Worked on stabilizing upgrade validation tests in the odoo/upgrade-util repository, focusing on backend reliability during Odoo migrations from version 18.3 to 19. Addressed a bug in the SleepyDeveloperError test by refining model-name validation logic, ensuring that valid models such as test_mother_underscore are correctly recognized and not misclassified as tables. This fix involved updating test scenarios and adding valid model names, which reduced false positives and minimized upgrade-related downtime. Leveraged Python and backend development skills to strengthen migration helper validation paths, resulting in more robust upgrade processes and improved reliability for teams performing Odoo version upgrades in production environments.