Why does handing an AI a few tools change the safety picture so much?

Think about the difference between someone who can give you directions and someone who is holding the car keys. A chatbot that only writes text can be wrong, even confidently wrong, and the worst case is you read something daft. Give that same model a tool that sends emails, moves money or runs commands, and a mistake stops being words on a screen.

The jump is from advice to action

Once a model can act, small errors compound. It takes a step, sees the result, takes another. If step one was slightly off, step five can be somewhere nobody intended. And it happens fast, without a human pausing to sanity-check each move.

Then why give them tools at all, if that is where the danger creeps in?

Because that is also where nearly all the usefulness lives. An assistant that can actually book the thing, file the ticket or fix the bug is worth far more than one that just describes how. The trick is not to lock the tools away. It is to make the powerful ones ask before they leap.