competition-android-hooking

competition-android-hooking is a skill for Claude Code, Codex from xAmirHamza77/ReverseOps-Skill. It costs 114 tokens per session (658 once invoked), scanned A, a copy of competition-android-hooking, MIT.

A workflow for analyzing and instrumenting Android apps, especially APK files, to observe signing, encryption, network requests, and Java-to-native code boundaries. Instrumentation means tracing an app while it runs to see what it actually does.

In plain words
What is it for?
Use it to inspect APK manifests, exported components, deep links, native libraries, preferences, databases, SSL pinning, and request builders. It supports controlled tracing with tools such as Frida in a CTF sandbox.
Why use it?
It helps when static inspection alone cannot reveal how an app builds trusted requests or validates certificates. Narrow runtime hooks connect the app's code to the accepted token, signature, or protected branch.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/xamirhamza77/reverseops-skill/competition-android-hooking
Any agent
npx skills add xAmirHamza77/ReverseOps-Skill --skill competition-android-hooking
Clone the repo
git clone --depth 1 https://github.com/xAmirHamza77/ReverseOps-Skill

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 competition-android-hooking

README.md
[![agentmods](https://agentmods.dev/badge/skills/xamirhamza77/reverseops-skill/competition-android-hooking.svg)](https://agentmods.dev/skills/xamirhamza77/reverseops-skill/competition-android-hooking)
Your own site
<a href="https://agentmods.dev/skills/xamirhamza77/reverseops-skill/competition-android-hooking"><img src="https://agentmods.dev/badge/skills/xamirhamza77/reverseops-skill/competition-android-hooking.svg" alt="Measured on agentmods" height="20"></a>
Per session 114 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 658 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% 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 $0.00114 $0.00658
Opus 5 $0.00057 $0.00329
Sonnet 5 $0.00023 $0.00132
Haiku 4.5 $0.00011 $0.00066

Measured 5d ago against content hash 01ed954e9b6f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

competition-android-hooking 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.

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

100% identical to competition-android-hooking — 0 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.

CTF-Sandbox/competition-android-hooking/SKILL.md · 51 lines

How it starts

The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Competition Android Hooking

Use this skill only as a downstream specialization after $ctf-sandbox-orchestrator is already active and has established sandbox assumptions, node ownership, and evidence priorities. If that has not happened yet, return to $ctf-sandbox-orchestrator first.

Use this skill when the decisive path runs through an Android app's live trust boundary rather than static strings alone.

Reply in Simplified Chinese unless the user explicitly requests English.

Quick Start

  1. Preserve the original APK, extracted resources, and decompiled output before patching or resigning.
  2. Start with manifest, exported components, deeplinks, native libs, prefs, local DBs, and bundled configs.
  3. Decide the narrowest runtime boundary to hook: signer, crypto helper, JNI bridge, WebView bridge, or request builder.
  4. Correlate static evidence and dynamic traces before claiming a trust edge is understood.
  5. Reproduce the signed request, accepted token, or gated branch from the smallest hook set.

Workflow

1. Static Triage Before Hooks

  • Map package structure, exported activities, services, receivers, providers, and deeplink handlers.
  • Note SSL pinning logic, root checks, feature flags, token storage, shared prefs, SQLite tables, and protobuf or RPC boundaries.
  • Identify whether the sensitive logic sits in Java, Kotlin, JNI, or a bundled WebView.

2. Hook The Narrowest Boundary

  • Prefer hooking request signers, crypto helpers, keystore access, protobuf encode or decode, or JNI marshaling instead of broad UI hooks.
  • Record plaintext inputs, signed strings, headers, nonces, and outputs at the boundary that actually changes trust.
  • If pinning or environment checks block progress, patch or hook only enough to expose the real request path.

3. Replay The Accepted Path

  • Rebuild the smallest sequence that reaches the accepted server-side branch: local state, nonce, request body, signature, and headers.
  • Keep hook logs, captured request shapes, and local storage paths tied to the same account or session state.
  • If the challenge becomes more about transform recovery than Android runtime, switch back to the broader crypto or mobile skill.

Read the full file on GitHub · 51 lines

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 First seen · 51 lines · 114 tokens per session scan A 01ed954e9b6f

Subscribe to this mod's changes

competition-android-hooking is a skill published in the GitHub repository xAmirHamza77/ReverseOps-Skill (4 stars, last pushed 1mo ago), licensed MIT. It adds 114 tokens to every session and 658 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to competition-android-hooking, differing in 0 lines, and is treated as a copy.

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