The thing is, the harness _is_ the model at the end of the day:

https://en.wikipedia.org/wiki/Turtles_all_the_way_down

The source code of Claude Code and Gemini CLI contradict that.

Well sure, I can find you hundreds of dead ends in mutations, but when you start parsing through what a harness does, eventually it'll just be another more deterministic and constrained model to do less creative things.