Execute Codex CLI for code analysis, refactoring, and automated code changes.

Custom licenceAuto-check passedAI & LLM Engineering

Install Codex

skills CLI
$ npx skills add Microck/ordinary-claude-skills --skill codex -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Microck/ordinary-claude-skills codex --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Microck/ordinary-claude-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills_all/codex .claude/skills/codex && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
codex
GitHub stars
401
Used in
2 other repos
Token cost
~2.8k tokens
SKILL.md length
849 words
Files
2
Skills in repo
97
Repo updated
First seen
Licence
Custom licence

At a glance

Execute Codex CLI for code analysis, refactoring, and automated code changes.

  • Works in 2 steps: Codex is unavailable (service down,… → Codex fails twice consecutively on the…
  • You need to delegate complex code tasks to Codex AI with file references (@syntax) and structured output
  • SKILL.md covers Overview, When to Use, Fallback Policy and Usage, plus 3 more sections
  • Calls bash

What it does

Codex is an agent skill from Microck/ordinary-claude-skills. Execute Codex CLI for code analysis, refactoring, and automated code changes. Use when you need to delegate complex code tasks to Codex AI with file references (@syntax) and structured output.

Its SKILL.md is about 2.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `metadata.json`).

It sits in AI & LLM Engineering, covering Structured output and tool calling and Refactoring. It works with Bash. The repository describes itself as: An unappealing collection of Claude Skills and resources.

When your agent uses it

  • You need to delegate complex code tasks to Codex AI with file references (@syntax) and structured output
  • Tasks that involve Structured output and tool calling
  • Tasks that involve Refactoring

Example prompts

  • “/codex”

Workflow steps

2 steps, taken from the first numbered list in SKILL.md.

  1. Codex is unavailable (service down, network issues)
  2. Codex fails twice consecutively on the same task

What it can do on your machine

Read from SKILL.md and the folder at commit 1056d29. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • bash

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Codex loads about 2.8k tokens when it runs. Until then it costs about 50 tokens; SKILL.md has 849 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~50
When it runs · the whole SKILL.md, loaded when a task matches
~2.8k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 849 words (~2,783 tokens).

“Execute Codex CLI commands and parse structured JSON responses. Supports file references via @ syntax, multiple models, and sandbox controls.”

— opening of SKILL.md by Microck, Custom licence
name
codex

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in skills_all/codex of Microck/ordinary-claude-skills.

  • SKILL.md
  • metadata.json

Open the folder on GitHubat commit 1056d29

Used in 2 other repositories

We found 6 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 2 other GitHub owners. This page covers the copy in Microck/ordinary-claude-skills, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Codex next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Codex compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Codex this skillMicrock/ordinary-claude-skills4012 repos~2.8kAutomated safety check: PassCustom licence
Claude Code Clawdbotwin4r/claude-code-clawdbot-skill123—~2.5kAutomated safety check: WarnNone
Coding AgentTermiX-official/cryptoclaw1008 repos~2.7kAutomated safety check: PassMIT
FIXME Resolvertailcallhq/forgecode7.6k—~1.1kAutomated safety check: PassApache-2.0
GolangJanDeDobbeleer/oh-my-posh24k—~4.3kAutomated safety check: PassMIT
Finalizezifeo/lade133—~1kAutomated safety check: PassMPL-2.0

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Works with

Questions about Codex

What does Codex do?

Execute Codex CLI for code analysis, refactoring, and automated code changes. Codex is an agent skill from Microck/ordinary-claude-skills. Execute Codex CLI for code analysis, refactoring, and automated code changes.

When should I use Codex?

Codex fits situations like: you need to delegate complex code tasks to Codex AI with file references (@syntax) and structured output; tasks that involve Structured output and tool calling; tasks that involve Refactoring.

How do I install Codex in Claude Code?

Run `npx skills add Microck/ordinary-claude-skills --skill codex -a claude-code`. Or copy the skill folder (skills_all/codex in Microck/ordinary-claude-skills) into .claude/skills/codex in your project. Claude Code loads it when a task matches its description.

How do I install Codex in Codex?

Run `npx skills add Microck/ordinary-claude-skills --skill codex -a codex`. Or copy the skill folder (skills_all/codex in Microck/ordinary-claude-skills) into .agents/skills/codex in your project. Codex loads it when a task matches its description.

Can I use Codex in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Microck/ordinary-claude-skills --skill codex -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/codex, .gemini/skills/codex, .github/skills/codex and .opencode/skills/codex in your project.

What does Codex need to run?

Going by SKILL.md and its folder, Codex needs the command-line tools its instructions call (bash).

Does Codex access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Codex safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Codex use?

Codex has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Codex use?

About 2.8k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Codex?

Skills that share tags, products or a category with Codex: Claude Code Clawdbot (win4r/claude-code-clawdbot-skill, 123 stars), Coding Agent (TermiX-official/cryptoclaw, 100 stars), FIXME Resolver (tailcallhq/forgecode, 7.6k stars) and Golang (JanDeDobbeleer/oh-my-posh, 24k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Codex?

Microck (a GitHub user) maintains it in Microck/ordinary-claude-skills, which has 401 GitHub stars. The repository holds 97 skills in this directory. The repository was last updated on September 6, 2026.

Source: Microck/ordinary-claude-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.