An executive assistant's day is a hundred small drafting and summarizing tasks stacked on top of each other: replies, reschedules, briefs, itineraries, follow-ups, minutes. AI is built for exactly that shape of work, and with the right inputs it produces a usable draft in seconds.
The tools that matter most already live inside your mail and calendar. Microsoft 365 Copilot in Outlook and Teams, and Gemini in Gmail, Calendar, and Docs, summarize threads, draft replies, and prep meeting notes without you copying anything out of the system, which matters because your executive's inbox is often the most sensitive information in the company.
So the skill is twofold: briefing an assistant that types faster than you, and knowing exactly which information never leaves your approved tools. Board matters, deals, personnel issues, legal threads, and the executive's family details are the obvious ones.
Quick wins this week
- Ask the assistant built into Outlook or Gmail to summarize the 40-message thread your executive was cc'd on, listing decisions and open asks. Check it against the last three messages.
- Paste three non-confidential emails your executive wrote and ask for a style guide: sentence length, greeting, sign-off, words they never use. Reuse it in every drafting prompt.
- Give it tomorrow's calendar (titles and times only) and ask for a one-page day brief with the prep needed per meeting and the travel buffers.
- Draft five versions of the same decline ('the CEO cannot attend') for a board member, a vendor, an employee, a reporter, and a charity.
What AI can do for executive assistants, task by task
Inbox triage and thread summaries
Use the assistant inside Outlook or Gmail so nothing leaves your tenant. Ask for decisions made, asks of your executive, and deadlines, in that order. Verify against the newest messages; summarizers miss tentative tone and will report a 'maybe' as a 'yes'.
Drafting replies in your executive's voice
Start every drafting prompt with the style guide built from their real emails, then paste the thread and state the outcome you want. Check names, dates, and commitments before sending; the draft will happily promise a meeting slot that does not exist.
Calendar scenarios and reshuffles
Describe the constraints (fixed meetings, travel, time zones, who can move) using code names for sensitive titles, and ask for three ways to fit the new priority. Copilot and Gemini can also propose times from real availability. Check travel buffers yourself; the model does not know your city.
Meeting prep briefs
Ask a research tool for public background on each external attendee and their company, then combine it with the agenda, the last interaction, and three suggested questions. Verify every bio detail; models confuse people who share a name and cite outdated roles.
Minutes and action items from transcripts
Let an approved notetaker transcribe, then ask for decisions, owners, and due dates in a table. Fix misheard names and numbers before distributing. Do not send a third-party bot into board, legal, HR, or compensation meetings; take those notes yourself.
Travel and expense documents
Paste confirmations with booking, passport, and card numbers removed, and ask for a clean itinerary in local times with ground transport and time-zone math. Verify flight times on the airline site; models invent schedules. For expenses, photograph receipts and ask for a table categorized to your policy, then check totals.
Prompts for executive assistants
Replace the bracketed placeholders, paste into any chat assistant, and iterate on the result.
Build a voice guide from your executive's emails
You are a writing coach. Below are [NUMBER] emails written by the executive I support, with confidential details removed. Analyze them and produce a voice guide I can paste into future prompts: sentence length, greeting and sign-off, formality, phrases they use often, words they never use, how they say no, and how they deliver bad news. Add three example openings. Keep it under 200 words. Emails: [PASTE THE EMAILS]
Tip: Refresh the guide every quarter; people's writing drifts.
Draft a reply in the executive's voice
You are drafting an email for [EXECUTIVE NAME AND TITLE]. Voice guide: [PASTE THE VOICE GUIDE]. Thread: [PASTE THE THREAD]. Desired outcome: [WHAT THE REPLY MUST ACHIEVE]. Constraints: [ANYTHING NOT TO PROMISE OR MENTION]. Write the reply under 120 words in their voice. Commit to nothing I did not list. Where a decision is missing, write [DECISION NEEDED] and ask me. End with a one-line summary of what the reply commits to.
Tip: Read the closing summary first; it is your send-or-hold check.
Day-of brief from tomorrow's calendar
You are an executive assistant preparing a daily brief. Tomorrow's calendar with titles, times, locations, and attendees: [PASTE THE CALENDAR]. Time zone: [TIME ZONE]. Prep material I have: [LIST DOCS OR NONE]. Produce a one-page brief: the day in one sentence; each meeting with its purpose, what my executive must decide or bring, and prep still missing; buffer problems (flag under 15 minutes between locations); and three things to handle before 8 a.m. Ask about anything ambiguous.
Tip: Paste titles and times only if the calendar holds sensitive meeting names.
Minutes and action items from a transcript
You are taking minutes. From the transcript below, produce: (1) a five-sentence summary, (2) a table of decisions with who made them, (3) a table of action items with owner, due date, and the timestamp where each was agreed, and (4) open questions. Use only what was said; if a name or number is unclear, write [CHECK] rather than guessing. Attendees: [LIST ATTENDEES] Meeting purpose: [PURPOSE] Transcript: [PASTE THE TRANSCRIPT]
Tip: Resolve every 'CHECK' against the recording.
Three calendar scenarios for a new priority
You are helping me re-plan an executive's week. Fixed commitments: [LIST WITH TIMES]. Movable meetings and their owners: [LIST]. Travel and time zones: [DETAILS]. New priority to fit: [WHAT AND HOW LONG]. Rules: nothing before [EARLIEST START], at least [BUFFER MINUTES] between locations, protect [PROTECTED BLOCK]. Give three scenarios in a table: what moves, who I must ask, and the trade-off, ranked by fewest people disturbed. Ask if any constraint is unclear.
Tip: Use code names; the model does not need to know it is an acquisition.
Want a prompt for something else? Use the Prompt Builder or browse career and job search prompts, meetings and summaries prompts, planning and productivity prompts, writing and email prompts.
Skills to build
Briefing the AI like you brief a new hire
Why: Half-briefed assistants produce polished drafts that solve the wrong problem, and a draft you have to rebuild saved nothing.
How: Every prompt gets context, the outcome you want, constraints, format, and the voice guide. Save the skeleton as a text snippet and fill it in.
Working inside the tenant
Why: Copilot and Gemini for Workspace read the real mailbox and calendar, and inherit your organization's data protections instead of a consumer tool's defaults.
How: Ask IT which features are licensed and on, then learn the summarize, draft, and find-a-time functions in your own mailbox before touching anything sensitive.
A personal confidentiality rulebook
Why: The distance between a handy draft and a leaked board matter is one careless paste.
How: Write a red list (board, deals, legal, personnel, compensation, medical, family, credentials) and a green list of what may go into which tool. Re-read it monthly.
Verifying names, dates, and numbers every time
Why: A wrong flight time, a misspelled board member, or an invented commitment costs more than the minutes AI saved.
How: Before anything leaves your hands, check every proper noun, date, time, and number against the source: the airline site, the calendar, the original thread.
Spotting AI-enabled impersonation
Why: Voice clones and polished phishing emails target assistants because you can move money, calendars, and access on the executive's behalf.
How: Adopt a callback rule: any urgent request for payments, gift cards, credentials, or a schedule change gets verified on a known number, whoever appears to be asking.
Tools worth knowing
Microsoft Copilot
AI inside Word, Excel, Outlook, and Teams, with your company's data protections.
Gemini
Google's assistant, strongest when your work already lives in Google Workspace.
ChatGPT
The general-purpose AI assistant most of your coworkers already use.
Claude
A careful writing and analysis assistant that shines on long documents.
Otter.ai
Meeting transcription and summaries that follow you into Zoom, Teams, and Meet.
Zapier
Connect thousands of apps with no-code workflows, now with AI steps, agents, and chatbots
Cautions for executive assistants
Your executive's mail and calendar hold deal names, board matters, personnel decisions, privileged legal threads, compensation, medical details, and family information; at a public company some of it is material non-public information. Never paste any of it into a personal or free AI account. Use the assistant inside your Microsoft 365 or Google Workspace tenant or an IT-approved enterprise plan, and remember that meeting titles alone can reveal an acquisition.
AI notetakers record everyone, and several states require all-party consent, so announce it and ask on every call. Keep bots out of board, legal, HR, and compensation meetings, know where transcripts are stored and for how long, and delete recordings the organization does not need to keep.
Attackers use AI-cloned voices and convincing emails to impersonate executives, and assistants are the target because they can act on the executive's behalf. In 2024 a finance employee at the engineering firm Arup was tricked by a deepfake video call into transfers reported at about 25 million dollars. Verify any urgent payment, gift-card, credential, or access request by calling back on a known number.
Models invent flight times, hotel addresses, and who said what; check every detail against the source. Tools connected to your tenant can also surface any file you have permission to see, including ones shared too widely, so ask IT about permission hygiene and never forward an AI summary of a document you were not meant to see.
Your 30-day plan
- Week 1: Confirm with IT which tools are approved and whether Copilot or Gemini features are licensed for your mailbox. Write your red list and green list.
- Week 1: Build the voice guide from non-confidential emails, draft five replies with it, and compare them with what your executive actually sends.
- Week 2: Start a daily brief routine from the calendar and a one-page prep template for external meetings. Verify every bio.
- Week 3: Pilot minutes on one low-stakes recurring meeting with consent language in the invite, then add the travel and expense workflows.
- Week 4: Automate one recurring task with Zapier (new transcript to draft follow-up), agree with your executive on what AI touches, and count the hours saved.
Frequently asked questions
Will AI replace executive assistants?
Is it safe to use ChatGPT for my executive's email?
Copilot or Gemini: which is better for an executive assistant?
Should I let an AI notetaker join every meeting?
Terms used on this page
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