[octaveguin]

I could have been clearer because you're right that it's ambiguous.

My sense of discovery was meant in the UI sort of respect. When a feature is hidden from the user, that feature might as well not exist.

Bots (and command lines, for that matter) are awful unless you know exactly what they're capable of. There is an extrinsic knowledge you need.

That is, you can't expect a bot to know whatever you throw at it but you're unsure what you /can/ expect it to know.

The problem is that command lines are sort of made for the expert users whereas bots are said to be the opposite.

[adyus]

The beauty of (NLP) bots is supposedly that you can just ask what they can do.

Whether that's a viable UX strategy is still up for debate.

[euyyn]

Ah, I agree. Bots need to understand language (within their domain) very broadly to be able and overcome that.