17-mobile-security

17-mobile-security is a skill for Claude Code from Masriyan/Claude-Code-CyberSecurity-Skill. It costs 46 tokens per session (2,343 once invoked), scanned A, original, no licence file.

A set of procedures for assessing Android and iOS applications through code inspection and runtime testing. It uses OWASP mobile security standards and requires authorization.

In plain words
What is it for?
It is for inspecting APK and IPA files, checking mobile security controls, guiding runtime instrumentation, reviewing keychain or keystore use, and triaging potentially malicious apps.
Why use it?
It helps identify unsafe storage, transport, platform interactions, and other mobile-app weaknesses in a documented way.

Skill for Claude Code

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

Part of the cybersecurity plugin — 22 skills shipped together

Good fit It is for inspecting APK and IPA files, checking mobile security controls, guiding runtime instrumentation, reviewing keychain or keystore use, and triaging potentially malicious apps.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/masriyan/claude-code-cybersecurity-skill/17-mobile-security
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 Masriyan/Claude-Code-CyberSecurity-Skill --skill 17-mobile-security
Clone the repo
git clone --depth 1 https://github.com/Masriyan/Claude-Code-CyberSecurity-Skill

Made for: Claude Code.

Or install cybersecurity, the plugin that ships this one along with the rest of its 22 skills.

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 17-mobile-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/masriyan/claude-code-cybersecurity-skill/17-mobile-security/github.svg)](https://agentmods.dev/skills/masriyan/claude-code-cybersecurity-skill/17-mobile-security)
Your own site
<a href="https://agentmods.dev/skills/masriyan/claude-code-cybersecurity-skill/17-mobile-security"><img src="https://agentmods.dev/badge/skills/masriyan/claude-code-cybersecurity-skill/17-mobile-security/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 17-mobile-security

Your own site · 80×15
<a href="https://agentmods.dev/skills/masriyan/claude-code-cybersecurity-skill/17-mobile-security"><img src="https://agentmods.dev/badge/skills/masriyan/claude-code-cybersecurity-skill/17-mobile-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,343 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
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 95
    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 28
    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 73
    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 76
    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 83
    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.
How audits are shown
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 $0.00046 $0.02343
Opus 5.5 $0.00018 $0.00937
Sonnet 5.5 $0.00009 $0.00469
Haiku 4.5 $0.00005 $0.00234

Measured 5d ago against content hash 0a305d09058d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

17-mobile-security 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 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/apk_analyzer.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/17-mobile-security/SKILL.md · 204 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

2 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.

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. 5d ago Changed · +9 lines 0a305d09058d
  2. 10d ago Changed · +22 lines 3075becd81d2
  3. 1mo ago Changed e17cd2ea4741
  4. 1mo ago First seen · 173 lines · 46 tokens per session scan A ebc9f78d5488

Subscribe to this mod's changes

17-mobile-security is a skill published in the GitHub repository Masriyan/Claude-Code-CyberSecurity-Skill (512 stars, last pushed 6d ago), with no licence file. It adds 46 tokens to every session and 2,343 once invoked, about $0.0002 per session on Opus 5.5. 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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