How do I install the Browser QA skill?

Run npx skillmds@latest add jantoniofc/browser-qa in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Browser QA safe to use?

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Which AI agents work with Browser QA?

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Is Browser QA free to use?

Yes. Installing skills from SkillMD is free. This skill is licensed under MIT.

Who published Browser QA?

JantonioFC (@jantoniofc) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Browser QA by jantoniofc — Agent Skill

Name: Browser QA
Rating: 4.5 (4 reviews)
Author: JantonioFC

Browser QA

- After deploying a feature to staging/preview - When you need to verify UI behavior across pages - Before shipping — confirm layouts, forms, interactions actually work - When reviewing PRs that touch frontend code - Accessibility audits and responsive testing

JantonioFC Updated Sep 8, 2026 6 repo stars

File contents

Browser QA — Automated Visual Testing & Interaction

When to Use

After deploying a feature to staging/preview
When you need to verify UI behavior across pages
Before shipping — confirm layouts, forms, interactions actually work
When reviewing PRs that touch frontend code
Accessibility audits and responsive testing

How It Works

Uses the browser automation MCP (claude-in-chrome, Playwright, or Puppeteer) to interact with live pages like a real user.

Phase 1: Smoke Test

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

Phase 2: Interaction Test

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)

Phase 3: Visual Regression

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

Phase 4: Accessibility

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

Output Format

## 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)

Integration

Works with any browser MCP:

mChild__claude-in-chrome__* tools (preferred — uses your actual Chrome)
Playwright via mcp__browserbase__*
Direct Puppeteer scripts

Pair with /canary-watch for post-deploy monitoring.

---name: browser-qadescription: - After deploying a feature to staging/preview - When you need to verify UI behavior across pages - Before shipping — confirm layouts, forms, interactions actually work - When reviewing PRs that touch frontend code - Accessibility audits and responsive testinglicense: MIT---# Browser QA — Automated Visual Testing & Interaction## When to Use- After deploying a feature to staging/preview- When you need to verify UI behavior across pages- Before shipping — confirm layouts, forms, interactions actually work- When reviewing PRs that touch frontend code- Accessibility audits and responsive testing## How It WorksUses the browser automation MCP (claude-in-chrome, Playwright, or Puppeteer) to interact with live pages like a real user.### Phase 1: Smoke Test```1. Navigate to target URL2. Check for console errors (filter noise: analytics, third-party)3. Verify no 4xx/5xx in network requests4. Screenshot above-the-fold on desktop + mobile viewport5. Check Core Web Vitals: LCP < 2.5s, CLS < 0.1, INP < 200ms```### Phase 2: Interaction Test```1. Click every nav link — verify no dead links2. Submit forms with valid data — verify success state3. Submit forms with invalid data — verify error state4. Test auth flow: login → protected page → logout5. Test critical user journeys (checkout, onboarding, search)```### Phase 3: Visual Regression```1. Screenshot key pages at 3 breakpoints (375px, 768px, 1440px)2. Compare against baseline screenshots (if stored)3. Flag layout shifts > 5px, missing elements, overflow4. Check dark mode if applicable```### Phase 4: Accessibility```1. Run axe-core or equivalent on each page2. Flag WCAG AA violations (contrast, labels, focus order)3. Verify keyboard navigation works end-to-end4. Check screen reader landmarks```## Output Format```markdown## 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)```## IntegrationWorks with any browser MCP:- `mChild__claude-in-chrome__*` tools (preferred — uses your actual Chrome)- Playwright via `mcp__browserbase__*`- Direct Puppeteer scriptsPair with `/canary-watch` for post-deploy monitoring.

Frequently asked questions