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Visual Regression Testing

Checked
aj-geddes·vlatest·testing·MIT

Automates visual UI regression testing, identifying unexpected changes across different versions and environments.

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add aj-geddes/useful-ai-prompts --skill visual-regression-testing -a claude-code
  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

aj-geddes

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

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  • No credential access: passed

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  • Pinned to a commit: passed

    Scanned aj-geddes/useful-ai-prompts at 3f5182cfd7.

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Scanned
9 files, 564 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

Visual regression testing compares screenshots of a user interface across different builds to detect unintended visual changes. It ensures that layout shifts, color mismatches, or broken elements do not degrade the user experience after code updates.

When to use it

  • UI Redesigns: Verify that new CSS frameworks or component libraries render correctly without breaking existing layouts.
  • Theme Switching: Ensure dark mode, light mode, and other theme variations display consistently across all pages.
  • Responsive Design: Confirm that the interface adapts properly when viewed on mobile devices versus desktop screens.
  • Accessibility Audits: Catch visual regressions that might impact screen readers or keyboard navigation flows.

Key capabilities

  • Automates screenshot capture of specific UI states during test execution.
  • Performs pixel-by-pixel comparison between current and baseline images.
  • Generates detailed reports highlighting exact locations of visual discrepancies.
  • Integrates with continuous integration pipelines for automated quality gates.

Example prompts

  • "Run a visual regression test comparing the latest build against our approved baseline screenshots."
  • "Identify any layout shifts in the checkout flow after deploying the new payment gateway component."
  • "Generate a report of all color contrast violations found in the mobile navigation menu."

Tips & gotchas

Visual regression testing requires maintaining an up-to-date library of baseline images; stale baselines will cause false positives. For best results, configure tests to run only on critical user journeys rather than every single screen to reduce noise and execution time.