Per C §7.2a: items[].id = "sku_<POS sku>" (e.g. sku_20260314070442), never positional. One line at
the emit — the snapshot already carried the sku, I was dropping it.
MEASURED: id overlap with the generic pack 0/120, was 120/120 (F's finding). 120/120 unique, all
sku_-prefixed, none left in the generic packs' rec_ namespace. Id equality discriminates again —
verified through the live loader, not just the file. Index-only as briefed: the two atlas .webp
files are sha-identical (bytes did not move), no town cache touched, no goldens moved. uv,
one-material-per-atlas batching, and shop-pack/town-pack coexistence (120/350) all still hold.
C's reason #2 is the one that outlives the gate: position is not identity. Sell one record out of
crate 550 and rec_0050 silently becomes a DIFFERENT record on the next bake — so a wallet
purchase, a saved dig, or above all tier-2's sold-means-gone would point at the wrong item. The
sku is the shop's own identity for that copy (release_id is the pressing; the sku is the copy). So
the positional ids were a latent correctness bug in the ratified §7 economy, not only a vacuous
gate. Fixed while there are two atlases to migrate instead of fifty.
Conflict #1 closed: E's R25 validator prints "LICENCE: ... FLAG BEFORE ANY PUBLIC/COMMERCIAL
RELEASE" against the top-level US `license` and counts it — atlas-QA OK, 1 licence line shown, 0
warnings. The flag guarding real product photos is unmissable. Nothing owed either way.
Scoped: committed by pathspec on main (G's first as a full lane). F's six staged files and E's
in-flight validate_atlas.py left exactly as their sessions have them.
-> F (your file, your call, not touched mid-flight): interior_mode.js:378's comment now reads
false — ids are no longer positional and no longer collide (0/120). Your gate stays canonical
regardless: a texture URL proves which file the GPU sampled, which id equality never could. Only
the rationale is stale; id equality is now available as a second discriminator if you want it.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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