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#qa

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01 Jul 29, 2026 9 min read

A Tester in Code Review: What You Can Contribute Even If You Don't Write Code Every Day

What a tester should look for in submitted changes, a checklist for your first reviews, and a plan for joining the process without stepping on developers' toes or slowing the team down.

qa code-review
Grzegorz Holak
02 Jul 24, 2026 9 min read

AI for Flaky Test Analysis: From CI Chaos to a List of Root Causes

A workflow where an agent collects CI run history, groups failures by error signatures, classifies the root causes of flaky tests, and sets the order of fixes.

ai qa
Grzegorz Holak
03 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
04 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
05 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
06 Jul 14, 2026 14 min read

3 anti-patterns that destroy QA credibility

The series finale. Overloaded dashboards, numbers without context and jargon at the table with business. Three sins of quality reporting, all practiced first-hand, and a way out of each. Article 9 of 9.

qa metrics
Filip Barszcz
07 Jul 10, 2026 9 min read

An Agent Fixes E2E Tests: A Playwright + Claude Code Workflow Step by Step

How to build a workflow where an agent diagnoses failed e2e tests and opens a PR with a fix - plus the four agent mistake patterns you need to know before you trust it.

ai qa
Grzegorz Holak
08 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
09 Jul 7, 2026 13 min read

Storytelling with metrics - how to turn a table into an argument

The same data can put a room to sleep or trigger a decision. The inverted-pyramid skeleton, techniques for translating numbers into business language, a narrative generator and four ready-made templates. Article 8 of 9.

qa metrics
Filip Barszcz
10 Jul 3, 2026 16 min read

Is it worth growing in QA if you 'already know how to test'?

Growth in QA isn't just automation. It's better understanding of the product, risk, technology, business and how a team works together.

qa growth
Grzegorz Holak
11 Jul 2, 2026 17 min read

Why QA can't stand still while the product and team move forward

Quality assurance must evolve with the product, the technology and the team. Here's why old QA approaches stop working as systems grow.

qa process
Grzegorz Holak
12 Jul 1, 2026 15 min read

Continuous growth in QA: curse, necessity, or real gain?

Continuous growth in QA can be a competitive edge - or a source of pressure and exhaustion. Here's how to grow deliberately, without chaos or burnout.

qa growth
Grzegorz Holak
13 Jun 30, 2026 16 min read

Release Confidence Score step by step

How to combine five QA metrics into a single decision indicator. Three calculation models - traffic light, weighted, with a disqualifier - an interactive calculator, and how the Confidence Score changes QA's position in the company. Article 7 of 9.

qa metrics
Filip Barszcz
14 Jun 25, 2026 16 min read

Why QA experience is more than years on a CV

QA experience isn't just tool knowledge. It's the ability to predict risk, ask the right questions, and recognise problems before they become bugs.

qa experience
Grzegorz Holak
15 Jun 23, 2026 14 min read

Number of Releases - the context metric

Why the number of releases is the common denominator for every QA metric. How to normalize, the link to Deployment Frequency (DORA), and why 3 bugs across 2 releases is a crisis while 3 across 15 is a win. Article 6 of 9.

qa metrics
Filip Barszcz
16 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
17 Jun 17, 2026 11 min read

Ultracode and Dynamic Workflows in Claude Code - what they really change for QA, architects, and development teams

What Ultracode and Dynamic Workflows in Claude Code actually are: a workflow with phases and subagents instead of a linear chat. What it changes for QA, test architects, and teams - and the cost risks involved.

claude-code ai
Grzegorz Holak
18 Jun 16, 2026 14 min read

Escaped Bugs per Release - find the risky release

How to detect an escaped-bug spike in a single release, run a 5-question investigation and put prevention in place. Escaped per Release vs the overall Escaped Rate. Article 5 of 9.

qa metrics
Filip Barszcz
19 Jun 11, 2026 17 min read

Why skipping QA on a project almost always costs more than it seems

QA isn't an add-on. Skipping quality assurance leads to delays, bugs, chaos and lost user trust. Here's why it almost never pays off.

qa quality
Grzegorz Holak
20 Jun 10, 2026 8 min read

The /goal command in Claude Code - a session contract that won't let the agent give up

How /goal in Claude Code enforces completion through a session-scoped Stop hook. Pros, cons, when to use it, how to phrase the condition, and why it matters for QA.

claude-code ai
Grzegorz Holak
21 Jun 9, 2026 14 min read

Issues per Release - a code-maturity gauge

How to roll out Issues per Release from scratch, why it's a metric of the development process and not just QA, and how it reshapes the conversation with the Engineering Manager. Article 4 of 9.

qa metrics
Filip Barszcz
22 Jun 2, 2026 14 min read

Escaped Bugs and Problems - the full spectrum of what reaches production

Bugs in the code are only part of the story. The full taxonomy of escaped problems - code, infrastructure, configuration, integrations, regressions - the cost of each type and how to measure it. Article 3 of 9.

qa metrics
Filip Barszcz
23 May 26, 2026 15 min read

Defect Detection Ratio - how to measure effectiveness before anything reaches production

A deep guide to Defect Detection Ratio - basic and weighted formula, interpretation thresholds, historical data, seasonality, three traps and ready-to-use lines for the boardroom.

qa metrics
Filip Barszcz
24 May 19, 2026 12 min read

QA metrics the business actually wants to hear

A complete guide to transforming QA reporting - from counting bugs to speaking the language of outcomes and business decisions. Five metrics, three pillars, one model.

qa metrics
Filip Barszcz
25 Apr 30, 2026 11 min read

A skill for filing bugs in Jira through Atlassian MCP

How to build a skill that turns your „hey, something's broken on checkout” into a complete Jira ticket - with evidence, dedupe, and without polluting the project. No autopilot agent, a deliberate human confirm in the middle.

ai qa
Grzegorz Holak
26 Apr 28, 2026 9 min read

How testers should evaluate agent output

Five dimensions for evaluating agent output, a checklist you can walk in fifteen minutes, and situations where you just send the result back without a lengthy debate.

ai qa
Grzegorz Holak
27 Apr 24, 2026 9 min read

10 AI workflows that actually help a Test Architect

Ten concrete workflows - from test strategy review to the decision not to automate - each deployable in a week and usable every day.

ai qa
Grzegorz Holak
28 Apr 23, 2026 11 min read

First MCP for QA: search and fetch over evidence

How to start with MCP in QA from the simplest possible pair of tools - search and fetch over evidence. No autonomy, no loops, just a structure you can maintain.

ai qa
Grzegorz Holak
29 Apr 22, 2026 9 min read

How to write AGENTS.md for a test automation repo

What to put in AGENTS.md for a test automation repo, common pitfalls, templates for Playwright, Cypress, and API tests, and how to tell if the file actually helps.

ai qa
Grzegorz Holak
30 Apr 19, 2026 8 min read

Skills, tools, agents, MCP, AGENTS.md - a concept map for testers

Five concepts that get confused most often in QA conversations about AI - plus a simple decision model for what to use when.

ai qa
Grzegorz Holak