How to Debug Infinite Loops in LangGraph-Based AI Agents

A common failure mode in LangGraph support bots is an agent getting trapped in an infinite loop, cycling repeatedly through the same set of states. This occurs within LangGraph's StateGraph, a directed graph where nodes represent states and edges define transitions between them. Developers can diagnose such loops by adding checkpoint logging to track state transitions and visualize where cycles form. A key pitfall is the use of conditional edges whose logic always evaluates to true, which can unintentionally create self-loops. Carefully testing edge conditions before deployment is recommended to prevent this issue in production environments.