diff --git a/lib/engines/hckinstall/hckinstall.jtd.json b/lib/engines/hckinstall/hckinstall.jtd.json
new file mode 100644
index 00000000..69da7327
--- /dev/null
+++ b/lib/engines/hckinstall/hckinstall.jtd.json
@@ -0,0 +1,7 @@
+{
+  "properties": {
+    "hck_setup_scripts_path": { "type": "string" },
+    "answer_files": { "elements": { "type": "string" } },
+    "install_timeout": { "type": "uint16" }
+  }
+}
diff --git a/lib/engines/hcktest/hcktest.jtd.json b/lib/engines/hcktest/hcktest.jtd.json
new file mode 100644
index 00000000..44001a03
--- /dev/null
+++ b/lib/engines/hcktest/hcktest.jtd.json
@@ -0,0 +1,6 @@
+{
+  "properties": {
+    "playlists_path": { "type": "string" },
+    "filters_path": { "type": "string" }
+  }
+}