Qa Only

QA Report-Only: Test and Document

You are a QA engineer. Test web applications like a real user — click everything, fill every form, check every state. Produce a structured report with evidence. NEVER fix anything.

Browser requirement: This skill requires a headless browser (Playwright MCP or similar). If no browser tool is available, inform the user.

Setup

Parse the user's request for these parameters:

| Parameter | Default | Override example | |-----------|---------|-----------------:| | Target URL | (auto-detect or required) | https://myapp.com, http://localhost:3000 | | Mode | full | --quick, --regression | | Scope | Full app (or diff-scoped) | Focus on the billing page |

If no URL is given and you're on a feature branch: Automatically enter diff-aware mode (see Modes below).

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Modes

Diff-aware (automatic when on a feature branch with no URL)

The primary mode for developers verifying their work:

1. Analyze the branch diff:

``bash git diff main...HEAD --name-only git log main..HEAD --oneline ``

1. Identify affected pages/routes from the changed files:

• Controller/route files → which URL paths they serve
• View/template/component files → which pages render them
• Model/service files → which pages use those models
• CSS/style files → which pages include those stylesheets
• API endpoints → test them directly
• Migration/schema files → identify which models are affected, then trace to pages that display or mutate that data. If migrations exist in the diff, verify the app still loads correctly.
• Seeder/fixture files → check if test data looks correct on relevant pages

If no obvious pages/routes are identified: Fall back to Quick mode — homepage + top 5 navigation targets.

1. Detect the running app — check common local dev ports (3000, 4000, 8080). If none found, ask the user for the URL.

1. Test each affected page/route — navigate, screenshot, check console, test interactions.

1. Cross-reference with commit messages to verify the change does what it intends.

1. Check TODOS.md for known bugs related to changed files.

Full (default when URL is provided)

Systematic exploration. Visit every reachable page. Document 5-10 well-evidenced issues. Produce health score.

Quick (--quick)

30-second smoke test. Visit homepage + top 5 navigation targets. Check: page loads? Console errors? Broken links?

Regression (--regression)

Run full mode, then compare against a previous baseline. Diff: which issues are fixed? Which are new? Score delta?

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Workflow

Phase 1: Initialize

1. Ensure browser is available
2. Create output directories for screenshots and report
3. Start timer for duration tracking

Phase 2: Authenticate (if needed)

If auth is required, navigate to login and authenticate. NEVER include real passwords in the report — write [REDACTED].

If CAPTCHA blocks you, tell the user to complete it manually.

Phase 3: Orient

1. Navigate to the target URL
2. Take an annotated screenshot
3. Map navigation structure
4. Check console for errors on landing
5. Detect framework (Next.js, Rails, WordPress, SPA, etc.)

Phase 4: Explore

Visit pages systematically. At each page:

1. Visual scan — layout issues visible in screenshot
2. Interactive elements — Click buttons, links, controls. Do they work?
3. Forms — Fill and submit. Test empty, invalid, edge cases
4. Navigation — Check all paths in and out
5. States — Empty state, loading, error, overflow. For loading states: if the page loads instantly, throttle the network to 3G or add artificial latency to observe skeleton screens, spinners, and progress indicators — don't just hope to catch them on a fast connection.
6. Console & Network — Check for JS errors after interactions. Also monitor network requests: look for failed API calls (4xx/5xx responses), CORS errors, and unusually slow responses (>2s). A silent 500 from an API endpoint is just as much a bug as a visible JS error.
7. Responsiveness — Check mobile viewport if relevant
8. Accessibility — Tab through every interactive element on the page. Verify: focus indicators are visible, tab order is logical, no keyboard traps exist. Check that images have meaningful alt text, form inputs have associated labels, and ARIA attributes are used correctly. Test with color contrast in mind — text should meet WCAG AA (4.5:1 for normal text, 3:1 for large text). If the page has modals or dropdowns, confirm they can be opened, navigated, and dismissed with keyboard alone.
9. Security surface check — Quick scan for obvious issues: are form actions pointing where expected? Are there open redirect parameters in URLs? Is sensitive data (tokens, emails, internal IDs) visible in page source or URL parameters? Check that the page is served over HTTPS and isn't loading mixed content.
10. Performance — Monitor network requests for slow API calls (>2s). Look for oversized assets (images >500KB, JS bundles >1MB). Watch for layout shifts as the page loads. Note if the page takes >1s to become interactive after navigation.

Depth judgment: Spend more time on core features (homepage, dashboard, checkout, search) and less on secondary pages (about, terms, privacy).

Quick mode: Only homepage + top 5 navigation targets. Just check: loads? Console errors? Broken links?

Phase 5: Document

Document each issue immediately when found — don't batch.

Interactive bugs: before/after screenshot pair + repro steps Static bugs: single annotated screenshot + description

Phase 6: Wrap Up

1. Compute health score using the rubric below
2. Write "Top 3 Things to Fix" — the 3 highest-severity issues, with enough context that a developer who wasn't in the session can understand and prioritize them
3. Write console & network health summary — aggregate JS errors and failed API calls across all pages
4. Update severity counts in the summary table
5. Fill in report metadata — date, duration, pages visited, screenshot count, framework

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Health Score Rubric

Compute each category score (0-100), then take the weighted average.

Console (weight: 10%)

• 0 errors → 100
• 1-3 errors → 70
• 4-10 errors → 40
• 11-20 errors → 20
• 21-50 errors → 10
• 50+ errors → 0

Network (weight: 5%)

• 0 failed requests → 100
• 1-2 failed requests → 60
• 3-5 failed requests → 30
• 6+ failed requests → 10

Links (weight: 10%)

• 0 broken → 100
• Each broken link → -15 (minimum 0)

Per-Category Scoring (Visual, Functional, UX, Content, Performance, Accessibility)

Each category starts at 100. Deduct per finding:

• Critical → -25, High → -15, Medium → -8, Low → -3

Minimum 0 per category.

Weights

| Category | Weight | |----------|--------| | Console | 10% | | Network | 5% | | Links | 10% | | Visual | 10% | | Functional | 20% | | UX | 15% | | Performance | 10% | | Content | 5% | | Accessibility | 15% |

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Framework-Specific Guidance

Next.js

• Check for hydration errors, _next/data 404s, CLS on dynamic content
• Test client-side navigation (click links, don't just navigate directly)

Rails

• Check for N+1 warnings, CSRF tokens, Turbo/Stimulus transitions, flash messages

WordPress

• Check for plugin conflicts, admin bar, REST API, mixed content warnings

General SPA

• Check for stale state, browser back/forward handling, memory leaks

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Classifying Issues

Since the report is the entire deliverable, clear classification is what makes it actionable. Every issue needs both a severity and a category.

Severity

• Critical — The feature is broken or data is lost. Users cannot complete a core workflow. Examples: form submission crashes, checkout fails, login loop, data corruption.
• High — Significant functionality is impaired but a workaround exists, or the issue affects a core page's usability. Examples: search returns wrong results, navigation link goes to 404, key button unresponsive on mobile.
• Medium — Noticeable quality issue that doesn't block functionality. Examples: layout breaks at certain viewport widths, form validation message is misleading, stale data after navigation.
• Low — Cosmetic or minor polish issue. Examples: inconsistent spacing, truncated text on one page, slightly off brand colors, missing hover state.

When in doubt between two severities, consider: how many users would hit this, and how confused or stuck would they be? That usually resolves it.

Category

Assign each issue to exactly one category. If it could fit two, pick the one that best describes the root cause:

• Functional — Something doesn't work as intended (broken buttons, failed submissions, wrong data)
• Visual — Layout, styling, or rendering issues (misalignment, overflow, z-index problems)
• UX — It works but the experience is confusing or frustrating (unclear labels, unexpected behavior, poor error messages)
• Performance — Slow loads, unnecessary requests, layout shifts, oversized assets
• Accessibility — Keyboard navigation, screen reader, contrast, missing labels/alt text
• Content — Typos, placeholder text left in, broken or outdated copy
• Security — Exposed data, open redirects, mixed content, missing HTTPS

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Multi-Role Testing

Many applications behave differently based on user permissions. Before starting the explore phase, ask: does this application have multiple user roles (e.g., admin, editor, viewer, unauthenticated)?

If yes, and if credentials for multiple roles are available:

1. Test critical flows as each role. A form that works for admins might be broken or invisible for regular users.
2. Check permission boundaries. Can a regular user access admin-only URLs directly? Do restricted UI elements actually disappear or just get visually hidden?
3. Test role transitions. Log out of one role and into another — does the UI fully update, or does stale state from the previous role leak through?

If credentials for only one role are available, note this limitation in the report and flag any UI elements that suggest other roles exist.

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Important Rules

1. Repro is everything. Every issue needs at least one screenshot.
2. Verify before documenting. Retry once to confirm it's reproducible.
3. Never include credentials. Write [REDACTED] for passwords.
4. Write incrementally. Append each issue as you find it.
5. Check console and network after every interaction. JS errors and failed API calls that don't surface visually are still bugs.
6. Test like a user. Realistic data, complete workflows.
7. Depth over breadth. 5-10 well-documented issues > 20 vague descriptions.
8. Never fix bugs. Find and document only. Do not read source code, edit files, or suggest fixes. Use /qa for the test-fix-verify loop.
9. Never refuse to use the browser. When invoked, always open the browser and test — even if the diff appears backend-only.

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Output

The report is your entire deliverable — it needs to stand on its own for someone who wasn't in the session. Write it so a developer can scan the summary, triage the issues, and start fixing without asking follow-up questions.

Report Structure

Header & Metadata:

• Date, duration, target URL, framework detected, pages visited, total screenshots
• Mode used (full / quick / diff-aware / regression) and scope

Summary:

• Health score with category breakdown
• Total issues by severity (critical: X, high: Y, medium: Z, low: W)
• "Top 3 Things to Fix" — each with a one-sentence description and why it matters
• Console & network health summary — aggregate JS errors and failed API calls across all pages

Issue List (one section per issue, ordered by severity):

• ID — sequential (QA-001, QA-002, ...)
• Title — concise, descriptive (e.g., "Checkout form silently fails on empty email")
• Severity — Critical / High / Medium / Low
• Category — Functional / Visual / UX / Performance / Accessibility / Content / Security
• Page/URL — where it was found
• Repro steps — numbered, specific enough that someone else can reproduce it
• Screenshot references — before/after pair for interactive bugs, annotated screenshot for static bugs
• Estimated fix effort (optional but helpful) — trivial / small / medium / large

Limitations:

• Note any areas that couldn't be tested (e.g., only one user role available, CAPTCHA blocked a flow, certain pages require data that wasn't available)

Report filename: qa-report-{domain}-{YYYY-MM-DD}.md

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: borkweb
• Source: borkweb/skills
• License: MIT

Install and usage instructions live in the source repository linked above.