diff --git a/augment/augment.py b/augment/augment.py
index 1c5d36c5..d0edb679 100755
--- a/augment/augment.py
+++ b/augment/augment.py
@@ -95,11 +95,11 @@ def write_signal(filename, signal, transforms_text):
 
 def augment(signal, filename, output_dir, n, transforms_text):
     # TODO: sadly, due to Torchsig complexity, literal_eval can't be used.
-    transforms = eval(transforms_text) # nosec
+    transforms = eval(transforms_text)  # nosec
     i = 0
     base_augment_name = os.path.basename(filename)
     dot = base_augment_name.find(".")
-    if dot != "-1":
+    if dot != -1:
         base_augment_name = base_augment_name[:dot]
     for _ in range(n):
         while True:
@@ -114,7 +114,9 @@ def augment(signal, filename, output_dir, n, transforms_text):
 
 
 def argument_parser():
-    parser = ArgumentParser()
+    parser = ArgumentParser(
+        description="Run transforms on a recording from https://github.com/TorchDSP/torchsig/blob/main/torchsig/transforms/transforms.py"
+    )
     parser.add_argument(
         "filename",
         type=str,
diff --git a/docker/Dockerfile.torchsig b/docker/Dockerfile.torchsig
index aac65d94..4a027092 100644
--- a/docker/Dockerfile.torchsig
+++ b/docker/Dockerfile.torchsig
@@ -18,4 +18,6 @@ COPY --from=torchsig-builder /usr/local/lib/python3.10/dist-packages /usr/local/
 RUN python3 -c "from torchsig.transforms import transforms"
 RUN python3 -c "from gamutrf import grscan"
 COPY augment/augment.py /root/augment.py
+RUN dd if=/dev/zero of=/tmp/gamutrf_recording_ettus__gain40_1_1Hz_1000sps.raw bs=8 count=1000 && /root/augment.py /tmp/gamutrf_recording_ettus__gain40_1_1Hz_1000sps.raw /tmp 1 "ST.Compose([ST.Identity()])" && diff -b /tmp/gamutrf_recording_ettus__gain40_1_1Hz_1000sps.raw /tmp/augmented-0-gamutrf_recording_ettus__gain40_1_1Hz_1000sps && rm -f /tmp/gamutrf*
+
 ENTRYPOINT ["/root/augment.py"]