Convert local documents to Markdown using Microsoft's markitdown CLI. Best for: PDF, Word, Excel, PowerPoint, images (OCR), audio. Can fetch URLs but Jina is faster for web. Triggers on: convert...
Complete QA, playtesting, and code quality team for game development. Use when evaluating player experience, fun factor, game feel, code quality, test coverage, refactoring, performance testing,...
Application security testing coordinator for common vulnerability patterns including XSS, injection flaws, and client-side security issues. Orchestrates specialized testing agents to identify and...
フロントエンド（再レンダリング削減、メモ化、lazy loading）とバックエンド（N+1修正、インデックス、キャッシュ、非同期処理）両面のパフォーマンス改善。速度向上、最適化が必要な時に使用。
ホバー効果、ローディング状態、モーダル遷移などのCSS/JSアニメーションを実装。UIに動きを付けたい、インタラクションを滑らかにしたい時に使用。
Help users develop and coach product managers. Use when someone is managing PMs, creating development plans, running performance reviews, or trying to level up their PM team's capabilities.
React useEffect best practices from official docs. Use when writing/reviewing useEffect, useState for derived values, data fetching, or state synchronization. Teaches when NOT to use Effect and...
Frontend testing rules with Vitest, React Testing Library, and MSW. Includes coverage requirements, test design principles, and quality criteria. Use when writing frontend tests or reviewing test quality.
Knowledge and utilities for creating animated GIFs optimized for Slack. Provides constraints, validation tools, and animation concepts. Use when users request animated GIFs for Slack like "make me...
Help users build and scale internal platforms and technical infrastructure. Use when someone is deciding whether to build vs buy tooling, designing developer platforms, creating shared services,...
React UI component systems with TailwindCSS + Radix + shadcn/ui. Stack: TailwindCSS (styling), Radix UI (primitives), shadcn/ui (components), React/Next.js. Capabilities: design system...
UI design system toolkit for Senior UI Designer including design token generation, component documentation, responsive design calculations, and developer handoff tools. Use for creating design...
Performs comprehensive security audits identifying vulnerabilities, misconfigurations, and security best practice violations across applications, APIs, infrastructure, and data pipelines. Covers...
Comprehensive React and Vite SPA performance, architecture, and deployment guidelines. Use this skill when building, reviewing, or refactoring React applications built with Vite (SPA). Covers...
Review code for quality, security, and best practices. Use when analyzing code, suggesting improvements, or conducting code reviews.
Run accessibility and visual design review on components. Use when reviewing UI code for WCAG compliance and design issues.
Run accessibility and visual design review on components. Use when reviewing UI code for WCAG compliance and design issues.
Generate spaced repetition flashcards from notes or topics. Use when user wants to create flashcards, make review cards, prepare for spaced repetition, or convert notes to quiz format. Triggers on...
Generates new Ralph hat collection presets through guided conversation. Asks clarifying questions, validates against schema constraints, and outputs production-ready YAML files.
Design and generate OpenAPI 3.1 specifications following industry best practices. Use this skill to (1) create API specs from requirements, (2) review existing specs for compliance, (3) apply...