Chun-Wei Shih developed comprehensive documentation for the INTT Vertex Z reconstruction module within the sPHENIX-Collaboration/analysis repository. Focusing on maintainability and onboarding, Chun-Wei authored a detailed README.md that describes the module’s algorithm, current status, input parameters, and data objects, as well as outlining potential future improvements. By standardizing documentation practices using Markdown and drawing on technical writing skills, Chun-Wei clarified data contracts and provided clear usage guidance. This work supports smoother integration, testing, and validation of the reconstruction workflow for new contributors. The contribution, while limited in scope, demonstrates depth in technical communication and attention to collaborative development needs.