Issue: Agent sidebar opens when hovering over scrollbar — severely disruptive UX

Description

In the current version, simply moving the mouse over the scrollbar area automatically triggers the Agent sidebar to open.

This behavior is extremely easy to trigger unintentionally and significantly degrades the user experience.

Steps to Reproduce

  1. Use a dual-monitor (or multi-monitor) setup

  2. Work normally in the editor on one screen

  3. Move the mouse to the other screen

    (the cursor briefly passes over the scrollbar area of the current window)

  4. Without any click or explicit action

  5. The Agent sidebar opens automatically

Actual Behavior

  • Hovering over the scrollbar triggers the Agent sidebar

  • No explicit user intent is required

  • The sidebar appears frequently and unexpectedly

Expected Behavior

  • The Agent sidebar should not open on hover, especially not on the scrollbar

  • It should only open through explicit user intent, such as:

    • Clicking a button

    • Using a keyboard shortcut

    • A clearly defined interaction zone

Impact

  • Nearly unavoidable for dual-screen users (mouse crossing screens is common)

  • Constant visual interruption and loss of focus

  • Behavior regression compared to previous versions (this did not happen before)

  • Causes interaction fatigue during long development sessions

Suggested Improvements

  • Disable Agent activation on scrollbar hover

  • Restrict activation to click or keyboard shortcut only

  • Provide a user setting to disable hover-based activation

  • Increase the activation threshold to prevent accidental triggers

Additional Notes

  • This issue has a high daily impact on real-world development workflows

  • Strongly recommend treating this as a UX regression or hotfix candidate


If you want, I can also:

  • Rewrite this in a more product-neutral tone

  • Shorten it for internal issue trackers

  • Adapt it specifically for Cursor / IDE feedback channels

Just tell me.

Hey, thanks for the report. This is a known issue, and the team is already working on improving how the Agent sidebar behaves on hover.

Your feedback about a multi-monitor setup is really helpful, I’ll share that extra context with the team.

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