{
  "scope": "Cleanup of 19 positively identified orphaned device helpers left by prior private-prefix tests, under the shared lock; not gameplay evidence.",
  "candidates": 19,
  "term_sent": 19,
  "kill_sent": 19,
  "idle_verified": true,
  "other_processes_targeted": false,
  "method": "Exact private prefix, actual installed Proton executable+inode, fixed Windows device argv, same UID, adopted user-systemd parent, PID/start revalidation and pidfd signals. Full census before each signal.",
  "source": "tools/private_prefix_cleanup.py",
  "tests": "14 fake-process/pidfd tests passed.",
  "historical_limit": "Earlier strict-byte WINEPREFIX comparisons missed Proton pfx/; previous empty-prefix cleanup claims are not reliable. Original logs remain unchanged."
}