mobile-atc
Diagnose mobile PDP and cart friction where the add-to-cart (ATC) control is hard to see or reach—simulate scroll paths and thumb zones, flag text-stacked "dead zones" and tap blind spots, and propose minimal UI refactors. Use this skill whenever mobile conversion is roughly **50% or more below desktop** (same funnel definition), the user mentions small-screen ATC visibility, sticky bars, hero that pushes the buy button below the fold, iOS Safari chrome, or "users scroll but don't add." Also tri
