langgraph
https://github.com/langchain-ai/langgraph
Python
Build resilient language agents as graphs.
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- Issues
- sdk-py SSEDecoder drops required newlines between repeated `data:` fields
- v3 stream.subgraphs doesn't detect sub-agents invoked inside tool functions
- RFC: Cross-node write-intent registry for parallel graph execution
- No module named 'langgraph.stream' in langgraph-prebuilt 1.1.0
- Validate encryption context handlers at registration time
- perf(checkpoint): _msgpack_default walks an O(N) isinstance ladder on every value
- perf(langgraph): _get_channels calls get_type_hints on every StateGraph.compile() (cold-start tax)
- bug: lost exception chain in _get_node_name
- bug: except BaseException should be except Exception in cleanup paths
- Proposal: production HITL patterns example notebook
- Docs
- Python not yet supported