This is the one that genuinely feels like having a personal assistant. You connect Claude to your Gmail, paste one prompt, and it reads every unread email, ranks them by how much they actually matter, and writes a reply to each one that sounds like you. It hands the whole thing back as a spreadsheet you can scan in a minute.

One honest note before the magic. It drafts, it does not send. Claude writes the replies and lines them up, but nothing leaves your inbox until you read it and hit send. That's exactly how you want it. Here's the setup, the exact prompt, and 20 more ways to put it to work.

Setup, about 30 seconds

You only need to connect Gmail once.

  1. In Claude, open Customize, then Connectors.
  2. Find Gmail, click Connect, sign in with Google, and approve the access.
  3. Open a new chat and turn the Gmail connector on for that chat.

That's it. Claude can now read and draft, never send on its own.

The exact prompt

Paste this into a new chat with Gmail connected. Swap nothing, it works as is.

Connect to my Gmail and go through all of my unread emails. First, read a handful of emails I've actually sent so you can learn my voice: my tone, my usual length, and how I sign off.

Then build me a spreadsheet, one row per unread email, with these columns:
1. Priority score from 1 to 10 (10 = most urgent and important, based on who it's from and what they're asking)
2. Sender
3. Subject
4. One line on what they actually want
5. A ready-to-send reply written in my voice

Sort it from highest priority to lowest. Keep the replies short and natural, like I'd actually write them. Do not send anything. When the spreadsheet is done, ask me which replies I want you to drop into my Gmail drafts.

Claude builds the spreadsheet, and at the end you just tell it which drafts to load into Gmail. Open each one, give it a glance, and send.

20 more ways to use it

The inbox spreadsheet is the headline. Here are 20 more, same idea, your assistant doing the boring parts. Most use the Gmail connector, a few use Calendar or Notion if you've connected those.

  1. Morning triage: "Summarize my unread email into what needs a reply today, what can wait, and what I can ignore."
  2. Chase no-replies: "Find emails I sent that never got a response and draft a friendly nudge for each."
  3. Unsubscribe sweep: "List the newsletters and promos I never open so I can clean them out."
  4. Catch up on a thread: "Summarize this long thread in 5 bullets and tell me what's still unresolved."
  5. Meeting prep: "Before my call with [person], pull our recent emails and brief me on where things stand."
  6. Schedule from email: "Look at my unread emails and my calendar, and tell me what needs a time booked."
  7. Find the file: "Find the email with the contract attachment from last month and pull it up."
  8. Email from bullets: "Turn these three bullets into a polished email in my voice to [person]."
  9. Polite no: "Draft a kind decline to all the requests in here I don't have time for."
  10. Expense roundup: "Pull every receipt in my inbox this month into a spreadsheet for expenses."
  11. Weekly recap: "Summarize everything important that hit my inbox this week."
  12. Tone shift: "Rewrite this reply to sound warmer," or firmer, or shorter.
  13. Approve in batches: "Draft replies to all of these and walk me through them one at a time."
  14. Post-trip cleanup: "I was away a week. Sort everything that came in by what still actually matters."
  15. Track your promises: "Scan my sent mail and list everything I said I'd do and haven't yet."
  16. VIP filter: "Flag any email from [important people] and draft a fast reply to each."
  17. Newsletter digest: "Summarize the newsletters in my inbox into one short brief so I don't open them."
  18. Notion handoff: "Take the action items from these emails and add them as tasks in my Notion."
  19. Know the sender: "Before I reply, remind me who this person is and what we last talked about."
  20. Recurring report: "Every Friday, build a spreadsheet of this week's leads from my inbox with their status."
The reason this hits is that email isn't hard, it's just heavy. It's the deciding, the sorting, and the first draft that eat your morning. Hand those three to Claude and you go from a full inbox to a list of things to glance at and send.

Connect Gmail, run the prompt once on a messy inbox, and you'll see why this is the closest thing to having an assistant for free.
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