The declared document is there and a browser can read it. An unauthenticated machine request is refused. The description exists and is out of reach of the thing that needs it, which is a different problem from a document that is gone.
65 records across 25 subjects, observed 2026-09-10. Every one carries a check you can run in a single request.
All subjects ยท the whole registry, machine-readable
This is not a list of good APIs or bad ones. It is a list of observations, each dated and each disprovable in one request. Absence from it means an operation was not examined, not that it is fine.