diff --git a/apps/api/src/services/telegram_gateway.py b/apps/api/src/services/telegram_gateway.py
index 286300c8..ae8673f1 100644
--- a/apps/api/src/services/telegram_gateway.py
+++ b/apps/api/src/services/telegram_gateway.py
@@ -479,9 +479,79 @@ def _format_km_stale_completion_lines(summary: dict[str, object] | None) -> list
     else:
         lines.append("此事件: <code>no_related_owner_review</code>")
         lines.append("下一步: <code>review_awooop_completion_queue</code>")
+    triage = _km_stale_completion_triage(summary)
+    if triage:
+        support = triage.get("supporting_agents")
+        support_text = (
+            " / ".join(str(item) for item in support[:3])
+            if isinstance(support, list)
+            else "--"
+        )
+        lines += [
+            (
+                "流程: "
+                f"<code>{html.escape(str(triage.get('flow_stage') or '--'))}</code>"
+                " / 匹配 "
+                f"<code>{html.escape(str(triage.get('matching_strategy') or '--'))}</code>"
+            ),
+            (
+                "主責: "
+                f"<code>{html.escape(str(triage.get('ai_lead_agent') or '--'))}</code>"
+                " / 協作 "
+                f"<code>{html.escape(support_text)}</code>"
+            ),
+            (
+                "自動化: "
+                f"<code>{html.escape(str(triage.get('automation_state') or '--'))}</code>"
+                " / safe-auto "
+                f"<code>{html.escape(_bool_code(triage.get('safe_to_auto_repair')))}</code>"
+            ),
+            (
+                "卡點: "
+                f"<code>{html.escape(str(triage.get('blocking_reason') or '--'))}</code>"
+            ),
+        ]
     return lines
 
 
+def _km_stale_completion_triage(
+    summary: dict[str, object],
+) -> dict[str, object] | None:
+    triage = summary.get("triage")
+    if isinstance(triage, dict):
+        return triage
+    work_item = summary.get("work_item")
+    if isinstance(work_item, dict) and isinstance(work_item.get("triage"), dict):
+        return work_item["triage"]
+    return None
+
+
+def _build_km_stale_callback_owner_review_triage(
+    *,
+    reason: str,
+) -> dict[str, object]:
+    return {
+        "schema_version": "km_stale_callback_owner_review_triage_v1",
+        "flow_stage": "callback_observed_owner_review_link_missing",
+        "ai_lead_agent": "Hermes",
+        "supporting_agents": ["OpenClaw", "ElephantAlpha"],
+        "automation_state": "manual_owner_review_required",
+        "safe_to_auto_repair": False,
+        "blocking_reason": reason,
+        "matching_strategy": "related_incident_id_exact_match",
+        "already_done": [
+            "callback_reply_persisted",
+            "completion_queue_checked",
+            "telegram_detail_history_rendered",
+        ],
+        "next_actions": [
+            "review_awooop_callback_work_item",
+            "queue_matching_km_stale_candidate",
+            "complete_owner_review_after_owner_approval",
+        ],
+    }
+
+
 async def _fetch_km_stale_completion_summary_for_incident(
     *,
     incident_id: str,
@@ -508,11 +578,33 @@ async def _fetch_km_stale_completion_summary_for_incident(
             for item in queue.items
             if item.related_incident_id == incident_id
         ]
+        status_value = "matched_owner_review" if items else "no_related_owner_review"
+        reason = None if items else "no_matching_completion_item"
+        triage = (
+            None
+            if items
+            else _build_km_stale_callback_owner_review_triage(reason=reason)
+        )
+        work_item = None
+        if triage:
+            work_item = {
+                "schema_version": "km_stale_callback_owner_review_work_item_v1",
+                "kind": "km_stale_callback_owner_review",
+                "status": "open",
+                "incident_id": incident_id,
+                "reason": reason,
+                "next_step": "review_or_queue_km_owner_review",
+                "triage": triage,
+                "writes_on_read": False,
+                "manual_review_required": True,
+                "batch_writes_allowed": False,
+            }
         return {
             "schema_version": "km_stale_owner_review_completion_telegram_summary_v1",
-            "status": "ok",
+            "status": status_value,
             "project_id": project_id or "awoooi",
             "incident_id": incident_id,
+            "missing_reason": reason,
             "total": queue.total,
             "returned": queue.returned,
             "pending_count": queue.pending_count,
@@ -524,6 +616,8 @@ async def _fetch_km_stale_completion_summary_for_incident(
             "batch_writes_allowed": queue.batch_writes_allowed,
             "manual_review_required": queue.manual_review_required,
             "items": items[:5],
+            "triage": triage,
+            "work_item": work_item,
         }
     except Exception as exc:
         logger.debug(
diff --git a/apps/api/tests/test_telegram_message_templates.py b/apps/api/tests/test_telegram_message_templates.py
index 53594cb0..72ec78ae 100644
--- a/apps/api/tests/test_telegram_message_templates.py
+++ b/apps/api/tests/test_telegram_message_templates.py
@@ -206,6 +206,46 @@ def test_km_stale_completion_lines_show_owner_review_queue_state() -> None:
     assert "preview_stale_km_review_completion" in joined
 
 
+def test_km_stale_completion_lines_show_callback_triage_state() -> None:
+    """詳情/歷史要顯示 callback owner-review 缺口的流程、主責與卡點。"""
+    lines = telegram_gateway_module._format_km_stale_completion_lines({
+        "schema_version": "km_stale_owner_review_completion_telegram_summary_v1",
+        "status": "no_related_owner_review",
+        "incident_id": "INC-20260524-16109D",
+        "ready_count": 10,
+        "blocked_count": 0,
+        "completed_count": 1,
+        "failed_count": 0,
+        "writes_on_read": False,
+        "batch_writes_allowed": False,
+        "items": [],
+        "work_item": {
+            "schema_version": "km_stale_callback_owner_review_work_item_v1",
+            "status": "open",
+            "triage": {
+                "schema_version": "km_stale_callback_owner_review_triage_v1",
+                "flow_stage": "callback_observed_owner_review_link_missing",
+                "ai_lead_agent": "Hermes",
+                "supporting_agents": ["OpenClaw", "ElephantAlpha"],
+                "automation_state": "manual_owner_review_required",
+                "safe_to_auto_repair": False,
+                "blocking_reason": "no_matching_completion_item",
+                "matching_strategy": "related_incident_id_exact_match",
+            },
+        },
+    })
+
+    joined = "\n".join(lines)
+    assert "no_related_owner_review" in joined
+    assert "callback_observed_owner_review_link_missing" in joined
+    assert "related_incident_id_exact_match" in joined
+    assert "Hermes" in joined
+    assert "OpenClaw / ElephantAlpha" in joined
+    assert "manual_owner_review_required" in joined
+    assert "safe-auto <code>no</code>" in joined
+    assert "no_matching_completion_item" in joined
+
+
 def test_awooop_runs_url_for_incident_uses_public_incident_filter() -> None:
     """Telegram URL button 必須導到公開 AwoooP Run list，並帶 incident filter。"""
     url = telegram_gateway_module._awooop_runs_url_for_incident("INC-20260514-F85F21")