Individual skill

langgraph-fundamentals

INVOKE THIS SKILL when writing ANY LangGraph code. Covers StateGraph, state schemas, nodes, edges, Command, Send, invoke, streaming, and error handling.

config/skills/langgraph-fundamentals/SKILL.md

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Nov 10, 2026
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<overview>
LangGraph models agent workflows as **directed graphs**:

- **StateGraph**: Main class for building stateful graphs
- **Nodes**: Functions that perform work and update state
- **Edges**: Define execution order (static or conditional)
- **START/END**: Special nodes marking entry and exit points
- **State with Reducers**: Control how state updates are merged

Graphs must be `compile()`d before execution.
</overview>

<design-methodology>
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