fix(prebuilt): Propagate tool_call_id to checkpoint_ns in ToolNode #6714#6722
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Aparnap2 wants to merge 1 commit intolangchain-ai:mainfrom
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fix(prebuilt): Propagate tool_call_id to checkpoint_ns in ToolNode #6714#6722Aparnap2 wants to merge 1 commit intolangchain-ai:mainfrom
Aparnap2 wants to merge 1 commit intolangchain-ai:mainfrom
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Updates the configuration passed to tools to include the tool_call_id in the checkpoint_ns, enabling correct correlation of subgraph events with parent tool calls during streaming. This fix addresses Issue langchain-ai#6714 where subgraph namespaces could not be correlated with parent tool calls. Changes: - Modified _func and _afunc methods to update checkpoint_ns before creating ToolRuntime instances - Added 4 test cases to verify checkpoint_ns propagation 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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This feature is blocking my production use case. |
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Description
Fixes #6714
Updates
ToolNodeto include thetool_call_idin thecheckpoint_nsconfiguration when creatingToolRuntime. This ensures that events emitted by subgraphs (tools) are properly namespaced, allowing streaming UIs to correlate subgraph events with the specific tool call that triggered them.Changes
ToolNode._funcandToolNode._afuncinlibs/prebuilt/langgraph/prebuilt/tool_node.pyto append|{tool_call_id}to thecheckpoint_ns.libs/prebuilt/tests/test_tool_node.pycovering:Verification
ruff check+ruff format).