Jiang Xiaotong contributed to the sglang repositories by developing and refining features that enhance model optimization workflows and tool-call integration. He improved nightly CI reliability and user experience in fzyzcjy/sglang by adding targeted math evaluation tests and updating documentation to clarify DeepSeek optimization techniques, using Python and Markdown to ensure clarity and maintainability. In bytedance-iaas/sglang, Jiang expanded DeepSeek V3.1 model support and integrated Kimi-K2 tool-call functionality, addressing model-specific formatting issues and improving API integration. His work demonstrated a strong focus on robust testing, clear documentation, and practical solutions that reduce onboarding friction and support reliable model deployment.