From ecc
Benchmarks web page Core Web Vitals/bundle sizes, API latency under load, build times; detects regressions via before/after PR comparisons.
npx claudepluginhub krishnendu409/everything-claude-free-versionThis skill uses the workspace's default tool permissions.
- Before and after a PR to measure performance impact
Generates platform-native social content for X, LinkedIn, TikTok, YouTube, newsletters from source material like articles, demos, docs, or notes. Adapts voice and format per platform.
Interactively installs Everything Claude Code skills and rules to user-level (~/.claude) or project-level (.claude) directories, verifies paths, and optimizes files. Activate on 'configure ecc' or setup requests.
Reorganizes X and LinkedIn networks: review-first pruning of low-value follows, priority-based add/follow recommendations, and drafts warm outreach in user's voice.
Measures real browser metrics via browser MCP:
1. Navigate to each target URL
2. Measure Core Web Vitals:
- LCP (Largest Contentful Paint) — target < 2.5s
- CLS (Cumulative Layout Shift) — target < 0.1
- INP (Interaction to Next Paint) — target < 200ms
- FCP (First Contentful Paint) — target < 1.8s
- TTFB (Time to First Byte) — target < 800ms
3. Measure resource sizes:
- Total page weight (target < 1MB)
- JS bundle size (target < 200KB gzipped)
- CSS size
- Image weight
- Third-party script weight
4. Count network requests
5. Check for render-blocking resources
Benchmarks API endpoints:
1. Hit each endpoint 100 times
2. Measure: p50, p95, p99 latency
3. Track: response size, status codes
4. Test under load: 10 concurrent requests
5. Compare against SLA targets
Measures development feedback loop:
1. Cold build time
2. Hot reload time (HMR)
3. Test suite duration
4. TypeScript check time
5. Lint time
6. Docker build time
Run before and after a change to measure impact:
/benchmark baseline # saves current metrics
# ... make changes ...
/benchmark compare # compares against baseline
Output:
| Metric | Before | After | Delta | Verdict |
|--------|--------|-------|-------|---------|
| LCP | 1.2s | 1.4s | +200ms | WARNING: WARN |
| Bundle | 180KB | 175KB | -5KB | ✓ BETTER |
| Build | 12s | 14s | +2s | WARNING: WARN |
Stores baselines in .ecc/benchmarks/ as JSON. Git-tracked so the team shares baselines.
/benchmark compare on every PR/canary-watch for post-deploy monitoring/browser-qa for full pre-ship checklist