2 docs tagged with "LangGraph"

The four Lang* tools in one place — what each is, how they differ, and when to use which. LangChain builds it, LangGraph orchestrates it, LangSmith watches it, Langflow lets you draw it.

Building workflows as graphs — the State schema, nodes as functions, edges and conditional (router) edges, compiling and invoking a StateGraph, the add_messages reducer, and a tool-calling chatbot with ToolNode + tools_condition.