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ModelCallLimitState Class — langchain Architecture

Architecture documentation for the ModelCallLimitState class in model_call_limit.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  e21a5f90_5d2d_c896_325f_a1f244bbfbd7["ModelCallLimitState"]
  cd424b61_a87c_1279_2846_1393c1806d7b["model_call_limit.py"]
  e21a5f90_5d2d_c896_325f_a1f244bbfbd7 -->|defined in| cd424b61_a87c_1279_2846_1393c1806d7b

Relationship Graph

Source Code

libs/langchain_v1/langchain/agents/middleware/model_call_limit.py lines 24–34

class ModelCallLimitState(AgentState[ResponseT]):
    """State schema for `ModelCallLimitMiddleware`.

    Extends `AgentState` with model call tracking fields.

    Type Parameters:
        ResponseT: The type of the structured response. Defaults to `Any`.
    """

    thread_model_call_count: NotRequired[Annotated[int, PrivateStateAttr]]
    run_model_call_count: NotRequired[Annotated[int, UntrackedValue, PrivateStateAttr]]

Defined In

Source

Frequently Asked Questions

What is the ModelCallLimitState class?
ModelCallLimitState is a class in the langchain codebase, defined in libs/langchain_v1/langchain/agents/middleware/model_call_limit.py.
Where is ModelCallLimitState defined?
ModelCallLimitState is defined in libs/langchain_v1/langchain/agents/middleware/model_call_limit.py at line 24.

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