diff --git a/services/agent-system/deploy.sh b/services/agent-system/deploy.sh
index 8c80d94..c0719c3 100755
--- a/services/agent-system/deploy.sh
+++ b/services/agent-system/deploy.sh
@@ -1,11 +1,21 @@
 #!/bin/bash
 set -e
 
+# Host-specific override (e.g. CONTROL_PLANE_URL for runtime-materializer) — same
+# convention as services/control-plane/deploy-local.sh. agent-system currently
+# only runs on piha, so this is hardcoded like control-plane hardcodes vps.
+COMPOSE_ARGS="-f docker-compose.yml"
+OVERRIDE_FILE="../../hosts/piha/runtime/agent-system/docker-compose.override.yml"
+if [ -f "$OVERRIDE_FILE" ]; then
+    echo ">>> Using override: $OVERRIDE_FILE"
+    COMPOSE_ARGS="$COMPOSE_ARGS -f $OVERRIDE_FILE"
+fi
+
 echo ">>> Validating docker-compose configuration..."
-docker compose config
+docker compose $COMPOSE_ARGS config
 
 echo ">>> Building and starting Agent System services..."
-docker compose up -d --build
+docker compose $COMPOSE_ARGS up -d --build
 
 echo ">>> Services status:"
 docker ps --filter "name=agent-system" --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}"