Wenkokke enhanced error handling in the IntersectMBO/lsm-tree repository by introducing granular error types to the LSM-tree library. Through a focused refactor, they reorganized error type definitions in Haskell, improving the clarity and maintainability of failure semantics throughout the codebase. This work leveraged skills in error handling, refactoring, and software design to enable more precise classification of failures, which streamlines debugging and provides clearer feedback to both users and contributors. By reducing ambiguity in user-facing errors and supporting easier onboarding, Wenkokke’s changes laid a solid foundation for future observability and maintainability within the LSM-tree project.