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ui-fidelity-check

Compare Figma designs with front-end implementations and output ui_fidelity_report.json.

Updated Aug 23, 2026
Search Tags:#ui#frontend#qa#figma#design-system#visual-regression#screenshot-comparison
One-click install
npx skills add https://github.com/taptap/agents-plugins --skill ui-fidelity-check
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ui-fidelity-check
Source: https://github.com/taptap/agents-plugins/tree/main/plugins/test/skills/ui-fidelity-check
Command: npx skills add https://github.com/taptap/agents-plugins --skill ui-fidelity-check

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Automates verification of UI fidelity by comparing Figma design artifacts with live or code-based front-end implementations, reducing manual visual inspection and catch regressions early.

Core Features & Use Cases

  • Visual + Structural Comparison: Compares design screenshots and structured design context from Figma with implementation screenshots and DOM snapshots to identify layout, spacing, color, and typography differences.
  • State Coverage & Reporting: Detects presence or absence of design states (default, loading, empty, error), computes coverage, assigns severity and confidence, and outputs a structured ui_fidelity_report.json for QA and acceptance.
  • Fallback Modes & Robustness: Supports structural-only mode when pages are not accessible by reading code directories, includes retries and downgrade logic, and produces deterministic JSON artifacts for pipelines and traceability.
  • Use Cases: Post-implementation QA, design handoff validation, regression checks for design systems, and automated acceptance gating.

Quick Start

Run the ui-fidelity-check skill with a Figma design link and optional page URL to generate a ui_fidelity_report.json detailing differences, severities, and overall fidelity.

Frequently Asked Questions about ui-fidelity-check

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

FAQPage Schema
How do I verify UI fidelity between Figma designs and front-end implementations?▼

UI fidelity verification compares Figma design screenshots with live front-end implementations to detect visual and structural differences. It identifies layout, spacing, color, and typography mismatches by evaluating design context against DOM snapshots.

Can I check Figma design implementation accuracy without a live page URL?▼

Yes, you can verify Figma design implementation accuracy without a live URL using a structural-only fallback mode. By reading code directories directly, the comparison evaluates design context against the codebase when pages are inaccessible.

What is visual regression testing for design systems and how does it handle UI states?▼

Visual regression testing for design systems detects UI differences by comparing design artifacts against implementations. It validates the presence of design states including default, loading, empty, and error, computing coverage to ensure comprehensive state matching.

How do I automate front-end QA acceptance testing with Figma?▼

Automating front-end QA with Figma involves comparing design screenshots and structured context with implementation snapshots. This generates a structured JSON report detailing per-difference confidence, severity, and overall fidelity for acceptance gating.

Does UI fidelity comparison work with Browser MCP and Figma MCP?▼

Yes, UI fidelity comparison works with Figma MCP and Browser MCP. It retrieves design context and screenshots from Figma MCP, and optionally navigates and snapshots the live page via Browser MCP to perform visual and structural comparisons.

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