Problem

I would like to be able track the update times of specific fields automatically, for example name_updated_at instead of just a blanket updated_at.

Suggested solution

I suggest offering the ability to pass a field name as an argument to the @updatedAt tag. For example:

model User {
  name String
  nameUpdatedAt DateTime @updatedAt(name)
}

Alternatives

Or if you want to make it a little more dynamic, then a list of field names like this

model User {
  name String
  nameUpdatedAt DateTime @updatedAt(fields: [name])
}

Additional context

field_updated_at is a fairly common sql pattern used extensively in rails. It makes it easier to track more sensitive changes, especially those that require authorization.