diff --git a/scripts/svc.sh b/scripts/svc.sh
index d3b3f6a8..e1d577b5 100755
--- a/scripts/svc.sh
+++ b/scripts/svc.sh
@@ -1394,6 +1394,13 @@ svc_launch_serve() {
   if [ "${#guard_env[@]}" -gt 0 ]; then
     args+=("${guard_env[@]}")
   fi
+  # 桩只靠 SVC_STUB_* 找到记录目录。这些变量不写入 serve.env，避免 recover
+  # 把某次测试路径固化进实例；生产调用方没有它们。
+  local k
+  while IFS= read -r k; do
+    [ -n "$k" ] || continue
+    args+=("$k=${!k}")
+  done < <(compgen -e | grep -E '^SVC_STUB_' || true)
   # shellcheck disable=SC2086
   nohup "${args[@]}" "$ENV_BIN" serve $exec_args >> "$ENV_DIR/svc.log" 2>&1 9>&- &
 }