This skill gives iOS and macOS developers fast, production-oriented guidance for Core Data: stack setup, fetch requests, thread safety, migration, and CloudKit sync. It triages common crashes, merge conflicts, and performance problems by routing each issue to the right reference and checklist. It is for developers who need a structured, corrective second opinion on Core Data work.
Follow the documented setup, then try a first task.
Installs: Installs the core-data-expert skill. · AI coding tools supporting the Agent Skills open format
Run this terminal command to install the core-data-expert skill from the repository.
npx skills add https://github.com/avdlee/core-data-agent-skill --skill core-data-expert
Installs: Installs the core-data-expert plugin skill for personal use in Claude Code. · Claude Code
Enter this command in a Claude Code session to add the repository as a plugin marketplace.
/plugin marketplace add AvdLee/Core-Data-Agent-Skill
Then enter this command in the Claude Code session to install the skill.
/plugin install core-data-expert@core-data-agent-skill
Installs: Makes the core-data-expert plugin available to everyone working in a configured repository; Claude Code prompts team members to install it when they open the project. · Claude Code
Run from: Repository root
Configure the repository's `.claude/settings.json` with this exact JSON: { "enabledPlugins": { "core-data-expert@core-data-agent-skill": true }, "extraKnownMarketplaces": { "core-data-agent-skill": { "source": { "source": "github", "repo": "AvdLee/Core-Data-Agent-Skill" } } } }
When a team member opens the project, follow Claude Code's prompt to install the skill.
Installs: Installs or symlinks the core-data-expert folder according to the selected tool's official skill-installation documentation. · Codex, Claude, Cursor
Clone the AvdLee/Core-Data-Agent-Skill repository. The supplied evidence does not provide a clone command, so perform this as a manual step.
Install or symlink the repository's `core-data-expert/` folder by following the official skill-installation documentation for Codex, Claude, or Cursor.
Use the AI tool normally and ask it to use the `core-data-expert` skill for Core Data tasks.
Uses core-data-expert
Use the core-data-expert skill to analyze the current project for Core Data improvements.
Claude
Codex
Cursor