LangGraph Overview LangGraph is a framework for building stateful, multi-actor AI applications as graphs. Unlike simple chains, LangGraph supports cycles, branching, persistence, and human-in-the-loop — essential for real-world agents that need to plan, retry, delegate, and remember state across interactions. Instructions Step 1: Installation Step 2: Core Concepts LangGraph models applications as graphs with: - State : A shared data structure (typically TypedDict or Pydantic model) passed between nodes - Nodes : Functions that receive state and return updates - Edges : Connections between nod…