docs(archive): preserve PR #4908#4923
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Pull request overview
Preserves the discussion content from PR #4908 by adding a new docs/pr-discussions/ archive entry, and also adds a new shadow lesson log in docs/research/ about a stale git lock incident.
Changes:
- Add archived PR discussion markdown for PR #4908 under
docs/pr-discussions/. - Add a new
docs/research/shadow lesson log documenting stale git lock files and proposed mitigations.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
| docs/research/shadow-lesson-log-20260522-stale-locks.md | Adds a new research/lesson-log entry about stale git locks and follow-up actions. |
| docs/pr-discussions/PR-4908-shard-2026-05-25-0407z-19th-dotgit-anchor-6th-0-stuck-proc-r.md | Adds the preserved PR #4908 discussion archive with YAML frontmatter metadata. |
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| # Shadow Lesson Log - 2026-05-22: Stale Git Locks | ||
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| ## Event | ||
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| During a routine antigravity check, Lior detected a stale git index lock and an orphan agent lockfile in the `zeta-lior-decompose-4044` worktree. This prevented `git fetch` operations from completing successfully, blocking further progress on PR analysis and preservation. |
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| * **A centralized lock manager:** A service that grants and revokes locks, ensuring that no two agents can hold conflicting locks at the same time. | ||
| * **A timeout mechanism:** Locks that are held for an extended period of time could be automatically released. | ||
| * **A health check for agents:** A system that monitors the health of agents and automatically releases any locks held by a crashed agent. | ||
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| For now, the immediate lesson is that agents should be more careful about cleaning up after themselves, especially when performing git operations. | ||
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| ## Action Items | ||
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| * Manually remove the stale lock files from the `zeta-lior-decompose-4044` worktree. | ||
| * Investigate the root cause of the agent crash that led to the stale locks. | ||
| * Begin research and design for a more robust git lock management system. |
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| * **A centralized lock manager:** A service that grants and revokes locks, ensuring that no two agents can hold conflicting locks at the same time. | ||
| * **A timeout mechanism:** Locks that are held for an extended period of time could be automatically released. | ||
| * **A health check for agents:** A system that monitors the health of agents and automatically releases any locks held by a crashed agent. | ||
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| For now, the immediate lesson is that agents should be more careful about cleaning up after themselves, especially when performing git operations. | ||
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| ## Action Items | ||
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| * Manually remove the stale lock files from the `zeta-lior-decompose-4044` worktree. | ||
| * Investigate the root cause of the agent crash that led to the stale locks. | ||
| * Begin research and design for a more robust git lock management system. |
Member
Author
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Closing this in favor of a single batched PR for archiving. |
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This PR preserves the discussion from PR #4908.