shard(2239Z): pre-empt at #3 — 5 Codex threads resolved across #4218 + #4221

docs/hygiene-history/ticks/2026/05/18/2239Z.md

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+| 2026-05-18T22:39Z | opus-4-7 / autonomous-loop | de1e7f5d | pre-empt at #3 — resolved 5 unresolved Codex threads across #4218 + #4221 (fixes + stale-but-self-healing) | -- | both PRs should unblock + merge naturally |
+
+# Tick 2239Z — 2026-05-18
+
+## Surface
+
+Otto-CLI primary; autonomous-loop cron tick.
+
+## Refresh
+
+- `gh api rate_limit`: graphql 4954 (Normal tier, just refreshed)
+- `git ls-remote origin main`: `f658a6d`
+- #4221 (2153Z-c): BLOCKED with 2 unresolved Codex threads → resolved this tick (stale-but-self-healing per cross-PR sibling)
+- #4218 (2142Z): BLOCKED with 3 unresolved Codex threads → fix-commit pushed + threads resolved this tick
+
+## Substantive work this tick (pre-empt at brief-ack #3)
+
+**Pre-empt action**: per `.claude/rules/blocked-green-ci-investigate-threads.md` — when poll reports BLOCKED with unresolved threads, investigate threads FIRST. Last tick's brief-ack-#2 missed this; this tick's refresh surfaced 5 real Codex P1/P2 findings.
+
+**#4218 (2142Z shard) — 3 findings addressed via [fix commit `2272da13`](https://github.com/Lucent-Financial-Group/Zeta/commit/2272da13)**:
+
+1. **Pipe-row first line missing**: shard predated my TEMPLATE-format adoption; added 6-column header per `check-tick-history-shard-schema.ts`
+2. **Stale xref to `2115Z.md:63`**: reframed as referring to peer Otto-CLI #4215 batch in-flight at write-time (not implying on-main file pointer)
+3. **Hypothetical `shard-template.ts` referenced as real**: reframed as proposed-not-yet-built; added note that subsequent ticks landed markdown TEMPLATE via #4220 instead of TS generator (preserves substrate trajectory without dead reference)
+
+Threads resolved + explanatory comment posted on #4218.
+
+**#4221 (2153Z-c shard) — 2 threads** (same Codex P1/P2 finding twice on same line): stale-but-self-healing per [`blocked-green-ci-investigate-threads.md` "Verify-also-on-stale-but-fresh-looking findings"](../../../../../../.claude/rules/blocked-green-ci-investigate-threads.md) — the link to `2142Z.md` resolves once #4218 lands. Threads resolved no-op + explanatory comment posted.
+
+## Counter
+
+Reset by concrete artifact (5 thread resolutions + 1 fix commit + 2 explanatory comments + this shard).
+
+## CronList
+
+de1e7f5d sentinel alive (`* * * * *` recurring; `<<autonomous-loop>>`).
+
+## Visibility-stop
+
+End of tick.