Files

SKILL.mdagentsreferences

Install

Install the containing plugin

/plugin install shared-skills@llm-skills

Invoke this skill after installation

/shared-skills:codex-cli-docs

Download codex-cli-docs-skill.zip

This skill is bundled inside shared-skills. Install the plugin once, then Claude Code can use any of its included skills. Browse the full plugin repository at github.com/alisonaquinas/llm-shared-skills.

SKILL.md

name: codex-cli-docs description: "Use this skill to look up official OpenAI Codex CLI documentation at developers.openai.com/codex/cli. Trigger when the user asks about installing the Codex CLI, Codex CLI commands and flags, Codex CLI slash commands, Codex CLI features, running Codex in the terminal, or any Codex CLI-specific reference. For general Codex agent concepts, use codex-docs."

OpenAI Coding CLI Docs

Reference skill for navigating the official coding CLI documentation. Root URL and full page index are in the Key URLs section below.

Intent Router

Topic	Reference file	Load when...
Install, auth, first run	`references/installation.md`	user needs to install or authenticate the CLI
Features and capabilities	`references/features.md`	user asks what the CLI can do
Command-line flags and options	`references/cli-reference.md`	user asks about specific flags, options, or invocations
Slash commands	`references/slash-commands.md`	user asks about in-session slash commands

Key URLs at a Glance

CLI root           https://developers.openai.com/codex/cli
Features           https://developers.openai.com/codex/cli/features
CLI reference      https://developers.openai.com/codex/cli/reference
Slash commands     https://developers.openai.com/codex/cli/slash-commands
Authentication     https://developers.openai.com/codex/auth
IDE extension      https://developers.openai.com/codex/ide
GitHub README      https://github.com/openai/codex/blob/main/README.md
GitHub releases    https://github.com/openai/codex/releases

Quick Install

# npm (global)
npm install -g @openai/codex

# Homebrew (macOS/Linux)
brew install codex

Then authenticate:

codex auth login

or set OPENAI_API_KEY in your environment.