Most of the small business owners I know spend an afternoon a week on it. The chase letters. The "just checking in" follow-ups. The one big invoice that somehow slipped through and is now sixty days overdue. A bookkeeper on r/Accounting last week put it this way: "I spend maybe 6 to 8 hours a week just chasing payments." He'd just lost track of a £22k invoice that was forty days overdue. Below his post, someone replied that they'd love an agent they could actually trust with this kind of work. I read both on a Sunday morning and thought — actually, I can build that. So I did. What the agent does I called it Chaser . The simplest possible version of an Accounts Receivable (AR) assistant. Once a day, it reads a Google Sheet I keep — the ' AR-aging sheet' . Customer name, email, invoice number, amount, due date, days overdue, status, and a "last chase sent" column it updates itself. For each row, it makes one decision. Should I chase this customer today? If the status isn't "open" — skip.…