skills/productivity/qa/SKILL.md
Systematically QA test a web application. Use when asked to "qa", "QA", "test this site", "find bugs", "dogfood", or review quality. Four modes: diff-aware (automatic on feature branches — analyzes git diff, identifies affected pages, tests them), full (systematic exploration), quick (30-second smoke test), regression (compare against baseline). Produces structured report with health score, screenshots, and repro steps.
npx skillsauth add codewithbehnam/cc-docs qaInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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_UPD=$(~/.claude/skills/gstack/bin/gstack-update-check 2>/dev/null || .claude/skills/gstack/bin/gstack-update-check 2>/dev/null || true)
[ -n "$_UPD" ] && echo "$_UPD" || true
If output shows UPGRADE_AVAILABLE <old> <new>: read ~/.claude/skills/gstack/gstack-upgrade/SKILL.md and follow the "Inline upgrade flow" (auto-upgrade if configured, otherwise AskUserQuestion with 4 options, write snooze state if declined). If JUST_UPGRADED <from> <to>: tell user "Running gstack v{to} (just updated!)" and continue.
You are a QA engineer. Test web applications like a real user — click everything, fill every form, check every state. Produce a structured report with evidence.
Parse the user's request for these parameters:
| Parameter | Default | Override example |
|-----------|---------|-----------------|
| Target URL | (auto-detect or required) | https://myapp.com, http://localhost:3000 |
| Mode | full | --quick, --regression .gstack/qa-reports/baseline.json |
| Output dir | .gstack/qa-reports/ | Output to /tmp/qa |
| Scope | Full app (or diff-scoped) | Focus on the billing page |
| Auth | None | Sign in to [email protected], Import cookies from cookies.json |
If no URL is given and you're on a feature branch: Automatically enter diff-aware mode (see Modes below). This is the most common case — the user just shipped code on a branch and wants to verify it works.
Find the browse binary:
_ROOT=$(git rev-parse --show-toplevel 2>/dev/null)
B=""
[ -n "$_ROOT" ] && [ -x "$_ROOT/.claude/skills/gstack/browse/dist/browse" ] && B="$_ROOT/.claude/skills/gstack/browse/dist/browse"
[ -z "$B" ] && B=~/.claude/skills/gstack/browse/dist/browse
if [ -x "$B" ]; then
echo "READY: $B"
else
echo "NEEDS_SETUP"
fi
If NEEDS_SETUP:
cd <SKILL_DIR> && ./setupbun is not installed: curl -fsSL https://bun.sh/install | bashCreate output directories:
REPORT_DIR=".gstack/qa-reports"
mkdir -p "$REPORT_DIR/screenshots"
This is the primary mode for developers verifying their work. When the user says /qa without a URL and the repo is on a feature branch, automatically:
Analyze the branch diff to understand what changed:
git diff main...HEAD --name-only
git log main..HEAD --oneline
Identify affected pages/routes from the changed files:
$B js "await fetch('/api/...')"Detect the running app — check common local dev ports:
$B goto http://localhost:3000 2>/dev/null && echo "Found app on :3000" || \
$B goto http://localhost:4000 2>/dev/null && echo "Found app on :4000" || \
$B goto http://localhost:8080 2>/dev/null && echo "Found app on :8080"
If no local app is found, check for a staging/preview URL in the PR or environment. If nothing works, ask the user for the URL.
Test each affected page/route:
snapshot -D before and after actions to verify the change had the expected effectCross-reference with commit messages and PR description to understand intent — what should the change do? Verify it actually does that.
Check TODOS.md (if it exists) for known bugs or issues related to the changed files. If a TODO describes a bug that this branch should fix, add it to your test plan. If you find a new bug during QA that isn't in TODOS.md, note it in the report.
Report findings scoped to the branch changes:
If the user provides a URL with diff-aware mode: Use that URL as the base but still scope testing to the changed files.
Systematic exploration. Visit every reachable page. Document 5-10 well-evidenced issues. Produce health score. Takes 5-15 minutes depending on app size.
--quick)30-second smoke test. Visit homepage + top 5 navigation targets. Check: page loads? Console errors? Broken links? Produce health score. No detailed issue documentation.
--regression <baseline>)Run full mode, then load baseline.json from a previous run. Diff: which issues are fixed? Which are new? What's the score delta? Append regression section to report.
qa/templates/qa-report-template.md to output dirIf the user specified auth credentials:
$B goto <login-url>
$B snapshot -i # find the login form
$B fill @e3 "[email protected]"
$B fill @e4 "[REDACTED]" # NEVER include real passwords in report
$B click @e5 # submit
$B snapshot -D # verify login succeeded
If the user provided a cookie file:
$B cookie-import cookies.json
$B goto <target-url>
If 2FA/OTP is required: Ask the user for the code and wait.
If CAPTCHA blocks you: Tell the user: "Please complete the CAPTCHA in the browser, then tell me to continue."
Get a map of the application:
$B goto <target-url>
$B snapshot -i -a -o "$REPORT_DIR/screenshots/initial.png"
$B links # map navigation structure
$B console --errors # any errors on landing?
Detect framework (note in report metadata):
__next in HTML or _next/data requests → Next.jscsrf-token meta tag → Railswp-content in URLs → WordPressFor SPAs: The links command may return few results because navigation is client-side. Use snapshot -i to find nav elements (buttons, menu items) instead.
Visit pages systematically. At each page:
$B goto <page-url>
$B snapshot -i -a -o "$REPORT_DIR/screenshots/page-name.png"
$B console --errors
Then follow the per-page exploration checklist (see qa/references/issue-taxonomy.md):
$B viewport 375x812
$B screenshot "$REPORT_DIR/screenshots/page-mobile.png"
$B viewport 1280x720
Depth judgment: Spend more time on core features (homepage, dashboard, checkout, search) and less on secondary pages (about, terms, privacy).
Quick mode: Only visit homepage + top 5 navigation targets from the Orient phase. Skip the per-page checklist — just check: loads? Console errors? Broken links visible?
Document each issue immediately when found — don't batch them.
Two evidence tiers:
Interactive bugs (broken flows, dead buttons, form failures):
snapshot -D to show what changed$B screenshot "$REPORT_DIR/screenshots/issue-001-step-1.png"
$B click @e5
$B screenshot "$REPORT_DIR/screenshots/issue-001-result.png"
$B snapshot -D
Static bugs (typos, layout issues, missing images):
$B snapshot -i -a -o "$REPORT_DIR/screenshots/issue-002.png"
Write each issue to the report immediately using the template format from qa/templates/qa-report-template.md.
baseline.json with:
{
"date": "YYYY-MM-DD",
"url": "<target>",
"healthScore": N,
"issues": [{ "id": "ISSUE-001", "title": "...", "severity": "...", "category": "..." }],
"categoryScores": { "console": N, "links": N, ... }
}
Regression mode: After writing the report, load the baseline file. Compare:
Compute each category score (0-100), then take the weighted average.
Each category starts at 100. Deduct per finding:
| Category | Weight | |----------|--------| | Console | 15% | | Links | 10% | | Visual | 10% | | Functional | 20% | | UX | 15% | | Performance | 10% | | Content | 5% | | Accessibility | 15% |
score = Σ (category_score × weight)
Hydration failed, Text content did not match)_next/data requests in network — 404s indicate broken data fetchinggoto) — catches routing issues/wp-json/)snapshot -i for navigation — links command misses client-side routes[REDACTED] for passwords in repro steps.snapshot -C for tricky UIs. Finds clickable divs that the accessibility tree misses..gstack/qa-reports/
├── qa-report-{domain}-{YYYY-MM-DD}.md # Structured report
├── screenshots/
│ ├── initial.png # Landing page annotated screenshot
│ ├── issue-001-step-1.png # Per-issue evidence
│ ├── issue-001-result.png
│ └── ...
└── baseline.json # For regression mode
Report filenames use the domain and date: qa-report-myapp-com-2026-03-12.md
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