ToolManagerMixin Class — langchain Architecture
Architecture documentation for the ToolManagerMixin class in base.py from the langchain codebase.
Entity Profile
Dependency Diagram
graph TD ce853a9e_20ff_60f1_d46b_e3de29d95f93["ToolManagerMixin"] aa78d849_32e0_cbe3_8323_1a62fafa0824["base.py"] ce853a9e_20ff_60f1_d46b_e3de29d95f93 -->|defined in| aa78d849_32e0_cbe3_8323_1a62fafa0824 4f688869_0f74_66b4_5b9a_2f5d2bf43e4e["on_tool_end()"] ce853a9e_20ff_60f1_d46b_e3de29d95f93 -->|method| 4f688869_0f74_66b4_5b9a_2f5d2bf43e4e d173e3b9_fbae_2cf1_4f8e_b2c612e3fb45["on_tool_error()"] ce853a9e_20ff_60f1_d46b_e3de29d95f93 -->|method| d173e3b9_fbae_2cf1_4f8e_b2c612e3fb45
Relationship Graph
Source Code
libs/core/langchain_core/callbacks/base.py lines 200–235
class ToolManagerMixin:
"""Mixin for tool callbacks."""
def on_tool_end(
self,
output: Any,
*,
run_id: UUID,
parent_run_id: UUID | None = None,
**kwargs: Any,
) -> Any:
"""Run when the tool ends running.
Args:
output: The output of the tool.
run_id: The ID of the current run.
parent_run_id: The ID of the parent run.
**kwargs: Additional keyword arguments.
"""
def on_tool_error(
self,
error: BaseException,
*,
run_id: UUID,
parent_run_id: UUID | None = None,
**kwargs: Any,
) -> Any:
"""Run when tool errors.
Args:
error: The error that occurred.
run_id: The ID of the current run.
parent_run_id: The ID of the parent run.
**kwargs: Additional keyword arguments.
"""Defined In
Source
Frequently Asked Questions
What is the ToolManagerMixin class?
ToolManagerMixin is a class in the langchain codebase, defined in libs/core/langchain_core/callbacks/base.py.
Where is ToolManagerMixin defined?
ToolManagerMixin is defined in libs/core/langchain_core/callbacks/base.py at line 200.
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