During October 2024, Shingarov focused on refactoring the Pred typeclass within the ucsd-progsys/liquid-fixpoint-debug repository. He streamlined the codebase by removing explicit Semigroup and Monoid instances for the Pred type, which previously favored PAnd, thereby clarifying the algebraic intent and reducing maintenance complexity. This targeted cleanup, implemented in Haskell and leveraging advanced type system and functional programming techniques, eliminated unused abstractions and reduced cognitive overhead for future contributors. While no user-facing features were released, Shingarov’s work established a cleaner foundation for subsequent enhancements, enabling safer refactors and more robust feature development in the evolving codebase.