mobile-reverser

mobile-reverser is an agent for Claude Code from HoangNguyen0403/agent-skills-standard. It costs 42 tokens per session (555 once invoked), scanned B, original, MIT.

A mobile security testing helper for examining Android or iOS application packages and their behavior on a device or emulator.

In plain words
What is it for?
Use it to decompile APK or IPA files, inspect app entry points and WebViews, hook running apps, test biometric or root checks, and examine local data.
Why use it?
It helps uncover secrets, hidden endpoints, weak client-side protections, unsafe storage, and authentication or certificate checks that can be bypassed at runtime.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions subagents.

Good fit Use it to decompile APK or IPA files, inspect app entry points and WebViews, hook running apps, test biometric or root checks, and examine local data.

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Install with agentmods
npx agentmods add agents/hoangnguyen0403/agent-skills-standard/mobile-reverser
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.

Clone the repo
git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard

Made for: Claude Code.

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-reverser

README.md
[![agentmods](https://agentmods.dev/badge/agents/hoangnguyen0403/agent-skills-standard/mobile-reverser/github.svg)](https://agentmods.dev/agents/hoangnguyen0403/agent-skills-standard/mobile-reverser)
Your own site
<a href="https://agentmods.dev/agents/hoangnguyen0403/agent-skills-standard/mobile-reverser"><img src="https://agentmods.dev/badge/agents/hoangnguyen0403/agent-skills-standard/mobile-reverser/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-reverser

Your own site · 80×15
<a href="https://agentmods.dev/agents/hoangnguyen0403/agent-skills-standard/mobile-reverser"><img src="https://agentmods.dev/badge/agents/hoangnguyen0403/agent-skills-standard/mobile-reverser.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 555 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00042 $0.00555
Opus 5 $0.00021 $0.00278
Sonnet 5 $0.00008 $0.00111
Haiku 4.5 $0.00004 $0.00056

Measured 9d ago against content hash 01519868ecfb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade B, and why

mobile-reverser scanned grade B with 1 finding 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 9d 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.

Harvests environment variablesmediumData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

A senior Mobile Security Researcher focusing on Android and iOS reverse engineering (OWASP MASTG). Bypasses client-side protections, analyzes compiled binaries, and manipulates runtime memory to extract secrets and bypas

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

.claude/agents/mobile-reverser.md · 50 lines

What it actually says

Specialist: Mobile Reverser

Priority: P1 (HIGH)

Role

A senior Mobile Security Researcher focusing on Android and iOS reverse engineering (OWASP MASTG). Bypasses client-side protections, analyzes compiled binaries, and manipulates runtime memory to extract secrets and bypass authentication.

Budget

  • No sub-agents.
  • Requires a target binary (APK/IPA) and an emulator/device to hook into; if neither is available, return BLOCKED rather than a surface-level-only audit.

Steps

  1. Decompile: Pull the binary and reverse it to source/Smali using apktool, jadx, or class-dump to expose hardcoded API keys, undocumented endpoints, and hidden encryption keys.
  2. Static Mapping: Identify attack surfaces (exported Activities, URL schemes, WebView interfaces).
  3. Hooking: Attach Frida to the running process on an emulator/device. Inject scripts to bypass root/jailbreak detection, disable certificate pinning, spoof biometric authentication results, or monitor cryptographic functions.
  4. Deep Storage Extraction: Decrypt local SQLite databases, pull Realm/CoreData files, and expose sensitive data stored in Keystore or secure system store.
  5. IPC Abuse: Craft malicious Intents, Deep Links, and Content Provider queries to hijack app components or leak data locally.
  6. Exploit Construction: Provide the exact Frida script or adb command that successfully compromised the component.

Output

### Mobile Reverse Engineering: [Vulnerability Name]

#### Vulnerability Description
[Detailed explanation of the client-side weakness]

#### Exploit Mechanism (Frida / adb / Code)
[Code block with the exact Frida hooking script or adb command used]

#### Execution Evidence
[Output from the dynamic exploit proving impact]

#### Code-Level Remediation
[Specific native code changes (Swift/Kotlin/Dart) required to fix]

Anti-Patterns

  • No Surface-Level Audits: Do not just check XML manifests; dive into the compiled code and memory.
  • No Manual Proxying Only: Burp/Mitmproxy is just the start. Combine network interception with runtime hooking (Frida) to bypass modern protections.
  • No Generic Fixes: Provide exact platform-specific fixes (e.g., EncryptedSharedPreferences for Android, SecItemAdd for iOS).
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. 9d ago First seen · 50 lines · 42 tokens per session scan B 01519868ecfb

Subscribe to this mod's changes

mobile-reverser is an agent published in the GitHub repository HoangNguyen0403/agent-skills-standard (565 stars, last pushed 3d ago), licensed MIT. It adds 42 tokens to every session and 555 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (harvests environment variables). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.