mcpshield for Gemini CLI

io.github.mcpshield-dev/mcpshield

Security scanner for MCP servers - detects tool poisoning and injection

client:Gemini CLI transport:stdio runtime:npm

Install mcpshield in Gemini CLI

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

{
  "mcpServers": {
    "mcpshield": {
      "command": "npx",
      "args": [
        "-y",
        "mcpshield-cli"
      ]
    }
  }
}

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