Your tests fail at 4 PM Friday.
You cancel plans. Again.

Your manager asks "when will it be stable?" You don't know. Your team deploys broken code because CI is red so often they ignore it. You spend 10 hours a week debugging flaky selectors instead of building what matters.

The Test Failure Automation Kit teaches you the failure-triage method: find root causes in 30 seconds, heal broken selectors, and generate bug reports your developers actually read. The prompts are included - the method is what you keep. Get your Fridays back.

15+ Years Experience
50+ Projects Delivered
10+ Industries

"The only thing more expensive than testing
is not testing."

- Every Production Incident Report

Your AI tools write the code. Who checks it?

Test Failure Automation Kit - $9.99 founding price

Everything below, one download, until Jul 31, 2026 (then $29)

  • 01 54-page kit: 10 production-tested prompts - root cause in 30 seconds ($29 value)
  • 02 BONUS: AI-Native QA Cheat Sheet - 5 prompts that cut review time to minutes ($19 value)
  • 03 Quick Reference Card + framework integration guides - Selenium, Playwright, Cypress
Get Everything - $9.99

$48+ of material, distilled from 15 years of debugging in healthcare, fintech and e-commerce teams. 7-day money-back guarantee.

I used to stay until midnight debugging flaky login tests.

They'd fail in CI. Pass locally. Every. Single. Time.

Hardcoded waits. New selectors. Different browsers. Nothing worked.

Then one evening I fed the logs to Claude. It spotted the race condition in 30 seconds. I fixed it in 5 minutes. Went home before 9 PM for the first time that week.

That's when it clicked: AI doesn't replace you. It makes you 10x faster at the parts you hate.

15 years and 50+ projects later, I've built a failure-triage method that catches failures before you waste hours debugging - and the exact prompts I use in production to run it. I don't hand you prompts and wish you luck. I teach you how to write them.

Now you can learn it too.

One kit. Three problems solved. Friday evening free.

You spend 10 hours a week debugging test failures. What if AI could do it in 10 minutes?

Go Deeper

Testing AI Applications cover
Available Now

Level 1 - Understand

Testing AI Applications

$69

Validate LLM outputs, handle non-deterministic behavior, detect hallucinations, and build confidence in AI-powered features. 9 in-depth chapters.

  • Hallucination detection patterns that catch drift before users do
  • Output validation frameworks for non-deterministic AI responses
  • Prompt engineering for QA - write prompts that expose real bugs
  • Model selection strategy - pick the right AI for each testing task

7-day money-back guarantee. Read it, try it, decide.

Get L1 - $69

Instant PDF download via Gumroad.

AI-Powered Test Automation cover
Available Now

Level 2 - Apply

AI-Powered Test Automation

$99

Let AI write your tests, maintain your selectors, and triage failures automatically. Production-ready patterns with real code. 8 practical chapters.

  • AI test generation - from user stories to running tests in minutes
  • Self-healing selectors that survive UI redesigns
  • Intelligent failure triage - classify bugs vs flaky tests automatically
  • Metrics and KPIs to measure your AI testing ROI

7-day money-back guarantee. If the patterns don't work in your stack - full refund.

Get L2 - $99

Instant PDF download via Gumroad.

Enterprise AI Testing Infrastructure cover
Available Now

Level 3 - Scale

Enterprise AI Testing Infrastructure

$169

Scale AI testing across teams. Prioritization, production monitoring, ROI measurement, and org design. 10 comprehensive chapters plus appendix.

  • Root cause analysis at scale - AI-powered RCA across thousands of tests
  • AI-testing maturity model - score your org across six dimensions
  • Team blueprints - centralized vs embedded vs platform, with salary bands
  • MCP server integration - connect AI to your testing infrastructure

7-day money-back guarantee. Enterprise-grade content, zero risk.

Get L3 - $169

Instant PDF download via Gumroad.

L0 cover L1 cover L2 cover L3 cover
Save $48 - best deal

Complete AI-Native QA Bundle

Starter Kit$29
L1 Understand$69
L2 Apply$99
L3 Scale$169
Exclusive Prompt Library$49
Lifetime Updates$97
Total value$512

$299

Save $48 vs buying each level separately

7-day money-back guarantee on the entire bundle. Zero risk.

Get the Bundle - $299

Prices may be subject to local taxes.

"The cloud is just someone else's computer,
running up someone else's... wait, no, that's YOUR bill."

- CFO's Nightmare

Your app ships AI features now. Test them like it matters.

Series 1 fixes your failing tests. Series 2 and 3 cover what comes next: testing LLM-powered features and securing them before someone else finds the holes.

Series 2 - Testing Non-Deterministic AI

Level 0 - Start Here

5-Minute LLM Test Checklist

$9.99

Your app calls an LLM. Same input, different output every time. "Looks fine" is not a test plan - this checklist is: 25 checks you can run before lunch.

  • Catch hallucinations, format drift, and silent API changes
  • Works for chatbots, RAG apps, and AI-powered features
  • First failing check in 5 minutes - no framework setup

7-day money-back guarantee.

Get the Checklist - $9.99

Full series: L1 Understand ($69) · L2 Apply ($99) · L3 Scale ($169) · Bundle $299

Series 3 - AI Security Testing

Level 0 - Start Here

Prompt Injection Test Pack

$29

"Our AI is secure because... we haven't tested it." Run your first prompt injection, data leakage, and jailbreak scan today - before every deploy, not after the incident.

  • Ready-to-run injection and jailbreak test payloads
  • Data leakage scans for RAG and agent pipelines
  • Works with OpenAI, Anthropic, and local models

7-day money-back guarantee.

Get the Test Pack - $29

Full series: L1 Understand ($69) · L2 Apply ($99) · L3 Scale ($169) · Bundle $299

Five reviews, and the numbers behind them

These books teach you to distrust unverified output. Same rule applies to sales pages - so here is only what you can check:

10

Engineers have paid for these books so far. Early days - that's the honest number, not "10,000+ students".

0

Refunds requested. Every book carries a 7-day money-back guarantee. Nobody has used it yet.

5

Written reviews, all five stars, all on the Test Failure Automation Kit. Quoted below word for word - verify them yourself on the Gumroad page.

"An absolute masterclass for QA engineers! This isn't just theory - it's a hands-on roadmap that delivers actual technical depth for AI-driven testing."

"This is one of those rare ebooks that actually respects your time. No fluff. No 'AI will fix everything' fairy tales."

"Solutions presented here are comprehensive and well thought through. Presented knowledge comes from proven experience, not theory."

"Honestly, I didn't expect much, but this turned out to be super useful. It's straight to the point, no fluff, just real problems and solutions."

"After the first evening with it, I'm honestly surprised by how well structured it is."

Every quote above is checkable on the Gumroad product page

So compare it yourself

No quotes to show you, so here is the boring version instead - how these books stack up against a Udemy course, a $4,200 live cohort, and the ISTQB certificate. Including the two rows where they lose.

  • Wins What survives the next model release. The method - failure taxonomies, judge patterns, the layer hierarchy - is organised by how fast each part changes. Screen recordings age with every release; this does not.
  • Loses Live feedback and accountability. None built in. You read it, you build it. A cohort gives you an instructor looking at your actual work; a book cannot.
  • Loses A credential recruiters filter on. No certificate. ISTQB gives you the line on your profile that HR screens for. What you get here is a working eval in your repo.

See the full comparison - paid, free, and prompt packs

What you'll do in the next 10 minutes

01

Download the kit

Instant PDF delivery via Gumroad. Open it. 2 minutes.

02

Copy a prompt

Pick the one that matches your problem. Self-healing, root cause, or bug reports. 1 minute.

03

Paste it with your failing test

Claude, GPT, Copilot, Cursor - whichever you already use. Get the root cause in 30 seconds. Ship the fix in 5 minutes.

Total time: 10 minutes. What you used to spend: 2 hours minimum.

"It's not a bug, it's an undocumented feature.
Actually, it's definitely a bug."

- Git Blame Champion
Arkadiusz Mastalerz

Arkadiusz Mastalerz

Senior Test Automation Engineer & AI Enthusiast

15 years debugging flaky tests in healthcare, fintech, government, and e-commerce. 50+ projects across 10+ industries. The tech stacks change. The pain points don't. These guides contain the patterns that actually work - so you don't have to learn them the hard way.

Right tool for the job, not the one with the best marketing. Java, TypeScript, Python, or GoLang - the language serves your problem. Not the other way around.

Java TypeScript Python GoLang Playwright Selenium Appium REST GraphQL CI/CD

Open Source

Community-driven projects. Use them, fork them, contribute.

npm package

LangFlow MCP Server

1,100+ npm downloads

MCP server giving AI assistants full access to LangFlow workflow automation. 93 tools. Create, manage, and execute AI workflows from any MCP-compatible client.

Security Skills

Claude Code Skills

Essential security skills for Claude Code. Scans for malicious MCP servers, exposed API keys, and supply chain attacks. Covers OWASP Agentic Top 10.

macOS Utility

NoBrainer Res

macOS display resolution switcher. SwiftUI + CoreGraphics. Open source, free forever.

Need hands-on help?

You've tried fixing it yourself. Your team is stuck. You need someone who's solved this exact problem before.

AI Test Strategy

Your team argues about which AI tool to use. Nothing gets shipped.

Walk away with a clear roadmap: where AI cuts your debugging time and where it wastes money. Decision made in 1 week, not 6 months.

Framework Audit

Your test suite takes 4 hours to run. Developers ignore failures.

Find the 3 tests causing 80% of your failures. Cut runtime. Make your team trust CI again. Prioritised action list included.

Custom Automation

Off-the-shelf tools don't fit your legacy stack.

Custom framework built for your constraints. No vendor lock-in. Your team can maintain it after I leave.

Discovery Call

Free

30 minutes. Honest assessment of what's worth automating and what's not. No pitch, no pressure.

Project Engagement

Custom quote

Full-scope: strategy, implementation, training, handover. Scoped to your timeline. You own everything.

Limited availability - I take on 2-3 engagements per quarter.

Book a Free Discovery Call

Response within 24 hours.

"The difference between theory and practice
is smaller in theory than in practice."

- Anonymous Engineer
Available Now

Test Failure Automation Kit

Self-healing selectors. AI root cause analysis in under 3 minutes. Automatic bug reports. 54-page guide with 10 production-tested prompts. Works with any framework, any language.

  • Paste a failed test - get root cause in 30 seconds
  • 10 prompts plus the method behind them - runs on Claude, GPT, Copilot, whatever ships next
  • Case study: 95% reduction in debugging time (illustrative composite)
  • Your first result in 30 minutes - $9.99 founding price

Questions you're probably asking

What AI tools do I need?

Works with any AI you already use - Claude, ChatGPT, Copilot, Cursor today, whatever ships next. Free tier is enough for 90% of use cases. If you can paste text into an AI chat, you can use this kit.

I use Selenium / Cypress / Playwright - will this work?

Yes. Works with Selenium, Cypress, Playwright, Appium, TestCafe, WebdriverIO - any framework that produces error logs. The prompts analyse logs, not framework internals.

Who is this for?

QA engineers, SDETs, developers who write tests, and anyone moving into test automation. If you work with test code and want AI to handle the tedious parts - debugging, root cause analysis, bug reports - this is for you. Whether you're scaling an existing framework or building your first one.

How is this different from just using ChatGPT directly?

You absolutely can. Most people do - and waste 2 hours getting generic answers that don't work in production. The gap between "AI-generated test advice" and "patterns that survive real CI/CD pipelines" is massive. This kit is built on 15 years of hands-on automation across 50+ projects. Theory and practice rarely match - the method closes that gap because it comes from real failures, real fixes, and real production environments. You're not paying for prompts. You're paying to learn how to write them - and to skip the trial-and-error that took years to figure out.

What if it doesn't work for me?

7-day money-back guarantee. No questions asked. Email arkadiusz@nobrainer.tech and you get a full refund. No awkward conversations. No hoops.

Should I get the bundle or buy individually?

The bundle is $299 - all four levels plus two exclusive bonuses worth $146. Total value: $512. You save $48 compared to buying each level separately at today's founding prices. Every product has a 7-day money-back guarantee, so there's zero risk. Start with the Starter Kit ($9.99 founding price) to test the approach, then upgrade.

AI changes every month. Won't this be outdated tomorrow?

Valid concern - and exactly why the kit is built around principles, not specific model versions. The prompts work with Claude, GPT, Copilot, and whatever drops next, because they target how you structure requests to AI, not which button you click. The model selection chapter teaches you to evaluate any new model in 5 minutes. When the paradigm shifts, subscribers get updated guidance first. Existing buyers always get a significant discount on new editions. The AI world moves fast. Your investment doesn't expire.

Are more series coming?

Three series are available now: AI-Native QA (Series 1), Testing Non-Deterministic AI (Series 2), and AI Security Testing (Series 3). More are in production: MCP Server Development, AI Agents for Testing, RAG Agents, Multi-Agent Systems, Playwright Enterprise, and CI/CD for QA. Subscribe on Gumroad to get notified.

Still debugging test failures manually?

No fake countdown timers. No "only 3 left" nonsense. The founding price is real: $9.99 until Jul 31, 2026, then $29. A kit that saves you 10+ hours a week - or keep debugging at 11 PM. Your call.

Get the Kit - $9.99

Instant PDF download via Gumroad. 7-day money-back guarantee. No questions asked.