So long as that's only every Sprint planning day, I think there's value in having that "rest" day. I'd hope that instead it serves as a time to get the "low-eff

So long as that's only every Sprint planning day, I think there's value in having that "rest" day. I'd hope that instead it serves as a time to get the "low-effort" tasks done as well, such as finishing documentation, reviewing a task you put off, collaborating on issues that will inform the later planning, and other corporate tasks that we all have to do once in a while. If we all had a day to put that in, I think there would be value. (And yes, some of that time should be bonding with other coworkers!) However, I think your intent was to suggest it was a great day because no "real work" was done.