> browse/registry

> nextjs-optimization

Optimize images, fonts, scripts, and metadata for Next.js performance and Core Web Vitals. Use when configuring next/image for LCP, next/font for zero layout shift, next/script loading strategies, or generateMetadata for SEO. (triggers: **/layout.tsx, **/page.tsx, next/image, next/font, metadata, generateMetadata)

> zustand-store-ts

Create Zustand stores with TypeScript, subscribeWithSelector middleware, and proper state/action separation. Use when building React state management, creating global stores, or implementing reactive state patterns with Zustand.

> angular-signals

Implement signal-based reactive state management in Angular v20+. Use for creating reactive state with signal(), derived state with computed(), dependent state with linkedSignal(), and side effects with effect(). Triggers on state management questions, converting from BehaviorSubject/Observable patterns to signals, or implementing reactive data flows.

> angular-forms

Angular forms: Signal Forms (experimental) and Reactive Forms. Trigger: When working with forms, validation, or form state in Angular.

> react-security

Prevent XSS, secure auth flows, and harden React client-side applications. Use when preventing XSS, securing auth flows, or auditing third-party dependencies in React. (triggers: **/*.tsx, **/*.jsx, dangerouslySetInnerHTML, token, auth, xss)

> react-testing

Test React components with RTL and Jest/Vitest. Use when writing React component tests with React Testing Library, Jest, or Vitest. (triggers: **/*.test.tsx, **/*.spec.tsx, render, screen, userEvent, expect)

> flutter-getx-state-management

Manage reactive state with GetX controllers and observables in Flutter. Use when managing reactive state with GetX controllers or observables in Flutter. (triggers: **_controller.dart, **/bindings/*.dart, GetxController, Obx, GetBuilder, .obs, Get.put, Get.find, Get.lazyPut)

> react-flow-node-ts

Create React Flow node components with TypeScript types, handles, and Zustand integration. Use when building custom nodes for React Flow canvas, creating visual workflow editors, or implementing node-based UI components.

Full-stack React framework with nested routing, data loading, form actions, and progressive enhancement.

> frontend-ui-dark-ts

Build dark-themed React applications using Tailwind CSS with custom theming, glassmorphism effects, and Framer Motion animations. Use when creating dashboards, admin panels, or data-rich interfaces with a refined dark aesthetic.

> nextjs-app-router-patterns

Master Next.js 14+ App Router with Server Components, streaming, parallel routes, and advanced data fetching. Use when building Next.js applications, implementing SSR/SSG, or optimizing React Server Components.

> Google Cloud Agent SDK Master

Automatic activation for ALL Google Cloud Agent Development Kit (ADK) and Agent Starter Pack operations - multi-agent systems, containerized deployment, RAG agents, and production orchestration. **TRIGGER PHRASES:** - "adk", "agent development kit", "agent starter pack", "multi-agent", "build agent" - "cloud run agent", "gke deployment", "agent engine", "containerized agent" - "rag agent", "react agent", "agent orchestration", "agent templates" **AUTO-INVOKES FOR:** - Agent creation and scaffo

> flutter-riverpod-state-management

Implement reactive state management using Riverpod 2.0 with code generation in Flutter. Use when defining @riverpod providers, building AsyncNotifiers, overriding providers in tests, or enforcing immutable state with Freezed models. (triggers: **_provider.dart, **_notifier.dart, riverpod, ProviderScope, ConsumerWidget, Notifier, AsyncValue, ref.watch, @riverpod)

> code-exemplars-blueprint-generator

Technology-agnostic prompt generator that creates customizable AI prompts for scanning codebases and identifying high-quality code exemplars. Supports multiple programming languages (.NET, Java, JavaScript, TypeScript, React, Angular, Python) with configurable analysis depth, categorization methods, and documentation formats to establish coding standards and maintain consistency across development teams.

> ios-state-management

Manage reactive state with Combine, Observation framework, and UDF patterns. Use when implementing state management with Combine, @Observable, or reactive patterns in iOS. (triggers: **/*.swift, Observable, @Published, PassthroughSubject, @Observable, @Namespace)

> nextjs-state-management

Apply best practices for managing URL, server, and client state in Next.js applications. Use when choosing between URL params, SWR/TanStack Query, Zustand, or Context for state, or when fixing hydration mismatches from localStorage. (triggers: **/hooks/*.ts, **/store.ts, **/components/*.tsx, useState, useContext, zustand, redux)

> vue-pinia-best-practices

Pinia stores, state management patterns, store setup, and reactivity with stores.

> react-modernization

Upgrade React applications to latest versions, migrate from class components to hooks, and adopt concurrent features. Use when modernizing React codebases, migrating to React Hooks, or upgrading to latest React versions.

> create-adaptable-composable

Create a library-grade Vue composable that accepts maybe-reactive inputs (MaybeRef / MaybeRefOrGetter) so callers can pass a plain value, ref, or getter. Normalize inputs with toValue()/toRef() inside reactive effects (watch/watchEffect) to keep behavior predictable and reactive. Use this skill when user asks for creating adaptable or reusable composables.

> nextjs-rendering

Select and implement SSG, SSR, ISR, Streaming, or Partial Prerendering strategies in Next.js App Router. Use when choosing a rendering mode for a page, configuring generateStaticParams, or enabling PPR. (triggers: **/page.tsx, **/layout.tsx, generateStaticParams, dynamic, dynamicParams, PPR, streaming)