During July 2025, Zixuan Xie focused on improving reliability in the vllm-project/llm-compressor repository by addressing a runtime bug in the AutoWrapper argument inference logic. Using Python and AST manipulation, Xie fixed an issue where variables involved in self-assignment were incorrectly excluded from the unbound argument list, which previously led to torch.fx runtime errors. The solution involved careful analysis of variable usage within statements and the addition of targeted tests to ensure correctness and prevent regressions. Xie’s work demonstrated depth in debugging and testing, resulting in a more stable AutoWrapper flow within the LLM compression pipeline for future development.