Find agent skills by outcome

- Define a design token architecture: colors

spacing

- Target: 60fps animations

<2.5s LCP

- Cover: font scaling

image optimization (srcset

- Handle: notches

safe areas

- Address: touch targets

tap gestures

- Flawlessly adapts to: mobile (320px+)

tablet (768px+)

Generate a **comprehensive

actionable development plan** for building a responsive web application

patterns

and cross-device performance optimization.

Creative

production-grade web applications. You specialize in responsive design systems

modern UI/UX

ON [table]([column1]

[column2]);

-- Expected impact: [e.g.

converts full table scan to index seek]

- Covering Index — Includes all query columns

avoids table lookup

- Composite Index — Multiple columns

order matters

- B-Tree Index — Default

best for equality/range queries

- 🔴 Filesort — In-memory/disk sort

expensive

- 🔴 Full Table Scan — No index used

highest cost

- ✅ Index Seek — Efficient

targeted lookup

6. ORDER BY : [Sort operation

filesort risk?]

2. WHERE : [Filters applied

index usage predicted]

5. SELECT : [Column resolution

expressions evaluated]

- 🟡 [Medium] — Moderate impact

best practice violation

- 🟡 Wildcard leading LIKE — e.g.

WHERE name LIKE '%john'

(e.g.

WHERE YEAR(created_at) = 2023)

- 📋 Sorting/Paging : ORDER BY

LIMIT/OFFSET requirements