During March 2026, contributed to the vitest-dev/vitest repository by enhancing the Common Errors Guide with a new section focused on Unhandled Promise Rejections. This addition provided clear explanations and practical test examples to help developers identify and resolve issues related to asynchronous programming in JavaScript and TypeScript. The work emphasized improving documentation quality and onboarding, making it easier for users to understand and handle promise-related failures in their tests. Collaboration was a key aspect, as the feature was co-authored to ensure accuracy and clarity. No bugs were fixed during this period, with efforts centered on documentation and knowledge sharing.