diff --git a/src/cmd/jsondebug/common/helpers.go b/src/cmd/jsondebug/common/helpers.go
index 937010d7d..f780540e0 100644
--- a/src/cmd/jsondebug/common/helpers.go
+++ b/src/cmd/jsondebug/common/helpers.go
@@ -3,6 +3,7 @@ package common
 import (
 	"encoding/json"
 	"fmt"
+	"io"
 	"runtime"
 	"time"
 )
@@ -99,6 +100,10 @@ type DirectorySummary struct {
 	IgnoredErrorCount int    `json:"numIgnoredErrors,omitempty"`
 }
 
+type ManifestDecoder interface {
+	Decode(r io.Reader, gcStats bool) error
+}
+
 func PrintMemUsage() {
 	var m runtime.MemStats
 
diff --git a/src/cmd/jsondebug/decoder/manifst_decoder.go b/src/cmd/jsondebug/decoder/manifst_decoder.go
index 5dc7232da..5c2c5c832 100644
--- a/src/cmd/jsondebug/decoder/manifst_decoder.go
+++ b/src/cmd/jsondebug/decoder/manifst_decoder.go
@@ -9,6 +9,17 @@ import (
 	"github.com/alcionai/corso/src/cmd/jsondebug/common"
 )
 
+var (
+	_ common.ManifestDecoder = Array{}
+)
+
+type Array struct{}
+
+func (d Array) Decode(r io.Reader, gcStats bool) error {
+	_, err := DecodeManifestArray(r)
+	return err
+}
+
 func DecodeManifestArray(r io.Reader) (common.Manifest, error) {
 	var (
 		dec = json.NewDecoder(r)