docs(tick): 0012Z Otto-CLI markdownlint fix on PR #3974

docs/hygiene-history/ticks/2026/05/17/0012Z.md

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+# Tick 2026-05-17 0012Z — Otto-CLI markdownlint fix on PR #3974
+
+## Surface
+
+Otto-CLI fresh cold-boot session (autonomous-loop scheduled-task fire).
+Repo: `/Users/acehack/Documents/src/repos/Zeta`. Branch:
+`backlog/b-0583-cross-machine-account-scoped-scarcity-bus-2026-05-16`.
+
+## Refresh (Step 1)
+
+- `git fetch origin` — clean
+- `gh api rate_limit` → graphql remaining 4036 (Normal tier per
+  [`refresh-world-model-poll-pr-gate.md`](../../../../../../.claude/rules/refresh-world-model-poll-pr-gate.md))
+- `git log --oneline -5 origin/main` head:
+  `63279a1 docs(tick): 2341Z Otto-CLI background worker — PR #3964
+  thread resolution (#3975)`
+- Lior process active (PID 7851/7852/7964 — `gemini.*Lior` match).
+  Per [`codeql-no-source-on-docs-only-pr-is-broken-commit-canary.md`](../../../../../../.claude/rules/codeql-no-source-on-docs-only-pr-is-broken-commit-canary.md),
+  worktree-creation is risky; in-place edits to the current
+  worktree's already-checked-out branch are OK.
+
+## Holding-discipline (Step 2)
+
+Named dependency surfaced immediately:
+[PR #3974](https://github.com/Lucent-Financial-Group/Zeta/pull/3974)
+BLOCKED with 1 required check failed
+(`lint (markdownlint)`, run 25976015941 job 76356158511) and
+auto-merge armed. Per
+[`blocked-green-ci-investigate-threads.md`](../../../../../../.claude/rules/blocked-green-ci-investigate-threads.md),
+investigate the failure before classifying as wait.
+
+## Work picked (Step 3)
+
+Fix the failing required `lint (markdownlint)` check on PR #3974.
+
+`gh run view 25976015941 --log-failed` named the exact violation:
+
+```
+docs/backlog/P2/B-0583-cross-machine-account-scoped-scarcity-bus-2026-05-16.md:43
+error MD032/blanks-around-lists Lists should be surrounded by
+blank lines
+```
+
+Inspection of line 42-43 confirmed: intro sentence `The "right"
+choice depends on:` directly followed by `- Whether per-poll
+history is needed...` with no blank line.
+
+## Verify + commit (Step 4)
+
+1. `git pull --ff-only origin <branch>` — fast-forwarded local
+   `cb5ce26` → `9a745a9` (peer's slice-decomposition commit
+   added "Decomposition into implementation slices" table at
+   end of file; did NOT touch line 43).
+2. `Edit` tool added single blank line between line 42 and 43.
+3. `bunx markdownlint-cli` locally surfaced MD025/MD013 violations
+   too — those are project-config-disabled and not in CI's report;
+   the fix targets the actual CI-blocking MD032 only.
+4. `ZETA_EXPECTED_BRANCH` set + `git branch --show-current`
+   sanity-check before commit (per
+   [`zeta-expected-branch.md`](../../../../../../.claude/rules/zeta-expected-branch.md)).
+5. `git add` explicit single file (avoided sweeping unrelated WIP:
+   modified `B-0543` + 5 untracked files leftover from prior
+   session — not mine, not related to this fix).
+6. Commit `5ebe94b` shipped: `fix(B-0583): markdownlint MD032 —
+   blank line before list (PR #3974)`.
+7. `git push origin <branch>` → `9a745a9..5ebe94b` succeeded.
+
+## CronList (Step 6)
+
+Cold-boot found NO scheduled jobs. Armed sentinel `11dfdf7f`:
+cron `* * * * *`, prompt `<<autonomous-loop>>`, recurring.
+Per `tick-must-never-stop.md` invariant.
+
+## Visibility signal (Step 7)
+
+**Concrete artifacts this tick:**
+
+- Commit `5ebe94b` on PR #3974 — markdownlint MD032 fix
+- Sentinel cron job `11dfdf7f` armed (`<<autonomous-loop>>` every minute)
+- This shard: `docs/hygiene-history/ticks/2026/05/17/0012Z.md`
+
+**Named-dependency wait now (next tick):** CI re-run on
+`5ebe94b` — once `lint (markdownlint)` passes, PR #3974's auto-merge
+will fire and the slice-decomposition + lint fix land on main.
+ETA bounded by markdownlint job runtime (~1 min based on prior run).
+
+**Unrelated leftover WIP in worktree** (NOT mine, NOT touched):
+
+- Modified: `docs/backlog/P2/B-0543-qg-isomorphism-proof-path-remember-when-pay-attention-axioms-to-quantum-gravity-2026-05-15.md`
+- Untracked: B-0498, B-0584, PR-3949-discussion, research/2026-05-16-imaginary-stack, tools/riven/riven-cursor-terminal-loop.sh
+
+The `tools/riven/riven-cursor-terminal-loop.sh` is a potential
+Rule 0 violation (`.sh` outside `tools/setup/`) — flagged as future
+work but out-of-scope for this tick; the row referencing it (B-0498)
+sits untracked next to it.