mcp-apps Claude Code Plugin

This plugin adds skills to Claude Code for building MCP Apps that use the MCP Apps SDK. According to the README, it can be invoked to scaffold a new MCP App, add an interactive UI to an existing MCP tool, or build an interactive MCP View through natural-language requests. It also includes a migration skill for converting applications originally written against OpenAI's Apps SDK, including code that relies on window.openai, into the MCP format. The homepage documentation describes MCP itself as an open standard that lets AI applications connect to external data sources, tools, and workflows. The plugin does not connect to a specific external service on its own; it assists with development of MCP-compatible apps inside Claude Code.