Hard-to-read DB schemas make AI development cost 1.9x
Seven contrasts: naming (orders vs ord), column comments, value meaning ('cancelled' enum vs sts = 9), type (datetime vs char(14)), foreign keys, soft delete (deletedat vs dflg = 'Y'), and price columns (unitpriceexcludingtax vs prca).
1.9xcost and output tokens for the obscured schema versus the readable one ($0.41 vs $0.21 per run)