Size the run before you spend it: how strong a model, and how hard it should think. is read-only and advisory. From one assessment it sizes the two dials that set a model's per-run cognitive spend — capability tier and reasoning effort. It does not choose, route, switch, pin, spawn, set, or require any concrete model or level. Goal From a single risk-and-complexity read, recommend two coordinates. Capability tier — the cheapest sufficient class of mind: - for local, mechanical, reversible work with cheap, complete verification. - for ordinary repo-grounded reasoning, multi-step drafting, norm…