The port agent could not reproduce this page's 159/714/1520 from the capture it
holds: counting green>150..200 over a plate box it got 3-5x at every threshold.
The page named neither the region nor the predicate.
Stated now: the whole 1280x720 frame, and is_title.py's three-channel predicate
(g>130 & g-r>45 & g-b>45), which is why it counts far fewer pixels than a bare
green>N. That reproduces 1520/714/159 exactly.
Writing the method down exposed a defect the prose had hidden. The 159 floor
came from live-title-build4-no-plate.png at 1279x675 -- the game surface --
while the pulse frames are 1280x720, the whole display. Different crops,
silently compared.
Replaced with a same-run, same-geometry floor that was in the series all along:
154, flat for ~2 s immediately before the plate ramps in. So 'it never goes off'
now rests on one run in one geometry, at 714 against 154, which is where it
should have rested from the start. The port's independent ratio of 1:10.4-10.9
brackets this page's 1:9.6 and is the part robust to how anyone counts.
Two METHOD entries: a pixel figure needs its region and its predicate, and a
comparison between two counts needs them to share a geometry; and the port's
observation that a fix which overshoots leaves no symptom until a third change
needs the part it disabled.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
f24d831042