What an AI Agent Harness Actually Needs Beyond a Model

For the first wave of AI applications, the model was the only architectural question that mattered. Which model reasons better. Whose code is cleaner. Whose tool calls are more reliable. Where is the context window largest. What costs less per task. That conversation still matters. It is just no longer enough. The systems attracting serious […] The post What an AI Agent Harness Actually Needs Beyond a Model appeared first on TiDB .