State Machines for LLM Agents: Stop Loops and Bad Tool Calls in Python

State machines give agents reliable control — implement bounded loops, ordered tool calls, retries, and safety gates using LangGraph and Python. Build a tiny guarded agent that prevents runaway loops, enforces tool order, limits retries, and produces an auditable log to reduce token waste and unsafe actions. Hands-on examples use LangGraph/StateGraph patterns and plain Python to keep workflows deterministic, debuggable, and low-overhead. Subscribe for concise AI engineering and LLM systems tutorials to apply these patterns in real integrations. #AIEngineering #LLM #LangGraph #StateMachines #Py…