Filters whether the Jetpack Backup abilities should register on this site. Defaults to `My_JetpackProductsBackup::is_active()`.
jetpack_backup_abilities_should_load
jetpack_backup_abilities_should_load-
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action jetpack_seo_initFires after the Jetpack SEO package is initialized.
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action 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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filter jetpack_send_email_preview_akismet_valuesFilter the values sent to Akismet when checking an email preview.
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filter jetpack_top_posts_item_titleAllows modifying the title of each individual post returned by the Top Posts helper. Applies to both the Top Posts block’s front-end output and the REST response used by the block editor preview.
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filter jetpack_block_notes_enabledTemporarily disabled while we investigate expensive API calls triggered by has_paid_ai_plan() on every Gutenberg page load for self-hosted sites. Filter allows tests and development to re-enable.
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action jetpack_activity_log_initializedFires once the Jetpack Activity Log package has wired its hooks.
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action jetpack_external_storage_initFires before the first external storage read. Use this hook to register your storage provider via External_Storage::register_provider(). This fires after the connection package classes are loaded but before any connection status checks read from external storage. Useful for mu-plugins that load before the plugin providing External_Storage, since add_action() does not require the action or any classes to exist at hook-registration time.
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action jetpack_external_storage_provider_registeredFires after an external storage provider is registered. This allows dependent systems (like the connection status cache in Manager) to invalidate state that may have been computed before the provider was available.
Jetpack Developer Resources 