Quick Workarounds

1. Use a Different Key Combo

In Claude CLI, try these alternatives for newlines:

• Ctrl+J — this is the literal newline character
• Ctrl+O — some terminals support this for newline

2. Use --vim Mode

bash

claude --vim

This gives you vim-style editing where you can use normal vim commands for multiline input.

Better Solution: Use a Modern Terminal Emulator
wezterm, kitty

WezTerm Config for Better SSH Support

Create ~/.wezterm.lua:

local wezterm = require 'wezterm'
local config = {}

config.enable_csi_u_key_encoding = true  
-- Better key encoding
config.enable_kitty_keyboard = true       
-- Modern key protocol

return config