With Agent chat opened in editor tab mode (chat as an editor tab/group next to the code editor), clicking the vertical boundary between the editor area and the Agent chat unexpectedly widens the left Explorer / primary sidebar, instead of only adjusting the editor↔chat split.
This only happens when chat is in editor-tab mode, not when chats are in legacy stacked mode.
Steps to Reproduce
Open Agent chat in editor tab mode (chat as an editor tab/group next to the code editor).
Keep the Explorer visible on the left (primary sidebar).
Manually shrink the left Explorer to a narrow width.
Click the vertical boundary between the editor area and the Agent chat, do not intentionally drag the sidebar edge.
Observe the left Explorer jump to a larger width.
Expected Behavior
Clicking the editor↔chat boundary should only resize the editor↔chat split. It should not change the Explorer / primary sidebar width.
Hey, thanks for the detailed report and steps. We can reproduce this and we’re tracking it.
One quick clarification. From your description, it sounds like the Explorer width resets only when you double-click, or do two quick clicks, on the editor to chat divider. That triggers a sash reset that redistributes width across all panels in the row, including Explorer. A single click without dragging shouldn’t do that.
Can you confirm if it happens from a single click, or only from a double-click or two quick clicks? If you can record a short screencast, that’d be ideal.
For now, the workaround is to avoid the reset on that divider and drag it manually instead, or temporarily switch chat back to legacy stacked mode where this doesn’t happen.
I confirm that it happens only when double click on the sash/boundary. Single click won’t trigger the width reset. Please see attached screen recording for a demo of the behavior.
Thanks for confirming and recording the video, that’s exactly what we needed to verify. I can see the screencast preview showing a double-click on the divider.
So it’s clear what’s happening: a double-click on the editor chat boundary in editor-tab mode triggers a split reset, which redistributes width across all panels in that row, including Explorer. As you noticed, a single click doesn’t do this. We’re tracking it.
For now, as a workaround: don’t use reset on that divider, drag it manually instead, or temporarily switch chat back to legacy stacked mode, where this doesn’t happen.
I can’t share a timeline yet, but I’ll post an update here when I have one.