diff --git a/instance.go b/instance.go
index e5cf113..545cc99 100644
--- a/instance.go
+++ b/instance.go
@@ -20,30 +20,27 @@ type instanceData struct {
 }
 
 type (
-	certificater interface{ Certificate(*pdk.PDK) }
-	rewriter     interface{ Rewrite(*pdk.PDK) }
-	accesser     interface{ Access(*pdk.PDK) }
-	headerFilter interface{ HeaderFilter(*pdk.PDK) }
-	bodyFilter   interface{ BodyFilter(*pdk.PDK) }
-	prereader    interface{ Preread(*pdk.PDK) }
-	logger       interface{ Log(*pdk.PDK) }
+	certificater   interface{ Certificate(*pdk.PDK) }
+	rewriter       interface{ Rewrite(*pdk.PDK) }
+	accesser       interface{ Access(*pdk.PDK) }
+	responser      interface{ Response(*pdk.PDK) }
+	prereader      interface{ Preread(*pdk.PDK) }
+	logger         interface{ Log(*pdk.PDK) }
 )
 
 func getHandlers(config interface{}) map[string]func(kong *pdk.PDK) {
 	handlers := map[string]func(kong *pdk.PDK){}
 
-	if h, ok := config.(certificater); ok { handlers["certificate"]   = h.Certificate  }
-	if h, ok := config.(rewriter)    ; ok { handlers["rewrite"]       = h.Rewrite      }
-	if h, ok := config.(accesser)    ; ok { handlers["access"]        = h.Access       }
-	if h, ok := config.(headerFilter); ok { handlers["header_filter"] = h.HeaderFilter }
-	if h, ok := config.(bodyFilter)  ; ok { handlers["body_filter"]   = h.BodyFilter   }
-	if h, ok := config.(prereader)   ; ok { handlers["preread"]       = h.Preread      }
-	if h, ok := config.(logger)      ; ok { handlers["log"]           = h.Log          }
+	if h, ok := config.(certificater); ok { handlers["certificate"] = h.Certificate }
+	if h, ok := config.(rewriter)    ; ok { handlers["rewrite"]     = h.Rewrite     }
+	if h, ok := config.(accesser)    ; ok { handlers["access"]      = h.Access      }
+	if h, ok := config.(responser)   ; ok { handlers["response"]    = h.Response    }
+	if h, ok := config.(prereader)   ; ok { handlers["preread"]     = h.Preread     }
+	if h, ok := config.(logger)      ; ok { handlers["log"]         = h.Log         }
 
 	return handlers
 }
 
-
 func (s *PluginServer) expireInstances() error {
 	const instanceTimeout = 60
 	expirationCutoff := time.Now().Add(time.Second * -instanceTimeout)
@@ -131,7 +128,6 @@ func (s *PluginServer) StartInstance(config PluginConfig, status *InstanceStatus
 
 	log.Printf("Started instance %#v:%v", config.Name, instance.id)
 
-
 	return nil
 }
 
diff --git a/main.go b/main.go
index 583b7a0..442108e 100644
--- a/main.go
+++ b/main.go
@@ -4,14 +4,14 @@ package main
 
 import (
 	"flag"
-	"runtime"
+	"fmt"
 	"github.com/ugorji/go/codec"
 	"log"
 	"net"
 	"net/rpc"
 	"os"
 	"reflect"
-	"fmt"
+	"runtime"
 	"time"
 )
 
@@ -19,9 +19,9 @@ var version = "development"
 
 /* flags */
 var (
-	kongPrefix = flag.String("kong-prefix", "/usr/local/kong", "Kong prefix path (specified by the -p argument commonly used in the kong cli)")
-	dump = flag.String("dump-plugin-info", "", "Dump info about `plugin` as a MessagePack object")
-	pluginsDir = flag.String("plugins-directory", "", "Set directory `path` where to search plugins")
+	kongPrefix  = flag.String("kong-prefix", "/usr/local/kong", "Kong prefix path (specified by the -p argument commonly used in the kong cli)")
+	dump        = flag.String("dump-plugin-info", "", "Dump info about `plugin` as a MessagePack object")
+	pluginsDir  = flag.String("plugins-directory", "", "Set directory `path` where to search plugins")
 	showVersion = flag.Bool("version", false, "Print binary and runtime version")
 )
 
@@ -118,7 +118,7 @@ func main() {
 	if socket != "" {
 		go func() {
 			for {
-				if ! isParentAlive() {
+				if !isParentAlive() {
 					log.Printf("Kong exited; shutting down...")
 					os.Exit(0)
 				}