can I use systemmassage after tool_call instead of tool_message?

[haolxx]

when LLM does a tool call, the AI message include an id for it.
can my tool returns a system message with the same tool call id, instead of tool message?
in case of tool failure, feel like a system message can better teach the model what to do?

Thanks!

[eyurtsev]

You cannot.

Please refer to this conceptual guide about chat history: https://python.langchain.com/docs/concepts/chat_history/

Virtually all chat providers follow the conventions described in that guide for the chat history.

Hope this helps!

[haolxx]

Thank you!