Chen Chen focused on code cleanup within the vllm-project/vllm-ascend repository, targeting the kernel interface for improved maintainability. Over the course of a month, Chen removed unused gamma1 and beta1 parameters from the mla_preprocess kernel, updating related bindings and call sites to streamline the codebase. This work, primarily in C++ with elements of Python and kernel development, reduced the code surface area and lowered future maintenance risk without introducing user-facing changes. The approach emphasized careful code refactoring and adherence to Git workflow best practices, resulting in a cleaner kernel path and facilitating easier onboarding for future contributors.