diff --git a/corrlib/cli.py b/corrlib/cli.py
index 6c1c3c5..2d1a9ee 100644
--- a/corrlib/cli.py
+++ b/corrlib/cli.py
@@ -1,6 +1,7 @@
 from typing import Optional
 import typer
 from corrlib import __app_name__
+
 from .initialization import create
 from .toml import import_tomls, update_project, reimport_project
 from .find import find_record, list_projects
@@ -8,6 +9,8 @@ from .tools import str2list
 from .main import update_aliases
 from .meas_io import drop_cache as mio_drop_cache
 from .meas_io import load_record as mio_load_record
+# from .integrity import 
+
 import os
 from pyerrors import Corr
 from importlib.metadata import version
@@ -137,6 +140,23 @@ def stat(
     return
 
 
+@app.command()
+def check(path: Path = typer.Option(
+        Path('./corrlib'),
+        "--dataset",
+        "-d",
+        ),
+    files: str = typer.Argument(
+        ),
+    copy_file: bool = typer.Option(
+        bool(True),
+        "--save",
+        "-s",
+        ),) -> None:
+
+    "✅" : "❌"
+
+
 @app.command()
 def importer(
     path: Path = typer.Option(