85 skills · sorted by relevance
Build Next.js 14+ applications with App Router, server-rendered components, and form actions. Produces routes, page layouts, data fetching, loading and error states, and SEO metadata, while supporting performance optimization and deployment preparation.
Recover failed writes of large files or code containing special characters by placing content in a temporary Python script. Use raw strings or Base64 encoding, then check that the output file exists and has content.
Provides patterns and code examples for building Next.js 16+ applications with App Router architecture. Use when creating projects with App Router, implementing Server Components and Client Components ("use client"), creating Server Actions for forms, building Route Handlers (route.ts), configuring caching with "use cache" directive (cacheLife, cacheTag), setting up parallel routes (`@slot`) or intercepting routes, migrating to proxy.ts, or working with App Router file conventions (layout.tsx, page.tsx, loading.tsx, error.tsx).
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Startup rules for the app shell, layouts, and global providers. Use when editing app/Providers.tsx, app/DeferredSingletonWrapper.tsx / DeferredSingletonCore.tsx, a layout.tsx, StoreProvider, or a global provider; adding startup fetches or mount-time useEffects high in the tree; or reading auth state (isAdmin, isGuest, fingerprintId) client-side.
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Refresh the GitHub star count displayed on Remotion’s website. It checks GitHub, rounds the number down to the nearest thousand, updates three components, and commits and pushes the changes to main.
Review TypeScript type assertions, which tell the compiler to treat a value as a chosen type. Replace bare casts with better types or runtime checks, and use explicit helpers with specific reasons when an escape hatch remains necessary.
Turn a product description into a landing page with headlines, feature sections, pricing, FAQs, and calls to action. Receive Next.js/React components styled with Tailwind CSS, plus search metadata, structured data, and alternative copy.
Remix v2 routing patterns. Use when implementing flat-routes v2 conventions, route file naming, nested layouts, resource routes, or root.tsx scaffolding. Triggers on _<name>.tsx (pathless layout), _index.tsx, $param, app/routes/, @remix-run/dev, defineRoutes, <Outlet /> in route modules.
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Use this skill when handling runtime errors, adding error.tsx or not-found.tsx, designing fallback UI, or deciding what to surface to users vs logs. Trigger words: エラー処理, error.tsx, not-found, 例外, フォールバック, エラーバウンダリ, try catch, ユーザー向けエラー, ログ.
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A deprecated guide to building MCP servers with mcp-use, covering callable actions, data resources, reusable prompts, and interactive widgets. It includes design references and code examples, and directs users to the replacement skill, mcp-app-builder.
Investigate a video that is not working by downloading it, setting it as the source in a sample component, and running a Remotion render with verbose logs to examine the behavior.
Use shell heredocs, which pass multiline text directly to a command, when write_file fails on complex code. Save TypeScript, JSX, JSON, or shell scripts with literal quotes and formatting, then verify the file and its contents.
Guide Claude Code hook development with shell wrappers and TypeScript handlers. It covers event timing, JSON input and output, hook registration, and manual testing, including handlers that can block tool execution.
Render videos from React/Remotion component code via inference.sh. Pass TSX code, get MP4. Supports all Remotion APIs: useCurrentFrame, useVideoConfig, spring, interpolate, AbsoluteFill, Sequence. Configurable resolution, FPS, duration, codec. Use for: programmatic video generation, animated graphics, motion design, data-driven videos, React animations to video. Triggers: remotion, render video from code, tsx to video, react video, programmatic video, remotion render, code to video, animated video, motion graphics code, react animation video
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TypeScript/JavaScript conventions. Apply automatically whenever writing or editing JavaScript, TypeScript, JSX, or TSX code (.js/.jsx/.ts/.tsx) — functions, types, type safety, immutability, error handling, comments, file size, exports, naming, and library conventions for dates and data handling (ts-belt, ts-pattern). Use for any new code or refactor in these languages. For React-specific rules (components, hooks, JSX, TanStack Query, Zustand, React Hook Form), also apply the react skill.
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iOS / Android platform-specific code in React Native: Platform.OS, Platform.select, .ios.tsx / .android.tsx file extensions, native modules, permissions, safe area handling, status bar. Use this skill to: - Branch code at runtime via Platform.OS / Platform.select. - Use file extensions for whole-component swaps. - Link and use native modules (Expo SDK or autolinked bare). - Handle permissions across platforms. - Configure status bar and safe area correctly. Do NOT use this skill for: - General project structure (see rn-conventions). - Navigation (see rn-navigation). - Storage (see rn-state-and-storage). - Testing (see rn-testing).
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Creates and maintains Figma Code Connect files (`*.figma.tsx`) that map Figma components to code via the parser-based `figma.connect()` API. Use when the user mentions Code Connect, Figma component mapping, design-to-code translation, or asks to create/update .figma.tsx files.
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Use when writing or reviewing TypeScript frontend tests — Jest unit/integration tests for React components and hooks built with Chakra UI, React Query, Zustand, and Next.js App Router. Triggers on edits to `*.test.tsx`, React component/hook test files (`.tsx`, not `.ts`) under `**/__tests__/`, custom test render helpers, or mentions of "frontend test", "component test", "hook test", "React test", "UI test".
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Use when writing, reviewing, or optimizing React/Next.js code. Triggers on .tsx/.jsx files, React component work, Next.js routes, bundle optimization, re-render issues, or performance improvements. Auto-activates alongside mk:typescript when React project detected.
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設計の実体。業務構造の診断(中心対象・最頻操作・主役と隠すもの・触りたさ・装飾除去テスト)から体験の規律(デフォルト効果・認知負荷・楽さとミス防止・一括操作・下書き保存・正直なUI・エラー回復・データを消さない・ホーム情報設計・知覚パフォーマンス・行動科学の道具箱)と検収までを1冊で持つ。React hooks は assets/ux-patterns.tsx。機能設計/画面フロー/フォーム設計/UX改善/レビュー/「AIっぽい」指摘の対応で必ず参照する。見た目の素材は Skill jp-web-design。
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Investigate Node.js bugs by pausing execution, examining variables, and stepping through code. Diagnose stalled asynchronous work and unreliable tests, or collect memory snapshots and CPU profiles to investigate growing memory use and slow execution.
Create a single-page editorial landing site from a brand brief, using paper textures, collage imagery, and structured content sections. The output includes responsive layouts, scroll animations, and sticky navigation, with generated, placeholder, or supplied images.
Inspect raw HTML responses for a correct HTML5 doctype at the start of the document. Identify missing or outdated declarations and preceding content, then guide fixes that enable standards-mode rendering in browsers.
Turn written descriptions or Mermaid code into diagrams showing processes, interactions, and data relationships. Choose a color theme and save both SVG files, which stay sharp when enlarged, and high-resolution PNG images.