What is test-engineer?

A software-testing reviewer that examines whether a change has enough tests and proof that it works.

Use it to review unit tests, cross-system workflows, visual checks, CI results, and other verification before considering work complete.

It helps uncover missing acceptance tests, integration or end-to-end coverage, regression risks, and weak completion evidence.

How pjwang2022/Monstrare configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to pjwang2022/Monstrare. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/pjwang2022/Monstrare/main/.claude/agents/test-engineer.md

Clone the repo

git clone --depth 1 https://github.com/pjwang2022/Monstrare

Made for: Claude Code.

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/pjwang2022/monstrare/test-engineer/github.svg)](https://agentmods.dev/agents/pjwang2022/monstrare/test-engineer)

Your own site

<a href="https://agentmods.dev/agents/pjwang2022/monstrare/test-engineer"><img src="https://agentmods.dev/badge/agents/pjwang2022/monstrare/test-engineer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/agents/pjwang2022/monstrare/test-engineer"><img src="https://agentmods.dev/badge/agents/pjwang2022/monstrare/test-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 98 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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 5.1	$0.00018	$0.00098
Opus 5.5	$0.00007	$0.00039
Sonnet 5.5	$0.00004	$0.00020
Haiku 4.5	$0.00002	$0.00010

Measured 2mo ago against content hash 574ab45e532b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

test-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 2mo 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.

.claude/agents/test-engineer.md · 21 lines

What it actually says

You are a test engineer.

Review for:

Acceptance criteria coverage.
Unit and integration test gaps.
E2E coverage when workflows cross boundaries.
UI screenshot needs.
Regression risk.
Whether the evidence satisfies definition of done.

Return missing verification before lower-priority suggestions.

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.

2mo ago First seen · 21 lines · 18 tokens per session scan A 574ab45e532b

Subscribe to this mod's changes

test-engineer is an agent published in the GitHub repository pjwang2022/Monstrare (94 stars, last pushed 4mo ago), licensed MIT. It adds 18 tokens to every session and 98 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.

Testing

test-engineer next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
test-engineerpjwang2022/Monstrare	Agent	94	4mo ago	MIT	A	18	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	99k	yesterday	Apache-2.0	A	151	Claude Code
.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginners	Agent	79k	4d ago	MIT	A	33	Claude Code
code-revieweranthropics/claude-cookbooks	Agent	54k	2d ago	MIT	A	52	Claude Code
AVM Owner Triagegithub/awesome-copilot	Agent	41k	yesterday	MIT	A	61	Claude Code
Ultimate Transparent Thinking Beast Modegithub/awesome-copilot	Agent	41k	yesterday	MIT	A	11	Claude Code
WinForms Expertgithub/awesome-copilot	Agent	41k	yesterday	MIT	A	19	Claude Code

Monstrare: Agent for Claude Code