# plugin-creator

> Claude/Codex skill by [@openai](https://omgskills.com/library/openai/index.md) · 28k stars · Updated 2026-09-08

Create and scaffold plugin directories for Codex with a required \`.codex-plugin/plugin.json\`, optional plugin folders/files, and baseline placeholders you can edit before publishing or testing. Use when Codex needs to create a new local plugin, add optional plugin structure, or generate or update repo-root \`.agents/plugins/marketplace.json\` entries for plugin ordering and availability metadata.

## Install

```sh
git clone https://github.com/openai/skills /tmp/skills && ln -s /tmp/skills/skills/.system/plugin-creator ~/.claude/skills/plugin-creator
```

## From README

Plugin Creator Run the scaffold script: Open /.codex-plugin/plugin.json and replace \[TODO: ...\] placeholders. Generate or update the repo marketplace entry when the plugin should appear in Codex UI ordering: For a home-local plugin, treat as the root and use: Generate/adjust optional companion folders as needed: is the directory where the plugin folder will be created (for example /code/plugins). What this skill creates If the user has not made the plugin location explicit, ask whether they want a repo-local plugin or a home-local plugin before generating marketplace entries. Creates plugin root at / / /. Always creates / / /.codex-plugin/plugin.json. Fills the manifest with the full schema shape, placeholder values, and the complete interface section. Creates or updates /.agents/plugins/marketplace.json when --with-marketplace is set. If the marketplace file does not exist yet, seed top-level name plus interface.displayName placeholders before adding the first plugin entry.

## Links

- HTML page: https://omgskills.com/library/openai/skills/plugin-creator/
- GitHub: https://github.com/openai/skills
- Author: [@openai](https://omgskills.com/library/openai/index.md)

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