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claude-code - 💡(How to fix) Fix [Desktop] Allow resizing the divider between split sessions [1 comments, 2 participants]

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anthropics/claude-code#49652•Fetched 2026-04-17 08:35:07
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In the redesigned desktop app, two sessions can be shown side-by-side, but the divider between them appears to be fixed at 50/50 and cannot be dragged. It would be great to make this divider resizable, the same way panes inside a single session are.

Root Cause

In the redesigned desktop app, two sessions can be shown side-by-side, but the divider between them appears to be fixed at 50/50 and cannot be dragged. It would be great to make this divider resizable, the same way panes inside a single session are.

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Preflight Checklist

  • I have searched existing requests and this feature hasn't been requested yet
  • This is a single feature request (not multiple features)

Problem Statement

Summary

In the redesigned desktop app, two sessions can be shown side-by-side, but the divider between them appears to be fixed at 50/50 and cannot be dragged. It would be great to make this divider resizable, the same way panes inside a single session are.

Motivation / Use case

The two sessions usually play different roles — for example:

  • Left: monitoring logs / watching a long-running task
  • Right: active coding and chat

A fixed 50/50 split wastes space on the "passive" side and cramps the "active" side. Being able to drag the divider (e.g. 70/30) would make parallel-session workflows much more practical.

Current behavior

  • Hovering the divider between two sessions does not change the cursor.
  • Dragging has no effect; the split stays at 50/50.
  • Panes within a single session (terminal / chat / editor) resize fine — only the session-level divider is fixed.

Proposed Solution

Expected behavior

  • Hovering the session divider shows a resize cursor.
  • Dragging adjusts the ratio freely (with a sensible minimum width).
  • Ratio is remembered per window / across restarts.

Alternative Solutions

No response

Priority

Medium - Would be very helpful

Feature Category

Performance and speed

Use Case Example

No response

Additional Context

Environment

  • Claude Code Desktop (Windows 11)
  • Version: Claude 1.3109.0 (35cbf6) 2026-04-16T20:32:01.000Z

Additional context

Related to the April 2026 desktop redesign that made in-session panes draggable. This request extends the same behavior to the session-level split.

extent analysis

TL;DR

The session divider in the Claude Code Desktop app should be made resizable by implementing a draggable divider that adjusts the session ratio.

Guidance

  • Review the code changes made for the April 2026 desktop redesign that enabled draggable in-session panes, as this feature request extends the same behavior to the session-level split.
  • Investigate why hovering the session divider does not change the cursor and dragging has no effect, to identify the root cause of the issue.
  • Consider adding event listeners for mouse events (e.g., mousedown, mousemove, mouseup) to the session divider to enable dragging and resizing.
  • Ensure that the resized ratio is persisted across restarts by storing the user's preferred session ratio in the app's settings or preferences.

Example

No code snippet is provided as the issue does not contain sufficient technical details.

Notes

The solution may require modifications to the app's UI components, event handling, and storage mechanisms. Additionally, the implementation should consider sensible minimum width constraints to prevent overly narrow sessions.

Recommendation

Apply a workaround by implementing a custom resizable divider component, as the issue is specific to the session-level split and does not appear to be a known bug with a fixed version available.

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FAQ

Expected behavior

  • Hovering the session divider shows a resize cursor.
  • Dragging adjusts the ratio freely (with a sensible minimum width).
  • Ratio is remembered per window / across restarts.
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