_matches_tool_filter() — langchain Function Reference

Architecture documentation for the _matches_tool_filter() function in tool_call_limit.py from the langchain codebase.

Function python LangChainCore MessageInterface called by 1

Entity Profile

LangChainCore→ MessageInterface→ _matches_tool_filter() — langchain Function Reference

Dependency Diagram

graph TD
  69072976_06ba_948b_d3cc_f7ede1e73d0f["_matches_tool_filter()"]
  68f7858b_b207_3223_e360_e5e5b35adf21["ToolCallLimitMiddleware"]
  69072976_06ba_948b_d3cc_f7ede1e73d0f -->|defined in| 68f7858b_b207_3223_e360_e5e5b35adf21
  6385d4be_67e3_d055_9df4_4d5383df6d8d["_separate_tool_calls()"]
  6385d4be_67e3_d055_9df4_4d5383df6d8d -->|calls| 69072976_06ba_948b_d3cc_f7ede1e73d0f
  style 69072976_06ba_948b_d3cc_f7ede1e73d0f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/langchain/agents/middleware/tool_call_limit.py lines 281–290

    def _matches_tool_filter(self, tool_call: ToolCall) -> bool:
        """Check if a tool call matches this middleware's tool filter.

        Args:
            tool_call: The tool call to check.

        Returns:
            True if this middleware should track this tool call.
        """
        return self.tool_name is None or tool_call["name"] == self.tool_name