740 free skills
Performance skills
Skills for performance — profiling, caching strategy, database query tuning, and frontend load-time optimization.
Sourced from real, public repositories — synced daily, never invented.
740 free skills
Skills for performance — profiling, caching strategy, database query tuning, and frontend load-time optimization.
Sourced from real, public repositories — synced daily, never invented.
15 tools across six categories
13 of them never send your data anywhere
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modern-web-design
freshtechbro/claudedesignskills
Modern web design trends, principles, and implementation patterns for 2024-2025. Use this skill when designing websites, creating interactive experiences, implementing design systems, ensuring accessibility, or building performance-first interfaces. Triggers on tasks involving modern design trends, micro-interactions, scrollytelling, bold minimalism, cursor UX, glassmorphism, accessibility compliance, performance optimization, or design system architecture. References animation skills (GSAP, Framer Motion, React Spring), 3D skills (Three.js, R3F, Babylon.js), and component libraries for implementation guidance.
capacitor-best-practices
cap-go/capgo-skills
Best practices for Capacitor app development including project structure, plugin usage, performance optimization, security, and deployment. Use this skill when reviewing Capacitor code, setting up new projects, or optimizing existing apps.
godot-best-practices
jwynia/agent-skills
Guide AI agents through Godot 4.x GDScript coding best practices including scene organization, signals, resources, state machines, and performance optimization. This skill should be used when generating GDScript code, creating Godot scenes, designing game architecture, implementing state machines, object pooling, save/load systems, or when the user asks about Godot patterns, node structure, or GDScript standards. Keywords: godot, gdscript, game development, signals, resources, scenes, nodes, state machine, object pooling, save system, autoload, export, type hints.
sentry-android-sdk
getsentry/sentry-for-ai
Full Sentry SDK setup for Android. Use when asked to "add Sentry to Android", "install sentry-android", "setup Sentry in Android", or configure error monitoring, tracing, profiling, session replay, or logging for Android applications. Supports Kotlin and Java codebases.
sentry-dotnet-sdk
getsentry/sentry-for-ai
Full Sentry SDK setup for .NET. Use when asked to "add Sentry to .NET", "install Sentry for C#", or configure error monitoring, tracing, profiling, logging, or crons for ASP.NET Core, MAUI, WPF, WinForms, Blazor, Azure Functions, or any other .NET application.
sentry-php-sdk
getsentry/sentry-for-ai
Full Sentry SDK setup for PHP. Use when asked to "add Sentry to PHP", "install sentry/sentry", "setup Sentry in PHP", or configure error monitoring, tracing, profiling, logging, metrics, crons, or AI monitoring for PHP applications. Supports plain PHP, Laravel, and Symfony.
knowledge-graph
giuseppe-trisciuoglio/developer-kit
Manage persistent Knowledge Graph for specifications. Provides read, query, update, and validation capabilities for codebase analysis caching. Use when: spec-to-tasks needs to cache/reuse codebase analysis, task-implementation needs to validate task dependencies or contracts, spec-quality needs to synchronize provides, or any command needs to query existing patterns/components/APIs. Reduces redundant codebase exploration by caching agent discoveries.
senior-frontend
davila7/claude-code-templates
Comprehensive frontend development skill for building modern, performant web applications using ReactJS, NextJS, TypeScript, Tailwind CSS. Includes component scaffolding, performance optimization, bundle analysis, and UI best practices. Use when developing frontend features, optimizing performance, implementing UI/UX designs, managing state, or reviewing frontend code.
mapbox-web-performance-patterns
mapbox/mapbox-agent-skills
Performance optimization patterns for Mapbox GL JS web applications. Covers initialization waterfalls, bundle size, rendering performance, memory management, and web optimization. Prioritized by impact on user experience.
nextjs-seo
laguagu/claude-code-nextjs-skills
Next.js App Router SEO optimization and auditing. Use when implementing or fixing SEO in a Next.js app — metadata and generateMetadata, viewport/themeColor, Open Graph and og/twitter images (file conventions + ImageResponse), web app manifest, favicons/icons, sitemap.xml, robots.txt, canonical URLs, hreflang/i18n alternates, JSON-LD structured data and rich results, Core Web Vitals (LCP/INP/CLS), AI search/GEO and AI crawler rules (GPTBot, OAI-SearchBot), or diagnosing Google indexing problems (Search Console, "Discovered/Crawled - currently not indexed"). Also use to run an SEO audit checklist. Not for general Next.js feature work unrelated to SEO.
sentry-flutter-sdk
getsentry/sentry-for-ai
Full Sentry SDK setup for Flutter and Dart. Use when asked to "add Sentry to Flutter", "install sentry_flutter", "setup Sentry in Dart", or configure error monitoring, tracing, profiling, session replay, or logging for Flutter applications. Supports Android, iOS, macOS, Linux, Windows, and Web.
migrating-to-amazon-redshift
aws/agent-toolkit-for-aws
Guides an end-to-end data-warehouse migration to Amazon Redshift — discovery, schema/SQL/stored-procedure/macro/script conversion, data migration, validation, performance comparison, and reporting. Source-routed via `references/<source>/`; Teradata (Vantage) is the supported source; additional sources are added as their own `references/<source>/` sets. Text-only knowledge (no executable code) — the AI generates all execution at runtime. Applies when a user wants to migrate Teradata to Amazon Redshift, convert Teradata DDL/SQL/stored procedures/macros/BTEQ to Redshift/RSQL, or assess Teradata-to-Redshift migration complexity. Applies only to migrations targeting Amazon Redshift; migrations to other platforms (Snowflake, BigQuery, Databricks, etc.) are out of scope regardless of source. Does not cover general Redshift administration, performance tuning, or troubleshooting of existing Redshift clusters (no migration involved), or sources not listed under references/.
react-performance-optimization
nickcrew/claude-cortex
React performance optimization patterns using memoization, code splitting, and efficient rendering strategies. Use when optimizing slow React applications, reducing bundle size, or improving user experience with large datasets.
sentry-ruby-sdk
getsentry/sentry-for-ai
Full Sentry SDK setup for Ruby. Use when asked to add Sentry to Ruby, install sentry-ruby, setup Sentry in Rails/Sinatra/Rack, or configure error monitoring, tracing, logging, metrics, profiling, or crons for Ruby applications. Also handles migration from AppSignal, Honeybadger, Bugsnag, Rollbar, or Airbrake. Supports Rails, Sinatra, Rack, Sidekiq, and Resque.
nemo-mbridge-perf-moe-optimization-workflow
nvidia/skills
Evidence-gated workflow for MoE performance optimization in Megatron Bridge. Covers measurement contracts, the Three Walls framework, parallel folding, profiling, matched A/B tuning, and final validation.
dt-obs-frontends
dynatrace/dynatrace-for-ai
Real User Monitoring (RUM) on Dynatrace — web and mobile frontends. Core Web Vitals, user sessions, page performance, mobile crashes, frontend errors, and frontend-backend linking. Query via `user.events`, `user.sessions`, and `dt.frontend.*` metrics. Does NOT cover synthetic monitoring (HTTP/browser/network checks) — that's a separate domain.
mapbox-data-visualization-patterns
mapbox/mapbox-agent-skills
Patterns for visualizing data on maps including choropleth maps, heat maps, 3D visualizations, data-driven styling, and animated data. Covers layer types, color scales, and performance optimization.
sentry-react-router-framework-sdk
getsentry/sentry-for-ai
Full Sentry SDK setup for React Router Framework mode. Use when asked to "add Sentry to React Router Framework", "install @sentry/react-router", or configure error monitoring, tracing, profiling, session replay, logs, or user feedback for a React Router v7 framework app.
nitro
antfu/skills
Nitro is the framework-agnostic server toolkit (powering Nuxt) for building and deploying web servers anywhere. Use when working with nitro.config, server routes/event handlers, route rules, caching, storage, tasks, websockets, or deploying to Node/Bun/Deno/Cloudflare/Vercel.
google-search-console
kostja94/marketing-skills
When the user wants to analyze Google Search Console data, use the GSC API, or interpret search performance. Also use when the user mentions "GSC," "Search Console," "indexing report," "Core Web Vitals," "Enhancements," "Insights report," "search performance," "search queries," "search performance report," "URL inspection," "impressions," "CTR," "average position," "index coverage," "GSC data analysis," "Search Console API," or "searchanalytics.query." When the user wants to rewrite title tags (not only report on them), use title-tag. For meta description rewrites, use meta-description.
vertex-ai-api-dev
google-gemini/gemini-skills
Guides the usage of Gemini API on Google Cloud Vertex AI with the Gen AI SDK. Use when the user asks about using Gemini in an enterprise environment or explicitly mentions Vertex AI. Covers SDK usage (Python, JS/TS, Go, Java, C#), capabilities like Live API, tools, multimedia generation, caching, and batch prediction.
cc-skill-frontend-patterns
sickn33/agentic-awesome-skills
Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices.
react-query
mindrally/skills
Guidelines for using React Query for data fetching, caching, and server state synchronization in React applications
msbuild-server
dotnet/skills
Guide for using MSBuild Server to improve CLI build performance. Activate when developers report slow incremental builds from the command line, or when CLI builds are noticeably slower than IDE builds. Covers MSBUILDUSESERVER=1 environment variable for persistent server-based caching. Do not activate for IDE-based builds (Visual Studio already uses a long-lived process).
csv-data-visualizer
ailabs-393/ai-labs-claude-skills
This skill should be used when working with CSV files to create interactive data visualizations, generate statistical plots, analyze data distributions, create dashboards, or perform automatic data profiling. It provides comprehensive tools for exploratory data analysis using Plotly for interactive visualizations.
optimize-for-gpu
k-dense-ai/scientific-agent-skills
GPU-accelerates scientific Python on NVIDIA hardware and verifies that the result is correct and faster. Use for CUDA/GPU optimization; CPU-bound NumPy, SciPy, pandas, scikit-learn, NetworkX, scikit-image, vector-search, image-processing, graph, simulation, or file-I/O workloads; CuPy, cuDF, cuML, cuGraph, cuVS, cuCIM, KvikIO, Warp, Newton, Numba-CUDA, or RAFT questions; and profiling, memory-transfer, kernel, or multi-GPU bottlenecks. Also use when large data-parallel Python code is slow and GPU acceleration is a plausible option, even if the user does not name CUDA.
react-devtools
callstackincubator/agent-device
Inspect and profile React Native component trees from agent-device. Use for React Native performance, profiling, props, state, hooks, render causes, slow components, excessive rerenders, or questions like why a component rerendered.
AgentDB Performance Optimization
ruvnet/ruflo
Optimize AgentDB performance with quantization (4-32x memory reduction), HNSW indexing (150x faster search), caching, and batch operations. Use when optimizing memory usage, improving search speed, or scaling to millions of vectors.
V3 Performance Optimization
ruvnet/ruflo
Achieve aggressive v3 performance targets: 2.49x-7.47x Flash Attention speedup, 150x-12,500x search improvements, 50-75% memory reduction. Comprehensive benchmarking and optimization suite.
seo-fundamentals
sickn33/agentic-awesome-skills
Core principles of SEO including E-E-A-T, Core Web Vitals, technical foundations, content quality, and how modern search engines evaluate pages.
lua
mindrally/skills
Lua development guidelines covering tables, metatables, error handling, game development, and performance optimization.
google-analytics
davila7/claude-code-templates
Analyze Google Analytics data, review website performance metrics, identify traffic patterns, and suggest data-driven improvements. Use when the user asks about analytics, website metrics, traffic analysis, conversion rates, user behavior, or performance optimization.
flutter-caching
flutter/skills
Cache data in a Flutter app
performance-profiling
sickn33/agentic-awesome-skills
Performance profiling principles. Measurement, analysis, and optimization techniques.
SEO Optimizer
davila7/claude-code-templates
Search Engine Optimization specialist for content strategy, technical SEO, keyword research, and ranking improvements. Use when optimizing website content, improving search rankings, conducting keyword analysis, or implementing SEO best practices. Expert in on-page SEO, meta tags, schema markup, and Core Web Vitals.
pagespeed-insights
enderpuentes/ai-agent-skills
Audit web pages for performance optimization following PageSpeed Insights guidelines. Use when analyzing page performance, optimizing web applications, reviewing performance metrics, implementing Core Web Vitals improvements, or when the user mentions page speed, performance optimization, Lighthouse scores, or Core Web Vitals.
recharts
andy-spike/skills
Build composable, responsive React charts with Recharts library. Use when creating data visualizations including line charts, area charts, bar charts, pie charts, scatter plots, and composed charts. Handles chart customization, responsive sizing, tooltips, legends, axes configuration, performance optimization, and accessibility.
three-best-practices
emalorenzo/three-agent-skills
Three.js performance optimization and best practices guidelines. Use when writing, reviewing, or optimizing Three.js code. Triggers on tasks involving 3D scenes, WebGL/WebGPU rendering, geometries, materials, textures, lighting, shaders, or TSL.
loading-sequence
patternsdev/skills
Teaches resource loading sequence optimization for Core Web Vitals. Use when you need to improve FCP, LCP, or FID by reordering how critical resources are discovered and loaded.
capacitor-performance
cap-go/capgo-skills
Performance optimization guide for Capacitor apps covering bundle size, rendering, memory, native bridge, and profiling. Use this skill when users need to optimize their app performance.
performance-engineer
sickn33/agentic-awesome-skills
Expert performance engineer specializing in modern observability,
python-pro
sickn33/agentic-awesome-skills
Master Python 3.12+ with modern features, async programming, performance optimization, and production-ready practices. Expert in the latest Python ecosystem including uv, ruff, pydantic, and FastAPI.
amazon-buy-box
nexscope-ai/amazon-skills
Amazon Buy Box strategy and optimization framework. Eligibility factor analysis, competitive pricing strategies, FBA vs FBM impact assessment, seller performance optimization, and Buy Box winning tactics. Use when the user asks about Amazon Buy Box, winning Buy Box, Buy Box eligibility, or Buy Box optimization.
numpy-best-practices
mindrally/skills
Best practices for NumPy array programming, numerical computing, and performance optimization in Python
prompt-caching
sickn33/agentic-awesome-skills
Caching strategies for LLM prompts including Anthropic prompt
react-best-practices
sickn33/agentic-awesome-skills
Comprehensive performance optimization guide for React and Next.js applications, maintained by Vercel. Use when writing new React components or Next.js pages, implementing data fetching (client or server-side), or reviewing code for performance issues.
technical-seo-checker
aaron-he-zhu/aaron-marketing-skills
Use when the user asks to "check technical SEO"; audits crawlability, indexing, Core Web Vitals, robots.txt, sitemaps, canonicals, redirects, and migrations. Not for on-page tags or content — use on-page-seo-checker. 技术SEO/网站速度
react-render-optimization
patternsdev/skills
Teaches React rendering performance optimization patterns. Use when reducing unnecessary re-renders, optimizing memoization, improving state design, or diagnosing React performance issues.
react-data-fetching
patternsdev/skills
Teaches modern React data fetching patterns with TanStack Query, SWR, and Suspense. Use when implementing caching, deduplication, optimistic updates, or parallel loading in React applications.
unity
mindrally/skills
Expert in Unity and C# game development with performance optimization patterns
vtex-io-service-paths-and-cdn
vtex/skills
Apply when defining service.json routes, choosing public vs segment vs private URL prefixes for VTEX IO services, or setting HTTP cache headers that interact with the VTEX edge and CDN. Covers path patterns, cookie visibility, edge caching behavior, and aligning Cache-Control with data sensitivity. Use for Node or .NET IO backends where request path and response headers determine CDN safety.
swr
mindrally/skills
Guidelines for using SWR (stale-while-revalidate) React Hooks for efficient data fetching, caching, and revalidation
tailwind-capacitor
cap-go/capgo-skills
Guide to using Tailwind CSS in Capacitor mobile apps. Covers mobile-first design, touch targets, safe areas, dark mode, and performance optimization. Use this skill when users want to style Capacitor apps with Tailwind.
seo-best-practices
mindrally/skills
Apply SEO best practices for web applications including metadata, performance optimization, and search engine optimization techniques.
ghost
mindrally/skills
Ghost CMS theme development with Handlebars templating, Alpine.js, Tailwind CSS, and performance optimization
domain-authority-auditor
aaron-he-zhu/aaron-marketing-skills
Use when auditing domain authority, trust, or citation credibility; runs a peer-relative 40-item CITE profile with evidence coverage and verified manipulation/penalty veto checks. Not for page-level content quality — use content-quality-auditor; not for backlink profiling alone — use offsite-signal-analyzer. 域名权威/网站可信度
shopify-theme-optimization
nexscope-ai/ecommerce-skills
Theme speed and UX optimization — Core Web Vitals, Liquid code, image loading, mobile responsiveness
headless-caching-strategy
vtex/skills
Apply when implementing caching logic, CDN configuration, or performance optimization for a headless VTEX storefront. Covers which VTEX APIs can be cached (Intelligent Search, Catalog) versus which must never be cached (Checkout, Profile, OMS), stale-while-revalidate patterns, cache invalidation, and BFF-level caching. Use for any headless project that needs TTL rules and caching strategy guidance.
vite
mindrally/skills
Expert guidance for Vite development with modern build tooling, HMR, framework integrations, and performance optimization
blazor
mindrally/skills
Guidelines for Blazor development including component lifecycle, state management, and performance optimization