During October 2025, Kai X focused on improving the hpcaitech/TensorRT-Model-Optimizer repository by addressing a critical issue in the llm_sparsity example related to Fully Sharded Data Parallel (FSDP) argument parsing. Using Shell scripting, Kai removed unnecessary quotes from FSDP command-line options and transformer layer class arguments, ensuring correct parsing and stable execution for distributed training workflows. Additionally, Kai upgraded the transformers dependency to maintain compatibility with updated FSDP behavior. This targeted bug fix enhanced the reliability of tensorRT-optimized large-model deployments, reduced user misconfiguration, and streamlined support, demonstrating careful attention to detail and practical problem-solving skills.