Three things. An AI employee can't do work that needs hands. It can't work inside a tool it can't connect to, which is rare now. And it can't pick up the phone. If someone on your staff does the job at a keyboard, an AI employee can do that job, start to finish. The things people usually worry about, like promises, signatures and money, aren't limits. They're decisions you make about how much your AI employee does on its own, the same way you would with any new hire.
Say you're a financial planner. Most of your clients are women sorting out their money after a separation, and the work runs on paperwork: bank statements, pension statements, the list of what's owned and what's owed, the summary that goes to her family lawyer.
You've added an AI employee. Call him Max. His job is client paperwork coordinator. He sends each new client the list of documents you need, chases the ones that haven't come in, files what arrives in her folder, updates her file, and drafts the reply when she emails to ask where things stand. He reports to your office manager, Jen.
Here's Monday. Max sent document lists to three new clients. He chased two women who were still missing a pension statement. He filed eleven PDFs into the right folders, updated four client files, and drafted replies to six client emails. Jen read the six drafts with her coffee and sent five.
So what can't he do? Less than you'd think. And not the things people usually ask me about.
The test I use: if a person does the job at a keyboard, an AI employee can do it
When a business owner asks me whether an AI employee can take on a job, I ask one question back. Does the person doing it now do it with a keyboard and a mouse?
Log in to the client system. Read the email. Find the statement. Update the file. Draft the reply. Put the meeting on the calendar. If that's the job, an AI employee can do it, and do the whole thing, not a piece of it. That's the difference between an AI employee and the AI tools you may have tried. A tool does a task and hands it back to you. An AI employee does the job. I've written about why that matters in Should you give an AI employee a name?.
Max's job passed that test on the first pass. Every part of it happens in your email, your calendar and your client folders. That's why he does all of it, not the easy half.
He also gets better at it. He has a number his job is judged on, which for Max is how many client files are complete before the meeting with her lawyer. He has the rules Jen gave him and the corrections she's made. Every piece of work he does is checked against that, and the next piece is better for it. It's the same reason a person who's been in the job three months is better than they were in week one.
The three things an AI employee can't do
I keep this list short because it is short.
Anything that needs hands. A client walks in with a shoebox of statements. Someone at your desk takes the box, says something kind, and scans the contents. Max can't take the box. Once the statements are PDFs in her folder, they're his. The same goes for anything physical in your practice: the mail, the signature on paper, the chair across from you.
A tool it can't connect to. Max works inside the software your practice runs on. Nearly everything a practice like yours uses connects now: email, calendar, booking, the client system, the accounting software. It's the first thing I check with a business owner, before anything else. Once in a while there's one odd piece of software that doesn't connect. When that happens, that one piece stays with a person, or we talk about whether the odd piece is worth keeping.
The phone. Max works in writing. He can't make a call and he can't answer one. The client who wants to hear your voice before she decides, that's you, and it should be. The lawyer who returns your call, that's you too. Voice AI exists and it's getting better. It isn't what I build, and in a practice like yours it isn't the job I'd hand over.
That's the list. Everything else your staff do at a keyboard, an AI employee can do.
What people think an AI employee can't do, and what's actually your decision
When someone asks me what an AI employee can't do, they usually mean something else. Can it promise a client a deadline? Can it send an invoice? Can it sign something in the practice's name? Can it delete a file?
Those aren't limits. Max can draft a reply that promises Friday. He can send the invoice. The question is whether you want him to, and at what point. That's a decision about how much he does on his own, and it's yours to make. It's the same decision you make with every new hire.
Take the sixth draft on Monday, the one Jen didn't send. A long-time client had emailed to ask whether her settlement summary could be ready by Friday, because her lawyer wanted it before the meeting. Max's draft was polite, clear, and said yes. You write the summary, and you're out Thursday.
Jen caught it because Max is in his third week, and in his third week she reads every client reply before it goes. Then she did what she'd do with a new person: she told him. Anything that promises a deadline, check the calendar first, and send it to her before it goes out. He hasn't made that mistake since.
Here's how I set that up with a business owner, before the AI employee touches a client email. We write down what he can send on his own and what a person reads first. At the start, the read-first list is long. Jen reads everything. As he earns it, the list gets shorter, until a person is reading the few things that matter most: a promise to a client, anything with your signature on it, anything that moves money, anything that deletes. In most practices I work with, those four stay on the list. Not because he can't. Because your name is on them.
I can't guarantee his exact output, any more than you could guarantee the words of a person you hired last month. That's why Jen reads, and why the list exists. In my own business, the person doing the reading is me. I still send work back. I send less back than I did.
What stays with people, and why that's the point
Jen's job didn't shrink when Max started. The paperwork chasing was never her whole job. It was the part she did at six o'clock, after the clients had gone. Now she reads his work in the morning and spends six o'clock somewhere else.
And the parts of your practice that need a person are still yours. The woman in the chair across from you, scared about money for the first time in twenty years. The judgment call about what goes in her summary. The phone call to her lawyer. That's the work you trained for, and it was getting squeezed by the paperwork. Max takes the paperwork. You keep the work.
If you want to run a job in your practice through the keyboard test, book a Let's Chat AI call. It's 30 minutes. Bring the job you'd most like off your desk.