Keerthi Sree enhanced observability in the breez-sdk-greenlight repository by developing a feature that formats diagnostic logging data as hexadecimal strings. Focusing on Rust and leveraging skills in debugging and SDK development, Keerthi improved the readability of node IDs and channel data within routing responses and custom messages. This technical approach allows developers to more easily interpret byte arrays during troubleshooting, reducing the time required to diagnose node communication issues. The work addressed a specific pain point in debugging workflows, demonstrating a targeted and practical engineering solution. Over the month, Keerthi delivered this feature without addressing bug fixes, reflecting focused depth.