Visual Regression Testing

design visual-regression candidates around baselines, viewports, fonts, data, diff thresholds, and intentional changes. Produce VRT-## findings. This Skill organizes traceable visual quality candidates only; it does not execute tests or turn a design inventory into coverage, pass, or release evidence.

When to Use

• When you need visual regression testing candidates from page inventories, baseline screenshots, viewports and browsers, fonts, test data, diff thresholds, design changes, and prior diffs.
• When you need selection rationale, applicability constraints, evidence gaps, and the smallest validation action.
• When inputs are incomplete but a bounded first pass can preserve blocked or unassessed boundaries.

Do not use it to execute tests, invent behavior conclusions, replace a complete strategy, or accept risk for a Human.

Output Format Options

• Use Markdown by default; use tables, JSON, or CSV only when explicitly requested or required by the delivery format.
• Separate static analysis, unexecuted work, evidence states, and Human decisions; keep items unassessed, blocked, or NOT_RUN when runtime evidence is absent.

How to Use