Measurement-first React performance optimization — profiling, Core Web Vitals, rendering, bundle size, React Compiler, Server Components, virtualization
Plugin react-performance from marketplace leahycc-skills in LeahyCC/claude-skills. Commands read from the repo's manifest — 13 days ago.
react-performanceUse when optimizing React component rendering, fixing Core Web Vitals (LCP, INP, CLS), reducing bundle size, diagnosing re-renders, a store update under a large tree, code splitting, memoization decisions, Server Component patterns, or profiling React apps. Covers React 19, React Compiler, useTransi
OWASP API Security Top 10 (2023) and Web Top 10 (2025) with production Next.js App Router code: access control, authentication with MFA and password reset, input validation, rate limiting, security headers and CSRF, data exposure, supply chain, SSRF, file uploads, and AI tools on those APIs
1 skill
Everything drawn with text characters, for work or fun: diagrams, tables, bar charts, sparklines, banners, boxes, pictures, pixel sprites, kaomoji, game boards and mazes. Draws on a grid, hands the counting to 5 Node scripts, and checks alignment before showing.
1 skill
Code a cold reader can follow: no floating (magic) numbers or strings without a name or a unit-and-why note nearby, names that carry units and do not lie, small single-purpose functions, shallow nesting, honest comments, no dead code, and balanced ESLint tuning.
1 skill
Silent bugs that pass typecheck and happy-path tests: 200 HTML fallbacks, pre-await state commits, swallowed catches, module singletons, Web API footguns, fresh-clone gaps, and false-green tests.
1 skill
OWASP LLM Top 10 (2026) and Agentic Top 10 (2026) when a model can see untrusted content or act with real credentials. Trust boundaries, tools, memory, MCP, supply chain, output handling, and human approval.
1 skill
Version-aware Next.js App Router guidance: component boundaries, data, caching, routing, proxy, errors, metadata, assets and migration. Scoped source review in skills/nextjs-app-router/SOURCES.md.
1 skill
Professional UI/UX design intelligence for AI coding assistants. Includes searchable databases of styles, colors, typography, charts, and UX guidelines for React, Next.js, Astro, Vue, Nuxt.js, Nuxt UI, Svelte, SwiftUI, React Native, Flutter, Tailwind, shadcn/ui, Jetpack Compose, Angular, Laravel, JavaFX, and Three.js.
7 skills
Official Next.js skills: adopt and optimize Cache Components, adopt Partial Prefetching, and verify runtime behavior against a running dev server.
6 skills
Token usage tracking, model cost attribution per agent, budget alerts, and optimization recommendations
24 skills · 1 command · 1 agent · hooks
Reliable automation, in-depth debugging, and performance analysis in Chrome using Chrome DevTools and Puppeteer
8 skills · 1 MCP server
Perform AI code review on Git diffs — supports workspace changes, branch ranges, and single commits with concurrent per-file analysis, codebase search, and deep context-aware review.
2 commands
Transform Claude into an Azure expert. This plugin integrates the Azure MCP server and specialized Azure skills to move beyond generic advice. It enables Claude to perform real-world tasks: listing resources, validating deployments, diagnosing infrastructure issues, and optimizing costs across 50+ Azure services.
44 skills · 1 MCP server
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