diff --git a/scripts/cli/cli_helper.py b/scripts/cli/cli_helper.py
index 426d3242..22d23a22 100644
--- a/scripts/cli/cli_helper.py
+++ b/scripts/cli/cli_helper.py
@@ -136,3 +136,20 @@ def str_to_gsd(value: str) -> Decimal:
         )
 
     return Decimal(number_value)
+
+
+def str_to_bool(value: str) -> bool:
+    if value == "true":
+        return True
+    if value == "false":
+        return False
+    raise argparse.ArgumentTypeError(f"Invalid boolean (must be exactly 'true' or 'false'): {value}")
+
+
+def str_to_list_or_none(values: str) -> list[Decimal] | None:
+    if not values:
+        return None
+    result = [Decimal(value) for value in values.split(",")]
+    if len(result) != 2:
+        raise argparse.ArgumentTypeError(f"Invalid list - must be blank or exactly 2 values x,y. Received: {values}")
+    return result
diff --git a/scripts/collection_from_items.py b/scripts/collection_from_items.py
index 6b092e1e..090a4079 100644
--- a/scripts/collection_from_items.py
+++ b/scripts/collection_from_items.py
@@ -10,7 +10,7 @@
 from boto3 import client
 from linz_logger import get_log
 
-from scripts.cli.cli_helper import coalesce_multi_single, str_to_gsd
+from scripts.cli.cli_helper import coalesce_multi_single, str_to_bool, str_to_gsd
 from scripts.datetimes import RFC_3339_DATETIME_FORMAT, parse_rfc_3339_datetime
 from scripts.files.files_helper import SUFFIX_FOOTPRINT, SUFFIX_JSON
 from scripts.files.fs_s3 import bucket_name_from_path, get_object_parallel_multithreading, list_files_in_uri
@@ -100,16 +100,18 @@ def parse_args(args: List[str] | None) -> Namespace:
     parser.add_argument(
         "--capture-dates",
         dest="capture_dates",
-        action="store_true",
         help="Add a capture-dates.geojson.gz file to the collection assets",
+        type=str_to_bool,
         required=False,
+        default=False,
     )
     parser.add_argument(
         "--add-title-suffix",
         dest="add_title_suffix",
-        action="store_true",
         help="Add a title suffix to the collection title based on the lifecycle. For example, '[TITLE] - Preview'",
+        type=str_to_bool,
         required=False,
+        default=False,
     )
     parser.add_argument(
         "--current-datetime",
@@ -129,6 +131,7 @@ def parse_args(args: List[str] | None) -> Namespace:
 def main(args: List[str] | None = None) -> None:
     start_time = time_in_ms()
     arguments = parse_args(args)
+    print("capture dates:", arguments.capture_dates)
     uri = arguments.uri
     collection_id = arguments.collection_id
 
diff --git a/scripts/standardise_validate.py b/scripts/standardise_validate.py
index 7851ac8c..2256ecce 100644
--- a/scripts/standardise_validate.py
+++ b/scripts/standardise_validate.py
@@ -2,11 +2,18 @@
 import os
 import sys
 from datetime import datetime, timezone
-from decimal import Decimal
 
 from linz_logger import get_log
 
-from scripts.cli.cli_helper import InputParameterError, is_argo, load_input_files, str_to_gsd, valid_date
+from scripts.cli.cli_helper import (
+    InputParameterError,
+    is_argo,
+    load_input_files,
+    str_to_bool,
+    str_to_gsd,
+    str_to_list_or_none,
+    valid_date,
+)
 from scripts.datetimes import RFC_3339_DATETIME_FORMAT, format_rfc_3339_nz_midnight_datetime_string
 from scripts.files.file_tiff import FileTiff
 from scripts.files.files_helper import SUFFIX_JSON, ContentType
@@ -17,23 +24,6 @@
 from scripts.standardising import StandardisingConfig, run_standardising
 
 
-def str_to_bool(value: str) -> bool:
-    if value == "true":
-        return True
-    if value == "false":
-        return False
-    raise argparse.ArgumentTypeError(f"Invalid boolean (must be exactly 'true' or 'false'): {value}")
-
-
-def str_to_list_or_none(values: str) -> list[Decimal] | None:
-    if not values:
-        return None
-    result = [Decimal(value) for value in values.split(",")]
-    if len(result) != 2:
-        raise argparse.ArgumentTypeError(f"Invalid list - must be blank or exactly 2 values x,y. Received: {values}")
-    return result
-
-
 def parse_args() -> argparse.Namespace:
     parser = argparse.ArgumentParser()
     parser.add_argument("--preset", dest="preset", required=True, help="Standardised file format. Example: webp")