Files

SKILL.mdagentsreferences

Install

Install the containing plugin

/plugin install shared-skills@llm-skills

Invoke this skill after installation

/shared-skills:codex-docs

Download codex-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-docs description: "Use this skill to look up official OpenAI Codex documentation at developers.openai.com/codex. Trigger when the user asks about Codex features, Codex concepts, AGENTS.md, Codex MCP, Codex SDK, Codex GitHub Action, Codex automation, or any OpenAI Codex reference. For CLI-specific help, use codex-cli-docs."

OpenAI Coding Agent Docs

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

Intent Router

Topic	Reference file	Load when...
Overview, quickstart, plans	`references/overview.md`	user needs intro, what the agent is, pricing, getting started
Concepts: prompting, sandboxing, agents	`references/concepts.md`	user asks about how the agent works conceptually
Configuration: AGENTS.md, MCP, skills	`references/configuration.md`	user asks about configuring the agent's behavior
Interfaces: app, IDE, CLI, web, integrations	`references/interfaces.md`	user asks about which surface to use or how integrations work
Automation: SDK, non-interactive, GitHub Action	`references/automation.md`	user asks about running the agent in CI/CD or programmatically

Key URLs at a Glance

Root                https://developers.openai.com/codex
Quickstart          https://developers.openai.com/codex/quickstart
Pricing / Plans     https://developers.openai.com/codex/pricing
Concepts            https://developers.openai.com/codex/concepts
AGENTS.md           https://developers.openai.com/codex/config/agents-md
Configuration       https://developers.openai.com/codex/config
MCP                 https://developers.openai.com/codex/config/mcp
Skills              https://developers.openai.com/codex/config/skills
CLI docs            https://developers.openai.com/codex/cli
IDE Extension       https://developers.openai.com/codex/ide
App                 https://developers.openai.com/codex/app
Web (cloud)         https://developers.openai.com/codex/cloud
GitHub integration  https://developers.openai.com/codex/integrations/github
Slack integration   https://developers.openai.com/codex/integrations/slack
GitHub Action       https://developers.openai.com/codex/automation/github-action
Automation / SDK    https://developers.openai.com/codex/automation
Security            https://developers.openai.com/codex/security

What is the OpenAI Coding Agent?

The OpenAI coding agent is available in ChatGPT and via API. It can read, write, test, and debug code autonomously across a codebase. Available as a web app, IDE extension, terminal CLI, and GitHub integration.