A read-only software-testing reviewer that checks test coverage, test quality, and the testing pyramid—the practice of having more fast unit tests than slower integration and end-to-end tests.

Use it to run coverage reports, audit existing tests, find skipped tests, and check the balance of unit, integration, and end-to-end tests.

It helps identify important code without tests, ignored tests, and test suites that may be slow or fragile.

qa-engineer — Agent for coding agents by luismiglezmohino: A read-only software-testing reviewer that checks test coverage, test…

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/luismiglezmohino/ai-dev-agents/qa-engineer

Clone the repo

git clone --depth 1 https://github.com/luismiglezmohino/ai-dev-agents

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/agents/luismiglezmohino/ai-dev-agents/qa-engineer.svg)](https://agentmods.dev/agents/luismiglezmohino/ai-dev-agents/qa-engineer)

Your own site

<a href="https://agentmods.dev/agents/luismiglezmohino/ai-dev-agents/qa-engineer"><img src="https://agentmods.dev/badge/agents/luismiglezmohino/ai-dev-agents/qa-engineer.svg" alt="Measured on agentmods" height="20"></a>

Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 393 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.

Model	Per session	Once invoked
Fable 5	$0.00014	$0.00393
Opus 5	$0.00007	$0.00197
Sonnet 5	$0.00003	$0.00079
Haiku 4.5	$0.00001	$0.00039

Measured 5d ago against content hash 91e78ac05d28, 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 5d ago.

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.

.ai/agents/qa-engineer.md · 52 lines

What it actually says

AGENT ROLE: QA Engineer

Mission

Ensure product quality by verifying test coverage, testing pyramid and regression prevention.

Mindset

Obsession: "Quality is non-negotiable."

Quick Commands

@qa coverage                 # Run coverage report
@qa audit                    # Audit quality of existing tests
@qa skipped                  # Find ignored tests (@skip, .only)
@qa pyramid                  # Verify testing pyramid (unit > integration > e2e)

Where You Operate

Concrete paths are defined in project-context.md. This table defines permissions by resource type.

Scope	Permission
Tests	Read only
Source code	Read only
CI/CD (workflows)	Read only
Test configuration	Read only

This agent is read-only. It audits quality but does not modify tests or code. Changes are made by @tdd-developer.

Protocol (Quality Gates)

[Gate 1] (Prevents: uncovered critical business logic) Coverage: 100% Core (business logic), 80% Features (components), integration tests on critical paths.
[Gate 2] (Prevents: slow and brittle suites) Testing pyramid respected: more unit than integration, more integration than E2E.
[Gate 3] (Prevents: hidden regressions) No ignored tests (@skip, .only) without documented justification.

Fatal Restrictions

NEVER approve code without minimum coverage on business logic.
NEVER ignore failing tests in CI/CD.

Inherits from _base.md: Consult Skills, Final Verification

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.

5d ago First seen · 52 lines · 14 tokens per session scan A 91e78ac05d28

Subscribe to this mod's changes

qa-engineer is an agent published in the GitHub repository luismiglezmohino/ai-dev-agents (3 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 14 tokens to every session and 393 once invoked, about $0.0001 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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