During January 2026, Kitadrum50 focused on enhancing type safety in the facebook/pyrefly repository by addressing a complex bug in generic TypedDict inheritance involving Unpack. They implemented MRO-aware tracking of field definitions and TypeVar substitutions, ensuring that concrete type arguments propagate correctly through inheritance chains. This work, carried out in both Python and Rust, aligned Pyrefly’s behavior with Pyright for Unpack scenarios, reducing false positives and improving user experience. Kitadrum50 also contributed targeted tests and code-quality improvements in the TypedDict handling path, demonstrating depth in type checking, generic programming, and maintainability within a sophisticated type resolution engine.