An AI agent is an AI tool that doesn't just answer questions but takes actions for you: reading your email, updating your CRM, booking appointments, moving files or sending messages. That's what makes it useful, and it's also why it needs limits. An agent can do anything its access allows, so the first question is always what it can see and what it can do.
A chatbot talks. An agent does.
When you connect an AI agent to your tools, you give it a login and a set of permissions, the same way you’d give a new hire an account. From then on it can act on its own: read the inbox, draft replies, look up a customer, change a record, schedule a call, move a file, sometimes send money.
That’s the whole appeal. It’s also the whole risk. An agent has the access of an employee without an employee’s judgment. If it’s allowed to send email, it can send the wrong email. If it can read every folder, it can repeat what’s in them.
What a well-set-up agent looks like
- It can see only what its job needs.
- It drafts, and a person approves anything that sends, pays or deletes.
- Everything it does is logged.
- You can turn it off in minutes.
Those four lines are most of what I check in an AI security audit.
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