Scrutinizing describes someone who feels a strong need to notice, identify, and point out mistakes. People high in this trait may quickly detect errors, flaws, inconsistencies, or moments when someone has done something wrong. They often believe problems should be named directly instead of ignored for the sake of comfort. At its best, this trait can show up as accountability, high standards, careful observation, and the courage to address issues before they become bigger.
At its extreme, it can become fault-finding, criticism, or difficulty letting minor mistakes pass without comment. A recognizable fictional example is Miranda Priestly from The Devil Wears Prada. She represents someone with an intense eye for mistakes, very high standards, and little hesitation about calling out what she sees as unacceptable.