Hernan Leon Paris focused on improving data accuracy in the satlantis-dev/api-client repository by addressing a critical issue in the Notes Retrieval API. He corrected the account filtering mechanism by updating the URL parameter from accountId to account_id, ensuring that notes are properly filtered according to the API’s contract. This change was implemented in TypeScript and involved careful API integration, with validation through targeted unit tests and code review to maintain backward compatibility. Although the work centered on a single bug fix, Hernan’s approach demonstrated attention to detail and adherence to established conventions, contributing to the reliability of client data retrieval.