---
title: Rule Title Here
impact: MEDIUM
impactDescription: quantified impact (e.g., "prevents data corruption", "2× fewer crashes")
tags: category-prefix, tag2, tag3
---

## Rule Title Here

Brief explanation (1-3 sentences) of WHY this matters. Focus on data integrity, persistence, or SwiftUI integration implications.

**Incorrect (description of what's wrong):**

```swift
// Bad code example — production-realistic, not strawman
```

**Correct (description of what's right):**

```swift
// Good code example — minimal diff from incorrect
```

Reference: [Apple Documentation](https://developer.apple.com/documentation/swiftdata)
