Show open-panel indicator icons per thread in the app sidebar

What variant of Codex are you using?

App

What feature would you like to see?

In the desktop app’s thread sidebar, it would be nice to show small icons beside each thread indicating which panels it currently has open: Review, Terminal, Browser, Files, and Side chat.

Problem

When working across multiple threads, there is currently no way to tell which thread contains a terminal, browser, review, or other open panel without opening each thread individually. This makes it very easy to lose track of what is happening where.

Showing something like this in the sidebar would make threads easier to identify and improve UX when switching between parallel work:

Proposed minimal behavior

• Show an icon for each panel currently open in a thread.
• Use a stable order matching the panel menu: Review, Terminal, Browser, Files, Side chat.
• Place the icons on the right side of the thread row as secondary metadata.
• Keep the existing loading indicator as the outermost-right element.
• Update the icons as panels are opened or closed.
• Threads without open panels should remain unchanged.

Display-only indicators would be useful on their own. Optionally, clicking an icon could open or focus that panel, but interactivity should not be required for the initial feature.

Start by locating the desktop app’s thread sidebar and the state used to track open Review, Terminal, Browser, Files, and Side chat panels. Confirm how the existing loading indicator is rendered, then show panel icons in the specified stable order and update them as panels open or close. Verify that threads without open panels remain unchanged.