diff --git a/deploy/profile-scripts/memory_guardian.py b/deploy/profile-scripts/memory_guardian.py
index 21906736..ef5e1508 100644
--- a/deploy/profile-scripts/memory_guardian.py
+++ b/deploy/profile-scripts/memory_guardian.py
@@ -44,7 +44,7 @@ def cleanup_memory():
                            "这些应该放在MEMORY.md而非共享memory。"
                            "用memory(action='remove', old_text='唯一子串')逐条删除。"
                            "完成后回复'清理完成'。"}],
-            "max_tokens": 100,
+            "max_tokens": 512,  # 2026-08-14 修复：100→512（deepseek对过小max_tokens返回空）
         }).encode()
         req = urllib.request.Request(
             "http://localhost:8643/v1/chat/completions",