"To list some duties" means to provide a written or verbal account of a few specific tasks or responsibilities that need to be performed. Full definition
Instead of just listing duties such as checking blood pressure or assisting patients with bathing, detail your accomplishments or the environment in which you worked. (resume-now.com)
Don't just list your duties in previous jobs. (loftresumes.com)
Many job seekers make the mistake of simply listing their duties. (calltocareer.com)