diff --git a/server.py b/server.py
index 7a2c9a9..c99503a 100644
--- a/server.py
+++ b/server.py
@@ -1074,9 +1074,8 @@ def _run_kanban_agent(task_id: str):
         else:
             task["status"] = "done"
             task["summary"] = response[:300]
-        try:
-            path = kanban_task_path(task_id)
-            task = json.loads(path.read_text())
+            task["completed_at"] = get_timestamp()
+            append_audit({"action": "kanban_task_dispatch_completed", "task_id": task_id, "agent": agent})
         task["updated"] = get_timestamp()
         save_kanban_task(task)
     except Exception as e: