One criterion per role,
decided against an object.
Not years, not revenue, not intention. In all three cases the evidence is something someone produced and a third party can verify. The Behavior Reference (BR) is not after-the-fact documentation of the code. It exists before the code — and that is exactly what admission is decided on.
Integrator
At least one Behavior Reference (BR) that passed the Behavior Gate, with a named object and version. Plus named people with a kept Evidence Record.
Platform
A documented case in which the cooperation worked — line, scope, exchange format, and what remained open.
Training
Named trainers with an Evidence Record, one delivered course, and the willingness to have their own material checked against the canon.
For all three
The willingness to give the entry back when the precondition no longer holds. A directory nobody drops out of is just a list again.