Worked on the menloresearch/JanCode repository to enhance the reliability of its data ingestion pipeline, focusing on robust error handling during initial chunk processing. Addressed a critical issue where exceptions in the first data chunk could cause cascading downstream failures by resetting the isWaitingForFirstChunk state within the catch block. This targeted fix ensured correct handling of the first chunk and prevented further errors in the pipeline. The work demonstrated strong skills in TypeScript, error handling, and state management, resulting in improved code quality and more predictable ingestion behavior. No new features were added, but pipeline stability was notably strengthened.