Kristal Lucero Fermin focused on improving the reliability of automated end-to-end testing for CDS features in the SAP/spartacus repository. She addressed persistent failures in the Merchandising Carousel and Profile Tag tests by refactoring facet application logic and tightening event data validation, ensuring that test harnesses accurately reflected updated data flows. Using Cypress for end-to-end testing and leveraging both JavaScript and TypeScript, Kristal’s work reduced test flakiness and improved the stability of continuous integration feedback. Although she did not deliver new features during this period, her targeted bug fix contributed to safer deployments and more reliable release cycles for the team.