Total 31,089 skills, Frontend Development has 3063 skills
Showing 12 of 3063 skills
Run /check-onboarding, then fix the highest priority onboarding issue. Creates one fix per invocation. Invoke again for next issue. Use /log-onboarding-issues to create issues without fixing.
Complete guide for building Moldable apps. Use this skill when creating new apps with scaffoldApp, modifying existing apps, implementing workspace-aware storage, integrating with the Moldable desktop via postMessage APIs (moldable:show-in-folder, moldable:set-chat-input, moldable:set-chat-instructions, moldable:save-file), configuring workspaces, managing skills/MCPs, or troubleshooting app issues. Essential for any Moldable app development task.
Bundle Size Analyzer - Auto-activating skill for Frontend Development. Triggers on: bundle size analyzer, bundle size analyzer Part of the Frontend Development skill category.
Load PROACTIVELY when task involves optimizing speed, reducing bundle size, or improving responsiveness. Use when user says "make it faster", "reduce bundle size", "fix slow queries", "optimize rendering", or "check Core Web Vitals". Covers bundle analysis and tree-shaking, database query optimization (N+1, indexing), React rendering performance (re-renders, memoization), network waterfall optimization, memory leak detection, server-side performance, and Core Web Vitals (LCP, FID, CLS) improvement.
Use when building Next.js 16+ apps with React Server Components. Covers App Router, Cache Components (replacing experimental_ppr), streaming SSR, Server Actions, and React 19 patterns for server-first architecture.
Implements internationalization (i18n) in React applications. Covers user-facing strings, date/time handling, locale-aware formatting, ICU MessageFormat, and RTL support. Use when building multilingual UIs or formatting dates/currency.
Help users add icons to their projects using the Unicon icon library. Unicon provides 19,000+ icons from Lucide, Phosphor, Hugeicons, Heroicons, Tabler, Feather, Remix, Simple Icons (brand logos), and Iconoir. Use when adding icons to React, Vue, Svelte, or web projects; using the unicon CLI to search, get, or bundle icons; setting up .uniconrc.json config; generating tree-shakeable icon components; using the Unicon API; or converting between icon formats.
Apply React best practices when writing or reviewing React code. Use when building components, reviewing PRs, refactoring React code, fixing performance issues, debugging re-renders, structuring state and data flow, converting useEffect to loaders, building forms, or asking "how should I structure this component".
TanStack Query (React Query) v5 best practices for data fetching, caching, mutations, and server state management. Use when building data-driven React applications, setting up query configurations, implementing mutations/optimistic updates, configuring caching strategies, integrating with SSR, or fixing v4→v5 migration errors.
Material Symbols v3 variable icon font system. Use when adding icons to buttons, navigation, status indicators, or any UI element. Provides 2,500+ icons with fill, weight, grade, and optical size axes. Integrates with project color tokens.
Automatically cache optimizer for React Data Fetching following React 18+ best practices
Image Optimization Helper - Auto-activating skill for Frontend Development. Triggers on: image optimization helper, image optimization helper Part of the Frontend Development skill category.