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harden

Improve interface resilience through better error handling, i18n support, text overflow handling, and edge case management. Makes interfaces robust and production-ready. Use when the user asks to harden, make production-ready, handle edge cases, add error states, or fix overflow and i18n issues.

templates/skills/impeccable/harden/SKILL.md

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Strengthen interfaces against edge cases, errors, internationalization issues, and real-world usage scenarios that break idealized designs.

## Assess Hardening Needs

Identify weaknesses and edge cases:

1. **Test with extreme inputs**:
   - Very long text (names, descriptions, titles)
   - Very short text (empty, single character)
   - Special characters (emoji, RTL text, accents)
   - Large numbers (millions, billions)
   - Many items (1000+ list items, 50+ options)
   - No data (empty states)