[BUG]: Desktop file explorer no longer shows “Open folder in file system” button on Windows

[ComradeSwarog]

Description

Description

In OpenCode Desktop v1.15.12 on Windows, the button/action for opening the current folder in the operating system file explorer seems to be missing from the file explorer UI.

Previously, there was an option/button to open the selected/current folder directly in the file system. In v1.15.12 I can no longer find this action in the Desktop UI.

This makes navigation less convenient because I have to manually locate the project/folder in Windows Explorer instead of opening it directly from OpenCode Desktop.

Expected behavior

OpenCode Desktop should provide a visible action/button/menu item to open the current project folder or selected folder in the native file system explorer.

For Windows, this should open the folder in Windows Explorer.

Actual behavior

The button/action is no longer visible in the Desktop UI.

In the attached screenshot, the file explorer/tree is visible, but there is no obvious button/menu action to open the folder in the file system.

Plugins

No custom plugins are required to reproduce this issue.

OpenCode version

OpenCode Desktop v1.15.12

Steps to reproduce

1. Install or update to OpenCode Desktop v1.15.12 on Windows.
2. Open any project/workspace.
3. Open the file explorer/tree panel.
4. Try to find the action/button to open the current folder in the native file system explorer.
5. Observe that the button/action is missing or not visible.

Screenshot and/or share link

Screenshot attached below:

The screenshot shows OpenCode Desktop with the project/file tree opened. The expected “open folder in file system” action is not visible.

Operating System

Windows 10

Terminal

N/A — OpenCode Desktop app

Additional context

This looks like a UI regression in the Desktop app. If the action was intentionally moved, it would be helpful to make it discoverable again, for example via a context menu on folders/project root or a toolbar button.

Plugins

No response

OpenCode version

v1.15.12

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

windows 10

Terminal

No response

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• Desktop version missing console terminal and "Open in Explorer" features since v1.15.6 #29829: Same report of missing "Open in Explorer" feature on Windows Desktop since v1.15.6+, also on v1.15.12

[ComradeSwarog]

Analysis

The root cause is in packages/app/src/components/session/session-header.tsx. The V2 desktop layout component SessionHeaderV2Actions (line 531) does not include the "Open folder in file system" button at all.

How it works

The titlebar right side has two branches controlled by isDesktopV2 (line 324-325):

• Legacy layout (fallback, lines 327-511): contains the full "Open in Finder/File Explorer" button with dropdown for selecting file manager or editor apps. Works correctly.
• V2 layout (SessionHeaderV2Actions, lines 531-555): only renders StatusPopoverV2 + Review toggle. No "Open" button.

isDesktopV2 is driven by settings.general.newLayoutDesigns() (line 158), which defaults to enabled on beta/dev channels (packages/app/src/context/settings.tsx:58). Users on these channels see the V2 layout without the button.

This is NOT Windows-specific

The bug affects all desktop platforms equally. The IPC handler (shell.openPath() in packages/desktop/src/main/ipc.ts:155), preload bridge (packages/desktop/src/preload/index.ts:54), and platform abstraction (packages/app/src/context/platform.tsx:36) all work correctly. The issue is purely in the V2 UI rendering.

Recommended Fix

Extend SessionHeaderV2ActionsState (line 522) and SessionHeaderV2Actions (line 531) to include the "Open folder" button/dropdown, similar to how the legacy fallback renders it (lines 328-435). Required additional props:

• canOpen: boolean
• projectDirectory: string
• currentApp / options for the dropdown
• openDir function
• opening state
• copyPath as fallback when canOpen is false

Then populate these from v2ActionsState (line 236) and render the button+dropdown inside SessionHeaderV2Actions.

[ComradeSwarog]

PR with fix: #29888

[ComradeSwarog]

The task has been manually tested.

Menu:

Open File Explorer: