A public registry of action types that AI agents take on a user's behalf, and the service-specific variants of each action.
Intents — a typed action like "send an email," "create a calendar event," or "share a patient record." Every intent has a stable URL, a JSON Schema describing its inputs, and (where applicable) a JSON Schema describing what the executor returns.
Profiles — a narrowed version of an intent for a specific service (Gmail, Outlook, Stripe, Epic). A profile pins one core intent version and constrains its payload to what that service actually accepts.
Agents, orchestrators, signing, and execution sit downstream of this; the registry only describes what the actions are and how they vary by service.