Fr0zkaandClaude Opus 5
58e61cdefa
Jahni chose: make the (0,0) column join the shafts it passes, so VerticalShafts behaves like the other seven archetypes. Built, and it works as far as it goes -- the spine is now the LARGEST air component in 13 of 16 seeds (share up to 0.81, was 0.096 and never largest). ⚠️ IT DOES NOT MEET THE ACCEPTANCE CRITERION. arrival->departure is still 1/16. Reported as a failure rather than dressed up, because the criterion was the measured law, not "the code was written". The test now prints ACCEPTANCE arrival->departure: FAIL (1/16 seeds pass) so it cannot be quietly forgotten. Why it is insufficient, and it is structural: the spine only joins its own 3x3 cell neighbourhood, while passage mouths land 60-200 voxels from (0,0). The departure network is unreachable from the spine in all 16 seeds. Joining the hub to its neighbours does not help if the rest of the graph never reaches the hub. Part A diagnosis (seed 1337, margin 0, step 2, radius 192): baseline 30 components, largest .220 roughness 0 17 components, largest .226 connector radius 8 29 components, largest .229 H1 is real but partial: roughness fragments the space (13 of the 30 components are noise pockets), yet widening connectors past the proven roughness bound barely moves it. So roughness is NOT what severs the network -- the largest component sits at ~0.22 in every variant, which is the signature of a graph below its percolation threshold. The lever is topology, not radius. H2 (the hardcoded 1.6 pair cutoff) went untested. Implementation notes: the spine is added ONLY as a connector endpoint, not as a carving shaft -- VF_ApplyOriginSpine remains sole owner -- and is excluded from ledge placement. Spine connectors use radius 6.625, above the proven roughness supremum of 5.625 (sup|FBM| = 1.5, not 1.0). SpineRadius is threaded through BuildVerticalShaftStack, not hardcoded. Op-stack mirror bit-identical over 20,000 samples, 0 box-verdict violations. LayoutOrderIndependence green. Build clean, 19 succeeded / 0 warnings / 0 failed. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Bp7FxoQcSoiuhxjuLr6aBM