If the harness is the controller, the meta-harness is the controller that authors controllers. It evolves the harness as the task and the user evolve.
The search space isn't free; every harness atom is typed and every mutation is a delta against a manifest the Architect has to emit. ▸ akhil · 1
Staying within the user's prior is the harder half. The harness must remember
Reasoning Language Models aren't a new species; they're what happens when the harness around an LLM gets reflective enough to grade its own steps.
The eval is the loop, not the token. Once you accept that, every architectural choice downstream — memory, tool-use, multi-pass refine — collapses into one question: what are you scoring at each step?
A claim-first opener earns the reader's patience. So: the meta-harness is an architect that