Tan focused on improving documentation quality for the facebookincubator/cinder repository, addressing a specific issue in the sample code for the ast.While construct. By correcting the prompt syntax from '>' to '>>' in reStructuredText, Tan ensured that code examples rendered accurately and reduced the risk of user confusion. This technical writing effort involved careful attention to documentation standards and a clear understanding of how syntax highlighting affects readability. Although no new features were added, Tan’s work maintained the integrity of the documentation, preventing misinterpretation and supporting users in understanding code samples. Skills applied included documentation, technical writing, and reStructuredText.