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…per-tick shards (loop-tick-history.md NEEDS_HUMAN_DECISION → SAFE) Implements maintainer decision option (c) for `docs/hygiene-history/loop-tick-history.md`: migrate AceHack-only legacy tick rows into modern Option B per-tick shard files under `docs/hygiene-history/ticks/2026/04/28/` so AceHack-side factory tick evidence is durably preserved before hard-reset. Migration Preflight Ledger (Amara 2026-04-29 discipline) — content-hash row identity, not timestamp identity: | timestamp | acehack_row_hash | lfg_row_hash | bucket | shard_action | |---|---|---|---|---| | 2026-04-21T17:28 | d1d54bae860f | d1d54bae860f | COMMON_IDENTICAL_REORDERED | no shard write | | 2026-04-28T04:08 | f23a8b7cdb2d | — | ACEHACK_ONLY | create 0408Z.md | | 2026-04-28T04:18 | 49461a7d509b | — | ACEHACK_ONLY | create 0418Z.md | | 2026-04-28T04:33 | e48763be9831 | — | ACEHACK_ONLY | create 0433Z.md | | 2026-04-28T05:01 | 0fd03048c2fd | — | ACEHACK_ONLY | create 0501Z.md | | 2026-04-28T05:23 | f2263f3742fe | — | ACEHACK_ONLY | create 0523Z.md | | 2026-04-28T05:44 | 6d0979994589 | — | ACEHACK_ONLY | create 0544Z.md | | 2026-04-28T05:50 | e7c8825f26e6 | — | ACEHACK_ONLY | create 0550Z.md | | 2026-04-28T07:15 | 9756cee23c0d | — | ACEHACK_ONLY | create 0715Z.md | | 2026-04-28T08:50 | d39082ee5264 | — | ACEHACK_ONLY | create 0850Z.md | The preflight ledger immediately paid for itself: caught a misclassification of `2026-04-21T17:28` as SAME_TIMESTAMP_DRIFT (during #838 prose-only classification). Content-hash comparison reveals matching row hashes on both forks — the row is COMMON_IDENTICAL_REORDERED (same content, different table position; the `+/-` diff pair was reorder, not drift). Migration scope shrank from 10 suspected to 9 actual shards. Ledger transition (post-merge atomic): - classified_safe_lines: 215 → 227 (+12 for loop-tick-history.md, now SAFE because content preserved as shards on LFG) - unsafe_lines: 12 → 0 - unclassified_lines: 46 (unchanged) - Arithmetic: 273 = 227 + 0 + 46 ✓ Decision-vs-resolution discipline (Amara 2026-04-29): in-force ledger state until this PR merges is `unsafe_lines = 12`; values above represent post-merge state, contingent on this PR landing. A plan is not a state change. Out of scope (separate follow-up): the 9 LFG-only legacy rows on the LFG side need their own migration to shards eventually, but that's not blocking 0/0/0 from the AceHack side and lives as a separate PR. Tick shard 1233Z appended for this work.
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…s to downstream composition + rollup sections Codex caught a real propagation defect in BOTH docs (same root pattern as the residual-list-drift Codex caught on #837 and the bucket-violation on #838 round 1): 1. CLASSIFICATION.md line 117: Batch 2 cell flipped to SAFE in the prior commit, but the Batch 2 rollup directly below still said "8 of 9 SAFE + 1 NEEDS_HUMAN_DECISION". Internal inconsistency — same table claiming two states. 2. active-trajectory.md line 173-186: ledger headline block updated to 227/0/46, but downstream "Composition of classified_safe_lines = 215" + "Composition of unsafe_lines = 12" sections still held pre-#839 values. Same contradiction class. Fix both by making the post-merge labeling explicit AND propagating the values: - active-trajectory.md: composition now says "= 227 (post-merge values, contingent on this PR landing — pre-merge in-force value is 215)" + adds an Option-(c) migration line item (+12 lines, loop-tick-history.md). The unsafe_lines composition now shows "(empty post-merge)" with the pre-merge state preserved as a separate paragraph. - CLASSIFICATION.md: rollup line preserves the historical fact ("Batch 2 result as of #838 merge: 8 of 9 SAFE + 1 NEEDS_HUMAN_DECISION") AND adds the post-option-(c)-migration result ("contingent on the migration PR landing: all 9 SAFE"). Per Amara's Decision-Resolution Guardrail (2026-04-29 packet 9): future-state ledger values must be labeled post-merge; current-state ledger values must remain visible until merge. Now applied consistently across all four affected sections (headline ledger + 2 composition sections + rollup line). Future-self check: every claim about "ledger says X" must be qualified by which-merge-state X is the value of. This is the same drift pattern as residual-list drift, just applied to ledger composition rather than residual file lists. Codex is consistently catching the "I updated A but didn't propagate to B and C" failure mode.
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April 29, 2026 12:39
Pull Request is not mergeable
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Codex P2 (12:36Z, both threads) addressed in cd8c720. Same root pattern Codex has consistently caught: "I updated A but didn't propagate to B and C." Fix propagates post-merge ledger values to downstream sections in both docs while preserving Decision-Resolution Guardrail discipline (future-state values explicitly labeled post-merge; pre-merge in-force values preserved). Affected sections:
This is an instance of Residual-Set Drift / Duplicated Ledger Drift applied to ledger composition rather than residual file lists. Same control: ledger owns counts; downstream prose must propagate or point at the live ledger. |
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Pull request overview
Migrates AceHack-only legacy autonomous-loop tick rows into the Option B per-tick shard format under docs/hygiene-history/ticks/2026/04/28/, and updates the 0/0/0 reconciliation ledger/docs to reflect the post-migration classification.
Changes:
- Adds 9 per-tick shard files for the AceHack-only legacy rows (2026-04-28 04:08 → 08:50).
- Adds a new tick shard capturing the option-(c) migration work (2026-04-29 12:33Z).
- Updates the trajectory + classification docs to record the option-(c) migration preflight ledger and the post-migration SAFE classification.
Reviewed changes
Copilot reviewed 12 out of 12 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| docs/hygiene-history/ticks/2026/04/29/1233Z.md | Adds a tick shard documenting the option-(c) migration work and ledger impact. |
| docs/hygiene-history/ticks/2026/04/28/0408Z.md | Adds migrated legacy tick row as an Option B shard. |
| docs/hygiene-history/ticks/2026/04/28/0418Z.md | Adds migrated legacy tick row as an Option B shard. |
| docs/hygiene-history/ticks/2026/04/28/0433Z.md | Adds migrated legacy tick row as an Option B shard. |
| docs/hygiene-history/ticks/2026/04/28/0501Z.md | Adds migrated legacy tick row as an Option B shard. |
| docs/hygiene-history/ticks/2026/04/28/0523Z.md | Adds migrated legacy tick row as an Option B shard. |
| docs/hygiene-history/ticks/2026/04/28/0544Z.md | Adds migrated legacy tick row as an Option B shard. |
| docs/hygiene-history/ticks/2026/04/28/0550Z.md | Adds migrated legacy tick row as an Option B shard. |
| docs/hygiene-history/ticks/2026/04/28/0715Z.md | Adds migrated legacy tick row as an Option B shard. |
| docs/hygiene-history/ticks/2026/04/28/0850Z.md | Adds migrated legacy tick row as an Option B shard. |
| docs/active-trajectory.md | Updates the ledger values and records the option-(c) migration preflight ledger in the trajectory narrative. |
| docs/0-0-0-readiness/CLASSIFICATION.md | Reclassifies loop-tick-history.md to SAFE post-migration and documents the migration evidence. |
…trictly non-predictive language
Copilot P2 (12:41Z, line 1 of tick shard): the shard committed alongside the option-(c) migration PR contained "Ledger update (post-PR-merge): classified_safe_lines 215→227 ..." which is post-merge ledger evidence inside an open PR — borderline Decision-Resolution Drift even with the "post-PR-merge" label.
Fix: rephrase to strictly conditional language ("If/when the migration PR merges, the ledger becomes ...") and explicitly preserve the in-force pre-merge state (215/12/46). Tick evidence is now non-predictive: the shard does not assert post-merge state as fact.
Threads 1 and 2 (CLASSIFICATION.md line 117 + active-trajectory.md line 146) were already addressed by cd8c720 (the post-merge labeling pass): Batch 2 rollup now distinguishes "as of #838 merge" vs "post-option-(c)-migration"; active-trajectory.md composition sections now use post-merge / pre-merge in-force labeling. Will resolve those threads pointing at cd8c720.
Per Amara 2026-04-29 packet 10 (Derived-Rollup Drift): the failure pattern Codex keeps catching is the same family — primary value updated, derived rollup stale. Now consistently fixed across all four affected sections (headline ledger + 2 composition blocks + Batch 2 rollup + tick shard). Future-self check: every ledger-touching commit needs a derived-count consistency sweep before push.
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Three threads addressed:
The pattern Codex/Copilot keeps catching here is Derived-Rollup Drift (per Amara's 2026-04-29 naming): primary ledger value updated, derived rollup/composition still stale. Same family as Residual-Set Drift. Now fixed across all four affected sections (headline ledger + 2 composition blocks + Batch 2 rollup + tick shard) consistently labeled with post-merge / pre-merge in-force language. |
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…839 cleanup (if/when → in-force) (#840) Two pieces of work in this PR: 1. **Post-#839 cleanup** (per Amara packet 11/12 + Evidence-Tense Discipline): active-trajectory.md flips contingent language ("If/when... + Until that merge... + Decision-vs-resolution discipline applied: in-force ledger state until PR merges remains 12-unsafe") to in-force language ("in-force as of post-#839-merge"). #839 (option-(c) migration) merged at 2026-04-29T12:46:29Z (commit 76785e3); the 9 ACEHACK_ONLY tick rows are durably preserved as Option B shards under docs/hygiene-history/ticks/2026/04/28/ on LFG main, so loop-tick-history.md classifies SAFE_TO_RESET_LFG_SUPERSEDES (was NEEDS_HUMAN_DECISION). 2. **Batch 3a classification** (1 file, 8 lines): memory/project_laptop_only_source_integration_scratch_sqlsharp_features_or_designs_high_priority_2026_04_27.md → SAFE_TO_RESET_LFG_SUPERSEDES. Named evidence: AceHack-only +8 lines drop the **closed-list-scope qualifier** from the ../scratch / ../SQLSharp zero-matches completion criterion. AceHack version: "git grep -- '../scratch' returns zero matches". LFG version: "git grep -- '../scratch' returns zero matches *outside the closed-list history surfaces* (memory/**, docs/BACKLOG.md, ...)". Without the qualifier, the criterion is technically unsatisfiable — grep would always hit references on the closed-list surfaces themselves (this very file is one). LFG version is rule-compliant + accurate; AceHack is a simplification regression. **Ledger headline NOT touched in this PR** (stays 227/0/46 — current in-force pre-Batch-3a-merge). Per decision-vs-resolution discipline: ledger flip 227→235 / 46→38 lands atomically with Batch 3a's merge, in a small follow-up PR. Avoids re-introducing contingent prose Codex flagged twice on prior PRs. **Remaining unclassified after Batch 3a (38 lines / 1 file)**: .github/workflows/budget-snapshot-cadence.yml — has real behavioral divergence (auto-merge policy + Scorecard TokenPermissionsID security fix) requiring explicit Level-1 buddy review per the Second-Agent Design Review Gate (Amara 2026-04-29 packet 10) before classification. Tick shard 1248Z appended for this work.
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Summary
Implements the maintainer (c) decision for
docs/hygiene-history/loop-tick-history.mdper the multi-AI review packet 2026-04-29. Migrates 9 AceHack-only legacy tick rows into modern Option B per-tick shard files underdocs/hygiene-history/ticks/2026/04/28/so AceHack-side factory tick evidence is durably preserved on LFG before hard-reset.After this lands,
loop-tick-history.mdreclassifies from NEEDS_HUMAN_DECISION → SAFE_TO_RESET_LFG_SUPERSEDES (unsafe_lines: 12 → 0).Migration Preflight Ledger
Per the Migration Preflight Ledger discipline (Amara 2026-04-29 packet 6): no shard migration starts until every candidate row has hash + bucket + destination/no-op-reason. Built via content-based identity (12-char SHA-256 prefix over normalized full-row content), not timestamp identity.
d1d54bae860fd1d54bae860ff23a8b7cdb2d0408Z.md49461a7d509b0418Z.mde48763be98310433Z.md0fd03048c2fd0501Z.mdf2263f3742fe0523Z.md6d09799945890544Z.mde7c8825f26e60550Z.md9756cee23c0d0715Z.mdd39082ee52640850Z.mdPreflight ledger paid for itself instantly: caught a misclassification of
2026-04-21T17:28as SAME_TIMESTAMP_DRIFT (from #838 prose-only classification). Content-hash comparison reveals matching row hashes on both forks — the row isCOMMON_IDENTICAL_REORDERED(same row content, different table position; the+/-diff pair was reorder, not drift). Migration scope shrank from 10 suspected to 9 actual shards. No fake1728Z-02.mdshard created.Ledger transition (atomic on merge)
potential_loss_linesclassified_safe_linesloop-tick-history.md)unsafe_linesunclassified_linesArithmetic sanity check:
273 = 227 + 0 + 46✓.Decision-vs-resolution discipline (Amara 2026-04-29 packet 7): in-force ledger state until this PR merges is
unsafe_lines = 12. The post-merge values land atomically with the shards. A plan is not a state change.What this PR does NOT do
loop-tick-history.md. AceHack-side rows stay in the legacy table. Hard-reset of the table on AceHack is content-preservation-safe because the rows are now durable on LFG as shards.2026-04-27T23:58,2026-04-28T14:43/17:47/19:41/19:50,2026-04-29T00:34/00:53/00:58/01:00). Out of scope; separate LFG-side cleanup PR; not blocking 0/0/0 from the AceHack side.unsafe_lines = 0andunclassified_lines = 0.Test plan
+line in this PR is a verbatim AceHack-side row fromdocs/hygiene-history/loop-tick-history.md2026/04/28/content (directory was empty pre-merge)273 = 227 + 0 + 46🤖 Generated with Claude Code