My game description currently contains a description of my game as well as attributions for the assets that I use. Instead of having to manually update the description every time something changes, I'd love to be able to programmatically generate and upload the description. This way I could manage all the parts like attribution and description in my code repo and have the rest be automated, so I wont forget to add attributions in the repo and/or in the description. Is there a way to achieve this?

Butler can only be used to send files at this time. There is no API to edit game page or upload metadata at this time. (Mostly to prevent automated abuse, but we may introduce something like this in the future)