Worked on the dotansimha/graphql-code-generator repository to deliver a type-safety and maintenance enhancement for gql-tag-operations. Introduced a DocumentRegistry type, centralizing document references and improving type safety across the codebase. Refactored the documents structure in example files to utilize a new Documents type, which streamlined code organization and prepared the project for future extensibility in document management. Documented the feature with a changeset for release notes, ensuring clear communication of the update. The work leveraged skills in code generation, GraphQL, JavaScript, and TypeScript, focusing on maintainability and scalability without introducing any bug fixes during the development period.