Agent skill · software engineering · dpearson2699
natural-language
Tokenize, tag, and analyze natural language text using Apple's NaturalLanguage framework and translate between languages with the Translation framework. Use when adding language identification, sentiment analysis, named entity recognition, part-of-speech tagging, text embeddings, or in-app translation to iOS/macOS/visionOS apps.
Why this skill is useful
Provides specific commands and patterns for using Apple's NaturalLanguage and Translation frameworks that the AI wouldn't reliably generate on its own.
What it needs
About 6k tokens when loaded. Last updated 2026-07-31. 973 stars on the source repository.
What this skill does
NaturalLanguage + Translation Analyze natural language text for tokenization, part-of-speech tagging, named entity recognition, sentiment analysis, language identification, and word/sentence embeddings. Translate text between languages with the Translation framework. This skill covers two related frameworks: NaturalLanguage (NLTokenizer, NLTagger, NLEmbedding) for on-device text analysis, and Translation (TranslationSession, LanguageAvailability) for language translation. Scope boundary: Use this skill after you already have text. It owns tokenization, language identification, POS/NER tagging, sentiment, embeddings, custom NLModel classifiers/taggers, and in-app translation. Hand off OCR to vision-framework, speech-to-text to speech-recognition, UI strings and locale formatting to ios-localization, and generative summarization or Apple Intelligence workflows to apple-on-device-ai. Contents Setup Tokenization Language Identification Part-of-Speech Tagging Named Entity Recognition Sentiment Analysis Text Embeddings Translation Common Mistakes Review Checklist References Setup Import NaturalLanguage for text analysis and Translation for language translation. No special entitlements or capabilities are required for NaturalLanguage. Translation has split availability: system translation presentation is iOS 17.4+ / macOS 14.4+, while TranslationSession, .translationTask(), LanguageAvailability, and batch translation require iOS 18+ / macOS 15+. Direct TranslationSession(installedSource:target:) is the non-UI option, but only when the source and target languages are already installed on device. NaturalLanguage classes (NLTokenizer, NLTagger) are not thread-safe. Use each instance from one thread or dispatch queue at a time. Tokenization Segment text into words, sentences, or paragraphs with NLTokenizer. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills dpearson2699/natural-language