Ctrl+Z closes/suspends OpenCode instead of undoing text input (Linux)

[bastndev]

Description

Describe the bug
When pressing Ctrl+Z while typing in OpenCode on Linux, the application
closes/suspends instead of undoing the last typed character or action.
Ctrl+Z should behave as "undo" within the text input, not send SIGTSTP
to the process.

To Reproduce

1. Open OpenCode in terminal
2. Start typing any message
3. Press Ctrl+Z to undo
4. OpenCode suspends (fish shows: "Job X, 'opencode' has stopped")

Expected behavior
Ctrl+Z should undo the last typed text, similar to how it works in
other terminal applications (like vim, nano, etc.)

Screenshot

Environment

• OS: Zorin OS 18 (Linux)
• Shell: fish
• Install method: curl -fsSL https://opencode.ai/install | bash
• OpenCode version: 1.14.28

Plugins

No response

OpenCode version

1.14.28

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

Zorin os 18

Terminal

fish

[github-actions]

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

• [FEATURE]:Ctrl+Z cannot undo input messages #19256: Ctrl+Z cannot undo input messages (same core request)
• [BUG] input_undo and input_redo hotkeys do not work #13787: input_undo and input_redo hotkeys do not work (same undo functionality)
• Plain-text paste is not undoable via Ctrl+Z in prompt editor #13350: Plain-text paste is not undoable via Ctrl+Z in prompt editor (same behavior)
• ctrl+Z -> go to background #584: ctrl+Z -> go to background (same suspend-instead-of-undo behavior)
• OpenTUI: ctrl-z background controls are broken #3737: OpenTUI: ctrl-z background controls are broken (same suspend behavior)
• BUG(tui): Ctrl+Z (terminal_suspend) broken on Windows -- SIGTSTP is not a valid signal #19349: BUG(tui): Ctrl+Z (terminal_suspend) broken on Windows (same SIGTSTP/suspend issue)

For keybind-related issues, please also check our pinned keybinds documentation: #4997

[simbesh]

same, (arch + zsh)

[bastndev]

@simbesh Install this is extension (solution)

[BLMgithub]

solution I've found: create a tui.json in ~/.config/opencode/ and add the config below
I use fedora + bash

{
  "$schema": "https://opencode.ai/tui.json",
  "keybinds": {
    "terminal_suspend": "none",
    "input_undo": "ctrl+z,ctrl+-,super+z"
  }
}

[simbesh]

@BLMgithub thanks this works great, combined with built in ctrl + w for word deleting this is solved for me

[Wegerich]

@BLMgithub thank you so much for sharing this. It has been driving me INSANE. Whoever had the idea to use the keybind that is internationally recognised as "undo a mistake I just made" to activate "unrecoverably interrupt the session and permanently destroy the contents" has a twisted sense of humour.

I found that it did not work inside a .config folder and I had to have it in the same folder I am working from in VS Code. No idea why, but might be helpful for others struggling with this.

[Karvy-Singh]

Hey Everyone,

I made a small wrapper for opencode called opencodezy, this wrapper runs opencode inside a child PTY and translates:

Ctrl+Z -> Ctrl+- (undo)

Ctrl+Y -> Ctrl+. (redo)

One can use ctrl+z as undo without it suspending the session.
Everything else is forwarded normally.

Repo: https://github.com/Karvy-Singh/opencodezy

Open to suggestions, improvements, bug reports, or any shortcomings you notice.