Frontend

This skill should be used when the user asks to "create a skill", "add a new skill", "write a skill", "make a skill", "build a skill for Claude", or mentions creating Claude Code skills, skill development, or SKILL.md files. Provides guidance for creating well-structured Claude Code skills with proper triggers and progressive disclosure.

Professional CV and resume builder transforming career narratives into ATS-optimized, multi-format resumes. Integrates with career-biographer for data and competitive-cartographer for positioning. Generates PDF, DOCX, LaTeX, JSON Resume, HTML, and Markdown. Activate on 'resume', 'CV', 'ATS optimization', 'job application'. NOT for cover letters, portfolio websites (use web-design-expert), LinkedIn optimization, or interview preparation.

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

Create new workflow nodes for the Workscript engine or refactor existing nodes. Generate complete, production-ready node implementations following the single-edge return pattern. Use when creating new nodes, developing custom integrations, building data manipulation nodes, refactoring existing nodes, or implementing workflow capabilities.

Develops intuition for what makes research "good" versus "incremental." Use when asked about research taste, how to identify good research, what makes a paper impactful, how to develop research intuition, or how to pick important problems. Analyzes patterns in highly-cited work and what top researchers do differently.

Creates jaw-dropping, production-ready frontend interfaces AND delivers perfectly matched real photos (Unsplash/Pexels direct links) OR flawless custom image-generation prompts for hero images, backgrounds, and illustrations. Zero AI slop, zero fake URLs.

Inlang Paraglide を使用した国際化（i18n）対応を支援します。翻訳メッセージの追加、reactiveMessage の使用、言語切り替え実装、翻訳のテスト、パラメータ付きメッセージなどの国際化関連タスクに使用します。

React/TypeScript development guidelines. Suspense, lazy loading, useSuspenseQuery, features directory, MUI v7, TanStack Router, performance optimization. USE WHEN creating components, pages, features, data fetching, styling, routing, or frontend work.

Master system design principles for building scalable, reliable, and maintainable systems. Use when designing large-scale applications, planning architecture, or preparing for system design interviews.

Dual-AI code validation using both Claude and Google Gemini to catch 20% more issues. Validates React Native screens for security vulnerabilities, performance anti-patterns, accessibility gaps, and best practices. Use when user says "validate with Gemini", "cross-validate", "AI review", or before deploying code to production.

Tailwind CSS component library providing semantic class names for 50+ components with built-in themes, dark mode, and customization for rapid UI development.

Generate new Node.js CLI tool projects using TypeScript with ESM modules, tsc for building, tsx for development, Biome for linting/formatting, and Node's built-in test runner. Use this skill when the user requests to create a new Node TypeScript CLI project or CLI tool.

python-telegram-bot library for building Telegram bots. Use for handlers, callbacks, inline keyboards, conversations, and bot commands.

Create interactive analytics dashboards with React components from drizzle-cube/client. Use when building dashboards, configuring portlets, setting up grid layouts, or creating analytics UIs with drizzle-cube React components.

Use this skill when writing Ruby code following the RuboCop Community Ruby Style Guide. Provides comprehensive guidance on idiomatic Ruby patterns, method design, class structure, collections, strings, exceptions, and testing. Covers Sandi Metz rules, duck typing, metaprogramming guidelines, and RuboCop enforcement. Appropriate for any task involving .rb files, Ruby code reviews, refactoring, Rails development, or implementing Ruby best practices.

Teaches migration from forwardRef to ref-as-prop pattern in React 19. Use when seeing forwardRef usage, upgrading React components, or when refs are mentioned. forwardRef is deprecated in React 19.

Wrap third-party libraries for testability and replaceability. Use when integrating external APIs, creating testable code, or building swappable implementations.

Comprehensive Vue 3 frontend development skill. Use when developing Vue 3 applications, components, or composables. Covers: (1) Creating new Vue 3 projects and components, (2) Vue 2 to Vue 3 migration, (3) Code review and optimization, (4) Composition API implementation, (5) Best practices and common patterns, (6) TypeScript integration, (7) State management with Pinia, (8) Performance optimization. Includes component templates, composable examples, migration guides, and best practices documentation.

Troubleshoots infrastructure and application configuration items in Mission Control by diagnosing health issues, analyzing recent changes, and investigating resource relationships. Use when users ask about unhealthy or failing resources, mention specific config items by name or ID, inquire about Kubernetes pods/deployments/services, AWS EC2 instances/volumes, Azure VMs, or other infrastructure components. Also use when investigating why a resource is down, stopped, degraded, or showing errors, or when analyzing what changed that caused an issue.

Write meaningful code comments that explain WHY rather than WHAT, focusing on business logic, non-obvious solutions, workarounds, and complex algorithms while keeping code self-documenting. Use this skill when adding comments to explain rationale, documenting complex business logic, explaining workarounds or temporary solutions, describing performance optimizations, writing function documentation (JSDoc, docstrings, XML docs), or reviewing code for appropriate commenting. Apply when working on any code file that contains logic requiring explanation, public API functions, complex algorithms, security-critical code, or architectural decisions. This skill ensures comments explain rationale not implementation (WHY not WHAT), self-documenting code through clear naming (refactor unclear code instead of commenting), concise and evergreen comments (no who/when dated comments - Git tracks this), links to external resources for context, proper function documentation format (JSDoc for TS/JS, docstrings for Python, XML d