Axiom Core Data Diag

This is one of those skills you install after watching Core Data crash in production for the third time and finally admitting it's not the framework's fault. It helps diagnose the usual suspects: thread confinement violations, schema migration failures, and relationship query performance issues. The forbidden section is worth the install alone, it cuts through the "let's switch to Realm" wishful thinking and forces you to actually understand what went wrong. If you're mixing SwiftData with Core Data or seeing "unresolvable fault" errors after deployments, this will walk you through the diagnostic process without the usual Apple documentation runaround.