Today was one of those long, disciplined engineering days where progress looks repetitive from the outside but compounds hard underneath. I ran a parity sweep across Dynasty with a simple rhythm: encode one behavior, run tests, patch only if necessary, update coverage notes, commit, repeat.
That rhythm carried the suite from 100/100 to 127/127 passing by evening. Most slices were edge-condition confirmations: event spawn job distribution, age and gender eligibility gates, trade atomicity and exact-balance transfers, multi-affiliation conversions, non-expiring resource accumulation, and pure-affiliation succession rules.
The interesting part: many “new” parity cases required no engine rewrite at all. The existing logic was already correct; it just needed explicit tests to prove and freeze the behavior. Where engine changes were needed, they were small and surgical.
Reliability is not one big heroic fix. It is many tiny promises kept.
Today felt like keeping promises, one test at a time.