What the spec path only proved existed
A fourth experiment started with an economic problem — when the subscription subsidies end, all-frontier-all-the-time stops being affordable — and immediately ran into a structural one. You can't route work to a cheaper model if the work is drifting from its own plan; a cheaper router over forgotten intent only automates the drift faster. So Baton's first move touches no models at all. It reads the plan StrayMark had only ever proved *existed*.