Courses

These are hands-on courses, not reference. Each one picks a single agent, hands you a real project, and walks you through a week of work with it — every lesson is a problem you’ll actually hit and the exact move that fixes it. The techniques are the same discipline taught spec-first in Foundations; the courses are where you build the muscle memory.

Pick the tool you work in. The spines are the same teach-by-doing arc, so once you’ve done one, the next is mostly learning where that tool puts things.

Claude Code Eleven chapters on Anthropic's CLI, built around one running project — from your first reviewed change to running it headless in CI.

Codex Ten chapters on OpenAI's Codex CLI, built around budgetcli — a self-hosted personal-finance API you turn into something you'd trust with your own money.

GitHub Copilot Twelve chapters on GitHub Copilot in VS Code — IDE-first, the way enterprise teams actually use it. Built around two inherited repos and one feature that makes you touch both.

More courses (including opencode) are on the way, built on the same spine.