Developed comprehensive reliability tests for the singleton decorator in the OpenmindAGI/OM1 repository, focusing on validating instance equality, reset behavior, and thread safety. Leveraged Python and advanced testing techniques to refine the test suite’s structure, improving maintainability and supporting future enhancements. Addressed type-checking and import issues by reorganizing imports and applying targeted fixes, which streamlined the codebase and reduced potential errors. The work increased test coverage for core singleton functionality, enabling safer refactoring and faster feedback during continuous integration. This approach emphasized robust test design and code clarity, ensuring that critical decorator logic remains reliable as the project evolves.