on_tool_error() — langchain Function Reference

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

Function python Observability CallbackManager calls 2 called by 1

Entity Profile

Observability→ CallbackManager→ on_tool_error() — langchain Function Reference

Dependency Diagram

graph TD
  f7fd0a02_66f3_0957_eff7_137f2d4e607d["on_tool_error()"]
  4bbdce53_aee3_a4dd_64c9_5813ff30b559["AsyncCallbackManagerForToolRun"]
  f7fd0a02_66f3_0957_eff7_137f2d4e607d -->|defined in| 4bbdce53_aee3_a4dd_64c9_5813ff30b559
  02639266_0981_41cb_ea80_7d68e6d0a8a5["on_tool_error()"]
  02639266_0981_41cb_ea80_7d68e6d0a8a5 -->|calls| f7fd0a02_66f3_0957_eff7_137f2d4e607d
  02639266_0981_41cb_ea80_7d68e6d0a8a5["on_tool_error()"]
  f7fd0a02_66f3_0957_eff7_137f2d4e607d -->|calls| 02639266_0981_41cb_ea80_7d68e6d0a8a5
  3a243d21_72d1_dca9_f7be_acbb482b9f86["ahandle_event()"]
  f7fd0a02_66f3_0957_eff7_137f2d4e607d -->|calls| 3a243d21_72d1_dca9_f7be_acbb482b9f86
  style f7fd0a02_66f3_0957_eff7_137f2d4e607d fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/manager.py lines 1149–1172

    async def on_tool_error(
        self,
        error: BaseException,
        **kwargs: Any,
    ) -> None:
        """Run when tool errors.

        Args:
            error: The error.
            **kwargs: Additional keyword arguments.

        """
        if not self.handlers:
            return
        await ahandle_event(
            self.handlers,
            "on_tool_error",
            "ignore_agent",
            error,
            run_id=self.run_id,
            parent_run_id=self.parent_run_id,
            tags=self.tags,
            **kwargs,
        )