Why your AI agent stops when your laptop closes, and how to fix it
Most AI agents run on your own computer, so they stop when it sleeps, often with no error. What it takes to keep one working all night.
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Your AI agent stops when your laptop closes because it runs on your laptop. When the computer sleeps or the app closes, the work stops, and often nothing tells you. To keep it working, it needs a computer that stays on. With HostNest, a team of Claude agents, your agents live on their own private server, so they keep working with your laptop closed, within your Claude limits.
This guide is for anyone who set up a morning summary or a nightly job and found it hadn't run.
Why does it stop?
Because it runs where you started it. An app on your laptop can only work while the laptop is awake and the app is open.
One small team found this out with their morning briefing. Their job "only runs while the app is open on the laptop, otherwise it catches up the next time it starts". The result: "Between October 7 and 15 we have a briefing for three of seven weekdays".
Three things stop it most often:
- The laptop goes to sleep. The lid closes, or it sleeps after a few minutes.
- The app is closed. Many apps only run their jobs while their window is open.
- You sign out or restart. The job doesn't always come back on its own.
How do you know a job didn't run?
Often you don't, because a job that never starts can't send an error. One person who lets an agent run his channels overnight put it plainly: a task set for 3:15 am "just never ran. Zero runs, no error".
Two habits catch it:
- Ask for a message every time, even when there's nothing to say. "If nothing changed, send one line: nothing new today." A missing message is then your sign.
- Check the time it arrived. If the 7:00 summary came at 10:15, it waited for your laptop to wake up.
What does it take to keep an agent running?
A computer that stays on, a way to start the job on time, and someone to keep it all updated. There are three ways to get that:
- Have it set up for you: HostNest. Your agents live on their own server, which stays on. You ask in Telegram, and the job is set up there. More on this below.
- Leave a computer on. Some people buy a small computer just to keep an agent running day and night. You then look after it yourself: power, updates and restarts.
- Rent a server and run it yourself. You set up the agent, a schedule and a way to see each run. Our guides on giving an agent a weekly job and keeping an always-on agent from breaking on an update cover the details.
Most owners want the work done, not a new job looking after a computer. As one owner put it: "I have a business to run, and I’m not going to become an expert anytime soon".
How does HostNest keep your agents working?
With HostNest, a team of Claude agents, each agent lives on a private server of your own in the EU. Your laptop can be closed, off or out of battery. Your agents keep going.
- You ask, in plain words. "Every weekday at 7, send me a summary of my day." Your agent sets it up as a job on its own server.
- The job stays. It survives restarts and updates, so it's still there next week.
- The results come to you. They arrive in your Telegram chat, from that agent.
- The upkeep is handled. Updates install automatically between 3 and 5 am server time, and a failed update rolls back on its own. The server is backed up daily. If the Telegram connection drops, a watchdog restarts it within about a minute.
Your agents still check with you before anything goes out or costs money, unless you tell them they don't need to. Signup takes about 10 minutes, and our guide on how to get a personal AI agent walks through it. Signup starts at hostnest.ai.
What's a good first job to run overnight?
One that saves you time every morning and can't hurt anyone if it's late. Some to start with:
- Tomorrow's plan. Your calls, your deadlines, and what needs you first.
- Receipts matched to your spreadsheet. Send photos during the day; it files them at night.
- Urgent emails flagged. Once you've connected your email, a short list of what can't wait.
- A research report. "Check these three competitors' prices and tell me what changed."
- Posts drafted. A few drafts from your notes, ready for you to check in the morning.
Start with one. When it has arrived on time for a week, add the next.
What happens when your Claude limit runs out?
Your agent waits until it comes back. Your agents think with Claude, on your own paid Claude plan, and every plan has limits. When one runs out, the agent pauses, and when the limit comes back, it carries on with what came in meanwhile. So a team works all night within your Claude limits, and a long job may finish later on a busy day.
What does it cost?
With HostNest, there's a 7-day free trial, then one subscription for the whole team, server included. You also need your own paid Claude plan (Pro, Max, Ultra or Team), paid to Anthropic.
If you keep a computer on yourself, you pay for the computer and its power, and the looking-after is your time. If you rent a server, you pay for the server, and the setup and updates are your time.
Which way suits you?
- You want it running tonight, with nothing to look after: HostNest.
- You already have a spare computer and like to tinker: leave it on, and check each morning that the job ran.
- You want to run every part yourself: a rented server with a scheduler, using the guides linked above.
A checklist
- Decide where the agent will live: your laptop, a computer you leave on, or a server.
- If it's your laptop, expect it to stop when the lid closes.
- Ask for a message every time, even "nothing new today".
- Check the time each result arrives.
- Keep your Claude plan in mind: a long job may wait for your limit to come back.
- For work that must happen every day, put it on a computer that stays on.