Browse Skills

Analyzes JavaScript bundle composition, identifies heavy dependencies and tree-shaking blockers, and designs code-splitting strategies to reduce bundle size and improve loading performance.

Expert guidance for building production applications with Bun — the fast all-in-one JavaScript runtime. Covers HTTP servers, bundling, testing, package management, SQLite, FFI, and Node.js migration strategies.

Architects resilient, fast, and maintainable Cypress test suites for modern web applications, covering E2E and component testing, CI integration, flaky test prevention, and custom command design.

Expert guidance for building type-safe, performant data access layers with Prisma ORM. Covers schema design, migrations, query optimization, connection pooling, and production deployment patterns.

Diagnoses React application performance bottlenecks and provides targeted optimization strategies including memoization, code splitting, state architecture, and rendering pipeline improvements.

Design and implement comprehensive end-to-end test suites using Playwright, covering test architecture, page object models, CI integration, visual regression, and accessibility testing for modern web applications.

Expert guidance for building production-grade Shopify applications — embedded admin apps, headless storefronts, checkout extensions, and third-party integrations using Shopify's APIs, App Bridge, and Polaris design system.

Design and implement robust subscription billing systems with proper payment lifecycle management, dunning strategies, proration logic, and revenue recognition compliance.

Design and build robust event-driven architectures and stream processing systems — from event modeling and schema design to Kafka/Flink implementation, failure handling, and operational observability at scale.

Expert guidance for designing and building event-driven APIs and async workflow systems in Node.js/TypeScript. Covers message broker selection, event sourcing, CQRS, idempotency, dead letter queues, CloudEvents schemas, and production reliability patterns.

Design production-grade real-time chat and messaging systems with structured capacity estimation, fanout strategies, presence systems, and horizontal scaling patterns. Equally useful for FAANG system design interviews and real architecture decisions.

Build production-grade multilingual Nuxt 3 websites with proper i18n routing, SEO-optimized hreflang implementation, lazy-loaded translations, and RTL support.

Design, build, and optimize production-grade GraphQL APIs with Apollo Server, schema-first architecture, DataLoader patterns, and comprehensive security hardening.

Identifies code smells and applies systematic refactoring patterns from Martin Fowler's catalog. Guides safe refactoring with test coverage, legacy code strategies, and incremental improvement plans that preserve behavior while improving design.

Expert guidance for building Android apps with Jetpack Compose and Material Design 3, including dynamic theming, custom design systems, component customization, and accessibility-compliant UI implementation.

Expert guide for building production-grade social applications with React Native, covering real-time feeds, messaging, media handling, push notifications, and engagement-driven UX patterns.

Content-focused web development with Astro island architecture, content collections, hybrid rendering, and zero-JavaScript-by-default philosophy.

Architect and build production-grade multi-tenant Next.js applications with internationalization, role-based access control, and enterprise deployment patterns using the App Router.

Expert guidance for building production-grade SvelteKit applications with file-based routing, SSR/SSG, form actions, and optimized deployment across platforms.

Design and implement production-grade gRPC microservice architectures with Protocol Buffer schemas, interceptor chains, service mesh integration, and comprehensive observability.

Design, build, and deploy production-grade serverless functions on AWS Lambda, Vercel Functions, and Cloudflare Workers with optimized cold starts, security, and cost efficiency.

Design, review, and govern OpenAPI 3.x specifications for production APIs. Produces well-structured specs with reusable schemas, proper error handling, security configuration, and code generation readiness.

Architect and build high-performance content websites using Astro's islands architecture, content collections, and zero-JS-by-default philosophy for blogs, documentation portals, and marketing sites.

Design and implement micro-frontend architectures using React with Module Federation, Single-SPA, and governance patterns for autonomous team delivery.