Preflight for Gemini CLI

com.allthepossibles/preflight

Scans an MCP server for security gaps before your agent connects. Free tier, no signup.

client:Gemini CLI transport:streamable-http tools:4

Install Preflight in Gemini CLI

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

{
  "mcpServers": {
    "preflight": {
      "httpUrl": "https://preflight.allthepossibles.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