Soul document? More like ego document . Agents are beginning to look to me like extensions of the operator's ego. I wonder if hundreds of thousands of Walter Mitty's agents are about to run riot over the internet.
I agree with you in concept, but it's still 100% category error to talk like this. AIs don't have souls. They don't have egos. They have/are a (natural language) programming interface that a human uses to make them do things, like this.
It's a category error heavily promoted by the makers of these LLMs and their fans. Take an existing word that implies something very advanced (thinking, soul, etc.) and apply it grandiosely to some bit of your product. Then you can confuse people into thinking your product is much more grand and important. It's thinking! It has a soul! It's got the capabilities of a person! It is a a person!