on_agent_finish() — langchain Function Reference

Architecture documentation for the on_agent_finish() function in manager.py from the langchain codebase.

Function python Observability CallbackManager calls 2 called by 1

Entity Profile

Observability→ CallbackManager→ on_agent_finish() — langchain Function Reference

Dependency Diagram

graph TD
  4e512a22_0568_2bb2_c4ef_7f5bb6e9d351["on_agent_finish()"]
  81cd9db4_6745_5fd9_98e7_4b450c8fee53["CallbackManagerForChainRun"]
  4e512a22_0568_2bb2_c4ef_7f5bb6e9d351 -->|defined in| 81cd9db4_6745_5fd9_98e7_4b450c8fee53
  d82de24b_08e8_66c5_94bb_4f74dabe9917["on_agent_finish()"]
  d82de24b_08e8_66c5_94bb_4f74dabe9917 -->|calls| 4e512a22_0568_2bb2_c4ef_7f5bb6e9d351
  d82de24b_08e8_66c5_94bb_4f74dabe9917["on_agent_finish()"]
  4e512a22_0568_2bb2_c4ef_7f5bb6e9d351 -->|calls| d82de24b_08e8_66c5_94bb_4f74dabe9917
  8964b4e9_440e_18a7_2a15_a54a0b2b733c["handle_event()"]
  4e512a22_0568_2bb2_c4ef_7f5bb6e9d351 -->|calls| 8964b4e9_440e_18a7_2a15_a54a0b2b733c
  style 4e512a22_0568_2bb2_c4ef_7f5bb6e9d351 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/manager.py lines 924–942

    def on_agent_finish(self, finish: AgentFinish, **kwargs: Any) -> None:
        """Run when agent finish is received.

        Args:
            finish: The agent finish.
            **kwargs: Additional keyword arguments.
        """
        if not self.handlers:
            return
        handle_event(
            self.handlers,
            "on_agent_finish",
            "ignore_agent",
            finish,
            run_id=self.run_id,
            parent_run_id=self.parent_run_id,
            tags=self.tags,
            **kwargs,
        )