The 2026-07-27 amendment closed by naming the live question: does biome
un-summarisation need a stored layer, or does it ride the existing
sample-fresh-at-every-rung mechanism. A descent ladder answers a prior one:
it is not happening in any form, stored or derived.
One body, one land-anchored point, one capture per rung, no overlays, at the
panel's native 3440x1440. Ferrath's heightmap is 1024x512 over a 38,089 km
circumference -- 37.2 km per source pixel. Global draws at 35.267 km/gridunit,
about 1:1 with the source, and reads as a world. Region draws at 0.379 --
98x finer than anything stored -- and is a uniform colour field with dither.
District, at 0.0038, is ~9,800x finer and identical in character. The Atlas is
legible exactly where it samples the heightmap and flat everywhere it invents.
So the D-227 carve-out cannot be argued yet on any basis, disproven or
measured, because there is no artefact to store. Ruling: build the expansion
as a pure function first, following the mechanism that already exists
(D-255(f) mechanism B), measure that, and reopen storage only if the numbers
force it. T-1211 re-scoped, T-1212 retired as a gate with its measurement
moved downstream, T-1213 unblocked as the epic's first child.
Recorded with the same process note the previous amendment earned: this was
found by capturing the ladder and looking at it, after the goldens had been
failing for 15 commits with two of them passing against blank screens.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
jpmschweitzerandClaude Opus 5
aeab41555a