Frontend

Build 3D visualizations using Three.js and React Three Fiber. Use when implementing 3D components, debugging rendering issues, optimizing performance, or creating interactive visualization features.

Follow consistent project structure, version control practices, environment configuration, code review processes, and development conventions across the entire application. Use this skill when organizing project files and directories, when writing commit messages or creating pull requests, when managing environment variables and configuration, when participating in code reviews, when defining testing requirements, when using feature flags, when maintaining changelogs, when documenting setup instructions, or when establishing consistent development practices across the team.

技術設計書（design.md）を作成・編集します。アーキテクチャ設計、コンポーネント定義、API設計、データベーススキーマの文書化が必要な場合に使用してください。requirements.mdが存在する場合は整合性を確認します。

Generate forms using base-joy Connected components and react-hook-form. Use when creating a form, adding form fields, connecting inputs to react-hook-form, implementing validation, or building data entry interfaces.

Analyze performance-related HTML issues on web pages. Use when users ask to check page performance, audit resource loading, verify lazy loading, check preload hints, or analyze render-blocking resources. Detects missing optimizations, large resources, render-blocking issues, and Core Web Vitals problems.

Comprehensive PR review for oc (OpenShift CLI). Runs build, tests, and linting, then applies Go style improvements and provides detailed code review feedback.

Manage GitHub Wiki, issues, and repository operations with memory-bank integration, business model validation, and SSH authentication. Automatically loads business context, applies documented lessons learned, and prevents common errors through validation automation.

Creates, customizes, and troubleshoots Quarto Reveal.js presentations with proper SCSS theming, layout patterns, and extensions. Use when authoring .qmd slides or styling with SCSS.

Use when creating UI components in React - functional components, hooks, custom hooks, or component composition patterns.NOT when backend logic, API routes, or non-React frameworks are involved.Triggers: "create component", "build widget", "KPI card", "form", "modal", "custom hook", "useContext", "useState", "useEffect".

Client-side state patterns for Web Components. Use when building interactive applications requiring state synchronization, reactive updates, or undo/redo functionality.

Select and apply numerical differentiation schemes for PDE/ODE discretization. Use when choosing finite difference/volume/spectral schemes, building stencils, handling boundaries, or estimating truncation error and dispersion.

Frontend development guidelines for Next.js + React 19 + shadcn/ui applications. Modern patterns including App Router, Server Components, Client Components, Server Actions, shadcn/ui with Tailwind CSS, React Hook Form, lazy loading, Suspense boundaries, Supabase client integration, performance optimization, and TypeScript best practices. Use when creating pages, components, forms, styling, data fetching, new features or working with Next.js/React code.

Translates SRT subtitle files using LLM APIs (OpenRouter/Llama). Use when user wants to translate subtitles, SRT files, or needs batch subtitle translation for movies/series. Handles HTML tags, batch processing, retries, and cost estimation.

Build features when user wants to implement PRDs, write code for specs, or develop functionality. Works incrementally substory-by-substory with automatic testing and code review. Automatically loads PRD context to maintain consistency. Also writes standalone tests for any file.

Create and maintain high-quality Claude Code Skills through interactive discovery, web research, and comprehensive description writing standards. Use when building new Skills, researching latest best practices, updating existing Skills, writing skill descriptions with proper trigger keywords, or generating Skill packages backed by official documentation and real-world examples.

Validates forms using React Hook Form and Zod. Use when creating forms with validation, handling form state, showing error messages, or implementing multi-step forms. Includes schema patterns and Controller usage.

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications using Astro and Tailwind CSS. Generates creative, polished code that avoids generic AI aesthetics.

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI). Generates creative, polished code and UI design that avoids generic AI aesthetics.

Generate esbuild configuration files for ultra-fast JavaScript/TypeScript bundling. Triggers on "create esbuild config", "generate esbuild configuration", "esbuild setup", "fast bundler config".

Create and manage N8N workflows in Orchestrator AI. Use Helper LLM pattern for all LLM calls, configure webhook status tracking, handle API responses. CRITICAL: All workflows using Helper LLM must include required parameters (taskId, conversationId, userId, statusWebhook, stepName, sequence, totalSteps). Status webhook URL must read from environment variables.