The APs reporting seems to indicate “probably not” - both Israel and Iran are refusing to comment or acknowledge the strike, which gives both sides a way to step back without having to lose face. If Iran or Israel were intending to escalate, they’d be shouting from the rooftops about “see! Look what happened!”.
Still pretty scary though, wouldn’t take much for a miscommunication or misunderstanding for this to rapidly escalate even if no one wants it to.