diff --git a/src/daemon/dispatcher.py b/src/daemon/dispatcher.py
index 8d73093..3eec186 100644
--- a/src/daemon/dispatcher.py
+++ b/src/daemon/dispatcher.py
@@ -187,6 +187,29 @@ class Dispatcher:
                 if is_mail:
                     db_path = Path(project_config["db_path"]) if project_config and "db_path" in project_config else None
 
+                # 方案C：inform 类 Mail 不 spawn Agent，直接标 done
+                if is_mail:
+                    _perf = "request"
+                    try:
+                        _meta = json.loads(task.must_haves) if task.must_haves else {}
+                        _perf = _meta.get("performative", _meta.get("type", "request"))
+                    except Exception:
+                        pass
+                    if _perf == "inform":
+                        # 直接标 working → done，不 spawn
+                        _db_path = Path(project_config["db_path"]) if project_config and "db_path" in project_config else None
+                        if _db_path:
+                            self._mail_auto_working(task.id, _db_path)
+                            self._mail_auto_complete(task.id, agent_id, _db_path, task.must_haves or "")
+                        self._record_routing(task, decision, "dispatched", "inform_skip_spawn", _routing_db)
+                        return {
+                            "level": "mail",
+                            "agent_id": agent_id,
+                            "session_id": None,
+                            "status": "dispatched",
+                            "reason": "inform_skip_spawn",
+                        }
+
                 # on_checks_passed: 所有检查通过后才标 working，检查失败不标
                 on_checks_passed = None
                 _mail_marked_working = False