UX and viewability optimization engine for publisher ad layouts. Use this skill whenever a user provides page structure data and wants recommendations to improve ad viewability, check Better Ads Standards compliance, or optimize slot placement. Triggers on phrases like "optimize ad layout", "improve viewability", "check Better Ads Standards", "ad slot placement", "ad density too high", "above-the-fold ad issue", "publisher layout review", "sticky ad recommendation", or any time a structured ad layout input needs a diagnostic and optimization pass. Returns a JSON assessment with viewability score, violations, and per-slot recommendations.
