shard(2158Z): brief-ack #1 named-dep

docs/hygiene-history/ticks/2026/05/18/2158Z.md

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+| 2026-05-18T21:58Z | opus-4-7 / autonomous-loop | de1e7f5d | brief-ack #1 named-dep #4221 + #4218 + #4211 CI wait; #4220 TEMPLATE.md merged; substrate-debt paydown not mine to touch | -- | counter at #1 |
+
+# Tick 2158Z — 2026-05-18
+
+## Surface
+
+Otto-CLI primary; autonomous-loop cron tick.
+
+## Refresh
+
+- `gh api rate_limit`: graphql 4284 (Normal tier), reset in 35 min
+- `git ls-remote origin main`: `b2dee65`
+- #4220 (tick-shard TEMPLATE.md): MERGED ✓ at 21:56:32Z
+- #4216 (substrate-debt finding shard): MERGED ✓ at 21:41:04Z
+- #4221 (2153Z-c shard, mine): OPEN MERGEABLE, CI in progress
+- #4218 (2142Z shard, mine): OPEN UNKNOWN, CI in progress
+- #4211 (2120Z shard, mine): OPEN UNKNOWN, CI in progress
+
+## Counter
+
+Brief-ack #1 with explicit named bounded-wait: 3 own PRs (#4221, #4218, #4211) all in CI; all auto-armed; will merge on CI green. No unresolved threads on any. Per counter-with-escalation rule + diminishing-marginal-value clause: substrate work from #4220 template-fix landed last tick; this tick is bounded acknowledgment.
+
+## Substantive work this tick
+
+None beyond refresh. Substrate-debt paydown on peer Otto-CLI shards' 21 NEW findings (per [2139Z finding](../../../../../../docs/hygiene-history/ticks/2026/05/18/2139Z.md)) is NOT mine to fix under cross-Otto coordination discipline; peer Otto-CLI sees their own substrate naturally. Operator-authority items (ontological-protocol B-NNNN candidate) still pending auth — not auto-filing.
+
+## CronList
+
+de1e7f5d sentinel alive (`* * * * *` recurring; `<<autonomous-loop>>`).
+
+## Visibility-stop
+
+End of tick.