langgraph
Installation
SKILL.md
LangGraph
Official docs
| Topic | URL |
|---|---|
| LangGraph | https://langchain-ai.github.io/langgraph/ |
| Concepts | https://langchain-ai.github.io/langgraph/concepts/ |
| LangChain docs | https://python.langchain.com/docs/ |
Agent rules
- Graph first — model flows as nodes + edges with explicit state schema, not ad-hoc while loops.
- Checkpoints — use persistence for long runs; document thread_id / checkpoint backend.
- Human gates — interrupt before irreversible tools (payments, deletes, prod deploy).
- Model routing — cheap local/cloud model for explore nodes; S-tier cloud for final synthesis (see MODEL-ROUTER).
- Context7 — LangGraph API changes frequently; verify imports against current docs.