Dengfei worked on the jd-opensource/OxyGent repository, developing a new image generation capability within the Preset Tools module. Using Python and focusing on API integration and tool development, Dengfei implemented the 'image_gen_tools' feature, which enables users to generate images from English text descriptions by interfacing with an external service through the gen_image API. This addition returns a URL to the generated image, streamlining the process of creating visual assets for presets. The work automated asset generation, improved consistency, and strengthened integration patterns, though it was limited in scope to a single feature over one month, with no reported bug fixes.