qa-detect-ux-symmetry

Detect visual layout asymmetry in web interfaces via DOM bounding-box analysis.

Updated May 22, 2026
One-click install
npx skills add https://github.com/Luqman-Ud-Din/blackbox-qa-agent --skill qa-detect-ux-symmetry
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: qa-detect-ux-symmetry
Source: https://github.com/Luqman-Ud-Din/blackbox-qa-agent/tree/main/skills/qa-detect-ux-symmetry
Command: npx skills add https://github.com/Luqman-Ud-Din/blackbox-qa-agent --skill qa-detect-ux-symmetry

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill finds subtle layout imbalance that makes interfaces feel visually wrong, such as content shifted off-center, mismatched card edges, or uneven section spacing.

Core Features & Use Cases

  • Container symmetry checks: Detects left/right padding imbalances in main content areas that make pages look crooked.
  • Card and section alignment checks: Flags sibling cards with inconsistent edges or widths, plus drifting section margins that create stair-step layouts.
  • Viewport-aware visual QA: Focuses on issues that appear at specific screen sizes, especially wide desktop layouts where centering matters most.

Quick Start

Use the qa-detect-ux-symmetry skill to inspect the current page for off-center containers, misaligned cards, and uneven section spacing.

Frequently Asked Questions about qa-detect-ux-symmetry

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

FAQPage Schema
How do I detect visual layout asymmetry in responsive web interfaces?▼

Visual layout asymmetry is detected by measuring container centering, sibling card alignment, and section margin drift using browser DOM inspection. This identifies off-balance spacing and mismatched card edges that appear at specific viewport widths.

Why does my UI look crooked on wide desktop layouts?▼

Crooked UI layouts on wide desktops often stem from left and right padding imbalances in main content areas. Container symmetry checks can flag these off-center containers by analyzing bounding boxes with viewport-sensitive thresholds.

How do I check sibling card alignment and width consistency in a component grid?▼

Sibling card alignment and width consistency are checked by inspecting DOM bounding boxes to flag inconsistent edges. This catches stair-step layouts and uneven section spacing caused by drifting margins across responsive component grids.

Can I automate visual QA for off-center containers at specific viewport widths?▼

Yes, visual QA for off-center containers is automated by applying viewport-sensitive thresholds to browser DOM bounding-box analysis. This reports deterministic UI defects like mismatched card edges and uneven section margins at targeted screen sizes.

Does visual layout symmetry testing work without external UI testing dependencies?▼

Visual layout symmetry testing operates directly through browser DOM inspection and bounding-box analysis without requiring external dependencies. It measures container centering and width consistency deterministically across responsive pages.

What causes stair-step layouts and uneven section spacing in responsive design?▼

Stair-step layouts and uneven section spacing are caused by drifting section margins and inconsistent sibling card widths. DOM inspection catches these visual layout asymmetries by measuring bounding boxes against viewport-sensitive thresholds.