Worked on improving network reliability in the firebase/firebase-tools repository by addressing premature socket closure issues affecting API requests on recent Node.js versions. Implemented a targeted retry mechanism that disables keep-alive when node-fetch encounters premature close errors, allowing safe retries for replayable requests. The solution involved serializing multipart FormData to a Buffer upfront, ensuring that requests could be safely retried without data loss. Focused on robust error handling and thorough testing, the work stabilized firebase login and other API calls under tight network conditions. Utilized TypeScript for development, applying skills in API development, error handling, and testing to deliver a focused bug fix.