edge-performance-optimizer

# Edge Performance Optimizer SKILL

## Activation Patterns

This SKILL automatically activates when:
- New dependencies are added to package.json
- Large files or heavy imports are detected
- Sequential operations that could be parallelized
- Missing edge caching opportunities
- Bundle size increases significantly
- Storage operations without optimization patterns

## Expertise Provided

### Edge-Specific Performance Optimization
- **Cold Start Optimization**: Minimizes bundle size and heavy dependencies
- **Global Distribution**: Ensures edge caching for global performance
- **CPU Time Optimization**: Identifies CPU-intensive operations
- **Storage Performance**: Optimizes KV/R2/D1 access patterns
- **Parallel Operations**: Suggests parallelization opportunities
- **Bundle Analysis**: Monitors and optimizes bundle size

### Specific Checks Performed

#### ❌ Performance Anti-Patterns
```typescript
// These patterns trigger immediate alerts:
import axios from 'axios';              // Heavy dependency (13KB)
import moment from 'moment';             // Heavy dependency (68KB)
import _ from 'lodash';                 // Heavy dependency (71KB)

// Sequential operations that could be parallel
const user = await env.USERS.get(id);
const settings = await env.SETTINGS.get(id);
const prefs = await env.PREFS.get(id);
```

#### ✅ Performance Best Practices
```typescript
// These patterns are validated as correct:
// Native Web APIs instead of heavy libraries
const response = await fetch(url);      // Built-in fetch (0KB)
const now = new Date();                // Native Date (0KB)

// Parallel operations
const [user, settings, prefs] = await Promise.all([
  env.USERS.get(id),
  env.SETTINGS.get(id),
  env.PREFS.get(id),
]);
```

## Integration Points

### Complementary to Existing Components
- **edge-performance-oracle agent**: Handles comprehensive performance analysis, SKILL provides immediate optimization
- **workers-runtime-validator SKILL**: Complements runtime checks with