Frontend

Performance optimization for Shopify stores including theme speed optimization, image optimization, JavaScript and CSS minification, lazy loading, CDN usage, caching strategies, Liquid template performance, and Core Web Vitals improvement. Use when optimizing store speed, reducing load times, improving Lighthouse scores, optimizing images, implementing lazy loading, reducing JavaScript bloat, or improving Core Web Vitals metrics (LCP, FID, CLS).

OpenAI Responses API for stateful agentic applications with reasoning preservation. Use for MCP integration, built-in tools, background processing, or migrating from Chat Completions.

OpenKBS AI agent development framework. Use when creating, modifying, or deploying AI agents with backend handlers (onRequest, onResponse, actions.js), frontend components (contentRender.js), or elastic services (functions, postgres, storage, pulse). Trigger keywords: openkbs, kb, agent, handler, contentRender, elastic, memory, scheduled task.

AI image and video generation using ComfyUI node-based workflow system with Stable Diffusion, FLUX, and other diffusion models via local or distributed GPU compute (Salad Cloud)

Guide for configuring Claude Code's status line with customizable display options and progress bars. This skill should be used when setting up or customizing the status line display.

MUI Base UI unstyled React components with Floating UI. Use for accessible components, Radix UI migration, render props API, or encountering positioning, popup, v1.0 beta issues.

Vercel AI SDK v5 React hooks (useChat, useCompletion, useObject) for AI chat interfaces. Use for React/Next.js AI apps or encountering parse stream errors, no response, streaming issues.

This skill should be used when the user asks about "Cloudflare Workers with Bun", "deploying Bun to Workers", "wrangler with Bun", "edge deployment", "Bun to Cloudflare", or building and deploying applications to Cloudflare Workers using Bun.

Creates comprehensive design systems with typography, colors, components, and documentation for consistent UI development. Use when establishing design standards, building component libraries, or ensuring cross-team consistency. Keywords: design-tokens, typography, spacing, color-palette, components, patterns, variables, dark-mode, theming, CSS-variables, accessibility, WCAG, responsive, grid-system, breakpoints, design-scale, semantic-tokens, component-library, style-guide, documentation, Figma, Storybook, brand-consistency, design-principles

Create distinctive, production-grade frontend interfaces with high design quality. Use when building or refining web components, pages, or apps (HTML/CSS/JS/React) with bold aesthetics, purposeful layouts, motion, and accessibility. Avoid generic AI-looking output.

Nuxt 4 core framework fundamentals: project setup, configuration, routing, SEO, error handling, and directory structure. Use when: creating new Nuxt 4 projects, configuring nuxt.config.ts, setting up routing and middleware, implementing SEO with useHead/useSeoMeta, handling errors with error.vue and NuxtErrorBoundary, or understanding Nuxt 4 directory structure. Keywords: Nuxt 4, nuxt.config.ts, file-based routing, pages directory, definePageMeta, useHead, useSeoMeta, error.vue, NuxtErrorBoundary, middleware, navigateTo, NuxtLink, app directory, runtime config

Pinia v3 Vue state management with defineStore, getters, actions. Use for Vue 3 stores, Nuxt SSR, Vuex migration, or encountering store composition, hydration, testing errors.

Production-tested setup for Tailwind CSS v4 with shadcn/ui, Vite, and React. Use when: initializing React projects with Tailwind v4, setting up shadcn/ui, implementing dark mode, debugging CSS variable issues, fixing theme switching, migrating from Tailwind v3, or encountering color/theming problems. Covers: @theme inline pattern, CSS variable architecture, dark mode with ThemeProvider, component composition, vite.config setup, common v4 gotchas, and production-tested patterns. Keywords: Tailwind v4, shadcn/ui, @tailwindcss/vite, @theme inline, dark mode, CSS variables, hsl() wrapper, components.json, React theming, theme switching, colors not working, variables broken, theme not applying, @plugin directive, typography plugin, forms plugin, prose class, @tailwindcss/typography, @tailwindcss/forms

Otimização de Performance - React Native. Use when optimizing performance or profiling code.

Reviews implemented code for security, quality, performance, and test coverage using specialized review agents. Use when task file is in review/ directory and requires comprehensive code review before approval. Launches test-coverage-analyzer, error-handling-reviewer, and security-reviewer in parallel.

Performance Optimization - React Native. Use when optimizing performance or profiling code.

Cypress end-to-end testing guidance for opal-frontend, including Cucumber feature layout, tags, step definitions, Actions or Flows, selectors, and accessibility specs. Use when adding or updating E2E scenarios.

Herramientas React - Configuración y Optimización. Use when working with tooling.

Scaffold new Next.js API endpoints with authentication, rate limiting, and tests. Use when creating new API routes, adding endpoints, or building API features.

[CLAUDE CODE ONLY] Leverage Codex CLI for AI peer review, second opinions on architecture and design decisions, cross-validation of implementations, security analysis, and alternative approach generation. Requires terminal access to execute Codex CLI commands. Use when making high-stakes decisions, reviewing complex architecture, or when explicitly requested for a second AI perspective. Must be explicitly invoked using skill syntax.