Spencer Jones developed a new feature for the opensearch-project/opensearch-api-specification repository, enabling alias renaming during snapshot restores by adding rename_alias_pattern and rename_alias_replacement parameters to the API. He updated the YAML-based API specification and maintained comprehensive documentation through the CHANGELOG, ensuring clarity on the new behavior. Spencer also implemented targeted tests to validate the alias renaming logic, improving reliability and coverage for restore operations. This work addressed the need for safer, more flexible alias migrations across environments, supporting automation and consistency. Over the month, Spencer demonstrated depth in API specification, OpenSearch internals, and snapshot restore workflows through this focused contribution.