diff --git a/artifact.logging_module/src/artifact_logging_module/cli.py b/artifact.logging_module/src/artifact_logging_module/cli.py
new file mode 100644
index 0000000..0c03ccc
--- /dev/null
+++ b/artifact.logging_module/src/artifact_logging_module/cli.py
@@ -0,0 +1,72 @@
+import argparse
+import json
+from pathlib import Path
+from datetime import datetime
+from typing import Any, Dict, List
+
+
+def load_json_file(path: Path) -> List[Dict[str, Any]]:
+    if not path.exists() or not path.is_file():
+        raise FileNotFoundError(f"Eingabedatei nicht gefunden: {path}")
+    with open(path, 'r', encoding='utf-8') as f:
+        data = json.load(f)
+    if not isinstance(data, list):
+        raise ValueError("JSON-Daten müssen eine Liste von Log-Einträgen enthalten.")
+    return data
+
+
+def validate_log_entry(entry: Dict[str, Any]) -> bool:
+    required_fields = {"timestamp", "decision_type", "reason_code", "additional_info"}
+    if not required_fields.issubset(entry.keys()):
+        return False
+    try:
+        datetime.fromisoformat(entry["timestamp"])
+    except Exception:
+        return False
+    if entry["decision_type"] not in {"PASS", "WARN", "UNKNOWN"}:
+        return False
+    return True
+
+
+def generate_summary(entries: List[Dict[str, Any]]) -> str:
+    total = len(entries)
+    if total == 0:
+        return "Keine Logeinträge vorhanden."
+    counts = {"PASS": 0, "WARN": 0, "UNKNOWN": 0}
+    for e in entries:
+        dtype = e.get("decision_type")
+        if dtype in counts:
+            counts[dtype] += 1
+    warn_rate = (counts["WARN"] / total) * 100 if total else 0
+    summary = (
+        f"Gesamt: {total}\n"
+        f"PASS: {counts['PASS']}\n"
+        f"WARN: {counts['WARN']} ({warn_rate:.2f}% Warnrate)\n"
+        f"UNKNOWN: {counts['UNKNOWN']}\n"
+    )
+    return summary
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description="Generiert einen CI-Zusammenfassungsbericht aus JSON-Logs.")
+    parser.add_argument("--input", required=True, help="Pfad zu einer JSON-Datei mit Entscheidungs-Logs.")
+    parser.add_argument("--output", required=False, help="Zielpfad für den generierten Bericht.")
+    args = parser.parse_args()
+
+    input_path = Path(args.input)
+    output_path = Path(args.output) if args.output else Path("output/report.txt")
+
+    entries = load_json_file(input_path)
+    valid_entries = [e for e in entries if validate_log_entry(e)]
+
+    report = generate_summary(valid_entries)
+
+    output_path.parent.mkdir(parents=True, exist_ok=True)
+    with open(output_path, 'w', encoding='utf-8') as f:
+        f.write(report)
+
+    print(f"Bericht gespeichert unter: {output_path}")
+
+
+if __name__ == "__main__":
+    main()
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