The Agent Skills Directory

[SAFE]: The skill serves as an educational resource for iOS developers. All code snippets utilize standard Apple CoreNFC APIs for reading and writing NDEF, ISO 7816, ISO 15693, FeliCa, and MIFARE tags.
[SAFE]: External links point to documentation resources (sosumi.ai). While this is a non-standard domain often used in developer parodies or placeholders, the links are formatted as documentation references and do not involve automated script execution or payload downloads.
[SAFE]: The skill correctly emphasizes security best practices for iOS development, such as requiring the NFCReaderUsageDescription in Info.plist and configuring necessary entitlements (com.apple.developer.nfc.readersession.formats).
[SAFE]: Hardware interaction patterns, including NDEF tag locking, are accurately described as irreversible operations, providing appropriate warnings to the developer.
[SAFE]: The code correctly implements check-before-use patterns (e.g., NFCNDEFReaderSession.readingAvailable) to prevent application crashes on unsupported hardware.

core-nfc