--- /data/projects/arknights/omv-dijiang/works/sing-box/option/group.go	2026-03-05 11:39:22.629561767 +0800
+++ /data/projects/arknights/omv-dijiang/works/core/option/group.go	2026-03-05 13:14:27.190665236 +0800
@@ -10,6 +10,7 @@
 
 type URLTestOutboundOptions struct {
 	Outbounds                 []string           `json:"outbounds"`
+	Costs                     map[string]uint16  `json:"costs,omitempty"` // OMV
 	URL                       string             `json:"url,omitempty"`
 	Interval                  badoption.Duration `json:"interval,omitempty"`
 	Tolerance                 uint16             `json:"tolerance,omitempty"`