diff --git a/docs/hygiene-history/ticks/2026/05/15/0230Z.md b/docs/hygiene-history/ticks/2026/05/15/0230Z.md
new file mode 100644
index 000000000..746ff1893
--- /dev/null
+++ b/docs/hygiene-history/ticks/2026/05/15/0230Z.md
@@ -0,0 +1,43 @@
+# Tick 0230Z — PR #3339 ready-to-merge (3 Copilot threads + lint cleared); PR #3349 picked up 2 P1 catches + fixed; multi-Otto contamination caught mid-tick
+
+## Headline
+
+- PR [#3339](https://github.com/Lucent-Financial-Group/Zeta/pull/3339) (`feat/rule-shadow-star-shorthand-cold-boot-otto-cli-2026-05-15`): gate=CLEAN, 7/7 required ok, 0 unresolved threads, auto-merge armed. **Three Copilot threads resolved** (P1 name-attribution per `docs/AGENT-BEST-PRACTICES.md:671-685`, grammar, unreachable-provenance refs); `lint (markdownlint)` MD049 violation fixed. Three commits landed: `dd18038` + `87bdabc` + `343ece8`.
+- PR [#3349](https://github.com/Lucent-Financial-Group/Zeta/pull/3349) (`fix/save-ai-memory-tsc-errors-otto-cli-2026-05-15`): gate=UNSTABLE on fresh push (mergeable=UNKNOWN — CI recomputing). 7/7 required ok at last poll. **Two Copilot P1 catches addressed** in `82cb97c`: flag-as-value rejection (`--ai-name --platform grok` no longer eats the next flag) + `--platform` runtime validation against `ALLOWED_PLATFORMS` set. Smoke-tested all three error paths.
+- Cron sentinel `a2c54a1c` still armed.
+
+## Substrate-honest mid-tick observations
+
+### Multi-Otto contamination caught
+
+Between two Bash-tool calls, the primary worktree's `.git/HEAD` changed from `ref: refs/heads/fix/save-ai-memory-tsc-errors-otto-cli-2026-05-15` to a raw SHA `65c7865`. Another agent process (likely Lior on the `lior/decompose-b0139-4` rebase whose `.git/rebase-merge/` was sitting in this `.git/` dir from 20:36Z) resumed the rebase, moving HEAD to a detached state on a different commit. The path under `pwd` (`/Users/acehack/Documents/src/repos/Zeta`) was unchanged.
+
+This is the exact pattern documented in [B-0519 RCA](../../../../../backlog/P3/B-0519-multi-otto-branch-state-contamination-rca-2026-05-14.md). The branch-guard inline check (`test "$(git branch --show-current)" = "<expected>"`) is the substrate-honest primary catch — and it would have prevented a wrong-branch commit if I'd tried. Instead, I pivoted to a dedicated worktree at `/tmp/zeta-otto-cli-fix-3349-threads` per [`.claude/rules/claim-acquire-before-worktree-work.md`](../../../../../../.claude/rules/claim-acquire-before-worktree-work.md) Worktree force-remove guard (clause 1: create a new worktree at a different path).
+
+### Cross-PR dependency surfaced
+
+The `lint (tsc tools)` failure on #3339 (non-required) is the same 6 errors I fixed in #3349. Once #3349 merges, #3339 will need a rebase to pick up the clean `process-extract.ts` — but `lint (tsc tools)` is non-required and not blocking the gate. Substrate-honest noted; no rebase needed before #3339's auto-merge fires.
+
+## Δ since 0213Z (last shard)
+
+| What | Before | After |
+|---|---|---|
+| PR #3339 gate | BLOCKED (3 threads + 2 failed checks) | CLEAN (0 threads, auto-merge armed) |
+| PR #3339 commits | `e30ec2b` | `343ece8` (+3 commits: mdlint + 3-thread-fix + name-attribution) |
+| PR #3349 threads | 0 | 0 (2 new threads opened post-CI + both resolved with `82cb97c`) |
+| PR #3349 commits | `c86f9f4` | `82cb97c` (+1 commit: flag-as-value + platform validation) |
+| Worktrees added | 0 | 2 (`/tmp/zeta-otto-cli-fix-3339-mdlint`, `/tmp/zeta-otto-cli-fix-3349-threads`) |
+
+## Worktrees alive after this tick (Otto-CLI)
+
+- `/tmp/zeta-otto-cli-fix-3339-mdlint` on `feat/rule-shadow-star-shorthand-cold-boot-otto-cli-2026-05-15` — will prune after #3339 merges
+- `/tmp/zeta-otto-cli-fix-3349-threads` on `fix/save-ai-memory-tsc-errors-otto-cli-2026-05-15` — will prune after #3349 merges
+- Primary worktree at `/Users/acehack/Documents/src/repos/Zeta` is contaminated (detached HEAD on Lior's rebase) — TREAT AS READ-ONLY until peer clears it
+
+## Cron sentinel
+
+`a2c54a1c` armed.
+
+## Next
+
+Cron-driven. Next tick verifies #3339 + #3349 merge state, prunes the worktrees if both merged, and scans the bus / backlog ready-to-grind list for the next pick.