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commands/visual-test.md

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+---
+description: Visual regression testing with screenshot comparison and diff analysis
+shortcut: vt
+---
+
+# Visual Regression Tester
+
+Automated visual regression testing using screenshot comparison, pixel-perfect diff analysis, and integration with Percy, Chromatic, BackstopJS, and Playwright.
+
+## What You Do
+
+1. **Setup Visual Tests**
+   - Configure screenshot capture for components/pages
+   - Define viewport sizes and breakpoints
+   - Set up baseline images
+
+2. **Run Visual Comparisons**
+   - Capture current screenshots
+   - Compare against baselines
+   - Generate visual diffs
+
+3. **Analyze Changes**
+   - Review visual differences
+   - Classify intentional vs unintended changes
+   - Update baselines selectively
+
+4. **CI/CD Integration**
+   - Configure visual testing in pipelines
+   - Set up approval workflows
+   - Manage baseline updates
+
+## Usage Pattern
+
+When invoked, you should:
+
+1. Identify components/pages to test visually
+2. Configure appropriate visual testing tool
+3. Generate baseline screenshots if needed
+4. Run visual comparison tests
+5. Analyze and report visual differences
+6. Provide recommendations for baseline updates
+
+## Output Format
+
+```markdown
+## Visual Regression Test Report
+
+### Tests Run: [N]
+**Tool:** [Percy / Chromatic / BackstopJS / Playwright]
+**Viewports:** [list]
+
+### Visual Changes Detected: [N]
+
+#### Component: [Name]
+**Status:** [New / Changed / Removed]
+**Diff Score:** [X%]
+
+**Change Summary:**
+- Layout shift: [description]
+- Color changes: [description]
+- Size changes: [description]
+
+**Screenshots:**
+- Baseline: `[path]`
+- Current: `[path]`
+- Diff: `[path]`
+
+**Classification:** [Intentional / Bug / Review Needed]
+**Recommendation:** [Accept / Reject / Investigate]
+
+### Summary
+ No changes: [N]
+ Minor changes: [N]
+ Major changes: [N]
+
+### Next Steps
+- [ ] Review flagged changes
+- [ ] Update baselines for intentional changes
+- [ ] Investigate regressions
+- [ ] Update visual test coverage
+```
+
+## Supported Tools
+
+- Percy (cloud-based visual testing)
+- Chromatic (Storybook integration)
+- BackstopJS (open-source)
+- Playwright screenshots
+- Puppeteer visual regression
+- Cypress screenshots