diff --git a/tools/overhaul-selfgate/route-464-run.txt b/tools/overhaul-selfgate/route-464-run.txt
new file mode 100644
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+++ b/tools/overhaul-selfgate/route-464-run.txt
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+# #464 reproduction, part 2 (lead, 2026-09-03 night): the owner's "running
+# down the stairs" symptom. Teleport to the top of the cathedral stair line
+# facing down it (+y), hold the forward movement action and shoot ten frames
+# 150 ms apart while the chase camera is in motion, then release. Standing
+# frames (route-464-stairs.txt) showed nothing; this is the moving view.
+
+wait world-visible 180000
+sleep 4000
+
+command /teleloc F4180113 39.502899 19.589222 181.119247 1.000000 0.000000 0.000000 0.000000
+sleep 2000
+wait world-visible 60000
+sleep 3000
+screenshot 464-run-00-still 15000
+
+input down MovementForward
+sleep 150
+screenshot 464-run-01 15000
+sleep 150
+screenshot 464-run-02 15000
+sleep 150
+screenshot 464-run-03 15000
+sleep 150
+screenshot 464-run-04 15000
+sleep 150
+screenshot 464-run-05 15000
+sleep 150
+screenshot 464-run-06 15000
+sleep 150
+screenshot 464-run-07 15000
+sleep 150
+screenshot 464-run-08 15000
+sleep 150
+screenshot 464-run-09 15000
+sleep 150
+screenshot 464-run-10 15000
+input up MovementForward
+sleep 1500
+screenshot 464-run-11-stopped 15000
+
+# Once more from the mid pose, in case the seam is lower on the stair.
+command /teleloc F4180113 39.364658 21.293159 179.773422 1.000000 0.000000 0.000000 0.000000
+sleep 2000
+wait world-visible 60000
+sleep 3000
+input down MovementForward
+sleep 150
+screenshot 464-run-21 15000
+sleep 150
+screenshot 464-run-22 15000
+sleep 150
+screenshot 464-run-23 15000
+sleep 150
+screenshot 464-run-24 15000
+sleep 150
+screenshot 464-run-25 15000
+sleep 150
+screenshot 464-run-26 15000
+input up MovementForward
+sleep 1500
+screenshot 464-run-27-stopped 15000
+
+close-client