prompt-protection for Gemini CLI

io.github.mughalhere/prompt-protection

Scan prompts, tool definitions and model output for injection, and guard agent tool calls.

client:Gemini CLI transport:stdio runtime:npm

Install prompt-protection in Gemini CLI

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

{
  "mcpServers": {
    "prompt-protection": {
      "command": "npx",
      "args": [
        "-y",
        "prompt-protection"
      ]
    }
  }
}

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