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Gemini CLI

letin: Power Query (M) for Gemini CLI

io.github.s-curvelabs/letin

Inspect, refactor, lint, run and version Power Query (M) in Excel workbooks and Power BI projects.

client:Gemini CLI transport:stdio runtime:pypi

Install letin: Power Query (M) in Gemini CLI

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

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "letin": {
      "command": "uvx",
      "args": [
        "letin"
      ],
      "env": {
        "LETIN_HOME": "<LETIN_HOME>"
      }
    }
  }
}

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

letin: Power Query (M) in other clients

letin: Power Query (M) MCP server