diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index f5621b5..0000000
Binary files a/.DS_Store and /dev/null differ
diff --git a/test_sample.py b/test_sample.py
new file mode 100644
index 0000000..605e084
--- /dev/null
+++ b/test_sample.py
@@ -0,0 +1,5 @@
+def add(a, b):
+    return a + b  # no docstring, no type hints — arch violations on purpose
+
+result = add(1, 2)
+print(result)