diff --git a/src/daemon/dispatcher.py b/src/daemon/dispatcher.py
index b95d6e4..7a131df 100644
--- a/src/daemon/dispatcher.py
+++ b/src/daemon/dispatcher.py
@@ -226,10 +226,9 @@ class Dispatcher:
                 session_id = await self.spawner.spawn_full_agent(
                     agent_id=agent_id,
                     message=message,
-                    new_session=(level == DispatchLevel.ESCALATE),
                     task_id=task.id,
                     on_complete=on_complete,
-                    use_main_session=is_mail,
+                    use_main_session=True,  # #02: 统一投递到 main session
                     task_db_path=Path(project_config["db_path"]) if project_config and "db_path" in project_config else None,
                     on_checks_passed=on_checks_passed,
                 )