Total 50,540 skills, Frontend Development has 4868 skills
Showing 12 of 4868 skills
Game architecture patterns and best practices for browser games. Use when designing game systems, planning architecture, structuring a game project, or making architectural decisions about game code.
Build 2D browser games with Phaser 3 using scene-based architecture and centralized state. Use when creating a new 2D game, adding 2D game features, working with Phaser, or building sprite-based web games.
Comprehensive guide for implementing feature flags and A/B tests using the Flags SDK (the `flags` npm package). Use when: (1) Creating or declaring feature flags with `flag()`, (2) Setting up feature flag providers/adapters (Vercel, Statsig, LaunchDarkly, PostHog, GrowthBook, Hypertune, Edge Config, OpenFeature, Flagsmith, Reflag, Split, Optimizely, or custom adapters), (3) Implementing precompute patterns for static pages with feature flags, (4) Setting up evaluation context with `identify` and `dedupe`, (5) Integrating the Flags Explorer / Vercel Toolbar, (6) Working with feature flags in Next.js (App Router, Pages Router, Middleware) or SvelteKit, (7) Writing custom adapters, (8) Encrypting/decrypting flag values for the toolbar, (9) Any task involving the `flags`, `flags/next`, `flags/sveltekit`, `flags/react`, or `@flags-sdk/*` packages. Triggers on: feature flags, A/B testing, experimentation, flags SDK, flag adapters, precompute flags, Flags Explorer, feature gates, flag overrides.
TypeScript, React, and JavaScript best practices enforced by Ultracite/Biome.
Comprehensive Next.js, React, Redux, and TypeScript development guidelines covering SOLID principles, component architecture, and best practices.
Background utilities Tailwind CSS v4.1. Colors (bg-{color}, palette OKLCH P3), Gradients (bg-linear-*, bg-radial-*, bg-conic-* NEW), Images (bg-cover, bg-contain, bg-repeat), Blend modes.
Arktype patterns for discriminated unions using .merge() and .or(), spread key syntax, and type composition. Use when building union types, combining base schemas with variants, or defining command/event schemas with arktype.
Visual design intelligence and UI aesthetics. Integrates: chrome-devtools, ai-multimodal, media-processing. Capabilities: design analysis, visual hierarchy, color theory, typography, micro-interactions, animation, design systems, accessibility. Actions: analyze, design, create, capture, evaluate, implement UI aesthetics. Keywords: Dribbble, Behance, Mobbin, design inspiration, visual hierarchy, color palette, typography, spacing, animation, micro-interaction, design system, style guide, accessibility, WCAG, contrast ratio, golden ratio, whitespace, visual rhythm. Use when: building beautiful UIs, analyzing design inspiration, implementing visual hierarchy, adding animations/micro-interactions, creating design systems, evaluating aesthetic quality, capturing design screenshots.
When the user wants to add, optimize, or audit a top announcement bar or sticky banner. Also use when the user mentions "announcement bar," "top banner," "sticky bar," "promo banner," "header banner," "announcement bar design," "sticky header," "promo bar," "urgency banner," or "lead capture bar."
PostHog integration for Next.js App Router applications
Migrating from Mapbox GL JS to MapLibre GL JS — package and import changes, removing the access token, choosing tile sources, plugin equivalents, and what you gain or give up. Use when moving an existing Mapbox map to MapLibre.
Comprehensive skill for Three.js 3D web development. Use this skill when building interactive 3D scenes, WebGL/WebGPU applications, product configurators, 3D visualizations, or immersive web experiences. Triggers on tasks involving Three.js, 3D rendering, scenes, cameras, meshes, materials, lights, animations, textures, or WebGL/WebGPU rendering.