Make Claude Code compact itself: a CLAUDE.md rule plus a script that types /compact into its own tmux pane once the turn ends

Claude Code can't run /compact on itself, so this does it from outside. A rule in CLAUDE.md has Claude run compact-self "<what to keep>" as the last thing it does when it finishes a task. The script waits in the background until the turn is over, then types /compact <what to keep> into Claude's own tmux pane and presses Enter.

Needs tmux.

1. Save compact-self as~/.claude/bin/compact-self and make it executable (chmod +x ).
2. Merge settings.json into~/.claude/settings.json . The Stop hook records when a turn ends; the allow rule lets Claude run the script without asking.
3. Add the rule in rule-for-CLAUDE.md to~/.claude/CLAUDE.md .

It won't type into a pane you've scrolled back in. It doesn't check the input line, so if you start typing in that pane just as the turn ends, the two get mixed.