refactor(scripts): organize script entry points

scripts/tests/test-prompt-inventory.py

@@ -0,0 +1,29 @@
+import importlib.util
+from pathlib import Path
+from tempfile import TemporaryDirectory
+import unittest
+
+
+SPEC = importlib.util.spec_from_file_location('prompt_inventory', Path(__file__).parent / 'lib/prompt-inventory.py')
+MODULE = importlib.util.module_from_spec(SPEC)
+SPEC.loader.exec_module(MODULE)
+
+
+class PromptInventoryTests(unittest.TestCase):
+    def test_counts_metadata_separately_and_reports_duplicate_names(self):
+        with TemporaryDirectory() as temporary:
+            root = Path(temporary)
+            metadata = 'name: "example"\ndescription: Example skill.\n'
+            for name in ('first', 'second'):
+                directory = root / name
+                directory.mkdir()
+                (directory / 'SKILL.md').write_text(f'---\n{metadata}---\n\nBody\n---\nMore body', encoding='utf-8-sig')
+            count, header_bytes, body_bytes, duplicates = MODULE.inventory([root, root / 'missing'])
+            self.assertEqual(count, 2)
+            self.assertEqual(header_bytes, 2 * len(metadata.encode()))
+            self.assertGreater(body_bytes, header_bytes)
+            self.assertEqual(duplicates, ['example'])
+
+
+if __name__ == '__main__':
+    unittest.main()