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settled-reach/server/tests/golden/believability.json
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jpmschweitzerandClaude Fable 5 e141a595b1 feat(simulation): believability gate learns basin-direction variety (T-964, D-245)
A real D-245 gate-shape strengthening, not just a test: the D-256/T-1174
finding proved the believability golden byte-identical under a total
all-North basin_direction collapse — every scalar contrast field is
structurally blind to the one field that regressed. ContrastMetrics
gains land_districts and basin_directions_distinct (both over ALL
districts, no new derive calls — the evidence-backed pick over the
voxel-transect proxy, which washes out at production sample density),
and evaluate_criteria gains 'basin direction variety': pass when
land_districts == 0 (the drained-body guard — an all-ocean body has no
cells that can cast a D8 vote per the aggregator's own exclusion rule,
so a uniform default is legitimate, mirroring the file's existing
nothing-to-vary idiom) or distinct >= 2. Negative test proves the
criterion catches the land-bearing all-North regression; vacuous-pass
test proves the waterworld guard. Golden regenerated and rerun-stable;
both validation bodies (Arbour, Edict) pass at distinct=2.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-25 18:59:13 +02:00

89 lines
1.9 KiB
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[
{
"body_id": "GJ338Bd",
"world_seed": 13200299156134074780,
"district_count": 2048,
"voxel_sampled_districts": 64,
"contrast": {
"moisture_q": {
"min": 17,
"max": 97,
"distinct": 75
},
"elev_q": {
"min": 0,
"max": 100,
"distinct": 101
},
"slope_q": {
"min": 0,
"max": 27,
"distinct": 28
},
"ocean_fraction_q": {
"min": 0,
"max": 100,
"distinct": 47
},
"morphology_zones": 9,
"vegetation_classes": 4,
"terrain_materials": 3,
"voxel_relief_m": 28,
"micro_habitat_distinct": 3,
"land_districts": 698,
"basin_directions_distinct": 2
},
"coherence": {
"water_districts": 46,
"water_districts_wet": 45,
"drainage_samples": 0,
"drainage_monotonic": 0,
"vegetation_samples": 64,
"vegetated_districts": 7
}
},
{
"body_id": "GJ244Ad",
"world_seed": 13200299156134074780,
"district_count": 2048,
"voxel_sampled_districts": 64,
"contrast": {
"moisture_q": {
"min": 0,
"max": 24,
"distinct": 25
},
"elev_q": {
"min": 0,
"max": 100,
"distinct": 101
},
"slope_q": {
"min": 0,
"max": 15,
"distinct": 15
},
"ocean_fraction_q": {
"min": 0,
"max": 100,
"distinct": 36
},
"morphology_zones": 6,
"vegetation_classes": 3,
"terrain_materials": 2,
"voxel_relief_m": 22,
"micro_habitat_distinct": 0,
"land_districts": 1602,
"basin_directions_distinct": 2
},
"coherence": {
"water_districts": 19,
"water_districts_wet": 19,
"drainage_samples": 0,
"drainage_monotonic": 0,
"vegetation_samples": 64,
"vegetated_districts": 0
}
}
]