Orientation to the Codex skill path — what it is, how the four chapters fit together, and where to start

From zero to productive — master OpenAI's coding agent across CLI, app, IDE, and cloud

Skills, subagents, cloud tasks, and power-user patterns that maximize your Codex output

Govern Codex spend across CLI and Cloud — model routing, reasoning effort, ChatGPT tiers, per-task pricing, and caching that actually pays off

Design persistence for Codex across CLI, IDE, desktop, and Cloud — every layer that decides what survives between tasks