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Multi-component React artifacts for Claude with bundling, state management, and shadcn/ui component library. \n \n Scaffolds React 18 + TypeScript projects with Vite, Tailwind CSS, and 40+ pre-installed shadcn/ui components via automated initialization script \n Bundles complete artifacts into single self-contained HTML files with inlined assets, ready for Claude artifact display \n Includes design guidance to avoid common \"AI slop\" patterns like excessive centering, purple gradients, and unif

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React useEffect best practices guide covering when to use Effects and superior alternatives. \n \n Teaches the escape-hatch nature of Effects: use only for synchronizing with external systems, not for derived state, expensive calculations, or user event responses \n Provides a decision tree and quick-reference table mapping common situations (data fetching, state derivation, prop changes) to the correct React pattern \n Covers when NOT to use Effects: transforming data for render, handling user

Connect to ComfyUI's REST API to execute workflows, monitor progress, and retrieve outputs.

Create, edit, read, and manipulate PowerPoint presentations with design guidance and quality assurance workflows. \n \n Supports three primary workflows: reading/extracting text from existing .pptx files, editing presentations via template unpacking and repacking, and creating decks from scratch using PptxGenJS \n Includes 10 curated color palettes and typography pairings designed to avoid generic AI aesthetics, plus layout patterns (two-column, icon rows, grids, half-bleed images) with specific

Essential Vue Composition utilities for state, sensors, browser APIs, and common patterns. \n \n 200+ composables across 12 categories including state persistence, mouse tracking, keyboard input, network requests, animations, and array operations \n Auto-imports in Nuxt via @vueuse/nuxt module; manual imports required for Vue 3 standalone \n SSR-safe composables return sensible defaults on server; use isClient guard or onMounted wrapper for browser-only APIs \n Common patterns include useLocalSt

Provides complete frontend development expertise for building production-ready web applications with modern frameworks (React, Vue, Next.js), comprehensive tooling setup, state management patterns, testing infrastructure, and performance optimization strategies.

A 3-phase workflow for extracting, structuring, and applying design identity across three dimensions:

Automated UI code review against Vercel's Web Interface Guidelines. \n \n Fetches the latest guidelines from the official Vercel repository before each review to ensure current rule compliance \n Analyzes React, Vue, Svelte, HTML, CSS, and JavaScript/TypeScript files against all fetched rules \n Reports violations in file:line format with actionable feedback on how to fix each issue \n Supports file paths and glob patterns for flexible scope selection across projects \n

These rules are distilled from Matthew Butterick's Practical Typography (https://practicaltypography.com). Butterick is a typographer, writer, and type designer whose work bridges professional typography and everyday digital writing. Thank you, Matthew, for making this knowledge accessible and encyclopedic. If you find this skill valuable, consider supporting his work directly.