apk-reverse

apk-reverse is a skill for Claude Code, Codex from 2233admin/reverse-skill-evolver. It costs 80 tokens per session (2,907 once invoked), scanned A, a copy of apk-reverse, MIT.

A command-line workflow for examining and modifying Android application packages (APKs), the installable files used to distribute Android apps.

In plain words
What is it for?
Use it to inspect Java code, Android manifests, permissions, login and signing logic, security checks, native libraries, or app behavior through Frida hooks.
Why use it?
It organizes the repeated steps of unpacking, reading, changing, rebuilding, signing, and testing an APK, while also supporting runtime inspection.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to inspect Java code, Android manifests, permissions, login and signing logic, security checks, native libraries, or app behavior through Frida hooks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/2233admin/reverse-skill-evolver/apk-reverse
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 2233admin/reverse-skill-evolver --skill apk-reverse
Clone the repo
git clone --depth 1 https://github.com/2233admin/reverse-skill-evolver

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 apk-reverse

README.md
[![agentmods](https://agentmods.dev/badge/skills/2233admin/reverse-skill-evolver/apk-reverse/github.svg)](https://agentmods.dev/skills/2233admin/reverse-skill-evolver/apk-reverse)
Your own site
<a href="https://agentmods.dev/skills/2233admin/reverse-skill-evolver/apk-reverse"><img src="https://agentmods.dev/badge/skills/2233admin/reverse-skill-evolver/apk-reverse/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 apk-reverse

Your own site · 80×15
<a href="https://agentmods.dev/skills/2233admin/reverse-skill-evolver/apk-reverse"><img src="https://agentmods.dev/badge/skills/2233admin/reverse-skill-evolver/apk-reverse.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,907 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 88% copy Near-identical to another mod 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 $0.00080 $0.02907
Opus 5.5 $0.00032 $0.01163
Sonnet 5.5 $0.00016 $0.00581
Haiku 4.5 $0.00008 $0.00291

Measured 10d ago against content hash 5a7250472dd7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

apk-reverse 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 10d ago.

The scan reads SKILL.md. This mod also ships 7 executable files (scripts/decode.ps1, scripts/decode.sh, scripts/frida-run.ps1, …), 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.

Origin

This is a copy

88% identical to apk-reverse — 44 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/apk-reverse/SKILL.md · 378 lines

How it starts

The opening of the file, as written. The whole thing — 378 lines — stays where its author put it; the contents beside it link to each section on GitHub.

APK 逆向 CLI 作业规范

适用范围

当任务属于以下场景时优先使用本 skill:

  • 分析 APK 的 Java 业务逻辑
  • 定位登录、签名、风控、证书校验、root 检测
  • 查看与修改 AndroidManifest.xml
  • 查看与修改 smali
  • 重打包 APK
  • 用 Frida 做 Java/native 动态 Hook
  • APK 内含 .so 时切到 native 分析

当前机器已验证可用的 CLI 工具

  • jadx 1.5.5
  • apktool 3.0.2
  • frida-ps 17.9.6
  • adb
  • java

优先使用脚本的场景

以下流程高频且参数容易出错,优先用 skill 自带脚本:

  • 一次性完成 jadx + apktool 落盘并产出摘要:scripts/decode.ps1
  • Frida 设备检查、进程列举、spawn/attach 注入:scripts/frida-run.ps1
  • 重建、对齐、签名、安装 APK:scripts/rebuild-sign-install.ps1
  • 快速抽取 Manifest 关键组件与权限:scripts/manifest-summary.ps1

以下一行命令保持直接调用,不单独封装:

  • adb devices
  • adb logcat
  • frida-ps -U
  • jadx --version
  • apktool --version

自带脚本

scripts/decode.ps1

用途:

  • 统一跑 jadx 和 apktool
  • 默认在原 APK 同目录创建任务输出目录
  • 输出 package、java_files、smali_dirs、so_files 等摘要
  • 兼容 jadx 部分反编译错误但仍然有可用产物的情况

示例:

pwsh -File "<skill-root>\apk-reverse\scripts\decode.ps1" -ApkPath "D:\DOWNLOAD\app.apk" -Clean
pwsh -File "<skill-root>\apk-reverse\scripts\decode.ps1" -ApkPath "D:\DOWNLOAD\app.apk" -Name demo -SkipJadx

scripts/frida-run.ps1

用途:

  • 统一 Frida 的设备、进程、spawn/attach 入口
  • 避免手写参数时混淆 -f、-n、-U

示例:

pwsh -File "<skill-root>\apk-reverse\scripts\frida-run.ps1" -ListDevices
pwsh -File "<skill-root>\apk-reverse\scripts\frida-run.ps1" -Usb -ListProcesses
pwsh -File "<skill-root>\apk-reverse\scripts\frida-run.ps1" -Usb -Spawn -Package com.example.app -ScriptPath "D:\hooks\test.js"

scripts/rebuild-sign-install.ps1

用途:

  • apktool b 重建 APK
  • zipalign 对齐
  • apksigner 签名与验签
  • 可选直接 adb install

示例:

pwsh -File "<skill-root>\apk-reverse\scripts\rebuild-sign-install.ps1" -ProjectDir "C:\work\apktool_out" -Clean
pwsh -File "<skill-root>\apk-reverse\scripts\rebuild-sign-install.ps1" -ProjectDir "C:\work\apktool_out" -Install -Reinstall -DeviceSerial "127.0.0.1:7555"

说明:

  • 默认生成并复用调试 keystore
  • 默认输出到 ProjectDir 同目录,便于和原始包、解包目录放在一起

scripts/manifest-summary.ps1

Read the full file on GitHub · 378 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. 10d ago Changed 5a7250472dd7
  2. 1mo ago First seen · 378 lines · 80 tokens per session scan A 06fd45ba992e

Subscribe to this mod's changes

apk-reverse is a skill published in the GitHub repository 2233admin/reverse-skill-evolver (24 stars, last pushed yesterday), licensed MIT. It adds 80 tokens to every session and 2,907 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to apk-reverse, differing in 44 lines, and is treated as a copy.

Related

Other skills, from other repositories

android-reverse-engineering

Decompile Android APK, XAPK, JAR, and AAR files using jadx or Fernflower/Vineflower. Reverse engineer Android apps, extract HTTP API endpoints, trace call flows from UI to network layer, and analyze runtime behavior with Frida, network capture, JNI/SO inspection, and signature generation. Use when the user wants to…

CreditTone/hooker · 107 tokens

android-reverse-engineering

Decompile Android APK, XAPK, JAR, and AAR files using jadx or Fernflower/Vineflower. Reverse engineer Android apps, extract HTTP API endpoints, trace call flows from UI to network layer, and analyze runtime behavior with Frida, network capture, JNI/SO inspection, and signature generation. Use when the user wants to…

CreditTone/android-reverse-engineering-skill · 107 tokens

conducting-mobile-application-penetration-test

Perform a mobile application penetration test on Android and iOS apps to identify insecure data storage, certificate pinning bypass, API vulnerabilities, binary protections, and runtime manipulation using Frida, Objection, and MobSF.

RobotFlow-Labs/skills-repo · 53 tokens

analyzing-ios-app-security-with-objection

Runtime iOS app security testing with Objection (Frida): inspect keychain and filesystem data, explore app internals at runtime, and validate/bypass client-side protections during authorized mobile assessments.

mukul975/Anthropic-Cybersecurity-Skills · 49 tokens

analyzing-android-malware-with-apktool

Perform static analysis of Android APK malware using apktool for resource decompilation, jadx for Java source recovery, and androguard for manifest inspection, dangerous permission-combination detection, and identification of obfuscated code, dynamic code loading, and reflection-based API calls. Use to statically…

mukul975/Anthropic-Cybersecurity-Skills · 84 tokens

simvyn

Operate iOS Simulators, Android Emulators, and connected mobile devices with Simvyn. Use for device discovery, app installation and launch, screenshots, logs, deep links, location simulation, app data inspection, device settings, and reusable device workflows through the Simvyn CLI or dashboard.

pranshuchittora/simvyn · 63 tokens