The analysis does not solve the grading problem, but it does help define its severity. Marginal notes highlight specific weaknesses in thought processes and organization. The end comment assesses the student's overall performance. Although corrective marks are probably responsible for most of the ink I expend on student papers, they have the least effect on a student's grade. Yet, I am aware that if I do not try to improve students' grammar, nobody else will.
Corrective marks are routine, tedious, and unavoidable.
Such a statement identifies the error by communicating the consequences. The end comment After reading the entire paper, I gather my impressions into one or two short paragraphs, summarizing important achievements and shortcomings, and identifying patterns in my own commentary. Such comments are designed to begin a dialogue. However, once the assignment is over and done with, most students do not want dialogue. Your paper requires a title.