Best web performance skills, page 2

Make a site behave on real phones — the defects no Lighthouse run or headless scroll test sees, learned from site owners reviewing production sites on an iPhone.

textura-agency/next16-claude-starter

Builds 3D web scenes with Three.js and React Three Fiber, with attention to art direction, a performance budget, mobile behavior and fallbacks.

madebyaris/advance-minimax-m3-cursor-rules

References cold start optimization history and techniques. An agent skill from serithemage/serverless-openclaw.

serithemage/serverless-openclaw

Provides React Native performance optimization guidelines for FPS, TTI, bundle size, memory leaks, re-renders, and animations.

callstackincubator/agent-skills

A skill your agent uses when writing Playwright tests, fixing flaky tests, debugging failures, implementing Page Object Model, configuring CI/CD, optimizing performance, mocking APIs, handling…

sanity-io/sanity

Publishes already-built static pages to a GitHub Pages repo under a year, year-month and slug folder layout, optimizes large images and returns the public URL.

artwist-polyakov/polyakov-claude-skills

A skill your agent uses to durably record a hard constraint or invariant that the work must respect.

harrylettering/CodeMemory

Get a page into Lighthouse's green zone on desktop and mobile, for people AND for the robot form crawlers get — build it, audit all four categories (Performance, Accessibility, Best Practices, SEO)…

textura-agency/next16-claude-starter

Audits alt text, file size, format, and responsive markup on page images, and flags a missing WebP or AVIF fallback.

AgriciDaniel/claude-seo

Migrate an existing Vite and React Router SPA to vite-ssr-boost SSR in Data mode, preserving route objects and checking streaming, hydration, bundle size, and deployment readiness.

Lomray-Software/vite-ssr-boost

Performance regression detection using the browse daemon. An agent skill from mr-daedalium/ostack-saas.

mr-daedalium/ostack-saas

效能分析與最佳化：量測 baseline、定位瓶頸、優化最高影響項、驗證改善效果。適用於應用程式慢、API 超時、前端 Core Web Vitals 問題。

zeuikli/claude-code-workspace

React performance optimization guidelines from Vercel Engineering (vercel-labs/agent-skills).

ryokun6/ryos

Structured diagnostic for technical SEO problems. An agent skill from galfrevn/apollo.

galfrevn/apollo

Audit, diagnose, or optimize website loading and interaction performance, Core Web Vitals, and Lighthouse performance scores.

cloudflare/skills

Expert workflow for reviewing Tauri 2 desktop app performance.

mukiwu/tempo-term

Comprehensive SEO analysis for any website, page, business, or topic.

AgriciDaniel/codex-seo

Builds the desktop Vite and iOS or Android Metro production bundles and checks them for tree-shaking problems, such as mobile-only modules leaking into the desktop build.

keybase/client

Publish static page artifacts to SourceCraft Sites (Yandex infrastructure, works in Russia), with advisory image optimization and an original-image path.

artwist-polyakov/polyakov-claude-skills

Install and integrate Ignite UI Web Components packages into React, Angular, Vue 3, LitElement, or vanilla JS/HTML apps, detecting the framework and applying framework-specific setup (package…

IgniteUI/igniteui-webcomponents

Optimizes application performance across frontend, backend, queries, and databases.

dzhalaevd/Donatello

Sets out how to write React components in LobeHub: which styling approach to use, which component libraries to prefer and in what order.

lobehub/lobehub

Measure runtime perf, bundle size, and memory impact of unicode-segmenter changes.

cometkim/unicode-segmenter

A skill your agent uses when measuring what the Trilium client loads at startup — "what loads at boot?", "did this change reduce the startup bundle?", "is <dependency lazy?", or any before/after…

TriliumNext/Trilium

When the user wants to audit, review, or diagnose SEO issues on their site.

unifapi-agent/agents

A skill your agent uses when making a web UI conform to WCAG 2.2 Level AA — axe-core or Lighthouse a11y violations, keyboard operability, focus management, ARIA roles/names/live regions, contrast…

ericrisco/rsc-harness

Autonomous experiment loop for optimization research. An agent skill from Factory-AI/factory-plugins.

Factory-AI/factory-plugins

Frontend development skill for React, Next.js, TypeScript, and Tailwind CSS applications.

alirezarezvani/claude-skills

Establishes page load, Core Web Vitals and resource-size baselines, then compares before and after on every pull request to track performance trends over time.

garrytan/gstack

A skill your agent uses when 用户需要优化前端性能、提升页面加载速度、减少白屏时间、优化交互流畅度、进行性能排查时。触发场景：前端性能优化、页面加载慢、白屏时间长、卡顿、LCP/FID/CLS指标优化、前端性能分析、打包体积优化。

ProgrammerAnthony/Expert-Coding-Harness

Measure performance baselines and detect regressions across browser Core Web Vitals (LCP, INP, CLS, page weight), API endpoint latency percentiles, and build/test feedback times, with before/after…

affaan-m/ECC

Nuxt 4 app patterns for hydration safety, performance, route rules, lazy loading, and SSR-safe data fetching with useFetch and useAsyncData.

affaan-m/ECC

Rules for writing a Handsontable cell renderer: a pure function that calls baseRenderer first, sets text safely and stays cheap because it runs for every visible cell.

handsontable/handsontable

Guide to Handsontable's performance-tests package: Playwright scenarios measured through CDP traces and compared against golden baselines taken from the develop branch.

handsontable/handsontable

A skill your agent uses when a task changes any screen, form, dialog, menu or control - Lighthouse/axe scan of the changed screens, a keyboard walk, and the thresholds that fail a task

makifbaysal/tasktrooper

Measure whether the chat jumps while a turn runs by sampling the Working line's position over CDP and counting upward moves. Use when changing step…

different-ai/openwork

Reduce plugin page load bundle size and avoid unnecessary increases in packages/kbn-rspack-optimizer/limits.yml.

elastic/kibana

Frontend rendering optimization, code splitting, memoization strategies, bundle size control, asset optimization, and memory management.

TheSoftwareHouse/copilot-collections

Measure and improve Palot desktop runtime performance. An agent skill from ItsWendell/palot.

ItsWendell/palot

Optimize website and web application performance including loading speed, Core Web Vitals, bundle size, caching strategies, and runtime performance

davila7/claude-code-templates

Runs the frontendchecklist CLI against local files or a deployed URL to check code against 380+ accessibility, performance, SEO and security rules, with fixable, cited findings.

thedaviddias/Front-End-Checklist

React performance optimization guidelines. An agent skill from poteto/noodle.

poteto/noodle

Builds Angular 17+ features with standalone components, signals, NgRx state, RxJS patterns and lazy-loaded routing, then checks bundle size and test coverage.

Jeffallan/claude-skills

Builds Next.js 14+ apps on the App Router with server components, server actions, explicit caching, SEO metadata, loading and error boundaries and Vercel deployment.

Jeffallan/claude-skills

Builds React 19 components in TypeScript with Server Components, useActionState forms, custom hooks and state libraries, checked with tsc and React Testing Library.

Jeffallan/claude-skills

Builds Vue 3 apps with the Composition API and script setup, Pinia state, Nuxt 3, Vite tuning and Quasar or Capacitor mobile builds, checked with vue-tsc and Vitest.

Jeffallan/claude-skills

A skill your agent uses when the user asks to "pre-launch check the landing page", "run a Quality-Score preflight", or "verify ad-to-page message match before launch"; produces an ad↔page continuity…

aaron-he-zhu/aaron-marketing-skills

Audit, plan, and implement SEO improvements across technical SEO, on-page optimization, structured data, Core Web Vitals, and content strategy.

affaan-m/ECC