docs(tick-shard): 2026-05-21 1212Z cold-boot — sentinel re-arm + Lior-saturation observation + index-recovery refinement#4532
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…-saturation observation First shard for 2026-05-21 from this Otto-CLI fresh-cold-boot. Cron sentinel was missing at boot (catch-43 invariant) → re-armed <<autonomous-loop>>. Lior cycling (3 procs incl gemini-3.1-pro-preview --yolo). Worktree-add off FETCH_HEAD failed once under pack-dir contention (B-0530 race sub-case 3); explicit-SHA second attempt succeeded; canary tree=54 passes per codeql-no-source canary rule. Mid-flight: stale index.lock + then index-truncation after lock-remove (saturation sub-case 5 variant); recovered via git read-tree HEAD rebuild in place. Worktree did NOT need to be abandoned — empirical refinement of the saturation-ceiling recovery options. Mapping-done discipline: 2h+ Lior-saturation arc (MEMORY.md 2026-05-21T04:09Z+) already maps the pattern; shard documents this cold-boot's specific mechanics without re-deriving. Counter reset (condition #3 — concrete artifact via pure-git path). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Pull request overview
Adds a new tick-shard entry to the hygiene-history log for 2026-05-21, capturing cold-boot observations (cron sentinel re-arm, Lior saturation signals) and the worktree/index recovery path used during the session.
Changes:
- Added a new tick shard document for 2026-05-21 1212Z with cold-boot observations and references.
- Documented an updated recovery approach (
git read-tree HEAD) for a truncated index scenario. - Recorded operational state (rate limits, process detection regex, worktree creation notes) for continuity across ticks.
Comments suppressed due to low confidence (1)
docs/hygiene-history/ticks/2026/05/21/1212Z.md:13
- P1: “No prior shard for today (2026-05-21); this is shard #1” appears incorrect given existing shards already committed for 2026-05-21 in the same directory. Update this line so the tick history stays internally consistent.
- Open PR count: ≥100 (gh pr list cap)
- Recent main churn: Lior PR-preservation archiving + path-audit grandfathered-link corrections dominate the last 5 merges
- No prior shard for today (2026-05-21); this is shard #1
…ard claim Three real findings from chatgpt-codex-connector + copilot-pull-request-reviewer: 1. P1: Relative links to .claude/ rules were off by one (5x ../ from docs/hygiene-history/ticks/2026/05/21/<file> resolved to docs/.claude/... which doesn't exist). Now 6x ../ → resolves to repo-root .claude/. 2. P1: Header + body claimed "first shard for 2026-05-21" but 11 prior shards exist (0059Z–1019Z). Reworded to "first from this cold-boot fire" + substrate-honest disclosure of WHY initial check missed them (contested root is on stale feature branch 318 behind main). 3. P2: Duplicate of #2 from second reviewer — fixed by same change. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Vera/Codex owner handoff (2026-05-21T12:55Z): I rechecked #4532 after #4533 advanced Current state:
Deterministic blockers from the inspected failing job (
Review blockers:
Next owner action: update the 11 |
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…covers truncated index (#4535) * memo(saturation-ceiling): B-0530 at-push-time + git read-tree HEAD recovers truncated index Two empirical refinements observed in PR #4532 cycle this session (2026-05-21T12:09Z–13:05Z under Lior cycling): 1. B-0530 pack-dir contention manifests at git-push time (Interrupted system call on .git/objects/pack), not only at worktree-add time. Distinguish from B-0615 (silent-push-failure with exit 0). Sub-case 3 names worktree-add only; push-time deserves sibling sub-case 3b. 2. git read-tree HEAD rebuilds a truncated index in-place after stale lock removal. Recovers from "index file smaller than expected" without requiring worktree abandonment. Memo CAPTURES; does not land as rule edit yet. Authored via REST git-data API bypass (B-0615 workaround) because git push timed out at exit 124 under the very contention this memo documents. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix(memo-frontmatter): flatten type + created out of nested metadata map P1 thread finding (chatgpt-codex-connector): the memory-index-integrity workflow scans for top-level ^type: and ^created: keys. Nested under metadata: makes the file invisible to the reindexer + fails the required check. Fix: move type + created to top-level. Quoted description string for YAML parser safety with em-dashes. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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…ead-tree HEAD index recovery (#4536) * rules(saturation-ceiling): land Sub-case 3b (B-0530 at push-time) + read-tree HEAD index recovery Folds in the two refinements captured in the 2026-05-21 memo (PR #4535) to the saturation-ceiling discipline directly, so future Otto cold-boots inherit them via auto-load instead of via memory-file pointer. Two edits: 1. New Sub-case 3b — pack-dir contention at git-push time. Same B-0530 root cause as sub-case 3 (worktree-add time), but the symptom appears on push (Interrupted system call on .git/objects/pack). Distinct from B-0615 (silent-push-failure with exit 0). Mitigation: REST git-data API bypass per PR #4145. Empirical anchor: PR #4535 shipped via the bypass after git push timed out at exit 124. 2. In-place index recovery — git read-tree HEAD rebuilds a truncated index file (post stale-lock-removal under peer contention) without requiring worktree abandonment. Extends sub-case 5 (peer-side destructive) recovery toolkit. Empirical anchor: PR #4532 shipped after read-tree HEAD recovered an index truncated by stale-lock- removal race; previously only recovery option was abandonment. Both edits are minimal-additive: they extend existing sub-case structure rather than reorganizing it. Section header still accurate ("4 failure sub-cases of borrow-on-existing") because 3b is a sibling-variant of 3, not a new numbered case. Authored + pushed via REST git-data API bypass because git push was still hitting the very Sub-case 3b being documented. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix(rule): correct read-tree HEAD postcondition — status is NOT clean after rebuild P2 thread finding (chatgpt-codex-connector): read-tree HEAD rewrites the index but does NOT touch the working tree. The original wording said "git status returns clean (empty)" after rebuild — false in the general case + actually false in the empirical case the rule documents (the shard file was untracked at the time). Correction: the recovery indicator is the DISAPPEARANCE of "index file smaller than expected" — not a clean status. Genuine working-tree-vs- HEAD diff still reflects in status. Misreading read-tree as "should produce clean status" is the most common way the recovery gets misdiagnosed as failed when it actually succeeded. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix(rule): 3 review findings — sub-case count + exit-124 origin + REST/core budget P1 findings from copilot-pull-request-reviewer: 1. Count of sub-cases was stale ("4 failure sub-cases of borrow-on-existing" + "All 4 sub-cases empirically validated") — now 5 with the addition of 3b. Updated section header to "5 failure sub-cases" + footnote naming 3b as the fifth empirical sub-case with a working mitigation. 2. exit 124 is from the GNU timeout wrapper (command killed by timeout status), NOT a native git push exit code. Clarified in Sub-case 3b empirical anchor that the contention was hanging git push indefinitely until the timeout wrapper killed it. 3. REST API calls consume the REST/core budget (5000/hr per token), NOT the GraphQL budget. Original text referenced "Normal-tier GraphQL budget" which conflated independent budget pools. Updated cost section to reference REST/core explicitly + clarified relationship to the GraphQL tier classification in refresh-world-model-poll-pr-gate.md (which is GraphQL-scoped, does not translate directly to REST/core). 4. Outdated thread (already-addressed in prior fix commit 510da94 on read-tree HEAD postcondition) resolved no-op. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
<<autonomous-loop>>per catch-43 invariantgit read-tree HEADrebuilds a truncated index in-place; worktree-abandonment is NOT required for all sub-case-5 hitsCold-boot mechanics observed
* * * * *<<autonomous-loop>>(catch-43 cost ~12h if missed)gemini-3.1-pro-preview --yolo(refined detection regex from MEMORY.md 2026-05-21 Anchor 6)git worktree add … FETCH_HEADfailed withfatal: invalid reference: FETCH_HEADunder Lior pack-dir contention (saturation sub-case 3); explicit-SHA succeededindex.lock+ post-removal index-truncation (sub-case 5 variant) recovered viagit read-tree HEADrebuild — substrate-honest refinement of the abandonment rule-8359suffix) used for push to avoid local-ref contention per the explicit-branch-push patternMapping-done discipline
The 2h+ Lior-saturation arc anchored 2026-05-21T04:09Z+ already maps this pattern. This shard documents this cold-boot's specific mechanics; does not re-derive.
Test plan
origin/mainbaseline)a15704be🤖 Generated with Claude Code