prompt guard mcp for Gemini CLI

io.github.robertoyanguas-ops/prompt-guard-mcp

Scans untrusted web pages, emails, or tool outputs for prompt injections and returns sanitized tex

client:Gemini CLI transport:streamable-http tools:2

Install prompt guard mcp in Gemini CLI

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

{
  "mcpServers": {
    "prompt-guard-mcp": {
      "httpUrl": "https://prompt-guard-72343955726.us-central1.run.app/mcp/prompt-guard"
    }
  }
}

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