The Agent Loop: One Turn at a Time

The loop, slowed down to its unit of work: what happens inside one turn, a real three-turn transcript, the five stopping conditions that keep loops from running forever, and the anatomy of a tool call — including why its result becomes the next turn’s input.

Lessons

1. Anatomy of one turn
2. Three turns of a support agent
3. How loops end — and what happens when they don’t
4. Inside a tool call: request, arguments, result
5. Drill: should this loop continue?