core-nfc
Read and write NFC tags using CoreNFC. Use when scanning NDEF tags, reading ISO7816/ISO15693/FeliCa/MIFARE tags, writing NDEF messages, handling NFC session lifecycle, configuring NFC entitlements, or implementing background tag reading in iOS apps.
Profile →npx skills add dpearson2699/swift-ios-skills --skill core-nfc --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# CoreNFC Read and write NFC tags on iPhone using the CoreNFC framework. Covers NDEF reader sessions, tag reader sessions, NDEF message construction, entitlements, and background tag reading. ## Contents - [Setup](#setup) - [NDEF Reader Session](#ndef-reader-session) - [Tag Reader Session](#tag-reader-session) - [Writing NDEF Messages](#writing-ndef-messages) - [NDEF Payload Types](#ndef-payload-types) - [Background Tag Reading](#background-tag-reading) - [Common Mistakes](#common-mistakes) - [Review Checklist](#review-checklist) - [References](#references) ## Setup ### Project Configuration 1. Add the **Near Field Communication Tag Reading** capability in Xcode 2. Add `NFCReaderUsageDescription` to Info.plist with a user-facing reason string 3. Add the `com.apple.developer.nfc.readersession.formats` entitlement with the current `TAG` value; do not add legacy `NDEF` 4. For ISO 7816 tags, add supported application identifiers to `com.apple.developer.nfc.readersession.iso7816.select-identifiers` in Info.plist 5. For FeliCa tags, add supported system codes to `com.apple.developer.nfc.readersession.felica.systemcodes`; do not use wildcard system codes ### Device Requirements NFC readin
- Contents
- Setup
- Project Configuration
- Device Requirements
- Key Types
- NDEF Reader Session
- Reading with Tag Connection
- Tag Reader Session
- Writing NDEF Messages
- NDEF Payload Types
- Creating Common Payloads
- Parsing Payload Content
- Background Tag Reading
- Common Mistakes
What does the core-nfc skill do?
Read and write NFC tags using CoreNFC. Use when scanning NDEF tags, reading ISO7816/ISO15693/FeliCa/MIFARE tags, writing NDEF messages, handling NFC session lifecycle, configuring NFC entitlements, or implementing background tag reading in iOS apps.
How do I install it?
Run `npx skills add dpearson2699/swift-ios-skills --skill core-nfc --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From dpearson2699/swift-ios-skills, a repository with 963 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.