diff --git a/TODO b/TODO
index 48714fb..1d3d7b4 100644
--- a/TODO
+++ b/TODO
@@ -9,6 +9,7 @@ High Priority
     * This means a cert and key option using plain HTTP package, while
       it means using Transport when we switched to OpenStackSDK
   - Add checking for token based authentication
+  - Add CLI argument checking, required vs optional
 
 Middle Priority
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