swiftdata-code-review

Reviews SwiftData code for model design, queries, concurrency, and migrations. Use when reviewing .swift files with import SwiftData, @Model, @Query, @ModelActor, or VersionedSchema.

3,891 stars

Best use case

swiftdata-code-review is best used when you need a repeatable AI agent workflow instead of a one-off prompt.

Reviews SwiftData code for model design, queries, concurrency, and migrations. Use when reviewing .swift files with import SwiftData, @Model, @Query, @ModelActor, or VersionedSchema.

Teams using swiftdata-code-review should expect a more consistent output, faster repeated execution, less prompt rewriting.

When to use this skill

  • You want a reusable workflow that can be run more than once with consistent structure.

When not to use this skill

  • You only need a quick one-off answer and do not need a reusable workflow.
  • You cannot install or maintain the underlying files, dependencies, or repository context.

Installation

Claude Code / Cursor / Codex

$curl -o ~/.claude/skills/swiftdata-code-review/SKILL.md --create-dirs "https://raw.githubusercontent.com/openclaw/skills/main/skills/anderskev/swiftdata-code-review/SKILL.md"

Manual Installation

  1. Download SKILL.md from GitHub
  2. Place it in .claude/skills/swiftdata-code-review/SKILL.md inside your project
  3. Restart your AI agent — it will auto-discover the skill

How swiftdata-code-review Compares

Feature / Agentswiftdata-code-reviewStandard Approach
Platform SupportNot specifiedLimited / Varies
Context Awareness High Baseline
Installation ComplexityUnknownN/A

Frequently Asked Questions

What does this skill do?

Reviews SwiftData code for model design, queries, concurrency, and migrations. Use when reviewing .swift files with import SwiftData, @Model, @Query, @ModelActor, or VersionedSchema.

Where can I find the source code?

You can find the source code on GitHub using the link provided at the top of the page.

Related Guides

SKILL.md Source

# SwiftData Code Review

## Quick Reference

| Issue Type | Reference |
|------------|-----------|
| @Model, @Attribute, @Relationship, delete rules | [references/model-design.md](references/model-design.md) |
| @Query, #Predicate, FetchDescriptor, #Index | [references/queries.md](references/queries.md) |
| @ModelActor, ModelContext, background operations | [references/concurrency.md](references/concurrency.md) |
| VersionedSchema, MigrationStage, lightweight/custom | [references/migrations.md](references/migrations.md) |

## Review Checklist

- [ ] Models marked `final` (subclassing crashes)
- [ ] @Relationship decorator on ONE side only (not both)
- [ ] Delete rules explicitly set (not relying on default .nullify)
- [ ] Relationships initialized to empty arrays, not default objects
- [ ] Batch operations used for bulk inserts (`append(contentsOf:)`)
- [ ] @Query not loading thousands of items on main thread
- [ ] External values in predicates captured in local variables
- [ ] Scalar comparisons in predicates (not object references)
- [ ] @ModelActor used for background operations
- [ ] PersistentIdentifier/DTOs used to pass data between actors
- [ ] VersionedSchema defined for each shipped version
- [ ] MigrationPlan passed to ModelContainer

## When to Load References

- Reviewing @Model or relationships -> model-design.md
- Reviewing @Query or #Predicate -> queries.md
- Reviewing @ModelActor or background work -> concurrency.md
- Reviewing schema changes or migrations -> migrations.md

## Review Questions

1. Could this relationship assignment cause NULL foreign keys?
2. Is @Relationship on both sides creating circular references?
3. Could this @Query block the main thread with large datasets?
4. Are model objects being passed between actors unsafely?
5. Would schema changes require a migration plan?

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