# Predeclared ridge-lightwell assessment

Root seed 0. Written before the assessment, after isolated component probes and
one development building. Preserve all outcomes and earlier evidence. No input
replacement or success-only resampling. This is a self-authored exercise.

Supported roof domain: existing 9/11/13 room bays, rise courses 1/2, clipped ends
0..3 retaining the original residual-gable limits. `RidgeLantern` has a five-cell
bearing width, lengths 5/7/9, one-cell cap overhang, and -4..6 vertical extent
relative to its ridge mount. Required mounts fail if no compatible site exists;
optional omissions state why. Hosts reserve mounts before optional dormers and
use only actual solid roof bearings. Contact/edit/relief limits are unchanged.

Rerun the complete 1.6 recipe in new folders: `building_quality` (24 clients,
64 independent pairs, 16 stress inputs), `building_space` (32 inputs),
`building_detail` (20), `building_holdout` (16), `building_craft` (24).
Those 180 supported inputs and 16 stress inputs are now regression evidence.

Add `building_lantern`: eight `lantern_house` seeds 0..7 and 32 pairings of 16
independently frozen fields with structure seeds 1 and 6. Environment seed is
7100 + 100 * root_seed + index. Slopes independently take -0.025/0/0.025 and
-0.02/0/0.02, wave amplitude 0/0.35, base 4. Blend with a small radial field;
indices 8..15 additionally transform that expression and layer a second masked
wave. Clamp elevations 2..6; water is independently None/4/5. Inputs 8..15 are
reserved compositions not used for primitive development. Freeze every field
and semantic digest before building placement. Do not edit a field for a house.

Export client seeds 0,1,4,7 and pairs (0,1),(3,6),(10,1),(15,6), plus the unchanged
earlier corpus selections. Record all candidate outcomes, optional omissions,
mount-screening results, edits, time, current lightwell cells, and paired queries.
Measure principal signatures separately from contact signatures and palette.
The existing principal signature already includes the roof's actual descendant
geometry; no signature definition change is needed for this feature.

Render five representative final buildings from three sides with interior,
loft, circulation and lightwell cuts where applicable. Inspect the real images
and preserve development renders/failures. Run all previous tests unchanged,
new positive/damage/rollback/removal tests, default and seed-1 CLI, two hash-seed
replays and the generation-only native-import guard. Do not claim a browser run.