During January 2026, Roman Karabut developed a fuzz testing harness for the AztecProtocol/aztec-packages repository, focusing on validating token interactions such as mint, transfer, and burn. Leveraging Rust and state machine testing, he implemented randomized scenario generation to expand test coverage and facilitate early detection of edge-case regressions. The harness was designed to improve the reliability of smart contract token flows, reducing integration risks with external systems. Although no major bugs were fixed during this period, Roman’s work provided deeper assurance of protocol correctness and robustness, laying the groundwork for more resilient token operations within the Aztec ecosystem.