diff --git a/docs/hygiene-history/ticks/2026/05/15/2214Z.md b/docs/hygiene-history/ticks/2026/05/15/2214Z.md
new file mode 100644
index 000000000..82ef5c218
--- /dev/null
+++ b/docs/hygiene-history/ticks/2026/05/15/2214Z.md
@@ -0,0 +1,52 @@
+---
+tick: 2214Z
+date: 2026-05-15
+surface: otto-cli
+session: autonomous-loop cron-fire (4 min after cold-boot tick 2210Z)
+---
+
+# Tick 2214Z — auto-merge arming sweep on stuck-no-action PRs
+
+## Refresh
+
+- `bun tools/github/poll-pr-gate-batch.ts --all-open` filtered to non-DIRTY actionable surfaced 4 reports:
+  - #3596 BLOCKED with 6 unresolved threads + failed required check — out of scope (fix-failed-checks)
+  - #3600 BLOCKED wait-CI, auto-merge ARMED (this session's prior tick)
+  - **#3599 BLOCKED wait-CI, auto-merge NONE** — stuck
+  - **#3594 CLEAN no review, no threads, auto-merge NONE** — stuck
+
+## Action
+
+Two `gh pr merge --auto --squash` calls — bounded single-action operations within `dont-ask-permission.md` scope:
+
+- **#3594** ([Lior antigravity check 21:40Z drift report](https://github.com/Lucent-Financial-Group/Zeta/pull/3594)) — Aaron-authored, Lior-payload, docs-only additive (+323/-0). State went CLEAN→MERGED at 22:14:50Z (squashed; new `origin/main` at `4442e3f`).
+- **#3599** ([Maji antigravity check and PR preservation](https://github.com/Lucent-Financial-Group/Zeta/pull/3599)) — same shape (+617/-0). Auto-merge ARMED at 22:14:52Z; awaiting required CI.
+
+## Borrow-on-existing pattern applied
+
+Lior-gemini still active (3 processes: lior-loop-tick.ts + 2× gemini CLI). Per `.claude/rules/codeql-no-source-on-docs-only-pr-is-broken-commit-canary.md` — DO NOT create new worktree.
+
+Mitigation: borrowed the prior tick's worktree at `/private/tmp/zeta-tick-2210z` (formerly on `shard/tick-2210z-otto-cli-2026-05-15`) and `git switch -c shard/tick-2214z-otto-cli-2026-05-15 origin/main`. This bypasses the `worktree add` ref-pack contention path the rule names; only HEAD + local index moved.
+
+Post-switch verification: 52 tree entries, 0 status lines. Clean.
+
+## Substrate-honest framing
+
+Both arms were micro-actions (single `gh` calls). The session-arc plateau still holds — no substantive new substrate authored, just queue maintenance that was already armed-by-design (recent prior sessions consistently arm auto-merge; #3594 + #3599 had simply been left un-armed, likely tick-timing artifact).
+
+This IS bounded operational work the autonomous-loop is designed for; this is NOT scope expansion.
+
+## CronList check
+
+- `d97cdace` armed at 22:09Z (prior tick), still listed (`Every minute (recurring) [session-only]`).
+
+## Visibility signal
+
+Concretely landed this tick:
+
+- **PR #3594 MERGED** at 22:14:50Z (auto-merge tripped immediately on CLEAN state).
+- **PR #3599 auto-merge armed** at 22:14:52Z — will trip on CI completion.
+- This shard at `docs/hygiene-history/ticks/2026/05/15/2214Z.md` on branch `shard/tick-2214z-otto-cli-2026-05-15`.
+- Borrow-on-existing pattern field-validated against active-Lior risk.
+
+Stop.