Assuming you aren't using windows terminal: launch claude code and run `/terminal-setup` -- that will enable shift+enter

If you're on Windows and using vscode, add thiss to keybinds.json

[ { "key": "shift+enter", "command": "workbench.action.terminal.sendSequence", "args": { "text": "\u001b\n" }, "when": "terminalFocus" }, ]

It will allow you to get new lines without any strange output.

You can type Option+Enter. A more standard Shift+Enter would have been better but until then that's the best we have

Early on in claude, I feel like it installed some terminal thing that allowed me to do Shift+Enter directly in the prompt, but I don't remember if that was CC that did it.

So I've been able to shift enter. I'm using iTerm2 and zsh with CC (if that's relevant)

Have you tried Ctrl+Enter?

codex has control-J

others say here that option/alt-enter may work? not sure why shift-enter couldn't though.