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AI EngineeringPython

Codex

by majiayu000

Codex is an AI Engineering skill for Claude Code, published by majiayu000 in spellbook.

265 stars26 forkson majiayu000/spellbookAdded 2026/09/02+1% in starsRepository updated 2026/08/31
View source on GitHubDownload repo ZIP
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Install in seconds
Install Codex
Copy Codex into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.
terminal
npx degit https://github.com/majiayu000/spellbook/tree/main/skills/codex ~/.claude/skills/codex

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/majiayu000/spellbook.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file
skills/codex/SKILL.md in majiayu000/spellbook
Installs to
~/.claude/skills/codex
Collection
One of 25 skills cataloged from this repository
Category
AI Engineering — 2631 skills

What Codex does

Codex runs OpenAI Codex CLI for code analysis, refactoring, and automated local edits. Use it when you want to inspect a codebase, make workspace changes, or resume an existing Codex session.

Codex is cataloged under AI Engineering on DirSkills. Codex comes from a repository tagged agent-skills, ai-agent-skills, ai-agents, ai-coding-assistant and automation.

Frequently asked about Codex

  • What else does majiayu000 publish alongside Codex?

    Codex is one of 25 skills that DirSkills catalogs from majiayu000/spellbook, the repository it ships in. Its siblings there include AGENTS.md Scaffold, API Design and Agents Md Optimize. Each one is a separate skill with its own page in this directory, installs the same way Codex does, and is maintained by majiayu000 in that same repository. The rest of the collection is listed on the majiayu000/spellbook page.

  • How does Codex compare to other AI Engineering skills?

    Codex ranks #2234 by stars among the 2631 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Codex against them. Open each page to compare what they document and how they install.

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Codex is one of 25 skills cataloged on DirSkills from majiayu000/spellbook.

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