diff --git a/hack/whatApi.sh b/hack/whatApi.sh
index 471fae4ab..50336b6d7 100755
--- a/hack/whatApi.sh
+++ b/hack/whatApi.sh
@@ -1,9 +1,15 @@
-# Report on use of API module.
+# Report how kustomize and the plugins use the API module.
 #
 # Usage:
 #   ./hack/whatApi.sh plugin
 #   ./hack/whatApi.sh kustomize
 
+# The packages listed below in 'grep -v' lines will
+# likely appear in API v1.
+#
+# Packages not listed (i.e. emitted to stdout) will
+# likely move to internal.
+#
 function whatApi {
   echo "==== begin $1 =================================="
     find $1 -name "*.go" |\
@@ -15,13 +21,21 @@ function whatApi {
     sed 's|sigs.k8s.io/kustomize/api/||' |\
     sort |\
     uniq |\
-    grep -v " filesys " |\
-    grep -v " resource " |\
-    grep -v " resid " |\
-    grep -v " resmap " |\
-    grep -v " testutils/" |\
+    grep -v " filesys "    |\
+    grep -v " hasher "     |\
+    grep -v " ifc "        |\
+    grep -v " inventory "  |\
+    grep -v " konfig"      |\
+    grep -v " krusty "     |\
+    grep -v " kv "         |\
+    grep -v " provenance " |\
+    grep -v " resid "      |\
+    grep -v " resmap "     |\
+    grep -v " resource "   |\
+    grep -v " testutils"   |\
     grep -v " types "
   echo "==== end $1 =================================="
 }
 
+
 whatApi $1