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
Free · No signup · No trial clock
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caching
zebbern/claude-code-guide
Caching strategies — invalidation, TTL guidelines, cache keys, cache layers, and when not to cache. Use when implementing or reviewing caching logic.
git-profile
sd0xdev/sd0x-dev-flow
Git identity and GPG signing profile manager. Discovers profiles from GPG + git config, switches local identity, checks signing health. Use when: user says 'switch identity', 'git profile', 'check signing', 'gpg key status', 'which identity', or /git-profile
react-expert
alexander-danilenko/cortex-ai-skills
Use when building React 18+ applications requiring component architecture, hooks patterns, or state management. Invoke for Server Components, performance optimization, Suspense boundaries, React 19 features.
arkcli-profile
volcengine/ark-cli
arkcli profile 切面管理：列出、查看、新建、切换、删除、重命名 profile；管理 profile 内 API Key 列表；管理五类 profile 的默认资源与持久身份切面。临时 API Key/Base URL/Endpoint 调用不写回 profile，按 arkcli-shared 的 execution-context 契约执行。旧 config 子命令已 deprecated。
frontend-lighthouse
sickn33/agentic-awesome-skills
Add a portable Lighthouse CI gate for production frontend builds with Core Web Vitals budgets, category floors, median runs, and CI artifacts.
rushstack-best-practices
microsoft/rushstack
Provides best practices and guidance for working with Rush monorepos. Use when the user is working in a Rush-based repository, asks about Rush commands (install, update, build, rebuild), needs help with project selection, dependency management, build caching, subspace configuration, or troubleshooting Rush-specific issues.
vertex-ai-api-dev
google-gemini/gemini-skill
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.
react-core
alicoder001/agent-skills
React component patterns, hooks, state management, and Vercel-inspired performance optimizations. Use for React development including re-render prevention, derived state, functional setState, and component composition.
claw-metagenomics
clawbio/clawbio
Shotgun metagenomics profiling — taxonomy, resistome, and functional pathways
running-github-actions-efficiently
wdm0006/python-skills
Cut GitHub Actions minutes and wall-clock time without losing coverage — the OS billing multiplier (macOS 10x / Windows 2x / Linux 1x), trigger hygiene that stops push+pull_request double-firing, concurrency that cancels superseded runs, dependency caching keyed on lockfiles, matrix discipline, and auditing scheduled crons that bill 24/7. Use when CI is burning included minutes, when runs feel slow, when setting up a new repo's workflows, or when reviewing an existing workflow for waste.
redux
alicoder001/agent-skills
Redux Toolkit and RTK Query patterns for state management. Use for global state, API caching, and complex state logic. Includes slices, thunks, and query endpoints.
database-optimizer
megastep/codex-skills
Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution.
sentry-react-router-framework-sdk
getsentry/sentry-for-claude
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.
github-actions-docs
xixu-me/skills
Use when users ask how to write, explain, customize, migrate, secure, or troubleshoot GitHub Actions workflows, workflow syntax, triggers, matrices, runners, reusable workflows, artifacts, caching, secrets, OIDC, deployments, custom actions, or Actions Runner Controller, especially when they need official GitHub documentation, exact links, or docs-grounded YAML guidance.
temporal-cloud
temporalio/skills-temporal-cloud
Fix Temporal Cloud connection, auth, and config problems. Use when users hit login failures, can't connect to Cloud, get x509/TLS errors, have namespace or endpoint mismatches, paste broken SDK connection snippets, are confused about which endpoint to use, see "no pollers" or RESOURCE_EXHAUSTED, struggle with PrivateLink/PSC, or need help setting up a new namespace. Also use for HA namespace failover and DNS issues. Not for worker performance tuning or scaling.
pandas
the-perfect-developer/the-perfect-opencode
This skill should be used when the user asks to "use pandas", "analyze data with pandas", "work with DataFrames", "clean data with pandas", or needs guidance on pandas best practices, data manipulation, performance optimization, or common pandas patterns.
web-quality
georgekhananaev/claude-skills-vault
Web quality optimization skills based on Google Lighthouse guidelines and Core Web Vitals. Use when asked to audit web quality, optimize performance, improve accessibility, fix SEO, apply best practices, or analyze Core Web Vitals (LCP, INP, CLS).
senior-frontend
nilecui/skillsbase
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.
core-web-vitals
jgamaraalv/ts-dev-kit
Core Web Vitals reference for measuring, diagnosing, and improving LCP, INP, and CLS. Use when: (1) auditing page performance against Google's thresholds, (2) implementing the web-vitals JS library for field monitoring, (3) diagnosing slow LCP, high INP, or layout shifts, (4) choosing between field and lab measurement tools, (5) optimizing specific metrics with the Chrome team's top recommendations, (6) explaining what each metric measures to non-technical stakeholders, or (7) generating a visual CWV report from metric values or a Lighthouse JSON file.
cpp-pro
hainamchung/agent-assistant
Write idiomatic C++ code with modern features, RAII, smart pointers, and STL algorithms. Handles templates, move semantics, and performance optimization.
golang-pro
davila7/claude-code-templates
Master Go 1.21+ with modern patterns, advanced concurrency, performance optimization, and production-ready microservices.
node-ci
paldom/node-skills
Authors GitHub Actions CI for Node projects - version matrices derived from engines, setup-node caching, pnpm setup without corepack, a fail-closed all-checks aggregator, merge_group support, concurrency. Use when the user asks to set up CI, add a Node test matrix, cache installs, or fix required checks and merge queues. Not for release/publish pipelines or dependency-update policy.
mobile-performance
cosmicstack-labs/mercury-agent-skills
App startup, memory management, battery efficiency, network optimization, and profiling tools
wigolo-crawl
knockoutez/wigolo
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golang-pro
herdiansah/antigravity-skills-master
Master Go 1.21+ with modern patterns, advanced concurrency, performance optimization, and production-ready microservices. Expert in the latest Go ecosystem including generics, workspaces, and cutting-edge frameworks. Use PROACTIVELY for Go development, architecture design, or performance optimization.
oracle
full-statck-skills/database-skills
Provides comprehensive guidance for Oracle database including SQL, PL/SQL, functions, performance tuning (AWR/ASH), backup (RMAN), Data Guard, and RAC. Use when the user asks about Oracle, needs to write Oracle SQL, work with PL/SQL, or manage Oracle databases.
cache-strategy
manastalukdar/ai-devstudio
Implement caching strategies for HTTP, service workers, and memoization
frontend-lighthouse
stareezy-1/frontend-architecture-skill
A portable, framework-agnostic Lighthouse CI performance-gate system for any web frontend. Enforces Core Web Vitals budgets (LCP, INP via the TBT lab proxy, CLS) and category score floors (performance, SEO, accessibility, best-practices) as a blocking CI check on every pull request. Runs Lighthouse against the production build with median-of-N runs for stability, on mobile emulation by default with an opt-in desktop form factor. Ships a single `lighthouserc.cjs` config, an npm `lhci` script, and a GitHub Actions workflow. Use this skill when adding performance gates to a project, configuring Lighthouse CI, tuning Core Web Vitals budgets, setting category score thresholds, wiring a Lighthouse GitHub Action, or debugging flaky or failing Lighthouse runs. Works with Next.js, Remix, Astro, SvelteKit, Vite, or any app that serves a production build over HTTP.
performance-optimization
sanity-io/sanity
Optimizes application performance. Use when performance requirements exist, when you suspect performance regressions, or when Core Web Vitals or load times need improvement. Use when profiling reveals bottlenecks that need fixing.
javascript-pro
hainamchung/agent-assistant
Use when building JavaScript applications with modern ES2023+ features, async patterns, or Node.js development. Invoke for vanilla JavaScript, browser APIs, performance optimization, module systems.
golang-pro
itsimonfredlingjack/codex-dev-plugin
Master Go 1.21+ with modern patterns, advanced concurrency, performance optimization, and production-ready microservices. Expert in the latest Go ecosystem including generics, workspaces, and cutting-edge frameworks. Use PROACTIVELY for Go development, architecture design, or performance optimization.
bx-orm-querying
ortus-boxlang/skills
Use this skill when querying ORM entities: EntityLoad(), EntityLoadByPK(), EntityLoadByExample(), ORMExecuteQuery(), HQL queries, filtering, sorting, pagination, caching query results, and entity lifecycle BIFs (EntitySave, EntityDelete, EntityNew, EntityMerge).
performance-optimization
insulinocytus/skills
Optimizes application performance across frontend, backend, queries, and databases. Use when performance requirements exist, when you suspect performance regressions, when Core Web Vitals or load times need improvement, when N+1 query patterns need fixing, or when profiling reveals bottlenecks.
frontpage-profile
dfectuoso/frontpage-sh-skills-dev
Claim or update a wallet display name and avatar on frontpage.sh for $0.01 via MPP. The wallet that pays is the identity. Check any wallet's profile and activity at /api/profiles/{wallet}.
windows-perf
guyvdn/skills
Use this skill only when the user explicitly asks to diagnose CPU spikes, fix Windows performance issues, disable telemetry services, or clean up startup items on Windows.
architecture-strategist
udn/jasminedesignsystem
Principal Architect role that plans site architecture, user flows, data models, page templates, component inventory, performance budgets, and SEO structure for PAUD Jasmine Al Muflihuun. Use when the user asks to plan site structure, define user journeys, create a sitemap, design data models, set performance targets, plan SEO, audit the architecture, add new pages/features, or coordinate across content-architect, frontend-architect, and design-system-generator.
databricks-core
kilo-org/kilo-marketplace
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sql-pro
hainamchung/agent-assistant
Master modern SQL with cloud-native databases, OLTP/OLAP optimization, and advanced query techniques. Expert in performance tuning, data modeling, and hybrid analytical systems.
cpp-pro
davila7/claude-code-templates
Write idiomatic C++ code with modern features, RAII, smart pointers, and STL algorithms. Handles templates, move semantics, and performance optimization.
golang-pro
hainamchung/agent-assistant
Master Go 1.21+ with modern patterns, advanced concurrency, performance optimization, and production-ready microservices.
nextjs
yldgio/codereview-skills
Next.js 14+ App Router patterns, Server Components, API routes, and performance optimization
kubernetes-specialist
hainamchung/agent-assistant
Use when deploying or managing Kubernetes workloads requiring cluster configuration, security hardening, or troubleshooting. Invoke for Helm charts, RBAC policies, NetworkPolicies, storage configuration, performance optimization.
coldbox-configuration
coldbox/skills
Use this skill when configuring a ColdBox application in ColdBox.cfc, setting up environments, managing module settings, defining datasources, configuring logging with LogBox, setting up caching with CacheBox, or wiring dependencies with WireBox settings.
check-caching-strategy
dykyi-roman/awesome-claude-code
Analyzes PHP code for caching opportunities and issues. Detects missing cache, cache invalidation problems, over-caching, repeated expensive operations.
caching-strategies
mickeyyaya/refactoring-skills
Use when designing or reviewing caching layers — covers cache-aside/read-through/write-through/write-behind patterns, cache stampede and thundering herd prevention, CDN caching with Cache-Control headers, eviction policies (LRU/LFU/TTL/adaptive), multi-layer cache architecture, cache invalidation strategies, and anti-patterns with red flags across TypeScript, Go, Python, and Redis CLI
cache
joaoseidel/ktor-toolkit
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jobs-create-profile
solid-company/solid-jobs-skills
Turn a plain-language self-description (or pasted CV) into a stored candidate profile, and manage existing profiles. Use when the user says "set up my profile", "here's my CV", "update my preferences", "what's in my profile", or "switch profile". The saved profile is what /jobs-evaluate and /jobs-digest score offers against.
frontend-performance-review
me-shaon/agent-skills
Review Laravel frontend performance, responsiveness, and Lighthouse-impacting best practices.
performance
ilang-ai/autocode
Optimize for speed and cost. Pick lightweight solutions. Flag expensive operations.
sentry-instrument
getsentry/plugin-codex
Instrument an application with Sentry — detect the platform, install and initialize the SDK if needed, and wire up any signal — error monitoring, tracing/performance, logging, metrics, profiling, session replay, user feedback, cron check-ins, and AI/LLM monitoring (agent runs, token cost, and conversations for OpenAI, Anthropic, Vercel AI, LangChain, Google GenAI, Pydantic AI, and Laravel AI). Use to add Sentry to a project or to capture more than errors.
vercel-optimize
vercel-labs/claude-skills
Use for Vercel cost and performance optimization on deployed projects, especially Next.js, SvelteKit, Nuxt, and limited Astro apps. Collect Vercel metrics, usage, project config, and code scan results first; investigate only metric-backed candidates; produce ranked recommendations grounded in verified files and version-aware Vercel/framework docs. Trigger for Vercel bill reduction, slow or expensive routes, caching opportunities, Function Invocations, Build Minutes, Fast Data Transfer, Core Web Vitals, Bot Management, Fluid compute, or cost breakdown requests.
moai-platform-firestore
modu-ai/moai-rank
Firebase Firestore specialist covering NoSQL patterns, real-time sync, offline caching, and Security Rules. Use when building mobile-first apps with offline support, implementing real-time listeners, or configuring Firestore security.
performance-capacity
majiayu000/spellbook
Plan, diagnose, and verify performance budgets, latency targets, load tests, capacity estimates, bottleneck analysis, caching strategy, query efficiency, queue throughput, and regression gates. Use when a feature may be slow, a system must scale, a performance regression is suspected, or release readiness depends on throughput, cost, memory, CPU, or response time.
spark-engineer
hainamchung/agent-assistant
Use when building Apache Spark applications, distributed data processing pipelines, or optimizing big data workloads. Invoke for DataFrame API, Spark SQL, RDD operations, performance tuning, streaming analytics.
frontend-fullchain-optimization
mindfold-ai/trellis
Frontend full-chain performance optimization guide based on Web Vitals metrics. Provides metric thresholds, diagnostic methods, and optimization strategies for LCP, FCP, INP, CLS, TTFB, TBT. Use when optimizing frontend performance, analyzing Web Vitals, reducing page load time, fixing layout shifts, improving interaction responsiveness, or reviewing frontend code for performance issues.
caching-strategies-knowledge
dykyi-roman/awesome-claude-code
Caching Strategies knowledge base. Provides caching patterns (Cache-Aside, Read-Through, Write-Through, Write-Behind), invalidation approaches, multi-level caching, and Redis data structures for caching audits and generation.
loom-caching
cosmix/loom
Caching strategies for performance optimization — cache-aside, write-through, write-behind, TTL policies, eviction, and stampede prevention. Use for Redis/Memcached, CDN caching, database query caching, ML model caching, and distributed cache design.
profile
pytorch/executorch
Profile ExecuTorch model execution. Use when measuring performance, analyzing operator timing, or debugging slow models.
frontend-engineering
magnus919/agent-skills
Build and maintain web frontends — component architecture, state management,
refactor-web-performance
ahmedbenaw/refactor-chain
Use this skill when a web page or app feels slow to load or janky and the user wants it measured and fixed — plain triggers like \"the page loads slowly\", \"it's laggy\", \"first paint takes forever\", \"improve my Lighthouse score\", \"fix LCP/CLS/TBT\", \"why is the site sluggish\", \"the layout jumps around\". It runs a trace/Lighthouse-style audit of the Core Web Vitals (LCP, CLS, TBT/INP), finds the single biggest offender, fixes it, and re-measures to prove the win. It is the do-the-work step of the refactor-chain DEBUG lane, reached when the harness classifies a case as debug/web-performance. Uses a browser/DevTools tracing tool when one is available; otherwise falls back to static evidence.