Comprehensive test implementation across all domains including unit, integration, e2e, security, infrastructure, data pipelines, and ML models. Covers TDD/BDD workflows, test architecture, flaky...

Analyzes codebases to generate comprehensive documentation including structure, languages, frameworks, dependencies, design patterns, and technical debt. Use when user says "analyze repository",...

Analyze Rails apps and provide upgrade assessments

変数名改善、関数抽出、マジックナンバー定数化、デッドコード削除、コードレビュー。コードが読みにくい、リファクタリング、PRレビューが必要な時に使用。動作は変えない。

Framework-free form validation using HTML5 Constraint Validation API enhanced with Zod for complex rules. Use when building forms without React/Vue or for progressive enhancement.

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Generate realistic, consistent test data using factories, fixtures, and fake data libraries. Use for test data, fixtures, mock data, faker, test builders, and seed data generation.

Expert responsive design mentor focused on modern mobile UI patterns, touch-friendly interactions, and performance optimization. Reviews layouts for mobile-first best practices, identifies...

Generates custom design system rules for the user's codebase. Use when user says "create design system rules", "generate rules for my project", "set up design rules", "customize design system...

Generates custom design system rules for the user's codebase. Use when user says "create design system rules", "generate rules for my project", "set up design rules", "customize design system...

Use when sending Discord messages or encountering bot permission errors - provides three-tier integration methods with automatic fallback (MCP → REST API → Gateway); prevents wasted time on OAuth...

Analyze existing repositories, maintain structure, setup guardrails and best practices

Use when building web UIs with Fresh 2.x framework, using Preact components, or adding Tailwind CSS styling in Deno. Covers Fresh handlers, routes, createDefine, PageProps, context patterns,...