I think I’d also like to have this added by the formatter, because it helps to understand the purpose of a method. Whether a method yield or not is an essential property. You can’t call a yielding method without a literal block (an vice versa). IMO this should always be part of the signature so you can be sure when there is a & it yields and if not, it doesn’t yield.
@asterite I can’t see why adding this to the formatter would cause any friction. Maybe some people won’t like it, but that’s always the case. Other people won’t like it to not have this formatter rule.