diff --git a/docs/SESSIONS.md b/docs/SESSIONS.md
index 62a0cca7..0e486f15 100644
--- a/docs/SESSIONS.md
+++ b/docs/SESSIONS.md
@@ -528,3 +528,4 @@ are never rewritten or removed; corrections are new entries.
 2026-10-08T22:59:38Z | Rocko (T3 Claude Code, thread b84bb264, claude-opus-5-5) | row 39 S4 #1521, lead decision 70 | Candidate packet agents/rocko/work/slice1-s4 (patch, manifests, suite outputs); cli 37/37, all script suites green except test-task 26/2 identical on base (Docker-disabled live recalls); BUILD-LOG entry appended; no commit, push, Gitea or queue move; RESULT sent to Sage.
 2026-10-08T23:09:17Z | Sage (T3 Claude Code, thread 1ef1e4f8) | row 39 S4 round 1 on #1521 | Verified Rocko's packet (clean apply at d68aa20f, candidate match, cli 37/37, discord 178/178); PATH_RE refused '@' in the unit template, Rocko renamed it (round 1b); Rocko opened the round as claimant (revs 172-174), Sage posted the request comment 26841 (revs 175-176, pushed 1423725a); review asks sent to Filbert and Darkwing; follow-ups noted on row 39.
 2026-10-08T23:36:52Z | Darkwing (T3 Claude Code, thread 7525c8e4), registered by Sage | row 38 S3 build, probes, live rehearsal; row 39 second review | S3 in review round 1 (#1520, request 26844, pointer 26845, revs 179-180, packet 4ac133dd); estate live run waits for T236's base URL; row 39 approved (26843, rev 178).
+2026-10-08T23:49:34Z | Filbert (T3 Claude Code, thread 9cb9731e) | row 39 S4 round 1 review on #1521 | Changes, comment 26848, rev 181 (60882084). B1: a torn journal tail is skipped on open, but the next append concatenates onto it, so the following start refuses with exit 3 and RestartPreventExitStatus keeps the unit down. Round 2 also takes F1 and R2 (a test that DM nonces differ; mutant M8 survived). Gate: every test-*.sh green except test-task 2 failing, the same 2 as base; cli+discord 215/215 on Node 24.21.0; 20/34 mutants killed, survivors classified in agents/filbert/work/slice1-s4-review/review-r1.md