With your job as a tutor comes the important issue of the amount and type of student assistance you provide. How much is too much? How much is enough? What exactly should you do or not do? Many ethical questions arise when working as a tutor. Irene Clark writes in Writing in the Center, 

For students and tutors to work together productively, it is important that students assume responsibility for their own work right from the beginning. If one views writing as a decision making process, then the goal of writing instruction must be to enable students to judge the appropriateness of the decisions they make as writers, insights that they will be able to apply to subsequent writing tasks. (55)

Students should understand that the writing center is not simply an editing mill. You are not going to “fix” their papers for them; your goal is simply to help them learn to find and to correct the problems themselves. The students are responsible for their papers; you are not. However, occasionally, it is worthwhile for a tutor to role model ways to correct grammatical errors. Many students benefit from seeing various ways to correct a sentence fragment, etc. But keep in mind that “stimulating independent learning is an important aspect of the tutoring process“ (Murphy and Sherwood 15).

As a tutor, you should discourage students from taking shortcuts with their work. You need to direct the students to do the work as assigned.