I'll be honest, . I ignored Claude Duet for a while.
I didn't get why I'd want it. I already had Claude. And earlier this year I'd tried other always-on agents, a Hermes agent and an OpenClaw. Things have moved fast since then. Less than a year, and it feels like a different era.
And I've covered the rest of the pack. Viktor lives in my Slack every day, and I put it head to head in Claude Tag vs Viktor. A stranger got me into Instinct before anyone was writing about it, so I wrote it up. I dug through Grok Bot's fine print. And I worried out loud about how cute ChatGPT Dots is. So Duet had a lot to live up to.
What I didn't get was that Duet works differently. It's not just Claude in my pocket. So I finally downloaded it. I've been using it for a few days now.
Here's what I love, what drives me nuts, and where it fits next to the tools I already use.
The traffic jam that sold me
Today a 15-minute drive took over an hour.
Normally that's a dead hour. I looked for a new podcast to listen to, and nothing caught my eye so instead, I went through a pile of emails I'd been meaning to answer. Out loud. I just talked to Duet.
By the time I got home, I had a stack of 9 email drafts ready to go.
That was unexpected. And pretty amazing.
Were they good? Yes. Pretty close to what I'd actually send.
But here's the thing. I didn't know that at the time.
The pet peeve: it can't read my drafts back to me
For some inexplicable reason, Duet couldn't read the drafts out loud to me. When I asked, it told me it could only give me synopses of the emails, which quite frankly makes no freakin' sense.
All I got was a heads-up. Something like, "There's a draft to so-and-so about such-and-such. Read it when you park."
So I was working blind. I had no idea if the drafts were good, bad, or weird. I had to wait until I got home to check.
And by then? I was busy doing something else. You know how it goes.
If Duet could've read them to me, I could've edited and sent them right there. Beep, boop, bop. Done before I pulled into the parking garage.
That's the gap. The hard part worked. The last step didn't... which oddly made more work for later.
Then it happened again
A few days after I started writing this, I was out walking Ruthie and Bristol. I figured I'd test Duet on something new.
It brought up an open task on its own. We never booked a car for Thanksgiving. And we need a rental for someone who's visiting.
So I asked for the info. I'm still not sure it ever had any.
But it had a plan. Did I want it to check SUV prices in Lower Manhattan, North Jersey and Brooklyn? Compare pickup and drop-off dates to find the cheapest combo? And figure out if the savings were worth the trip out of Manhattan?
That's exactly what I wanted. So I said yes.
Beep, boop, bop. Then it told me I had to ask the entire question.
Its own question. The one it had just asked me.
I gave it part of the request. It got to work, checked one price, and called it done.
Here's what I figured out. There are really two Claudes in a Duet call. One talks to me. The other does the work. They're not even in the same conversation.
My side gets passed along word for word. Its side? Gone the second it's said. So my "yes" made it across. The question it asked me didn't.
I wanted the transcript to check. There isn't one. Duet saves my side of the call, not its own.
The best part? Duet told me Anthropic is working on a fix. Then it wrote the feature request for me and left it for me to send.
It's the first bug report I didn't have to write myself.
So I did it myself
That rental search didn't end on the walk. It ran five rounds over three days.
Five rounds. Five different "cheapest" cars. Anywhere from $354 to almost $1,200. And nothing booked.
I kept changing what I asked for, but only because it never gave me the comparison I wanted. So I was doing the research myself and steering it by hand.
Here's what I found when I dug into why. Duet shops from a browser in the cloud. To Kayak, Priceline and Avis, that looks like a bot. So they threw up "are you human?" checks, and Duet can't answer those. It stalled, and it kept handing me partial results as if they were the answer.
The kicker? Duet can use my own browser. It just didn't, until round five. And it never once said, "Hey, these sites are blocking me. Want me to use your Chrome?"
So Sunday morning I gave up on it. I opened Chrome. One tab for Expedia, one for Kayak, one for Booking.com. Hit Command+E to pull up Claude, and said one sentence:
"Can you find me the cheapest mid-size SUV rental in Manhattan, pick up the afternoon or evening of 11/24 and drop off Sunday 11/29?"
Eight minutes later I had my answer. From all three sites. And they agreed, give or take a dollar.
Same Claude. Same morning. Different browser. No walls, because to those sites, it was just me.
I booked a car I can walk to.
Here's the lesson I'm keeping. Duet is great at remembering the errand. It's not great at running it. If the job lives on a website, do it in your own browser.
It nags me about the wrong stuff
Duet wants to be helpful. Sometimes too helpful.
It kept pushing me to work on things I didn't want to work on. Stuff that was outstanding for a reason.
The big one? Our Black Friday copy for Pictor.pro photo booth software.
Fair enough. Black Friday is coming up fast. But I don't want to make those calls alone. I want my very smart human team to weigh in. I got it as far as it needs to go. Now it's waiting on the next step.
Duet doesn't know that. It just sees a deadline and an open task. So it keeps asking. When I told it to check the email threads, it realized the information was waiting on someone else. It knows enough to be proactive because of the when. It doesn't know to learn the who before pressuring me to meet a deadline.
It knows where things are. It just can't reach them.
This one needs to work, because without it, a personal AI assistant can't actually assist me at the level I need.
I asked Duet for someone's email address. It said it didn't have it.
Then it said, wait, I know this person showed up in this other spot. Let me go get it.
And then? It didn't have access to that spot.
So close.
Same with project status. Why can't I just ask Duet where a project stands? And if something needs my okay, why can't it ping me and get a verbal yes?
It's not really about handoffs between tools. It's about the knowledge being there, all the time. When I ask a question, I want the answer now.
Where Duet fits (for me)
Here's how I've split things up:
Duet: In-between moments. I'm out, I'm driving, I'm between things. I talk to it and try to check stuff off my list.
CMUX with Claude Code: Building. When I sit down at my desk to make things.
Cowork: Desk work. When I've got a to-do list and I'm grinding through tasks.
I wish those three talked to each other better. Right now they feel like three smart people in three different rooms.
One more gripe. Part of why I got Duet was so Claude could reach my computer from my phone. But that means my laptop has to stay on. I'm looking at a VPS or a Mac Mini so my laptop isn't always running.
Is it eating my usage?
People online are loud about this. Some say Duet burns through their plan.
So I checked.
A few days in, I was at 23% of my weekly limit. Duet was 17% of that. About 4% of my week. A non-issue.
Then came the car search. Now I'm at 31%, and Duet's share is up to 22%. That's about 7% of my week, almost double. Most of that jump was Duet beating its head against rental sites that wouldn't let it in.
I'm still on track for my reset, so I'm not worried. But that's the real lesson on usage. Duet is cheap when it's helping. It gets expensive when it's stuck. If you see it running round after round on the same task, stop it and do that one yourself.
My verdict
Would I tell a fellow entrepreneur to try it? Yes, if you're already in the Claude world.
But here's the bigger point. It's too soon to fall in love with any tool. This year I went all in on OpenClaw. Then Hermes. Then Paperclip. It's been wild.
Knowing when to move on matters as much as knowing when to double down. So stay on top of every tool.
Is Duet the best product out there? No. Not yet. I've heard incredible things about Muse. I should take my own advice and try it.
But here's how I'd think about it. It's a personal assistant who can move your other projects around. I just wish it had a little more reach into those projects.
So I'm going to give it longer arms.
The fix I'm trying: a shared brain
Here's the key thing I learned, from my own use and from other users. Duet seems to be built on Chat and Cowork, not Code. It can reach your Cowork folders, your Chat connectors, and your Claude Projects. It can't reach stuff that only lives in your local Code setup.
So the fix is simple... in theory. One folder that all three tools read from. A shared brain.
If Duet knows what I know, it can find that email address. It can tell me where a project stands. And it can stop nagging me about Black Friday.
Want me to set this up for you?
Here's the thing. Most people don't need another AI tool. They need the ones they already pay for to actually know them.
That's the work I'm doing now. I build your shared brain. I connect your email, calendar, and files. I write the ground rules so Claude handles the boring stuff and leaves the rest alone.
You walk away with a Claude that knows your people, your projects, and when to back off.
I'm only taking a handful of these. Hit reply with "BRAIN" and tell me the one task you wish you never had to do again. I'll tell you if I can kill it.
I'm setting this up now. Below are the exact files I'm using, ready to copy and paste.
The shared brain: four files
Make one folder. Put it somewhere Duet can see, like a Cowork folder or a Claude Project. Then add these four files.
