diff --git a/scripts/zulip-monitor.sh b/scripts/zulip-monitor.sh
index e0c815c..d24f960 100755
--- a/scripts/zulip-monitor.sh
+++ b/scripts/zulip-monitor.sh
@@ -29,8 +29,9 @@ notify() {
   local stream_content="${severity} Zulip Monitor: ${msg}"
   curl -sf -X POST "${ZULIP_SITE}/api/v1/messages" \
     -u "${ZULIP_EMAIL}:${ZULIP_KEY}" \
-    -d "type=stream\&to=%5B7%5D\&topic=zulip-health\&content=$(python3 -c "import urllib.parse; print(urllib.parse.quote(str()))")" \
-    > /dev/null 2>&1 || true
+    -d "type=stream&to=%5B7%5D&topic=zulip-health&content=$(printf '%s' "${stream_content}" | python3 -c "import sys,urllib.parse; print(urllib.parse.quote_from_bytes(sys.stdin.buffer.read()))")" \
+    > /dev/null 2>&1 \
+    || echo "  WARN: stream alert to #agent-hub (zulip-health) delivery failed (curl exit $?)" >> "$LOG"
 }
 
 # ── Global: Zulip Server ──