Class Descriptions is a free Chrome add-on developed by paul.kaplan.74. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This program aims to address a limitation of the University of Chicago Classes site by adding course descriptions.

The University of Chicago Classes site currently lacks the ability to display course descriptions, which can be crucial for students when choosing their courses. Class Descriptions solves this problem by pulling descriptions from a database created by Pete Vilter during hack@uchicago's first hackathon.

With Class Descriptions, students can easily access detailed information about each course, helping them make informed decisions. This Chrome add-on enhances the functionality of the UChicago Classes site, providing a valuable resource for students at the University of Chicago.