During January 2026, Catching contributed to the jeejeelee/vllm repository by enhancing type safety within the Attention module. Focusing on Python and leveraging static analysis and type checking, Catching implemented a temporary workaround to resolve mypy warnings in the vllm/v1/attention path. This approach maintained build health and ensured that static analysis could continue uninterrupted, reducing risk for production workloads dependent on attention mechanisms. The work laid a foundation for future type-safe improvements, enabling safer refactoring and easier maintenance. While the contribution addressed only one feature, it demonstrated careful attention to code quality and long-term maintainability in a critical module.