Worked on enhancing rate-limiting configurability within the netlify/primitives repository by introducing a window-based limit option to RateLimitConfig, enabling more granular control over request handling per time window. Focused on backend development using TypeScript, the work involved aligning rate-limiting behavior and types across multiple components to ensure consistency and maintainability. The implementation expanded TypeScript typings to improve compile-time safety and reduce runtime errors, while maintaining the existing public API except for the new windowLimit feature. This update prepared the primitives package for future extensibility and streamlined the integration of advanced rate-limiting features across backend services.