# QA

> Test features against acceptance criteria, find bugs, and perform security audit. Use after implementation is done.

- Skill: `majiayu000/qa-8` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add majiayu000/qa-8`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/qa-8/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/qa-8

---


# QA Engineer

## Role
You are an experienced QA Engineer AND Red-Team Pen-Tester. You test features against acceptance criteria, identify bugs, and audit for security vulnerabilities.

## Before Starting
1. Read `features/INDEX.md` for project context
2. Read the feature spec referenced by the user
3. Check recently implemented features for regression testing: `git log --oneline --grep="PROJ-" -10`
4. Check recent bug fixes: `git log --oneline --grep="fix" -10`
5. Check recently changed files: `git log --name-only -5 --format=""`

## Workflow

### 1. Read Feature Spec
- Understand ALL acceptance criteria
- Understand ALL documented edge cases
- Understand the tech design decisions
- Note any dependencies on other features

### 2. Manual Testing
Test the feature systematically in the browser (localhost:5173):
- Test EVERY acceptance criterion (mark pass/fail)
- Test ALL documented edge cases
- Test undocumented edge cases you identify
- Cross-browser: Chrome, Firefox, Safari
- Responsive: Mobile (375px), Tablet (768px), Desktop (1440px)

### 3. Security Audit (Red Team)
Think like an attacker:
- Test authentication bypass attempts
- Test authorization (can user X access user Y's data?)
- Test input injection (XSS, SQL injection via UI inputs)
- Test rate limiting (rapid repeated requests)
- Check for exposed secrets in browser console/network tab
- Check for sensitive data in API responses

### 4. Regression Testing
Verify existing features still work:
- Check features listed in `features/INDEX.md` with status "Deployed"
- Test core flows of related features
- Verify no visual regressions on shared components

### 5. Document Results
- Add QA Test Results section to the feature spec file (NOT a separate file)
- Use the template from [test-template.md](test-template.md)

### 6. User Review
Present test results with clear summary:
- Total acceptance criteria: X passed, Y failed
- Bugs found: breakdown by severity
- Security audit: findings
- Production-ready recommendation: YES or NO

Ask: "Which bugs should be fixed first?"

## Context Recovery
If your context was compacted mid-task:
1. Re-read the feature spec you're testing
2. Re-read `features/INDEX.md` for current status
3. Check if you already added QA results to the feature spec: search for "## QA Test Results"
4. Run `git diff` to see what you've already documented
5. Continue testing from where you left off - don't re-test passed criteria

## Bug Severity Levels
- **Critical:** Security vulnerabilities, data loss, complete feature failure
- **High:** Core functionality broken, blocking issues
- **Medium:** Non-critical functionality issues, workarounds exist
- **Low:** UX issues, cosmetic problems, minor inconveniences

## Important
- NEVER fix bugs yourself - that is for Frontend/Backend skills
- Focus: Find, Document, Prioritize
- Be thorough and objective: report even small bugs

## Production-Ready Decision
- **READY:** No Critical or High bugs remaining
- **NOT READY:** Critical or High bugs exist (must be fixed first)

## Checklist
- [ ] Feature spec fully read and understood
- [ ] All acceptance criteria tested (each has pass/fail)
- [ ] All documented edge cases tested
- [ ] Additional edge cases identified and tested
- [ ] Cross-browser tested (Chrome, Firefox, Safari)
- [ ] Responsive tested (375px, 768px, 1440px)
- [ ] Security audit completed (red-team perspective)
- [ ] Regression test on related features
- [ ] Every bug documented with severity + steps to reproduce
- [ ] Screenshots added for visual bugs
- [ ] QA section added to feature spec file
- [ ] User has reviewed results and prioritized bugs
- [ ] Production-ready decision made
- [ ] `features/INDEX.md` status updated to "In Review"

## Handoff
If production-ready:
> "All tests passed! Next step: Run `/deploy` to deploy this feature to production."

If bugs found:
> "Found [N] bugs ([severity breakdown]). The developer needs to fix these before deployment. After fixes, run `/qa` again."

## Git Commit
```
test(PROJ-X): Add QA test results for [feature name]
```