local-authenticationlisted

Route Face ID/Touch ID/device-passcode implementation tasks to the correct Knowledge Contracts -- availability and biometry-type detection, policy evaluation, reason strings and Info.plist, error handling, LAContext lifecycle, Keychain-biometric binding, and fallback UX. Use when checking biometric availability, calling evaluatePolicy, writing an NSFaceIDUsageDescription string, handling an LAError, managing LAContext lifetime, binding a Keychain item to biometrics via SecAccessControl, or deciding on a passcode fallback. v1 is iOS/iPadOS LocalAuthentication framework API only -- no macOS/watchOS-specific behavior, no general Keychain storage (SecItemAdd/Copy/Update for non-biometric-bound items). Triggers on Face ID, Touch ID, LAContext, LABiometryType, canEvaluatePolicy, evaluatePolicy, deviceOwnerAuthentication, deviceOwnerAuthenticationWithBiometrics, LAPolicy, LAError, biometryNotEnrolled, biometryLockout, NSFaceIDUsageDescription, localizedReason, localizedFallbackTitle, SecAccessControl, biometryCurren
caglarbaranbora/Apple-Agent-Kit · ★ 1 · API & Backend · score 68

Install: claude install-skill caglarbaranbora/Apple-Agent-Kit

# Local Authentication — Foundations Skill ## Purpose Route Face ID/Touch ID/device-passcode implementation tasks to the minimum required Local Authentication Knowledge Contracts. v1 scope is the iOS/iPadOS LocalAuthentication framework API plus the Keychain-biometric binding seam — no macOS/watchOS-specific behavior, no general Keychain storage. ## Routing Load only the contracts relevant to the task. All paths relative to knowledge/local-authentication/. - Checking availability or biometry type -> availability-and-biometry-type.md - Calling evaluatePolicy / choosing a policy -> policy-evaluation.md - Writing localizedReason or NSFaceIDUsageDescription -> reason-strings-and-info-plist.md - Handling an LAError -> error-handling.md - Managing LAContext lifetime or re-enrollment detection -> context-lifecycle.md - Binding a Keychain item to biometrics -> keychain-biometric-binding.md - Deciding on or configuring a passcode fallback -> fallback-ux-and-passcode.md Never load more than the contracts relevant to the specific question. ## Stop Conditions Stop and report if the requested topic has no matching Knowledge Contract in knowledge/local-authentication/ — do not guess or fall back to general knowledge. - macOS/watchOS-specific LocalAuthentication behavior — Deferred - General Keychain storage (`SecItemAdd`/`SecItemCopyMatching`/ `SecItemUpdate` for non-biometric-bound items) — owned by `security`