Worked on the kgateway-dev/kgateway repository to enhance the reliability of token generation by addressing a critical validation issue. Focused on backend development and API design, the work involved enforcing a strict constraint that tokensPerFill must always be greater than zero. This was achieved by updating both the Go type definitions and the Kubernetes CRD YAML, ensuring that invalid configurations are prevented at both code and deployment levels. By resolving this bug, the changes improved system predictability and reduced support incidents related to misconfiguration. The solution was validated through code review and aligned with established runtime invariants for the service.