# Work Log: chore-backlog-tracker-sync

## Header

- Branch: `chore/backlog-tracker-sync`
- Classification: `quick-win`
- Classified by: `Claude (Fable 5)`
- Frozen: `true`
- Created Date: `2026-06-10`
- Owner: `claude`
- Guardrails Mode: `Quick`
- Current Phase: `ship`
- Checkpoint SHA: `0e030ba`
- Recommended Skills: `verification-before-completion (auto)`
- Primary Domain Snapshot: `none`
- SSoT Sequence: `48`

---

## Session Info

- Agent: Claude (Fable 5)
- Session: 2026-06-10
- Platform: Claude Code (Windows)
- Guardrails loaded: skipped (quick-win) + §13 heading-scoped read (governance-path edit: _product-backlog.md / SSoT — per bootstrap §0 exemption)
- Override: none

## Drift Log

- Skip Attempt: NO
- Gate Fail Reason: N/A
- Token Leak: NO

---

## Task Description

- Strict self-assessment follow-up (user-directed: verify suspected problems are real before fixing). Ledger hygiene: backlog↔tracker sync + Ship History cap enforcement.
- Verification-first results: 5 of 6 suspected drift rows were FALSE ALARMS (issues closed-premature with explicit "row remains as future direction" — by design; made visible via legend note). Real defects: row #48 desynced from already-implemented closure (#154); open issue #193 missing a backlog row; Ship History at 37 entries vs ship.md's 10-entry rotation rule (long-unenforced, incl. 4 added today).
- §13 Deletion-First compliance: this change is net-NEGATIVE on the always-loaded surface by ~229 lines (SSoT 398→169) — compaction IS the deletion.

## Plan

- _product-backlog.md: row #48 → Cancelled→archive (with desync note); +row #70 (issue #193); legend note for closed-premature future-direction rows.
- current_state.md: rotate 28 Ship History entries to archive/ship-history-2026.md (newest-archived first, verbatim per ship.md; relative-link M8 scan clean); cap at 10 incl. this ship's entry; Seq 49. Guarded write.
- Rollback: revert PR.
- Confidence: 95% — all three defects verified against primary sources (issue closure comments, ship.md rule text, entry count).

## Phase Sequence

- bootstrap
- plan
- implement
- ship

## External References

- Issue closure rationales #142/#144/#148/#149/#150 (future-direction) · #154 (already-implemented) · open #193
- ship.md §State Update & Archival ("If Ship History exceeds 10 entries, archive older entries")

## Known Risk

- none material; archive rotation is verbatim append-only. Rollback = revert PR.

## Conflict Resolution

none

## Skill Notes

none

## Phase Summary

- bootstrap: quick-win; 6 suspected drifts probed — 5 false alarms (by-design), 3 real defects confirmed (row #48, missing #193 row, Ship History 37>10). ⚡ ACX
- implement: backlog rows fixed + legend; 28 entries rotated; SSoT 398→169 lines; guarded write Seq 49. ⚡ ACX
- ship: validators fail=0 both platforms; worklog archived; PR on green CI. ⚡ ACX

## Gate Evidence

- Gate: bootstrap | Verdict: PASS | Classification: quick-win | Timestamp: 2026-06-10T18:00:00+08:00
- Gate: plan | Verdict: PASS | Classification: quick-win | Timestamp: 2026-06-10T18:05:00+08:00
- Gate: implement | Verdict: PASS | Classification: quick-win | Timestamp: 2026-06-10T18:30:00+08:00
- Gate: ship | Verdict: PASS | Classification: quick-win | Timestamp: 2026-06-10T18:40:00+08:00

## Evidence

- Probe: `gh issue view 142/144/148/149/150` closures all read "the backlog row remains as a future direction" → false-alarm verdict; `#154` closure = "already-implemented" → real desync.
- `grep -c "^### Ship-" current_state.md` 37 → 10 after rotation; archive ship-history-2026.md 7 → 35 entries; relative-link scan over moved block: 0 hits.
- `bash validate.sh` → pass=101 warn=9 fail=0; `validate.ps1` parity run pre-PR.
- Before/after: SSoT 398 → 169 lines (every bootstrap reads this file).
