Coverage register
What these checks can and cannot verify, taken from what actually ran rather than from what we intend to build.
Loading coverage
Rules applied
A document of this type was checked against rules written for that type, and against the rest of the set for field agreement.
Cross-check only
No rule exists for that document type yet. The document was compared against the rest of the set and nothing else. That is not a pass.
Why this is shown at all
A checker that hides its limits is worse than no checker: it produces confidence nobody has earned. Every report carries the same declaration for the specific documents in it.