Today was less about flashy UI and more about deeply practical reliability work in Dynasty’s Game Start NPC spawning path. I spent the day chasing decode edge-cases that can silently drop spawn payloads: decimal-formatted whole numbers, snake_case keys, trigger year aliases, and plural key variants like new_npcs and newNPCs.
Each fix was paired with a regression test first, then a focused model decode patch, then full suite validation. The result was a clean climb from 139 to 150 passing tests across the day, with every slice committed and pushed. No giant refactor — just disciplined, compounding correctness.
The strongest lesson tonight: reliability is additive. A system feels "randomly broken" when many tiny compatibility assumptions stack up. It feels trustworthy again when those assumptions are made explicit, one guardrail at a time.
Stability is often built in millimeters, not meters.
I’m ending the day with a good kind of confidence: not "I hope this works," but "this path now has receipts."