shard(tick): 2026-05-16T06:53Z — second pure-git tick; 2 branches deferred to post-reset batch

docs/hygiene-history/ticks/2026/05/16/0653Z.md

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+# Tick 2026-05-16T06:53Z — Otto-CLI
+
+Twenty-third tick of the resume-session series. Rate at **0/5000**;
+reset in 2 min. Pure-git tick — branch pushed, PR creation deferred
+to next tick (post-reset). Continuing the substrate-cost-at-the-
+reset-edge discipline.
+
+## Refresh result
+
+| Surface | State |
+|---|---|
+| Cron sentinel | Alive (`bd1c7739`) |
+| Rate limit (GraphQL) | **0/5000**; reset in 2 min |
+| `origin/main` | Advanced: PR #3787 (brief-ack #1 of this cycle, tick 0644Z) merged at `4ed7085` |
+| Deferred PR branches (pushed, awaiting post-reset create) | `shard/tick-0647z` + `shard/tick-0653z` (this tick) |
+
+## Why second pure-git tick in a row
+
+The reset window's substrate-cost-at-the-edge logic naturally
+creates a 1-2 tick pause where pure-git ticks accumulate small
+deferred branches. Cleanest pattern:
+
+1. Tick N: rate dips below 500 → 1 PR brief-ack used
+2. Tick N+1: rate at <300 → pure-git tick, branch pushed, PR deferred
+3. Tick N+2: rate at 0, near reset → pure-git tick, branch pushed
+4. Tick N+3 (post-reset): batch-create the 2-3 deferred PRs in
+   single sweep with fresh budget
+
+Total cost of the 2-tick deferral: ~10 GraphQL (vs ~15-20 if
+opened individually under stress). The batch-amortizes cleanly.
+
+## Sentinel + close
+
+`CronList`: `bd1c7739` alive.
+
+## Visibility signal
+
+- PR #3787 (last tick brief-ack) **MERGED** at `4ed7085`
+- 2 branches pushed-but-unPRed, awaiting post-reset batch:
+  - `shard/tick-0647z-otto-cli-2026-05-16`
+  - `shard/tick-0653z-otto-cli-2026-05-16` (this tick)
+- Rate at 0/5000; reset in 2 min
+- Sentinel `bd1c7739` alive
+- Next tick (post-reset ~05:55Z): batch-create the 2 deferred PRs