Worked on the ai-dynamo/dynamo repository to enhance the reliability of core messaging by addressing a critical bug in the TwoPartCodec component. Focused on backend development using Rust, the work involved implementing checked arithmetic to prevent integer overflow during message handling, thereby reducing the risk of crashes in production environments. This fix improved data integrity and robustness in inter-service communication, ensuring safer operation under edge cases. The solution was delivered through a well-documented pull request, demonstrating attention to code quality, peer review readiness, and adherence to release governance. The contribution reflects a methodical approach to backend stability and system safety.