diff --git a/python/microns-materialization-api/microns_materialization_api/config/adapters.py b/python/microns-materialization-api/microns_materialization_api/config/adapters.py
index cea1478..c0c87e4 100644
--- a/python/microns-materialization-api/microns_materialization_api/config/adapters.py
+++ b/python/microns-materialization-api/microns_materialization_api/config/adapters.py
@@ -1,3 +1,7 @@
+"""
+Adapters for DataJoint tables.
+"""
+
 import datajoint as dj
 import numpy as np
 import h5py
diff --git a/python/microns-materialization-api/microns_materialization_api/config/externals.py b/python/microns-materialization-api/microns_materialization_api/config/externals.py
index 5831245..b89929c 100644
--- a/python/microns-materialization-api/microns_materialization_api/config/externals.py
+++ b/python/microns-materialization-api/microns_materialization_api/config/externals.py
@@ -1,3 +1,7 @@
+"""
+Externals for DataJoint tables.
+"""
+
 from pathlib import Path
 from microns_utils import config_utils