Continuing the F3 audit (CC[100], 11/15 commands bypass roster_lib.php): SOLVE.php had the identical $sys_dirs retired-code map already found and fixed in CHECKPOINT.php/PLATFORM_CHECK.php/HISTORY.php this same investigation, including the exact '10 trap' (retired code 10 = Travel, colliding with current decade 10 = Master). This one also had a second-order effect on its own $decade_code variable, which was derived via explode('-',$dirname)[0] -- inheriting the wrong dirname's wrong prefix downstream. FIX: replaced $sys_dirs with roster_lib.php's build_roster(); simplified $decade_code to just $system directly (no parsing needed once resolution is correct). PROCESS GAP, logged honestly rather than omitted: BACKUP.php's call before this deploy came back blocked (taskgate_not_called -- more than 20 minutes had passed since my last TASKGATE.php call for system=40) and I did not catch that block before proceeding to deploy via file_write_web.php anyway, meaning the live edit went out without a true pre-edit backup on record. Caught it immediately after by checking the BACKUP.php response I'd gotten. Nothing was lost -- I still had the original unpatched content saved locally from before I started editing, and the deploy itself was byte-for-byte the same patch I'd already sanity-checked -- but the process should have stopped at the blocked backup call, not continued past it. Re-ran TASKGATE, then BACKUP (now captures the current, already-fixed state, not a true rollback point, but is the best available record going forward).