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shard(tick): 1301Z-01 — drift recalibration per Codex P2 #3467

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Merged
AceHack merged 3 commits into from
May 15, 2026
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shard(tick): 1301Z-01 — drift recalibration per Codex P2 #3467

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098f199
shard(tick): 1301Z-01 — drift recalibration per Codex P2 catch on PR …
AceHack May 15, 2026
e2ee6a4
fix(shard): close (PR TBD) → (PR #3467)
AceHack May 15, 2026
7fe5553
fix(shard): col1 13:02→13:01:56 to match filename minute (Codex P2 + …
AceHack May 15, 2026
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8 changes: 8 additions & 0 deletions docs/hygiene-history/ticks/2026/05/15/1301Z-01.md
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Original file line number Diff line number Diff line change
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| 2026-05-15T13:01:56Z | claude-opus-4-7 | 596e842c | shard: drift recalibration — filename = actual `date -u` going forward | (PR #3467) | substantive Codex catch |

# Tick 1301Z-01

- **Discipline fix**: Codex P2 catch on PR #3465 — shard filenames had drifted ahead of actual UTC commit-time (e.g., `1309Z.md` committed at 12:57Z). Going forward filename source = `date -u +%H%MZ` at write-time, NOT planned wakeup-tick label.
- Current actual UTC 13:01:56Z; previous-tick label `1309Z` was ~8min ahead of real time. Using `1301Z-01.md` per shard-README disambiguation rule because `1301Z.md` already exists on main from earlier today.
- PR #3465 (mislabeled 1305Z shard) + PR #3466 (mislabeled 1309Z): auto-merge still armed; filenames preserved as-is on main. Honest tradeoff — the legacy-table generator sorts by parsed timestamp prefix per shard README, so those drifted prefixes will still produce a slightly out-of-order projection until/unless they are renamed. A follow-up backlog row for a rename pass is in scope; for this tick the priority is fixing the discipline going forward.
- Cron sentinel `596e842c` armed.
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