Real use caseWe have not tested this ourselves

Control your TV by chatting with an agent that never leaves your home network

The poster runs n8n on his own machine and built an agent he chats with to control his Roku TV. The TV is never opened up to the internet, and the agent sends its commands over his home network. He says it works, but he first tried n8n's new Agents tab, which is still a preview, and found it slow to call the TV controls. His fix is to use the AI Agent step inside a normal workflow instead.

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Where this comes from

Original post by gwashark on n8n Community, Oct 15, 2026. We rewrote it in our own words. The result is what the poster reports.

Read the original

Copy-paste setup

You control one Roku TV on my home network. You may only use these actions: power on, power off, volume up, volume down, mute, go home and open an app by name. If I ask for anything else, say you can't do that. Before opening an app, tell me which app you picked. Reply in one short sentence.

Our own instructions for the AI Agent step, written from what the source describes. You also need n8n running on your home network and a step that sends the command to the TV. We have not tested it yet. Text in [BRACKETS] is what you replace.

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Turn supplier invoice emails into a spreadsheet, with the sums checked before anything is saved

A consultant who builds workflows for small UK businesses shared a free n8n template. It only watches one Gmail label for supplier invoices, has an AI model read each PDF into fixed fields like supplier, dates, net, VAT and total, then checks the math in plain code: net plus VAT has to match the total and the line items have to add up. Invoices that pass go into a Google Sheet, and anything that fails lands on an Exceptions tab with the reason, so a person takes a look. She notes it can't read scanned invoices and doesn't catch duplicates yet.

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Setup to copy
jessymariau on n8n Community · Oct 19, 2026