Summer Engine for Gemini CLI

io.github.summerengine/summer

The game engine built for AI. Any agent makes a multiplayer game and publishes it.

client:Gemini CLI transport:streamable-http runtime:npm

Install Summer Engine in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

{
  "mcpServers": {
    "summer": {
      "httpUrl": "https://mcp.summerengine.com/mcp"
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs