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codex-skill

v1.0.0

Give Claude Code a second opinion using OpenAI Codex - automatic plan review via hooks

Claude Code1 Skill

By cathrynlavery219 GitHub starsUpdated last month

Directory evidence

Runtimes
Claude Code
Parsed components
1 skill or MCP entry
Source updated
Sep 20, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install codex-skill for Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install codex-skill-2@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/cathrynlavery/codex-skill

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The repository root is the plugin root.

Plugin files

codex-skill/
├── .claude-plugin/plugin.json
└── skills/codex/SKILL.md

Included Skills1

codexskills/codex/SKILL.md

Use when Claude Code needs a second opinion, verification, or deeper research on technical matters. This includes researching how a library or API works, confirming implementation approaches, verifying technical assumptions, understanding complex code patterns, or getting alternative perspectives on architectural decisions. The agent leverages the Codex CLI to provide independent analysis and validation, and can implement changes when the user explicitly asks Codex to edit or fix code.

Plugin manifests1

.claude-plugin/plugin.json
{
  "name": "codex-skill",
  "version": "1.0.0",
  "description": "Give Claude Code a second opinion using OpenAI Codex - automatic plan review via hooks",
  "author": {
    "name": "cathrynlavery"
  }
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[codex-skill on Agent Plugins Marketplace](https://pluginsmp.com/plugins/codex-skill-2)