I came across the piece that so many AI builders are missing

I came across something I have been looking for, and if you are building anything with AI, I think it is worth a few minutes of your time.

I build AI agents for home service businesses. Plumbers, HVAC, cleaning companies, that kind of work. The agent talks to a customer, understands what they need, and pulls together all the details. Name, address, the actual problem, the time they want, notes about access, all of it.

Then the agent hands that off to the software the business already runs on. Scheduling, the CRM, and dispatch. And this is where it kept going wrong for me.

The agent captures ten useful things. The system on the other end keeps four. The other six just disappear. No error. No warning. The booking still goes through, so nobody notices until a tech shows up not knowing the gate code, or the dog, or the second issue the customer clearly mentioned.

I knew I was losing information in that handoff. What I could not do was measure it. I had no number. So I could not tell which agents were leaking, or how badly, or whether a change I made helped or hurt.