diff --git a/src/daemon/spawner.py b/src/daemon/spawner.py
index c842845..ce2e636 100644
--- a/src/daemon/spawner.py
+++ b/src/daemon/spawner.py
@@ -616,7 +616,12 @@ curl -X POST http://{api_host}:{api_port}/api/projects/{project_id}/tasks/{task_
                 row = conn.execute(
                     "SELECT id, title, status FROM tasks WHERE id=?", (task_id,)
                 ).fetchone()
-                return dict(row) if row else None
+                if not row:
+                    return None
+                info = dict(row)
+                # 从 db_path 推断 project_id: data/<project_id>/blackboard.db
+                info["project_id"] = db_path.parent.name
+                return info
             finally:
                 conn.close()
         except Exception: