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Comprehensive testing guidance for Vue.js projects covering unit, component, and end-to-end testing. \n \n Addresses 11 common testing challenges including async handling, composable testing, Pinia store setup, Suspense components, and Teleport queries \n Recommends Vitest for unit and component testing, Playwright for end-to-end testing, and Vue Test Utils for component interaction \n Covers testing patterns like black-box component approaches, snapshot test pitfalls, and browser vs. Node.js ru

Comprehensive SwiftUI code review against modern APIs, accessibility, and performance standards. \n \n Validates code across nine dimensions: deprecated APIs, view optimization, data flow, navigation, design compliance, accessibility (Dynamic Type, VoiceOver, Reduce Motion), performance, Swift concurrency, and code hygiene \n References built-in guides for each review category, enabling targeted partial reviews when needed \n Targets iOS 26+ and Swift 6.2 with modern concurrency patterns; priori

Comprehensive Power BI data model design review framework for evaluating architecture, relationships, and optimization. \n \n Covers schema architecture, relationship design, and storage mode strategy with detailed assessment checklists across fact tables, dimensions, cardinality, and filter directions \n Includes three-phase review process: model architecture analysis, performance and scalability evaluation, and maintainability/governance assessment \n Provides specialized review types for pre-

React client for connecting to Rivet Actors with hooks and realtime state management. \n \n Create typed hooks with createRivetKit() and connect to actor instances using useActor() with keys and optional parameters \n Subscribe to actor events with useEvent() and monitor connection lifecycle through connStatus and error states \n Use createClient() for stateless one-off calls, actor discovery methods (get, getOrCreate, create, getForId), and low-level HTTP/WebSocket access \n Supports compound a

REST and GraphQL API design with OpenAPI documentation, versioning strategies, and best practices. \n \n Covers REST fundamentals including resource naming, HTTP methods, status codes, request/response formatting, and error handling patterns \n Includes pagination, filtering, sorting, and field selection query parameters with standardized response structures \n Supports multiple authentication approaches: JWT, OAuth 2.0, API keys, and session-based methods \n Provides URL and header-based versio

packages/design-tokens/tokens.css:

To access Anthropic's official brand identity and style resources, use this skill.

React/Next.js chat UI components for building custom messaging interfaces and AI assistant conversations. \n \n Includes four core components: ChatContainer for layout, ChatMessage for user/assistant/system messages, ChatInput for message submission, and TypingIndicator for loading states \n Supports role-based message variants (user, assistant, system) with automatic alignment and styling \n Built on Tailwind CSS and shadcn/ui design tokens with customizable className props \n Installable via s

Validated Flutter forms with field-level error handling and submission workflows. \n \n Requires StatefulWidget hosting with a persistent GlobalKey<FormState> to manage form state and validation across rebuilds \n Use TextFormField widgets with validator() callbacks that return error strings on failure or null on success \n Call _formKey.currentState!.validate() on submit to trigger all validators and automatically display error messages below fields \n Includes complete code example demons