Skill directory
Agent skills
Focused instruction packs that teach a coding agent one job well. Browse the catalog and use any of them inside a RiverX project.
18,175Skills
1,902Publishers
249Official
Idempotency Handlingsecondsky/claude-skillsIdempotent API operations with idempotency keys, Redis caching, DB constraints. Use for payment systems, webhook retries, safe retries, or encountering duplicate processing, race conditions, key expiry errors.01Image Optimizationsecondsky/claude-skillsOptimizes images for web performance using modern formats, responsive techniques, and lazy loading strategies. Use when improving page load times, implementing responsive images, or preparing assets for production deployment.01Inspira UIsecondsky/claude-skills120+ Vue/Nuxt animated components with TailwindCSS v4, motion-v, GSAP, Three.js. Use for hero sections, 3D effects, interactive backgrounds, or encountering setup, CSS variables, motion-v integration errors.07Interaction Designsecondsky/claude-skillsCreates intuitive user experiences through feedback patterns, microinteractions, and accessible interaction design. Use when designing loading states, error handling UX, animation guidelines, or touch interactions.01Internationalization I18nsecondsky/claude-skillsImplements multi-language support using i18next, gettext, or Intl API with translation workflows and RTL support. Use when building multilingual applications, handling date/currency formatting, or supporting right-to-left languages.02Kpi Dashboard Designsecondsky/claude-skillsDesigns effective KPI dashboards with proper metric selection, visual hierarchy, and data visualization best practices. Use when building executive dashboards, creating analytics views, or presenting business metrics.01ML Model Trainingsecondsky/claude-skillsTrain ML models with scikit-learn, PyTorch, TensorFlow. Use for classification/regression, neural networks, hyperparameter tuning, or encountering overfitting, underfitting, convergence issues.03Mobile App Debuggingsecondsky/claude-skillsMobile app debugging for iOS, Android, cross-platform frameworks. Use for crashes, memory leaks, performance issues, network problems, or encountering Xcode instruments, Android Profiler, React Native debugger, native bridge errors.01Mobile App Testingsecondsky/claude-skillsMobile 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.01Mobile First Designsecondsky/claude-skillsDesigns 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.01Mobile Offline Supportsecondsky/claude-skillsOffline-first mobile apps with local storage, sync queues, conflict resolution. Use for offline functionality, data sync, connectivity handling, or encountering sync conflicts, queue management, storage limits, network transition errors.02Motionsecondsky/claude-skills>-014Mutation Testingsecondsky/claude-skillsValidate test effectiveness with mutation testing using Stryker (TypeScript/JavaScript with Vitest or bun test via @hughescr/stryker-bun-runner) and mutmut (Python). Find weak tests that pass despite code mutations. Use to improve test quality.01Nano Banana Promptssecondsky/claude-skillsGenerate optimized prompts for Gemini 2.5 Flash Image (Nano Banana). Use for image generation, crafting photo prompts, art styles, or multi-turn editing workflows with best practices.02Nuxt Productionsecondsky/claude-skills| Nuxt 4 production optimization: hydration, performance, testing with Vitest, deployment to Cloudflare/Vercel/Netlify, and v4 migration. Use when: debugging hydration mismatches, optimizing performance and Core Web Vitals, writing tests with Vitest, deploying to Cloudflare Pages/Workers/Vercel/Netlify, or migrating from Nuxt 3 to Nuxt 4.07Nuxt Serversecondsky/claude-skills| Nuxt 4 server-side development with Nitro: API routes, server middleware, database integration, and backend patterns. Use when: creating server API routes, implementing server middleware, integrating databases (D1, PostgreSQL, Drizzle), handling file uploads, implementing WebSockets, or building backend logic with Nitro.03Nuxt UI V4secondsky/claude-skillsNuxt UI v4 component library for building Nuxt v4 applications. 125+ accessible components with Tailwind v4, Reka UI, dark mode, theming. Use for dashboards, forms, overlays, editors, page layouts, pricing pages, or encountering component, theming, or TypeScript errors.068Oauth Implementationsecondsky/claude-skillsOAuth 2.0 and OpenID Connect authentication with secure flows. Use for third-party integrations, SSO systems, token-based API access, or encountering authorization code flow, PKCE, token refresh, scope management errors.02Payment Gateway Integrationsecondsky/claude-skillsIntegrates payment processing with Stripe, PayPal, or Square including subscriptions, webhooks, and PCI compliance. Use when implementing checkout flows, recurring billing, or handling refunds and disputes.02Playwrightsecondsky/claude-skillsBrowser automation and E2E testing with Playwright. Auto-detects dev servers, writes clean test scripts. Test pages, fill forms, take screenshots, check responsive design, validate UX, test login flows, check links, automate any browser task. Use for cross-browser testing, visual regression, API testing, component testing in TypeScript/JavaScript and Python projects.08Progressive Web Appsecondsky/claude-skillsProgressive Web Apps with service workers, web manifest, offline support, installation prompts. Use for installable web apps, offline functionality, push notifications, or encountering service worker registration, cache strategy, manifest configuration errors.01Push Notification Setupsecondsky/claude-skillsImplements push notifications across iOS, Android, and web using Firebase Cloud Messaging and native services. Use when adding notification capabilities, handling background messages, or setting up notification channels.01React Composition Patternssecondsky/claude-skillsReact composition patterns that scale. Use when refactoring components with boolean prop proliferation, building flexible component libraries, or designing reusable APIs. Triggers on tasks involving compound components, render props, context providers, or component architecture.012React Native Skillssecondsky/claude-skillsReact Native and Expo best practices for building performant mobile apps. Use when building React Native components, optimizing list performance, implementing animations, or working with native modules. Triggers on tasks involving React Native, Expo, mobile performance, or native platform APIs.042Recommendation Enginesecondsky/claude-skillsBuild recommendation systems with collaborative filtering, matrix factorization, hybrid approaches. Use for product recommendations, personalization, or encountering cold start, sparsity, quality evaluation issues.05Recommendation Systemsecondsky/claude-skillsDeploy production recommendation systems with feature stores, caching, A/B testing. Use for personalization APIs, low latency serving, or encountering cache invalidation, experiment tracking, quality monitoring issues.05Responsive Web Designsecondsky/claude-skillsBuilds adaptive web interfaces using Flexbox, CSS Grid, and media queries with a mobile-first approach. Use when creating multi-device layouts, implementing flexible UI systems, or ensuring cross-browser compatibility.01REST API Designsecondsky/claude-skillsDesigns RESTful APIs with proper resource naming, HTTP methods, status codes, and response formats. Use when building new APIs, establishing API conventions, or designing developer-friendly interfaces.01Root Cause Tracingsecondsky/claude-skillsSystematically trace bugs backward through call stack to find original trigger. Use when errors occur deep in execution and you need to trace back to find the original trigger.01Sap Abapsecondsky/sap-skills|032Sap Abap Cdssecondsky/sap-skillsComprehensive SAP ABAP CDS (Core Data Services) reference for data modeling, view development, and semantic enrichment. Use when creating CDS views or view entities, defining data models with annotations, working with associations and cardinality, implementing input parameters, using built-in functions, writing CASE expressions, implementing access control with DCL, handling CURR/QUAN data types, troubleshooting CDS errors, querying CDS views from ABAP, or displaying data with SALV IDA. Covers ABAP 7.4+ through ABAP Cloud.012Sap AI Coresecondsky/sap-skills|014Sap API Stylesecondsky/sap-skills|016Sap Btp Best Practicessecondsky/sap-skills|011Sap Btp Build Work Zone Advancedsecondsky/sap-skills|020Sap Btp Business Application Studiosecondsky/sap-skills|012Sap Btp Ciassecondsky/sap-skills|012Sap Btp Cloud Identity Servicessecondsky/sap-skills|09Sap Btp Cloud Loggingsecondsky/sap-skills|010Sap Btp Cloud Platformsecondsky/sap-skillsComprehensive SAP Business Technology Platform (BTP) reference for cloud development, deployment, and operations. Use when setting up BTP accounts, working with Cloud Foundry environment, deploying to Kyma (Kubernetes, serverless), developing in ABAP environment (RAP, CDS), managing entitlements and quotas, configuring identity providers (XSUAA), using btp CLI or CF CLI, deploying multi-target applications (MTA), setting up connectivity (destinations, Cloud Connector), implementing CI/CD pipelines, extending SAP solutions, or troubleshooting BTP services. Covers all three runtime environments.016Sap Btp Cloud Transport Managementsecondsky/sap-skills|011Sap Btp Connectivitysecondsky/sap-skillsSAP BTP Connectivity skill covering Destination Service, Connectivity Service, Cloud Connector, Connectivity Proxy, and Transparent Proxy for Kubernetes. Use when configuring destinations (HTTP, RFC, LDAP, MAIL, TCP), setting up cloud-to-on-premise connectivity, implementing OAuth and principal propagation, deploying connectivity proxies in Kubernetes/Kyma, troubleshooting connectivity errors (405, 407, 503), or configuring multitenancy.021Sap Btp Developer Guidesecondsky/sap-skills|025Sap Btp Integration Suitesecondsky/sap-skillsEnterprise integration solutions using SAP Integration Suite on BTP. Covers Cloud Integration (iFlows), API Management, Event Mesh, Edge Integration Cell, Integration Advisor, Trading Partner Management, and Migration Assessment. Use for building integration flows, managing API proxies, event-driven architectures, B2B/EDI integrations, hybrid deployments, adapter configuration, Groovy/JavaScript message processing, and troubleshooting.026Sap Btp Intelligent Situation Automationsecondsky/sap-skills|09Sap Btp Job Schedulingsecondsky/sap-skills|013Sap Btp Master Data Integrationsecondsky/sap-skills|012Sap Btp Service Managersecondsky/sap-skills|015
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