What they did
Syed Arsalan Zaidi and his wife already logged their spending in a Google Sheet every month but rarely turned it into anything useful, such as how often they ate out by category. He built his own personal agent, which he calls Leonardo, on top of that tracker. Every Saturday at 8:00 AM it sends the couple a short financial briefing with a savings progress bar, flags categories where money is leaking and suggests cuts toward their savings goals. He can also ask it questions on WhatsApp, and it answers from the data in the tracker. He does not say which model or tools the agent is built with.
How it went
Zaidi says the agent recently told him to hold off on home purchases until the end of the year to stay on track for savings. When he asked on WhatsApp whether there was room to dine out that month, it said no and explained why, and he cooked at home instead, saving an estimated $100 to $150. Over the year he puts the savings at $200 to $250 a month on impulse purchases, which he moved into savings and several family trips. He reports being on track for his savings goals.
Worth knowing
It only works because the spending data was already entered by hand every month; the agent analyses the sheet, it does not pull from bank accounts. Zaidi keeps every spending decision himself. The post gives no build details, so the harness and model behind it are unknown.