interface SecureMessage {
  /** Unique message identifier (UUID v4) */
  id: string;
  /** Sender agent ID */
  sender: string;
  /** Recipient agent ID */
  recipient: string;
  /** Encrypted payload (base64-encoded) */
  encryptedPayload: string;
  /** Timestamp when the message was created */
  timestamp: number;
}

import { encryptForVerifier } from '@spellguard/amp';

const encrypted = encryptForVerifier(
  JSON.stringify(payload),
  verifier.sessionX25519PublicKey
);