Kilpatrick of Google Deepmoind is claiming what we historically thought of as “the model” is no longer just weights — it’s a sprawling system of tool calling, hosted search, code execution, containers, and an agent harness. The harness is the quintessential current example of scaffolding that the model will “eat” — within roughly 12 months, ...

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Link :
https://www.nextbigfuture.com/2026/07/some-harness-functions-go-into-the-ai-models-but-the-harness-layer-grows.html