Domain Health for Gemini CLI

com.modernmustardseed/domain-health

Domain checks: SPF, DKIM, DMARC, BIMI, MTA-STS, SSL/TLS and HTTP security headers.

client:Gemini CLI transport:streamable-http tools:5

Install Domain Health in Gemini CLI

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

{
  "mcpServers": {
    "domain-health": {
      "httpUrl": "https://mcp.modernmustardseed.com/domain-health"
    }
  }
}

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