Worked on the esm-tools/esm_tools repository to enhance production readiness by focusing on code hygiene and risk reduction. Addressed a critical maintenance task by removing leftover debugging traces, such as ipdb.set_trace() calls and commented-out imports, from esm_environment.py. This targeted code cleanup in Python improved the safety and maintainability of production code, ensuring that accidental execution of debugging statements would not occur during deployments. Demonstrated strong debugging and version-control skills by carefully tracking changes across multiple commits, which supported faster and safer deployment cycles. The work emphasized disciplined code management and contributed to a cleaner, more reliable codebase.