Build resilient agents.
langchain-ai/langgraph is a low-level framework for building agents and workflows that keep state while they run over time. Developers use it when agents need durable execution, memory, human oversight, debugging, or deployment support.
Latest release 1.2.20 — langgraph==1.2.20 · 5 Nov 2026
1 file for Codex and OpenCode: langgraph AGENTS.md — 922 tokens loaded in every session.
AGENTS.md A 922 tok These files are langchain-ai/langgraph's own configuration — they tell Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.