Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the...

Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having...

Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web...

Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when...

RivetKit backend and Rivet Actor runtime guidance. Use for building, modifying, debugging, or testing Rivet Actors,...

Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and...

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend...

React useEffect best practices from official docs. Use when writing/reviewing useEffect, useState for derived...

Download YouTube videos with customizable quality and format options. Use this skill when the user asks to download,...

Transforms workflow to use Manus-style persistent markdown files for planning, progress tracking, and knowledge...

Use when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before...

Use when starting feature work that needs isolation from current workspace or before executing implementation plans...

UI/UX design intelligence. 67 styles, 96 palettes, 57 font pairings, 25 charts, 13 stacks (React, Next.js, Vue,...