langgraph
https://github.com/langchain-ai/langgraph
Python
Build resilient language agents as graphs.
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- Issues
- LangGraph Dev Server not reloading
- StateGraph silently drops node output keys not declared in TypedDict
- State channels are reference-transparent end-to-end (read AND write) — local_read()'s missing copy() is a symptom, not the root cause (LastValue et al. alias caller/node objects from the first .invoke())
- Event streaming v3 `stream.abort()` doesn't stop subgraphs when called from cancelled FastAPI handler
- Carry the originating tool_call_id on ActionRequest for HITL tool interrupts
- fix: Path Traversal in cli.py
- fix: Restrict sdk-py integration secrets to trusted refs
- fix: honor resource auth action filters
- fix: root messages inbox bounds
- langgraph dev: checkpoints never flushed mid-session; empty PersistentDicts dropped from the flush loop (data loss on non-graceful exit)
- Docs
- Python not yet supported