verify-ui

Compare live Flutter UI against reference designs via pixel-level diff analysis.

6|Updated Apr 23, 2026
One-click install
npx skills add https://github.com/ImL1s/flutter-claude-skills --skill verify-ui-iml1s
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: verify-ui
Source: https://github.com/ImL1s/flutter-claude-skills/tree/main/skills/verify-ui
Command: npx skills add https://github.com/ImL1s/flutter-claude-skills --skill verify-ui-iml1s

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Flutter UI often drifts from design specs; verify-ui provides a rigorous, evidence-based method to confirm UI matches Figma or reference on real devices, reducing false positives.

Core Features & Use Cases

  • Side-by-side visual comparison: compare live UI against the reference design with clear diff highlights.
  • Real-device verification: capture screenshots on actual devices instead of emulators to ensure authenticity.
  • Progress evidence & iteration: document diffs and resolutions to support design-to-code handoffs and QA.

Quick Start

Run the verify-ui skill on your current Flutter screen to begin a side-by-side visual comparison with the reference design.

Frequently Asked Questions about verify-ui

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

FAQPage Schema
How do I verify my Flutter UI matches the Figma design pixel-perfectly?

To verify your Flutter UI matches a reference design, you can run a pixel-level visual comparison on a real device. This process captures live screenshots, performs side-by-side diff analysis, and highlights discrepancies to ensure your implementation is pixel-perfect.

Why does my Flutter UI look different on a real device compared to the emulator?

Flutter UI often drifts from design specs because emulators do not render authentic hardware behaviors. Real-device verification captures actual screenshots to perform evidence-based visual regression checks, reducing false positives and confirming true UI fidelity.

What is the best way to perform visual regression testing for Flutter screens?

The best way to perform visual regression testing is capturing screenshots on actual hardware and conducting side-by-side diff analysis against a reference design. This evidence-based method identifies pixel-level UI discrepancies before claiming implementation is complete.

Can I document UI discrepancies for design-to-code handoffs using pixel-perfect verification?

Yes, you can document UI discrepancies and resolutions to support design-to-code handoffs and visual QA. By capturing real-device screenshots and performing side-by-side visual comparison, you generate progress evidence to track iterations across supported screen sizes.

Does UI verification work for multiple screen sizes and devices in Flutter?

Yes, UI verification works across supported screen sizes and devices by capturing screenshots on actual hardware. This ensures the live Flutter UI maintains pixel-perfect accuracy against the reference design, providing evidence-based validation before visual QA completion.