As per The personal-files interface enable-kubeconfig-access should be named dot-kube-config, similarly enable-scala-history should be named dot-scala-history.
+1 for use-of and auto-connect dot-kube-config for read access to ~/.kube/config since this is required for a snap which is a K*s client such as Spark.
However I don’t think it is really appropriate to auto-connect write access to a file which is not clearly owned by this snap (ie ~/.scala_history). As such, +1 for use of but not auto-connect of dot-scala-history for write access to ~/.scala_history.