mobile-ctf

mobile-ctf is a skill for Claude Code, Codex from AeonDave/malskill. It costs 44 tokens per session (2,794 once invoked), scanned A, original, no licence file.

A guide to solving mobile capture-the-flag (CTF) challenges involving Android and iOS packages, backups, app bytecode, databases, configuration files, keys, and Unity-based apps.

In plain words
What is it for?
Use it to examine APK, AAB, and IPA files, inspect Android bytecode and resources, analyze SQLite databases and backups, and investigate Unity or IL2CPP apps.
Why use it?
It brings together the steps needed to inspect mobile applications and their stored data during a security puzzle.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to examine APK, AAB, and IPA files, inspect Android bytecode and resources, analyze SQLite databases and backups, and investigate Unity or IL2CPP apps.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aeondave/malskill/mobile-ctf
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 AeonDave/malskill --skill mobile-ctf
Clone the repo
git clone --depth 1 https://github.com/AeonDave/malskill

Made for: Claude Code, Codex.

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-ctf

README.md
[![agentmods](https://agentmods.dev/badge/skills/aeondave/malskill/mobile-ctf.svg)](https://agentmods.dev/skills/aeondave/malskill/mobile-ctf)
Your own site
<a href="https://agentmods.dev/skills/aeondave/malskill/mobile-ctf"><img src="https://agentmods.dev/badge/skills/aeondave/malskill/mobile-ctf.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,794 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00044 $0.02794
Opus 5 $0.00022 $0.01397
Sonnet 5 $0.00009 $0.00559
Haiku 4.5 $0.00004 $0.00279

Measured 4d ago against content hash dd569095bf7e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

mobile-ctf scanned grade A 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 4d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl "https://<project-id-from-config>.firebaseio.com/.json"
offensive-ctf/mobile-ctf/SKILL.md · 290 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 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. 4d ago First seen · 290 lines · 44 tokens per session scan A dd569095bf7e

Subscribe to this mod's changes

mobile-ctf is a skill published in the GitHub repository AeonDave/malskill (18 stars, last pushed 3d ago), with no licence file. It adds 44 tokens to every session and 2,794 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

Other skills, from other repositories

google-mobile-ads-android-migrate-to-next-gen

Migrates Android applications from the old, legacy Google Mobile Ads (GMA) SDK (com.google.android.gms:play-services-ads) to the new GMA Next-Gen SDK (com.google.android.libraries.ads.mobile.sdk:ads-mobile-sdk). Provides comprehensive mapping tables for imports, classes, and method signatures to help determine…

google/skills · 105 tokens

google-mobile-ads-validate

Validates a project's Google Mobile Ads (GMA) SDK integration for iOS, Android, or Unity projects. Use when conducting a full pre-launch audit of an app that integrates GMA SDK or when validating any individual GMA SDK integration checks, such as when validating ad unit IDs and ad formats, SKAdNetwork IDs, mediation…

google/skills · 84 tokens

camerax

Provide technical guidance for Android camera development with CameraX. Use when implementing camera features, handling asynchronous recording lifecycles, wiring low-level hardware interop using CameraX, or integrating ML Kit or Media3 effects.

android/skills · 47 tokens

appfunctions

Analyzes Android apps to identify key user workflows for AppFunctions such as creating a note, playing media, or sending an automated or AI agent triggered message, voice commands, or system shortcuts, without needing to open the app UI. Generates Kotlin code to expose these workflows to the Android system, allowing…

android/skills · 89 tokens

android-profiler

Manages Android performance profiling and debugging. Triggers when the user asks to record or analyze Android performance data, such as system traces, heap dumps, method recordings, callstack samples, memory allocations, or investigate bottlenecks, jank, memory leaks, and app startup issues on Android, or when the…

android/skills · 91 tokens

kotlin-tooling-agp9-migration

Migrates Kotlin Multiplatform (KMP) projects to Android Gradle Plugin 9.0+. Handles plugin replacement (com.android.kotlin.multiplatform.library), module splitting, DSL migration, and the new default project structure. Use when upgrading AGP, when build fails due to KMP+AGP incompatibility, or when the user mentions…

Kotlin/kotlin-agent-skills · 105 tokens