LangGraph Fundamentals: Modeling Agents as State Machines in Agentic AI
LangGraph Fundamentals: Modeling Agents as State Machines
Why graphs beat long prompts
Graphs enforce structure: you can see what state you’re in, what comes next, and what conditions trigger transitions.
Typical states
- Interpret goal
- Plan
- Call tool
- Summarize
- Verify
- Finalize
Guard conditions
Guards prevent bad transitions: “only finalize if constraints are satisfied.”

