What problem does it solve? Interfaces built for ideal demo data break in production when users enter long names, lose connectivity, switch to RTL languages, or trigger API errors. This Skill systematically identifies and fixes those weaknesses so UI components survive real-world usage. ## Core Features & Use Cases - Text Overflow & i18n Resilience: Applies truncation, line-clamping, logical CSS properties, and Intl API formatting so layouts survive long translations, RTL scripts, and CJK characters. - Error & Edge Case Handling: Implements network failure recovery, per-status-code API error states, empty/loading states, and concurrent-operation guards like double-submit prevention. - Accessibility & Performance Resilience: Covers keyboard navigation, reduced-motion support, debouncing, memory-leak cleanup, and slow-connection strategies. - Use Case: Before shipping a React dashboard, run this Skill to add retry buttons on failed fetches, clamp overflowing card titles, support German text expansion, and verify behavior with 1000+ list items. ## Quick Start Harden the user profile page by fixing text overflow, adding error states for failed API calls, and verifying RTL and long-translation layouts.