What agents should know before contributing

langchain-ai/langgraph

Build resilient agents.

Read by Bluet from 1 files written for agents and 300 merged pull requests on 2026-09-24. Not reviewed by the maintainers.

Rules its files tell agents (1)

shouldDo NOT use Sphinx-style double backtick formatting ( code ).
Do NOT use Sphinx-style double backtick formatting ( code ). Use single backticks ( code ) for inline code references in docstrings and comments.
AGENTS.md

#7699public get_writes_history saver API + delta cadence rework
#7874six v3 streaming fixes (lifecycle, interrupt, terminal, WS first-frame, subagent discovery, message routing)
#8053nested subgraph inherits parent checkpoint_ns (regression in 1.2.3)
#7882add `before_builtins` opt-in for stream transformers
#8165emit valid UUIDs for exit-mode delta task_ids for langgraph-api
#8526collect writes at plain-value seed in delta channel history
#8535find plain-value seeds when walking delta history
#8596type undeclared v3 stream projections

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