<p>It exists so that "where does this go in the store" is answered in one place rather than as a string literal in each module that writes there. It used to answer a harder question - which top-level names are reserved, so that a tenant cannot be called one - in four copies of one {@code Set.of(...)} across three modules, each carrying a "must stay in sync" comment. The copies drifted exactly where a comment cannot enforce anything, and the console listed {@code audit} as a tenant with working ...