port: the third clock was in my own enumeration and I did not wire it

Last iteration I enumerated three free-running clocks, wrote that the leaf is
pinned only by --leaf-time, then tested reproducibility without passing
--leaf-time and concluded nothing free-runs on the menu path. The answer was one
paragraph above the experiment that contradicted it.

My own flagged weakness found it: deliberate wall-clock variation via
--script=wait:N, putting the capture at t=96 units against t=369. Spin pinned
only, wait 0.5 vs 5.0 differs by max 91.19 per channel; with --leaf-time=0 added
it is byte-identical. draw_leaf_for is ptloop01/ptloop02, present on main_menu and
not just the title, which is why that row drifted.

verify-capture passed --loop-phase=0 and not --leaf-time=0 -- I fixed the clock I
had been bitten by and left the one I had merely listed. Enumeration without
follow-through fails exactly like no enumeration.

Both are now pinned at all six render sites. main_menu returns 13.21 across three
runs and two renders after different waits are byte-identical.

The number moved 13.26 -> 13.21 and that is NOT an accuracy improvement: pinning
the leaf at phase 0 puts ptloop01/02 at one specific pose rather than wherever the
wall clock left them. A different configuration, now reproducible. Which pose the
game shows at rest is not settled by this.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N7FiFFFwbvG2uxdcEh8HyF

docs/port/DECISIONS.md

@@ -9,7 +9,7 @@ dies, which is what this file is for.
 
 <!-- INDEX: generated by tools/port/index-decisions -- do not hand-edit -->
 
-174 sections. Search this before re-deriving anything.
+175 sections. Search this before re-deriving anything.
 
 * [P0 — the exporter, 2026-08-28](#p0--the-exporter-2026-08-28)
 * [P1 — Godot draws the screen, 2026-08-28](#p1--godot-draws-the-screen-2026-08-28)
@@ -185,6 +185,7 @@ dies, which is what this file is for.
 * [Counting the fallbacks instead of inspecting them — and one I had misjudged](#counting-the-fallbacks-instead-of-inspecting-them--and-one-i-had-misjudged)
 * [The oracle harness was nondeterministic, and I quoted its numbers for a dozen iterations](#the-oracle-harness-was-nondeterministic-and-i-quoted-its-numbers-for-a-dozen-iterations)
 * [Answering "an unenumerated set" — don't enumerate, test](#answering-an-unenumerated-set--dont-enumerate-test)
+* [🔴 The third clock was in my own list, and I did not wire it](#the-third-clock-was-in-my-own-list-and-i-did-not-wire-it)
 
 <!-- /INDEX -->
 ## P0 — the exporter, 2026-08-28
@@ -9968,3 +9969,53 @@ this time the proxy was my own tool's output format.
 ⚠️ Conclusion unchanged: 2.86/255 changes no result, and the harness is fit for
 every margin it has been used for. What was wrong was the claim's basis, not the
 claim.
+
+## 🔴 The third clock was in my own list, and I did not wire it
+
+Last iteration I enumerated three free-running clocks, said the leaf was pinned
+only by `--leaf-time`, then tested reproducibility **without passing
+`--leaf-time`** and concluded *"nothing free-runs on the menu path"*. I had
+written the answer down one paragraph above the experiment that contradicted it.
+
+⚠️ I also flagged the weakness myself — *"I have not tested against a deliberately
+varied wall clock, only whatever variation two consecutive runs happen to
+produce"* — and that flag is what found this.
+
+### Deliberate variation finds it immediately
+
+`--menu=main_menu --script=wait:N --loop-phase=0`, varying N so the capture lands
+at genuinely different clock positions (t = **96 units** at N=0.5, **369** at
+N=5.0):
+
+| | max per-channel |
+|---|---|
+| wait 0.5 vs 5.0, spin pinned only | **91.19** |
+| …with `--leaf-time=0` added | **0** |
+
+✅ Byte-identical. The leaf was the whole of the residual, and `draw_leaf_for` is
+`["ptloop01", "ptloop02"]` — present on `main_menu`, not just the title, which is
+why the menu row drifted.
+
+🔴 **`verify-capture` passed `--loop-phase=0` and not `--leaf-time=0`.** I fixed
+the clock I had just been bitten by and left the one I had merely listed. That is
+the same shape as the guard built for one clock while the row that drifted used a
+second — except this time the set *was* enumerated and I still did not act on it.
+**Enumeration without follow-through fails exactly like no enumeration.**
+
+### Now pinned, and verified by frame rather than by statistic
+
+`verify-capture` pins both at all six render sites. `main_menu` returns **13.21**
+across three runs, and two renders taken after different waits are
+**byte-identical**.
+
+⚠️ **The number moved, 13.26 → 13.21, and that is not an accuracy improvement.**
+Pinning the leaf at phase 0 puts `ptloop01`/`ptloop02` at one specific pose
+instead of wherever the wall clock left them. It is a *different configuration*,
+now a reproducible one. Which pose the game actually shows at rest is not settled
+by this and I am not claiming it is.
+
+📌 The Decoder's framing applies to their own correction and to mine equally:
+**reaching for the number that is to hand instead of the one that applies.** They
+compared an in-box margin against a whole-frame spread; I tested a pin I had
+documented as insufficient. Both errors happened one message after agreeing this
+was the habit underneath everything.

tools/port/verify-capture

@@ -144,20 +144,20 @@ for row in "${MAP[@]}"; do
   if [ ${#want[@]} -gt 0 ] && ! printf '%s\n' "${want[@]}" | grep -qx "$name"; then continue; fi
   [ -f "$cap" ] || { printf '%-17s %s\n' "$name" "no capture"; continue; }
   if [ "$pose" = band ]; then
-    godot --path port --resolution 1280x720 -- --loop-phase=0 "--screen=title" --overlay=press_start \
+    godot --path port --resolution 1280x720 -- --loop-phase=0 --leaf-time=0 "--screen=title" --overlay=press_start \
       --time=3.95 "--capture=$OUT/$name.full.png" >"$OUT/$name.log" 2>&1 || true
     [ -f "$OUT/$name.full.png" ] && convert "$OUT/$name.full.png" \
       -crop 1279x120+0+520 +repage "$OUT/$name.render.png"
   elif [ "$pose" = focus ]; then
-    godot --path port --resolution 1280x720 -- --loop-phase=0 "--menu=main_menu" "--focus=$forced" \
+    godot --path port --resolution 1280x720 -- --loop-phase=0 --leaf-time=0 "--menu=main_menu" "--focus=$forced" \
       --script=wait "--shots=$OUT/$name" >"$OUT/$name.log" 2>&1 || true
     [ -f "$OUT/${name}_00_start.png" ] && cp "$OUT/${name}_00_start.png" "$OUT/$name.render.png"
   elif [ "$pose" = menu ]; then
-    godot --path port --resolution 1280x720 -- --loop-phase=0 "--menu=$name" --script=wait \
+    godot --path port --resolution 1280x720 -- --loop-phase=0 --leaf-time=0 "--menu=$name" --script=wait \
       "--shots=$OUT/$name" >"$OUT/$name.log" 2>&1 || true
     [ -f "$OUT/${name}_00_start.png" ] && cp "$OUT/${name}_00_start.png" "$OUT/$name.render.png"
   elif [ "$pose" = plate ]; then
-    godot --path port --resolution 1280x720 -- --loop-phase=0 "--screen=title" --overlay=press_start \
+    godot --path port --resolution 1280x720 -- --loop-phase=0 --leaf-time=0 "--screen=title" --overlay=press_start \
       --time=3.95 "--capture=$OUT/$name.render.png" >"$OUT/$name.log" 2>&1 || true
   elif [ "$pose" = t357 ]; then
     # 🔴 NO `--time` HERE EITHER, and the row's note used to claim otherwise.
@@ -177,7 +177,7 @@ for row in "${MAP[@]}"; do
     #
     # So: pose at the settle, which is what was actually being measured, and let
     # the leaf loop carry the sweeps' phase.
-    godot --path port --resolution 1280x720 -- --loop-phase=0 "--screen=$name" \
+    godot --path port --resolution 1280x720 -- --loop-phase=0 --leaf-time=0 "--screen=$name" \
       "--capture=$OUT/$name.render.png" >"$OUT/$name.log" 2>&1 || true
   else
     # NO `--time`. It used to pass `--time=99` as an idiom for "settled", and
@@ -189,7 +189,7 @@ for row in "${MAP[@]}"; do
     # that accident. Now that `--time` is honoured, asking for it explicitly
     # would pose past the end of every group, so the request is simply dropped
     # and the settled pose asked for by omission.
-    godot --path port --resolution 1280x720 -- --loop-phase=0 "--screen=$name" \
+    godot --path port --resolution 1280x720 -- --loop-phase=0 --leaf-time=0 "--screen=$name" \
       "--capture=$OUT/$name.render.png" >"$OUT/$name.log" 2>&1 || true
   fi
   [ -f "$OUT/$name.render.png" ] || { printf '%-17s %s\n' "$name" "render failed"; continue; }