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The reading-anchor hook is the sole cross-engine scroll writer and the
survivor of the GUI-latency sweep's upscroll-reversal chase. The W4a
instrumentation legitimately inflated it past 1140: the signed-shift
grow/shrink probe (classifier arm) and the renderedScroll gate-clock rekey
(w4a-gate-1 arm), both carrying load-bearing provenance inline.
Per Eva's ruling, take the scoped override NOW and hold the structural
split until the arms in flight against this file settle — splitting a hook
whose provenance comments are themselves load-bearing (the anchor-margin
lesson lives in it) mid-chase is how a guard gets stripped. Exit condition
recorded at the override site: once #1662's fate is decided, the diagnostic
emits get stripped or gated and the mid-history corrector + band walk split
into a sibling module.
This also retires the --no-verify size bypass the classifier commit
(9df6d92e, 1156 lines) shipped under: the limit now covers it honestly, and
Sami independently flagged the same blocker on the branch.
Co-authored-by: Tyler Longwell <tlongwell@block.xyz>
Signed-off-by: Tyler Longwell <tlongwell@block.xyz>