Harness-engineering harness-visual-regression

name: harness-visual-regression version: "1.0.0" description: Screenshot comparison, visual diff detection, and baseline management stability: static cognitive_mode: meticulous-verifier paths:

• 'percy.yml'
• '.storybook/main.ts'
• '.storybook/main.js' triggers:
• manual
• on_pr platforms:
• claude-code
• gemini-cli
• cursor
• codex tools:
• Bash
• Read
• Write
• Edit
• Glob
• Grep
• emit_interaction cli: command: harness skill run harness-visual-regression args:
  • name: path description: Project root path required: false
  • name: tool description: "Visual testing tool: chromatic, percy, pixelmatch, or playwright. Auto-detected when omitted." required: false
  • name: update-baselines description: "Update baseline screenshots instead of comparing. Defaults to false." required: false mcp: tool: run_skill input: skill: harness-visual-regression path: string type: rigid tier: 3 internal: false keywords:
• visual regression
• screenshot
• visual diff
• Chromatic
• Percy
• Pixelmatch
• Storybook
• baseline
• snapshot
• visual testing
• CSS regression stack_signals:
• "visual-tests/"
• ".chromatic/"
• "percy.yml"
• ".storybook/"
• "tests/visual/"
• "screenshots/" phases:
• name: detect description: Identify UI components, existing visual tests, and rendering infrastructure required: true
• name: baseline description: Capture or verify baseline screenshots for target components and viewports required: true
• name: compare description: Run visual diff against baselines and classify changes as intentional or regression required: true
• name: report description: Generate visual diff report with annotated screenshots and approval workflow required: true state: persistent: false files: [] depends_on: []