When I created the skills for using Codex CLI, I did my best to follow the standards for building a plug-in and distributing it as a Claude Code marketplace.
I originally planned to build a set of skills around a base conversation skill that codified the nuances of the Codex MCP. That’s why I called it the codex-skills marketplace. However, many issues with the Codex MCP were eventually addressed and I found myself wanting to build skills unrelated to Codex. As a result, I’ve created a new marketplace and plan to move the existing codex plugin into it.
As before, the repo is a full-fledged Claude Code marketplace. Codex is just starting on their own plug-in solution, and I’d like to support both from the same repository if possible. Every skill in this repo is meant to be compatible with both Claude Code and Agent Skills.
This repository uses the plug-ins within it to manage itself - a great way to test my changes. Unlike the first attempt, I’m also using skills meant for plug-in and skill development to help guide the work.
Plugins
| Name | Description |
|---|---|
| adr | Architecture Decision Records - consult and manage ADRs |
| codex | Codex-powered code review, plan review, and completion verification |
| planner | Enhanced planning with complexity scoring, sub-problem decomposition, and plan review |
| reviewer | Layered code review framework with extensible core reviews and parallel orchestration |
| reviewer-extras | Extra review types for the reviewer framework that depend on other plugins |