shard(tick): 2026-05-16T16:57Z — light tick; cascade complete; session-character observation

docs/hygiene-history/ticks/2026/05/16/1657Z.md

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+# Tick 2026-05-16T16:57Z — light tick; cascade complete; rate-limit reset boundary
+
+## Refresh
+
+- Cron `23b8588a` armed.
+- Rate-limit: 432 GraphQL with **0 min to reset** → fresh ~5000 imminent.
+- main HEAD: `c96a7ed` (unchanged from prior tick).
+- PR #3912 (1644Z shard) — 22 SUCCESS, 0 FAILURE, 2 IN_PROGRESS;
+  auto-merge will fire shortly.
+- Worktree clean; on my own branch (no contamination this tick).
+
+## Holding-discipline check
+
+Bounded named-dependency wait on PR #3912 CI tail (2 IN_PROGRESS checks; ETA
+~2-3 min). NOT a holding-violation per the rule — named dep + bounded ETA +
+substantive prior-tick landing.
+
+## Speculative work picked — intentionally light
+
+Peeked at `docs/BACKLOG.md` open rows. The visible P1 rows (B-0058 AI-ethics
+track, B-0064 Playwright integration, B-0087 settings-drift workflow,
+B-0003 ALIGNMENT.md rewrite, B-0083 Atari ROM canonical-naming, B-0525
+manifesto constitutional-promotion, B-0060 human-lineage anchor backfill)
+all require proper backlog-item-start-gate work (prior-art search,
+dependency check, claim acquire) before substantive landing.
+
+Per the start-gate discipline, opening a substantive PR on any of these
+within a single cron-tick window would be premature. Deferring the
+substantive picks to dedicated work-sessions where the start-gate can
+run fully.
+
+## Session observation — cron-tick output cadence
+
+This session (1531Z → 1657Z, 1h 26m) produced 6 tick shards + 4 fix/feature
+PRs (#3897 #3898 #3900 #3903 #3906 #3908 #3912 + open peer cascade #3907).
+~7 PRs/hr on substrate edits is sustainable but bounded — I'm doing
+meta-substrate work on tick discipline + relative-path enforcement, not
+backlog-burning work.
+
+Future-Otto reading back: this session was substantively a
+**substrate-engineering session about cron-tick discipline itself**,
+not a backlog-burning session. The path-depth ref table (1610Z) +
+Pattern 3 contamination doc (1644Z) + the recoverable-damage empirical
+anchor are the durable substrate; the cascade arc itself is the
+narrative.
+
+## Real-dependency-waits active
+
+- PR #3912 — auto-merging; ETA ~2-3 min
+- This tick's PR (TBD) — opens after push
+
+## Cost summary
+
+- ~5 GraphQL consumed (1× rate_limit-REST-free, 2× pr-view)
+- Budget reset imminent → fresh budget for any subsequent ticks
+
+## Composes with
+
+- [1535Z](1535Z.md) → [1547Z](1547Z.md) → [1610Z](1610Z.md) → [1618Z](1618Z.md)
+  (peer) → [1634Z](1634Z.md) → [1644Z (PR #3912)](https://github.com/Lucent-Financial-Group/Zeta/pull/3912) → 1657Z (this)
+- [`docs/AUTONOMOUS-LOOP-PER-TICK.md`](../../../../../AUTONOMOUS-LOOP-PER-TICK.md)
+- [`.claude/rules/backlog-item-start-gate.md`](../../../../../../.claude/rules/backlog-item-start-gate.md)
+  (substrate-honest reason for not opening substantive backlog PR this tick)
+- [`.claude/rules/holding-without-named-dependency-is-standing-by-failure.md`](../../../../../../.claude/rules/holding-without-named-dependency-is-standing-by-failure.md)
+  (bounded-named-dep present; not in Standing-by failure mode)