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mockup-sandbox

Render live UI components in an isolated Vite-based frontend sandbox.

Updated Apr 5, 2026
Search Tags:#sandbox#design-exploration#mockup#component-extraction#ui-prototyping#iframe-previews
One-click install
npx skills add https://github.com/offers-png/one-time-checkout --skill mockup-sandbox-offers-png
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mockup-sandbox
Source: https://github.com/offers-png/one-time-checkout/tree/main/.local/skills/mockup-sandbox
Command: npx skills add https://github.com/offers-png/one-time-checkout --skill mockup-sandbox-offers-png

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Isolated frontend sandbox to accelerate UI prototyping directly on the workspace canvas, eliminating the friction of wiring up apps for quick visual experiments.

Core Features & Use Cases

  • Isolated Vite-based dev server sandbox that renders live components via iframe previews on the canvas.
  • Automatic component discovery and a generated registry for fast iteration.
  • Supports design-variant exploration, extraction workflows, and subagent orchestration patterns for parallel work.

Quick Start

Start the mockup sandbox workflow and begin embedding iframe previews of 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 prototype live UI components on a canvas without wiring up a full app?▼

An isolated Vite-based frontend sandbox renders live UI components as iframe previews directly on the workspace canvas, eliminating the friction of wiring up a full application for quick visual experiments.

What is the best way to explore design variants during UI prototyping?▼

Using an isolated frontend sandbox that supports design-variant exploration and component extraction workflows lets you compare different responsive states visually directly on the canvas.

Can I use subagents for design exploration within a mockup workflow?▼

Yes, you can orchestrate subagents for parallel design exploration within the mockup workflow. The sandbox supports subagent orchestration patterns to accelerate visual iteration.

Does the sandbox require a specific dev server to render iframe previews?▼

Yes, rendering iframe previews requires a Vite-based dev server in a designated mockup-sandbox directory, a mockupPreviewPlugin for automatic component discovery, and a structured preview route at /__mockup/preview.

How do I set up automatic component discovery for UI prototyping?▼

You set up automatic component discovery by using the mockupPreviewPlugin within the Vite-based dev server to generate a component registry, enabling fast iteration and embedding of iframe previews on the canvas.

Why use an isolated sandbox for frontend visual experiments instead of a local dev environment?▼

An isolated sandbox accelerates UI prototyping directly on the workspace canvas, eliminating the friction of wiring up apps and allowing you to test responsive states and design variants quickly.

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