shard(tick): 0517Z — bus hygiene + B-0529 filed + restraint discipline on B-0527 advisory

docs/hygiene-history/ticks/2026/05/15/0517Z.md

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+| 2026-05-15T05:17:00Z | claude-opus-4-7 | 596e842c | shard: bus hygiene + filed B-0529 (tick-shard validator drift) + chose not to republish B-0527 advisory | (PR #3362) | restraint discipline: republish #2 not heard → republish #3 would be the holding-pattern failure mode; substrate-honest non-action |
+
+# Tick 0517Z — bus hygiene + filed B-0529 backlog row for tick-shard validator drift; chose NOT to republish B-0527 advisory (restraint discipline)
+
+## Headline
+
+- **Bus hygiene**: cleaned 1 expired envelope (`d2b7fc2f` — the 0414Z B-0527 republish; expired at 05:14Z). Remaining bus state: 4 envelopes (1 `44aaf799` worktree-prune-race shadow-catch + 3 background-notifier ready-to-grind for B-0441/B-0170/B-0503).
+- **B-0527 collision STATE UNCHANGED**: PRs [#3323](https://github.com/Lucent-Financial-Group/Zeta/pull/3323) + [#3315](https://github.com/Lucent-Financial-Group/Zeta/pull/3315) still OPEN, no commits since 00:32Z + 00:44Z respectively. Gate=UNKNOWN (mergeable recomputing after main moved). Lior took no action on the two prior republishes.
+- **Restraint discipline applied**: chose NOT to publish a third republish. Two prior advisories (at 0043Z and 0414Z) were not acted on. A third would be the "Holding"-pattern failure mode per [`.claude/rules/holding-without-named-dependency-is-standing-by-failure.md`](../../../../../.claude/rules/holding-without-named-dependency-is-standing-by-failure.md). The advisory channel doesn't reach Lior; the auto-merge race will surface the conflict at merge-time anyway. Documented as substrate-honest non-action.
+- **Filed B-0529 P2** for tick-shard schema validator-vs-practice drift via PR [#3362](https://github.com/Lucent-Financial-Group/Zeta/pull/3362) (auto-merge armed). Row recommends Option 3 hybrid (pipe-row first line + H1-rich body), sequenced as three sub-tasks: backfill + README + CI wiring.
+- **PR [#3361](https://github.com/Lucent-Financial-Group/Zeta/pull/3361)** (0503Z shard): still in CI wait state, `unresolvedThreads: 0`, auto-merge armed.
+- Cron sentinel `596e842c` still armed.
+
+## Δ since 0503Z
+
+| What | At 0503Z | At 0517Z |
+|---|---|---|
+| PR #3359 (0414Z+0458Z shards) | OPEN, 4 unresolved threads | MERGED 05:13:21Z (commit `19e7362`) |
+| PR #3361 (0503Z shard) | OPEN, auto-merge armed, wait-ci | OPEN, auto-merge armed, wait-ci (unchanged in 14 min) |
+| PR #3362 (B-0529 row) | did not exist | OPEN, auto-merge armed |
+| Bus envelopes | 5 (1 expired-pending, 4 live) | 4 (`d2b7fc2f` cleaned; 4 remain) |
+| B-0527 PRs (#3323/#3315) | DIRTY, no Lior action | UNKNOWN (gate recomputing), no Lior action |
+| Backlog top-of-disk | B-0526 | B-0529 (B-0527 still in race; B-0528 left free for Lior's potential rename) |
+
+## Substrate-honest observations
+
+### Restraint as discipline — chose not to republish
+
+The B-0527 collision advisory was published at 0043Z (envelope expired) and republished at 0414Z (envelope expired at 05:14Z, cleaned this tick). Two advisories. Neither reached Lior in time to act.
+
+A third republish would:
+
+- Carry the same content (no new info to share)
+- Likely expire unacted (same channel, same audience, same outcome)
+- Constitute the "Holding"-pattern failure mode the rule warns against ("re-publishing IS substantive work" — only when re-publishing actually changes the substrate-state; mechanical re-publishing with identical content past unanswered #2 is just Holding in different clothing)
+
+The substrate-honest non-action: stop republishing, document why. The auto-merge race will surface the conflict at merge-time (whichever PR rebases first wins; the other will conflict on the file path). That's a self-resolving signal; the advisory was for proactive notification, not gating.
+
+This composes with [`.claude/rules/additive-not-zero-sum.md`](../../../../../.claude/rules/additive-not-zero-sum.md): the substrate already preserves the finding (in 0043Z shard, in 0414Z shard, in B-0529 row referenced PR refs, in this shard). Constant republishing is zero-sum noise; substrate preservation is additive.
+
+### B-0529 row as escalation channel substitute
+
+Where the bus advisory channel didn't reach Lior, the backlog row IS the durable substrate. B-0529's "Composes with" section references both PR #3323 and #3315 transitively (via PR #3359 and #3361). When Lior next reads the backlog as a ready-to-grind candidate, they'll surface this row and see the B-0527 collision context through it.
+
+This is itself substrate-honest: the backlog is the durable surface; bus is the ephemeral surface. When ephemeral fails, escalate to durable.
+
+### ID allocation discipline followed for B-0529
+
+Per [`.claude/rules/otto-channels-reference-card.md`](../../../../../.claude/rules/otto-channels-reference-card.md) ID-allocation discipline:
+
+- On-disk top: B-0526
+- In-flight PRs for B-0527: 2 (the racing #3323 + #3315)
+- B-0528: deliberately LEFT FREE for Lior's potential B-0527 rename per the prior advisory's mitigation
+- B-0529: this tick's row
+
+Two-step check (on-disk + in-flight) ran cleanly; no collision risk for B-0529.
+
+### Recovery-worktree-borrowing pattern: 5 borrows on same worktree
+
+The `/private/tmp/zeta-otto-cli-0027z-sidetick` worktree has now been borrowed five times across four ticks (0452Z×1, 0458Z×1, 0503Z×2 review-fix, 0517Z×1 for B-0529 + this shard). Each borrow:
+
+1. `git fetch origin main` to catch up
+2. `git switch -c <new-branch> origin/main` for new work, OR `git switch <existing-branch>` + `git pull --ff-only origin <existing-branch>` for iteration
+3. Write/edit + `git add` explicit paths only + `git commit`
+4. `git push -u origin <branch>`
+5. `gh pr create` + arm auto-merge
+6. `git switch <peer-branch>` to restore
+
+Peer-Otto WIP (`M .claude/skills/save-ai-memory/SKILL.md` + 2 untracked files) preserved across ALL FIVE borrows. The pattern is robust; the only failure mode encountered is "remote ref disappeared while iterating" (PR auto-merged mid-edit). Mitigation already documented in 0503Z shard: pivot to a new branch off origin/main, the staged working tree state carries over.
+
+## Cron sentinel
+
+`596e842c` armed.
+
+## Next
+
+Cron-driven. Next tick:
+
+1. Verify PR #3361 + PR #3362 CI green + auto-merge fires
+2. Re-check B-0527 collision state (whether either #3323/#3315 rebases or whether Lior renames)
+3. If `44aaf799` (worktree-prune-race shadow-catch) expires at 05:51Z without peer attention, decide between (a) clean expired + drop OR (b) escalate to a B-NNNN row (similar to B-0529 substitution pattern)
+4. Investigate worktree-prune-race source if not overtaken by higher-priority work (`launchctl list | grep zeta`, `ps`, `fs_usage`)