docs(archive): Lior preservation 3882, 3875, 3873

docs/pr-discussions/PR-3873-shard-tick-2026-05-16t12-36z-pure-git-tier-2nd-multi-otto-co.md

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+---
+pr_number: 3873
+title: "shard(tick): 2026-05-16T12:36Z \u2014 pure-git tier; 2nd multi-Otto contamination in 3 ticks"
+author: "AceHack"
+state: "MERGED"
+created_at: "2026-05-16T13:01:49Z"
+merged_at: "2026-05-16T13:03:20Z"
+closed_at: "2026-05-16T13:03:20Z"
+head_ref: "otto-cli-tick-2026-05-16-1236z"
+base_ref: "main"
+archived_at: "2026-05-16T13:45:02Z"
+archive_tool: "tools/pr-preservation/archive-pr.ts"
+---
+
+# PR #3873: shard(tick): 2026-05-16T12:36Z — pure-git tier; 2nd multi-Otto contamination in 3 ticks
+
+## PR description
+
+Deferred-PR landing under pure-git tier discipline (branch pushed when GraphQL=0).
+
+## Shard
+
+[`docs/hygiene-history/ticks/2026/05/16/1236Z.md`](../hygiene-history/ticks/2026/05/16/1236Z.md) — 2nd multi-Otto contamination observation of this session. HEAD bounced back to the PR #3871 branch under peer-Otto's `fix_branch` shell function (PID 75933 observed at 12:21Z firing `git switch <branch>` against the shared `.git/`).
+
+## Pattern stable
+
+| Tick | HEAD at tick start |
+|---|---|
+| 12:11Z | `otto-cli-b0206-audit-2026-05-16-1207z` (own) |
+| 12:21Z | `otto-cli-b0037.2-audit-2026-05-16-1131z` (peer MD018 branch) |
+| 12:36Z | `otto-cli-b0206-audit-2026-05-16-1207z` (bounced back) |
+
+Defense pattern (`git branch --show-current` + `git switch -c <fresh> origin/main`) 100% effective. B-0519 RCA confirmed at high cadence.
+
+## Reviews
+
+### COMMENTED — @copilot-pull-request-reviewer (2026-05-16T13:03:09Z)
+
+## Pull request overview
+
+Adds a hygiene-history tick shard recording the 2026-05-16T12:36Z autonomous-loop observation and the pure-git operating tier under GraphQL exhaustion.
+
+**Changes:**
+- Documents the second multi-Otto HEAD-contamination observation in three ticks.
+- Records the pure-git tier decision, deferred PR backlog, sentinel status, and visibility signals.
+- Links the branch-push counter rationale to the existing refresh-world-model poll PR gate rule.

docs/pr-discussions/PR-3875-shard-tick-2026-05-16t12-53z-3rd-contamination-in-4-ticks-mi.md

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+---
+pr_number: 3875
+title: "shard(tick): 2026-05-16T12:53Z \u2014 3rd contamination in 4 ticks; mid-tick rate-reset"
+author: "AceHack"
+state: "MERGED"
+created_at: "2026-05-16T13:09:58Z"
+merged_at: "2026-05-16T13:11:53Z"
+closed_at: "2026-05-16T13:11:53Z"
+head_ref: "otto-cli-tick-2026-05-16-1253z"
+base_ref: "main"
+archived_at: "2026-05-16T13:44:58Z"
+archive_tool: "tools/pr-preservation/archive-pr.ts"
+---
+
+# PR #3875: shard(tick): 2026-05-16T12:53Z — 3rd contamination in 4 ticks; mid-tick rate-reset
+
+## PR description
+
+Final shard in the 12:21Z/12:36Z/12:53Z deferred-PR cluster. Push completed ~10 min after launch due to peer-Otto git contention on shared `.git/`. PR-create deferred to post-push.
+
+## Shard
+
+[`docs/hygiene-history/ticks/2026/05/16/1253Z.md`](../hygiene-history/ticks/2026/05/16/1253Z.md) — 3rd multi-Otto contamination observation. HEAD at tick start: `otto-cli-audit-subclass-catalog-2026-05-16-1156z` (3rd distinct peer branch this session).
+
+## Pattern stable across 4 ticks
+
+| Tick | HEAD at tick start |
+|---|---|
+| 12:11Z | `otto-cli-b0206-audit-2026-05-16-1207z` (own) |
+| 12:21Z | `otto-cli-b0037.2-audit-2026-05-16-1131z` (peer) |
+| 12:36Z | `otto-cli-b0206-audit-2026-05-16-1207z` (bounced back) |
+| 12:53Z | `otto-cli-audit-subclass-catalog-2026-05-16-1156z` (new peer branch) |
+
+Defense pattern (`git branch --show-current` + `git switch -c <fresh> origin/main`) 100% effective: 4/4 ticks caught contamination before any commit; 0 false-branch commits.
+
+## Mid-tick rate-limit-reset operational
+
+GraphQL went 0→4995 at 12:55Z mid-tick, allowing the deferred-PR backlog (3 branches) to land in coordinated burst — [#3872](https://github.com/Lucent-Financial-Group/Zeta/pull/3872) + [#3873](https://github.com/Lucent-Financial-Group/Zeta/pull/3873) + this PR. Empirical validation of the pure-git tier deferred-PR pattern.
+
+## Reviews
+
+### COMMENTED — @copilot-pull-request-reviewer (2026-05-16T13:12:04Z)
+
+## Pull request overview
+
+Adds a new hygiene-history “tick” shard documenting a 2026-05-16T12:53Z cron fire, capturing the third observed multi-Otto branch contamination within four ticks and the operational plan around an imminent GraphQL rate-limit reset.
+
+**Changes:**
+- Added a new tick record at 12:53Z with refresh-state snapshot (rate limits, processes, HEAD, deferred PR backlog).
+- Documented a 4-tick contamination cadence table and the “defense pattern” effectiveness.
+- Recorded the planned mid-tick transition from pure-git tier to normal tier post reset.

docs/pr-discussions/PR-3882-chore-b-0049-2-close-class-1-pure-drift-retry-mystery-school.md

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+---
+pr_number: 3882
+title: "chore(b-0049.2): close (class #1 pure drift; retry) \u2014 Mystery schools Mithraic Stage-1 scaffold shipped 2026-05-10"
+author: "AceHack"
+state: "MERGED"
+created_at: "2026-05-16T13:38:16Z"
+merged_at: "2026-05-16T13:39:44Z"
+closed_at: "2026-05-16T13:39:44Z"
+head_ref: "otto-cli-b0049.2-close-retry-2026-05-16-1324z"
+base_ref: "main"
+archived_at: "2026-05-16T13:44:56Z"
+archive_tool: "tools/pr-preservation/archive-pr.ts"
+---
+
+# PR #3882: chore(b-0049.2): close (class #1 pure drift; retry) — Mystery schools Mithraic Stage-1 scaffold shipped 2026-05-10
+
+## PR description
+
+Third actual close-row of the audit cycle. Audit-triage retry — first attempt (tick 10:27Z, branch `otto-cli-b0049.2-audit-2026-05-16-1029z`) aborted mid-flight due to peer-Otto session-close branch churn during two-step Edit tool calls.
+
+## Deliverable verification
+
+`docs/substrate-shelves/mystery-schools-mithraic.md`:
+- 435 lines
+- 141 domain-term mentions (mithra, tauroctony, cumont, roman, initiation)
+- Proper backlog-linked frontmatter
+- CATALOG-ONLY register preserved (filters F1/F2/F3 OFF)
+- Stage-2 queue note present
+
+**Class #1 (pure drift)** — file landed 2026-05-10 (frontmatter date matches row's filed date); row's `status: open` was never updated.
+
+## Multi-Otto contamination + recovery
+
+Single-shot Bash sed/heredoc avoided the multi-Edit-tool window that hit the contamination race the first time. But peer-Otto's worktree-switch during this commit's git operations still landed my fix commit on peer's branch label (`otto-cli-tick-2026-05-16-1310z`). Recovery: `git push origin <SHA>:refs/heads/<intended-branch>` to push the commit-by-SHA to the correct remote branch name.
+
+The empirical pattern accumulating: when peer-Otto is highly active (33+ Lior procs + 8+ claude procs), single-shot Bash composability is necessary but not sufficient. SHA-push as final-fallback recovery handles the peer-worktree-switch race.
+
+## Changes
+
+- Frontmatter `status: open` → `status: closed`
+- Resolution section appended (cites the recovery pattern)
+- `docs/BACKLOG.md` regenerated via `BACKLOG_WRITE_FORCE=1 bun tools/backlog/generate-index.ts`
+
+🤖 Generated with [Claude Code](https://claude.com/claude-code)
+
+## Reviews
+
+### COMMENTED — @chatgpt-codex-connector (2026-05-16T13:40:06Z)
+
+
+### 💡 Codex Review
+
+Here are some automated review suggestions for this pull request.
+
+**Reviewed commit:** `a942e95132`
+
+
+<details> <summary>ℹ️ About Codex in GitHub</summary>
+<br/>
+
+[Your team has set up Codex to review pull requests in this repo](https://chatgpt.com/codex/cloud/settings/general). Reviews are triggered when you
+- Open a pull request for review
+- Mark a draft as ready
+- Comment "@codex review".
+
+If Codex has suggestions, it will comment; otherwise it will react with 👍.
+
+
+Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".
+
+</details>
+
+### COMMENTED — @copilot-pull-request-reviewer (2026-05-16T13:40:39Z)
+
+## Pull request overview
+
+This PR closes backlog row B-0049.2 after verifying the Mithraic mystery-schools Stage-1 scaffold already shipped, and regenerates the backlog index to reflect the closed status.
+
+**Changes:**
+- Marks B-0049.2 as `closed`.
+- Adds a Resolution section documenting the drift-audit closure.
+- Updates `docs/BACKLOG.md` generated checkbox state.
+
+### Reviewed changes
+
+Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.
+
+| File | Description |
+| ---- | ----------- |
+| `docs/backlog/P2/B-0049.2-mystery-schools-stage1-mithraic-bibliographic-scaffold.md` | Closes the row and records closure evidence. |
+| `docs/BACKLOG.md` | Regenerated index showing B-0049.2 as closed. |
+
+## Review threads
+
+### Thread 1: docs/backlog/P2/B-0049.2-mystery-schools-stage1-mithraic-bibliographic-scaffold.md:4 (unresolved)
+
+**@chatgpt-codex-connector** (2026-05-16T13:40:06Z):
+
+**<sub><sub>![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)</sub></sub>  Update last_updated when closing backlog row**
+
+This change marks the row as `status: closed` and adds a new resolution section, but leaves `last_updated` at `2026-05-10`. The backlog schema says `last_updated` must be updated on every content edit, so this introduces stale metadata that can skew recency/age-based backlog tooling and audits for this item. Please bump `last_updated` to the closure edit date (here, `2026-05-16`) when closing the row.
+
+Useful? React with 👍 / 👎.
+
+### Thread 2: docs/backlog/P2/B-0049.2-mystery-schools-stage1-mithraic-bibliographic-scaffold.md:74 (unresolved)
+
+**@copilot-pull-request-reviewer** (2026-05-16T13:40:39Z):
+
+P1: This row now has a 2026-05-16 status/content edit, but its frontmatter `last_updated` still reads 2026-05-10. `tools/backlog/README.md:57-70` requires `last_updated` to be updated on every per-row content edit, so update the frontmatter date with this closure.
+
+### Thread 3: docs/backlog/P2/B-0049.2-mystery-schools-stage1-mithraic-bibliographic-scaffold.md:77 (unresolved)
+
+**@copilot-pull-request-reviewer** (2026-05-16T13:40:39Z):
+
+P2: The verification note says the deliverable has 435 lines, but the current repository file is reported as 436 lines. Keep this count in sync or drop the exact count so the closure evidence does not immediately drift.