The worst people are just writing D&D Character backstories as agent prompts:

"You are a world-class developer in <platform>..." type of crap.

Haha, at least one this… I could make an excuse, that if I’m juggling prompts around, one that starts “You are a copy writer…” vs “You are an editor that…” lets me separate them with natural language vs some historically dubious file system disorganization.