is_standalone_hq threaded through CityRecord/CityPlacement via corporations LEFT JOIN (both readers); hubs = top-cap by population among non-HQ settlements (HUB_SPACING_DIAG_PX=64, HUB_CAP_MIN=6); exact-name collapse keeping lowest city_id with loud warn; nearest-point-on-polyline snap (SNAP_MAX_PX=8) with Junction edge-split preserving from<to via norm_edge, else A*-spur to nearest hub; FoundingOrientation::RailHeadFacing{bearing_degrees} assigned at degree>=3 junctions (octant bearing toward dominant incident edge), consumed by skeleton_gen railhead_edge() through the D-234b flush-frontage machinery; believability reader now honours baked settlement_class (stale hardcode since T-1075). 11 new targeted tests; existing suites green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
T-960: RoadGraphLayer (L2 edges/junctions, MaintenanceAuthority, rail flag, named routes) + SettlementLayer (name/position/size-class/is_capital/is_port from T-955 placements) as new Option fields on AtlasLayerResponse — T-1046 precedent; layer_proxy doc comment corrected (cascade runs through RoadGraph, client up_to ignored). T-949: new StarMapRequest/StarMapResponse (raw JSON passthrough of the star_map_data.json bake) + CityNamesRequest/CityNamesResponse (atlas_city_names via CityContextReader) with defense-in-depth Sol exclusion (GJ-0 system id OR settlement_wave='origin', D-236). Inbound demux extended with mandatory boolean discriminator fields (serde ignores unknown fields — optional-shape sniffing would be ambiguous); AtlasLayerRequest unchanged. SimBridge trait +2 methods, implemented on TcpBridge + LocalBridge. CityPlacement/CityRecord gained name/population/is_capital (BodyWorldState cache-hit path stays DB-free). ~30 new unit tests incl. demux disambiguation + Sol branches; gen_fixtures extended for road/settlement samples.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Hoshe + Tyre review of the micro-habitat-mosaic branch requested changes on two
data-confirmed correctness bugs plus follow-through. All addressed.
Blocking:
- C1 (voxel.rs): the mosaic re-granted vegetation the climate withheld — a frozen
ice world (Edict) read 61% vegetated tundra. The Grassland apply-gate now fires
only where the climate already grants cover (!Barren); a climatically-barren
district (frozen < -50C = surface ice/geology D-239 §2, or hyper-arid moisture<5,
both resolved to VegetationClass::Barren upstream) is skipped. Genuine tundra
(cold + moisture>=15) is Scrub upstream and still reaches the tundra palette via
the same !Barren path. believability.json regenerated: Edict vegetated_districts
39->0, Arbour 20->8 (its real cold-pole/arid districts revert to barren);
intra-class variety preserved (Arbour vegetation_classes 3, micro_habitat_distinct 2).
- H1 (bodies.py): biosphere Gate 0 keyed on `inhabited`, conflating settlement with
biosphere and force-Airless'ing uninhabited-but-alive worlds (D-247: worlds were
alive before humans). Gate 0 is now settlement-independent — keyed on
atmosphere/hydrosphere/planet_class. 24 uninhabited-alive worlds now classified
(was 0); GJ0g-1 (dense atm + rivers) -> NativeMirror. Split 122 Compatible :
121 Mirror; all 9 canon exemplars hold.
Follow-through:
- C2 (bodies.py + D-247): Gate 0 now reads planet_class (barren -> Airless) as
D-247's "+ planet_class" phrasing names. D-247 amended to record the actual
two-gate signal set (atm/hydro/planet_class habitability; economic_base_primary
chirality; settlement-independence).
- C3 (believability.rs): micro_habitat_distinct criterion relaxed to `== 0 || >= 2`
— the min-over-patches estimator makes K=3 unreachable against a dominant-entry
palette; K=2 provisional, Q-123 calibrates.
- C4 + H2 (D-246): amended to record the v1 scope cut — only the Soil-derived
vegetated/wet classes take the mosaic; material-driven families are `_ => false`
so Hardpan/Scree are authored but unreachable in v1; no elevation change in v1;
the mosaic OWNS the §8 climate->vegetation law for the classes it touches.
- H3 (voxel.rs): three dedicated mosaic-pass regression tests — C1 barren-respect,
§8 material-untouched + forest-textured, T-1040 no-water-without-channel.
- H4 (voxel.rs): relief_signal comment corrected to ~[-1,+1].
- H5 (bodies.py): frontmatter override now strips quotes + validates against the
4-value enum (warn-and-skip on typo).
systems.db regenerated + stamped (H1). believability golden regenerated (C1).
Full cargo test green; clippy -D warnings + ruff clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Sub-chunk mosaic that modulates the D-228 axes into a spatially-coherent,
relief/moisture-conditioned mosaic of micro-habitats within a terrain class —
the fix for the aliveness probe's uniform "Wetland 100%".
- seed.rs: SeedDomain::VoxelMosaic = 12 (append-only; pinned-discriminant guard)
- voxel.rs: five new D-228 axis values (Vegetation::{Meadow,Deadfall,Lichen},
TerrainMaterial::{Hardpan,Scree}); the per-family-gated mosaic pass
- detail_scatter.rs: voxel_mosaic() selection field (~8-64 m band)
- atlas/mosaic.rs: surface-class palette + integer-basis-point weighted selection
with moisture-affinity conditioning; temperate/native baseline palettes
- data/mosaic_constants.toml: source-canonical palette mirror
- believability.rs: micro_habitat_distinct metric + D-245 intra-class criterion
v1 scope (D-246-faithful): modulates vegetation + water only, in the vegetated
classes (Wetland/Forest/Grassland), so the D-239 §8 lithology law is untouched;
water is gated on the T-1040 has_active_channel hydrology rule. Material variants
(hardpan/scree) and the extreme classes are a §8-aware follow-up; the biome-aware
palette variants (T-1085 vocab) extend the baseline before generation.
Goldens regenerated (believability + derivation). Full server suite green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The voxel tier read flat (the D-245 "0–3 m, no hills to navigate by" bug):
family generators set elevation from elev_q at a compressed scale plus only ±4 m
micro-scatter, and detail-scatter's mid-scale relief (D-243 §2) only ever reached
the district tier (elev_q), never per-voxel elevation_m.
- detail_scatter.rs: extract the enveloped-fBm core; add `voxel_relief` at the
0.25–2 km octave band (vs the district 4–40 km band).
- voxel.rs: add the mid-scale relief post-dispatch in derive_voxel_column, body-global
SeedDomain::VoxelRelief seed (position-keyed), f64 truncated to integer metres (D-010).
Envelope = slope_q*3 + elev_q — the coarse heightmap gives slope_q ≈ 0 even on high
ground (Arbour max 13), so elevation must drive ruggedness. Flat families only
(Alluvial/Lava/BraidedDelta/Dune/Meander); the dramatic families already carry strong
internal relief and WaterBody stays at sea level.
- seed.rs: SeedDomain::VoxelRelief (D-224 domain separation).
- believability.rs: new `contrast.voxel_relief_m` metric — mean within-district elevation
range over a 2 km transect (a single 64 m sample chunk is narrower than the relief
band) + a "voxel relief" criterion.
Arbour @ yolo: voxel relief 5 m → 59 m, 6/8 → 7/8 criteria (remaining fail = the
Q-123 vegetation-denominator item). Edict 59 m. Golden regenerated; 1586 lib tests +
believability harness (determinism) pass; clippy -D warnings clean.
D-239 amended (T-1081); Q-123 item 4 updated. Deferred to Q-123/follow-up: the
provisional span + threshold, and a per-body hypsometric absolute-elevation model.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Stack review (Hoshe + Tyre) of T-1083+T-1082+T-1080. Every finding fixed or disposed:
- believability.rs sample_indices: replace the rejection-sampling loop (could stall
when n ≈ take) with deterministic partial Fisher-Yates — O(n), guaranteed
termination, distinct, sorted (Hoshe+Tyre).
- believability.rs drainage proxy: exclude water-body districts (all elev 0, no banks)
and require both wet + dry voxels — they were passing vacuously and inflating the
metric (Hoshe).
- believability.rs read_cities: log skipped malformed rows instead of dropping silently
(Hoshe).
- voxel.rs: add the 3 WaterBody zones to all_families_no_panic_at_extreme_positions +
fix the "7 families" comment (Hoshe).
- climate_constants.toml: bold warning that [moisture_gradient] is not loaded until
T-1032 — tune ClimateConstants::default() (Tyre).
- Q-123: record the per-zone "water renders wet" threshold + the land-relative
vegetation-present denominator as calibration items (Tyre + the open 7th criterion).
- T-1083 ticket: note the sampling-fix attribution (landed in the T-1082 commit).
Believability golden regenerated (sampler + drainage fixes moved the metrics).
clippy --all-targets -D warnings clean; 1580 lib tests + harness pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The water zones (OpenOcean/Lake/TidalFlat) fell through to the dry-land AlluvialPlain
fallback, so the sea rendered as dry forested land (the D-245 believability bug).
- voxel.rs: new MorphologyFamily::WaterBody (9th family) + generate_water_body,
dispatched from zone_to_family. Deep open water with a Shallow shoal band on the
district-anchored coast line (wider for shallower bodies); TidalFlat all-Shallow.
Seabed Rock (steep) / Sand (gentle) / Wetland (tidal mud); Vegetation::Barren;
water surface elevation_m = 0; seasonal Ice via derive_cover (frozen seas). Wetland
stays AlluvialPlain (it is land — a marsh, not open water). Integer/D-010. + 4 tests.
- believability.rs: fix a sampling bias in the T-1083 enforcer found while verifying
this — the metrics sampled the first 64 districts in BTreeMap order (a spatial corner,
e.g. all-ocean), which reported a forested world as "0 vegetated". Now a deterministic
seeded spread across the body (matches D-245's "randomly-sampled locations").
- D-239 amended (§5 8→9 families; §6 refined — the 3 water zones now dispatch to
WaterBody). Believability golden regenerated.
Probe (Arbour @ yolo): water-renders-wet 4/64 FAIL → 42/44 PASS; terrain-material
variety 1 → 4 PASS; 3/7 → 5/7 criteria. (Remaining fails — moisture gradient,
vegetation-present — are T-1080.)
clippy --all-targets -D warnings clean; 1579 lib tests + the harness pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Promote the throwaway aliveness probe into a committed, repeatable believability
protocol — the instrument that found T-1080/T-1081/T-1082.
- atlas/believability.rs (new): BelievabilityReport (serde) + analyze() computing
CONTRAST (per-field min/max/distinct for moisture/elev/slope/ocean over all
districts; distinct morphology zones / vegetation classes / terrain materials)
and COHERENCE (water-renders-wet, drainage-monotonic, vegetation-present) — never
marginal per-tile counts (the lesson: that called a broken uniform world ALIVE).
evaluate_criteria() = advisory D-245 checks; cascade_for_body()/seed_to_u64()
loader shared by the bin and the harness. Unit tests prove the metric tells a
uniform world (fails) from a varied one (passes) + determinism.
- bin/aliveness_probe.rs: refactored to a thin CLI over the module — prints the
body-level report + advisory D-245 criteria, drops the naive per-tile verdict.
- tests/believability_harness.rs (+ golden): runs the real cascade for Arbour
(temperate/ocean) + Edict (frozen/ice), asserts determinism, golden-snapshots
the reports (regression — updates when T-1080/T-1082 land), advisory criteria
with BELIEVABILITY_STRICT=1 to fail on unmet D-245 criteria. Skips if committed
data absent. x86_64 golden (cascade has f32 warp paths).
Baseline @ believability-v1: Arbour 3/7, Edict 3/7 criteria pass — moisture
gradient, water-renders-wet, drainage all FAIL (T-1080/T-1082); Edict vegetation
0/64 (blank tundra — the frozen 'reads dead' case D-245 targets).
PNG layer maps (ticket item 3) deferred — explicitly optional; the contrast +
coherence metrics are the core enforcer.
clippy --all-targets -D warnings clean; 1575 lib tests + the harness pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
jpmschweitzerandClaude Fable 5