What Is an AI Chief of Staff? What It Does, and What It Should Never Do Alone
“AI chief of staff” now means two different things. Job boards use it for a person who runs a company’s AI programme. Software companies use it for an AI assistant that handles the follow-through around your work: the inbox, the calendar, the meeting notes, the promises made in them. This article is about the second.
We make one (Lucy, in PeerBie), so we have a view. We have tried to write the guide we would want to read before buying any of them: what the job is, which parts AI does well today, which parts it should never do without asking you, and how to tell the products apart. Prices were checked on each vendor’s own website on 22 October 2026.
What is an AI chief of staff?
An AI chief of staff is an AI assistant that connects to your email, calendar, meetings and tasks, keeps track of what needs to happen next, and does the routine follow-through for you, asking your approval before anything that speaks or acts in your name.
The name borrows from a human role. In Harvard Business Review’s “The Case for a Chief of Staff” (May–June 2020), Dan Ciampa argues that chief executives need more support than an executive assistant can provide. A good human chief of staff protects the leader’s time, makes sure the right information arrives before a decision, and chases the follow-up nobody else owns. AI is not ready for the judgement half of that job. It is increasingly good at the follow-through half.
The difference from a chatbot: a chatbot answers when you ask. An AI chief of staff already knows your day, because it can read your calendar, your mail and your notes, and it comes to you with what needs attention.
Why this category appeared
Because the follow-through no longer fits in the day. Microsoft’s Work Trend Index special report “Breaking down the infinite workday” (June 2025, Microsoft 365 data plus a survey of 31,000 workers in 31 markets) found that the average worker receives 117 emails a day and 153 Teams messages per weekday, and is interrupted every 2 minutes on average, around 275 times a day. 57% of meetings were ad hoc calls without a calendar invite. Commitments made in that stream are the ones that get lost, and keeping track of them is exactly the work a chief of staff used to do for one executive.
The seven jobs an AI chief of staff does
| Job | What good looks like | What to check before you buy |
|---|---|---|
| 1. Inbox | Sorts what needs you from what does not, drafts replies in your tone, turns requests into tasks | Does it draft or send? Which mail providers (Gmail, Outlook, several mailboxes)? |
| 2. Calendar | Finds a time, books the call, warns you when a day is overbooked | Does it ask before inviting people? Does it work with both Google and Outlook calendars? |
| 3. Meetings | Takes the notes, records decisions, pulls out action items with owners and dates | Which meeting apps, bot or no bot, and where do the action items go? |
| 4. Follow-through | Turns every promise into a task with a date and reminds the right person | Are the tasks somewhere your team can see, or only in your assistant? |
| 5. Briefs | A short morning brief: what today is, what is due, what slipped | Is it built from your real calendar, mail and tasks, or from what you typed in? |
| 6. Goals | Connects the day’s work to the quarter’s goals and flags what is behind pace | Can it read real goal data, or only a list you maintain? |
| 7. Memory | Remembers people, projects and decisions; answers questions from your files | Which file stores (Drive, OneDrive, SharePoint)? Can you see and delete what it remembers? |
What an AI chief of staff should never do alone
The useful question is not “can the AI do it?” but “what happens if it gets it wrong?”. Anything that cannot be undone, or that speaks for you to someone else, should wait for a person:
- Send an email or message in your name. A draft that waits for your OK costs you five seconds. A wrong email to a client costs much more.
- Invite people, accept or decline meetings for you. An invite is a message to other people, with your name on it.
- Delete anything. Tasks, files, emails, calendar events. Deleting is the one action you cannot review afterwards.
- Post publicly. Social posts, company announcements, replies in public channels.
- Spend money or make commitments. Orders, refunds, prices, contract terms.
- Decide about people. Hiring, performance, pay. An assistant can prepare the facts; a person decides.
Two more things to insist on: a record of every action the AI took, and a way to switch an action type off entirely. If a product lets the AI send email “automatically after the first approval”, read the settings carefully.
The risks, and how good products handle them
Prompt injection: instructions hidden in your inbox
An AI that reads your email also reads email written by strangers. OWASP lists prompt injection as the first risk in its 2025 Top 10 for LLM applications: text in a website, file or message that tries to give the AI new instructions. OpenAI’s own help page for ChatGPT agent gives the example of a malicious comment, found while the agent checks your calendar and email, that tells it to send a password-reset code to an outside website. OWASP’s advice includes human approval for privileged actions; OpenAI advises against prompts like “check my email and handle everything”. Approval before sending is not only good manners; it is the main defence.
Permissions wider than the job
When you connect Gmail, the app asks for OAuth scopes. Google tells developers to choose the narrowest scope possible, and marks some as restricted: full mail access can even delete all your email permanently. Check what each assistant asks for, whether the vendor has passed Google’s security assessment for restricted scopes, and whether connection tokens are stored encrypted.
Your data and AI training
Ask two questions: is my content used to train AI models, and where is it processed? Business terms differ from consumer terms. OpenAI says it does not train on business data by default on its Business, Enterprise and Edu plans; Google says Gemini in Workspace does not use your content to train its models. Personal plans can have different rules, so read the terms of the plan you actually buy.
Kinds of AI chief of staff, and what they cost
Few products cover all seven jobs. Most start from one and add the rest, so the useful first question is which one matters most to you.
| Product | Starts from | Price checked 22 Oct 2026 (per user a month unless stated) | Approval before acting |
|---|---|---|---|
| Fyxer | Inbox: drafts in your tone, labels, meeting notes | Pro $37 annual, $49 monthly; free tier | Drafts only; you decide what is sent |
| Superhuman | Email client with AI drafts | Business $33 annual (AI drafts on Business); Starter $25 | Drafts |
| Motion | Calendar and tasks: plans your day | Pro AI $19 monthly (less billed annually) | Not documented on its pricing page |
| Read AI | Meetings, plus search across email and messages | Pro $15 annual, $19.75 monthly; free tier | Not an email-sending assistant |
| Alfred | Inbox triage, morning briefs, follow-ups | Starter $25 billed annually; 7-day trial | Says nothing goes out until you approve |
| Lindy | General agents across 1,500+ apps | Team from $29.99 a month, with 3,000 credits | Actions with outside impact wait for approval |
| Microsoft 365 Copilot | Copilot inside Outlook, Teams and Office | Copilot Business $21 annual (add-on to a Microsoft 365 plan) | Not checked |
| Gemini in Google Workspace | Gemini inside Gmail, Calendar, Meet and Docs | Included in Workspace plans | Not checked |
| ChatGPT agent | A general agent that browses and acts | On paid ChatGPT plans | Asks for confirmation on high-impact actions |
| Claude Cowork | A general agent for documents, files and research | Claude Team $20 per seat annual | Always asks before permanently deleting files |
| Lucy (PeerBie) | Meetings and follow-through, for a person or a whole team | Lucy app free, Pro $9.99; in PeerBie, Pro $15 + Lucy add-on $20 | Asks before sending, deleting or posting |
A rough guide: if email is the problem, an inbox-first tool is the most direct fix. If you already live in Microsoft 365 or Google Workspace, try the AI you may already pay for. If the problem is that things agreed in meetings and messages do not get done, look at tools that start from meetings and follow-through.
Personal or team: the question most guides skip
Most AI chiefs of staff work for one person: they see your inbox and your calendar. That is enough to keep your own promises. It is not enough to keep a team’s, because the task you agreed with a colleague lives in their list, not yours. A team version needs a shared place for tasks, projects and goals that the AI can read and update for everyone, with each person’s permissions respected. Decide which one you are buying before you compare features.
How Lucy works as an AI chief of staff
Lucy comes in two forms. The Lucy app is a personal assistant on your phone. Lucy inside PeerBie is the team version, for a workspace with shared tasks, goals and chat.
For one person: the Lucy app
Record a meeting, a call or a thought, and Lucy writes the notes, pulls out what you promised and turns it into dated tasks; the next morning’s brief shows them next to your calendar, and in the evening she closes the day with you. On Pro ($9.99 a month or $79.99 a year) she connects to Gmail and Outlook and your Google or Outlook calendar, joins your Zoom, Meet and Teams calls as a silent note-taker, and talks by voice. The free plan covers 120 minutes of your own recordings a month, without calendar or email. The app is on Google Play; the iPhone app is coming soon to the App Store.
For a team: Lucy in PeerBie
Inside PeerBie, Lucy works across the whole workspace: she reads Gmail and Outlook and drafts replies, books Zoom, Meet or Teams calls, takes the notes and turns action items into tasks with owners (see meetings), drafts goals and flags what is behind pace (see Goals & OKRs), writes Word, PDF and Google Docs, and answers questions from Drive, OneDrive and SharePoint files. She acts in 30+ connected tools. You can also hire AI employees for a role, such as a social media manager; they propose work each morning (at most 12 suggestions a day for the workspace) and act only after you approve.
Approval is built in. Sending, deleting and posting wait for your OK, and every action becomes a task you can open. See Lucy and AI employees.
Trust. PeerBie has passed Google’s CASA security assessment and OAuth verification, is a Microsoft verified publisher, and Google and Microsoft connections are stored encrypted. PeerBie is hosted in Germany; the AI features use providers in the US (Google Gemini, OpenAI, and Recall.ai for meeting notes), so content you send to Lucy is processed there. We do not use your data to train AI models. Details on our security page.
Price. The Lucy AI add-on is $20 per user a month on Pro ($15) and above, $35 in total billed annually, with no credits; it is not available on the free or Basic plans. Already using Claude or ChatGPT? The PeerBie connector lets them read and update your tasks, projects and goals.
Where Lucy is weaker
- She does not operate your computer. General agents such as ChatGPT agent or Claude Cowork can browse and work with files on their own; Lucy works through the tools you connect.
- Not an email client. If inbox speed is the whole problem, Superhuman or Fyxer go further on email itself.
- Fewer connections than the widest agents. Lucy acts in 30+ tools; Lindy lists 1,500+.
- The team version needs PeerBie Pro plus the add-on. It is not a layer on top of the task tool you already use.
- iPhone is not out yet. The Lucy app is on Android today.
Eight questions to ask before you choose
- Which of the seven jobs matters most to you, and does the product start there?
- For one person or for a team? Where do the tasks it creates live?
- What does it do without asking, and can you switch each action type off?
- Is there a record of everything it did?
- Which permissions does it ask for in Gmail or Outlook, and has it passed Google’s security assessment?
- Is your content used to train AI models, and where is it processed?
- Is the price per user, per credit or per action? What happens when the credits run out?
- Does it work in the meeting apps, mail providers and languages your team uses?
If meetings are where your follow-through breaks, our comparison of AI note-takers looks at that job in depth.
Frequently asked questions
What does an AI chief of staff do?
It connects to your email, calendar, meetings and tasks and handles the follow-through: sorting and drafting email, booking meetings, taking meeting notes, turning promises into dated tasks, sending you a morning brief, tracking goals and remembering people and decisions. A good one asks before it sends, deletes or posts anything.
Is an AI chief of staff the same as an AI executive assistant?
They overlap. “Executive assistant” usually means inbox and calendar help. “Chief of staff” adds follow-through: making sure what was agreed in meetings and messages gets done, and connecting the day’s work to goals. Product names vary more than the products do, so compare what each one actually covers.
Is it safe to give an AI assistant access to my email?
It can be, if the product asks for approval before sending, keeps a record of every action, requests only the permissions it needs, has passed Google’s security assessment for restricted Gmail access, stores tokens encrypted and does not train AI models on your data. Instructions hidden in incoming email (prompt injection) are the main risk, which is why approval before sending matters.
Will an AI chief of staff replace a human chief of staff?
Not the judgement part of the job: setting priorities, handling people and deciding what matters. It can take over much of the follow-through, such as notes, reminders, drafts and status updates, which leaves a human chief of staff, or a busy manager without one, more time for the decisions.
How much does Lucy cost as an AI chief of staff?
The Lucy app for one person is free to start (120 minutes of recordings a month), and Pro is $9.99 a month or $79.99 a year with email, calendar, voice and the meeting note-taker. For teams, Lucy inside PeerBie is a $20 per user monthly add-on on Pro ($15) and above, $35 in total billed annually, with no credits.
Meet Lucy in your own workday
Try PeerBie Pro with the Lucy add-on free for 14 days, no credit card needed, or walk around the live demo workspace without signing up. Just for yourself? The Lucy app is free to start, with a 7-day Pro trial.
Prices and features checked on each vendor’s website on 22 October 2026. If you spot something out of date, tell us at [email protected].
