wezterm: Claude Code editing ergonomics (shipped) (flakes-jkwu)

Two wezterm ergonomics tweaks for Claude Code, already shipped in packs/home/gui/linux/wezterm/wezterm.lua. Captured for the record.

1. Ctrl+\ → soft newline in Claude Code

Send Space \ <50ms delay> Enter so CC inserts a continuation line instead of submitting. The delay matters — without it a stray \ is left on the last line.

{ key = '\\', mods = 'CTRL', action = wezterm.action_callback(function(window, pane)
    window:perform_action(act.SendKey { key = 'Space' }, pane)
    window:perform_action(act.SendKey { key = 'Backslash' }, pane)
    wezterm.sleep_ms(50)
    window:perform_action(act.SendKey { key = 'Enter' }, pane)
end)},

2. Don’t let Ctrl+Shift+C clobber the zellij/OSC-52 clipboard

Through wezterm → remote shell → zellij, Ctrl+Shift+C ran CopyTo('Clipboard') which copied the (empty) terminal selection, overwriting what zellij had already put on the system clipboard via OSC 52. Fix: make the binding a callback that only copies when there is a non-empty terminal selection (mirrors kitty’s behavior). Upstreamable.

Status

Both bindings are present in wezterm.lua (lines ~60–74). This bean documents them; no further work unless upstreaming the Ctrl+Shift+C fix.

Todo

• Ctrl+\ soft-newline binding
• Ctrl+Shift+C clipboard-safe binding
• (optional) Upstream the Ctrl+Shift+C selection-guard behavior to wezterm