Automates post-deployment web UI QA: smoke tests, interactions, visual regression at breakpoints, accessibility audits using Playwright/Puppeteer.
npx claudepluginhub pcoulbourne/everything-claude-codeThis skill uses the workspace's default tool permissions.
- After deploying a feature to staging/preview
Delivers DB-free sandbox API regression tests for Next.js/Vitest to catch AI blind spots in self-reviewed code changes like API routes and backend logic.
Implements Clean Architecture in Android and Kotlin Multiplatform projects: module layouts, dependency rules, UseCases, Repositories, domain models, and data layers with Room, SQLDelight, Ktor.
Provides process, architecture, review, hiring, and testing guidelines for engineering teams relying on AI code generation.
Uses the browser automation MCP (claude-in-chrome, Playwright, or Puppeteer) to interact with live pages like a real user.
1. Navigate to target URL
2. Check for console errors (filter noise: analytics, third-party)
3. Verify no 4xx/5xx in network requests
4. Screenshot above-the-fold on desktop + mobile viewport
5. Check Core Web Vitals: LCP < 2.5s, CLS < 0.1, INP < 200ms
1. Click every nav link — verify no dead links
2. Submit forms with valid data — verify success state
3. Submit forms with invalid data — verify error state
4. Test auth flow: login → protected page → logout
5. Test critical user journeys (checkout, onboarding, search)
1. Screenshot key pages at 3 breakpoints (375px, 768px, 1440px)
2. Compare against baseline screenshots (if stored)
3. Flag layout shifts > 5px, missing elements, overflow
4. Check dark mode if applicable
1. Run axe-core or equivalent on each page
2. Flag WCAG AA violations (contrast, labels, focus order)
3. Verify keyboard navigation works end-to-end
4. Check screen reader landmarks
## QA Report — [URL] — [timestamp]
### Smoke Test
- Console errors: 0 critical, 2 warnings (analytics noise)
- Network: all 200/304, no failures
- Core Web Vitals: LCP 1.2s ✓, CLS 0.02 ✓, INP 89ms ✓
### Interactions
- [✓] Nav links: 12/12 working
- [✗] Contact form: missing error state for invalid email
- [✓] Auth flow: login/logout working
### Visual
- [✗] Hero section overflows on 375px viewport
- [✓] Dark mode: all pages consistent
### Accessibility
- 2 AA violations: missing alt text on hero image, low contrast on footer links
### Verdict: SHIP WITH FIXES (2 issues, 0 blockers)
Works with any browser MCP:
mChild__claude-in-chrome__* tools (preferred — uses your actual Chrome)mcp__browserbase__*Pair with /canary-watch for post-deploy monitoring.