Add example utilities

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: matej

claudecode/example_utils.py

@@ -0,0 +1,50 @@
+"""Example utilities with intentional issues for testing code review."""
+
+import pickle
+import subprocess
+import os
+
+
+def load_user_data(serialized_data):
+    """Load user data from serialized format."""
+    # Security issue: unsafe pickle deserialization
+    return pickle.loads(serialized_data)
+
+
+def run_command(user_input):
+    """Run a shell command based on user input."""
+    # Security issue: command injection
+    result = subprocess.run(f"echo {user_input}", shell=True, capture_output=True)
+    return result.stdout.decode()
+
+
+def read_file(filename):
+    """Read a file from disk."""
+    # Security issue: path traversal
+    path = f"/data/{filename}"
+    with open(path, "r") as f:
+        return f.read()
+
+
+def divide_numbers(a, b):
+    """Divide two numbers."""
+    # Code quality issue: no zero division check
+    return a / b
+
+
+def process_items(items):
+    """Process a list of items."""
+    results = []
+    for i in range(len(items)):
+        # Code quality issue: inefficient iteration
+        for j in range(len(items)):
+            if items[i] == items[j]:
+                results.append(items[i])
+    return results
+
+
+def get_user_by_id(user_id, connection):
+    """Get user from database."""
+    # Security issue: SQL injection
+    query = f"SELECT * FROM users WHERE id = {user_id}"
+    return connection.execute(query)