Plain-English guides to ChatGPT and Codex plugins

Short, practical answers to the stuff people actually get stuck on.

How to install a Codex plugin

Step-by-step: install a Codex or ChatGPT plugin from the built-in directory, from a GitHub repo marketplace, or from a local folder. Plain commands, no fluff.

How to validate plugin.json

What a valid .codex-plugin/plugin.json needs, the mistakes that break installs, and a free in-browser checker.

Convert MCP config from Claude to Codex

How to move MCP servers from claude_desktop_config.json or .mcp.json to Codex's ~/.codex/config.toml, with examples and a free converter.

How to write an AGENTS.md

What goes in AGENTS.md, where Codex looks for it, and a free generator that builds one from a few answers.

How to tell if a plugin is worth installing (and safe)

A two-minute checklist for community plugins: maintenance, what it runs, hooks, MCP servers, permissions and license.

Where to find ChatGPT and Codex plugins

Every place to find ChatGPT and Codex plugins: the built-in directory, GitHub awesome lists, and independent directories, and when to use each.

The PickAPlugin roundup

A weekly-ish email with new and notable ChatGPT & Codex plugins. No spam. Unsubscribe anytime with one click.