architecture Goodhart’s Law: Why Your Engineering Metrics Stop Working the Moment You Target Them josedacruz, August 9, 2026August 9, 2026 TL;DR: Any metric you turn into a target stops being a reliable measure, because people (reasonably) start optimizing for the number instead of the thing it was supposed to represent. This is called Goodhart’s Law, and it quietly wrecks engineering metrics all the time. The fix isn’t to stop measuring… Continue Reading