Highly recommended. Model-harness co-optimization is where you design the harness for the task and then tune the model inside the harness.
A clear example of why you want to own the harness and the models. Harness engineering is the real deal. So much to unlock.
I have been tracking a bunch of papers showing how extremely effective this is. And there are many variants. Harvey explores RLMs, which somehow enable interesting ways to scale things.
A few links here already: https://academy.dair.ai/papers/collections/harness-engineering