# App schema domains Declare support for well-known actions and content by applying system-defined schemas to your app intents, app entities, and app enumerations. ## Overview Help the system correctly understand your app and its intents, entities, and enumerations by conforming your types to system-defined schemas whenever possible. Each schema tells the system how to interpret one of your app’s types. For example, when an email app conforms one of its intents to the `.mail.createDraft` schema, the system knows it can invoke that intent to create a new email draft in that app. This information enhances the system’s understanding of your app’s content and helps facilitate interactions with Siri, Apple Intelligence, and other system features. To apply a schema to one of your types, add one of the following macros ahead of its declaration: - [`AppIntent(schema:)`](/documentation/AppIntents/AppIntent(schema:)) - [`AppEntity(schema:)`](/documentation/AppIntents/AppEntity(schema:)) - [`AppEnum(schema:)`](/documentation/AppIntents/AppEnum(schema:)) When you build your app, these macros expand and map the type to the schema you assign to it. > Tip: Increase the number of your app’s actions that people can invoke with Apple Intelligence and Siri by adopting optional schemas. ## Topics ### Essentials [Making actions and content discoverable by Apple Intelligence](/documentation/AppIntents/making-actions-and-content-discoverable-by-apple-intelligence) Equip the system so that Siri can work with your app by adding specific schemas from relevant domains. ### Markup macros [`AppIntent(schema:)`](/documentation/AppIntents/AppIntent(schema:)) A Swift macro you use to make sure your app intent conforms to an schema. [`AppEntity(schema:)`](/documentation/AppIntents/AppEntity(schema:)) A Swift macro you use to make sure your app entity conforms to a schema. [`AppEnum(schema:)`](/documentation/AppIntents/AppEnum(schema:)) A Swift macro you use to make sure your app enum conforms to a schema. ### Primary domains Adopt schemas in these domains so your app works with Apple Intelligence and Siri. [Audio](/documentation/AppIntents/app-schema-domain-audio) Make your audio app’s actions available to Apple Intelligence and Siri by adopting schemas for common audio playback actions. [Calendar](/documentation/AppIntents/app-schema-domain-calendar) Make your calendar app’s actions available to Apple Intelligence and Siri by adopting schemas for common calendar actions. [Camera](/documentation/AppIntents/app-schema-domain-camera) Make your camera app’s actions available to Apple Intelligence and Siri by adopting schemas for common camera actions. [Clock](/documentation/AppIntents/app-schema-domain-clock) Make your clock app’s actions available to Apple Intelligence and Siri by adopting schemas for common alarm and timer actions. [Files](/documentation/AppIntents/app-schema-domain-files) Make your file-management app’s actions available to Apple Intelligence and Siri by adopting schemas for common file actions. [Mail](/documentation/AppIntents/app-schema-domain-mail) Make your email app’s actions available to Apple Intelligence and Siri by adopting schemas for common email actions. [Maps](/documentation/AppIntents/app-schema-domain-maps) Make your navigation app’s actions available to Apple Intelligence and Siri by adopting schemas for common navigation actions. [Messages](/documentation/AppIntents/app-schema-domain-messages) Make your messaging app’s actions available to Apple Intelligence and Siri by adopting schemas for common messaging actions. [Notes](/documentation/AppIntents/app-schema-domain-notes) Make your note-taking app’s actions available to Apple Intelligence and Siri by adopting schemas for common note actions. [Phone](/documentation/AppIntents/app-schema-domain-phone) Make your phone app’s actions available to Apple Intelligence and Siri by adopting schemas for calling actions. [Photos](/documentation/AppIntents/app-schema-domain-photos) Make your photo and video app’s actions available to Apple Intelligence and Siri by adopting schemas for common photo and video actions. [Reminders](/documentation/AppIntents/app-schema-domain-reminders) Make your reminder app’s actions available to Apple Intelligence and Siri by adopting schemas for common reminder actions. [System and in-app search](/documentation/AppIntents/app-schema-domain-system-and-in-app-search) Make your app’s actions available to Apple Intelligence and Siri by adopting schemas for in-app search and content access. ### Single-purpose domains Each domain in this group integrates your app with a specific system surface outside of Siri. [Assistant](/documentation/AppIntents/app-schema-domain-assistant) Enable people in Japan to launch your voice-based conversational app from the side button of iPhone. [Visual intelligence](/documentation/AppIntents/app-schema-domain-visual-intelligence) Display search results from your app when people point the camera at relevant content. ### Shortcuts-specific domains Schemas in these domains work with the Shortcuts app but don’t make your conforming types discoverable by Apple Intelligence and Siri. [Books](/documentation/AppIntents/app-schema-domain-books) Make your ebook reader’s actions available in the Shortcuts app by adopting schemas for common reading actions. [Browser](/documentation/AppIntents/app-schema-domain-browser) Make your web browser’s actions available in the Shortcuts app by adopting schemas for common browsing actions. [Journaling](/documentation/AppIntents/app-schema-domain-journaling) Make your journaling app’s actions available in the Shortcuts app by adopting schemas for journal-entry management. [Presentation](/documentation/AppIntents/app-schema-domain-presentation) Make your presentation app’s actions available in the Shortcuts app by adopting schemas for common presentation actions. [Reader](/documentation/AppIntents/app-schema-domain-reader) Make your document reader’s actions available in the Shortcuts app by adopting schemas for document viewing and manipulation. [Spreadsheet](/documentation/AppIntents/app-schema-domain-spreadsheet) Make your spreadsheet app’s actions available in the Shortcuts app by adopting schemas for spreadsheet management. [Whiteboard](/documentation/AppIntents/app-schema-domain-whiteboard) Make your whiteboard app’s actions available in the Shortcuts app by adopting schemas for common whiteboard actions. [Word processor](/documentation/AppIntents/app-schema-domain-word-processor) Make your word processor’s actions available in the Shortcuts app by adopting schemas for document editing. ### Base types Types that provide the infrastructure for domain schemas and that your app doesn’t need to directly adopt. [App schema base types](/documentation/AppIntents/app-schema-base-types) Types that provide the underlying functionality for app schemas. --- Copyright © 2026 Apple Inc. 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