mobile-ux-audit
Installation
SKILL.md
Mobile UX Audit
Mobile is usually 65–80% of ecommerce traffic and ~50% of revenue. The gap between traffic share and revenue share is the audit's job: find the thumb-reach errors, the slow hero images, the checkout fields that kill the sale.
Quick Reference
| Decision | Strong | Acceptable | Weak |
|---|---|---|---|
| LCP (Largest Contentful Paint) | ≤2.0s on 4G | 2.0–2.5s | >2.5s |
| INP (Interaction to Next Paint) | ≤150ms | 150–300ms | >300ms |
| CLS (Cumulative Layout Shift) | ≤0.05 | ≤0.1 | >0.1 |
| Tap targets | ≥44×44pt with ≥8pt spacing | 40pt with tight spacing | <40pt, close together |
| Checkout fields | ≤8 fields, one-page | 10–12 fields, 2 pages | 15+ fields, 3+ pages |
| Pay methods | Apple Pay, Google Pay, card, 1 local | Card + PayPal | Card only |
| Guest checkout | Default, no account required | Account optional after checkout | Forced account creation |