Jihwan Yeo developed a Quantization Robustness Guard for the Samsung/ONE repository, focusing on improving the reliability of quantized models in production environments. Using C++ and leveraging expertise in compiler development and quantization, Jihwan implemented a pre-quantization validation mechanism that detects and manages quantization-unfriendly values before they enter the quantization pipeline. This approach addressed a specific bug by preventing misquantizations and runtime errors, thereby enhancing the stability of model deployments. The work demonstrated a targeted and in-depth solution to a nuanced problem in quantized model workflows, reflecting a strong understanding of both compiler internals and quantization challenges.