jetpack_search_custom_taxonomy_mapMap custom taxonomy slugs to a reserved Jetpack Search index slot. Default is an empty array, which leaves the slot-mapping feature entirely off — no slot taxonomies registered, no auto-mirror, no query rewrite. A site enables the feature by returning a non-empty map from this filter.
jetpack_scan_page_initializedFires once the Jetpack Scan package has wired its hooks.
jetpack_connection_abilities_managerFilters the Connection_Manager instance used by the Connection abilities. Tests inject a partial mock here; production callers should leave the default. The filter callback receives the package-default instance and must return a Connection_Manager — non-Manager returns are discarded.
jetpack_connection_site_health_badge_labelFilters the badge label shown in WordPress Site Health for connection tests.
jetpack_connection_support_urlFilters the Jetpack support URL used in connection health tests.
jetpack_connection_reconnect_urlFilters the URL used to reconnect the Jetpack connection.
jetpack_backup_abilities_should_loadFilters whether the Jetpack Backup abilities should register on this site. Defaults to `My_JetpackProductsBackup::is_active()`.
jetpack_seo_initFires after the Jetpack SEO package is initialized.
jetpack_before_send_email_previewFires immediately before an email preview is dispatched to the current user. Useful for inspecting the post content with an external classifier (e.g. an LLM-based content moderator) or for logging outbound previews. Fires after the subscriber has been resolved, so handlers receive a post that is about to be sent.
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