diff --git a/pkg/filekit/io.go b/pkg/filekit/io.go
new file mode 100644
index 0000000..cf498d7
--- /dev/null
+++ b/pkg/filekit/io.go
@@ -0,0 +1,41 @@
+package filekit
+
+import (
+	"context"
+
+	"git.solsynth.dev/hypernet/nexus/pkg/nex"
+	"git.solsynth.dev/hypernet/paperclip/pkg/proto"
+)
+
+func UpdateVisibility(c *nex.Conn, request *proto.UpdateVisibilityRequest) error {
+	conn, err := c.GetClientGrpcConn("uc")
+	if err != nil {
+		return nil
+	}
+
+	pc := proto.NewAttachmentServiceClient(conn)
+	_, err = pc.UpdateVisibility(context.Background(), request)
+	return err
+}
+
+func DeleteAttachment(c *nex.Conn, request *proto.DeleteAttachmentRequest) error {
+	conn, err := c.GetClientGrpcConn("uc")
+	if err != nil {
+		return nil
+	}
+
+	pc := proto.NewAttachmentServiceClient(conn)
+	_, err = pc.DeleteAttachment(context.Background(), request)
+	return err
+}
+
+func CountAttachmentUsage(c *nex.Conn, request *proto.UpdateUsageRequest) error {
+	conn, err := c.GetClientGrpcConn("uc")
+	if err != nil {
+		return nil
+	}
+
+	pc := proto.NewAttachmentServiceClient(conn)
+	_, err = pc.UpdateUsage(context.Background(), request)
+	return err
+}
diff --git a/pkg/internal/grpc/attachment.go b/pkg/internal/grpc/attachment.go
index f7be0fc..4b8df28 100644
--- a/pkg/internal/grpc/attachment.go
+++ b/pkg/internal/grpc/attachment.go
@@ -93,10 +93,18 @@ func (v *Server) UpdateVisibility(ctx context.Context, request *proto.UpdateVisi
 }
 
 func (v *Server) UpdateUsage(ctx context.Context, request *proto.UpdateUsageRequest) (*proto.UpdateUsageResponse, error) {
-	id := lo.Map(request.GetId(), func(item uint64, _ int) uint {
-		return uint(item)
-	})
-	if rows, err := services.CountAttachmentUsage(id, int(request.GetDelta())); err != nil {
+	tx := database.C
+	if len(request.Id) == 0 && len(request.Rid) == 0 {
+		return nil, status.Error(codes.InvalidArgument, "you must provide at least one id or random id")
+	}
+	if len(request.Id) > 0 {
+		tx = tx.Where("id IN ?", request.Id)
+	}
+	if len(request.Rid) > 0 {
+		tx = tx.Where("rid IN ?", request.Rid)
+	}
+
+	if rows, err := services.CountAttachmentUsage(tx, int(request.GetDelta())); err != nil {
 		return nil, status.Error(codes.Internal, err.Error())
 	} else {
 		return &proto.UpdateUsageResponse{
diff --git a/pkg/internal/services/attachments.go b/pkg/internal/services/attachments.go
index 79c3d7f..9a65e51 100644
--- a/pkg/internal/services/attachments.go
+++ b/pkg/internal/services/attachments.go
@@ -318,9 +318,8 @@ func DeleteAttachmentInBatch(items []models.Attachment, txs ...*gorm.DB) error {
 	return nil
 }
 
-func CountAttachmentUsage(id []uint, delta int) (int64, error) {
-	if tx := database.C.Model(&models.Attachment{}).
-		Where("id IN ?", id).
+func CountAttachmentUsage(tx *gorm.DB, delta int) (int64, error) {
+	if tx := tx.Model(&models.Attachment{}).
 		Update("used_count", gorm.Expr("used_count + ?", delta)); tx.Error != nil {
 		return tx.RowsAffected, tx.Error
 	} else {
diff --git a/pkg/proto/attachment.pb.go b/pkg/proto/attachment.pb.go
index 2642378..0f56a16 100644
--- a/pkg/proto/attachment.pb.go
+++ b/pkg/proto/attachment.pb.go
@@ -453,7 +453,8 @@ type UpdateUsageRequest struct {
 	unknownFields protoimpl.UnknownFields
 
 	Id    []uint64 `protobuf:"varint,1,rep,packed,name=id,proto3" json:"id,omitempty"`
-	Delta int64    `protobuf:"varint,2,opt,name=delta,proto3" json:"delta,omitempty"`
+	Rid   []string `protobuf:"bytes,2,rep,name=rid,proto3" json:"rid,omitempty"`
+	Delta int64    `protobuf:"varint,3,opt,name=delta,proto3" json:"delta,omitempty"`
 }
 
 func (x *UpdateUsageRequest) Reset() {
@@ -493,6 +494,13 @@ func (x *UpdateUsageRequest) GetId() []uint64 {
 	return nil
 }
 
+func (x *UpdateUsageRequest) GetRid() []string {
+	if x != nil {
+		return x.Rid
+	}
+	return nil
+}
+
 func (x *UpdateUsageRequest) GetDelta() int64 {
 	if x != nil {
 		return x.Delta
@@ -704,51 +712,52 @@ var file_attachment_proto_rawDesc = []byte{
 	0x08, 0x5f, 0x75, 0x73, 0x65, 0x72, 0x5f, 0x69, 0x64, 0x22, 0x30, 0x0a, 0x18, 0x55, 0x70, 0x64,
 	0x61, 0x74, 0x65, 0x56, 0x69, 0x73, 0x69, 0x62, 0x69, 0x6c, 0x69, 0x74, 0x79, 0x52, 0x65, 0x73,
 	0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x01,
-	0x20, 0x01, 0x28, 0x05, 0x52, 0x05, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x22, 0x3a, 0x0a, 0x12, 0x55,
+	0x20, 0x01, 0x28, 0x05, 0x52, 0x05, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x22, 0x4c, 0x0a, 0x12, 0x55,
 	0x70, 0x64, 0x61, 0x74, 0x65, 0x55, 0x73, 0x61, 0x67, 0x65, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73,
 	0x74, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x03, 0x28, 0x04, 0x52, 0x02, 0x69,
-	0x64, 0x12, 0x14, 0x0a, 0x05, 0x64, 0x65, 0x6c, 0x74, 0x61, 0x18, 0x02, 0x20, 0x01, 0x28, 0x03,
-	0x52, 0x05, 0x64, 0x65, 0x6c, 0x74, 0x61, 0x22, 0x2b, 0x0a, 0x13, 0x55, 0x70, 0x64, 0x61, 0x74,
-	0x65, 0x55, 0x73, 0x61, 0x67, 0x65, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x14,
-	0x0a, 0x05, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x05, 0x52, 0x05, 0x63,
-	0x6f, 0x75, 0x6e, 0x74, 0x22, 0x65, 0x0a, 0x17, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x41, 0x74,
-	0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12,
-	0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x03, 0x28, 0x04, 0x52, 0x02, 0x69, 0x64, 0x12,
-	0x10, 0x0a, 0x03, 0x72, 0x69, 0x64, 0x18, 0x02, 0x20, 0x03, 0x28, 0x09, 0x52, 0x03, 0x72, 0x69,
-	0x64, 0x12, 0x1c, 0x0a, 0x07, 0x75, 0x73, 0x65, 0x72, 0x5f, 0x69, 0x64, 0x18, 0x03, 0x20, 0x01,
-	0x28, 0x04, 0x48, 0x00, 0x52, 0x06, 0x75, 0x73, 0x65, 0x72, 0x49, 0x64, 0x88, 0x01, 0x01, 0x42,
-	0x0a, 0x0a, 0x08, 0x5f, 0x75, 0x73, 0x65, 0x72, 0x5f, 0x69, 0x64, 0x22, 0x30, 0x0a, 0x18, 0x44,
-	0x65, 0x6c, 0x65, 0x74, 0x65, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52,
-	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x63, 0x6f, 0x75, 0x6e, 0x74,
-	0x18, 0x01, 0x20, 0x01, 0x28, 0x05, 0x52, 0x05, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x32, 0xa8, 0x03,
-	0x0a, 0x11, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x53, 0x65, 0x72, 0x76,
-	0x69, 0x63, 0x65, 0x12, 0x4c, 0x0a, 0x0d, 0x47, 0x65, 0x74, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68,
-	0x6d, 0x65, 0x6e, 0x74, 0x12, 0x1b, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x47, 0x65, 0x74,
+	0x64, 0x12, 0x10, 0x0a, 0x03, 0x72, 0x69, 0x64, 0x18, 0x02, 0x20, 0x03, 0x28, 0x09, 0x52, 0x03,
+	0x72, 0x69, 0x64, 0x12, 0x14, 0x0a, 0x05, 0x64, 0x65, 0x6c, 0x74, 0x61, 0x18, 0x03, 0x20, 0x01,
+	0x28, 0x03, 0x52, 0x05, 0x64, 0x65, 0x6c, 0x74, 0x61, 0x22, 0x2b, 0x0a, 0x13, 0x55, 0x70, 0x64,
+	0x61, 0x74, 0x65, 0x55, 0x73, 0x61, 0x67, 0x65, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65,
+	0x12, 0x14, 0x0a, 0x05, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x05, 0x52,
+	0x05, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x22, 0x65, 0x0a, 0x17, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65,
 	0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73,
-	0x74, 0x1a, 0x1c, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x47, 0x65, 0x74, 0x41, 0x74, 0x74,
-	0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22,
-	0x00, 0x12, 0x4f, 0x0a, 0x0e, 0x4c, 0x69, 0x73, 0x74, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d,
-	0x65, 0x6e, 0x74, 0x12, 0x1c, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x4c, 0x69, 0x73, 0x74,
-	0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73,
-	0x74, 0x1a, 0x1d, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x4c, 0x69, 0x73, 0x74, 0x41, 0x74,
-	0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65,
-	0x22, 0x00, 0x12, 0x55, 0x0a, 0x10, 0x55, 0x70, 0x64, 0x61, 0x74, 0x65, 0x56, 0x69, 0x73, 0x69,
-	0x62, 0x69, 0x6c, 0x69, 0x74, 0x79, 0x12, 0x1e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x55,
-	0x70, 0x64, 0x61, 0x74, 0x65, 0x56, 0x69, 0x73, 0x69, 0x62, 0x69, 0x6c, 0x69, 0x74, 0x79, 0x52,
-	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1f, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x55,
-	0x70, 0x64, 0x61, 0x74, 0x65, 0x56, 0x69, 0x73, 0x69, 0x62, 0x69, 0x6c, 0x69, 0x74, 0x79, 0x52,
-	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x46, 0x0a, 0x0b, 0x55, 0x70, 0x64,
-	0x61, 0x74, 0x65, 0x55, 0x73, 0x61, 0x67, 0x65, 0x12, 0x19, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
-	0x2e, 0x55, 0x70, 0x64, 0x61, 0x74, 0x65, 0x55, 0x73, 0x61, 0x67, 0x65, 0x52, 0x65, 0x71, 0x75,
-	0x65, 0x73, 0x74, 0x1a, 0x1a, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x55, 0x70, 0x64, 0x61,
-	0x74, 0x65, 0x55, 0x73, 0x61, 0x67, 0x65, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22,
-	0x00, 0x12, 0x55, 0x0a, 0x10, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x41, 0x74, 0x74, 0x61, 0x63,
-	0x68, 0x6d, 0x65, 0x6e, 0x74, 0x12, 0x1e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x44, 0x65,
-	0x6c, 0x65, 0x74, 0x65, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52, 0x65,
-	0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1f, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x44, 0x65,
-	0x6c, 0x65, 0x74, 0x65, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52, 0x65,
-	0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x09, 0x5a, 0x07, 0x2e, 0x3b, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x74, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x03, 0x28, 0x04, 0x52, 0x02, 0x69,
+	0x64, 0x12, 0x10, 0x0a, 0x03, 0x72, 0x69, 0x64, 0x18, 0x02, 0x20, 0x03, 0x28, 0x09, 0x52, 0x03,
+	0x72, 0x69, 0x64, 0x12, 0x1c, 0x0a, 0x07, 0x75, 0x73, 0x65, 0x72, 0x5f, 0x69, 0x64, 0x18, 0x03,
+	0x20, 0x01, 0x28, 0x04, 0x48, 0x00, 0x52, 0x06, 0x75, 0x73, 0x65, 0x72, 0x49, 0x64, 0x88, 0x01,
+	0x01, 0x42, 0x0a, 0x0a, 0x08, 0x5f, 0x75, 0x73, 0x65, 0x72, 0x5f, 0x69, 0x64, 0x22, 0x30, 0x0a,
+	0x18, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e,
+	0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x63, 0x6f, 0x75,
+	0x6e, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x05, 0x52, 0x05, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x32,
+	0xa8, 0x03, 0x0a, 0x11, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x53, 0x65,
+	0x72, 0x76, 0x69, 0x63, 0x65, 0x12, 0x4c, 0x0a, 0x0d, 0x47, 0x65, 0x74, 0x41, 0x74, 0x74, 0x61,
+	0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x12, 0x1b, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x47,
+	0x65, 0x74, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52, 0x65, 0x71, 0x75,
+	0x65, 0x73, 0x74, 0x1a, 0x1c, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x47, 0x65, 0x74, 0x41,
+	0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
+	0x65, 0x22, 0x00, 0x12, 0x4f, 0x0a, 0x0e, 0x4c, 0x69, 0x73, 0x74, 0x41, 0x74, 0x74, 0x61, 0x63,
+	0x68, 0x6d, 0x65, 0x6e, 0x74, 0x12, 0x1c, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x4c, 0x69,
+	0x73, 0x74, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52, 0x65, 0x71, 0x75,
+	0x65, 0x73, 0x74, 0x1a, 0x1d, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x4c, 0x69, 0x73, 0x74,
+	0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e,
+	0x73, 0x65, 0x22, 0x00, 0x12, 0x55, 0x0a, 0x10, 0x55, 0x70, 0x64, 0x61, 0x74, 0x65, 0x56, 0x69,
+	0x73, 0x69, 0x62, 0x69, 0x6c, 0x69, 0x74, 0x79, 0x12, 0x1e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x2e, 0x55, 0x70, 0x64, 0x61, 0x74, 0x65, 0x56, 0x69, 0x73, 0x69, 0x62, 0x69, 0x6c, 0x69, 0x74,
+	0x79, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1f, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x2e, 0x55, 0x70, 0x64, 0x61, 0x74, 0x65, 0x56, 0x69, 0x73, 0x69, 0x62, 0x69, 0x6c, 0x69, 0x74,
+	0x79, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x46, 0x0a, 0x0b, 0x55,
+	0x70, 0x64, 0x61, 0x74, 0x65, 0x55, 0x73, 0x61, 0x67, 0x65, 0x12, 0x19, 0x2e, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x2e, 0x55, 0x70, 0x64, 0x61, 0x74, 0x65, 0x55, 0x73, 0x61, 0x67, 0x65, 0x52, 0x65,
+	0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1a, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e, 0x55, 0x70,
+	0x64, 0x61, 0x74, 0x65, 0x55, 0x73, 0x61, 0x67, 0x65, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
+	0x65, 0x22, 0x00, 0x12, 0x55, 0x0a, 0x10, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x41, 0x74, 0x74,
+	0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74, 0x12, 0x1e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e,
+	0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74,
+	0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1f, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2e,
+	0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x41, 0x74, 0x74, 0x61, 0x63, 0x68, 0x6d, 0x65, 0x6e, 0x74,
+	0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x09, 0x5a, 0x07, 0x2e, 0x3b,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/pkg/proto/attachment.proto b/pkg/proto/attachment.proto
index 0ab8c6a..1e15fea 100644
--- a/pkg/proto/attachment.proto
+++ b/pkg/proto/attachment.proto
@@ -56,7 +56,8 @@ message UpdateVisibilityResponse {
 
 message UpdateUsageRequest {
   repeated uint64 id = 1;
-  int64 delta = 2;
+  repeated string rid = 2;
+  int64 delta = 3;
 }
 
 message UpdateUsageResponse {