MCP Shield for Gemini CLI

io.github.sophiacave/mcp-shield

Security scanner for MCP servers. SSRF, path traversal, injection, auth, secrets. Grade A-F.

client:Gemini CLI transport:stdio runtime:npm

Install MCP Shield in Gemini CLI

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

{
  "mcpServers": {
    "mcp-shield": {
      "command": "npx",
      "args": [
        "-y",
        "@sophiacave/mcp-shield"
      ]
    }
  }
}

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