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mockup-sandbox

Render and preview UI components on a canvas with a Vite dev server.

1|Updated Apr 8, 2026
Search Tags:#responsive design#UI prototyping#design exploration#vite dev server#component preview
One-click install
npx skills add https://github.com/alyamenfactory/new --skill mockup-sandbox-alyamenfactory
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mockup-sandbox
Source: https://github.com/alyamenfactory/new/tree/main/.local/skills/mockup-sandbox
Command: npx skills add https://github.com/alyamenfactory/new --skill mockup-sandbox-alyamenfactory

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires tailwindcss, shadcn/ui, cartographer, and includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill provides a canvas for designing, previewing, and iterating on web UI components, enabling real-time rendering and comparison of design variants.

Core Features & Use Cases

  • UI Prototyping: Create and preview web UI components on a canvas.
  • Responsive Previews: Show components on different devices (mobile, tablet, desktop).
  • Component States: Preview states like loading, error, and empty.
  • Theme Comparison: Compare dark vs light mode and other visual variations.
  • Variant Exploration: Parallelize work with DESIGN subagents for multiple design alternatives.
  • Use Case: Design a pricing card, prototype a landing page, or compare design variants side-by-side.

Quick Start

Activate the mockup-sandbox skill to start designing your UI components on the canvas.

Frequently Asked Questions about mockup-sandbox

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I preview UI components on a canvas for rapid prototyping?▼

To preview UI components on a canvas for rapid prototyping, this tool runs a vite dev server that renders components in real-time, allowing you to design, iterate, and compare web UI variants directly.

Can I use Tailwind and shadcn/ui for responsive design previews?▼

Yes, you can use Tailwind and shadcn/ui for responsive design previews. The sandbox requires both frameworks to render components and enables you to visualize layouts across mobile, tablet, and desktop devices.

What is the best way to compare UI design variants side-by-side?▼

The best way to compare UI design variants side-by-side is by parallelizing work with DESIGN subagents, which allows you to explore multiple visual alternatives like dark versus light themes simultaneously on the canvas.

How do I prototype different component states like loading and error?▼

You can prototype different component states like loading and error by rendering your web UI components on the canvas, which supports previewing various states to test user experience flows comprehensively.

Do I need a vite dev server to render and iterate on web UI components?▼

Yes, you need a vite dev server to render and iterate on web UI components. It provides the local development environment necessary to support real-time rendering and rapid UI prototyping within the sandbox.

Are there limitations when using cartographer for component rendering?▼

Cartographer is required alongside Tailwind and shadcn/ui for component rendering and styling, meaning your UI prototyping is constrained to components compatible with this specific tech stack.

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