How to Set Up Claude Duet So Its Morning Brief Actually Helps a One-Person Business

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It is 7:40 on a Tuesday. You have a client call at 9, two invoices that are a week overdue, a supplier email you meant to answer on Friday, and a calendar that somehow double-booked Thursday afternoon. Before you have finished your coffee, your phone shows a short note: three things need you today, here is a draft reply to the supplier, the two unpaid invoices have reminder emails ready for your approval, and Thursday has a conflict you should fix.

That is the promise of Claude Duet, a new app from Anthropic that opened as a research preview in October. Instead of waiting for you to type a question, it works as a proactive agent, meaning an AI that checks your connected apps on its own, tells you what needs attention, and does the groundwork, while asking before it acts on your behalf. This guide walks you through getting in, connecting the right apps, and setting it up so the morning brief actually helps a one-person business instead of adding noise.

First, check whether you can get it

Right now Claude Duet is limited. According to Anthropic’s getting started guide, you need:

  • A Claude Pro or Max plan on a US account (it is not on Team or Enterprise plans yet).
  • An invitation from the waitlist, which goes out in waves with no guaranteed date.
  • An iPhone or Android phone. Duet is set up as a phone app.

It is free to use during the preview, but it draws from your normal Claude usage limits, and its background work (like the morning brief) counts too. Keep that in mind if you already hit your limits often.

Step 1: Join the waitlist with the right email

This sounds trivial, but it trips people up. Access is tied to the email you give on the waitlist, and that email should match both your Claude account and the Apple or Google account on your phone. When you sign up, you can also describe your work and what you would hand off first. Be specific (“I run a solo bookkeeping practice and want help chasing unpaid invoices and preparing for client calls”). It costs nothing and gives the team a clear picture of your use case.

Step 2: Connect only the apps that run your day

Duet reuses the connectors you have already set up in Claude, so start in Claude’s settings. Connectors are the links that let an AI read and work inside your other apps (we explained the idea in our beginner’s guide to MCP). Options include Gmail, Google Calendar, Google Drive, Slack, QuickBooks, HubSpot, Docusign, Calendly, and a Stripe connector that can spot unpaid invoices and draft reminders for your approval.

My advice: start with two or three, not ten. For most solo owners, that means:

  1. Email (Gmail), because that is where most requests and loose ends live.
  2. Calendar, so it can prepare you for meetings and catch conflicts.
  3. One money app, such as Stripe or QuickBooks, so it can flag overdue payments.

You can add more once you trust it. Every connection is one you start yourself, and you can disconnect any app at any time. Note that Microsoft 365 is not supported yet, and Slack works with some limitations.

Step 3: Tell it what “urgent” means for your business

Anthropic is honest that Duet can misjudge what is urgent or misread a thread. The fix is to teach it your priorities in your first conversation. Open the main thread (you can type or send a voice message) and give it a short brief like this:

“I run a one-person bookkeeping practice. Urgent means: a client asking about a deadline, a payment over 7 days late, or a meeting in the next 24 hours I have not prepared for. Not urgent: newsletters, vendor promotions, and anything from no-reply addresses. Keep my morning brief to five items or fewer.”

The cap on items matters. A brief with 20 bullets is just your inbox again. Five forces it to choose.

Step 4: Give it one recurring job to start

Duet can schedule meetings, build dashboards, prepare forecasts, and chase invoices. Resist the urge to hand it everything on day one. We made the same argument about OpenAI’s always-on agent in our piece on why agents should get one job from a solo business, not ten, and it applies here too.

Good first jobs for a solo owner:

  • Invoice chasing: “Every Monday, find unpaid invoices over 7 days late and draft a polite reminder for each. Show me before sending.”
  • Meeting prep: “Before each client call, give me a three-line summary of our last emails and any open questions.”
  • Inbox triage: “Each morning, draft replies to anything that just needs a yes, a time, or a link.”

Finished work like briefs, dashboards, or slide decks shows up in the app’s Make tab, and the Tasks tab shows what is in progress and what needs your input.

Step 5: Keep your approvals tight

This is the part I would not skip. Duet is designed to show you the planned action and wait for approval before it sends messages, makes payments, signs documents, or deletes anything. Some actions are off limits even with approval, such as trading securities or moving money between accounts. Purchases go through a one-time card limited to that purchase.

Still, an approval only protects you if you read it. Because Duet reads emails and web pages written by other people, it can run into misleading instructions hidden in that content, a risk known as prompt injection. Anthropic says plainly that no defense is perfect, which is exactly why approvals exist. A few habits help:

  • Read the recipient line on every email it wants to send.
  • Check the number on every invoice reminder against your own records. Duet names the source file or email for figures it reports, so click through.
  • Never approve a payment you did not ask for, even if the reasoning sounds sensible.

For a broader checklist on giving any AI agent access to your accounts, see our guide to 5 rules to set before giving an agent an account.

Step 6: Review after one week

After seven days, ask yourself three questions. Did the morning brief surface anything you would have missed? How many drafts did you send without major edits? Did it burn through your usage limits? If the answers are “yes, most, and no,” add one more job. If the brief is noisy, tighten your definition of urgent. If you keep rewriting its drafts, give it two or three examples of emails you have written yourself so it can match your tone.

What Duet cannot do yet

It helps to know the edges before you rely on it. During the preview, you cannot choose the model (it runs on Claude Opus 5.5), you cannot watch or take over its browser, it cannot make phone calls or send texts, and it checks your accounts at set intervals, so a truly urgent email may wait until the next check-in. Coverage from outlets like Digital Trends frames it as Anthropic’s answer to rival agents, which is a reminder that this whole category is young.

Is it worth the waitlist?

If your days are a stream of small follow-ups (invoices, scheduling, replies that just need a yes) and you already pay for Claude Pro, it is worth joining the waitlist now. Set it up narrowly, teach it your version of urgent, and keep your hand on every approval. Treated that way, it is less a robot employee and more a very organized assistant who drafts everything and sends nothing without you.

What is the one recurring task you would hand to an agent first? Tell us in the comments, and we will build a starter brief for the most popular answers.

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