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ToolException Class — langchain Architecture

Architecture documentation for the ToolException class in base.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  c7e92770_8ad1_d71d_1006_9850d3cc3ac2["ToolException"]
  80cebff4_efbd_4311_85e9_de0dc81a7eee["base.py"]
  c7e92770_8ad1_d71d_1006_9850d3cc3ac2 -->|defined in| 80cebff4_efbd_4311_85e9_de0dc81a7eee

Relationship Graph

Source Code

libs/core/langchain_core/tools/base.py lines 390–397

class ToolException(Exception):  # noqa: N818
    """Exception thrown when a tool execution error occurs.

    This exception allows tools to signal errors without stopping the agent.

    The error is handled according to the tool's `handle_tool_error` setting, and the
    result is returned as an observation to the agent.
    """

Defined In

Source

Frequently Asked Questions

What is the ToolException class?
ToolException is a class in the langchain codebase, defined in libs/core/langchain_core/tools/base.py.
Where is ToolException defined?
ToolException is defined in libs/core/langchain_core/tools/base.py at line 390.

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