Apple Documentation Lookup

Fetch Apple Developer Documentation and WWDC session transcripts as clean markdown using the sosumi CLI tool.

Installation

npm install -g @nshipster/sosumi
# or use directly with npx (no install needed)

Commands

Search documentation

When the user needs to find an API, framework, or concept:

npx @nshipster/sosumi search "$ARGUMENTS" 2>/dev/null

Fetch specific documentation page

When the user provides a documentation path or URL:

npx @nshipster/sosumi fetch "$ARGUMENTS" 2>/dev/null

Fetch WWDC session transcript

When the user asks about a WWDC session:

npx @nshipster/sosumi fetch "/videos/play/wwdc{year}/{session-id}" 2>/dev/null

How to decide which command to use

1. If $ARGUMENTS starts with /documentation or /videos or https://developer.apple.com → use fetch
2. If $ARGUMENTS is a search query (e.g. "SwiftData", "HealthKit sleep") → use search
3. If no arguments provided → ask the user what they want to look up

Workflow

1. Run the appropriate sosumi command
2. Read the output (markdown-formatted Apple documentation)
3. Present the relevant information to the user in a concise summary
4. If the search returned multiple results, pick the most relevant and offer to fetch the full docs
5. When fetching API docs, highlight: signature, availability, key parameters, and usage notes

Common documentation paths

/documentation/swiftui
/documentation/swiftdata
/documentation/observation
/documentation/charts
/documentation/healthkit
/documentation/widgetkit
/documentation/backgroundtasks
/documentation/foundation
/documentation/uikit
/documentation/combine
/documentation/concurrency
/documentation/corelocation
/documentation/mapkit
/documentation/avfoundation
/documentation/coreml
/documentation/createml
/documentation/vision
/documentation/naturallanguage
/documentation/appintents

Example usage

User: /apple-docs HKCategoryValueSleepAnalysis → Run: npx @nshipster/sosumi search "HKCategoryValueSleepAnalysis" → Then fetch the top result if needed

User: /apple-docs /documentation/swiftui/view → Run: npx @nshipster/sosumi fetch "/documentation/swiftui/view"

User: /apple-docs SwiftData model macro → Run: npx @nshipster/sosumi search "SwiftData model macro"

User: /apple-docs WWDC23 SwiftData → Run: npx @nshipster/sosumi search "WWDC 2023 SwiftData" → Then fetch the session path from the results

Requirements

• Node.js 18+
• Internet connection (fetches from developer.apple.com)

Notes

• Output is clean markdown, ideal for reading in terminal
• Search returns up to 50+ results — pick the most relevant
• Documentation paths are case-insensitive
• WWDC transcripts include full session text with timestamps
• Works with all Apple frameworks: SwiftUI, UIKit, HealthKit, CoreML, etc.