Nick Lloyd retweetledi

The harness is no longer a wrapper around the model. The harness is part of the model's effective parameters. The post training process embeds the harness's tool surface, schema shapes, memory rituals, citation contracts, and system prompt structure into the model's instinct set.
You can take the weights to a different harness, but you cannot take the instincts. The instincts only fire when the harness presents the world the way the post training presented it.
Also, the matched pair is not static. The right harness for a model in March is not the right harness for that model's successor in October!
Once again, if you want to stay at the edge, you have to delete most of your code when a new model is released... LLMs eat scaffolding for breakfast!
Nicolas Bustamante@nicbstme
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