Worked on the google/mcp-security repository to enhance backend reliability and repository maintainability. Focused on improving codebase hygiene by updating the .gitignore file to exclude IDE artifacts and Firebase Studio index files, which streamlined onboarding and reduced unnecessary version control noise. Strengthened API input validation by making the collection_type parameter mandatory in the search_threats endpoint, reducing the risk of downstream errors and ensuring a more predictable data flow. Utilized Python and Git for backend development and configuration management, maintaining clear and conventional commit messages to support traceability. The work addressed foundational quality and set the stage for future enhancements.