F.4:4.3 - Positive Construction Rule

Write a description in this order:

1. Name the described local system-role kind and state its candidate domain, operative membership distinction, one useful member/non-member boundary, and continuity rule. Record source or practice provenance only when it helps the reader locate or compare the definition.
2. Name the current KindSignature edition and effective reference scheme.
3. Give one short recognition paragraph, including the broad A.1 system range when a cold reader could narrow it incorrectly.
4. State the smallest direct criteria or invariants that distinguish the kind.
5. State what the description does not assert about classification, assignment, capability, Method, Work, evidence, status, permission, responsibility, publication, or relation positions.
6. Add neighboring references only when the receiving use depends on them.
7. Use F.18 for a durable public name. Use C.3.3 only when an actual relation between exact local kinds is current; use F.9 only when the receiving claim relates distinct F.17 local-sense cells.