[Python] How to retrieve the current conversation ID inside a tool function in LangGraph?

Is there any built-in way for a LangGraph tool function to access the current conversation (session/thread) ID at runtime? I need this ID for logging and external service correlation, but I can’t find it in the function signature or documentation. Any guidance would be appreciated—thanks!

from langchain_core.tools import tool
from pydantic import BaseModel

class UserAuthStatusInput(BaseModel):
xxx: str

@tool(args_schema=UserAuthStatusInput)
def xxx_func(xxx: str) -\> str:
\# business logic here...
\# TODO: how to retrieve the current conversation/thread ID at this point?
return "some result"


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Related discussion: https://github.com/langchain-ai/langgraph/discussions/6076

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