As generative AI tools become commonplace, faculty face new challenges in designing writing assignments that support learning while maintaining academic integrity. This poster shares a practical, faculty-centered framework for adapting existing writing assignments to explicitly incorporate AI as a collaborative tool rather than treating it solely as a threat. Drawing on classroom experience and faculty development work, the poster highlights common student challenges, models transparent AI use, and offers concrete strategies for assignment design that emphasize process, accountability, and growth. The focus is on transferable practices applicable across disciplines.