According to materials from the NVIDIA Developer Blog, creating a high-performance AI agent is not limited exclusively to selecting the most suitable models. The key success factor is the "harness"—the architectural shell surrounding the model itself.

This approach shifts the focus from searching for the ideal algorithm to designing the correct interaction structure. It is the surrounding architecture that determines how effectively the model can perform assigned tasks in real-world conditions.

The publication emphasizes that ignoring the importance of the system environment can limit the potential of even the most advanced models. The development of agent systems requires a comprehensive approach to software engineering.