diff --git a/src/chat/heart_flow/observation/hfcloop_observation.py b/src/chat/heart_flow/observation/hfcloop_observation.py
index 2e047f071..bd8f3f343 100644
--- a/src/chat/heart_flow/observation/hfcloop_observation.py
+++ b/src/chat/heart_flow/observation/hfcloop_observation.py
@@ -88,5 +88,6 @@ class HFCloopObservation:
         for action_name, action_info in using_actions.items():
             action_description = action_info["description"]
             cycle_info_block += f"\n你在聊天中可以使用{action_name}，这个动作的描述是{action_description}\n"
+        cycle_info_block += "注意，除了上述动作选项之外，你在群聊里不能做其他任何事情，这是你能力的边界\n"
 
         self.observe_info = cycle_info_block