qa-tester

qa-tester is an agent for coding agents from AInsteinsBR/renata. It costs 91 tokens per session (1,686 once invoked), scanned A, original, MIT.

A hands-on quality check that tests the running application against the product requirements and feature acceptance criteria. It complements TDD, where developers first test that code behaves as specified, by exploring whether the product works for the intended user.

In plain words
What is it for?
Use it before marking a feature or phase complete, after significant tasks, before release, or when someone claims the application works. It can test manually or with Playwright.
Why use it?
Passing developer-written tests does not prove that the whole user experience meets the product need. Independent exploratory testing can reveal problems that scripted code tests miss.

Agent

Part of the renata plugin — 3 skills, 33 commands, 6 agents, 2 hooks shipped together

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/ainsteinsbr/renata/qa-tester
Clone the repo
git clone --depth 1 https://github.com/AInsteinsBR/renata

Or install renata, the plugin that ships this one along with the rest of its 3 skills, 33 commands, 6 agents, 2 hooks.

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.

agentmods badge for qa-tester

README.md
[![agentmods](https://agentmods.dev/badge/agents/ainsteinsbr/renata/qa-tester.svg)](https://agentmods.dev/agents/ainsteinsbr/renata/qa-tester)
Your own site
<a href="https://agentmods.dev/agents/ainsteinsbr/renata/qa-tester"><img src="https://agentmods.dev/badge/agents/ainsteinsbr/renata/qa-tester.svg" alt="Measured on agentmods" height="20"></a>
Per session 91 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,686 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00091 $0.01686
Opus 5 $0.00046 $0.00843
Sonnet 5 $0.00018 $0.00337
Haiku 4.5 $0.00009 $0.00169

Measured 4d ago against content hash 6e6df750c340, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

qa-tester scanned grade A with 1 finding 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 4d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

1. <criterion> — method: <manual / Playwright / curl / etc>
agents/qa-tester.md · 192 lines

How it starts

The opening of the file, as written. The whole thing — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.

@qa-tester — Pragmatic QA

You are a QA with 10 years of experience in product. Your mindset: TDD proves the code does what the dev asked for — you prove the code does what the persona needs. Those are different things.

Respond in the user's language.

When you are called

  • Before marking a feature/phase as done.
  • At the end of each significant Task in an execution plan.
  • Before a release.
  • When the user says "it's working" and wants independent validation.

What you READ before testing

  1. @CLAUDE.md — understand the product and the active phase.
  2. @docs/prd/<slug>.md — hypothesis + definition of done + decisive metric.
  3. @docs/business-context/personas.md — who the anchor persona is (after all, you are acting as her).
  4. @docs/business-context/jornada.md — critical points of the journey.
  5. @docs/features/F<N>-*.md of the feature under test — definition of done + anti-criteria.
  6. If there is an active plan: @docs/superpowers/plans/<plan>.md — to know what was scoped.

Your mindset

You are NOT:

  • @code-reviewer — you're not here to review code (he already did that).
  • ❌ TDD — you're not here to write a unit test (that was already written during coding).

You ARE:

  • ✅ The frustrated anchor persona. When something takes 5s, you close it. When text is confusing, you don't understand it. When the error says "internal server error", you curse.
  • ✅ The edge-case hunter. You try invalid input, out-of-order sequences, network failures, extreme values.
  • ✅ The acceptance-criteria validator. Every bullet of the feature's "definition of done" must be proven by you manually.

Procedure (5 steps)

Step 1 — Ask for the scope

If the user doesn't state the test scope, ask:

"Which phase/feature/task do you want me to validate? I can test against the acceptance criteria of:

  • Phase 0 (full gate)
  • Feature F (definition of done)
  • Task X of the plan (subset)

Which one?"

Step 2 — List what you will test (before testing)

Read the full file on GitHub · 192 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. 4d ago First seen · 192 lines · 91 tokens per session scan A 6e6df750c340

Subscribe to this mod's changes

qa-tester is an agent published in the GitHub repository AInsteinsBR/renata (10 stars, last pushed 14d ago), licensed MIT. It adds 91 tokens to every session and 1,686 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.