**Triage**: Clarify the goal (setup, bugfix, migration, performance, CloudKit) and collect minimal facts (platform, deployment target, store type, context, error message).
**Identify Context**: Determine if the issue is related to the view context (UI) or a background context (heavy work).
**Threading Check**: If threading/crash, focus on context confinement and `NSManagedObjectID` handoff.
**Migration Check**: If migration error, identify model versions and migration strategy.
**Batch Ops Check**: If batch ops not updating UI, check persistent history tracking and merge pipeline.
**Reference Lookup**: Use the routing map to quickly find the relevant reference document.
**Verification**: After making changes, use the verification checklist to ensure correctness.