A testing specialist for writing tests, planning test strategies, and building test automation. It covers unit, integration, end-to-end, coverage, performance, and security testing.

Use it to write unit and end-to-end tests, design a test strategy or automation framework, examine coverage, and plan performance or security tests.

It helps organize testing work across different levels and goals instead of treating every test as the same kind.

How Mentor-Wizard/mentor-wizard-webapp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to Mentor-Wizard/mentor-wizard-webapp. 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/Mentor-Wizard/mentor-wizard-webapp/develop/.claude/skills/test-master/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/Mentor-Wizard/mentor-wizard-webapp

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/skills/mentor-wizard/mentor-wizard-webapp/test-master.svg)](https://agentmods.dev/skills/mentor-wizard/mentor-wizard-webapp/test-master)

Your own site

<a href="https://agentmods.dev/skills/mentor-wizard/mentor-wizard-webapp/test-master"><img src="https://agentmods.dev/badge/skills/mentor-wizard/mentor-wizard-webapp/test-master.svg" alt="Measured on agentmods" height="20"></a>

Per session 105 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 987 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 unknown 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	$0.00105	$0.00987
Opus 5	$0.00053	$0.00494
Sonnet 5	$0.00021	$0.00197
Haiku 4.5	$0.00011	$0.00099

Measured 2d ago against content hash 7eff01f75315, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

test-master 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 2d 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/skills/test-master/SKILL.md · 108 lines

The source is not reproduced here

No licence file

Read it on GitHub

Files

What ships with it

10 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

2d ago First seen · 108 lines · 105 tokens per session scan A 7eff01f75315

Subscribe to this mod's changes

test-master is a skill published in the GitHub repository Mentor-Wizard/mentor-wizard-webapp (10 stars, last pushed 7d ago), with no licence file. It adds 105 tokens to every session and 987 once invoked, about $0.0005 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 2026-09-04.

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mentor-wizard-webapp: Skill for Claude Code