Freeze the file. Fail when a box is gone.
You already have a recording of one API. harwatch keeps that recording as the contract. The next recording you are allowed to make is checked against it. If an endpoint or a field is gone, the check exits 1 and names it.
The free tool is the command. The paid watch is $29 a month for one API: a scheduled check and a notice when a field is removed. Cancel the month and the charge stops.
harwatch freeze recording.har --out contract.json harwatch check later.har --contract contract.json
Not a Word file. The browser writes the HAR. Passwords stay out. No customer recording is stored in the public repo.