The meaning of 立派だよ

Question

If I say:

お前は立派だよ

I tell the person that they are amazing as a person or that they did an amazing job?

Answer 1

The adjective can be applied to both works and to people. Your example sentence has no further context, so we can only assume you are talking about the person.

Answer 2

立派 is generally used in the literal sense as a positive thing, either complimenting someone or describing something in a good way.

I have also heard it used in a somewhat sarcastic or euphemistic way, such as 立派なおなか to describe a bulging (fat) stomach. With your example, 立派 is being applied to the person. But without further context, it's not easy to give a proper translation.