Chen Qixuan contributed to the OpenDCAI/DataFlow repository by enhancing both documentation and data engineering workflows. In September, Chen improved onboarding and user navigation by adding direct documentation links for multiple pipelines in the DataFlow README, aligning documentation with actual pipeline capabilities and streamlining access for new users. In October, Chen addressed a key bug by standardizing the output key for the UniqueWordsFilter operator, ensuring reliable downstream processing and maintaining backward compatibility. Throughout the two months, Chen applied Python development and data engineering skills, focusing on documentation quality, data contract clarity, and robust pipeline integration within the DataFlow project.