Core Data Expert

Overview

An agent skill that gives AI coding tools expert guidance on Core Data. It helps with stack setup, thread safety, performance, schema migrations and CloudKit sync. It draws mainly on SwiftLee's Core Data articles and tries to stay neutral on architecture.

Features

• Helps choose between NSPersistentContainer and NSPersistentCloudKitContainer setups
• Avoids threading mistakes using NSManagedObjectID and proper contexts
• Writes efficient fetch requests with batching and property limits
• Guides lightweight and staged schema migrations
• Covers CloudKit integration and schema limits
• Includes a triage playbook that points to the right reference file for an error

Requirements

The source doesn't list any requirements, so check the project's own docs before you install.

Install

1. Install with the skills CLI

   npx skills add https://github.com/avdlee/core-data-agent-skill --skill core-data-expert

2. Or install as a Claude Code plugin

   /plugin marketplace add AvdLee/Core-Data-Agent-Skill
   /plugin install core-data-expert@core-data-agent-skill

3. Or clone the repo and copy the core-data-expert folder into your tool's skills directory

Example

Ask your agent: "Use the core data skill and analyze the current project for Core Data improvements."