Write unit and integration tests for Angular v21+ applications using Vitest or Jasmine with TestBed, component harnesses, and modern testing patterns. Use for testing components with signals,...

Create modern Angular standalone components following v20+ best practices. Use for building UI components with signal-based inputs/outputs, OnPush change detection, host bindings, content...

Create custom directives in Angular v20+ for DOM manipulation and behavior extension. Use for attribute directives that modify element behavior/appearance, structural directives for...

Implement Angular 18+ features: Signals, standalone components, @defer blocks, SSR, zoneless change detection, new control flow syntax, and Material 3 integration.

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Expert frontend development guidance covering React, Vue, Angular, TypeScript, state management, component architecture, performance optimization, accessibility, testing, and modern web APIs....

Multi-framework frontend development. Frameworks: React 18+ (Suspense, hooks, TanStack), Vue 3 (Composition API, Pinia, Nuxt), Svelte 5 (Runes, SvelteKit), Angular (Signals, standalone). Common:...

Conducts comprehensive frontend code reviews including React/Vue/Angular component analysis, TypeScript/JavaScript quality assessment, CSS/styling review, performance optimization, accessibility...

Tailwind CSS v4.1 best practices with WCAG 2.1 AA accessibility, theming, and dark mode support. Use when working with HTML, CSS, styling components, accessibility (a11y), WCAG compliance, color...

Angular HttpClient for API communication, interceptors, and error handling

Angular application deployment, CI/CD pipelines, and hosting strategies

Angular performance optimization, change detection strategies, and bundle optimization

Ionic development guidelines for building cross-platform mobile applications with Angular, Cordova, and Firebase integration.

Implement client-side routing using React Router, Vue Router, and Angular Router. Use when building multi-page applications with navigation and route protection.

Build reactive and template-driven forms, implement custom validators, create async validators, add cross-field validation, and generate dynamic forms for Angular applications.

Helps locate React/Vue/Angular components, UI elements, and frontend code. Auto-activates when users ask where components are defined, how to find UI code, or locate specific frontend features....

Implement TypeScript patterns, convert JavaScript to TypeScript, add type annotations, create generics, implement decorators, and enforce strict type safety in Angular projects.

Comprehensive frontend development specialist for building modern web applications with React, Vue, Angular, and modern tooling including state management, testing, and performance optimization

Build new Next.js applications or migrate existing frontends (React, Vue, Angular, vanilla JS, etc.) to Next.js + shadcn/ui with systematic analysis and conversion. Enforces shadcn design...

Create comprehensive TypeScript documentation using JSDoc, TypeDoc, and multi-layered documentation patterns for different audiences. Includes API documentation, architectural decision records...