Worked on enhancing the parsing robustness of the HigherOrderCO/HVM3 repository by addressing a specific bug related to end-of-file comment handling. Focused on compiler development and parsing in Haskell, the developer implemented a targeted fix to ensure comments on the last line of a file are correctly recognized and processed at EOF. This solution included adding a dedicated test to verify the new behavior and prevent future regressions. The work improved the reliability and accuracy of code analysis pipelines by reducing downstream parsing errors, demonstrating careful attention to testing and stability within the context of compiler and parser development.