Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add rshankras/claude-code-apple-skills --skill auth-flowgit clone --depth 1 https://github.com/rshankras/claude-code-apple-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/rshankras/claude-code-apple-skills/auth-flow)<a href="https://agentmods.dev/skills/rshankras/claude-code-apple-skills/auth-flow"><img src="https://agentmods.dev/badge/skills/rshankras/claude-code-apple-skills/auth-flow.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 5 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Privilege Escalation · line 33 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Privilege Escalation · line 124 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Privilege Escalation · line 102 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- medium Rogue Agent · line 108 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Rogue Agent · line 186 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00037 | $0.01226 |
| Opus 5 | $0.00018 | $0.00613 |
| Sonnet 5 | $0.00007 | $0.00245 |
| Haiku 4.5 | $0.00004 | $0.00123 |
Grade A, and why
auth-flow scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Auth Flow Generator
Generate a complete authentication flow with Sign in with Apple, biometric authentication (Face ID/Touch ID), and secure Keychain storage.
When This Skill Activates
Use this skill when the user:
- Asks to "add authentication" or "add login"
- Mentions "Sign in with Apple" or "SIWA"
- Wants "Face ID login" or "biometric auth"
- Asks about "Keychain" or "secure storage"
- Mentions "user session" or "auth token"
Pre-Generation Checks
1. Project Context Detection
- Check for existing auth implementations
- Check for AuthenticationServices framework usage
- Verify entitlements file exists
- Identify source file locations
2. Conflict Detection
Search for existing auth:
Glob: **/*Auth*.swift, **/*Keychain*.swift
Grep: "ASAuthorizationController" or "LAContext"
If found, ask user:
- Replace existing implementation?
- Extend with additional methods?
3. Required Capabilities
Sign in with Apple requires:
- Add "Sign in with Apple" capability in Xcode
- Configure in App Store Connect
- Add entitlement:
com.apple.developer.applesignin
Configuration Questions
Ask user via AskUserQuestion:
-
Authentication methods? (multi-select)
- Sign in with Apple
- Biometrics (Face ID/Touch ID)
- Both
-
Session storage?
- Keychain (secure, persists reinstall)
- UserDefaults (simple, cleared on reinstall)
-
Session management?
- Auto-refresh tokens
- Manual refresh
- No token refresh needed
Generation Process
Step 1: Create Core Files
Generate these files:
AuthenticationManager.swift- Core auth orchestrationKeychainManager.swift- Secure storageSignInWithAppleManager.swift- SIWA handlingBiometricAuthManager.swift- Face ID/Touch ID
Step 2: Create SwiftUI Components
Based on configuration:
SignInWithAppleButton.swift- SwiftUI button wrapperAuthenticationView.swift- Complete auth UI
Step 3: Determine File Location
Check project structure:
- If
Sources/exists →Sources/Auth/ - If
App/exists →App/Auth/ - Otherwise →
Auth/
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 206 lines · 37 tokens per session scan A 441b80aa4a36
auth-flow is a skill published in the GitHub repository rshankras/claude-code-apple-skills (708 stars, last pushed 1mo ago), licensed MIT. It adds 37 tokens to every session and 1,226 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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flame-harness-admob
Phase 7 — analyze the game, decide a rewarded-ad strategy, guide manual AdMob ad-unit creation, and inject googlemobileads + ATT/UMP consent code.
flame-harness-screenshot
Phase 9 — capture store screenshots in the game's configured locales via integrationtest (ads hidden), fill ASO keywords, and upload via fastlane.