Apple Intelligence

Docs: https://developer.apple.com/documentation/appintents and https://developer.apple.com/apple-intelligence/. Custom generative features use foundation-models. On-device model files use core-ai.

• Apple Intelligence needs supported Apple silicon devices. Gate features on availability and keep a non-AI path.
• Prefer building from an Apple schema over a custom intent.
• Keep app entities lightweight and limited to what people see or reference. Donate only direct UI interactions.
• Use standard text views so Writing Tools works for free. Use the Writing Tools API directly only for a custom text engine.