Worked on the citrineos/citrineos-core repository, focusing on targeted code cleanup to improve maintainability and clarity. Addressed a dead code issue by removing the unused IAdminApi interface, which had no contract and was only implemented by a single class. This refactor reduced the risk of hidden dependencies and simplified the API surface, making future iterations safer and more efficient. The work was completed using TypeScript and leveraged skills in API development and software architecture. By isolating the change to avoid behavioral impact, the update preserved existing functionality while lowering maintenance overhead and clarifying the codebase for future contributors.