Worked on API governance and cross-version validation for the OpenSearch Learning to Rank (LTR) plugin, focusing on robust specification and testing. Developed OpenAPI specifications for LTR Stats endpoints in the opensearch-api-specification repository, covering general, node-specific, and metric-specific stats. Introduced YAML-based smoke tests in opensearch-build to validate the LTR stats endpoint across multiple OpenSearch versions, ensuring consistent functionality. Enhanced CI/CD workflows to automate plugin testing and maintain up-to-date documentation through CHANGELOG updates. Leveraged skills in API specification, OpenAPI, and YAML to improve release readiness and reduce risk, emphasizing maintainability and compatibility across evolving OpenSearch environments.