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audit-xcode-security-settings

Audits and enables security-oriented Xcode build settings, entitlements, and Enhanced Security features.

25|1|Updated Feb 10, 2026
Search Tags:#static analysis#security audit#xcode#compiler warnings#build settings#hardening#entitlements
One-click install
npx skills add https://github.com/wisdom-in-a-nutshell/agents --skill audit-xcode-security-settings-wisdom-in-a-nutshell
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: audit-xcode-security-settings
Source: https://github.com/wisdom-in-a-nutshell/agents/tree/main/skills-source/external/audit-xcode-security-settings
Command: npx skills add https://github.com/wisdom-in-a-nutshell/agents --skill audit-xcode-security-settings-wisdom-in-a-nutshell

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve? Xcode projects often ship without hardened compiler warnings, static analyzer security checkers, or the Enhanced Security capability, leaving C/C++/Objective-C/Swift codebases exposed to memory corruption, control-flow hijacking, and information leaks that could be caught at build time. ## Core Features & Use Cases - Progressive Security Enablement: Applies basic Clang safety warnings, static analyzer security checkers, and the Enhanced Security capability (pointer authentication, stack zero-init, typed allocators, hardened libc++) across project and target levels. - Entitlements Audit and Migration: Adds required hardened-process entitlements, removes deprecated keys, and migrates enhanced-security-version-string from 1 to 2 per target. - Decision Document Tracking: Maintains a version-controlled xcode-security-settings.md recording every enabled, disabled, or deferred setting with rationale for future audits. - Use Case: Point the skill at an iOS app project; it detects the languages and targets, proposes per-target Enhanced Security diffs, applies Clang warnings, flags any setting explicitly disabled without rationale, and writes a decision document. ## Quick Start Ask the assistant to audit this Xcode project's security build settings and enable Enhanced Security hardening on all supported targets.

Frequently Asked Questions about audit-xcode-security-settings

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I enable Enhanced Security in an Xcode project?▼

Set ENABLE_ENHANCED_SECURITY = YES at the project level and add the com.apple.security.hardened-process entitlements to each supported target. This skill audits each target, proposes the required entitlement and build-setting changes, and applies them after your confirmation.

What security compiler warnings should I enable in Xcode?▼

Start with GCC_WARN_ABOUT_RETURN_TYPE=YES_ERROR, GCC_WARN_UNINITIALIZED_AUTOS=YES_AGGRESSIVE, CLANG_WARN_IMPLICIT_FALLTHROUGH, and the CLANG_ANALYZER_SECURITY checkers for rand and strcpy. Enhanced Security additionally cascades -Wshadow, -Wempty-body, and security-focused warnings automatically.

Does pointer authentication work on all Apple platforms?▼

Pointer authentication (arm64e) is supported on iOS, macOS, visionOS, and DriverKit, but not on watchOS, tvOS, or simulators. The skill writes a target-level ENABLE_POINTER_AUTHENTICATION = NO override for unsupported platforms so the project-level cascade does not break those builds.

Can I enable pointer authentication with binary Swift package dependencies?▼

Not safely. XCFrameworks and binary dependencies must include an arm64e slice, or linking fails. The skill detects binary dependencies not built from source and recommends requesting a universal arm64 plus arm64e build from the vendor before enabling.

What is hardware memory tagging and when should I enable it?▼

Hardware memory tagging uses ARM Memory Tagging Extension to detect use-after-free and heap overflows at runtime, available on iPhone 17 and M5-class devices. Enable it in soft mode first to collect simulated crash reports, fix the bugs, then disable soft mode for enforcement.

What security areas does this Xcode audit not cover?▼

The audit explicitly skips network security topics such as TLS and App Transport Security, code signing configuration, and privacy APIs. It focuses only on build settings, static analysis checkers, and Enhanced Security entitlements.

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