langgraph
https://github.com/langchain-ai/langgraph
Python
Build resilient language agents as graphs.
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- Issues
- /join endpoint returns HTTP 200 with error payload instead of proper HTTP error status codes
- feat(checkpoint): serialize pydantic network types
- Pydantic v2 deprecations in langgraph/gregel/_messages.py:104 (__fields__, __fields_set__, instance access of computed fields)
- Interrupts missing in thread_state on self-hosted LangGraph (1.x)
- Self-host standalone servers fail to start
- `ToolNode` `ainvoke` freezes if `sse_read_timeout`
- ToolNode fails to execute tools with ToolRuntime parameter due to Pydantic validation error
- AttributeError in streaming when InMemorySaver is used
- Invalid state saved to checkpoint without validation, causing permanent corruption.
- `add_conditional_edges` type signature causes incompatibility with dict[str, str]
- Docs
- Python not yet supported