The definitive bilingual (🇰🇷 KR / 🇺🇸 EN) guide to OpenAI Codex
CLI · macOS App · IDE Extension · Web Dashboard
Codex 101 is a comprehensive guide covering OpenAI's agentic coding platform Codex from start to finish.
Based on the official OpenAI documentation, the initial draft was assembled with AI assistance, then manually reviewed and verified before publication.
| Section | Topic |
|---|---|
| 01–03 | Ecosystem overview, product suite, supported models |
| 04–05 | System requirements & pricing, installation & auth |
| 06–09 | CLI, App, IDE Extension, Web usage |
| 10–14 | Approval modes, slash commands, AGENTS.md, config.toml, MCP |
| 15–16 | Session management, CI/CD automation |
| 17 | Prompt engineering tips (curated from @reach_vb) |
| 18–19 | Advanced techniques, Codex vs Cursor vs Claude Code |
| 20–21 | FAQ, references |
Currently supports Korean 🇰🇷 and English 🇺🇸.
Toggle languages in real-time via the 🌐 button on the top right of the page.
We welcome translation contributions! Add a new language block in
i18n.js.
The initial draft of this guide was created using AI based on the official OpenAI documentation and community resources, then manually reviewed and verified before publishing.
Despite our review, some typos, mistranslations, or inaccuracies may still remain.If you find any issues or have questions, please open an Issue or submit a PR!
Codex is evolving rapidly — always check the official docs for the latest information.
Open source contributions are welcome! 🎉
- 🐛 Bug fixes — Incorrect info, typos, mistranslations
- 🌐 Translations — Add new language support (add to
i18n.js) - 💡 Tips & workflows — Share useful Codex tips
- 📸 Screenshots — Updated UI screenshots
- 📝 Content — Expand or improve existing sections
# 1. Fork & Clone
git clone https://github.com/<your-username>/codex-101.git
cd codex-101
# 2. Open in browser to verify changes
open index.html
# 3. Submit a PR
git checkout -b fix/my-improvement
git commit -m "Fix: correct outdated information"
git push origin fix/my-improvementcodex-101/
├── index.html # Main page (21 sections)
├── style.css # Styles (dark/light theme)
├── app.js # Interactions (TOC, model toggle, theme, etc.)
├── i18n.js # Translations (KR/EN)
└── images/ # Screenshots
This project is open source and available under the MIT License.
Made with ❤️ by @swhan0329
Built with the help of AI — PRs welcome!