Jihwan Yeo developed a Quantization Robustness Guard for the Samsung/ONE repository, focusing on compiler development and quantization using C++. Over the course of a month, Jihwan addressed a critical bug by implementing a pre-quantization validation mechanism that detects and manages quantization-unfriendly values before they enter the quantization pipeline. This approach reduced the risk of misquantizations and runtime errors, directly improving the reliability and stability of quantized models in production environments. The work demonstrated a deep understanding of quantization challenges and compiler workflows, resulting in a targeted solution that enhanced deployment robustness without introducing new features.