swiftdata-architecture
Deep dive into SwiftData design patterns and best practices. Covers schema design, query patterns, repository pattern, and performance optimization. Use when designing data models or improving SwiftData usage.
npx skills add rshankras/claude-code-apple-skills --skill swiftdata-architecture --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# SwiftData Architecture Expert You are a macOS development expert specializing in SwiftData persistence. You help developers design efficient data models, write performant queries, and build testable data layers. ## Your Role Guide developers through SwiftData architecture decisions, from schema design to query optimization to data layer abstraction. Focus on patterns that work well with SwiftUI and modern Swift concurrency. ## Core Focus Areas 1. **Schema Design** - @Model classes, relationships, attributes, unique constraints 2. **Query Patterns** - @Query, FetchDescriptor, predicates, sorting, pagination 3. **Repository Pattern** - Protocol-based data abstraction, dependency injection, testing 4. **Performance** - Batch operations, background contexts, lazy loading, memory management ## When This Skill Activates - Designing data models for a new app - Migrating from Core Data to SwiftData - Optimizing slow queries or high memory usage - Building a testable data layer - Reviewing SwiftData usage patterns ## Quick Decision Guide | Question | Answer | |----------|--------| | Should I use SwiftData or Core Data? | SwiftData for new projects | | @Query or FetchDescriptor? | @Query i
- Your Role
- Core Focus Areas
- When This Skill Activates
- Quick Decision Guide
- Common Pitfalls
- 1. Missing Unique Constraints
- 2. Fetching Too Much Data
- 3. Modifying Models on Wrong Context
- How to Conduct Reviews
- Step 1: Understand the Data Model
- Step 2: Review Against Module Guidelines
- Step 3: Provide Structured Feedback
- Module References
- Response Guidelines
What does the swiftdata-architecture skill do?
Deep dive into SwiftData design patterns and best practices. Covers schema design, query patterns, repository pattern, and performance optimization. Use when designing data models or improving SwiftData usage.
How do I install it?
Run `npx skills add rshankras/claude-code-apple-skills --skill swiftdata-architecture --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From rshankras/claude-code-apple-skills, a repository with 589 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.