Kato worked on the EspressoSystems/espresso-sequencer repository, focusing on standardizing the organization of audit report directories. They implemented a feature that renamed the 'Audits' directory to 'audits' and updated PDF file names within both 'external-reviews' and 'internal-reviews' to ensure consistency across the project. Using Git for version control and shell scripting for file management, Kato’s changes improved the discoverability and accessibility of audit documentation for both internal and external auditors. The work addressed manual overhead in locating reports, streamlining the review process. Over the month, Kato delivered this targeted feature with attention to directory structure and traceability.