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// Skill profile

CloudKit Code Review

Name: CloudKit Code Review
Author: anderskev

name: cloudkit-code-review

by anderskev · published 2026-04-01

开发工具数据处理

Total installs

Stars

★ 0

Last updated

2026-04

// Install command

$ claw add gh:anderskev/anderskev-cloudkit-code-review

View on GitHub

// Full documentation

---

name: cloudkit-code-review

description: Reviews CloudKit code for container setup, record handling, subscriptions, and sharing patterns. Use when reviewing code with import CloudKit, CKContainer, CKRecord, CKShare, or CKSubscription.

---

# CloudKit Code Review

Quick Reference

| Issue Type | Reference |

|------------|-----------|

| CKContainer, databases, zones, entitlements | [references/container-setup.md](references/container-setup.md) |

| CKRecord, references, assets, batch operations | [references/records.md](references/records.md) |

| CKSubscription, push notifications, silent sync | [references/subscriptions.md](references/subscriptions.md) |

| CKShare, participants, permissions, acceptance | [references/sharing.md](references/sharing.md) |

Review Checklist

[ ] Account status checked before private/shared database operations

[ ] Custom zones used (not default zone) for production data

[ ] All CloudKit errors handled with `retryAfterSeconds` respected

[ ] `serverRecordChanged` conflicts handled with proper merge logic

[ ] `CKErrorPartialFailure` parsed for individual record errors

[ ] Batch operations used (`CKModifyRecordsOperation`) not individual saves

[ ] Large binary data stored as `CKAsset` (records have 1MB limit)

[ ] Record keys type-safe (enums) not string literals

[ ] UI updates dispatched to main thread from callbacks

[ ] `CKAccountChangedNotification` observed for account switches

[ ] Subscriptions have unique IDs to prevent duplicates

[ ] CKShare uses custom zone (sharing requires custom zones)

When to Load References

Reviewing container/database setup or zones -> container-setup.md

Reviewing record CRUD or relationships -> records.md

Reviewing push notifications or sync triggers -> subscriptions.md

Reviewing sharing or collaboration features -> sharing.md

Output Format

Report issues using: `[FILE:LINE] ISSUE_TITLE`

Examples:

`[AppDelegate.swift:24] CKContainer not in custom zone`

`[SyncManager.swift:156] Unhandled CKErrorPartialFailure`

`[DataStore.swift:89] Missing retryAfterSeconds backoff`

Review Questions

1. What happens when the user is signed out of iCloud?

2. Does error handling respect rate limiting (`retryAfterSeconds`)?

3. Are conflicts resolved or does data get overwritten silently?

4. Is the schema deployed to production before App Store release?

5. Are shared records in custom zones (required for CKShare)?

// Comments

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