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Frameworks & Tools
LangGraph
A framework for building AI agents as stateful graphs of nodes and edges.
Definition
LangGraph is an open-source framework from the LangChain team for writing AI agents as graphs of nodes and edges that share a persistent state. Unlike simple linear chains, it supports cycles, so an agent can retry, reflect, and branch, along with persistence and human-in-the-loop checkpoints. This structure suits reliable production agents and long-running, multi-agent workflows.