rdmbair15m5-changelog-20260914-1212-tyrell-r10-short-gate-pass
Tyrell Build 20 R10 passed its short physical-footprint gate on this designated canary while Time Machine remained actively copying; the canary stays isolated for the long gates.
Scope and verification
- Host:
rdmbair15m5only; no additional fleet host changed. - Exact Build 20 daemon PID/start/path and exact daemon/app hashes remained unchanged.
- Guard and caffeinate parentage, both sleep assertions, AC/open state, both status planes, all permission samples, additive database integrity, libproc descriptor evidence, and two TCP sockets remained healthy.
- The guard receipt and independent recomputation matched across 31 post-warmup samples over 1,800.274337 seconds.
- Physical endpoint was 58.594986 MiB; delta -0.035412 MiB/min; regression slope -0.009733 MiB/min; descriptor range 25โ27; maximum gap 60.046557 seconds; zero endpoint failures or 503 responses.
- R10 exceeded R9's prior lsof failure interval during the
still-active backup, validating guard v1.5's mount-independent libproc
replacement and resolving
ISSUE-20260914-09.
Evidence and recovery
- Canonical receipt:
/Users/richh/dev/_handoff/tyrell-build20-memory-20260912/canary-r10-short-gate-20260914-1205/README.md. - Receipt SHA-256:
e73c2ce894f95f58495dd6e5dbdb00f9e9bbd0facc3640ec8c010438cc6002ca. - Exact Build 15 daemon and Build 17 app rollback payload remains complete.
- Never restore the pinned database over the additive live database.
- R10 is not release-accepted; six-hour, fixed 24-hour, repeat-inventory, CPU, app, and reboot gates remain pending, with no fleet expansion authorized.