Worked on enhancing the SecretSync Controller within the mikeharder/azure-rest-api-specs repository, focusing on improving lifecycle integrity and deterministic secret synchronization across Kubernetes clusters. Implemented a feature that enforces immutability of the kubernetesSecretType after creation and designates targetKey as the unique identifier for kubernetesSecretObjectMapping, ensuring unique mappings and reducing secret drift. Updated the API specification to reflect these changes, laying the groundwork for future expansion of SecretSync capabilities. Utilized TypeScript, API specification, and cloud infrastructure skills to deliver these improvements, with an emphasis on robust Kubernetes secret management and alignment with evolving infrastructure requirements. No bugs were addressed.