Build your own AI agent, safely, in Ultron

You can build a real AI agent that books tables, fills forms, and runs weekly research for you, and you can do it safely inside Ultron without ever

You can build a real AI agent that books tables, fills forms, and runs weekly research for you, and you can do it safely inside Ultron without ever handing your machine to a sketchy open-source tool.

AI agents have gotten good enough to do real-world tasks for you, book a table, fill a form, compare prices, run a weekly research job. The problem is the popular way to get one is a sketchy open-source tool that runs with full access to your computer, and earlier in 2026 tens of thousands of those got left exposed and leaked people's passwords. You do not need that risk to get the upside.

You can do all of it inside Ultron, safely. Ultron drives your own browser, does the clicking and typing for you, and pauses before anything sensitive like confirming or paying. Nothing happens behind your back. Below is the safe setup, the starter prompt, and three more tasks to grow into once you trust it.

The safe setup

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The mega prompt

With browser control on and you logged in to OpenTable, paste this into Ultron
Using Ultron, go to OpenTable and book me a table for 2 this Friday at 7pm at [restaurant name]. If that exact time isn't available, show me the closest options and let me pick. Fill in my details, but stop and show me the full booking before you confirm anything. Don't complete the reservation until I say go.

3 bonus prompts to run next

Once the dinner booking feels easy, these stretch into real time-savers. Same setup, just stay logged in to the right sites.

3 bonus prompts to run next3 prompts
1

Price-compare and build a cart

Using Ultron, I need [product, e.g. a specific pair of running shoes in my size]. Check it across [site A], [site B], and [site C], compare the total price including shipping, tell me which is cheapest and whether it's in stock, then add the best option to the cart. Stop before checkout and show me the cart so I can review it. Do not pay or place the order.

2

Fill this form for me

Using Ultron, open [form URL] and fill it out using these details: [paste the info, e.g. name, email, answers]. Work through every field, flag anything you're unsure about instead of guessing, and stop and show me the completed form before you submit. Wait for my okay to hit send.

3

Weekly scheduled research

Set up a weekly task: every Monday morning, search the web for the latest news, tools, and notable updates in [my niche], pull the 5 most relevant items, summarise each in two lines with the link, and write it up as a short brief I can read in under five minutes. Save it to [my doc or page] and flag the single most important thing at the top.

How to get the most out of it

  • Start tiny this weekend. Book one dinner. Watching Ultron fill the form and pause before confirming is what makes you trust it, and once you trust it, you stop doing your own busywork fast.

  • Be specific so it doesn't guess. "Book a table" leaves too much open. Give it the size, day, time, and place, and tell it what to do if your first choice isn't available, so it asks you instead of picking for you.

  • Keep the pause on for anything money or personal. The stop-before-sensitive-actions behaviour is your seatbelt. Don't tell it to "just confirm everything," especially on purchases, payments, or anything you can't undo. Review, then approve.

  • Brand new? Use it for read-and-fill tasks first (looking things up, drafting a form) before letting it transact. Power user? Chain steps in one task (research, then fill, then summarise) and kick off the long ones from your phone while your computer works at home.

Why Ultron, not a sketchy open-source tool

The popular open-source agent tools are real, but they run with full access to your computer, and in 2026 a large number of instances were left exposed and leaked users' credentials. Ultron is first-party, works inside your own logged-in browser, and pauses before risky actions by default. For everyday tasks, you get the agent upside without handing your whole machine to something unvetted. That trade is the entire point.

Watch your agent run

crescendo.51ultron.com/kits/observability
Once your agent is running, this is the panel you watch it from.

See it in action

An agent, not a chatbot - files, commands, memory and tools.

That's the whole thing, working.

Run this on autopilot.

Everything in this guide becomes an agent inside Ultron: set it up once, keep it running. You review, it executes.

Free to start

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