diff --git a/agent_v0/server_v1/replay_memory.py b/agent_v0/server_v1/replay_memory.py
index 62f709a47..65df58e54 100644
--- a/agent_v0/server_v1/replay_memory.py
+++ b/agent_v0/server_v1/replay_memory.py
@@ -332,9 +332,21 @@ def memory_record_success(
         logger.debug("memory_record_success: coords non numériques, skip")
         return False
     if not (0.0 <= x_pct <= 1.0 and 0.0 <= y_pct <= 1.0):
-        logger.debug(
-            "memory_record_success: coords hors [0,1] (%.3f, %.3f), skip",
+        logger.warning(
+            "memory_record_success: coords hors [0,1] (%.3f, %.3f), skip — "
+            "probable input parasite (target='%s' method=%s)",
             x_pct, y_pct,
+            (target_spec.get("by_text") or "")[:60], method,
+        )
+        return False
+    # Rejeter (0.0, 0.0) exact : coin haut-gauche = signature de bruit
+    # (curseur NoMachine, événement OS parasite, listener pynput sans clic
+    # humain réel). Cf. bug observé replay_sess_63a1313b 2026-05-24 18:31-18:32.
+    if x_pct == 0.0 and y_pct == 0.0:
+        logger.warning(
+            "memory_record_success: coords (0.0, 0.0) rejetées — "
+            "signature de bruit (target='%s' method=%s)",
+            (target_spec.get("by_text") or "")[:60], method,
         )
         return False