The mature step after Medical is not the next domain but understanding WHY the registry converges.
Three derived views over existing data (no ML, no new architecture):
1. Why converge? — a domain matrix per cross-domain MCAP + a curated REASON (the moat: not "MCAP-X
exists" but "why MCAP-X must exist": software product / supply chain / product operation /
universal process).
2. Capability Families — ~75 MCAPs collapse to ~15 curated families (knowledge/capability_families/
families.yaml), each with the reason it is universal or domain-specific.
3. Core vs Domain — a COMPUTED property (not a new class): Core recurs across >=2 independent domains
AND source types; Domain stays in one. Medical made it obvious (new medical caps are nearly all
Domain; update/SBOM/access/logging are Core).
Non-runtime -> no deploy. 4 tests pass, check-loc 0.
Benjamin Admin