diff --git a/hwci/select_tests.py b/hwci/select_tests.py
new file mode 100644
index 0000000..7128d2e
--- /dev/null
+++ b/hwci/select_tests.py
@@ -0,0 +1,57 @@
+# Licensed under the Apache License, Version 2.0 or the MIT License.
+# SPDX-License-Identifier: Apache-2.0 OR MIT
+# Copyright Tock Contributors 2024.
+
+#!/usr/bin/env python3
+
+import os
+import argparse
+import json
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Select all HWCI tests.")
+    parser.add_argument(
+        "--repo-path",
+        type=str,
+        default=".",
+        help="Path to the tock/tock repository to analyze",
+    )
+    parser.add_argument(
+        "--hwci-path",
+        type=str,
+        required=True,
+        help="Path to the tock-hardware-ci repository",
+    )
+    parser.add_argument(
+        "--output",
+        type=str,
+        default="selected_tests.json",
+        help="Output JSON file for selected tests",
+    )
+    args = parser.parse_args()
+
+    # For now, we ignore the repo-path (tock/tock repository) since we are not analyzing changes yet
+    # In the future, we will use repo-path to analyze the changes and select tests accordingly
+
+    # Path to the tests directory within the tock-hardware-ci repository
+    tests_dir = os.path.join(args.hwci_path, "hwci", "tests")
+
+    # Find all .py files in the tests directory
+    test_files = []
+    for root, dirs, files in os.walk(tests_dir):
+        for file in files:
+            if file.endswith(".py"):
+                # Get the relative path to the test file
+                test_path = os.path.relpath(os.path.join(root, file), args.hwci_path)
+                test_files.append(test_path)
+
+    # Output the list of test files as a JSON array
+    with open(args.output, "w") as f:
+        json.dump(test_files, f)
+
+    print(f"Selected HWCI tests: {test_files}")
+
+
+if __name__ == "__main__":
+    main()