Mateus Costa

(Inspired by Martin Fowler) Some pieces from The Developer Divide — What the Pragmatic Engineer’s 900-Developer Survey Actually Reveals About AI The Pragmatic Engineer survey identified three developer archetypes in the age of Al: Builders, Shippers and C…

(Inspired by Martin Fowler) Some pieces from Tech Radar(Volume 34 - April 2026) Measuring collaboration quality with coding agents Metrics such as first-pass acceptance rate, iteration cycles per task, post-merge rework, failed builds and review burden pr…

(Inspired by Martin Fowler) Some pieces from Stop Sloppypasta I thought were interesting: Too long, didn’t read: slop·py·pas·ta n.

(Inspired by Martin Fowler) Some pieces from Harness engineering: leveraging Codex in an agent-first world I thought were interesting: About AGENTS.md We tried the “one big AGENTS.md” approach.

A disclaimer about used terms in the text: I’ve seen along the years that some definitions about testing have different meanings to developers.

GitHub Actions has been growing at a fast pace and I’ve been using it in some pet projects.

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Some of the content of this book I already knew, but it was good to understand them in a deeper level and how can I extend the usage from most of the basic commands that I have been using before. the . command let us repeat the last change.