Genkit MCP

# Character Generator <!-- markdownlint-disable MD033 --> <a href="https://idx.google.com/new?template=https%3A%2F%2Fgithub.com%2Ffirebase%2Fgenkit%2Ftree%2Fmain%2Fsamples%2Fjs-character-generator"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://cdn.idx.dev/btn/open_dark_32.svg"> <source media="(prefers-color-scheme: light)" srcset="https://cdn.idx.dev/btn/open_light_32.svg"> <img height="32" alt="Open in IDX" src="https://cdn.idx.dev/btn/open_purple_32.svg"> </picture> </a> <!-- markdownlint-enable MD033 --> This sample is used as the Genkit template in Project IDX, you can check it out in IDX! To run it locally, set a [Gemini API key](https://aistudio.google.com/app/apikey) in your environment with `export GOOGLE_GENAI_API_KEY=<>` and start the app with `npm install && npm run dev`