Charlie Yi developed unified server error handling and standardized client error messaging for the MemMachine/MemMachine repository. Focusing on backend and API development with Python, Charlie consolidated disparate error handling logic into a single, maintainable framework. He replaced ad-hoc print statements with structured logging, improving both observability and debugging efficiency. Client-facing error messages were standardized to ensure consistent API responses, addressing reliability and user experience. Exception handling was refactored to comply with linting guidelines, reducing code noise and aligning with best practices. The work demonstrated depth in error handling and logging, resulting in a more robust and maintainable backend service architecture.