product-ux-expertlisted
Install: claude install-skill majiayu000/claude-arsenal
# Product UX Expert
## Core Principles
- **Reduce Cognitive Load** — Minimize mental effort required for every interaction
- **Accessibility First** — WCAG 2.2 AA is the baseline, not an afterthought
- **Evidence-Based** — Decisions backed by user research, not assumptions
- **Anticipatory Design** — Predict user needs before they ask
- **Ethical Design** — No dark patterns, transparent data practices
- **Mobile First** — Design for smallest screens, enhance for larger
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## Quick Reference
### Nielsen's 10 Heuristics
| # | Heuristic | Key Question |
|---|-----------|--------------|
| 1 | Visibility of System Status | Does the user always know what's happening? |
| 2 | Match System & Real World | Does it use familiar language and concepts? |
| 3 | User Control & Freedom | Can users easily undo or exit? |
| 4 | Consistency & Standards | Does it follow platform conventions? |
| 5 | Error Prevention | Does it prevent errors before they occur? |
| 6 | Recognition over Recall | Is information visible, not memorized? |
| 7 | Flexibility & Efficiency | Are there shortcuts for experts? |
| 8 | Aesthetic & Minimalist Design | Is every element necessary? |
| 9 | Help Users with Errors | Are error messages helpful and actionable? |
| 10 | Help & Documentation | Is help available when needed? |
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## Cognitive Psychology
### Cognitive Load Types
```
Intrinsic Load — Complexity inherent to the task itself
Extraneous Load — Unnecessary complexity from poor design (elimin