mobile-first-validation

Validate listing outputs for readability and visual hierarchy at 320px, 375px, and 414px viewports.

Updated Apr 10, 2026
One-click install
npx skills add https://github.com/NetzSicht/Skill---W-S-Company --skill mobile-first-validation
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mobile-first-validation
Source: https://github.com/NetzSicht/Skill---W-S-Company/tree/main/skills/mobile-first-validation
Command: npx skills add https://github.com/NetzSicht/Skill---W-S-Company --skill mobile-first-validation

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Listings that look good on desktop often fail to convert on mobile. This skill defines concrete mobile-first validation steps to ensure readability, visual hierarchy, and essential information render correctly on small screens.

Core Features & Use Cases

  • Enforces 3 critical viewports (320px, 375px, 414px) for text, images, and layout.
  • Provides step-by-step tests for thumbnails, first-screen hierarchy, bullet readability, and content density.
  • Useful for Listing-Briefer, Content Master, A+ Content Designer, and Quality-Reviewer to validate mobile deliverables before client delivery.

Quick Start

Run the mobile-first validation workflow against a listing draft to verify 320px readability, thumbnail visibility, bullet length, and A+ content responsiveness.

Frequently Asked Questions about mobile-first-validation

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

FAQPage Schema
How do I validate mobile listing readability on small screens?

You can validate mobile listing readability by applying step-by-step tests for text legibility, thumbnail visibility, and visual hierarchy across 320px, 375px, and 414px viewports. This ensures essential listing information renders correctly before client delivery.

What is mobile-first validation for e-commerce listings?

Mobile-first validation is a testing process that enforces readability and visual hierarchy for listing components on small screens. It specifies checks for thumbnail size, text legibility, and content density across 320px, 375px, and 414px viewports to prevent loss of mobile traffic.

How do I check if A+ content fits on a 320px viewport?

Check A+ content responsiveness on a 320px viewport by testing content density and overlay visibility. The validation workflow specifies pass/fail criteria for first-screen hierarchy and bullet readability to ensure layouts adjust correctly on small screens.

Does mobile-first validation work for listing components like bullets and images?

Yes, mobile-first validation works for listing components like bullets, titles, images, and overlays. It provides step-by-step tests for bullet length, thumbnail size, and contrast to ensure visual hierarchy and readability on mobile devices.

Why does my desktop listing design fail to convert on mobile traffic?

Desktop listing designs fail to convert on mobile traffic because text legibility, thumbnail visibility, and content density often degrade on small screens. Mobile-first validation enforces visual hierarchy and readability checks across 320px, 375px, and 414px viewports to fix this.

What are the limitations of mobile-first validation for listing drafts?

The limitation of mobile-first validation is that it focuses strictly on visual hierarchy and readability constraints across three specific viewports (320px, 375px, 414px). It provides pass/fail criteria and adjustment guidance, but does not automatically fix the rendering code for the listing components.