Summary
Covers the full spectrum of iOS security work: keychain storage for credentials and tokens, CryptoKit for encryption and signing, passkey implementation, app attestation, file protection levels, and code signing for distribution. The decision tree is genuinely helpful for knowing whether your signing error belongs in keychain diagnostics or the build tooling. Good conflict resolution with related skills like networking (TLS vs payload signing) and data persistence (when to use keychain vs SwiftData). The reference docs include actual SecItem signatures and error codes, not just conceptual overviews. If you're doing anything with secrets, certificates, or cryptography on Apple platforms, this covers the modern API surface without the CommonCrypto baggage.
Install to Claude Code
npx -y skills add charleswiltgen/axiom --skill axiom-security --agent claude-codeInstalls into .claude/skills of the current project.
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →Files
SKILL.md
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Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
