Well, since I can't read the bastard's mind, I'm going to have to judge his intent by what I see.
Is there anything in the house worth stealing? Then yes, I'm going to have to assume that his intent is to steal.
Is there anything in the house worth more than the cutoff for the theft to be a felony? Then yes, I'm going to have to assume that his intent is felony theft.
Is there anyone in the house who would be vulnerable to an assault? Then yes, I'm going to have to assume that his intent is to commit an assault.
All of this is subject to
his disproving that his intent is not so. If, for example, he apologizes, explains, backs out, and generally acts in a conciliatory, non-threatening manner, I will have reason to reconsider my judgment of his intent. But my general willingness to give everyone the benefit of the doubt was destroyed, in his case, when he forcibly entered my house.