langgraph
https://github.com/langchain-ai/langgraph
Python
Build resilient language agents as graphs.
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- Issues
- Pylance reports invoke type as partially unknown for create_agent() result
- Tool suggestion: BuyWhere — real-time Singapore product catalog for LangGraph agents
- TypeError collecting serde allowlist for collections.abc generic containers
- feat: add graph-level task scheduling policy (this is a feature proposal, not a bug)
- bug: ToolNode._arun_one blocks event loop when using sync wrap_tool_call
- Regression in 1.1.7 (#7498): Second regenerate from latest checkpoint doesn't create new branch
- Agent with checkpointer=True: forking human message produces duplicate human messages in new branch
- bug: SyncPregelLoop.put_writes caches INTERRUPT/ERROR writes (async path already guarded)
- perf: cache source+AST analysis in get_function_nonlocals and _get_all_injected_args
- bug: store delete() and adelete() skip namespace validation
- Docs
- Python not yet supported