Action guide

AI Agent Architecture Simplified

'Just add an agent' turned into spaghetti. Here is the ReAct loop you can actually fit in your head. Reason. Act. Observe. Then wire state and tools like a real system.

Get the full guide

Free newsletter unlocks the full guide and subscriber links. Same library working engineers use. No pedigree bingo.

Free. No spam. Unsubscribe anytime.

Why subscribe

Everyone ships a while-loop with a model in the middle. You need the real shape. Where state lives. Where tools plug in. Where the loop lies to users if you are careless.

For: Engineers wiring agentic workflows who would rather draw a diagram than read another hype thread.

  • A clean ReAct loop model you can explain in one whiteboard
  • A boundary between dumb workflows and agents that need judgment
  • A checklist for memory, tools, and stopping conditions
  • Diagram-led guide from single call to multi-step loops
  • Examples that escalate in complexity on purpose
  • A decision frame you reuse on the next ticket
  • Names control flow the way serious engineers name it
Notebook-style step from the guide - ReAct agent and the while not done loop with pseudo-code

What you’ll learn

How the moving parts of a tool-using LLM agent line up: the ReAct pattern (reason → act → observe), what your code actually runs (often a small while loop), and how to read “agent architecture” diagrams without getting lost in the jargon.

When you subscribe to the newsletter, you get access to the full online guide alongside course and issue updates.

Explore the other action guides

Each guide kills one sharp problem. You leave with steps you can type, not inspiration quotes.

Unlock the library

Free subscription. Full guide access. Future drops included. Same files I email to people who ship.

Free. No spam. Unsubscribe anytime.