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© 2026 Claude Skills·Learn more about Agent Skills

Claude Skills

aka. Agent Skills

Discover skills for AI coding agents. Works with Claude Code, OpenAI Codex, Gemini CLI, Cursor, and more.

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1875 MarketplacesSpecification
13225 verified skills
#SkillStars
5801
#5801

api-authentication

verified
auth

Secure API authentication with JWT, OAuth 2.0, API keys. Use for authentication systems, third-party integrations, service-to-service communication, or encountering token management, security headers, auth flow errors.

secondsky/claude-skills
42
5802
#5802

vulnerability-scanning

verified
security

Automated security scanning for dependencies, code, containers with Trivy, Snyk, npm audit. Use for CI/CD security gates, pre-deployment audits, compliance requirements, or encountering CVE detection, outdated packages, license compliance, SBOM generation errors.

secondsky/claude-skills
42
5803
#5803

web-performance-audit

verified
web

Web performance audits with Core Web Vitals, bottleneck identification, optimization recommendations. Use for page load times, performance reviews, UX optimization, or encountering LCP, FID, CLS issues, resource blocking, render delays.

secondsky/claude-skills
42
5804
#5804

web-performance-optimization

verified
web

Optimizes web application performance through code splitting, lazy loading, caching strategies, and Core Web Vitals monitoring. Use when improving page load times, implementing service workers, or reducing bundle sizes.

secondsky/claude-skills
42
5805
#5805

websocket-implementation

verified
api

Implements real-time WebSocket communication with connection management, room-based messaging, and horizontal scaling. Use when building chat systems, live notifications, collaborative tools, or real-time dashboards.

secondsky/claude-skills
42
5806
#5806

woocommerce-backend-dev

verified
woocommerce

Add or modify WooCommerce backend PHP code following project conventions. Use when creating new classes, methods, hooks, or modifying existing backend code in WooCommerce projects.

secondsky/claude-skills
42
5807
#5807

woocommerce-code-review

verified
woocommerce

Review WooCommerce code changes for coding standards compliance. Use when reviewing code locally, performing automated PR reviews, or checking code quality in WooCommerce projects.

secondsky/claude-skills
42
5808
#5808

woocommerce-copy-guidelines

verified
woocommerce

Guidelines for UI text and copy in WooCommerce. Use when writing user-facing text, labels, buttons, messages, or documentation in WooCommerce projects.

secondsky/claude-skills
42
5809
#5809

woocommerce-dev-cycle

verified
woocommerce

Run tests, linting, and quality checks for WooCommerce development. Use when running tests, fixing code style, or following the development workflow in WooCommerce projects.

secondsky/claude-skills
42
5810
#5810

wordpress-plugin-core

verified
cms

WordPress plugin development with hooks, security, REST API, custom post types. Use for plugin creation, $wpdb queries, Settings API, or encountering SQL injection, XSS, CSRF, nonce errors.

secondsky/claude-skills
42
5811
#5811

xss-prevention

verified
security

XSS attack prevention with input sanitization, output encoding, Content Security Policy. Use for user-generated content, rich text editors, web application security, or encountering stored XSS, reflected XSS, DOM manipulation, script injection errors.

secondsky/claude-skills
42
5812
#5812

zod

verified
tooling

TypeScript-first schema validation and type inference. Use for validating API requests/responses, form data, env vars, configs, defining type-safe schemas with runtime validation, transforming data, generating JSON Schema for OpenAPI/AI, or encountering missing validation errors, type inference issues, validation error handling problems. Zero dependencies (2kb gzipped).

secondsky/claude-skills
42
5813
#5813

zustand-state-management

verified
frontend

Zustand state management for React with TypeScript. Use for global state, Redux/Context API migration, localStorage persistence, slices pattern, devtools, Next.js SSR, or encountering hydration errors, TypeScript inference issues, persist middleware problems, infinite render loops.

secondsky/claude-skills
42
5814
#5814

mobile-first-design

verified
mobile

Designs responsive interfaces starting from mobile screens with progressive enhancement for larger devices. Use when building responsive websites, optimizing for mobile users, or implementing adaptive layouts.

secondsky/claude-skills
42
5815
#5815

mobile-app-testing

verified
mobile

Mobile app testing with unit tests, UI automation, performance testing. Use for test infrastructure, E2E tests, testing standards, or encountering test framework setup, device farms, flaky tests, platform-specific test errors.

secondsky/claude-skills
42
5816
#5816

cloudflare-r2

verified
cloudflare

Cloudflare R2 S3-compatible object storage. Use for buckets, uploads, CORS, presigned URLs, or encountering R2_ERROR, CORS failures, multipart issues.

secondsky/claude-skills
42
5817
#5817

cloudflare-nextjs

verified
cloudflare

Deploy Next.js to Cloudflare Workers via OpenNext adapter. Use for SSR, ISR, App/Pages Router, or encountering worker size limits, runtime compatibility, connection scoping errors.

secondsky/claude-skills
42
5818
#5818

ml-model-training

verified
ai

Train ML models with scikit-learn, PyTorch, TensorFlow. Use for classification/regression, neural networks, hyperparameter tuning, or encountering overfitting, underfitting, convergence issues.

secondsky/claude-skills
42
5819
#5819

api-gateway-configuration

verified
api

Configures API gateways for routing, authentication, rate limiting, and request transformation in microservice architectures. Use when setting up Kong, Nginx, AWS API Gateway, or Traefik for centralized API management.

secondsky/claude-skills
42
5820
#5820

mcp-management

verified
tooling

Manage MCP servers - discover, analyze, execute tools/prompts/resources. Use for MCP integrations, capability discovery, tool filtering, programmatic execution, or encountering context bloat, server configuration, tool execution errors.

secondsky/claude-skills
42
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