Frontend

HTML-first form patterns with CSS-only validation. Use when building accessible forms with the form-field custom element, output element for messages, and native HTML5 validation.

Automatically builds and tests code changes. Use whenever code is modified, tests fail, before creating pull requests, or when verifying code quality.

Select appropriate Segoe MDL2 Assets icons for WinUI Windows applications. Use when the user needs an icon for their WinUI app UI, asks for icon recommendations, needs a glyph for a button or control, or wants to find icons by visual appearance or use case. Provides Unicode points and icon names with visual descriptions and creative alternatives.

Build production-ready Next.js 16 + Supabase authentication and role-based access control systems with 4-tier user roles (admin, main_user, vip_user, user). Use this skill when implementing authentication, user management, role-based permissions, or RLS policies in Next.js projects.

This skill should be used when the user asks to "create a Next.js app", "build a page", "add routing", "implement server components", "add caching", "create API routes", "use server actions", "add metadata", "set up layouts", or discusses Next.js architecture, App Router, data fetching, or rendering strategies. Always use the latest Next.js version and modern patterns.

Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui)

Build modular CLI applications with Cobra framework. Use when structuring CLI commands, implementing modular command architecture, handling flags and arguments, or when user mentions Cobra, CLI modularity, command registration, or spf13/cobra.

Load when creating tutorials, explaining technical concepts, writing documentation,or any content that involves code, data, or technical procedures. Containsguidelines for clear, effective technical communication based on Google'stechnical writing principles.

Expert on building decentralized applications on Aptos with frontend integration, wallet connectivity (Petra, Martian, Pontem), TypeScript SDK, transaction submission, and wallet adapter patterns. Triggers on keywords wallet connect, petra, martian, pontem, typescript sdk, aptos sdk, dapp, frontend integration, wallet adapter, transaction, sign

Ensure WCAG 2.1 AA compliance in all frontend designs. Use this skill when building any user interface to guarantee visibility, contrast, keyboard navigation, and screen reader support.

Technical workflow for implementing accessible React user interfaces with shadcn/ui, Tailwind CSS, and TanStack Query. Includes 6-phase process with mandatory Style Guide compliance, Context7 best practices consultation, Chrome DevTools validation, and WCAG 2.1 AA accessibility standards. Use after Test Agent, Implementer, and Supabase agents complete their work.

Méta-skill orchestrateur pour agence Web - Compose et orchestre les skills métiers (project-management, direction-technique, lead-dev, web-dev-process, testing-process, frontend-developer, backend-developer, devops, etc.)

Build web components using Custom Elements v1 API with Declarative Shadow DOM, attribute-driven state, handleEvent pattern, and zero DOM selection. Use when creating custom elements, extending built-in HTML elements, or implementing component-based architecture. NO querySelector, NO innerHTML, NO external libraries - pure web platform APIs only.

Enables Mini-Agent to integrate directly with VS Code Chat API for seamless AI assistance

Skill for building Claude Code plugin commands.

Vitest unit testing patterns for TypeScript. Covers test structure, mocking, assertions, and coverage. Triggers on vitest, describe, it, expect, mock.

Enable Claude to orchestrate complex tasks by spawning and managing specialized sub-agents for parallel or sequential decomposition. Use when tasks have clear independent subtasks, require specialized approaches for different components, benefit from parallel processing, need fault isolation, or involve complex state management across multiple steps. Best for data pipelines, code analysis workflows, content creation pipelines, and multi-stage processing tasks.

Implement dynamic resolution scaling for React Three Fiber / Three.js by adjusting DPR based on measured FPS. Use when asked to add adaptive performance scaling, automatic DPR tuning, or a DynamicResScaler-style component in a R3F scene.

Folder structure and naming conventions for Angular projects. Use when creating new features, components, pages, services, or any file in the Angular project. Includes feature module structure with components/, pages/, services/, and models/ folders.

Technical leadership guidance for architecture decisions, team scaling, tech debt, and engineering strategy. Use PROACTIVELY for technology evaluation, engineering metrics, team structure, or strategic technical decisions.