impeccable-hardenlisted
Install: claude install-skill JZKK720/cubecloud-skills-bundle-kit
Designs that only work with perfect data aren't production-ready. Harden the interface against the inputs, errors, languages, and network conditions that real users will throw at it.
## 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)
2. **Test error scenarios**:
- Network failures (offline, slow, timeout)
- API errors (400, 401, 403, 404, 500)
- Validation errors
- Permission errors
- Rate limiting
- Concurrent operations
3. **Test internationalization**:
- Long translations (German is often 30% longer than English)
- RTL languages (Arabic, Hebrew)
- Character sets (Chinese, Japanese, Korean, emoji)
- Date/time formats
- Number formats (1,000 vs 1.000)
- Currency symbols
**CRITICAL**: Designs that only work with perfect data aren't production-ready. Harden against reality.
## Hardening Dimensions
Systematically improve resilience:
### Text Overflow & Wrapping
**Long text handling**:
```css
/* Single line with ellipsis */
.truncate {
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
/* Multi-line with clamp */
.line-clamp {
display: -webkit-box;
-webkit-line-clamp: 3;
-webkit-box-orient: vertical;
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