Subagent support as nested threads

[ratulsarna]

Add support for codex subagents and render them as nested threads in the sidebar.
Subagents would ideally be independent chats that can be interacted with outside of the parent that spawned them.
This feature is supported by the codex app server.

Link to the commit in my fork: ratulsarna@4ae6de4

[ratulsarna]

Let me know if I could raise a PR for this.

[BleedingDev]

Do you support max_depth settings, e.g. when subagents can spawn more subagents?

BTW Would love this! ❤️

[ratulsarna]

hey @BleedingDev , my workflow currently doesn't need more than 1 depth so didn't build for it. Can add it as a separate PR if this gets merged or if Theo or Julius build their solution, we can request them or submit a PR.

[BleedingDev]

I can help as well. :) Thanks for clarification.

[maria-rcks]

like this idea, i think it can be paired with #915 and add a nested "review" thread (either with a little review badge or tag)

[jeroenev]

This would really improve the visibility into subagent activity.
Currently, OpenCode is the only thing that really does this well (easily navigating between different subagent threads)
But that is a CLI

[0xpaperhead]

I created this exact thing in my fork, still testing, will push soon.