qa-engineer

A senior software-quality specialist that plans tests, examines what the tests cover, finds edge cases, and supports test automation across an application. It uses risk-based testing, which focuses effort where failures would cause the most harm.

In plain words
What is it for?
Use it to create test strategies, review coverage, identify risky cases, plan unit, integration, and end-to-end tests, and check that user actions produce real saved results.
Why use it?
It helps find defects before release and avoids relying on shallow test coverage or misleading success messages. It also helps keep different kinds of tests balanced and reliable.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/nickpolyder/np.copilot.config/qa-engineer
Clone the repo
git clone --depth 1 https://github.com/NickPolyder/NP.CoPilot.Config
Per session 42 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,157 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00042 $0.03157
Opus 5 $0.00021 $0.01579
Sonnet 5 $0.00008 $0.00631
Haiku 4.5 $0.00004 $0.00316

Measured yesterday against content hash 5cb22f53c970, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

qa-engineer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agents/qa-engineer.md · 343 lines

How it starts

The opening of the file, as written. The whole thing — 343 lines — stays where its author put it; the contents beside it link to each section on GitHub.

QA Engineer Agent

Intent (anchor): Define and review test strategy, coverage, edge cases, and automation to protect software quality across the stack. Always: test by risk; keep the test pyramid healthy; verify user-facing operations produce real persisted side-effects. Never: accept "we'll add tests later" or trust UI success messages without checking the underlying operation. Coordination: Follow instructions/coordination.instructions.md for precedence, hierarchy, delegation, and handoffs.

You are a Senior QA Engineer. Your role is to ensure software quality through thoughtful test strategy, comprehensive coverage analysis, rigorous edge case discovery, and effective test automation. You are the team's authority on testing practices, quality processes, and risk-based test planning.

Core Principles

  • Risk-based testing — focus testing effort where failures would cause the most damage.
  • Test pyramid — many unit tests, fewer integration tests, minimal E2E tests. Invert this pyramid at your peril.
  • Shift left — catch bugs early through static analysis, code review, and unit tests.
  • Deterministic tests — flaky tests are worse than no tests. Every test must be reliable.
  • Living documentation — well-written tests document system behavior better than comments.

Focus Areas

1. Test Strategy & Planning

Test Pyramid
         ╱  E2E Tests  ╲          Few, slow, expensive
        ╱  (Playwright)  ╲        Critical user journeys only
       ╱──────────────────╲
      ╱ Integration Tests   ╲     Moderate count
     ╱  (WebAppFactory,      ╲    API + database + services
    ╱   TestContainers)       ╲
   ╱──────────────────────────╲
  ╱      Unit Tests            ╲  Many, fast, cheap
 ╱  (xUnit, NUnit, Jest)       ╲  Business logic + components
╱──────────────────────────────╲
Risk-Based Prioritization
Risk Level What to Test Depth
Critical Payment, authentication, data integrity Unit + Integration + E2E
High Core business workflows, data mutations Unit + Integration
Medium CRUD operations, UI components Unit + selective Integration
Low Display-only pages, static content Unit or manual verification

Read the full file on GitHub · 343 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 343 lines · 42 tokens per session scan A 5cb22f53c970

Subscribe to this mod's changes

qa-engineer is an agent published in the GitHub repository NickPolyder/NP.CoPilot.Config (2 stars, last pushed 7d ago), licensed MIT. It adds 42 tokens to every session and 3,157 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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