Jie Chen focused on maintaining and improving code quality in the modelcontextprotocol/typescript-sdk repository, specifically targeting the StreamableHTTPClientTransport component. Over the course of the month, Jie applied a targeted code style clean-up using TypeScript, standardizing indentation to align with project conventions. This work did not introduce functional changes but enhanced code readability and maintainability, reducing friction in future pull request reviews. By reinforcing consistent formatting practices, Jie supported smoother onboarding and enabled faster downstream feature development. The technical approach emphasized front-end development principles and SDK design patterns, contributing to a more robust and accessible TypeScript codebase for ongoing team productivity.