GWS Model Armor Sanitize Response skill: what it does and how to install it

What it does. Runs gws modelarmor +sanitize-response with a full Model Armor template resource name. It accepts response text with --text, a complete request body with --json, or model output piped from another command.

When to use it. For checking outbound model responses before they reach users. For inbound user content, use the corresponding prompt sanitisation command instead.