Worked on the pixee/codemodder-python repository with a focus on improving stability and dependency management. Addressed a critical issue by upgrading the Pydantic dependency to version 2.11.5 in the pyproject.toml file, which resolved inconsistent and flaky test failures in the continuous integration pipeline. This change enhanced test reliability and provided faster feedback for ongoing development. Utilized skills in dependency management and configuration using TOML to ensure smoother release processes and reduce risk. The work laid a solid foundation for future feature development by prioritizing dependency hygiene and maintaining a stable development environment for the team’s Python codebase.