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diff --git a/scripts/assert_empty_deps.py b/scripts/assert_empty_deps.py
new file mode 100644
index 0000000..6051f8f
--- /dev/null
+++ b/scripts/assert_empty_deps.py
@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+#
+# Copyright 2019 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import os
+import sys
+import json
+import devtools_paths
+
+
+def run_assert():
+    assert_errors_found = False
+    try:
+        with open(devtools_paths.package_json_path(), 'r') as pkg_file:
+            pkg = json.load(pkg_file)
+            if 'dependencies' in pkg:
+                print('dependencies property found in package.json')
+                assert_errors_found = True
+            if 'devDependencies' in pkg:
+                print('devDependencies property found in package.json')
+                assert_errors_found = True
+    except ValueError:
+        print('Unable to parse package.json')
+        assert_errors_found = True
+    except FileNotFoundError:
+        print('Unable to find package.json')
+        assert_errors_found = True
+
+    return assert_errors_found
+
+
+errors_found = run_assert()
+
+if errors_found:
+    print("ERRORS DETECTED")
+    sys.exit(1)