- docs/HIVEPRESS-COVERAGE.md: read-only inventory on dev36 of the hp_* meta each post type holds (registered or not, queried or not), where the extensions keep their data (comments, taxonomies, user meta) and the query shapes a front-end crawl produced.
- Conclusion for plan D04: attribute auto-registration is not needed now — every meta key HivePress queries is registered, select attributes are taxonomies, and the unregistered keys written (hp_due_date, hp_availability, hp_warranty) are never queried; revisit for sites that add filterable or sortable number / date attributes. README links it.
- PR: PR-083
