design-eval

Capture screenshots, compare UI against design mockups, and generate rubric-based fidelity scores.

Updated May 16, 2026
One-click install
npx skills add https://github.com/ramboz/servo --skill design-eval
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: design-eval
Source: https://github.com/ramboz/servo/tree/main/hosts/claude/skills/design-eval
Command: npx skills add https://github.com/ramboz/servo --skill design-eval

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires playwright, claude-code, codex, and includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill automates the evaluation of UI design fidelity in projects, saving time and ensuring consistency between the design and the implemented UI.

Core Features & Use Cases

  • UI Design Fidelity Evaluation: Automatically assesses how closely the built UI matches a design mockup.
  • Customizable Evaluation Criteria: Allows projects to define their own evaluation criteria and rubrics.
  • Integration with Existing Workflows: Seamlessly integrates with existing project workflows and CI/CD pipelines.

Quick Start

Use the design-eval skill to initiate the evaluation process for a project UI. Run the command: /servo:design-eval init <target> to set up the evaluation environment.

Frequently Asked Questions about design-eval

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

FAQPage Schema
How do I automate UI design fidelity evaluation against mockups?

Automate UI design fidelity evaluation by capturing Playwright screenshots, comparing them with design mockups, and generating scores via Claude Code or Codex vision models using a predefined rubric.

Can I customize the evaluation criteria for my UI design fidelity checks?

Yes, you can define custom evaluation criteria and rubrics to assess how closely your built web or mobile UI matches the design mockups.

Do I need Playwright to evaluate UI design fidelity?

Yes, Playwright is required for UI screenshotting, while Claude Code or Codex handles vision model scoring.

How do I integrate UI design fidelity evaluation into a CI/CD pipeline?

UI design fidelity evaluation integrates with existing workflows and CI/CD pipelines by running the init command on your target UI to set up the automated scoring environment.

What is the best way to score implemented UI against a design mockup?

The best way to score an implemented UI is using an automated process that captures screenshots and applies predefined rubrics via Claude Code or Codex vision models.