diff --git a/docs/design/13-toolchain-and-dev-workflow.md b/docs/design/13-toolchain-and-dev-workflow.md
index dd402cc..2f4acc2 100644
--- a/docs/design/13-toolchain-and-dev-workflow.md
+++ b/docs/design/13-toolchain-and-dev-workflow.md
@@ -1185,19 +1185,26 @@ async def handle_gitea_webhook(event: dict, x_gitea_event: str = Header(...)):
 ```python
 # 在 daemon ticker 中
 async def check_stale_flows():
-    """扫描超时未回复的 Mail"""
+    """扫描超时未回复的 Mail，按个性化 deadline 判断"""
     # 1. 查所有 type=request 且无 in_reply_to 回复的 Mail
-    stale_mails = queries.find_stale_requests(deadline_hours=4)
+    #    每个 Mail 创建时在 metadata 中记录 deadline（基于 Mail 模板的时限）
+    pending_mails = queries.find_pending_requests()
     
-    for mail in stale_mails:
-        hours_overdue = (now() - mail.created_at).total_seconds() / 3600
+    for mail in pending_mails:
+        deadline_hours = mail.meta.get("deadline_hours", 8)  # 默认 8 小时
+        hours_elapsed = (now() - mail.created_at).total_seconds() / 3600
         
-        if hours_overdue < 8:
+        if hours_elapsed < deadline_hours:
+            continue  # 未超时，跳过
+        
+        hours_overdue = hours_elapsed - deadline_hours
+        
+        if hours_overdue < 4:
             # 轻度：重发 Mail 提醒
             await send_mail(to=mail.to, title=f"提醒: {mail.title}", 
                           text=f"此任务已超时 {hours_overdue:.0f} 小时，请尽快处理。")
         
-        elif hours_overdue < 24:
+        elif hours_overdue < 16:
             # 中度：spawn 庞统介入
             await spawn_agent("pangtong-fujunshi", 
                             f"流程卡住: Mail {mail.id} '{mail.title}' 超时 {hours_overdue:.0f} 小时未回复。请介入协调。")