LangGraph Graph API Skill

Expert assistance for the LangGraph Graph API: explicit, declarative agent graphs using StateGraph, typed state, nodes, and edges. Use this API when you need visible, inspectable control flow and want to define your agent as a directed graph.

When to choose Graph API over Functional API:

• You want an explicit graph topology you can visualize
• Your workflow has clear, named stages (nodes)
• You need conditional branching between well-defined steps
• You're building a new agent from scratch (not wrapping an existing one)

Full corpus: ../langgraph/references/llms-txt.md (5.4 MB) and ../../langchain-deepagents/references/llms-full.md (10 MB).

When to Use This Skill