langgraph-state-graph Build stateful agent workflows using LangGraph's StateGraph pattern. Design state schemas, create nodes, define edges with conditional routing, and enable persistence. Overview LangGraph is a library for building stateful, multi-actor applications with LLMs. The StateGraph is the core abstraction that enables: - Cyclical computation graphs (unlike DAGs) - State persistence and checkpointing - Human-in-the-loop interaction patterns - Conditional branching and routing - Multi-agent coordination Capabilities State Schema Design - Define typed state schemas with TypedDict or…