diff --git a/src/daemon/spawner.py b/src/daemon/spawner.py
index 3c077a5..648c4f3 100644
--- a/src/daemon/spawner.py
+++ b/src/daemon/spawner.py
@@ -115,7 +115,7 @@ DISCUSSION_PROMPT_TEMPLATE = """你被 spawn 来参与黑板讨论。这是一
 你可以随时:
 - 读黑板:GET http://{api_host}:{api_port}/api/projects/{project_id}/tasks/{task_id}?expand=all(含 comments、outputs)
 - 写 comment:POST http://{api_host}:{api_port}/api/projects/{project_id}/tasks/{task_id}/comments
-  body: {{"author": "{agent_id}", "body": "内容", "mentions": ["agent_id"]}}
+  body: {{"author": "{agent_id}", "body": "内容（@agent-id 自动路由）"}}
 - 创建 sub task:POST http://{api_host}:{api_port}/api/projects/{project_id}/tasks
   body: {{"title": "...", "description": "...", "task_type": "...", "parent_task": "{task_id}", "must_haves": "{{\"capability\": \"...\"}}"}}
 - 认领任务:POST http://{api_host}:{api_port}/api/projects/{project_id}/tasks/{{sub_task_id}}/claim