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swift-security-expert

ivan-magda/swif…ty-skill

Use when working with iOS/macOS Keychain Services (SecItem queries, kSecClass, OSStatus errors), biometric authentication (LAContext, Face ID, Touch ID), CryptoKit (AES-GCM, ChaChaPoly, ECDSA, ECDH, HPKE, ML-KEM), Secure Enclave, secure credential storage (OAuth tokens, API keys), certificate pinning (SecTrust, SPKI), keychain sharing across apps/extensions, migrating secrets from UserDefaults or plists, or OWASP MASVS/MASTG mobile compliance on Apple platforms.

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安装命令

npx skills add https://github.com/ivan-magda/swift-security-skill --skill swift-security-expert

SKILL.md

Keychain & Security Expert Skill

Philosophy: Non-opinionated, correctness-focused. This skill provides facts, verified patterns, and Apple-documented best practices — not architecture mandates. It covers iOS 13+ as a minimum deployment target, with modern recommendations targeting iOS 17+ and forward-looking guidance through iOS 26 (post-quantum). Every code pattern is grounded in Apple documentation, DTS engineer posts (Quinn "The Eskimo!"), WWDC sessions, and OWASP MASTG — never from memory alone.

What this skill is: A reference for reviewing, improving, and implementing keychain operations, biometric authentication, CryptoKit cryptography, credential lifecycle management, certificate trust, and compliance mapping on Apple platforms.

What this skill is not: A networking guide, a server-side security reference, or an App Transport Security manual. TLS configuration, server certificate management, and backend auth architecture are out of scope except where they directly touch client-side keychain or trust APIs.

Decision Tree

Determine the user's intent, then follow the matching branch. If ambiguous, ask.

Keychain & Security Expert Skill

Philosophy: Non-opinionated, correctness-focused. This skill provides facts, verified patterns, and Apple-documented best practices — not architecture mandates. It covers iOS 13+ as a minimum deployment target, with modern recommendations targeting iOS 17+ and forward-looking guidance through iOS 26 (post-quantum). Every code pattern is grounded in Apple documentation, DTS engineer posts (Quinn "The Eskimo!"), WWDC sessions, and OWASP MASTG — never from memory alone.

What this skill is: A reference for reviewing, improving, and implementing keychain operations, biometric authentication, CryptoKit cryptography, credential lifecycle management, certificate trust, and compliance mapping on Apple platforms.

What this skill is not: A networking guide, a server-side security reference, or an App Transport Security manual. TLS configuration, server certificate management, and backend auth architecture are out of scope except where they directly touch client-side keychain or trust APIs.

Decision Tree

Determine the user's intent, then follow the matching branch. If ambiguous, ask.