Bundle Size Auditor

You added one import. Your Lighthouse score dropped 12 points. Your LCP went from 1.8s to 3.1s.

This skill parses your bundler's output — webpack stats JSON, Vite build report, or Next.js .next/ directory — identifies the largest chunks, finds which packages are bloating them, detects treeshaking failures, and gives you the exact code changes to fix it.

Supports webpack, Vite, Rollup, Next.js. Zero external API.

Trigger Phrases

• "bundle too large", "my bundle is huge", "reduce bundle size"
• "webpack stats", "analyze webpack output", "chunk size"
• "bundle budget", "size limit", "bundle regression"
• "treeshaking not working", "dead code in bundle"
• "which package is largest", "find large dependencies"
• "Next.js bundle", "Vite build report"
• "/bundle-size-audit"