident: dict[str, Any] | None, drift: dict[str, Any] | None) -> str:
+    pieces: list[str] = []
+    _flatten_text(incident, pieces)
+    _flatten_text(drift, pieces)
+    return " ".join(pieces)
+
+
+def _catalog_hints(incident: dict[str, Any] | None, drift: dict[str, Any] | None) -> dict[str, Any]:
+    haystack = _source_haystack(incident, drift)
+    candidates: list[dict[str, Any]] = []
+    unmatched: list[str] = []
+    for item in _CATALOG:
+        matched = [keyword for keyword in item["keywords"] if keyword in haystack]
+        public_item = {
+            key: value
+            for key, value in item.items()
+            if key
+            in {
+                "catalog_id",
+                "playbook_path",
+                "inventory_hosts",
+                "domains",
+                "supports_check_mode",
+                "auto_apply_enabled",
+                "approval_required",
+                "risk_level",
+            }
+        }
+        if matched:
+            candidates.append({
+                **public_item,
+                "match_score": len(matched),
+                "matched_keywords": matched,
+            })
+        else:
+            unmatched.append(item["catalog_id"])
+    candidates.sort(key=lambda row: (-int(row["match_score"]), str(row["catalog_id"])))
+    return {
+        "match_mode": "static_catalog_keyword_hint_v1",
+        "decision_effect": "none",
+        "available_count": len(_CATALOG),
+        "candidates": candidates,
+        "unmatched_catalog_ids": unmatched,
+    }
+
+
+def build_ansible_truth(
+    automation_ops: list[dict[str, Any]],
+    *,
+    incident: dict[str, Any] | None,
+    drift: dict[str, Any] | None,
+) -> dict[str, Any]:
+    """Build the truth-chain Ansible section from audited facts and catalog hints."""
+
+    records = [_ansible_record(row) for row in automation_ops if _is_ansible_operation(row)]
+    return {
+        "considered": bool(records),
+        "records": records,
+        "audit_contract": {
+            "schema_version": "ansible_executor_audit_v1",
+            "operation_types": sorted(ANSIBLE_OPERATION_TYPES),
+            "required_audit_fields": [
+                "operation_type",
+                "status",
+                "actor",
+                "input.executor",
+                "input.playbook_path",
+                "input.check_mode",
+                "output.not_used_reason",
+                "dry_run_result",
+            ],
+            "default_execution_mode": "catalog/dry-run audit only until approval execution is explicitly wired",
+        },
+        "candidate_catalog": _catalog_hints(incident, drift),
+        "not_used_reason": (
+            None
+            if records
+            else "no automation_operation_log row with Ansible operation type, tag, or executor backend for this source"
+        ),
+    }
diff --git a/apps/api/src/services/awooop_truth_chain_service.py b/apps/api/src/services/awooop_truth_chain_service.py
index 78867133..ed182eb2 100644
--- a/apps/api/src/services/awooop_truth_chain_service.py
+++ b/apps/api/src/services/awooop_truth_chain_service.py
@@ -17,6 +17,7 @@ import structlog
 from sqlalchemy import text
 
 from src.db.base import get_db_context
+from src.services.awooop_ansible_audit_service import build_ansible_truth
 
 logger = structlog.get_logger(__name__)
 
@@ -421,15 +422,30 @@ async def fetch_truth_chain(source_id: str, project_id: str = "awoooi") -> dict[
                     error,
                     duration_ms,
                     tags,
+                    input ->> 'executor' AS input_executor,
+                    input ->> 'execution_backend' AS input_execution_backend,
+                    input ->> 'playbook_id' AS input_playbook_id,
+                    input ->> 'playbook_path' AS input_playbook_path,
+                    input ->> 'ansible_playbook_path' AS input_ansible_playbook_path,
+                    input ->> 'check_mode' AS input_check_mode,
+                    input ->> 'not_used_reason' AS input_not_used_reason,
+                    output ->> 'executor' AS output_executor,
+                    output ->> 'execution_backend' AS output_execution_backend,
+                    output ->> 'playbook_id' AS output_playbook_id,
+                    output ->> 'playbook_path' AS output_playbook_path,
+                    output ->> 'ansible_playbook_path' AS output_ansible_playbook_path,
+                    output ->> 'check_mode' AS output_check_mode,
+                    output ->> 'not_used_reason' AS output_not_used_reason,
                     created_at
                 FROM automation_operation_log
-                WHERE coalesce(input::text, '') LIKE :needle
+                WHERE incident_id::text = :incident_id
+                   OR coalesce(input::text, '') LIKE :needle
                    OR coalesce(output::text, '') LIKE :needle
                    OR coalesce(array_to_string(tags, ','), '') LIKE :needle
                 ORDER BY created_at DESC
                 LIMIT :limit
                 """,
-                {"needle": f"%{incident_id}%", "limit": _MAX_ROWS},
+                {"incident_id": incident_id, "needle": f"%{incident_id}%", "limit": _MAX_ROWS},
             )
             km_entries = await _fetch_all(
                 db,
@@ -626,11 +642,7 @@ async def fetch_truth_chain(source_id: str, project_id: str = "awoooi") -> dict[
         },
         "execution": {
             "automation_operation_log": automation_ops,
-            "ansible": {
-                "considered": False,
-                "records": [],
-                "not_used_reason": "no first-class Ansible executor audit record in current truth chain",
-            },
+            "ansible": build_ansible_truth(automation_ops, incident=incident, drift=drift),
         },
         "learning": {
             "knowledge_entries": km_entries,
diff --git a/apps/api/src/services/incident_timeline_service.py b/apps/api/src/services/incident_timeline_service.py
index b14dbccc..975f496a 100644
--- a/apps/api/src/services/incident_timeline_service.py
+++ b/apps/api/src/services/incident_timeline_service.py
@@ -104,6 +104,11 @@ _AUTOMATION_STAGE_MAP = {
     "capacity_recommendation": "investigator",
     "quota_enforced": "safe",
     "notification_formatted": "safe",
+    "ansible_candidate_matched": "ai_router",
+    "ansible_check_mode_executed": "executor",
+    "ansible_apply_executed": "executor",
+    "ansible_rollback_executed": "executor",
+    "ansible_execution_skipped": "safe",
 }
 _AUTOMATION_STATUS_MAP = {
     "pending": "pending",
diff --git a/apps/api/tests/test_awooop_truth_chain_service.py b/apps/api/tests/test_awooop_truth_chain_service.py
index bf99813e..b872e489 100644
--- a/apps/api/tests/test_awooop_truth_chain_service.py
+++ b/apps/api/tests/test_awooop_truth_chain_service.py
@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+from src.services.awooop_ansible_audit_service import build_ansible_truth
 from src.services.awooop_truth_chain_service import _clean_row, _truth_status
 
 
@@ -61,3 +62,48 @@ def test_truth_status_marks_repeated_pending_drift_as_human_needed() -> None:
     assert status["needs_human"] is True
     assert "drift_report_pending_without_resolution" in status["blockers"]
     assert "drift_ai_confidence_zero" in status["blockers"]
+
+
+def test_ansible_truth_surfaces_audited_check_mode_record() -> None:
+    truth = build_ansible_truth(
+        [
+            {
+                "op_id": "op-ansible-1",
+                "operation_type": "ansible_check_mode_executed",
+                "status": "dry_run",
+                "actor": "platform_operator",
+                "input_playbook_path": "infra/ansible/playbooks/188-ai-web.yml",
+                "input_check_mode": "true",
+                "dry_run_result": {"changed": 1},
+                "tags": ["ansible", "check_mode"],
+                "created_at": "2026-05-12T22:00:00+08:00",
+            }
+        ],
+        incident={"incident_id": "INC-1", "alertname": "momo pg_backup failed on 188"},
+        drift=None,
+    )
+
+    assert truth["considered"] is True
+    assert truth["not_used_reason"] is None
+    assert truth["records"][0]["playbook_path"] == "infra/ansible/playbooks/188-ai-web.yml"
+    assert truth["records"][0]["check_mode"] == "true"
+    assert truth["records"][0]["dry_run_result"] == {"changed": 1}
+    assert "ansible_check_mode_executed" in truth["audit_contract"]["operation_types"]
+    assert truth["candidate_catalog"]["decision_effect"] == "none"
+    assert truth["candidate_catalog"]["candidates"][0]["catalog_id"] == "ansible:188-ai-web"
+    assert truth["candidate_catalog"]["candidates"][0]["auto_apply_enabled"] is False
+
+
+def test_ansible_truth_keeps_catalog_hint_separate_from_runtime_use() -> None:
+    truth = build_ansible_truth(
+        [],
+        incident={"incident_id": "INC-2", "alertname": "nginx 502 upstream timeout"},
+        drift=None,
+    )
+
+    assert truth["considered"] is False
+    assert truth["records"] == []
+    assert truth["not_used_reason"].startswith("no automation_operation_log row")
+    assert truth["candidate_catalog"]["candidates"][0]["catalog_id"] == "ansible:nginx-sync"
+    assert truth["candidate_catalog"]["candidates"][0]["approval_required"] is True
+    assert truth["candidate_catalog"]["decision_effect"] == "none"
diff --git a/docs/LOGBOOK.md b/docs/LOGBOOK.md
index 11cdb3c5..90400cf4 100644
--- a/docs/LOGBOOK.md
+++ b/docs/LOGBOOK.md
@@ -1,3 +1,39 @@
+## 2026-05-12 | T3 Ansible audit surface 第一段
+
+**背景**：Telegram / truth-chain live audit 顯示 Ansible 目前仍只是 repo/主機部署工具，沒有出現在 AI 自動化修復鏈路的 first-class audit record；Operator 無法知道「是否被考慮、是否 dry-run、為何沒用」。
+
+**修正**：
+- 新增 migration `adr090d_ansible_operation_types.sql`，擴充 `automation_operation_log.operation_type`：
+  - `ansible_candidate_matched`
+  - `ansible_check_mode_executed`
+  - `ansible_apply_executed`
+  - `ansible_rollback_executed`
+  - `ansible_execution_skipped`
+- 新增 rollback migration `adr090d_ansible_operation_types_down.sql`；`run-migration.yml` 會跳過 `_down.sql`。
+- 新增 `awooop_ansible_audit_service.py`：
+  - 讀取 automation ops 中的 Ansible operation type/tag/backend。
+  - 暴露 repo 既有 playbook catalog hint。
+  - 明確標示 `decision_effect=none`，避免把候選 playbook 當成已執行。
+- truth-chain `execution.ansible` 現在會顯示：
+  - `considered` 是否有真實 Ansible audit record。
+  - `records`、`audit_contract`、`candidate_catalog`、`not_used_reason`。
+- `incident_timeline_service` 補 Ansible operation type → stage mapping。
+
+**驗證**：
+- `py_compile`：Ansible audit service / truth-chain / incident timeline / truth-chain tests 通過。
+- `ruff --select F,E9`：All checks passed。
+- `pytest apps/api/tests/test_awooop_truth_chain_service.py apps/api/tests/test_platform_router_order.py apps/api/tests/test_awooop_operator_auth.py -q`：13 passed。
+- `ruby YAML.load_file(".gitea/workflows/run-migration.yml")`：ok。
+- `git diff --check`：ok。
+
+**整體進度**：
+- Wave 0：MOMO PostgreSQL backup → AwoooP 失敗通知接線完成並已推版。
+- T0：Truth-chain read-only API 完成、部署、production smoke 完成。
+- T1：Channel Event hardening 完成、部署、production smoke 完成。
+- T2：legacy MCP audit bridge / backfill / truth-chain visibility 完成、部署、production smoke 完成；first-class Gateway enforced path 仍待後續 wave。
+- T3：Ansible first-class audit contract / truth-chain 可見性完成；尚未把 approval execution path 寫入 Ansible dry-run/check-mode。
+- 下一步：推版後觀察 `run-migration`，確認新增 migration 與 audit seed 都通過。
+
 ## 2026-05-12 | run-migration audit seed 再修正
 
 **背景**：Gitea `run-migration` 在 `Seed asset_discovery_run (audit)` 再次失敗：
diff --git a/docs/superpowers/specs/2026-04-15-MASTER-ai-autonomous-flywheel-v2.md b/docs/superpowers/specs/2026-04-15-MASTER-ai-autonomous-flywheel-v2.md
index 9292dd8e..87c14867 100644
--- a/docs/superpowers/specs/2026-04-15-MASTER-ai-autonomous-flywheel-v2.md
+++ b/docs/superpowers/specs/2026-04-15-MASTER-ai-autonomous-flywheel-v2.md
@@ -1892,6 +1892,32 @@ Phase 6 完成後
 
 ---
 
+### 2026-05-12 晚 (台北) — T3 Ansible declarative executor audit surface 第一段
+
+**範圍**：
+- `automation_operation_log.operation_type` CHECK 追加 Ansible executor audit states：
+  `ansible_candidate_matched` / `ansible_check_mode_executed` /
+  `ansible_apply_executed` / `ansible_rollback_executed` /
+  `ansible_execution_skipped`。
+- 新增 `awooop_ansible_audit_service.py`，把 repo 既有 Ansible playbook catalog 以
+  read-only 方式暴露給 truth-chain。
+- truth-chain `execution.ansible` 改為顯示：
+  - 是否真的有 `automation_operation_log` Ansible audit record。
+  - audit contract / required fields。
+  - static catalog keyword hints，且 `decision_effect=none`，避免把候選 playbook 誤判成已自動修復。
+- `incident_timeline_service` 加入 Ansible operation type stage mapping。
+
+**已驗證**：
+- 本地 `py_compile` / `ruff F,E9` / `git diff --check` 通過。
+- `test_awooop_truth_chain_service.py`、router order、operator auth 共 13 passed。
+- `run-migration.yml` YAML parse 通過；新增 `_down.sql` 會被既有 workflow skip 規則排除。
+
+**仍未宣稱完成**：
+- 這不是 Ansible 自動修復執行器接線；目前只建立 first-class audit contract 與 truth-chain 可見性。
+- 下一段需把 decision / approval execution path 在「只 dry-run/check-mode」下寫入上述 operation types，再談 apply。
+
+---
+
 ### 2026-04-20 晚 (台北) — C1-C4 全流程串接 — Playbook 鏈路保護（commit de2d34d）
 
 **觸發**：統帥全景盤查 AI 自動化節點後，發現 Playbook 自動修復鏈路有 3 個結構性斷點。