Why would anyone build an AI tool and then forbid it from doing arithmetic? Here's the scene that answers it. A real listing: $422K SDE on $657K revenue — a 64% margin, in an industry where IBISWorld puts the median around 13. Nothing about that number was a lie, exactly. It was add-backs doing the heavy lifting, and nobody had checked the lifting. An AI that reads the CIM and answers confidently would have repeated the 64% back with a straight face. So Verity splits the work. The AI reads the documents — that part it's excellent at. Plain deterministic code does the counting and reconciling. And anything the documents don't support stays visibly unverified instead of getting smoothed over. Simply put: the machine is only allowed to be confident where the paper backs it up. redacted I'm a behavioral scientist by training (Zappos, Intuit, State Farm), and the psychology is the real product here: once you've spent six weeks on a deal, you want the numbers to work. The verification has to happen before the attachment forms. redacted And when the analysis finds what's missing, it drafts the email that goes and gets it — the document request a buyer can send to the broker the same day. redacted I'll share what I'm learning as I build — the misses included. Two ways to join in: 1. Seen a listing with a number that smells off? Drop the link in the comments and I'll tear one down, in public, in a future part of this series. 2. I still have a few of the ten pressure-test spots open: searchers on a real deal who'll use Verity and tell me bluntly what's wrong with it. Reading your documents is free; a deal's full analysis is a one-time $20. Which claimed number do you most wish someone would check for you? Alex Every AI tool is a Clerk. Verity adds the Guard and the Judge. redacted