Huang Shi enhanced the e2b-dev/infra repository by improving the robustness of object retrieval from AWS S3. Focusing on backend development with Go, Huang addressed a key reliability issue by implementing explicit error handling for S3 HeadObject operations, specifically targeting NotFound responses. This approach reduced false positives in data pipelines and consolidated error paths, making failure scenarios more observable and easier to triage. By adding explicit failure signaling, Huang improved both the maintainability and traceability of the codebase. The work demonstrated a thoughtful application of error handling and cloud storage skills, resulting in a deeper, more resilient backend infrastructure.