diff --git a/data_analysis_script/src/data_analysis_script/cli.py b/data_analysis_script/src/data_analysis_script/cli.py
new file mode 100644
index 0000000..020bf91
--- /dev/null
+++ b/data_analysis_script/src/data_analysis_script/cli.py
@@ -0,0 +1,50 @@
+import argparse
+import csv
+import json
+from pathlib import Path
+from typing import List, Dict
+
+from data_analysis_script import core
+
+def _read_csv_data(file_path: Path) -> List[Dict[str, float]]:
+    data = []
+    with file_path.open(newline='', encoding='utf-8') as f:
+        reader = csv.DictReader(f)
+        for row in reader:
+            try:
+                data.append({
+                    'condition_name': row['condition_name'],
+                    'amplitude': float(row['amplitude']),
+                    'timestamp': float(row['timestamp'])
+                })
+            except (KeyError, ValueError):
+                continue
+    return data
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description='Analyze measurement data for electric coupling.')
+    parser.add_argument('--input', required=True, help='Pfad zur CSV-Datei mit Messdaten.')
+    parser.add_argument('--output', required=True, help='Pfad zur JSON-Ausgabedatei für Analyseergebnisse.')
+
+    args = parser.parse_args()
+
+    input_path = Path(args.input)
+    output_path = Path(args.output)
+
+    if not input_path.exists():
+        raise FileNotFoundError(f'Eingabedatei nicht gefunden: {input_path}')
+
+    data = _read_csv_data(input_path)
+    if not data:
+        raise ValueError('Keine gültigen Messdaten gefunden.')
+
+    result = core.analyze_data(data)
+
+    output_path.parent.mkdir(parents=True, exist_ok=True)
+    with output_path.open('w', encoding='utf-8') as f:
+        json.dump(result, f, indent=2)
+
+
+if __name__ == '__main__':
+    main()
\ No newline at end of file