Syl Guardian for Gemini CLI

io.sylai/guardian

Causal guardrail: pass/caution/hold verdict on a causal claim before an agent acts.

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

Install Syl Guardian in Gemini CLI

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

{
  "mcpServers": {
    "guardian": {
      "httpUrl": "https://guardian.sylai.io/mcp"
    }
  }
}

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