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Mobile iOS Whitebox Audit

Mobile iOS Whitebox Audit is a skill for Claude Code from allsmog/vuln-scout. It costs 88 tokens per session (819 once invoked), scanned A, original, MIT.

A security audit guide for iOS apps, Apple's mobile applications. It focuses on source code, project files, and settings such as network access and stored credentials.

In plain words
What is it for?
Use it when auditing an iOS app or reviewing features such as web views, network requests, Keychain storage, or App Transport Security.
Why use it?
It gives reviewers specific checks for common iOS security weaknesses instead of requiring them to inspect every file without direction.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the vuln-scout plugin — 32 skills, 15 commands, 9 agents shipped together

not rated 24repo 3mo ago A scan 88 tokens original MIT

Good fit Use it when auditing an iOS app or reviewing features such as web views, network requests, Keychain storage, or App Transport Security.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/allsmog/vuln-scout/mobile-ios
View source ↗ allsmog/vuln-scout
Install

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.

Any agent
npx skills add allsmog/vuln-scout --skill mobile-ios
Clone the repo
git clone --depth 1 https://github.com/allsmog/vuln-scout

Made for: Claude Code.

Or install vuln-scout, the plugin that ships this one along with the rest of its 32 skills, 15 commands, 9 agents.

Wrote 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.

agentmods badge for Mobile iOS Whitebox Audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/allsmog/vuln-scout/mobile-ios/github.svg)](https://agentmods.dev/skills/allsmog/vuln-scout/mobile-ios)
Your own site
<a href="https://agentmods.dev/skills/allsmog/vuln-scout/mobile-ios"><img src="https://agentmods.dev/badge/skills/allsmog/vuln-scout/mobile-ios/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for Mobile iOS Whitebox Audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/allsmog/vuln-scout/mobile-ios"><img src="https://agentmods.dev/badge/skills/allsmog/vuln-scout/mobile-ios.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 819 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00088 $0.00819
Opus 5 $0.00044 $0.00409
Sonnet 5 $0.00018 $0.00164
Haiku 4.5 $0.00009 $0.00082

Measured 11d ago against content hash 3c2adaf786ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

Mobile iOS Whitebox Audit 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 11d 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.

vuln-scout/skills/mobile-ios/SKILL.md · 52 lines

How it starts

The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mobile iOS Whitebox Audit

When this skill applies

The user is reviewing an iOS target. Signals to look for:

  • The target directory has an Info.plist, *.swift, *.m, *.mm, or *.xcodeproj.
  • The conversation mentions WKWebView, NSURLSession, Keychain, ATS, KeychainAccess, ObjC runtime.
  • A previous run produced .claude/findings.json entries whose type starts with ios-*.

Triage anchors

Type What to verify
ios-ats-arbitrary-loads The Info.plist has NSAllowsArbitraryLoads=true. Confirm whether any specific exempt domain is actually needed; otherwise this disables ATS for the entire app.
ios-ats-partial-exemption NSAllowsLocalNetworking / NSAllowsArbitraryLoadsForMedia widens trust. Inventory which hosts the app actually needs over HTTP.
ios-keychain-accessible-always kSecAttrAccessibleAlways / kSecAttrAccessibleAlwaysThisDeviceOnly lets locked-device attackers read the item. Switch to kSecAttrAccessibleWhenUnlockedThisDeviceOnly or kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly.
ios-trust-all-ssl URLSessionDelegate.urlSession(_:didReceive:completionHandler:) returns .useCredential, URLCredential(trust: serverTrust) without SecTrustEvaluate. Catastrophic — replace with explicit pinning.
ios-uiwebview-deprecated UIWebView is deprecated since iOS 12 and has known issues. Migrate to WKWebView.
ios-webview-html-concat loadHTMLString receives an interpolated/concatenated string. If any value originates from a network response or pasteboard, it renders attacker HTML/JS in the app origin.
ios-webview-evaljs-concat evaluateJavaScript builds the JS payload via Swift interpolation. Any escape from a string literal executes attacker JS in the WebView.

Workflow: prefer /vuln-scout:mobile-audit

For iOS targets that include both source and bundle resources, point /vuln-scout:mobile-audit at the project root. The driver discovers */Info.plist and Swift/ObjC sources under src/, Sources/, or Application/.

Read the full file on GitHub · 52 lines

Changes

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.

  1. 11d ago First seen · 52 lines · 88 tokens per session scan A 3c2adaf786ef

Subscribe to this mod's changes

Mobile iOS Whitebox Audit is a skill published in the GitHub repository allsmog/vuln-scout (24 stars, last pushed 3mo ago), licensed MIT. It adds 88 tokens to every session and 819 once invoked, about $0.0004 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.

Claude CodeMobileSecurityappsecclaude-code-pluginsastsemgrepthreat-modeling
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