ummm yes... JR... and please upload pictures of that.
As for the topic of this thread...
I see the distinction between rules and agreements, and this is definitely something I strive to do... ESPECIALLY in relationships. Ever heard of "rules are meant to be broken"? Seems like that stems from the participants not "agreeing" to them in the first place.
And - for sure agreements can change over time, being open to that and actually forming new agreements is what makes boundaries heard, understood, and kept.
Sounds healthy to me!
So, from what I have read over the past several months there are no rules for what the agreements should look like. Whatever works for you, works for you!