performance-budget-lab
Use for website performance planning, Lighthouse/web-vitals checks, bundle/media/font budgets, Core Web Vitals triage, image/video optimization, animation performance, deployment readiness, and premium-site speed audits.
npx skills add TheGoat395/Codex-Skills --skill performance-budget-lab --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Performance Budget Lab Use this skill to keep visually rich sites fast. ## Budget Areas - JavaScript bundle size - route-level code splitting - image dimensions, formats, and lazy loading - video poster, preload, autoplay, and reduced-data behavior - font loading and fallback metrics - animation cost and scroll handlers - layout shift sources - server rendering/static rendering choices - caching and CDN behavior ## Workflow 1. Identify stack and deployment target. 2. Inspect package dependencies and route structure. 3. Run available build/lint/test commands. 4. Run Lighthouse or browser performance checks when feasible. 5. Check Core Web Vitals risks: LCP, CLS, INP, TTFB. 6. Optimize media before adding more JS. 7. Prefer CSS and Motion for small interactions; reserve GSAP/R3F/video for clear value. 8. Report tradeoffs honestly when visual richness costs performance. ## Output Give: - current risks - recommended budgets - concrete fixes - commands run - remaining uncertainty
- Budget Areas
- Workflow
- Output
What does the performance-budget-lab skill do?
Use for website performance planning, Lighthouse/web-vitals checks, bundle/media/font budgets, Core Web Vitals triage, image/video optimization, animation performance, deployment readiness, and premium-site speed audits.
How do I install it?
Run `npx skills add TheGoat395/Codex-Skills --skill performance-budget-lab --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From TheGoat395/Codex-Skills, a repository with 115 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.