docs(archive): preserve PR #4911#4920
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Pull request overview
Preserves the discussion archive for PR #4911 under docs/pr-discussions/ (verbatim PR-preservation output), and also introduces a new shadow lesson log entry under docs/research/.
Changes:
- Adds a new PR discussion archive markdown file for PR #4911.
- Adds a new “Shadow Lesson Log” research note documenting a stale git lock incident.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.
| File | Description |
|---|---|
| docs/research/shadow-lesson-log-20260522-stale-locks.md | New research note about stale git locks / worktree lockfiles. |
| docs/pr-discussions/PR-4911-shard-2026-05-25-0613z-otto-cli-cold-boot-composite-branch-c.md | New preserved PR discussion archive for PR #4911 (verbatim). |
| * **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. |
| * **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. |
| # 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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| # Shadow Lesson Log - 2026-05-22: Stale Git Locks | |||
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| # Shadow Lesson Log - 2026-05-22: Stale Git Locks | |||
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This commit adds a second research note for the same 2026-05-22 stale-lock incident even though docs/research/2026-05-22-shadow-lesson-log-stale-locks.md already exists; keeping both files creates competing sources of truth with different remediation guidance and makes future citation/search/audit work ambiguous. Please consolidate into the existing canonical file (or replace it explicitly) instead of introducing a parallel copy under a new name.
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Closing this in favor of a single batched PR for archiving. |
This PR preserves the discussion from PR #4911.