What we built, what broke, and what the break taught us. These are the real notes from the work — including the defects, because a changelog that only lists features is a marketing document.
Building the Construction Act engine found the hole: the event existed, the position read it, and no command could emit one — so "pay in full" was the only advice the platform could ever offer.
Money in minor units is a correct decision. Dividing by 100 in five places is not: a yen has no minor unit and a dinar has three, so a JPY figure displayed a hundred times too small.
Splitting a wrapped specification clause on newlines invented a hold point that did not exist. A register that gains a requirement nobody imposed is worse than one that misses it.
Printing a web page is not an answer when the document carries a content hash. Building the writer found the report putting raw minor units in front of an adjudicator.
One console endpoint was public with no production gate and returned a PM access token to anyone who could reach the origin. Its sibling already carried the gate, which is what made it dangerous.
Posts are engineering notes rather than announcements, and there is no subscription form on this page — the weekly issue is role-targeted and sent from the product, where consent is recorded against the person.