Worked on enhancing user documentation for the ERGO-Code/HiGHS repository, focusing on the HiGHS command-line interface. The main contribution involved clearly documenting the supported input file formats, specifically MPS and LP, to ensure users understand the CLI’s requirements and capabilities. Using Markdown and leveraging strong documentation skills, the work clarified input expectations, reduced potential user confusion, and streamlined onboarding for both users and contributors. No bugs were addressed during this period, as the emphasis remained on improving documentation quality and repository hygiene. These updates aimed to minimize misconfigurations and support queries by aligning user-facing materials with actual CLI behavior.