Show HN: PageAgent, A GUI agent that lives inside your web app

Re:Show HN: PageAgent, A GUI agent that lives inside your we... by simon_luv_pho on Thursday March 05, 2026 @12:07PM (#47264208)

This is highly experimental right now, but here are some quick links for anyone wanting to dig deeper:

- GitHub: https://github.com/alibaba/page-agent - Live Demo (No sign-up): https://alibaba.github.io/page-agent/ (you can drag the bookmarklet from here to try it on other sites) - Browser Extension: https://chromewebstore.google.com/detail/page-agent-ext/akld...

I'd be really interested in feedback on the security model of client-side agents giving extension-bridge access, and taking questions on the implementation!

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by jadbox on Thursday March 05, 2026 @05:34PM (#47268212)

I tried setting the LLM to "http://0.0.0.0:8080" and the extension crashed and now continues to crash at startup.

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by simon_luv_pho on Friday March 06, 2026 @12:30AM (#47271240)

Is http://0.0.0.0:8080 a OpenAI compatible API?

Even it’s not, it’s not supposed to crash on startup. Can you post some screenshots and details on GitHub issues? I’m looking into this.

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by netsharc on Friday March 06, 2026 @07:06PM (#47282798)

Hah, wow. I hope this is an LLM response, otherwise, what a huge blindspot for a "developer"...

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by koakuma-chan on Thursday March 05, 2026 @11:08PM (#47270761)

I don't get it. It's just docs. I don't see anything. Even the video in your GitHub readme doesn't work in my browser.

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by simon_luv_pho on Friday March 06, 2026 @12:33AM (#47271261)

It sounds like a network issue or browser compatibility issue. Can you please add an issue on GitHub so I can look into this.

I mean, not even the readme video?

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by koakuma-chan on Friday March 06, 2026 @12:56AM (#47271399)

Your readme video is https://github.com/user-attachments/assets/11aed429-b69c-49d...

That gives me 404

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by simon_luv_pho on Friday March 06, 2026 @01:18AM (#47271556)

Confirmed. Have to fix that asap. About other issues. Can you see the homepage? What’s the browser version you use?

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by koakuma-chan on Friday March 06, 2026 @04:17AM (#47272768)

https://imgur.com/a/eEQtWQp

I see the homepage but no chat or anything else that could be an agent.

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by simon_luv_pho on Friday March 06, 2026 @05:33AM (#47273238)

Does the "run" button work?

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by koakuma-chan on Friday March 06, 2026 @05:40AM (#47273283)

No, it doesn't. I get this error in console

Uncaught (in promise) Error: WebGL2 is required but not available. setupGL https://alibaba.github.io/page-agent/assets/SimulatorMask-B8... K https://alibaba.github.io/page-agent/assets/SimulatorMask-B8... <anonymous> https://alibaba.github.io/page-agent/assets/SimulatorMask-B8... nt https://alibaba.github.io/page-agent/assets/SimulatorMask-B8... maskReady https://alibaba.github.io/page-agent/assets/PageAgent-oX13Jj...

Because I have WebGL disabled.

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by simon_luv_pho on Friday March 06, 2026 @06:41AM (#47273770)

I see. The visual effect requires the browser to support webgl2.

The core functionality should not crash because the visual effect crashed. Not a good practice. I will fix that asap.

Thanks for noticing. Btw the video should work now.

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by koakuma-chan on Friday March 06, 2026 @06:14PM (#47282372)

Yes it works, nice effects.

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by Terretta on Tuesday March 10, 2026 @01:19PM (#47326157)

on chrome, the extension should be limited to a defined tab group

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by simon_luv_pho on Tuesday March 10, 2026 @03:30PM (#47327783)

Currently, the extension only has access to the active tab when the task starts (configurable) and any new tabs it opens — all automatically placed into a dedicated tab group. It won’t touch other existing tabs.

Are you looking for something like scoping the agent to a predefined tab group?

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Re:Show HN: PageAgent, A GUI agent that lives inside your we... by aethorn on Friday March 13, 2026 @08:23AM (#47363487)

Scoping to a dedicated tab group is a smart approach for sandboxing. The activeTab permission model already limits access nicely, but combining it with tab groups adds a visible boundary that users can actually see and trust. Would be great if Chrome's extensions API gave more granular tab group controls natively.

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