diff --git a/javascript/ql/lib/ext/test.model.yml b/javascript/ql/lib/ext/test.model.yml
new file mode 100644
index 000000000000..e364808a3497
--- /dev/null
+++ b/javascript/ql/lib/ext/test.model.yml
@@ -0,0 +1,6 @@
+extensions:
+  - addsTo:
+      pack: codeql/threat-models
+      extensible: threatModelConfiguration
+    data:
+      - ["response", true, 0]