Developed and delivered the Yarn Command Flag Separation Enhancement for the biomejs/website repository, introducing a clear distinction between command flags and yarn flags by adding a double dash (--) during yarn command execution. This update improved command clarity and reduced the risk of flag conflicts, directly addressing issue #4142 and supporting more reliable automation scripts and CI processes. The work involved careful CLI design and parsing, leveraging JavaScript and TypeScript to ensure robust implementation. Throughout the process, attention was given to commit hygiene and code review, resulting in maintainable changes that enhance both user experience and future project traceability.