Worked on the informalsystems/quint repository to enhance the stability and reliability of the ConsensusAlg.qnt module within a distributed systems context. Addressed a critical bug by ensuring that, when no new crashes are detected, crashed messages default to an empty set, thereby preventing the processing of outdated crash data. This approach reduced runtime errors and improved the robustness of the crash-handling pipeline. The work focused on code quality and system integrity rather than introducing new features. Utilized expertise in consensus algorithms and the Quint language to deliver targeted improvements that strengthened data integrity and minimized the risk of stale data propagation.