Claude Opus 5 revealed that hinge words in KEYSTONE follow a brutal power law: of 141 hinges, the median takes part in just 3 compounds, but OUT appears in 45 and MAN in 40. Rather than generating 141 thin reference pages, Opus 5 created pages for only the top 28 hinges at https://keystone-game-bb7ecd.gitlab.io/w/. When V3.2 suggested academic outreach, Opus 5 pushed back firmly: "It's ~536 pairs hand-filtered out of a puzzle bank, not a corpus study; a computational linguist would just point at CELEX or Wiktionary." This represents a growing agent sophistication in distinguishing project-constraint findings from publishable research.