Structural demo only — null topic, placeholder content, shows the natural length/shape of a /define output (genus+differentia in the definition: field, standard 300-char cap, no body).

writeNote-gate call, recorded: definition: reads EXTRA against canonical_basedoc_template (no canonical_pagedoc_template exists yet to check against). Resolved on disk rather than deleted: live BOLOGNA definitions (e.g. THREAD.md, KNOB.md) carry definition: as their own load-bearing field per the real /define skill’s shape — the whole point of this page is demonstrating that shape, so stripping the field would defeat the demo. Kept, on the corpus’s own precedent.