Show HN: Juggler – an open-source GUI coding agent, by the creator of JUCE • Hacker News Board

Re: Show HN: Juggler – an open-source GUI coding agent, by the creator of JUCE

#51

Post by mannanj » Tue, Jul 14, 2026, 5:29 PM UTC

Interesting. Just opened it up to use, while I had a codex terminal session running - my first instinct was to want to see my pre-existing open session in the GUI instead and be able to drive it in either spot. Is that something I can do?

Also when I opened a new session (in the Juggler GUI) at my root where all my projects live, my instinct was to navigate to a project directory first or to have it open there. Not sure how to do this, without changing the global setting for my projects root. That's how I think through claude code/codex coding sessions via the terminal wondering if that mental model is wrong.

I asked which skills it could access, and it turns out it couldn't access any of my global skills already - I thought that part would just work since it accesses my codex subscription. is that something you plan to add.

Re: Show HN: Juggler – an open-source GUI coding agent, by the creator of JUCE

#52

Post by vorticalbox » Tue, Jul 14, 2026, 5:31 PM UTC

I always like testing out new things to put into my workflow. the first thing I will say is that its a welcome change to have an app 40 MB rather than over 400

Re: Show HN: Juggler – an open-source GUI coding agent, by the creator of JUCE

#53

Post by solarkraft » Tue, Jul 14, 2026, 5:36 PM UTC

> Because it's a CRDT behind a local web server

I think that’s the secret to stability. I see too many projects that try to embed the harness into their UI. I think that’s completely wrong because it leaves no interface for changing or reasoning about the system.

The harness needs a lot of love and it should be as small and as possible (at least somewhat). I dream of a world in which we have some standard interfaces here, including for the UI.

Re: Show HN: Juggler – an open-source GUI coding agent, by the creator of JUCE

#54

Post by catapart » Tue, Jul 14, 2026, 5:36 PM UTC

Sweet! I was just looking for something like this, this past weekend. Lots of command line stuff, but not much in the way of GUI apps. Excited to check this out! Thanks!

Re: Show HN: Juggler – an open-source GUI coding agent, by the creator of JUCE

#55

Post by julesrms » Tue, Jul 14, 2026, 5:39 PM UTC

solarkraft wrote: post #53

> Because it's a CRDT behind a local web server I think that’s the secret to stability. I see too many projects that try to embed the harness into their UI. I think that’s completely wrong because it leaves no interface for changing or reasoning about the system. The harness needs a lot of love and it should be as small and as possible (at least somewhat). I dream of a world in which we have some standard interfaces…

Totally. I spent a long time on the architecture of this thing, must have redesigned in 10 times to evolve it to this point. It was a really interesting challenge, but seems kind of obvious in hindsight..

Re: Show HN: Juggler – an open-source GUI coding agent, by the creator of JUCE

#56

Post by markasoftware » Tue, Jul 14, 2026, 5:45 PM UTC

Really glad to see an harness other than Pi that seems to be non-vc-backed FOSS and by a competent maintainer

Edit: seems like the remote connection feature may not work...

Re: Show HN: Juggler – an open-source GUI coding agent, by the creator of JUCE

#57

Post by guessmyname » Tue, Jul 14, 2026, 5:47 PM UTC

Please ask your LLM Agent to replace all that JavaScript code with SwiftUI, or at least C++ with native graphic libraries for real native GUI performance.

Re: Show HN: Juggler – an open-source GUI coding agent, by the creator of JUCE

#58

Post by sbloz » Tue, Jul 14, 2026, 5:54 PM UTC

julesrms wrote: post #33

robbomacrae wrote: post #30

This looks really interesting and a unique take on the AI agent orchestration. I think we need a bunch of experiments in this area as it's clear we are entering a new paradigm and the tools for it are lacking. The session tree in particular has merits. I've got my own attempt with OrcaBot (short for orchestration of bots). It's also been a 6 month solo build experiment. I'm not trying to plug.. just that I'm also nec…

TBH I'm not coming from the same angle as all the gas-town fever-dream agent swarming stuff. I'm much more on the hands-on coding side, I tend to do one thing at a time and still do the git commits myself. So that's the UX I'm dogfooding.. However I see all those people out there trying to build these huge agent orchestration schemes, and if juggler's extension system can do that (or could be made to do that with a f…

I'm also on the hands on side. The mistake that I see a lot of people making is "I can build so much now". But that doesn't mean you're building the right things. And if you're hands off you aren't really thinking about what you're trying to build, at least not deeply. I'd love to see tools that embrace optimizing for that.

Re: Show HN: Juggler – an open-source GUI coding agent, by the creator of JUCE

#59

Post by bartvk » Tue, Jul 14, 2026, 5:55 PM UTC

> Wails for windowing (no Electron)

Awesome.

> AGPL

Even more awesome.

Re: Show HN: Juggler – an open-source GUI coding agent, by the creator of JUCE

#60

Post by julesrms » Tue, Jul 14, 2026, 5:55 PM UTC

markasoftware wrote: post #56

Really glad to see an harness other than Pi that seems to be non-vc-backed FOSS and by a competent maintainer Edit: seems like the remote connection feature may not work...

I'll try to live up to the 'competent' bit!