pluriwave/openspec/changes/archive/2026-06-30-pre-notice-live-countdown/archive-report.md

# Archive Report: Pre-notice Live Countdown

**Date**: 2026-06-30
**Change**: pre-notice-live-countdown
**Artifact Store**: hybrid (openspec + engram)
**Final Verdict**: PASS WITH WARNINGS (0 CRITICAL)

## Source Artifacts (Engram Observation IDs)

All source artifacts were read from engram to preserve traceability:

| Artifact | Observation ID | Topic Key | Retrieved |
|----------|---|---|---|
| Proposal | 2257 | sdd/pre-notice-live-countdown/proposal | ✓ |
| Specification | 2258 | sdd/pre-notice-live-countdown/spec | ✓ |
| Design | 2259 | sdd/pre-notice-live-countdown/design | ✓ |
| Tasks | 2260 | sdd/pre-notice-live-countdown/tasks | ✓ |
| Apply Progress | 2261 | sdd/pre-notice-live-countdown/apply-progress | ✓ |
| Verify Report | 2262 | sdd/pre-notice-live-countdown/verify-report | ✓ |

## Archive Actions Performed

### 1. Main Spec Merge

**Domain**: alarm-pre-notice-countdown

**Action**: NEW spec created (no prior spec in main openspec/specs/ directory)

**Target**: `openspec/specs/alarm-pre-notice-countdown/spec.md`

**Content**: Full 8-requirement spec with 16 scenarios, copied directly from delta spec (not a delta merge).

### 2. Change Folder Moved to Archive

**Source**: `openspec/changes/pre-notice-live-countdown/`
**Target**: `openspec/changes/archive/2026-06-30-pre-notice-live-countdown/`

**Contents archived**:
- explore.md
- proposal.md
- design.md
- tasks.md
- verify-report.md
- specs/alarm-pre-notice-countdown/spec.md
- state.yaml (created during archive)
- archive-report.md (this file)

### 3. Verification of Archive

- [x] Main spec created at `openspec/specs/alarm-pre-notice-countdown/spec.md`
- [x] Change folder successfully moved to archive with ISO-format date prefix
- [x] Archive contains all required artifacts (proposal, specs, design, tasks, verify-report)
- [x] Active changes directory no longer contains this change
- [x] Archive folder structure preserved: `specs/alarm-pre-notice-countdown/spec.md` inside archive

## Change Summary

**Scope**: Kotlin-only (AlarmScheduler.kt, PluriWaveAlarmReceiver.kt)

**Implementation Status**: COMPLETE (all 4 in-scope sections)

**Key Changes**:
- Added `armNextPreNoticeCountdownTick(id, triggerAtMillis, title, snoozeMinutes, occurrenceAtMillis, remaining)` to AlarmScheduler.kt
- Added `cancelPreNoticeCountdown(id)` to AlarmScheduler.kt (public, mirrors cancelSnoozeCountdown)
- Wired 5-site cancellation: cancelAlarm, scheduleSpec no-trigger, schedulePreNotice snooze-transition, ACTION_SKIP_NEXT, ACTION_POSTPONE_NEXT
- Modified receiver ACTION_PRE_NOTICE to re-arm after posting
- Switched computeRemainingMinutes from floor to ceil semantics

**Lines Changed**: 91 total (AlarmScheduler.kt +70/-2, PluriWaveAlarmReceiver.kt +21/-3)

**Verification Result**: PASS WITH WARNINGS

| Item | Status | Notes |
|------|--------|-------|
| Section 1: AlarmScheduler core | PASS | Both functions present, public, correct formula (slot 9 via 31*hash+slot) |
| Section 2: 3 scheduler cancellation sites | PASS | All 3 confirmed: cancelAlarm, scheduleSpec no-trigger, schedulePreNotice snooze-transition |
| Section 3: Receiver re-arm + ceil + 2 cancellation sites | PASS | Single remaining-compute, correct cancel ordering before reschedule |
| Section 4: 5-site cross-check | PASS | grep confirms exactly 6 matches (1 declaration + 5 call sites) |
| Section 5: Manual/device QA | NOT RUN | Explicitly out of automated scope, recommended follow-up |
| flutter analyze | PASS | No issues found, Kotlin-only claim confirmed |
| Spec compliance (14/14 scenarios) | PASS | All statically-verifiable scenarios pass |

**Critical Correctness Gate**: Verified that both `armNextPreNoticeCountdownTick` and `cancelPreNoticeCountdown` use `requestCode(id, 9)` resolving through AlarmScheduler's `31*hash+slot` formula, NOT the receiver's `47*hash+slot` formula. This was the design's top identified risk; it does NOT manifest.

## Issues Summary

**CRITICAL**: None

**WARNINGS**:
1. Manual/device QA (tasks section 5.1-5.5) not executed. This covers: happy-path 29-to-1 countdown, self-stop at final minute, skip/postpone/snooze-transition teardown via adb dumpsys alarm, Doze-delayed jump behavior, snooze-countdown regression check. Recommend running before/shortly after merge.

**SUGGESTIONS**:
1. ceilMinutes formula duplicated (AlarmScheduler private vs receiver inline). Documented tradeoff to avoid public surface expansion. Low risk (simple one-liners, now textually identical). Consider shared helper if a third consumer appears.

## Rollback Plan

Revert the two Kotlin files (`AlarmScheduler.kt`, `PluriWaveAlarmReceiver.kt`) to prior commit. No schema/l10n/Dart/config changes accompany this change → clean single-commit revert, zero migration. Pre-notice falls back to single-shot behavior.

## Source of Truth Updated

The following spec now reflects the new pre-notice-live-countdown behavior:
- `openspec/specs/alarm-pre-notice-countdown/spec.md` (NEW)

This spec captures all 8 requirements (First Post, Per-Minute Tick Re-Arm, Self-Healing, Self-Stop, Consistent Rounding, Tick Cancellation, Notification Reuse/Mutual Exclusivity, covering 16 scenarios total).

## SDD Cycle Complete

The pre-notice-live-countdown change has been:
1. **Proposed** (intent, scope, approach, risks)
2. **Specified** (8 requirements with 16 scenarios, all statically-verifiable)
3. **Designed** (technical approach, 5-site cancellation pattern, requestCode slot allocation)
4. **Tasked** (4 implementation sections + 1 manual QA section, dependency DAG, review workload forecast)
5. **Applied** (all 4 in-scope sections implemented, flutter analyze clean, 91-line diff)
6. **Verified** (code-inspection verification, spec compliance matrix, design coherence check)
7. **Archived** (change folder moved, spec merged to main, archive report filed)

Ready for the next change.

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**Archived by**: sdd-archive executor
**Archive timestamp**: 2026-06-30 22:05:00 UTC
**Artifact store**: hybrid (openspec files + engram topic_key: sdd/pre-notice-live-countdown/archive-report)