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Cannot switch between build and plan modes in new UI (v1.18.1, v1.18.3) #37430
Description
Description
In the new UI of OpenCode v1.18.1 and v1.18.3, the build/plan mode toggle button is missing. There is no visible entry point in the new UI to switch between build and plan modes, so the user has no way to switch once the session starts.
In earlier versions the toggle was clearly available in the UI, but the new UI hides it completely. I could not find any shortcut, slash command, or menu item that switches between the two modes either.
Plugins
None
OpenCode version
v1.18.1 and v1.18.3
Steps to reproduce
- Install or update OpenCode to v1.18.1 (or v1.18.3) on Windows.
- Run opencode in any project directory.
- The new UI opens. Look for the build/plan mode toggle.
- Expected: A button, shortcut, or command that switches between build and plan modes, as in previous versions.
- Actual: The toggle is not present anywhere in the new UI. No keyboard shortcut or slash command appears to perform the switch either.
Screenshot and/or share link
Will attach a screenshot of the new UI showing the missing toggle.
Operating System
windows 11
Terminal
Windows Terminal
Reacted by Jarosław Bagnicki, JamesNewberyUK, Pedro Mézquita, leonardobringashello-oss and Mikhail
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github-actions commentedon Jul 17, 2026
This issue might be a duplicate of existing issues. Please check:
If your issue is the same, please add a thumbs-up reaction to the existing issue so maintainers can track it more effectively.
SiXuManYan commentedon Jul 17, 2026
One more thing: could the "build/plan" mode toggle button be retained in the new UI?
This would avoid the current indirect process of switching to the old UI, changing the mode, and then switching back to the new UI.
ars-celare commentedon Jul 17, 2026
I've found the problem.
The new UI is shit!
There you go. Solved it for ya.
If it's any use, I can't replicate.
Hey, are you serious, is there a way to switch to the old UI 😍? I'd love just to be able to get on with my work right now.
WXY8888 commentedon Jul 17, 2026
ahmetb commentedon Jul 17, 2026
Not sure why but this setting was turned off by default for me.
SiXuManYan commentedon Jul 21, 2026
@WXY8888 谢谢大佬，解决了我的问题。
@ahmetb Thanks for the advice; it solved my problem.
Enable "Show agent" to display the toggle buttons for "plan" and "build" modes.
otegamike commentedon Sep 27, 2026
I can't find the toggle for build and plan mode. I'm using opencode serve(web version) in from my laptop to my phone. I can’t even find the settings panel.
simonklee commentedon Sep 27, 2026
Web version, so not desktop or tui?