I don't see what's the point of the second one if the syntax highlight, even in the first example, already shows a changed role.

A more realistic solution for the example code would be to setup a linter in the pipeline, and if one letter variables and/or template literals are detected, depending on how nice you are, reject the commit, or send an email requesting the author to be beaten up with a crowbar to the teamlead, and a copy, parsed by chatGPT for formality and politeness, to the HR.