Hello. I'm making a package plugin that automatically generates source code for sample data files. As part of this, there some work having to be done to the package manifest. Is there a way to provide rich diagnostics into Xcode in a similar way as is possible with macros to give users guidance when they have implemented something that isn't correctly done? I'm trying to throw errors whenever something incorrect is detected but this doesn't seem to be working as Xcode doesn't seem to do anything in response to this. I'm running Xcode 16 beta 3 on macOS 15 beta 3.
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