Cleiviane Costa focused on stabilizing the consent workflows in the power-tools repository by addressing a compatibility issue in the Consent gem. She resolved an ArgumentError triggered by Ruby 3.3’s stricter handling of positional and keyword arguments in scoped methods, refactoring the logic into a class method to ensure smooth operation with Rails 6.1. To future-proof the codebase, she expanded the test suite to include Rails 7.2 scenarios, enhancing regression safety. Her work leveraged Ruby, YAML, and Ruby on Rails, demonstrating depth in gem management and CI/CD practices while reducing upgrade risks and improving long-term maintainability for the team.