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.

Cursor Eleven chapters on Cursor - Agent, Tab, and the @-context system - built by migrating a VS Code setup and shipping reviewed changes the Cursor way.

OpenCode Ten chapters on OpenCode, the open-source TUI - bring your own model, live in the terminal, and wire up providers, skills, and subagents your way.