OpenAI Codex Orange Book Guide

Skill by ara.so — Codex Skills collection.

Expert knowledge from "OpenAI Codex: The Complete Guide" (橙皮书) by HuaShu — covering all five forms of Codex (CLI, Desktop App, Cloud, IDE Extension, Chrome Extension) plus mobile companion. This skill teaches practical workflows, commands, and patterns for shipping products with AI coding agents.

Overview

The Codex Orange Book is a comprehensive guide covering:

• Five Forms: CLI (Terminal), Desktop App, Cloud, IDE Extensions, Chrome Extension
• Mobile Companion: Remote control for Desktop App (shipped May 14, 2026)
• GPT-5.5: Default model with 82.6% SWE-bench Verified, 82.7% Terminal-Bench 2.0
• Three Pro Tiers: $20 Pro, $100 Pro (recommended for indie devs), $200 Pro
• Key Features: Auto-review, persistent /goal, Computer Use, Automations, Memory

Installation & Setup

CLI Installation (Primary Interface)