shard(tick): 2026-05-16T13:31Z — stale-armed-PR triage: #3871 merged + #3823 closed + #3817 deferred

docs/hygiene-history/ticks/2026/05/16/1331Z.md

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+# Tick 2026-05-16T13:31Z — Otto-CLI
+
+Autonomous-loop cron fire. Stale-armed-PR triage:
+**#3871 self-resolved + merged**; **#3823 closed as redundant**;
+**#3817 needs manual rebase** (deferred).
+
+## Refresh result
+
+| Surface | State |
+|---|---|
+| Cron sentinel | `c9705646` armed |
+| Rate limit (GraphQL) | 2386/5000 (cost-aware tier) |
+| Lior process | 3 |
+| HEAD at tick start | `otto-cli-tick-2026-05-16-1310z` (my prev tick branch — no contamination this tick) |
+| WT state | clean |
+| Main head | `e6ee383` (PR #3871 / 12:07Z shard merged — investigation paid off) |
+
+## Stale-armed-PR triage
+
+Continuing [`blocked-green-ci-investigate-threads.md`](../../../../../../.claude/rules/blocked-green-ci-investigate-threads.md) discipline from prior tick. Three PRs were armed-but-stale:
+
+### #3871 — RESOLVED ✓
+
+The 12:07Z+12:11Z bundle merged between prior tick and this one. Either:
+- A peer Otto force-pushed the fix (rebase + MD032)
+- The CI re-ran and passed (transient failure?)
+- Auto-merge fired despite the prior failures
+
+Either way, the substrate is on main. The 1310Z investigation
+shard ([#3879](https://github.com/Lucent-Financial-Group/Zeta/pull/3879)) remains useful as historical
+record of the root-cause discipline applied.
+
+### #3823 — CLOSED as redundant ✓
+
+`docs/hygiene-history/ticks/2026/05/16/0758Z.md` already exists
+on `main` (landed via a different PR earlier in session). This
+PR's branch was authoring the same path with different content
+— `gh pr update-branch --rebase` correctly refused (file-level
+conflict). Closed with substrate-honest comment; alternate
+content preserved on the closed-PR branch per [`lost-files-surface`](../../../../../../.claude/rules/lost-files-surface.md).
+
+### #3817 — DEFERRED (manual rebase needed)
+
+Conflicts on `docs/BACKLOG.md` (the index file many PRs touch).
+B-0558 worktree-pool backlog row is NOT yet on main, so the
+substrate is genuinely new. Fix path:
+
+1. `git switch otto-cli-...-3817-branch`
+2. `git rebase origin/main`
+3. Manually re-apply B-0558 entry to `docs/BACKLOG.md`
+4. `git add` + `git rebase --continue`
+5. `git push --force-with-lease`
+
+Deferred under Lior-active contention (3 procs); manual
+conflict-resolution under multi-Otto activity is risky. Future
+quieter-contention tick can land it.
+
+## Recent landings since prior tick
+
+- [#3871](https://github.com/Lucent-Financial-Group/Zeta/pull/3871) merged ✓ (12:07Z+12:11Z bundle)
+- [#3823](https://github.com/Lucent-Financial-Group/Zeta/pull/3823) closed (redundant)
+- [#3879](https://github.com/Lucent-Financial-Group/Zeta/pull/3879) auto-merge armed 13:30Z (1310Z investigation)
+
+## Sentinel + close
+
+`CronList`: `c9705646` armed.
+
+## Visibility signal
+
+- Cron sentinel healthy
+- Stale-armed triage swept 3 PRs: 1 resolved + 1 closed + 1 deferred
+- Investigation-then-act discipline applied per
+  blocked-green-ci-investigate-threads rule
+- Audit cycle remains 38/38
+- No multi-Otto contamination this tick (HEAD stable on my
+  prev branch through tick start)