Apple terms of use for Automation/Shortcuts regarding messages

Hello, I'm planning on building an app that provides instructions on how to implement Automation for a shortcut that will look for specific message content in messages, and forward it to my app. I want to understand if this method isn't a breach of Apple's terms of use, considering that I intend to have this used in scale (e.g. ~50k app users).

Some things to clarify:

  1. The content that will be searched in the Messages app will be reviewed and approved by the iPhone user.
  2. The iPhone user will be required to manually approve every automation action that occurs
  3. The iPhone user will have control to remove any forwarded messages that were approved by mistake or in any case of regret.
  4. The iPhone user will be well aware of the actions he makes, and approves in terms of the process and usage of the content by app.

Thank you!