shift+enter on tmux not working

[albertilagan]

not really sure if this is a tmux or opencode issue, but when I'm on tmux hitting shift+enter sends the request instead of creating a new line.

I totally nuke my tmux config just to make sure it's related to any of my packages on tmux, didn't work

unbind C-b

set -g prefix C-a
bind C-a send-prefix

bind r source-file ~/.config/tmux/tmux.conf

set-option -g default-terminal "tmux-256color"
set-window-option -g xterm-keys on
set-option -ga terminal-overrides ",xterm-ghostty:XT"

(also have passthrough on before)

My current workaround is this

# tmux config
bind-key -n S-Enter if-shell '[ "#{pane_current_command}" = "opencode" ] || [ "#{window_name}" = "opencode" ]' \
    "send-keys M-Enter" \
    "send-keys S-Enter"

# opencode config
{
  "keybinds": {
    "input_submit": "enter",
    "input_newline": "alt+enter,ctrl+j",

[adamdotdevin]

i just overhauled keybinds completely, check the readme; you can now configure newline to a different key, lmk if that's a solution for you!

[GitMurf]

fyi Windows Terminal + WSL2 + zsh shell + Arch Linux I also had an issue where the default shift + enter does not work (it submits the message to the LLM). But as @adamdottv mentioned, I reset the keymap to be ctrl + enter or ctrl + j (see below) and it works great! For others who may run into the same issue.

[keybinds]
leader = "ctrl+x"
input_newline = "ctrl+j,ctrl+enter"

NOTE: you see I added the leader keybind there because it appears as if you set any keybind, the leader keybind no longer is set by default so you have to explicitly add it. cc @adamdottv

[net]

FWIW shift+enter works for me in tmux and Ghostty.

[aminroosta]

I had the same issue with tmux and ghostty, the following workaround solved it for me.

# ~/.config/ghostty/config:  map shift+enter to ctrl+e
keybind = shift+enter=text:\x05

and

# ~.config/opencode/opencode.json: map ctrl+e to input_submit
{
  "keybinds": {
    "input_submit": "ctrl+e",
    "input_newline": "shift"

[princejoogie]

for kitty users, i added this to my kitty.conf

+ map shift+enter send_text all \x1b[13;2u