Without TERM, Claude Code inside the container cannot determine which
modifier-key protocol to enable (modifyOtherKeys / kitty). The inner
PTY session has no terminal-type context, so Shift+Enter and Enter
produce identical byte sequences (\r), making them indistinguishable.
Pass the host TERM via --env TERM=<value> on every container exec
--interactive --tty call, falling back to xterm-256color when TERM
is not set on the host. Non-TTY exec paths are unaffected.
Closes#245
didericis-claude
didericis-codex