One owner per claim

Claim: a thing is in the scope of one member of the family, and every other member links it.

• Grade: convention, argued from the standard's one-place-per-fact principle; untested for scope tables.
• Evidence: the family's rule on the front page; one place per fact in the standard.
• Check: scope-overlap (heuristic: two members share a phrase of three words in their in rows) and scope-overlap-semantic (heuristic: two in rows of different members reach a cosine of 0.70).
• Reader styles: none.

What it asks

• Each member states what it holds in the in rows of its scope table.
• A thing another member holds is an out row that links that member.
• Two members that claim the same phrase are a finding: one owns it, the other links it.

Why

• This is one place per fact applied to scopes: knowledge that must change together lives in one place.
• Two members claiming one thing are two places to change, and they drift.

Limits

• The check compares words, not meaning. Two rows may say the same thing in other words, or share a phrase and differ.
• On the six members today it finds no shared phrase. That shows the tables can be read, not that they do not overlap in meaning.
• No study compares one repository per problem with fewer, wider ones.