Codex CLI Specialist

Q: What is a Claude Code skill and how does the Codex CLI Specialist skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Codex CLI Specialist is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Dev Tools · Sub-category: cli-builders · Last updated: 2026-06-02

ai:agent type:cli

This skill should be used when the user asks to "set up Codex CLI", "convert skills for Codex", "write cross-platform AI skills", "configure agents/openai.yaml", "build skills index", "validate skill compatibility", "sync skills between Claude Code and Codex", or "optimize Codex CLI workflows". Use for OpenAI Codex CLI mastery, cross-platform skill authoring, skill conversion, and multi-agent compatibility patterns.

Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

Codex CLI Specialist includes a dedicated installation section; pricing or quota commentary; 36 code blocks for direct copy-paste. At roughly 3,627 words the SKILL.md is on the longer end of the catalog distribution.

Source: borghei.github.io/Claude-Skills
Original author: borghei
Indexed lastmod: 2026-06-02
Catalog position: Dev Tools · cli-builders
Indexed related skills: 10

How Codex CLI Specialist fits the catalog

Codex CLI Specialist sits in the Dev Tools category under the cli-builders sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

The agent converts Claude Code skills to Codex-compatible format, validates cross-platform compatibility, and builds skill registry manifests. It generates agents/openai.yaml configurations from SKILL.md frontmatter, runs 17 compatibility checks across both platforms, and produces skills-index.json for discovery systems.

What this skill does

Codex CLI Specialist is a community-contributed Claude Code skill in the cli-builders sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/codex-cli-specialist/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Codex CLI Specialist Claude Code skill is built for developers, power users, and teams automating repetitive workflows and improving developer experience. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 115,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/codex-cli-specialist
curl -L https://claudskills.com/skills/codex-cli-specialist/SKILL.md \
  -o ~/.claude/skills/codex-cli-specialist/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/codex-cli-specialist/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/codex-cli-specialist/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\codex-cli-specialist\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Codex CLI Specialist Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/codex-cli-specialist/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Codex CLI Specialist skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Codex CLI Specialist skill?

Use Codex CLI Specialist when your Claude Code task falls under the Dev Tools category — specifically in the cli builders area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Codex CLI Specialist" or describe the task and let Claude pick). Browse related skills at /category/tools/.

What is a Claude Code skill and how does the Codex CLI Specialist skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Codex CLI Specialist is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/borghei/Claude-Skills/blob/HEAD/engineering/codex-cli-specialist/SKILL.md
Author: borghei
Website: https://borghei.github.io/Claude-Skills

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

borghei. (2026). Codex CLI Specialist [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/codex-cli-specialist/

BibTeX

@misc{codex-cli-specialist-2026,
  author    = {borghei},
  title     = {Codex CLI Specialist [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/codex-cli-specialist/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/codex-cli-specialist.svg)](https://claudskills.com/skills/codex-cli-specialist/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-06-13 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 1 of 10 categories (filesystem), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
⚠ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/codex-cli-specialist/#security)

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Browse all Dev Tools skills → Top 100 skills

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