Real AI agent use cases, with sources and setup prompts
Short answer: There are two ways in. Ask an agent to build a file, for example Claude Code writing a model.xlsx where every number outside the Assumptions tab is a live formula. Or connect the agent to the sheet, using Claude's Google Sheets integration, a Grok Bot with Google Sheets connected, or an n8n or MCP connection. Builders below run 3-year financial models with bear, base and bull scenarios, a bookkeeping sheet that categorizes transactions, an invoice chaser that drafts reminders from a sheet and a Monday competitor price log. Keep inputs on one tab and outputs as formulas, and have the agent check that every formula calculates. Let it read and draft freely, but approve any email or payment it triggers.
How people let agents build and update spreadsheets, from a 3-year Excel model with every cell a formula to a Grok Bot that chases unpaid invoices from a sheet. 22 matching use cases below, each with a public source.
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Keep invoices in one Google Sheet, connect Sheets and Gmail, and have the bot draft polite reminders for overdue ones. An auto-review rule makes every external email wait for your yes; reminders get firmer each round and are logged in the sheet.
Have the bot claim its own email address, join competitors' mailing lists and connect Google Sheets. After a week it sums up their offers and launches, logs prices to a sheet, saves that as a "rival watch" skill and runs it every Monday at 9am, flagging any price that moved.
Family Book is a Grok Bot template: snap a receipt or let it read order emails, and it files receipts in your cloud storage and keeps the yearly income and expense book in Google Sheets or Excel Online, in any currency and language.
A media buyer managing over $200K a day in affiliate and ecommerce spend plugged Google Ads, YouTube, Everflow, Lead Prosper and Google Sheets into Grok Bot. It checks real margin hourly, applies his own cut and scale rules, flags ads spending 3x target CPA and scores ads by lead quality.
A supplier early-warning system built with n8n, Google Sheets and Slack: it detects risky deliveries, scores customer impact, alerts Slack and drafts supplier escalation emails.
In a public talk, an engineer described how his Grok Bot researched 35 rentals in Singapore, put them in a Google Sheet, sent it to his wife, booked viewings and negotiated the leases.
Gemis Bot is an AI customer support assistant built with n8n: it answers course inquiries, collects and qualifies leads, saves details in Google Sheets and sends contacts to HubSpot for follow-ups.
A Client Hunter automation built with n8n: lead generation, website analysis, AI-personalized outreach, Google Sheets tracking, Gmail sending and follow-up tracking.
A founder lists the agent crew that runs his business on Claude Max: Stripe tracking, Vercel deploys, a Gmail agent that drafts but never sends, a Notion CRM, X drafts he posts himself, Google Sheets numbers rebuilt each morning and an 8am chief-of-staff report plus an auditor agent.
A student onboarding workflow built in n8n with Gmail, Google Sheets and Google Drive removes the repetitive admin of welcoming new students.
A shared Claude Code prompt builds model.xlsx with Assumptions, Revenue, Costs, P&L, Cash and bear/base/bull Scenario tabs. Every number outside Assumptions is a formula, the agent asks up to 6 questions first and checks that every formula calculates before finishing.
Tired of refreshing the Stripe dashboard, a builder made an n8n workflow: each paid order is duplicate-checked, added as a row in Google Sheets and sent to Telegram. Tested with USD, EUR, HUF, JPY and KWD.
A recruiting workflow in n8n chains a resume agent, a candidate agent and a job-matching agent and writes results to Google Sheets. The builder says it turns about 20 hours of manual work into 2 minutes.
An Amazon seller runs the business from Claude Code connected to MCP servers for the Amazon Selling Partner API, Keepa, Google Sheets, Google Drive, Gmail and Buffer.
A user connected Grok Bot to his X Money account and asked it to create a Google Sheet that tracks and categorizes every transaction.
Built ArtifactSmith, an MCP server that turns agent chat walls into real pages in web, PDF, Word and Excel with six styles.
A finance professional who built models by hand for 13 years now works with Claude directly in Google Sheets. It writes the sheet through code instead of screenshots or CSV round-trips, so he can build models for hours without things breaking.
Replaced Excel tracking with his own dashboard for reporting, lead management and CSV tracking, built with Claude Code, n8n and Supabase.
Typeform leads go to Google Sheets, an AI agent classifies them, hot ones hit Slack and cold ones get monthly nurture emails.
Prompted an AI agent with sample invoices and let it build a workflow that sends invoice data to Google Sheets.
A builder used their AI agents with the ToolJet MCP to build a back office for jobs, bookings, invoices and parts from one prompt in under 40 minutes.
Sygal converts PDF, Word, Excel, images, web pages and even YouTube links into clean Markdown and JSON locally, so documents drop into a prompt or knowledge base with far fewer tokens.
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