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Sir-chawakorn
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preview-mode

Preview code changes locally with browser automation and visual diff comparisons.

33|5|Updated Jan 14, 2026
Search Tags:#workflow#testing#ui#deployment#preview#visual diff
One-click install
npx skills add https://github.com/Sir-chawakorn/power-ranger-toolkit --skill preview-mode
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: preview-mode
Source: https://github.com/Sir-chawakorn/power-ranger-toolkit/tree/main/src/skills/preview-mode
Command: npx skills add https://github.com/Sir-chawakorn/power-ranger-toolkit --skill preview-mode

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This Skill allows developers to preview changes in a safe environment before deploying to production, significantly reducing the risk of introducing bugs or breaking live systems.

Core Features & Use Cases

  • Local Development Server: Quickly spin up local servers using common frameworks (Vite, Next.js, CRA).
  • Browser Preview & Recording: Automate browser navigation, capture screenshots, and record user interactions for detailed review.
  • Visual Diffing: Compare before-and-after screenshots to easily spot visual regressions.
  • Use Case: Before pushing a new UI component to production, use this skill to preview it locally, capture screenshots of different screen sizes, and compare them against the previous version to ensure consistency.

Quick Start

Use the preview-mode skill to run npm run dev to start a local development server.

Frequently Asked Questions about preview-mode

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

FAQPage Schema
How do I preview code changes locally before deployment?▼

Preview code changes locally before deployment by spinning up a local development server using frameworks like Vite, Next.js, or Create React App to safely test new features without affecting production.

What is visual diffing and how does it prevent UI regressions?▼

Visual diffing compares before-and-after screenshots of a UI component to spot visual regressions. It automates browser navigation to capture screenshots, ensuring layout consistency across different screen sizes before pushing updates.

Can I use browser automation to record interactions for stakeholder demonstrations?▼

Yes, you can use browser automation to record user interactions and capture screenshots for stakeholder demonstrations. This provides a safe environment to showcase UI changes and code reviews without deploying to live systems.

What's the best way to test UI changes across multiple screen sizes safely?▼

The best way to test UI changes safely is to run a local development server, use browser automation to capture screenshots of different screen sizes, and perform visual diff comparisons against the previous version to ensure consistency.

Do I need browser automation tools to use the preview environment?▼

Yes, integrating with browser automation tools is required to enable core preview features like capturing screenshots, recording user interactions, and performing visual diff comparisons during local development.

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