mcp debug for Gemini CLI

io.github.standardbeagle/mcp-debug

Debug and develop MCP servers with hot-swapping, session recording, and playback testing

client:Gemini CLI transport:stdio runtime:pypi

Install mcp debug in Gemini CLI

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

{
  "mcpServers": {
    "mcp-debug": {
      "command": "uvx",
      "args": [
        "mcp-debug"
      ]
    }
  }
}

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