I have one significant challenge to implement the ToolCallLimitMiddleware I set the tool call limit to 5. When I ask the LLM to create 6 images, the assistant returns: tool_calls = [call1, call2, call3, call4, call5, call6] What I want is to execute only the first 5 tool calls, ignore the 6th, …

ok, I think I’m done (tool_limit_edge is the key part): """ Custom LangGraph StateGraph that wires in LangChain's ModelCallLimitMiddleware around an OpenAI chat model, using python-dotenv for configuration. This demonstrates how to *reuse* the built-in middleware in a hand-written graph instead of…

Implement ToolLimitationNode in stateGraph

OSS Product Help LangGraph

pawel-twardziak December 12, 2025, 3:21pm 2

Thanks @Dev I’m on it (it’s a continuation of that post I am gonna use langchain builtin middleware in custom state graph - #7 by pawel-twardziak

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Implement ToolLimitationNode in stateGraph

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