sylph-decoder 304ce9efaa re: forced_backdrop DECIDES 62 of its 80 instances, not 6 ...

The port agent raised that every check this corpus ran on the rule measured
its STABILITY -- that no verdict moved -- and never its NECESSITY. It is
right, and the distinction is load-bearing.

New probe: recompute derived_paint_order with the forced_backdrop fallback
removed and diff the orders, over every dat/*.pak.

  80 forced instances = 62 the rule DECIDES + 18 it merely AGREES with.

The 80 reproduces the page's own census exactly, which is the check that the
probe sees the same set. Every one of the 62 deciders is keyless; no keyed
element is ever moved.

Of the 18 that agree, 14 have their own key -- and that includes the
palogo_eff0.prm 'control', whose implied key is 0x00000000 and would sort it
first regardless. So that agreement is the rule reproducing our crate, not the
game confirming the rule. The port saw this before I did. The remaining 4 are
keyless but inert: every element on those two builds is forced, so the
tie-break gives the same order either way.

Confirms the port's GP_TITLE finding from the other side: entries 10/11/13/14
unchanged without the rule, entries 12/15 decided by it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v

2026-08-30 06:53:16 +00:00

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