This summary is not the rule. The rule text controls.
A licensed legal intern can't work alone. Everything an intern does has to be watched and directed by an attorney who has been approved to supervise them.
Before an intern takes on any part of representing a client, they need to sit down with their supervising attorney and go over what will happen in that specific case. This means talking through the steps involved and what could result from those steps. The intern can't just handle a case on their own judgment, even if they feel confident about it.
The point of this rule is to protect clients. Legal interns are still learning, so they need a licensed attorney checking their work and guiding their decisions at every stage. This ensures someone with full legal training is accountable for what happens in the case, not just the intern.