re: RETRACT -- a Canary config dump is the FILE, not the run

Refuted my own evidence with a direct test. The A-press fault page cited the
faulting run's dumped logged_profile_slot_0_xuid = "" as proof no profile was
signed in. Xenia prints its config dump BEFORE applying command-line overrides:
in a run launched with --apu=sdl --hid=file --mute=true --log_mask=13, the dump
says apu="any", hid="any", mute=false, log_mask=0. Four for four.

So the dump is a statement about xenia-canary.config.toml and nothing else, and
this page cannot know the faulting run's profile state. Anything in the corpus
citing a config dump as evidence of what a run did is making the same mistake;
to know a run's settings, record its argv.

Survives: the mechanism (swallow -> unbounded pump -> failed allocation ->
fault), which rests on the [RE-INPUT] counter and the crash dump's registers;
and canary-scripted-input-traps.md section 3's measured sign-in-dialog claim,
which has a capture behind it.

Also records the port's base-plus-glow mechanism for the plate, which explains
why the pulse floor is 714 rather than the plate-absent 159 -- ptbtn00's fade at
t=244 is an exit ramp so the base holds at 255 while the screen is held, and
ptbtn00f's 0->80->0 glow draws over it. Marked as agreeing with the measurement,
not confirming it: their renderer is not an oracle. It does rule out a glow-only
plate, which could not produce a non-zero floor.

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

tools/re-capture/wait_and_press.py

@@ -0,0 +1,90 @@
+#!/usr/bin/env python3
+"""Wait for the interactive title, press Ⓐ once, and watch what happens.
+
+The A/B this exists for: does a signed-in profile prevent the Ⓐ fault
+(`docs/re/structures/title-a-press-fault.md`)? A press sent before the title is
+up tests nothing, so the wait is a **control on the press**, not a convenience —
+`is_title.py`'s glyph counter has to clear its threshold first.
+
+    wait_and_press.py OUTDIR [wait_s] [watch_s]
+
+🔴 The first version of this used a SINGLE frame over a glyph threshold, and it
+fired on the intro MOVIE — twice, voiding both legs of an A/B. The movie throws
+green flashes of 1298…5433 lasting under a second, which clears any threshold the
+title also clears. This is the same trap `is_title.py` records `screen_id.py`
+falling into (the SQUARE ENIX logo called "title" 151 s in).
+
+The title is distinguished by the **plate's pulse**, not by brightness: a
+sustained oscillation that never drops below ~700 and never exceeds ~1600
+(`docs/re/structures/plate-pulse-measured.md` measured 714…1520). So the detector
+requires HOLD consecutive samples inside a band. A movie flash is 2–4 samples and
+overshoots the top of it.
+"""
+import os
+import subprocess
+import sys
+import time
+
+import numpy as np
+from PIL import Image
+
+OUT = sys.argv[1]
+WAIT = float(sys.argv[2]) if len(sys.argv) > 2 else 420
+WATCH = float(sys.argv[3]) if len(sys.argv) > 3 else 90
+W, H = 1280, 720
+NEED = 500          # the plate is up; the floor with no plate is 159
+CEIL = 2500         # a movie flash overshoots this; the plate peaks at ~1520
+HOLD = 12           # consecutive in-band samples (~3 s at 4 Hz)
+
+
+def _open():
+    return subprocess.Popen(
+        ["ffmpeg", "-loglevel", "error", "-f", "x11grab", "-draw_mouse", "0",
+         "-video_size", f"{W}x{H}", "-i", ":98", "-r", "4",
+         "-f", "rawvideo", "-pix_fmt", "rgb24", "-"],
+        stdout=subprocess.PIPE, bufsize=W * H * 3 * 2)
+
+
+def glyph(a):
+    r, g, b = a[:, :, 0], a[:, :, 1], a[:, :, 2]
+    return int(((g > 130) & (g - r > 45) & (g - b > 45)).sum())
+
+
+p, n, t0, seg = _open(), W * H * 3, time.time(), time.time()
+log = open(f"{OUT}/series.tsv", "w")
+log.write("# t_s\tglyph\tmean\tphase\n")
+phase, pressed_at, streak = "wait", None, 0
+while True:
+    el = time.time() - t0
+    if phase == "wait" and el > WAIT:
+        print(f"TITLE NEVER APPEARED in {WAIT}s"); break
+    if phase == "watch" and time.time() - pressed_at > WATCH:
+        print("watch window complete"); break
+    if time.time() - seg > 30:
+        p.kill(); p = _open(); seg = time.time()
+    buf = p.stdout.read(n)
+    if len(buf) < n:
+        p.kill(); p = _open(); seg = time.time(); continue
+    a = np.frombuffer(buf, np.uint8).reshape(H, W, 3).astype(int)
+    c = glyph(a)
+    log.write(f"{el:.3f}\t{c}\t{a.mean():.3f}\t{phase}\n"); log.flush()
+    if phase == "wait":
+        streak = streak + 1 if NEED <= c <= CEIL else 0
+    if phase == "wait" and streak >= HOLD:
+        Image.fromarray(a.astype(np.uint8)).save(f"{OUT}/before-press.png")
+        print(f"TITLE UP at {el:.1f}s (glyph {c}, {streak} in-band samples) — pressing A")
+        subprocess.run([sys.executable,
+                        os.path.join(os.path.dirname(os.path.abspath(__file__)), "pad.py"),
+                        "tap", "A", "0.12"], check=False)
+        pressed_at = time.time(); phase = "watch"
+p.kill()
+# a last frame, whatever state it ended in
+try:
+    p2 = _open(); buf = p2.stdout.read(n); p2.kill()
+    if len(buf) == n:
+        a = np.frombuffer(buf, np.uint8).reshape(H, W, 3).astype(int)
+        Image.fromarray(a.astype(np.uint8)).save(f"{OUT}/after-watch.png")
+        print(f"final glyph {glyph(a)} mean {a.mean():.1f}")
+except Exception as e:
+    print("final grab failed:", e)
+log.close()