iOS File Protection Reference FAQs

Question 1

What is the iOS File Protection Reference skill?

Accepted Answer

It is a specialized capability for Claude Code that provides expert guidance, code patterns, and architectural best practices for implementing hardware-accelerated file encryption and data protection APIs on iOS, iPadOS, and macOS.

Question 2

Does this skill help with Keychain vs. File Protection decisions?

Accepted Answer

Yes, it includes a detailed decision matrix comparing iOS Keychain storage (for small secrets) against File Protection APIs (for larger files), ensuring you choose the most secure and efficient storage strategy for your data.

Question 3

How does this skill improve my mobile development workflow?

Accepted Answer

It provides instant access to complex security implementation patterns, such as setting directory-level security attributes and handling background file access, reducing the time spent researching Apple's security documentation.

Question 4

When should I use this skill during development?

Accepted Answer

Use this skill when you need to protect sensitive user data at rest, choose the correct FileProtectionType for your app's specific needs, or troubleshoot 'file not accessible' errors that occur when a device is locked.

Question 5

What specific iOS protection levels are covered?

Accepted Answer

The skill provides comprehensive comparisons and code examples for all major levels: .complete, .completeUnlessOpen, .completeUntilFirstUserAuthentication, and .none, including their impact on background task accessibility.

iOS File Protection Reference

iOS File Protection Reference

主な機能

ユースケース

主な機能

ユースケース