Certainly the Agent can't do physical computer tasks, but I see those being edge cases given the whole purpose of computers is to operate digitally. They may have a keyboard for technicians, but most techs will be using portable computers as well.Sure. I was wondering whether there are things that the character has to themselves rather than having their portable computer do for them. Maybe there are computers with non means for the portable computer to connect to it, so the character has to use a physical interface?
That is not to say it can't happen, but at worst then the Expert/Agent can talk the flesh bag through the task (and in that case you will need to take the characters stat DMs into account)