Each finding today was originally missed by reasoning from a sample, so these
assert DISC-WIDE invariants rather than one hand-picked file.
ui_surfaces_disc.rs (3 passing)
every_t8ad_on_the_disc_decodes -- all ~19216 surfaces; the old
256-grid model looked like 96%
lsta_count_equals_sprites_plus_primitives -- header counts T8aD AND PRMD,
64/64, which is what made the
count look unreliable
ratc_nesting_is_exactly_one_level -- nested records are leaves; zero
grandchildren disc-wide
mesh_consistency_disc.rs (1 ignored, deliberately)
shared_resources_decode_identically_in_every_container
The mesh test is written as the TARGET state, not a snapshot of the bug: a
resource shared by several containers must decode to the same bounds, which today
fails for 125 of 681 shared resources. Fixing the anchor scan makes it pass;
un-ignoring it is then the last step rather than a rewrite. It only compares
decodes that agree on vertex/triangle counts, so "found different geometry" stays
a separate question from "placed the same geometry differently".
All suites green: 81 lib + the disc guards, with 2 ignored.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
