The assistant sees your app

When you would want it

An assistant that only reads code has to guess whether a page works. Looking at it - the words on screen, the errors in the console, the requests that failed, a screenshot - turns "it should work" into "I checked, and it works", and it catches the broken image or the button that does nothing before you do.

Where to find it

• All Features → The assistant sees your app
• Check my running app

What you get out of it

• "It works" means the assistant saw it work, not that the code looked right.
• Broken images, 404s and console errors are caught by the assistant before a visitor finds them.
• Phone layouts get checked at a real phone width (390 pixels), not guessed from CSS.
• It tests flows, not just pages: fill the form, press the button, read what came back.
• Models that cannot read images still get the full text report, so this works with any provider.

How to use it, step by step

1. Open a web project - plain HTML files, or a Vite, Next or other framework project - and connect a model in Connect a model.
2. Ask in plain words: "check the signup form works", "look at the pricing page on a phone", or "open the about page". Or type /check in the composer, or run AI: Check My Running App from the command palette.
3. The assistant starts the live preview if it is not running (your framework's dev server, or a plain file server) and waits until it has an address.
4. It loads the page in a browser of its own, clicks and types through it the way you described, and reads what happened: the text on screen, console errors, failed requests, broken images, and anything spilling sideways at phone width.
5. It fixes what it found and looks again to confirm. The latest screenshot it took sits in the conversation under What the assistant saw, with how many problems it found - click it to open that page in the preview.
6. When it opens a page for you, the preview card in the chat and an open preview window both go to that page. You can do the same yourself: click the preview's address, type /about.html and press Enter.

Why this beats the usual way

Most AI editors stop at the code: you run the app, look at it, and paste the error back in. Browser extensions for agents need installing, a separate server, and permission prompts. In Agentfly the assistant already has a browser that opens only your own local addresses and forgets everything when it closes, so checking the page is part of finishing the job rather than a job left for you.

Find it in Universal Search

The assistant sees your app · The assistant · see my app · look at the page · screenshot · does it work · check the page · test in browser · click through · console errors · broken images · 404 · mobile view · phone width · open a page · specific page · live server · browser tool · playwright · view_page · /check