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#testing

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01 Jul 23, 2026 9 min read

Evals for Regular People: How Do You Know Your Prompt Works at All?

A minimal prompt evaluation process without a framework: a golden set of ten cases, binary criteria, an A/B comparison table, and three traps that ruin the measurement.

ai prompt-engineering
Grzegorz Holak
02 Jul 22, 2026 9 min read

Test Debt: How to Measure It, Show It to the Business, and Pay It Down Without Stopping the Team

An operational definition of test debt, six measurable signals, pricing in hours and risk, and a repayment strategy that does not require halting delivery for a fix-it sprint.

qa test-debt
Grzegorz Holak
03 Jul 15, 2026 9 min read

The Test Pyramid in 2026: What's Left of It After a Decade of Microservices and Agent-Written E2E

Which floors of the classic test pyramid still make sense, where the drawing plainly lies, and what a healthy test distribution looks like in a typical web project - no dogma, just heuristics.

qa testing
Grzegorz Holak
04 Jul 8, 2026 9 min read

Risk-Based Testing in Practice: How to Decide What NOT to Test

A simple impact-times-probability matrix, a real release walkthrough where half the scope shipped without tests, and how to communicate those decisions to the business.

qa risk
Grzegorz Holak
05 Jun 18, 2026 18 min read

When to automate tests, and when automation is a waste of time

Test automation isn't always the right answer. Here's when it's worth automating, what to leave manual, and how to make conscious QA decisions.

qa automation
Grzegorz Holak