A guide to examining and changing Android APK files, which are installable Android app packages. It covers unpacking, Java and native-code analysis, smali changes, runtime hooks, rebuilding, and signing.

Use it to analyze an owned or authorized APK, inspect manifests and app logic, modify smali, rebuild and sign packages, or investigate runtime behavior with Frida.

It gives a structured way to inspect how an Android app works during an authorized assessment. The required permission checks help prevent testing systems without the owner's approval.

apk-reverse — Skill for Claude Code and Codex by sickn33

About the project

AAS Core is a local control plane for coding agents that lets them search a large catalogue of skills, choose a stack, validate it, and create a reproducible plan. It is used to assemble and review agent workflows through its CLI, local MCP server, catalogue, plugins, and Workbench. The catalogue add-ons provide the skills, plugins, bundles, and workflows that AAS Core helps agents select and validate.

sickn33/agentic-awesome-skills · 46,184 stars · on GitHub · sickn33.github.io

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 sickn33/agentic-awesome-skills --skill apk-reverse

Clone the repo

git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills

Made for: Claude Code, Codex.

Or install agentic-awesome-skills, the plugin that ships this one along with the rest of its 196 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/sickn33/agentic-awesome-skills/apk-reverse/github.svg)](https://agentmods.dev/skills/sickn33/agentic-awesome-skills/apk-reverse)

Your own site

<a href="https://agentmods.dev/skills/sickn33/agentic-awesome-skills/apk-reverse"><img src="https://agentmods.dev/badge/skills/sickn33/agentic-awesome-skills/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/sickn33/agentic-awesome-skills/apk-reverse"><img src="https://agentmods.dev/badge/skills/sickn33/agentic-awesome-skills/apk-reverse.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,788 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. Third-party audits

Snyk pass 7 Sept 2026
NVIDIA SkillSpector pass 7 Sept 2026

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.

Model	Per session	Once invoked
Fable 5.1	$0.00048	$0.03788
Opus 5	$0.00024	$0.01894
Sonnet 5	$0.00010	$0.00758
Haiku 4.5	$0.00005	$0.00379

Measured 4d ago against content hash bc34c43193ff, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

apk-reverse 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.

- Magisk/脚本格机特征与远程 curl|sh（AR/AS）→ 特征与 URL 入证，**不执行**破坏命令 <!-- security-allowlist: curl-pipe-bash -->

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

apk-reverse — 100% identical, 0 lines differ

plugins/agentic-awesome-skills-claude/skills/apk-reverse/SKILL.md · 439 lines

How it starts

The opening of the file, as written. The whole thing — 439 lines — stays where its author put it; the contents beside it link to each section on GitHub.

⚠️ AUTHORIZED USE ONLY This skill is for educational purposes or authorized security assessments only. You must have explicit, written permission from the system owner before using this tool. Misuse of this tool is illegal and strictly prohibited.

Mandatory confirmation gate Before running any command that probes, exploits, changes, persists on, extracts data from, or attempts credential access against a target:

Ask the user to state the exact target URL, IP, account, or resource.

Ask the user to confirm written authorization and the permitted scope.

Show the exact command(s) and explain their expected effect.

Wait for explicit confirmation in the current conversation.

Without that confirmation, remain read-only and provide defensive guidance only. Prefer a sandbox, disposable VM, or controlled lab.

When to Use

Analyzing or modifying an Android APK during an authorized assessment.
Hooking runtime behavior of an app you own or are cleared to test.

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

Read the full file on GitHub · 439 lines

Files

What ships with it

4 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.

4d ago First seen · 439 lines · 48 tokens per session scan A bc34c43193ff

Subscribe to this mod's changes

apk-reverse is a skill published in the GitHub repository sickn33/agentic-awesome-skills (46,184 stars, last pushed yesterday), licensed MIT. It adds 48 tokens to every session and 3,788 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 2026-09-05.

Claude Code Mobile Security agentic-skills ai-agents ai-workflows antigravity mcp

build-nitro-modules

Builds React Native Nitro Modules from scratch in a monorepo. Scaffolds with Nitrogen, authors HybridObject TypeScript specs, generates native boilerplate, implements in C++/Swift/Kotlin, wires an example app, and prepares for npm publishing. Use when creating a new Nitro Module, implementing native functionality via…

Marshanda14816/agent-skills · 84 tokens

apk-reverse