Implement comprehensive frontend testing using Jest, Vitest, React Testing Library, and Cypress. Use when building...
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Manage application state using Redux, MobX, Zustand, and Context API. Use when centralizing state for complex...
Implement client-side routing using React Router, Vue Router, and Angular Router. Use when building multi-page...
Implement WCAG compliance using semantic HTML, ARIA, keyboard navigation, and screen reader support. Use when...
Implement form validation using React Hook Form, Formik, Vee-Validate, and custom validators. Use when building...
Build beautiful cross-platform mobile apps with Flutter and Dart. Covers widgets, state management with...
Develop lightweight Flask APIs with routing, blueprints, database integration, authentication, and request/response...
Implement secure file upload handling with validation, virus scanning, storage management, and serving files...
Implement feature flags (toggles) for controlled feature rollouts, A/B testing, canary deployments, and kill...
Create and transform features using encoding, scaling, polynomial features, and domain-specific transformations for...
Build high-performance FastAPI applications with async routes, validation, dependency injection, security, and...
Discover patterns, distributions, and relationships in data through visualization, summary statistics, and...
Implement event sourcing and CQRS patterns using event stores, aggregates, and projections. Use when building audit...
Implement error tracking with Sentry for automatic exception monitoring, release tracking, and performance issues....
Integrate email services with backends using SMTP, third-party providers, templates, and asynchronous sending. Use...
Build end-to-end automated tests that simulate real user interactions across the full application stack. Use for E2E...
Set up documentation websites using Docusaurus, MkDocs, VitePress, GitBook, or static site generators. Use when...
Create optimized Docker containers with multi-stage builds, security best practices, and minimal image sizes. Use...
Manage DNS records, routing policies, and failover configurations for high availability and disaster recovery.
Develop production-grade Django applications with models, views, ORM queries, authentication, and admin interfaces....
Implement distributed tracing with Jaeger and Zipkin for tracking requests across microservices. Use when debugging...
Execute comprehensive disaster recovery tests, validate recovery procedures, and document lessons learned from DR exercises.
Reduce feature dimensionality using PCA, t-SNE, and feature selection for feature reduction, visualization, and...
Create comprehensive developer onboarding documentation including setup guides, README files, contributing...