It’s often considered bad practice to pass around raw values for that very reason. Introduce a (minimal) abstraction, that is, give the thing you’re passing thr

It’s often considered bad practice to pass around raw values for that very reason. Introduce a (minimal) abstraction, that is, give the thing you’re passing through those layers a name. Then you can change the endpoints at will and still get static checking (as a plus, you can‘t accidentally pass the wrong bool, or mix up the tuple order). I agree with the GP‘s point that static typing forces you to do that kind of design work earlier. (Edit: You raise a good point, though. I think a lot of people run into this kind of problem with static typing.)