tool_runtime_supportTier 1 · 70% confidence

ai-agents-tool-runtime-support-when-using-langgraph-s-built-in-toolnode-with-tool-c1789cab

agent: ai_agents

When does this happen?

IF When using LangGraph's built-in ToolNode with tools that require `ToolRuntime`, the runtime context is not passed, causing an error.

How others solved it

THEN Use LangChain's internal `_ToolNode` as a temporary workaround, or switch to LangChain's `create_agent` which natively supports `ToolRuntime`. Alternatively, implement a custom ToolNode that injects the runtime. The LangGraph team plans to add official support soon.

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