homemaker-layout/experiments/results/ab_ssz_power.csv
Claude bb27a5e548
ssz: 61% of reported crinkliness fails are not defects; two corrections
Correction 1: 38.8's A/B scores every arm under stock urb, which is only
sound if stock is ground truth -- and stock is what this section shows is
miscalibrated. Scoring the repair under the objective it repairs penalises
it for repairing. That result is not evidence against usage_daylight.

The measurement that matters needs no search: are the emitted failures
true? audit_crinkliness_truth.py classifies every stock crinkliness fail by
the leaf's declared usage. 164 of 271 (61%) are reported against spaces
that want no daylight -- stores, WCs, plant, corridors, covered courtyards
-- and it holds on evolved artefacts (maple generated.dom: 64%), not just
constructed seeds. Under value *= 0.5 ** len(failures) each one halves the
fitness of a design that did nothing wrong.

Correction 2: usage: is the wrong key, and usage_daylight as written
mis-keys it. 39.7 established usage: as an ACCESS-requirement class.
"Needs no special access" and "needs no window" are different questions,
and the corpus separates them: usage: none is Waiting Room, Reception,
Reception Office, Entrance Foyer -- a waiting room plainly wants daylight
and DAYLIGHT_USAGES exempts it. The usage: bedroom half is right, but by
luck of where the access axis happened to fall.

The audit is robust to that error (61% -> 57% if none is reclassified), so
the finding stands; the design does not. Daylight needs its own declared
per-space axis, decided by the programme author as usage: was.

usage_daylight stays default off and is not the shipping fix. The
compact-side clip is the right shape for the factor, so the mechanism is
retained pending a daylight: attribute to key it on.

Higher-power A/B stopped: it was chasing a score against a flawed objective
with a mis-keyed fix.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MJ84Feep79Hhm3E4zZJmnB
2026-08-26 18:07:01 +00:00

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programme,seed,mode,urb_hard,urb_soft,urb_total,own_hard,own_soft,own_total,elapsed_s
harbor-house,0,urb,16,39,55,16,39,55,76.4
harbor-house,1,urb,22,45,67,22,45,67,80.8
harbor-house,2,urb,22,40,62,22,40,62,76.6
harbor-house,3,urb,15,48,63,15,48,63,75.2
harbor-house,4,urb,17,42,59,17,42,59,83.9
harbor-house,5,urb,29,42,71,29,42,71,81.7