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Devvraj10
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mockup-sandbox

Design and preview web UI components in an isolated sandbox environment.

Updated May 6, 2026
Search Tags:#responsive design#prototyping#sandbox#web ui#component preview
One-click install
npx skills add https://github.com/Devvraj10/Niv --skill mockup-sandbox-devvraj10
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mockup-sandbox
Source: https://github.com/Devvraj10/Niv/tree/main/.local/skills/mockup-sandbox
Command: npx skills add https://github.com/Devvraj10/Niv --skill mockup-sandbox-devvraj10

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill provides a platform for designing, previewing, and iterating on web UI components in an isolated sandbox environment, enhancing the efficiency of UI development processes.

Core Features & Use Cases

  • Isolated Development: Allows development of web UI components in a sandboxed environment separate from the main application.
  • Responsive Previews: Enables previewing of components in different screen sizes (mobile, tablet, desktop).
  • Component State Previewing: Provides the ability to view component states like loading, error, and empty.
  • Theme Comparison: Allows for comparing themes such as dark mode vs light mode.
  • Use Case: Ideal for designing or prototyping web UI components, especially when comparing multiple design variants side-by-side or previewing component states.

Quick Start

To start designing a component in the mockup sandbox, use the following command: createArtifact { artifactType: "mockup-sandbox", slug: "your-slug", title: "Component Name" }.

Frequently Asked Questions about mockup-sandbox

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

FAQPage Schema
How do I preview web UI components in an isolated environment?▼

You can preview web UI components in an isolated environment by running a vite dev server within a sandbox. This allows you to safely iterate on designs separate from your main application.

Can I test responsive design across mobile, tablet, and desktop screen sizes?▼

Yes, responsive design testing is supported across mobile, tablet, and desktop screen sizes. The sandbox renders component variants side-by-side to verify layout adaptations.

How do I compare component states like loading and error in web UI prototyping?▼

Component state previews allow you to compare loading, error, and empty states directly in the sandbox. This helps evaluate UI behavior without triggering real application events.

What is the best way to compare dark mode and light mode themes for web components?▼

The best way to compare dark and light mode themes is using the sandbox theme comparison feature. It renders both variants simultaneously for immediate visual contrast.

Do I need a vite dev server to prototype web components in this sandbox?▼

Yes, the sandbox utilizes a vite dev server to provide live component previews. This integration enables instant updates as you iterate on your web UI designs.

How do I start prototyping a new web UI component?▼

To start prototyping, use the createArtifact command with artifactType set to mockup-sandbox, providing a slug and title. This initializes your isolated component preview environment.

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