Core Location — Foundations Skill

Purpose

Route Core Location implementation tasks to the minimum required Core Location Knowledge Contracts. v1 scope is obtaining location access and receiving location: authorization levels and their Information Property List keys, the two delivery mechanisms, requested versus granted accuracy, and running outside the foreground — not geocoding, not beacons, not heading or visits, and not drawing a location on a map.

Routing

Load only the contracts relevant to the task. All paths relative to knowledge/core-location/.

• Reading authorizationStatus/CLAuthorizationStatus; calling requestWhenInUseAuthorization()/requestAlwaysAuthorization(); handling locationManagerDidChangeAuthorization(_:); or declaring NSLocationWhenInUseUsageDescription/NSLocationAlwaysAndWhenInUseUsageDescription -> authorization-and-usage-strings.md
• Iterating CLLocationUpdate.liveUpdates(_:); calling startUpdatingLocation()/stopUpdatingLocation(); implementing locationManager(_:didUpdateLocations:)/locationManager(_:didFailWithError:); or reading a fix's timestamp -> location-updates-and-delivery.md
• Setting desiredAccuracy; branching on accuracyAuthorization/CLAccuracyAuthorization; or calling requestTemporaryFullAccuracyAuthorization(withPurposeKey:) with its NSLocationTemporaryUsageDescriptionDictionary entry -> accuracy-and-precise-location.md
• Setting allowsBackgroundLocationUpdates with UIBackgroundModes; calling startMonitoringSignificantLocationChanges(); building a geofence with CLMonitor/CLCircularGeographicCondition; or handling a location-triggered relaunch -> background-monitoring-and-launches.md

Never load more than the contracts relevant to the specific question. For how a usage-description string should be worded, route to skill.app-store-review-guidelines.submission. For whether to show a pre-permission screen and what it says, route to skill.human-interface-guidelines.foundations.

Stop Conditions

Stop and report if the requested topic has no matching Knowledge Contract in knowledge/core-location/ — do not guess or fall back to general knowledge. CLGeocoder forward and reverse geocoding, beacon ranging (CLBeacon, CLBeaconIdentityCondition), heading (CLHeading), visit monitoring (CLVisit), and LocationButton are out of scope entirely (see docs/architecture/domain-map.md). The deprecated startMonitoring(for:) region API is not covered; condition monitoring is CLMonitor's.

Displaying a location on a map belongs to a future map-rendering domain, not yet built — report that boundary explicitly rather than answering from general knowledge.

Where a photo was taken is not this domain's question, even though the value it returns is a CLLocation. A task about a photo's recorded capture place routes to photos; knowledge.photos.asset-fetching Rule 5 owns it, including what authorization it does and does not require, and nothing here applies to it.

Scheduling background work with BGTaskScheduler is backgroundtasks' job. The one place the two meet — whether a movement-triggered feature should use a scheduled task at all — is answered by background-monitoring-and-launches.md here, which owns that decision; everything else about BGTask belongs to that Skill.