`prompt_stash` keybind is displayed but not dispatched

Description

prompt_stash can be configured to Ctrl-S in ~/.config/opencode/tui.json. OpenCode correctly loads the binding and displays in commands window (Ctrl-P):

Stash prompt                                ctrl - s

However, pressing Ctrl-S while a prompt is written does nothing.

Though the same action DOES work as Ctrl-P → Stash prompt, so the command itself functions and the configured shortcut is recognized.

Ctrl-S works in Claude Code in the same terminal, so the terminal is capable of sending the key event.

Plugins

none, clean new install

OpenCode version

1.18.16

Steps to reproduce

1. Create ~/.config/opencode/tui.json:

   {
     "$schema": "https://opencode.ai/tui.json",
     "keybinds": {
       "prompt_stash": "ctrl+s"
     }
   }
   

2. Restart OpenCode.
3. Type text into the prompt.
4. Press Ctrl-S.

Screenshot and/or share link

https://opncd.ai/share/5bsf06D0

Operating System

Windows 11

Terminal

Windows Terminal