Planner multi-core fan-out BUILT 2026-09-17 (7497 plan 61.5 s -> 27.3 s, 2.25x, whole-plan identity proven on real fixtures); the full ratified five-lever performance conversation (Aristide 2026-09-15) stands recorded below: bigger box = money question, PyPy = measured trial, numpy/C rewrite parked, caching mostly done

kerfmaster pin list · UI / workflow decisions

recordmixedStates what the code does today. Auditable against the code — this is the only type that can go stale.

Content last changed 2026-09-17 — computed from the item itself, not typed.