# AOC Normalization Removal Notes

_Last updated: 2025-10-29_

## Goal

Document follow-up actions for CONCELIER-CORE-AOC-19-004 as we unwind the final pieces of normalization from the ingestion/runtime path.

## Current Findings

- `AdvisoryRawService` and `MongoAdvisoryRawRepository` already preserve upstream ordering and duplicate aliases (trim-only). No additional code changes required there.
- Observation layers (`AdvisoryObservationFactory`, `AdvisoryObservationQueryService`) still canonicalise aliases, PURLs, CPEs, and references. These need to be relaxed so Policy/overlays receive raw linksets and can own dedupe logic.
- Linkset mapper continues to emit deterministic hints. We will keep the mapper but ensure observation output can surface both raw and canonical views for downstream services.

## Next Steps

1. Introduce a raw linkset projection alongside the existing canonical mapper so Policy Engine can choose which flavour to consume.
2. Update observation factory/query tests to assert duplicate handling and ordering with the relaxed projection.
3. Refresh docs (`docs/ingestion/aggregation-only-contract.md`) once behaviour lands to explain the “raw vs canonical linkset” split.
4. Coordinate with Policy Guild to validate consumers against the new raw projection before flipping defaults.