core[patch]: add on_tool_error to _AstreamEventsCallbackHandler #30709
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@vbarda - I'm also keen to use this to help handling tool errors. |
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@ben-gineer and @deershark we'll try to get this in soon sorry the delay. But you should also be favoring the .stream() or .astream() APIs and orchestrating using langgraph. |
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Thanks. The only reason I’m using it is to allow me to stream events within a Streamlit app using LangGraph MCP tools without introducing a FastAPI intermediate service. If you know of alternative solutions, I’d be happy to switch. |
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Fixes #30708