diff --git a/results-loop/PROTOCOL_UNIFIED.md b/results-loop/PROTOCOL_UNIFIED.md
index 02dcdcd..4723c85 100644
--- a/results-loop/PROTOCOL_UNIFIED.md
+++ b/results-loop/PROTOCOL_UNIFIED.md
@@ -269,3 +269,15 @@ pointless, learnable-B harmful, per-depth strands the gain.
     (c) overall at k>0 below k=0 (no rescue). If instead hard gains
     appear (>5 points), plan-shaped content is partially task-general —
     would weaken the task-local claim from LCB.
+
+--- Amendment to item 15 (2026-07-15 ~13:15): noise-s0 arm EXCEEDED
+prediction (b) upward: hard 50.0/53.6/50.0 at k=2/4/8 with easy 88-90%
+— nominally the best hard cells of the project (merge best 46.4; seed
+mean 37.5±5.5). Paired vs tied-alpha (only same-day per-item baseline):
+discordants 5-1/3-0/3-0 in noise-s0's favor, each k p≈0.22-0.25 at n=28
+— consistent direction, not individually significant. Denoising
+interpretation: training the loop to reach the fixed point from noise
+regularizes the content. SEED ARMS QUEUED (s1, s2, same recipe/eval,
+pre-registered here): if seed-mean hard(k=4) > 46.4 (the merge's best
+single cell), the recommended recipe gains noise-s0; if seed mean falls
+back into 37-46, it was a lucky seed.