# AD-524 Ship's Archive Build Report

**Date:** 2026-04-30
**Status:** Complete
**Prompt:** `prompts/ad-524-ships-archive.md`
**Builder:** GitHub Copilot Builder

## Summary

Implemented Ship's Archive as append-only cross-reset SQLite persistence outside the instance data directory. Added archive configuration, Oracle Tier 4 querying, startup initialization, shutdown cleanup, tests, tracker updates, and a decision record.

## Files Changed

- `src/probos/knowledge/archive_store.py`
  - Added `ArchiveEntry` and `ArchiveStore`.
- `src/probos/config.py`
  - Added `ArchiveConfig` and `SystemConfig.archive`.
- `src/probos/cognitive/oracle_service.py`
  - Added `archive_store` constructor injection and archive Tier 4 query support.
- `src/probos/startup/cognitive_services.py`
  - Initialized `ArchiveStore`, resolved the platform archive path outside `data_dir`, and passed the store to `OracleService`.
- `src/probos/startup/results.py`, `src/probos/runtime.py`, `src/probos/startup/shutdown.py`
  - Carried the archive store reference through startup and closed it during shutdown.
- `tests/test_ad524_ships_archive.py`
  - Added 9 focused tests.
- `PROGRESS.md`, `docs/development/roadmap.md`, `DECISIONS.md`
  - Updated AD-524 tracking and decision log.
- `prompts/build-reports/ad-524-build.md`
  - Added this build report.

## Sections Implemented

- `### Section 1: Create ArchiveStore — cross-reset SQLite persistence`
  - Implemented append-only archive storage in `src/probos/knowledge/archive_store.py`.
- `### Section 2: Add ArchiveConfig to SystemConfig`
  - Implemented `ArchiveConfig` and `SystemConfig.archive`.
- `### Section 3: Integrate Archive as Oracle Tier 4`
  - Added `archive_store` to `OracleService.__init__`, default archive tier inclusion, and `_query_archive()`.
- `### Section 4: Wire ArchiveStore in startup`
  - Initialized archive storage during cognitive-services startup, passed it into Oracle, retained the reference on runtime, and closed it on shutdown.
- `## Tests`
  - Added 9 prompt-specified AD-524 tests.
- `## Tracking`
  - Updated `PROGRESS.md`, `docs/development/roadmap.md`, `DECISIONS.md`, and this build report.

## Post-Build Section Audit

- `### Section 1: Create ArchiveStore — cross-reset SQLite persistence` — complete; append, search, get_recent, count, initialize, and close are implemented with `ConnectionFactory`.
- `### Section 2: Add ArchiveConfig to SystemConfig` — complete; defaults are enabled with an empty runtime-resolved db path.
- `### Section 3: Integrate Archive as Oracle Tier 4` — complete; `OracleService.__init__` accepts `archive_store`, default tiers include archive, and archive results map to `OracleResult`.
- `### Section 4: Wire ArchiveStore in startup` — complete; startup resolves an archive path outside `data_dir`, initializes the store, injects it into Oracle, and shutdown closes it.
- `## Tests` — complete; 9 AD-524 tests pass.
- `## Tracking` — complete; trackers, decision log, and build report updated.

## Tests

- `d:/ProbOS/.venv/Scripts/pytest.exe tests/test_ad524_ships_archive.py -v -n 0`
  - Result: 9 passed.
- `d:/ProbOS/.venv/Scripts/pytest.exe tests/test_ad524_ships_archive.py tests/test_config.py tests/test_ad600_transactive_memory.py tests/test_memory_architecture.py -v -n 0`
  - Result: 55 passed.
- `d:/ProbOS/.venv/Scripts/pytest.exe tests/ -q -n 4 --dist=loadfile`
  - Result: 10246 passed, 18 skipped.

## Deviations

- Used the wave execution plan full-gate command `-n 4 --dist=loadfile` instead of the prompt's older `-n auto` acceptance text.
- Implemented runtime reference retention for shutdown because the archive store is created in the cognitive-services startup phase and must be available to `startup/shutdown.py`.
