D067 - The headline number is a frontier, not a sum

Status: decided, on external criticism.

"65 pass, 6 partial, 38 fail, 7 skip" has no denominator and no shape. Worse, it discards the one piece of structure this suite deliberately has: checks depend on capabilities that other checks establish, so a failure near the foundation matters more than one at the top, and summing treats them alike.

It also rewards the wrong work - adding three hundred census entries moves the total and changes nothing about whether a bug would be found.

OBS|frontier reports three numbers: capabilities established, checks that never ran because a capability they needed was not, and the deepest wholly-green section. The middle one is the point: it counts the suite sitting behind the floor, and it is the number an emulator author can move.

Measured over the capability graph, not section order. Section order is a reading order; requires_caps/provides_caps is the real dependency structure. The green-section number is reported as well because it is the one a person can point at, but it is a proxy and the capability counts are the measurement.