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The TapKit plugin for Codex gives the agent iPhone control in the desktop app. It installs an MCP server connection and a skill file that teaches Codex how to use the tools effectively.
Codex doesn’t officially support community plugins yet — only personal plugins you install yourself. The TapKit plugin is open source and ready to install, you just need to add it manually.

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Setup

1. Clone the plugin: 
git clone https://github.com/Jootsing-Research/tapkit-plugins-codex.git
2. Install the plugin by following the Codex plugin installation docs. The Codex app and CLI share the same plugin system, so once installed it’s available in both. 3. Authenticate — once the plugin is loaded, the TapKit MCP server will prompt you to sign in via your browser. 4. Verify it works: 
Take a screenshot of my phone
If a phone is connected via the Mac app, you’ll see the screenshot.

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What’s in the plugin

The TapKit plugin bundles:
  • MCP server config — connects Codex to TapKit’s hosted MCP endpoint
  • Skills — teaches Codex how to use the coordinate system, screenshot loop, and gesture types