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How to automate your inbox with an AI agent

I looked through 108 real cases about your inbox and pulled out what people actually did, the prompts they used and the places it went sideways. No theory, no invented success stories.

What people actually do

• Cancel and refund subscriptions by searching email and calling · Grok Bot · Email & Inbox
  Case study takeaway: grok Bot shows up in a write-up about cancel and refund subscriptions by searching email and calling. The linked post is the…
• Track subscriptions and renewals from Gmail · ChatGPT Agent · Email & Inbox
  A published walkthrough shows the writer switched on Agent Mode in ChatGPT and gave it access to her Gmail. It searched the inbox for terms like…
• Run grocery, email and photo tasks through Comet browser · Perplexity Comet · Email & Inbox
  Case study takeaway: julien Rio paid $20 a month for Comet Pro and gave its assistant logged-in access to Intermarché, his 15-year-old inbox…
• Claim refunds for delayed or cancelled flights · Claude · Email & Inbox
  From the linked report, following a flight cancellation or delay, Claude compiles the facts, examines the regulations, and composes the refund…
• Pay bills, clear inbox, and order groceries · Meta Muse · Email & Inbox
  A published walkthrough shows someone introduced Scout as their Muse agent. Scout paid bills, reached inbox zero, and ordered groceries. All tasks…
• An agent sorts 200 emails at 7am and drafts easy replies · Claude (Hermes) · Email & Inbox
  A writer built 'Hermes' on Claude and Gmail to open the inbox at 7am, flag the three or four urgent messages, file the rest and draft replies for…
• Run a customer support company end to end · Grok Bot · Email & Inbox
  A published walkthrough shows grok was given access to the company's support systems and switched between live chat, email, tickets, refunds…
• Schedule meetings by email and update the calendar · Custom agent · Email & Inbox
  From the linked report, the poster assembled a background agent that scans their inbox for meeting requests, pulls the proposed date and time from…

Browse all 1081 cases to see the rest.

Prompts to start from

These are the reusable prompts from real cases. Swap in your own details, run it once on something low-stakes, and read what the agent did before you trust it.

Go through my mail for this goal: cancel and refund subscriptions by searching email and calling. Propose labels, drafts, and unsubscribes as a checklist; change nothing until I approve.

Go through my mail for this goal: track subscriptions and renewals from Gmail. Propose labels, drafts, and unsubscribes as a checklist; change nothing until I approve.

Tools that show up most

Custom agent (22), Grok Bot (15), Claude Code (10), Claude Cowork (9), Claude (7), Meta Muse (7).

Guardrails

Start with read-only access or 'draft, don't send', and check a few drafts before trusting it to send anything.

Where it went wrong, or nearly did

• Build a bare-bones Windows VNC client from an email brief: Broken builds, a whole weekly limit used up, and still broken code after the reset.
• Run a company autonomously: Early agents made costly mistakes before later models ran a vending machine profitably.

More mess: the AI agent fails page. Related: the prompt library.