Codex Usage

Q: What is a Claude Code skill and how does the Codex Usage 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 Usage is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: backend · Last updated: 2026-10-25

在 Codex 内嵌插件面板查看本机任务的上下文参考、输入输出 Token、输入缓存命中率、本轮提问与累计用量，并选择 WebSocket 优先、HTTPS 或默认连接。用户要求查看 Codex 用量或打开用量插件时使用。不用于业务 Token、登录令牌或套餐重置。

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

这是带内嵌 UI 的 MCP App；用量读取只读，连接方式保存会修改用户配置。使用此插件的 show_usage 工具，Codex 根据工具的 UI 元数据渲染面板。不要启动 HTTP 服务、打开浏览器或用独立网页替代。

What this skill does

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

Who uses this skill

The Codex Usage Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 211,000+ 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-usage
curl -L https://claudskills.com/skills/codex-usage/SKILL.md \
  -o ~/.claude/skills/codex-usage/SKILL.md

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

Skills live at ~/.claude/skills/codex-usage/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\codex-usage\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 Usage Claude Code skill?

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

What does the Codex Usage 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 Usage skill?

Use Codex Usage when your Claude Code task falls under the Engineering category — specifically in the backend 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 Usage" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Codex Usage 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 Usage is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

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

APA

jensen1993. (2026). Codex Usage [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/codex-usage/

BibTeX

@misc{codex-usage-2026,
  author    = {jensen1993},
  title     = {Codex Usage [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/codex-usage/}
}

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-usage.svg)](https://claudskills.com/skills/codex-usage/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-10-25 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ 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-usage/#security)

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