Running UNDO command deletes a file that was just read

Description

OK, this is a bit hard to explain, but hear me out. Running a /undo command deletes a file under very specific circumstances. Seems like strange /undo logic.

I asked LLM to read some file that I downloaded, which failed because I forgot to move it from ~/Downloads into my current working directory. OK I think, no big deal, I move the file over, run /undo in OpenCode and run the prompt again - but it fails again saying. So I got very confused and indeed the file vanished.

It took me a while to figure out what is going on, but it seems to be easily reproducible and reliable bug.

Plugins

None

OpenCode version

1.18.18

Steps to reproduce

• ask LLM to read a non-existing file (it fails obviously)
• create the file
• run /undo so that you can re-run the prompt
• the file is suddenly gone because of the /undo command

Screenshot and/or share link

No response

Operating System

ArchLinux

Terminal

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