A hard link swapped in for ~/.claude would have had root chown another account's file; fstat on the descriptor now refuses a second link, a fifo or an unexpected kind before anything is changed (hq ADR 0266, the re-review). The judge also finds polkit rules for every account, a runtime's API on TCP, setgid-to-root programs whoever owns them, setuid programs on every suid filesystem, and unprotected links; the rest is listed as not judged.