Smithy comes with some core functionality and the accompanying, necessary
app permissions that we request, which we will walk you through now.
First, Smithy is all about keeping your conversations on topic by always
requiring threads in channels that you choose.
Smithy creates new threads on a user's behalf (just like they themselves
created them, not a bot) and cleans up unthreaded messages automatically.
We use two scopes for this: channels:history and chat:write.