layouts-and-rendering
Expert guidance for Rails view rendering, layouts, partials, and content composition. Use when rendering templates, choosing between render and redirect_to, creating or using partials, working with layouts, using content_for/yield/provide, rendering collections, streaming responses, or handling Turbo-aware status codes. Covers render vs redirect (agents confuse these!), partial locals (never instance variables!), layout selection, conditional rendering, nested layouts, and collection rendering.
propshaft
Expert guidance for the Propshaft asset pipeline in Rails 8+. Use when working with assets, stylesheets, CSS organization, JavaScript assets, import maps, asset precompilation, fingerprinting, images, fonts, CDN setup, or migrating from Sprockets. Covers file structure, stylesheet_link_tag, image_tag, @layer ordering, @import, CSS custom properties, asset helpers, deployment, and common Propshaft pitfalls. Trigger on "propshaft", "asset pipeline", "assets", "stylesheet", "javascript assets", "import maps", "asset precompile", "CSS organization", "sprockets migration", "fingerprinting", "stylesheet_link_tag", "image_tag", "asset_path".
rails-components
Expert guidance for building reusable UI components in Rails using partials, CSS classes, and helpers. Use when creating components, partials, reusable UI patterns, empty states, modals, cards, buttons, badges, alerts, data tables, or any component pattern. Covers decision framework for CSS-only vs partial vs helper vs ViewComponent, proper use of local_assigns, block yielding, capture for slots, variant patterns, and component galleries.
routing
Expert guidance for defining routes in Rails applications. Use when adding routes, working with resources, nested routes, namespaces, path helpers, routes.rb, RESTful design, API routes, URL helpers, or any routing-related task. Covers resources, singular resources, nesting, namespace vs scope, constraints, concerns, member/collection routes, and route testing.
lucide-icons
Expert guidance for using Lucide icons in Rails applications via the lucide-rails gem. Use when adding icons, choosing icon names, styling SVG icons, making icons accessible, or building icon-based UI patterns (buttons, nav, badges, empty states). Triggers on "lucide", "icon", "lucide-rails", "SVG icon", "icon library", "lucide_icon", "feather icon", "inline SVG", "add an icon", "icon button", "icon name".
security
Expert guidance for writing secure Rails applications. Use when dealing with security, CSRF protection, XSS prevention, SQL injection, authentication, authorization, sanitize, html_safe, credentials, secrets, content security policy, session security, mass assignment, strong parameters, secure headers, file uploads, open redirects, or vulnerability remediation. Covers every major attack vector and the Rails-idiomatic defenses.
active-record-encryption
Expert guidance for encrypting sensitive data at rest using Active Record Encryption in Rails. Use when adding encryption to model attributes, rotating keys, migrating unencrypted data, querying encrypted fields, or protecting PII. Triggers on "encryption", "encrypt", "encrypts", "encrypted attribute", "at-rest encryption", "field encryption", "key rotation", "deterministic encryption", "PII", "sensitive data", "encrypt column", "encrypts macro".
stimulus
Expert guidance for building Stimulus controllers in Rails applications. Use when creating JavaScript behaviors, writing data-controller/data-action/data-target attributes, building interactive UI components, or working with Hotwire Stimulus. Covers controller creation, targets, values, actions, classes, outlets, lifecycle callbacks, progressive enhancement, and common patterns like clipboard, flash, modal, toggle, and form validation.
testing
Expert guidance for Rails testing infrastructure, test types, and what to test. Use when writing tests, setting up a test suite, choosing between test types, configuring system tests (Capybara), request tests, integration tests, helper tests, mailer tests, job tests, Action Cable tests, parallel testing, CI setup, test database management, or improving test coverage. Covers the test runner, fixtures vs factories, parallel testing, system tests (drivers, screenshots), request tests, controller tests (legacy), helper tests, mailer tests, job tests, Action Cable tests, test coverage, CI patterns, and test database strategies. Trigger on "test", "testing", "test suite", "system test", "request test", "integration test", "test runner", "parallel testing", "capybara", "test database", "CI testing", "test coverage".
uuid-primary-keys
Expert guidance for implementing UUID primary keys in Rails applications. Use when setting up UUIDs as primary keys, choosing between UUIDv4 and UUIDv7, configuring generators for UUID defaults, writing migrations with id colon uuid, adding UUID foreign keys, implementing base36 encoding for URL-friendly IDs, configuring PostgreSQL pgcrypto or gen_random_uuid, implementing SQLite binary UUID storage, choosing a primary key type, using non-sequential IDs, secure IDs, random IDs, or any ID generation strategy beyond auto-increment integers.
turbo
Expert guidance for building modern Rails UIs with Turbo (Drive, Frames, Streams). Use when implementing partial page updates, real-time broadcasts, turbo frames, turbo streams, hotwire patterns, turbo_frame_tag, turbo_stream responses, lazy loading frames, morphing, page refreshes, or any "turbo" related Rails feature. Covers Turbo Drive navigation, Turbo Frames for scoped updates, Turbo Streams for real-time HTML delivery, and Turbo 8 morphing.
active-record-validations
Expert guidance for Active Record validations in Rails 8.1. Use when adding validations, writing "validates", "validate", working with "errors", "valid?", "invalid?", building custom validators, handling uniqueness, presence, format validation, numericality, conditional validations, strict validations, or normalizations. Covers model-layer data integrity, DB constraint pairing, error handling, and common pitfalls.
caching
Expert guidance for Rails caching — fragment caching, Russian doll caching, cache keys/versioning, low-level caching (Rails.cache), conditional GET (stale?/fresh_when), and cache stores (Solid Cache, Redis, Memcached). Use when implementing cache, caching, fragment cache, Russian doll, Rails.cache, Solid Cache, cache key, HTTP caching, stale?, fresh_when, cache store, or optimizing performance.
css-architecture
Expert guidance for CSS architecture in Rails applications using modern CSS (no Tailwind). Use when writing stylesheets, organizing CSS files, implementing dark mode, defining design tokens, using CSS custom properties, creating component styles, working with CSS layers (@layer), using the light-dark() function, setting up color schemes, or structuring CSS for maintainability. Covers design tokens, semantic color systems, component-scoped styles, utility classes, responsive patterns, and file organization.
form-helpers
Expert guidance for building forms in Rails 8 applications. Use when creating forms, form_with, form helpers, nested forms, select helpers, file uploads, form builders, accepts_nested_attributes_for, fields_for, collection_select, grouped_collection_select, date/time selects, checkboxes, radio buttons, rich text areas, or any form-related view code. Covers model-backed forms, URL-based forms, complex nested attributes with _destroy, custom form builders, CSRF tokens, strong parameters for nested forms, and Stimulus integration.
migrations
Expert guidance for writing safe, reversible Active Record migrations in Rails applications. Use when creating a migration, adding a column, removing a column, changing schema, modifying a table, creating a table, adding an index, adding a foreign key, renaming a column, changing column type, database migration, schema change, rolling back, migration error, data migration, multi-database migration, or any database structure change.
minitest
Expert guidance for writing fast, maintainable Minitest tests in Rails applications. Use when writing tests, converting from RSpec, debugging test failures, improving test performance, or following testing best practices. Covers model tests, policy tests, request tests, system tests, fixtures, and TDD workflows.
Malicious Skill
A skill with embedded malicious scripts
Safe Linter
A safe skill that just runs linting
Cloud Scanner
Scanning cloud environment for leaks
tiempo
Use when working with dates, times, timezones, or datetime conversions in TypeScript/JavaScript. Provides guidance on using the tiempo library for timezone-safe datetime handling with the Temporal API.
x402lint
Validate and create x402 payment endpoint responses (HTTP 402 Payment Required). Use when the user asks to: (1) validate an x402 config or 402 response, (2) create/generate an x402 payment config, (3) build an HTTP 402 endpoint that returns payment requirements, (4) debug why an x402 config is invalid, (5) convert between x402 v1 and v2 formats, (6) check EVM/Solana addresses for x402, or (7) work with CAIP-2 network identifiers for payment configs. Triggers on keywords: x402, 402 payment, payment-required header, paywall config, CAIP-2 payment.
checkout-directory
Discover merchants supporting agentic commerce protocols (UCP, ACP). Use when users want to buy products online, find merchants by category, check UCP/ACP protocol support, or get merchant API endpoints for programmatic checkout.
project-analyzer
Analyzes Java project structure and generates comprehensive documentation including tech stack, architecture, modules, configuration, internal SDKs, and development guidelines. Use this skill when you need to understand a Java/Spring Boot codebase, onboard new developers, generate project documentation, or provide context for AI-assisted development. Triggers include "analyze project structure", "generate project documentation", "what is the project architecture", or when starting work on an unfamiliar codebase.
oracle-dba
Oracle DBA and DevOps expertise for Autonomous Database (ADB) on OCI. This skill should be used when managing Oracle Autonomous Databases, writing optimized SQL/PLSQL, configuring security (TDE, Database Vault, Data Safe), implementing HA/DR (Data Guard, PITR), using OCI CLI for database operations, or integrating with Oracle MCP servers for AI-assisted database management. Covers Oracle Database versions 19c, 21c, 23ai, and 26ai.
wheels-router
Plan public transit trips globally using Wheels Router (Hong Kong) and Transitous (worldwide)
Smart Commit
Generate intelligent commit messages in Korean following Conventional Commits.
convert-image
PNG/JPG/JPEG画像をWebP、ICO、SVG形式に変換。「画像を変換して」「webpに変換」などで使用。
creating-thumbnails
Generates Nano Banana Pro prompts for blog and YouTube thumbnail images. Use when user mentions "サムネイル作成", "サムネ", "YouTube用画像", or "ブログ画像".
creating-tech-diagrams
Generates Nano Banana Pro prompts for technical explanation infographics. Use when user mentions "図解作成", "テック図解", or "AI解説図".
creating-profile-images
Generates Nano Banana Pro prompts for profile icons and SNS images. Use when user mentions "プロフィール画像", "アイコン作成", "SNS用画像", or "ヘッダー画像".
pixta-metadata
PIXTAへの出品用タイトル・タグを生成。「PIXTAタグ」「PIXTA出品」「ストックイラスト登録」と言われたら使用。
creating-illustrations
Generates high-quality image prompts for AI image generators (Midjourney, DALL-E, Stable Diffusion). Use when user mentions "イラスト作成", "画像プロンプト", "プロンプト生成", or "画像生成".
slidev-creator
独自性のある高品質なSlidevプレゼンテーションを作成。「スライド作成」「プレゼン作成」「Slidev」などのリクエストで使用。
creating-characters
Generates Nano Banana Pro prompts for original character designs. Use when user mentions "キャラクター作成", "キャラデザ", or "オリキャラ".
technyan-x-post-generator
記事からテクにゃん.のXアカウント用ポスト投稿案を生成。日英両方の投稿案を3パターンずつ生成。
optimize-post
原稿からXのアルゴリズムに最適化されたポスト内容を生成。「X投稿を最適化」「ツイート作成」などで使用。
quote-repost
元のポストに自分のコメントや意見を加えて引用リポストするための内容を生成。「引用リポスト」「引用ツイート」などで使用。
tech-video-metadata
技術解説系YouTube動画のメタデータ(タイトル・概要欄・ハッシュタグ)を生成するスキル。プロスペクト理論を活かした損失回避の心理を使ったタイトル生成、見やすい概要欄(目次、タイムテーブル、SNSリンク含む)、体系的なハッシュタグ選定を実施。「YouTube用のタイトルを作成」「動画の概要欄を生成」などのリクエストで利用。
weekly-news-metadata
週刊テックニュース動画のYouTubeメタデータ（タイトル・概要欄・ハッシュタグ）を生成するスキル。「週刊ニュースを作成して」「週刊テックニュースを作りたい」などのリクエストで利用。
creating-engineer-manga
Generates Nano Banana Pro prompts for 4-panel engineer humor comics. Use when user mentions "漫画作成", "エンジニア漫画", "4コマ", or "あるある".
skill-scanner
Macで登録済みClaude agent skillsをスキャンし一覧表示。「スキルを調べて」「登録済みスキル一覧」などで使用。読み取り専用で安全に実行。
ocr
画像ファイルからテキストを抽出しクリップボードにコピー。「文字起こし」「OCR」などで使用。
note-optimizer
noteプラットフォームに最適化された記事を生成・最適化。タイトル最適化、モバイル対応、ハッシュタグ生成。「note用に最適化」「note記事作成」などで使用。
claude-md-creator
プロジェクトの内容をもとに、最適なCLAUDE.mdを作成する（60行以下、普遍的で常に適用されるべき内容を中心にWHY/WHAT/HOWのみ）
chrome-ext-review
Chrome Web Storeのユーザーレビューへの返信を生成。ポジティブ・ネガティブ両方に対応。「レビュー返信」「レビュー対応」などで使用。
chrome-ext-develop
Chrome拡張機能の開発からChrome Web Store申請準備までをサポート。「拡張機能を開発」「Chrome拡張作成」などで使用。
BGM Creation & YouTube Upload Agent
Suno用のBGMプロンプトを生成し、YouTubeにアップロードするためのAgent skill
bash-script-generator
ユーザー要件に基づき、ベストプラクティスに従った堅牢なBashスクリプトを生成する
ai-news-fetcher
Tavily MCPを使用して最新AIニュースを取得し、日英バイリンガルのマークダウン記事を生成。「AIニュースを取得」「最新ニュース」などで使用。
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