What problem does it solve? Reviewing a screen for usability problems is often ad hoc and inconsistent, so issues like missing loading states, tiny touch targets, or dark patterns slip through. This Skill provides a structured checklist-based audit so every screen is evaluated against the same criteria. ## Core Features & Use Cases - Heuristic Evaluation: Walks through all 10 of Nielsen's usability heuristics as concrete checkboxes covering feedback, consistency, error prevention, and recovery. - Mobile-Specific Checks: Verifies touch target sizes, safe-area insets, skeleton loading, and gesture affordances for mobile interfaces. - Dark Pattern Detection: Flags forced modals, exit-prevention dialogs, and manipulative CTAs. - Use Case: Point the audit at a checkout screen file and receive a graded report (A+ to F) with critical, major, and minor issues plus specific code-level recommendations. ## Quick Start Run the ss-audit skill on the checkout screen file and list all critical usability issues with fixes.