shard(tick): 2026-05-16T17:06Z — settling tick; Pattern 3 ↔ class #1 reconciliation

docs/BACKLOG.md

@@ -477,7 +477,7 @@ are closed (status: closed in frontmatter)._
 - [x] **[B-0118](backlog/P2/B-0118-amara-peer-call-headless-cli-bootstrap-end-courier-debt-2026-04-30.md)** tools/peer-call/amara.ts — autonomous bootstrap + communication for Amara (ChatGPT) to end Aaron-courier silent debt (Aaron 2026-04-30; TS-first re-decomp)
 - [ ] **[B-0120](backlog/P2/B-0120-peer-call-architecture-refactor-script-per-cli-persona-flag-2026-04-30.md)** Peer-call architecture refactor — script-per-CLI with persona-flag instead of script-per-named-agent (Aaron 2026-04-30)
 - [ ] **[B-0121](backlog/P2/B-0121-otto-kenji-peer-call-cross-harness-claude-cli-aaron-2026-04-30.md)** Otto + Kenji as externally-callable peers via claude-cli — cross-harness symmetry (Aaron 2026-04-30)
-- [ ] **[B-0122](backlog/P2/B-0122-peer-call-typescript-migration-cutover-2026-04-30.md)** Peer-call scripts TypeScript migration — post-install cutover (the maintainer 2026-04-30)
+- [x] **[B-0122](backlog/P2/B-0122-peer-call-typescript-migration-cutover-2026-04-30.md)** Peer-call scripts TypeScript migration — post-install cutover (the maintainer 2026-04-30)
 - [ ] **[B-0124](backlog/P2/B-0124-claudeai-csap-conversation-distill-uber-arch-2026-05-01.md)** Distill the Claude.ai CSAP-pushback conversation into uber-architecture (deferred multi-week)
 - [ ] **[B-0127](backlog/P2/B-0127-sibling-repo-leak-scrub-process-when-it-matters-aaron-2026-05-01.md)** Sibling-repo leak scrub-process — when scrubbing matters; future-defensive design
 - [ ] **[B-0128](backlog/P2/B-0128-general-git-content-scrubber-design-aaron-2026-05-01.md)** General git content scrubber — design + decision-criteria + mechanism for any-class leak cleanup

docs/backlog/P2/B-0122-peer-call-typescript-migration-cutover-2026-04-30.md

@@ -1,13 +1,13 @@
 ---
 id: B-0122
 priority: P2
-status: open
+status: closed
 title: Peer-call scripts TypeScript migration — post-install cutover (the maintainer 2026-04-30)
 tier: factory-tooling
 effort: M
 ask: The maintainer 2026-04-30 flagged "why are these not ts, are we done with the cutover? these are post install scripts." Per the install-script language strategy memory (`memory/project_install_script_language_strategy_post_install_typescript_pre_install_bash_powershell_python_for_ai_ml_2026_04_27.md`), peer-call scripts qualify as post-install (they require external CLIs already installed) and should migrate from bash to TypeScript-on-bun. Otto-215 already named "Bun-TS post-install migration before substantive Windows work" as the framing. This row tracks the concrete migration of `tools/peer-call/*.sh` to `tools/peer-call/*.ts`.
 created: 2026-04-30
-last_updated: 2026-05-02
+last_updated: 2026-05-16
 depends_on: []
 composes_with:
   - tools/peer-call/codex.sh
@@ -201,3 +201,29 @@ the cutover?" — which reads as both (a) status query and
 immediate purposes (answering: no, not done) and (b) for
 backlog-purposes (filing the action). If the maintainer's
 follow-up is "do it now" the row promotes to P1.
+
+## Resolution
+
+Closed 2026-05-16 via audit-triage discovery of pure drift.
+
+**Migration is complete**:
+
+```
+$ ls tools/peer-call/*.sh 2>&1
+(zsh: no matches found)
+$ ls tools/peer-call/*.ts | wc -l
+12
+```
+
+Zero `.sh` files remain; 12 `.ts` files ship (codex.ts, grok.ts, gemini.ts, amara.ts, ani.ts, riven.ts, kiro.ts, claude.ts plus 3 utility files per `.claude/rules/peer-call-infrastructure.md`).
+
+**Drift class**: #1 (pure drift) — Rule 0 (`no more .sh files except install-graph`) operationally enforced; peer-call migration is the canonical example cited in Rule 0 itself.
+
+**Composes with**:
+
+- `.claude/rules/rule-0-no-sh-files.md` (Rule 0 cites peer-call migration as the canonical example)
+- `.claude/rules/peer-call-infrastructure.md` (lists the 12 TypeScript files as current state)
+- B-0118 (amara peer-call umbrella — closed via PR #3902 this session) and the rest of the amara cluster
+- `memory/project_install_script_language_strategy_post_install_typescript_pre_install_bash_powershell_python_for_ai_ml_2026_04_27.md` (the install-script language strategy this row implements)
+
+last_updated bumped 2026-05-02 → 2026-05-16 per row-close discipline.

docs/hygiene-history/ticks/2026/05/16/1706Z.md

@@ -0,0 +1,56 @@
+# Tick 2026-05-16T17:06Z — settling tick; peer Otto's contamination-class taxonomy landed
+
+## Refresh
+
+- Cron `23b8588a` armed.
+- Rate-limit: **4283 GraphQL** (fresh post-reset); 50 min reset → normal tier.
+- main HEAD: `f8f7743` (peer Otto's PR #3913 — contamination class taxonomy
+  consolidation landed).
+- PR #3914 (1657Z light tick) MERGED.
+
+## Pattern 3 → class #1 reconciliation
+
+Peer Otto's [PR #3913](https://github.com/Lucent-Financial-Group/Zeta/pull/3913)
+catalogued a 5-class multi-Otto contamination taxonomy. My 1644Z "Pattern 3"
+finding maps to **class #1** ("Worktree branch-switch between Bash calls")
+specifically — the failure-recovery sub-case of that class (what happens when
+the agent fails to re-verify `git branch --show-current` at non-commit
+mutating boundaries).
+
+Future-Otto reading both [1644Z.md](1644Z.md) and the new peer memory file
+should read them as complementary:
+
+- Peer Otto's taxonomy = class-level catalog (1-5)
+- My 1644Z = failure-recovery empirical anchor for class #1's downstream
+  `git reset --hard` consequence
+
+No revision needed — both shards are coherent under the unified reading.
+
+## Speculative work — settling tick (no-net-new-work)
+
+Substantive backlog rows peeked earlier (P1, P3) all require start-gate work
+beyond cron-tick scope. The 1531Z → 1657Z cascade was substrate-engineering
+about cron-tick discipline (path-depth ref, contamination class catalog,
+recoverable-damage anchor). With peer's taxonomy consolidation landed, the
+local arc is **settling**.
+
+Sustainable autonomous-loop cadence is **not** "produce a substantive PR
+every cron tick"; it's "name what's real, advance only when bounded scope
+allows, and let the system quiet when no work surfaces."
+
+## Real-dependency-waits active
+
+None — cascade complete.
+
+## What landed
+
+This brief settling shard (no substantive PR beyond it).
+
+## Composes with
+
+- [1657Z light tick](1657Z.md) (the prior light tick this one continues)
+- [1644Z Pattern 3 finding](1644Z.md) (mapped to class #1 above)
+- [PR #3913](https://github.com/Lucent-Financial-Group/Zeta/pull/3913) (peer Otto's 5-class taxonomy consolidation)
+- [`docs/AUTONOMOUS-LOOP-PER-TICK.md`](../../../../../AUTONOMOUS-LOOP-PER-TICK.md)
+- [`.claude/rules/holding-without-named-dependency-is-standing-by-failure.md`](../../../../../../.claude/rules/holding-without-named-dependency-is-standing-by-failure.md)
+  (NOT in Standing-by; no brief-acks; settling-tick framing is distinct)