You keep checking that same page out of habit, not because anything is actually happening. Set up an AI assistant to watch it instead: one page, one schedule, one rule, and it only messages you when something actually changes. Ten minutes now buys you back that habit for good.
| Gemini active scheduled actions | Up to 10 at a time |
|---|---|
| ChatGPT task frequency | Capped at about once per hour |
| Claude Cowork cadence options | Hourly, daily, weekly, weekdays, or manual |
| Setup time | About 10 minutes for the first page |
1. Pick one page to watch
Choose a page you check out of duty, not curiosity, like a competitor’s pricing page or a supplier’s stock page. Pick just one. Start with five and you will drown in updates and quit within a week.
2. Turn on scheduled tasks in your assistant
Open your assistant’s settings or plus menu and look for Tasks, Scheduled, or Automations. Gemini allows up to 10 active scheduled actions at a time. ChatGPT tasks are capped at running about once per hour. Claude Cowork lets you pick hourly, daily, weekly, weekdays, or manual. If your assistant doesn’t have this yet, a free automation tool can call the model on a timer instead.
3. Brief it like you’d brief an intern
Tell it exactly what to open, what to compare it against, and what counts as worth telling you. Vague instructions produce vague noise. Use the prompt below and just fill in the page and what you care about.
4. Add the silence rule
Tell it to reply with exactly ‘No change’ when nothing has changed. This one line is what stops a useful tool from becoming a daily annoyance you mute within a week. Without it, you get a message every single day whether or not anything happened.
5. Send the output where you’ll actually see it
Point it at email or a chat message, not the assistant’s own history where it gets buried. It should land the way a colleague’s update would, not something you have to go looking for.
6. Set up your first one today
Open your assistant’s task menu right now and create one for the page you already check by hand. Ten minutes, and that chore is off your plate for good.
A worked example
You’ve been opening a supplier’s stock page every morning just to see if an item is back in stock.
Before
You open the page, scan it, see nothing new, close the tab. Repeat tomorrow.
After
Every weekday at 8am you get nothing, until the day stock changes, when you get one message: ‘1. Stock status changed. 2. Old: Out of stock. New: In stock. 3. Needs attention today: yes.’
Ways to bend it
Instant alert instead of daily digest
If a page can move fast and you need to know right away, check it every few hours instead of once a day. Same silence rule applies: no message until something actually changes.
Weekly check for slow movers
For pages that barely change, like a regulator’s notice board, ask your assistant for a weekly check instead of daily. Claude Cowork supports weekly cadence directly; other assistants can be told to only run on a chosen day.
Weekdays only for work pages
If the page only matters during work hours, like a supplier’s stock feed, set the cadence to weekdays only. You skip the weekend noise and still catch anything before Monday.
When it goes wrong
It messages me every day even when nothing changed
You probably left out the silence rule. Add ‘reply with exactly: No change’ and ‘do not message me on days when nothing changed’ to the instruction.
It sends me a full summary instead of just what changed
Add the line ‘do not summarise the whole page’ and tell it explicitly to compare against yesterday’s version, not describe today’s.
It says it can’t check the page
It’s probably behind a login. Stick to public pages you could open yourself in a browser, like a pricing page or a public notice board.
When not to use this
This is the wrong tool for anything behind a login, anything that needs judgment rather than a plain comparison, or anything genuinely urgent, like a security alert or a payment failure, where waiting for the next scheduled check is too slow. For those, use a real time alert, not a page watcher.
What you can now do
One habitual chore is off your plate, and you have a template for the next ten things you check out of duty. Checking a page regularly stops being something you carry and becomes something you just delegate.
The prompts, copy them whole
Every weekday at 8:00am, open [page URL] and read it. Compare it to the version you saw yesterday. If nothing meaningful has changed, reply with exactly: No change. If something has changed, reply with only: 1. What changed, in one line. 2. The old value and the new value. 3. Whether it needs my attention today (yes or no). Do not summarise the whole page. Do not message me on days when nothing changed. Watching for: [what you care about, e.g. price, a new notice, stock status].
Works only on public pages the assistant can actually open, and only if you keep the ‘reply with exactly: No change’ line in.
Check [page URL] every 3 hours during working hours. Only message me if [what you care about] has changed since your last check. When it changes, send one line: what it was, what it is now, and a link. Stay completely silent otherwise. Never send a 'still the same' update.
ChatGPT tasks are capped at running about once an hour, so asking for a tighter interval than that won’t actually run faster.
Questions people actually ask
Which AI assistants can actually do this?
Any assistant with a scheduled or recurring tasks feature. Through 2026 the mainstream chat assistants added this under a Tasks, Scheduled, or Automations option. If yours doesn’t have it yet, a free automation tool can call the model on a timer instead.
Will it really only message me when something changes?
Only if you keep the ‘reply with exactly: No change’ line in your instruction. That single line is what turns a daily notification into a signal you actually trust.
Is it safe to point an AI assistant at a page?
Stick to public pages you could open yourself in a browser, like a pricing page, a public notice board, or a status page. Don’t hand it anything behind a login.
How often can it actually check the page?
It depends on the assistant. Gemini allows up to 10 active scheduled actions at a time, ChatGPT tasks are capped at running about once per hour, and Claude Cowork lets you choose hourly, daily, weekly, weekdays, or manual.
How long does this take to set up?
About ten minutes for your first page. Once it’s running, you don’t touch it again until something actually changes.
Take this further
Act as a blunt hiring manager who has read ten thousand resumes, not a career coach. I will paste my full resume and the job description I want. Rewrite the whole resume for that role, section by section, in this order: summary, experience, skills, education. Rules: every experience line leads with impact, not duty. Use bracketed placeholders like [8 percent] for any number I did not give you, and list at the end every placeholder I need to replace with a real figure. Keep it to one page of text. Plain formatting only, no tables or columns, so screening software can parse it. After the rewrite, tell me the three weakest claims that need evidence before I send this anywhere. My resume: [paste resume]. The role: [paste job description].
Takeaways
- Pick exactly one page you check out of duty and set up its schedule before adding a second one.
- Add the explicit line ‘reply with exactly: No change’ to your task instruction so silence becomes the default output.
- Point the output at email or chat, not the assistant’s own task history, so the update actually reaches you.
- Test the instruction once by asking it to compare against yesterday’s version rather than summarise the whole page.
- Skip this approach entirely for anything behind a login or anything time sensitive, and use a real time alert instead.
Questions people actually ask
Which AI assistants can watch a webpage on a schedule for me?
Any assistant with a scheduled or recurring tasks feature works. Gemini calls it Scheduled Actions, ChatGPT calls it Tasks, and Claude Cowork has a built in scheduler with hourly, daily, weekly, weekdays, or manual cadence. If your assistant lacks this, a free automation tool can call the model on a timer instead.
Why does my AI assistant message me every single day even when nothing changed on the page?
You likely left out the silence instruction. Add a line telling it to reply with exactly ‘No change’ when nothing has happened, and to only message you on days something actually changed. Without that explicit rule, most assistants default to sending a status update on every scheduled run.
Can I use this to watch a page that needs a login, like an internal dashboard?
No. Stick to public pages you could open yourself in a normal browser, such as a pricing page, a supplier stock page, or a public notice board. Pages behind a login typically fail silently or the assistant will tell you it cannot access the content.
How often can ChatGPT or Gemini actually check a page for changes?
It depends on the assistant. ChatGPT tasks are capped at running about once per hour, so a tighter interval will not run any faster. Gemini allows up to 10 active scheduled actions at a time. Claude Cowork lets you pick hourly, daily, weekly, weekdays, or manual cadence per task.
Is a page watcher the right tool for urgent alerts, like a security or payment issue?
No. Scheduled checks wait for the next run, which is too slow for anything genuinely urgent. Use a real time alert system for security notifications or payment failures, and reserve the scheduled watcher approach for lower stakes, non urgent updates like pricing or stock changes.
Sources
What happens next
Expect the mainstream assistants to keep tightening these scheduling limits and interval floors through the rest of 2026 as usage grows, so check your assistant’s current cap before relying on a tight interval. Watch for assistants adding native change detection or diffing, which would reduce the need to hand craft comparison instructions. Anyone building on this should re-verify frequency and active task limits periodically, since providers have adjusted them before.
