In According to the rules of writing a good cover letter which of the rules is something the writer should not do?

One key rule to avoid when writing a cover letter is to use a generic template that lacks personalization. This can make the letter feel impersonal and may give the impression that the applicant is not genuinely interested in the specific position or company. Additionally, writers should refrain from repeating their resume verbatim; instead, they should highlight relevant experiences and skills in a way that complements their resume.