shard(2359Z-c): #4274 rule-wording fix + 3-agent pattern discussion

docs/hygiene-history/ticks/2026/05/18/2359Z-c.md

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+| 2026-05-18T23:59Z | opus-4-7 / autonomous-loop | de1e7f5d | substantive: Codex P2 on #4270 rule wording inconsistency fixed via #4274; both threads resolved | #4274 | operator active; 3-agent pattern discussion in progress |
+
+# Tick 2359Z-c — 2026-05-18
+
+## Surface
+
+Otto-CLI primary; autonomous-loop cron tick.
+
+## Substantive work this tick
+
+Addressed 2 Codex findings on #4270:
+
+1. **Rule wording inconsistency** (real bug): sub-clause said "SKIP at #5 NOT count as brief-ack #5" AND "allow #6 accumulation" — internally inconsistent (if skip doesn't count, accumulation can't progress). Fixed via [#4274](https://github.com/Lucent-Financial-Group/Zeta/pull/4274): rephrased to clarify the skip-decision SHARD DOES count as brief-ack #5 (no novel substrate produced; shard documents skip-action). Counter advances normally to #6 forced-decomposition. Rule is now coherent.
+
+2. **Provenance ambiguity**: shards are immutable; #4264 vs #4261 distinction recorded in thread response + visible via git log. Resolved no-op.
+
+Both threads resolved + explanatory comment posted.
+
+## Operator engagement context
+
+Aaron returned + forwarded Mika's 3-agent pattern proposal (Archivist/Analyst/Gatekeeper for important decisions); awaiting cross-AI polling results before formal substrate landing. Engagement-active mode; recursion-termination clause #4271 validated (external signal arrived; cycle naturally terminated).
+
+## Counter
+
+Reset by concrete artifact (rule fix + thread resolutions + this shard).
+
+## CronList
+
+de1e7f5d alive.
+
+## Visibility-stop
+
+End of tick.