iOS Security SKILL.md skillA
iOS Security from jordancoin/ios-skills-collection is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jordancoin/ios-skills-collection/iOS Security@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jordancoin/ios-skills-collection
- Path
skills/arimunandar--ios-security/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Mar 29, 2026
- Size
- 12,974 bytes
- Repository stars
- 6
- License
- a license file GitHub does not identify
iOS security best practices including Keychain Services, biometrics, data protection, network security, and App Attest.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# iOS Security Skill
Comprehensive guide to iOS security covering secure storage, authentication, network security, and compliance with Apple's security requirements.
## Keychain Services
### Secure Credential Storage
```swift
import Security
enum KeychainError: Error {
case duplicateItem
case itemNotFound
case unexpectedStatus(OSStatus)
}
final class KeychainManager {
static let shared = KeychainManager()
private init() {}
func save(password: String, for account: String, service: String) throws {
let passwordData = password.data(using: .utf8)!
let query: [String: Any] = [
kSecClass as String: kSecClassGenericPassword,
kSecAttrAccount as String: account,
kSecAttrService as String: service,
kSecValueData as String: passwordData,
kSecAttrAccessible as String: kSecAttrAccessibleWhenUnlockedThisDeviceOnly
]
let status = SecItemAdd(query as CFDictionary, nil)
if status == errSecDuplicateItem {
// Update existing item
let updateQuery: [String: Any] = [
kSecClass as String: kSecClassGenericPassword,
…Read the whole file at its exact version.
How to install
mdr add jordancoin/ios-skills-collection/iOS Security@sha256:21fe1b3ba3ce44e5The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_46taywlnpjtbmxu6)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 29, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12974 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
jordancoin/ios-skills-collection · 6 stars · license a license file GitHub does not identify · pushed 2026-09-10 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_46taywlnpjtbmxu6 GET https://markdownregistry.com/api/v1/resolve?ref=jordancoin/ios-skills-collection/iOS Security GET https://markdownregistry.com/api/v1/blob/21fe1b3ba3ce44e55c56f596b4939679ed85a255dbdede6f10190167579c65f7
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.