This reminds me of something that happened at a former employer. After I had been employed there for a couple of years, someone in HR or Legal noticed that the programmers had never signed any "our code belongs to the company" agreement. So they asked us to sign a paper to that effect, and gave us each a check for $20. My thought was that I always assumed the company owned this code, but if they were going to pay for…
https://www.nolo.com/legal-encyclopedia/consideration-every-...
Any contract request that includes a small cash payout should merit extra scrutiny.