25 Patterns in Agentic Engineering: the field guide to shipping real software by steering agents.

Everyone teaches idea-to-prototype. Almost no one teaches the hard part: making an agent's code correct, yours to own, and safe to ship.

This 64-page book distills 25 patterns from an eight-month build: 1,310 recorded sessions and 4,670 commits behind Stoa. Every pattern traces to real commits, sessions, or files.

In six parts, you'll learn to brief a goal the agent grades itself against, verify its work against evidence it can't fake, steer a live run, and route models like a team.

A free field guide PDF: the same patterns our course is built on.