Web performance review

Created by CodeCraft LLC

Review and improve web performance with a code-level checklist

Product and technology names are trademarks of their respective owners, used only to identify what this skill covers. CodeCraft LLC is not affiliated with or endorsed by them.

by Jace (@jamick)v1.1.0 · updated 2026-10-16Report copyright infringement

Description

Review and improve web performance with a code-level checklist — Core Web Vitals targets (LCP, INP, CLS at p75) and field vs lab data, LCP image and font strategy, render-blocking resources, JavaScript bundle size and code splitting, React Server Components to cut client JS, third-party script loading, hydration cost, INP fixes (long tasks, yielding, transitions), layout-shift prevention, caching/CDN and compression, and performance budgets in CI — for Next.js and other React apps. Use whenever the user asks why a page is slow, wants better Lighthouse/PageSpeed scores, reviews a PR for performance regressions, or sets performance budgets. For live profiling with browser DevTools, pair with the installed web-perf skill.

#security#web#performance

Included with all-access

$9.00 value as a single download

AiSkillz is in preview: browse the catalogue now - skill downloads and subscriptions open soon.

All skills are included with the all-access subscription

Changelog

v1.1.0Oct 16, 2026Latest

Added

references/core-web-vitals.md: a per-metric Core Web Vitals fix guide (LCP sub-parts, INP long tasks and scheduler.yield, CLS causes) - merged from the former core-web-vitals skill.

v1.0.1Oct 3, 2026

Changed

Added a trademark notice to the README.

v1.0.0Oct 2, 2026

Added

First release.