frontend-performance
Provides a comprehensive guide for optimizing frontend performance, focusing on Core Web Vitals, bundle size reduction, and rendering strategies.
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Security score
The frontend-performance skill was audited on Feb 24, 2026 and we found 14 security issues across 3 threat categories. Review the findings below before installing.
Categories Tested
Security Issues
low line 168
Fetch to external URL
SourceSKILL.md
| 168 | const data = await fetch('https://api.example.com/data') |
low line 359
Fetch to external URL
SourceSKILL.md
| 359 | const posts = await fetch('https://api.example.com/posts', { |
low line 284
Access to .env file
SourceSKILL.md
| 284 | enabled: process.env.ANALYZE === 'true', |
low line 46
External URL reference
SourceSKILL.md
| 46 | - **[web.dev Performance](https://web.dev/performance/)** - Googleパフォーマンスガイド |
low line 47
External URL reference
SourceSKILL.md
| 47 | - [Core Web Vitals](https://web.dev/vitals/) |
low line 48
External URL reference
SourceSKILL.md
| 48 | - [Optimize LCP](https://web.dev/optimize-lcp/) |
low line 49
External URL reference
SourceSKILL.md
| 49 | - [Optimize INP](https://web.dev/optimize-inp/) |
low line 51
External URL reference
SourceSKILL.md
| 51 | - **[Next.js Performance](https://nextjs.org/docs/app/building-your-application/optimizing)** - Next.js最適化ガイド |
low line 52
External URL reference
SourceSKILL.md
| 52 | - [Images](https://nextjs.org/docs/app/building-your-application/optimizing/images) |
low line 53
External URL reference
SourceSKILL.md
| 53 | - [Fonts](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) |
low line 64
External URL reference
SourceSKILL.md
| 64 | - **[Can I Use](https://caniuse.com/)** - ブラウザサポート確認 |
low line 168
External URL reference
SourceSKILL.md
| 168 | const data = await fetch('https://api.example.com/data') |
low line 359
External URL reference
SourceSKILL.md
| 359 | const posts = await fetch('https://api.example.com/posts', { |
low line 520
External URL reference
SourceSKILL.md
| 520 | npx lighthouse https://example.com --view |
Scanned on Feb 24, 2026
View Security DashboardInstall this skill with one command
/learn @gaku52/frontend-performance