Worked on the microsoft/rushstack repository to address a syntax error in generated TypeScript declaration files, focusing on safe export handling to improve type extraction and usage. The solution involved refining the code generation process to ensure exported names in .d.ts files were handled correctly, thereby reducing downstream build failures and stabilizing type declarations for consumers. Collaborated closely with another contributor, demonstrating clear communication through detailed commit messages. Utilized TypeScript and applied skills in API development and code quality improvement to resolve issue #5799, ultimately enhancing the developer experience for those relying on Rush Stack’s type definitions in their projects.