Skill UI

Build and deploy the same feature consistently across web, iOS, Android, and desktop using API-first architecture, shared design systems, and parallel implementation strategies to achieve cross-platform feature parity.

Master Next.js App Router development with guidelines on Server Components, data fetching strategies, routing patterns, and performance optimization. Learn to structure projects, handle API routes, and implement caching effectively for scalable web applications.

This guide provides expert patterns for implementing secure, full-stack authentication in Next.js using Supabase. It covers essential architectural components, including setting up separate browser and server clients, utilizing middleware for route protection and session refreshing, handling OAuth callbacks, and implementing auth operations safely via Server Actions and Server Components. Essential knowledge for building secure, modern web applications.

This skill provides comprehensive guidance for building scalable, maintainable, and production-ready backend applications using Node.js. It covers modern architectural patterns, best practices, and implementation details for REST APIs, GraphQL servers, microservices, authentication, real-time WebSockets, and complex database integrations (SQL/NoSQL).

API-first control plane for reply-aware cold outbound email workflows, managing inboxes, contacts, templates, sequences, approvals, pacing, webhooks, and delivery metrics for AI agents.

This skill provides a comprehensive command reference for penetration testing tools. It covers network scanning with Nmap, exploitation via Metasploit, password cracking, and web application testing. Users can quickly lookup commands for security assessments, vulnerability identification, and payload generation. It includes examples for host discovery, port scanning, service detection, and common exploit usage.

Embed Photopea in web apps via photopea.js to control image editing, file I/O, scripting, exporting, layers, text, and filters through a Photoshop-compatible API.

Expert patterns for integrating Plaid API, covering Link token flows, transaction synchronization, identity verification, ACH authentication, balance checks, webhook management, and compliance best practices for financial technology applications.

This comprehensive guide covers the principles and implementation steps for building Progressive Web Apps (PWAs). Learn to integrate essential components like Web App Manifests and Service Workers to ensure your web application offers a reliable, fast, and truly offline-capable experience, mimicking the feel of a native mobile app. Ideal for enhancing web resilience and installability.

A comprehensive optimization guide maintained by Vercel, covering 45 rules for React and Next.js. Use this resource when building new components, implementing complex data fetching (client or server-side), refactoring code, or systematically improving bundle size and overall load times for high-performance web applications.

This comprehensive workflow guides the development of modern, scalable full-stack applications using Next.js 14+, React, and TypeScript. It covers all phases, from project setup and component architecture to advanced data fetching (Server Components, React Query), styling with Tailwind CSS, robust testing (E2E via Playwright), and deployment optimization. Ideal for building complex, production-grade web interfaces.

A comprehensive style guide and implementation toolkit for achieving authentic vintage aesthetics, inspired by 60s-80s retro design. It covers core principles like warm, muted color palettes, subtle noise textures, and classic typography pairings. Provides detailed code examples for Web (CSS), iOS (SwiftUI), and Android (Flutter) to recreate the analog, nostalgic feel in modern applications.