The answer is that the tools aren't part of the contract. People make contracts, the tools aren't (usually) relevant.
In this case, I think this could potentially be missing a critical element of a valid contract "meeting of the minds"
For example, IANAL but I have the understanding that the agents of a legal person (e.g., corporation) are specified in legal formation. The CEO, board-of-directors, etc. Is software formally assigned such a role to act on behalf of a legal person?