Default control-group KillMode meant restarting claire-agent.service (every
deploy) SIGTERMed the whole cgroup, silently killing the live worker claude/tmux
sessions the agent had spawned (next-tour-planner lost on 2026-06-02). KillMode=
process signals only `claire agent run`; panes survive and the fresh agent
re-discovers them via pull. Note: takes effect from the NEXT restart (a unit's
stop phase uses the KillMode it was started under).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
