shard(tick): 2026-05-16T04:38Z — 3-tick session summary; 5 PRs merged#3741
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…; Lior contention pattern named Co-Authored-By: Claude <noreply@anthropic.com>
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Pull request overview
Adds a new hygiene-history tick shard documenting the 2026-05-16T04:38Z “third-tick recovery” session outcome and the observed multi-process lock contention pattern, preserving what merged across the 3-tick window.
Changes:
- Create
0438Z.mdtick shard with refresh state, merged-PR summary table, and contention/mitigation notes. - Add cross-references to the shipped mutex tool and the relevant
.claude/rules/*mitigation rule.
| 4. **HEAD desync mid-chain**: an earlier shard commit (`6015c61`) landed on the previous tick's branch instead of the just-created branch, suggesting Lior's cleanup may touch HEAD/index files | ||
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| The shipped tool that detects this exact failure class is | ||
| [`tools/orchestrator-checks/cron-sentinel-mutex.ts`](../../../tools/orchestrator-checks/cron-sentinel-mutex.ts) — which only catches **Otto-CLI peers**, not Lior. The |
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Recovery shard for the 3-tick autonomous-loop session.
Session summary
5 PRs merged: #3722 + #3729 + #3733 + #3734 + #3737. Two substrate drift catches (B-0506 + B-0530). One Copilot P1 markdown fix.
Lior contention named
Atomic-commit mitigation worked but multi-process race still has tail risk; documented for future-Otto.
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