The instrument panel

A committed aesthetic in the sense of skills/committed-aesthetic/SKILL.md: every rule below is checkable, and every value was read out of the source — packages/board/public/index.html and great_cto-site/styles.css — rather than chosen to write this document.

The subject is an instrument, not a brochure. One person reads it to decide what a machine may do next. Everything below follows from that.

Rule 0 — this is the CATEGORY default, and calling it ours was wrong

The first version of this file opened "this is ours, not a default". Measured against a real corpus on 2026-09-01, that is false, and the correction matters more than anything below it.