Worked on the rosetta-models/common-domain-model repository to enhance data model consistency and API clarity. Addressed a critical spelling error by correcting the notionalReference field across Rosetta definitions, ensuring adherence to naming conventions and reducing the risk of data mismatches. Led a backwards-incompatible API rename, updating both type and synonym references, and provided comprehensive release notes to guide downstream consumers through the migration. Utilized skills in data definition, documentation, and domain modeling, with changes implemented in Rosetta and Markdown. The work improved runtime reliability and enabled clearer integration for users relying on the updated data model and API structure.