Files
Sylpheed/docs/re/data/nav-autorepeat-and-settled-b.txt
sylph-decoder 1eee838f30 re: three empty evidence cells filled in one run -- auto-repeat, B on a settled title, plate redraw
1. NO AUTO-REPEAT. A 2.0 s held DOWN moves the cursor exactly once. The counter
   passes its control first: a single 0.12 s tap gives exactly 1 spike and the
   hold gives 1, with the move spike at 0.0202-0.0220 against a 0.0003-0.0038
   noise floor. The port had flagged that the hedge 'at the durations tried' was
   carrying the claim, and it was -- nothing recorded a HELD direction.

2. B ON THE SETTLED TITLE DOES NOTHING. Twenty seconds after a
   delivery-confirmed B the screen is still the title with PRESS (A) BUTTON up,
   read off a capture that names itself. This is the run the previous attempt
   could not be: it waited for the plate pulse, the title's own settled
   signature, instead of pressing during the build-in.

3. THE PLATE IS RE-DRAWN after B from the menu -- pressed at 351.2 s, pulse
   detected at 358.5 s. That was the other unevidenced half of the B-on-menu row.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
2026-08-30 11:18:18 +00:00

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# Three empty evidence cells, one run. 2026-08-30.
# tools/re-capture/nav_repeat_and_b.py
#
# [332.5s] TITLE
# [338.0s] MENU (glyph 327)
# CONTROL: one 0.12 s DOWN tap -- must give exactly 1 spike
# control: 1 spike over 3.0 s
# diffs 0.0007 0.00104 0.00066 0.00102 0.0004 0.00119 0.00139 0.00211
# 0.02201 <- the move 0.00132 0.00057 0.00052 0.00079 0.00211
# 0.00052 0.0015 0.00043 0.00037 0.00377 0.00148
# TEST: hold DOWN for 2.0 s
# hold-2s: 1 spike over 4.0 s
# diffs 0.00103 0.00066 0.00049 0.002 0.00051 0.00098 0.00217 0.0003
# 0.02019 <- the move 0.00058 0.00042 0.00186 0.00376 0.00076
# 0.0004 0.0012 0.00247 0.00176 0.00143 0.00031 0.00074
# => control 1, hold 1 -> NO AUTO-REPEAT
# [351.2s] B pressed on the menu
# [358.5s] TITLE SETTLED (plate pulse detected, glyph 968) -- pressing B
# B delivered
# [380.2s] 20 s after B on the SETTLED title: 4.3 % of pixels differ from
# the moment of the press, glyph 730
#
# 1. NO AUTO-REPEAT. A held direction moves the cursor ONCE. The move spike is
# 0.0202-0.0220 against a noise floor of 0.0003-0.0038, a 5x separation, and
# the CONTROL (a single tap) returns exactly 1 -- so the counter was shown to
# count before it was asked to count nothing.
# Reach: one hold, 2.0 s, DOWN, on the main menu.
#
# 2. B ON THE SETTLED TITLE DOES NOTHING. Twenty seconds after a
# delivery-confirmed B, the screen is still the title WITH PRESS (A) BUTTON
# up -- read off the capture, which names itself. The 4.3 % that differs is
# the plate's own pulse and the light sweeps; glyph 730 sits in the
# plate-pulse band 714..1520 (plate-pulse-measured.md).
# This is the run the previous attempt could not be: the press waited for
# the plate pulse -- the title's own settled signature -- instead of landing
# during the build-in.
#
# 3. THE PLATE IS RE-DRAWN after B from the menu. B on the menu at 351.2 s;
# the plate pulse was detected at 358.5 s, ~7 s later. That was the other
# unevidenced half of the 'B on the main menu' row.