Full Idea
A 'minimal' truth-maker is the 'smallest' portion of reality required to make a given proposition true.
Gist of Idea
A truthmaker is the minimal portion of reality that will do the job
Source
Jonathan Tallant (Metaphysics: an introduction [2011], 01.2)
Book Reference
Tallant,Jonathan: 'Metaphysics - an introduction' [Continuum 2011], p.6
A Reaction
A nice suggestion. This seems to make Ockham's Razor an integral part of the theory of truth-makers. I would apply the same principle to explanations. An Ockhamist explanation is what explains the puzzling thing - and nothing else.