HackSkills is an organized knowledge base of installable skills that gives AI agents practical security knowledge across areas such as web security, privilege escalation, reverse engineering, and digital forensics. It is intended for bug bounty work, penetration testing, CTF competitions, and authorized security research. The catalogue entries are the project's own master, category, and topic skills.
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.
npx skills add yaklang/hack-skills --skill android-pentesting-tricksgit clone --depth 1 https://github.com/yaklang/hack-skillsWrote 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.
[](https://agentmods.dev/skills/yaklang/hack-skills/android-pentesting-tricks)<a href="https://agentmods.dev/skills/yaklang/hack-skills/android-pentesting-tricks"><img src="https://agentmods.dev/badge/skills/yaklang/hack-skills/android-pentesting-tricks/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.
<a href="https://agentmods.dev/skills/yaklang/hack-skills/android-pentesting-tricks"><img src="https://agentmods.dev/badge/skills/yaklang/hack-skills/android-pentesting-tricks.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket warn
- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 5 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high YARA Match · line 3 YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).Fix: Remove offensive tool references and exploit code. Legitimate agent skills should not contain penetration testing tools, exploit frameworks, or reconnaissance utilities.
- high Prompt Injection · line 65 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
- high Tool Misuse · line 219 Tool calls are chained to bypass individual safety checks or escalate capabilities beyond what any single tool call would allow.Fix: Limit tool chaining depth and validate the output of each tool before passing it to the next. Require explicit user approval for multi-step chains.
- high Prompt Injection · line 259 Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
- medium Privilege Escalation · line 35 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
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 | $0.00053 | $0.03286 |
| Opus 5.5 | $0.00021 | $0.01314 |
| Sonnet 5.5 | $0.00011 | $0.00657 |
| Haiku 4.5 | $0.00005 | $0.00329 |
Grade A, and why
android-pentesting-tricks 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 1mo 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.
Asks for rootlowPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
adb shell "chmod 755 /data/local/tmp/frida-server-16.x.x-android-arm64" Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Copies of this mod
6 near-identical copies found in the catalogue:
- android-pentesting-tricks — 100% identical, 0 lines differ
- android-pentesting-tricks — 100% identical, 0 lines differ
- android-pentesting-tricks — 100% identical, 0 lines differ
- android-pentesting-tricks — 100% identical, 0 lines differ
- android-pentesting-tricks — 100% identical, 0 lines differ
- android-pentesting-tricks — 89% identical, 4 lines differ
How it starts
The opening of the file, as written. The whole thing — 370 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SKILL: Android Pentesting Tricks — Expert Attack Playbook
AI LOAD INSTRUCTION: Expert Android application security testing techniques. Covers SSL pinning bypass (Frida/Objection/LSPosed), component exposure, WebView exploitation, intent redirection, root detection bypass, and Play Integrity evasion. Base models miss Frida hook specifics and multi-layer bypass chains.
0. RELATED ROUTING
Before going deep, consider loading:
- mobile-ssl-pinning-bypass for in-depth cross-platform SSL pinning bypass techniques and framework-specific hooks
- ios-pentesting-tricks when also testing the iOS version of the same app
- api-sec for backend API security testing once traffic is intercepted
Advanced Reference
Also load FRIDA_SCRIPTS.md when you need:
- Ready-to-use Frida script templates for common Android testing tasks
- Detailed hook points for OkHttp, Retrofit, Volley, WebView
- Root detection bypass script collection
1. SSL PINNING BYPASS
1.1 Frida Universal Bypass
# Install Frida server on device
adb push frida-server-16.x.x-android-arm64 /data/local/tmp/
adb shell "chmod 755 /data/local/tmp/frida-server-16.x.x-android-arm64"
adb shell "/data/local/tmp/frida-server-16.x.x-android-arm64 &"
# Universal SSL pinning bypass
frida -U -l ssl_pinning_bypass.js -f com.target.app --no-pause
| Hook Point | Library/Class | Coverage |
|---|---|---|
X509TrustManager.checkServerTrusted |
Android SDK | All standard HTTPS |
OkHttpClient.Builder.sslSocketFactory |
OkHttp 3.x/4.x | Square OkHttp |
CertificatePinner.check |
OkHttp 3.x/4.x | OkHttp pinning |
HttpsURLConnection.setSSLSocketFactory |
Android SDK | Legacy HTTPS |
SSLContext.init |
Android SDK | Custom SSL contexts |
WebViewClient.onReceivedSslError |
WebView | WebView SSL errors |
TrustManagerFactory.getTrustManagers |
Android SDK | Factory-created TMs |
What ships with it
1 file 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.
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.
- 1mo ago First seen · 370 lines · 53 tokens per session scan A 5e8575899292
android-pentesting-tricks is a skill published in the GitHub repository yaklang/hack-skills (2,509 stars, last pushed 1mo ago), licensed MIT. It adds 53 tokens to every session and 3,286 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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