ssz: daylight is required of rooms that do not need it
DESIGN.md 38.6 concluded the three crinkliness modes were inert against the
circulation-deletion incentive. Two things were wrong with that measurement.
Its premise, 38.2, is retracted. And its script selected leaves with the
pre-39.4 prefix rule `type[:1].upper() in ("C","O")`, which sweeps every
programme room starting with c or o -- cr1, of1 -- in as circulation.
The simpler problem is that none of the three modes ever touched the leaves
ssz is about. quality_uncrinkliness reaches `if not crink` before any mode
logic that matters, so for a zero-exposure leaf: floor returns 0.01 (one
percent of a unit quality, multiplied into a product and weighed against a
whole leaf's cost -- inert); compact_ok is self-contradictory, announcing
that compact is not a defect and then returning the floor for the most
compact case of all; exempt_circulation reaches at most a third of them.
Measured: 0% / 0% / 0% / 21-33% of buried leaves rescued.
What the buried leaves are, now that 39.7 gives every space a usage: two
thirds of them are spaces that architecturally do not want a window --
stores, WCs, plant, corridors, covered courtyards -- scored identically
with a windowless bedroom. harbor 22/33, maple 33/46, health 9/18.
- crinkliness_mode="usage_daylight": daylight required of the uses a
person occupies (programme.DAYLIGHT_USAGES) and nothing else. Elsewhere
the factor is clipped on the compact side only, so being buried stops
being a defect while over-exposure still costs -- a crinkly leaf costs
envelope whatever it is used for. A windowless bedroom stays the hard
zero it is under stock: 11/11, 13/13, 9/9 still failing.
- compact_ok repaired to score the buried limit as compact, the behaviour
its name always claimed. It now rescues 100% including bedrooms, and is
kept as the upper-bound control, not a candidate.
- ab_ssz_search.py: the fixed-budget search A/B ssz's acceptance criteria
actually asks for. Every arm is optimised under its own objective and
re-scored under stock urb, because the permissive modes return 1.0
where stock fails and would otherwise win by deleting a fail category.
- ab_crinkliness_mode_ssz.py: prefix rule fixed, retracted premise
flagged in its docstring.
- 38.7's remaining claims from the retracted 38.2/38.3 corrected.
Default is unchanged ("urb"), byte-identical to all prior runs. Lint at
parity (46 pre-existing); tests 366 passed, 10 new, same 7 pre-existing
fixture failures (homemaker-py-bdf).
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MJ84Feep79Hhm3E4zZJmnB
2026-08-26 16:45:10 +00:00
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programme,seed,mode,urb_hard,urb_soft,urb_total,own_hard,own_soft,own_total,elapsed_s
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harbor-house,0,urb,16,39,55,16,39,55,80.2
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harbor-house,1,urb,22,45,67,22,45,67,88.7
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2026-08-26 16:46:59 +00:00
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harbor-house,2,urb,22,40,62,22,40,62,79.8
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harbor-house,0,floor,16,38,54,16,38,54,78.9
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2026-08-26 16:50:28 +00:00
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harbor-house,1,floor,21,46,67,21,46,67,82.9
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harbor-house,2,floor,20,41,61,20,41,61,79.0
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ssz: record the A/B result honestly -- not a pass at n=3
Fixed-budget A/B (3000 evals, 3 seeds, harbor + maple, every arm scored
under stock urb so the permissive modes cannot win by deleting a fail
category).
usage_daylight's paired hard-fail deltas are harbor [0,-1,-10] and maple
[0,+2,-10]. The means (-3.7, -2.7) flatter it: the whole signal is seed 2
in both programmes, and seed 2 is the seed where stock itself does worst.
Two seeds in three are flat or slightly worse. On that seed soft rises as
much as hard falls (harbor -10h/+9s, maple -10h/+15s), so totals go
62->61 on harbor and 120->125 on maple.
Because the scoring is stock, that is a genuine trade of hard failures for
soft ones, not a relabelling -- progress under the tiered comparator, where
n_hard is primary, but a fail against this issue's acceptance criterion
("without inflating soft"). Which yardstick is right is now the live
question, and it is gvb's question as much as ssz's.
usage_daylight stays default off; undecided, not refuted. Higher-power run
(urb vs usage_daylight, 10 seeds) is running.
The diagnostic half stands independent of the search A/B: the objective
demands daylight of two thirds of the buried population that does not want
it, and 38.6's contrary null was an artefact of three modes that never
touched those leaves.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MJ84Feep79Hhm3E4zZJmnB
2026-08-26 17:57:11 +00:00
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harbor-house,0,compact_ok,16,39,55,16,22,38,78.7
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harbor-house,1,compact_ok,20,44,64,20,20,40,82.6
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harbor-house,2,compact_ok,10,55,65,10,34,44,81.4
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harbor-house,0,exempt_circulation,18,37,55,18,34,52,77.2
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harbor-house,1,exempt_circulation,19,49,68,19,42,61,81.0
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harbor-house,2,exempt_circulation,21,42,63,21,37,58,79.0
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harbor-house,0,usage_daylight,16,39,55,16,30,46,79.9
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harbor-house,1,usage_daylight,21,51,72,21,30,51,82.3
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harbor-house,2,usage_daylight,12,49,61,12,35,47,81.8
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maple-court,0,urb,30,77,107,30,77,107,108.5
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maple-court,1,urb,23,83,106,23,83,106,109.0
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maple-court,2,urb,51,69,120,51,69,120,110.1
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maple-court,0,floor,35,74,109,35,74,109,109.1
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maple-court,1,floor,21,81,102,21,81,102,107.9
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maple-court,2,floor,50,69,119,50,69,119,110.3
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maple-court,0,compact_ok,30,78,108,30,47,77,109.8
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maple-court,1,compact_ok,25,82,107,25,43,68,108.6
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maple-court,2,compact_ok,52,70,122,52,33,85,105.9
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maple-court,0,exempt_circulation,30,72,102,30,66,96,105.1
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maple-court,1,exempt_circulation,25,81,106,25,70,95,106.6
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maple-court,2,exempt_circulation,52,70,122,52,61,113,112.6
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maple-court,0,usage_daylight,30,69,99,30,52,82,110.3
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maple-court,1,usage_daylight,25,73,98,25,56,81,107.9
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maple-court,2,usage_daylight,41,84,125,41,59,100,113.2
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