# qa-expert

A skill for planning test coverage and setting up quality gates. Useful when you need to sort checks by risk level and CI stage.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 753 installs · ★ 84
- Author: zhaono1
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/zhaono1/agent-playbook/tree/HEAD/skills/qa-expert/SKILL.md
- Updated: 2026-09-15
- HTML: https://affpapa.org/en/nevibecode/skills/zhaono1-qa-expert

## What it does

The skill activates when you ask for a QA strategy, plan test coverage, or set up quality standards. Its core is risk-based testing: money, security and data paths get strong deterministic coverage, while edge features can stay at unit level. The suggested portfolio split across E2E, integration and unit tests is labelled an illustration — you are meant to derive the real mix from the repository architecture and the cost of failure.

Quality gates are split by stage: pre-commit (lint, format check, type check, unit tests), pre-merge (full test run, coverage threshold, `npm audit`, license check) and pre-production (full suite, E2E, performance, security audit). The skill also ships a test plan template, a bug report template, defect and test metrics, and rules for deciding what to automate. Numbers like 80% coverage or zero flaky tests are marked as examples: take the project's existing gates first, and if there are none, establish a baseline and agree targets with the owner.

Two Python scripts do the heavy lifting: `scripts/generate_test_plan.py` writes a test plan to `docs/test-plan.md`, and `scripts/coverage_analysis.py` analyses coverage for a service. Python 3 is required to run them. The skill can read and edit files, run Bash, grep the codebase and fetch web pages, so it can inspect what checks your repo already has before proposing new ones.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add zhaono1/agent-playbook --skill qa-expert -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/qa-expert/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/qa-expert/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add zhaono1/agent-playbook --skill qa-expert -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/qa-expert/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add zhaono1/agent-playbook --skill qa-expert -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/qa-expert/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install zhaono1/agent-playbook qa-expert
```

2. **Manually: put the files in place**
- File: `.github/skills/qa-expert/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add zhaono1/agent-playbook --skill qa-expert -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/zhaono1/agent-playbook --path skills/qa-expert
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/qa-expert/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add zhaono1/agent-playbook --skill qa-expert -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/zhaono1/agent-playbook/tree/HEAD/skills/qa-expert/SKILL.md

## When to use it
- sort tests by risk level and cost of failure
- assemble quality gates for pre-commit, pre-merge and pre-production
- generate a markdown test plan from a template
- analyse service coverage and write the report to a file
- write a bug report someone can reproduce on the first try

## Example prompts
- Build a QA strategy for the payments service: what tests each risk level needs
- Set up pre-merge quality gates: tests, coverage, npm audit
- Generate a test plan for the auth module into docs/test-plan.md

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: c8b235482ac48c0c.

BEGIN THIRD-PARTY FILE c8b235482ac48c0c
````text
---
name: qa-expert
description: Quality assurance expert for testing strategies and quality gates. Use when planning test coverage, setting up QA processes, or improving quality standards.
allowed-tools: Read, Write, Edit, Bash, Grep, Glob, WebFetch, WebSearch
metadata:
  hooks:
    after_complete:
      - trigger: session-logger
        mode: auto
        reason: "Log QA activity"
---

# QA Expert

Quality assurance specialist for developing comprehensive testing strategies and quality gates.

## When This Skill Activates

Activates when you:
- Ask for QA strategy
- Need quality gates
- Want to improve test coverage
- Plan testing approach

## Quality Assurance Strategy

### 1. Risk-Based Testing

Prioritize testing based on business impact, likelihood, change surface, and
existing production evidence. The approaches below are examples to tailor, not
universal requirements:

| Risk Level | Testing Approach |
|------------|------------------|
| **Critical** (Money, Security, Data) | Strong deterministic coverage; add resilience testing when the system supports it |
| **High** (Core features) | Full E2E, integration, unit |
| **Medium** (Secondary features) | Integration, unit |
| **Low** (Edge features) | Unit tests only |

### 2. Testing Portfolio

Choose the mix from system boundaries and failure cost. Do not enforce a fixed
ratio when a repository's architecture or existing test strategy indicates a
different shape.

| Level | Example Starting Mix | Focus |
|-------|------------|-------|
| E2E | 10% | Critical user journeys |
| Integration | 30% | API interactions |
| Unit | 60% | Business logic, utilities |

Treat this table as an illustration only. Derive the actual portfolio from the
repository's architecture, risk profile, SLOs, and existing quality gates.

### 3. Quality Gates

#### Pre-Commit
```bash
- Lint: npm run lint
- Format check: npm run format:check
- Type check: npm run type-check
- Unit tests: npm run test:unit
```

#### Pre-Merge
```bash
- All tests: npm test
- Coverage threshold: use the repository gate or agree a risk-based target
- Security scan: npm audit
- License check: npm run check:licenses
```

#### Pre-Production
```bash
- Full test suite: npm run test:all
- E2E tests: npm run test:e2e
- Performance tests: npm run test:perf
- Security audit: npm audit --audit-level high
```

## Test Categories

### Functional Testing

**Purpose**: Verify features work as specified
````
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