Web & Frontend

mattakushi432 Skill

When to activate: shadcn/ui, Tailwind CSS, Radix UI, CVA, clsx, cn utility, component variants, Tailwind config

mattakushi432 Skill

When to activate: TanStack Router, React Router v6, file-based routing, route loaders, search params, type-safe navigation

sairam0424 Bundle

Create HTML-based video compositions, animated title cards, social overlays, captioned talking-head videos, audio-reactive visuals, and shader transitions using HyperFrames. HTML is the source of truth for video. Use when the user wants a rendered MP4/WebM from an HTML composition, wants to animate text/logos/charts over media, needs captions synced to audio, wants TTS narration, or wants to convert a website into a video.

sairam0424 Skill

Skill — Accessibility Testing

sairam0424 Skill

Skill — Accessibility Engineering

sairam0424 Skill

Generate UI design contract (UI-SPEC.md) for frontend phases

sairam0424 Skill

Retroactive 6-pillar visual audit of implemented frontend code

aeondave Bundle

Auth/lab ref: Build a dossier on a person from a single username: searches 2800+ sites, extracts profile data (name, bio, location, linked accounts), and generates HTML/PDF/CSV reports.

aeondave Bundle

Auth/lab ref: Web screenshotting and reporting tool that captures screenshots of web services and generates an HTML report.

aeondave Bundle

White-box auditing methodology for AI-generated ('vibe-coded') applications from Lovable, Bolt.new, v0, Cursor, Replit Agent, and Claude Code. Focuses on modern stack misconfigurations (Supabase, Firebase, Next.js, Vercel, Expo).

h3y6e Bundle

Adversarial code review of server-side TypeScript for adherence to the kamae principles (discriminated unions, branded types, Result error handling, boundary validation, PII protection). TRIGGER when: reviewing a pull request, audit, or quality check of TypeScript server-side code involving domain models, repositories, use cases, business logic, or boundary code. SKIP: frontend code review, infrastructure-as-code review, test-only review, code review unrelated to domain logic.

h3y6e Skill

Upgrades existing websites and apps to premium quality. Audits current design, identifies generic AI patterns, and applies high-end design standards without breaking functionality. Works with any CSS framework or vanilla CSS.

h3y6e Skill

This skill encodes Emil Kowalski's philosophy on UI polish, component design, animation decisions, and the invisible details that make software feel great.

h3y6e Skill

Pick the right library for a given frontend task from a curated, opinionated list — numbers, OTP inputs, charts, command menus, virtualization, drag and drop, toasts, state, styling, and more. Only runs when explicitly invoked; it does not trigger on its own.

h3y6e Bundle

Use for Vercel cost and performance optimization on deployed projects, especially Next.js, SvelteKit, Nuxt, and limited Astro apps. Collect Vercel metrics, usage, project config, and code scan results first; investigate only metric-backed candidates; produce ranked recommendations grounded in verified files and version-aware Vercel/framework docs. Trigger for Vercel bill reduction, slow or expensive routes, caching opportunities, Function Invocations, Build Minutes, Fast Data Transfer, Core Web Vitals, Bot Management, Fluid compute, or cost breakdown requests.

h3y6e Skill

Write usage guidelines for a specific, named component — covering when to use it, when not to, edge cases, and anti-patterns for that one component. This documents HOW to use a component you have already chosen, NOT how to choose between components. Trigger when someone says: write usage guidelines for [component], do's and don'ts for [component], how should [component] be used, usage rules, write the guidelines for [component], or anything about creating prescriptive guidance for a single named component. Do NOT trigger for choosing between components — use component-decision-tree for that. Do NOT trigger for documenting multi-component patterns — use pattern-documentation for that.

h3y6e Bundle

Apply VueUse composables where appropriate to build concise, maintainable Vue.js / Nuxt features.

h3y6e Bundle

MUST be used for Vue.js tasks. Strongly recommends Composition API with `<script setup>` and TypeScript as the standard approach. Covers Vue 3, SSR, Volar, vue-tsc. Load for any Vue, .vue files, Vue Router, Pinia, or Vite with Vue work. ALWAYS use Composition API unless the project explicitly requires Options API.

h3y6e Bundle

Functional domain modeling for server-side TypeScript with better-result and valibot — discriminated unions, pure state transitions, TaggedError-based Result handling, schema-validated boundaries, and PII protection. Use when writing TypeScript domain models, use cases, repositories, state transitions, error handling, boundary validation, or PII handling on the server side, or designing types for business logic. Skip for frontend components, build tooling, and code unrelated to domain logic.

h3y6e Skill

Check alignment between a specific design specification and its code implementation — a focused, single-component or single-screen comparison. Trigger when someone says: does this match the design, check implementation, design code alignment, what's different between the design and the build, spec check, implementation review, or anything about comparing a designed component or screen to its coded equivalent. Do NOT trigger for system-wide drift detection across multiple components or teams — use drift-detection for that.

h3y6e Bundle

React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.

h3y6e Bundle

Guide for implementing smooth, native-feeling animations using React's View Transition API (`<ViewTransition>` component, `addTransitionType`, and CSS view transition pseudo-elements). Use this skill whenever the user wants to add page transitions, animate route changes, create shared element animations, animate enter/exit of components, animate list reorder, implement directional (forward/back) navigation animations, or integrate view transitions in Next.js. Also use when the user mentions view transitions, `startViewTransition`, `ViewTransition`, transition types, or asks about animating between UI states in React without third-party animation libraries.

h3y6e Skill

Audit component APIs for consistency, breaking changes, TypeScript coverage, and contract compliance across a component library. Trigger when someone says: component prop review, verify component types are exported, component API audit, check our component interfaces, are our props consistent, API consistency check, prop naming review, breaking change detection, or anything about checking whether component APIs are structurally sound and consistent across the library.

h3y6e Skill

Build queryable decision trees that help agents and teams choose between components — structured YAML files mapping user intents to the correct component through a sequence of narrowing questions. This produces selection logic for choosing BETWEEN components, NOT usage guidelines for a single component. Trigger when someone says: component decision tree, which component should I use, help me choose between, selection guide, decision framework, modal vs dialog, intent-to-component mapping, or anything about creating structured logic for picking the right component from alternatives. Do NOT trigger for usage guidance on a specific component — use usage-guidelines for that.

h3y6e Skill

Builds production-quality, accessible, responsive user-facing UIs. Use when building or modifying interfaces and pages, creating components, implementing layouts, meeting WCAG accessibility requirements, managing state, or when the output needs to look and feel production-quality rather than AI-generated.

h3y6e Bundle

narrow React component prop types to match live code paths

h3y6e Skill

Guides stable API and interface design. Use when designing APIs, module boundaries, or any public interface. Use when creating REST or GraphQL endpoints, defining type contracts between modules, or establishing boundaries between frontend and backend.

h3y6e Skill

Elite mobile app image-generation skill for creating premium, app-native screen concepts and flows. Designed for iOS, Android, and cross-platform mobile products. Prioritizes clean hierarchy, comfortably readable text, strong multi-screen consistency, controlled color palettes, non-generic creative direction, textured surfaces, image-led composition, tasteful custom iconography, and clean phone mockup framing. By default, screens should be shown inside a subtle premium iPhone or similar phone mockup with a visible frame, while the main focus stays on the app content itself. This skill generates images only. It does not write code.

h3y6e Skill

Optimizes application performance across frontend, backend, queries, and databases. Use when performance requirements exist, when you suspect performance regressions, when Core Web Vitals or load times need improvement, when N+1 query patterns need fixing, or when profiling reveals bottlenecks.

h3y6e Bundle

Vue Router 4 patterns, navigation guards, route params, and route-component lifecycle interactions.

h3y6e Bundle

Use for Vue.js testing. Covers Vitest, Vue Test Utils, component testing, mocking, testing patterns, and Playwright for E2E testing.

ricneves-ai Skill

Construtor de templates de e-mail transacional. Cria sistemas completos de e-mail com React Email, integração com provedores, servidor de preview, suporte a i18n, modo escuro, otimização anti-spam e rastreamento de analytics. Produz código pronto para produção para Resend, Postmark, SendGrid ou AWS SES.

ricneves-ai Skill

Especialista em Integração Stripe para implementar integrações Stripe em nível de produção: assinaturas com trials e proration, pagamentos únicos, billing baseado em uso, checkout sessions, handlers de webhook idempotentes, portal do cliente e faturamento. Cobre padrões Next.js, Express e Django.

h3y6e Bundle

Vue 3 Composition API, script setup macros, reactivity system, and built-in components. Use when writing Vue SFCs, defineProps/defineEmits/defineModel, watchers, or using Transition/Teleport/Suspense/KeepAlive.

h3y6e Bundle

Nuxt full-stack Vue framework with SSR, auto-imports, and file-based routing. Use when working with Nuxt apps, server routes, useFetch, middleware, or hybrid rendering.

h3y6e Bundle

Kamae (構え) — robust server-side TypeScript design. Functional domain modeling with discriminated unions, pure state transitions, Result types, schema-validated boundaries, and PII protection. TRIGGER when: writing TypeScript domain models, use cases, repositories, state transitions, error handling, boundary validation, or PII handling on the server side; designing types for business logic; implementing entity/value-object semantics in TS. SKIP: frontend React/Vue components, browser code, build tooling, code generation scripts, pure infrastructure-as-code; code unrelated to domain logic.