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.
npx skills add GktuOktay/ai-skills --skill testing-mastergit clone --depth 1 https://github.com/GktuOktay/ai-skillsWrote 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.
[](https://agentmods.dev/skills/gktuoktay/ai-skills/testing-master)<a href="https://agentmods.dev/skills/gktuoktay/ai-skills/testing-master"><img src="https://agentmods.dev/badge/skills/gktuoktay/ai-skills/testing-master/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.
<a href="https://agentmods.dev/skills/gktuoktay/ai-skills/testing-master"><img src="https://agentmods.dev/badge/skills/gktuoktay/ai-skills/testing-master.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00046 | $0.00341 |
| Opus 5.5 | $0.00018 | $0.00136 |
| Sonnet 5.5 | $0.00009 | $0.00068 |
| Haiku 4.5 | $0.00005 | $0.00034 |
Grade A, and why
testing-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 1mo 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.
What it actually says
Testing Master (QA & Automated Testing)
This skill designs and implements automated testing suites to guarantee code stability, reliability, and regression prevention.
🧪 Testing Pyramid & Strategies
1. Unit Testing
- Tools: Vitest, Jest.
- Scope: Pure functions, utilities, custom hooks, isolated components.
- Principles: AAA pattern (Arrange - Act - Assert), dependency mocking (
vi.fn()/jest.fn()).
2. Integration & Component Testing
- Tools: React Testing Library, User Event, MSW (Mock Service Worker).
- Scope: User interactions (clicks, form inputs, modal reveals) and API mocking.
- Principles: Query accessible DOM elements (
getByRole,getByText) rather than implementation details.
3. End-to-End (E2E) Testing
- Tools: Playwright, Cypress.
- Scope: Critical user journeys (Signup, Checkout, Content creation).
- Principles: Avoid flaky tests using dynamic waits (
waitForSelector) and isolated test fixtures.
Output Template
- 🎯 Testing Strategy Summary
- 📝 Production Test Code: Complete, executable test suite files.
- 🛠️ Mocking & Execution Setup: Fixtures and execution commands (
npm run test).
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.
- 1mo ago First seen · 34 lines · 46 tokens per session scan A afa9e4c18576
testing-master is a skill published in the GitHub repository GktuOktay/ai-skills (2 stars, last pushed 1mo ago), licensed MIT. It adds 46 tokens to every session and 341 once invoked, about $0.0002 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 2026-09-03.
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