As online teaching and learning become increasingly prevalent in colleges and universities, many librarians in higher education are tasked with creating instructional content adapted to the online format. Most extant literature has focused on the application of popular instructional design models, such as ADDIE, to an online format.However, few studies have addressed the models that would facilitate instructional adaptation in order to transition from a face-to-face to an online environment quickly; specifically, there is a gap regarding modes through which to make this shift quickly due to unusual circumstances, such as the COVID-19 global pandemic. This case study seeks to demonstrate how several resource-constrained librarians at University of Idaho Library applied the Rapid Prototyping instructional system design model to develop new instructional content to promote information literacy for incoming students enrolled in first-year writing classes in an online format.