anti-reversing-techniques

anti-reversing-techniques is a skill for Claude Code, Codex from henryalouf/ruflow. It costs 31 tokens per session (407 once invoked), scanned A, a copy of anti-reversing-techniques, MIT.

A security guide for analyzing protected software, including anti-debugging and obfuscation techniques, for authorized testing, malware analysis, research, or competitions.

In plain words
What is it for?
Use it during an authorized penetration test, malware investigation, CTF exercise, or analysis of software you own or are permitted to examine.
Why use it?
It sets boundaries for work that could otherwise involve bypassing software protections without the owner's permission.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it during an authorized penetration test, malware investigation, CTF exercise, or analysis of software you own or are permitted to examine.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/henryalouf/ruflow/anti-reversing-techniques
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 henryalouf/ruflow --skill anti-reversing-techniques
Clone the repo
git clone --depth 1 https://github.com/henryalouf/ruflow

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 anti-reversing-techniques

README.md
[![agentmods](https://agentmods.dev/badge/skills/henryalouf/ruflow/anti-reversing-techniques/github.svg)](https://agentmods.dev/skills/henryalouf/ruflow/anti-reversing-techniques)
Your own site
<a href="https://agentmods.dev/skills/henryalouf/ruflow/anti-reversing-techniques"><img src="https://agentmods.dev/badge/skills/henryalouf/ruflow/anti-reversing-techniques/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 anti-reversing-techniques

Your own site · 80×15
<a href="https://agentmods.dev/skills/henryalouf/ruflow/anti-reversing-techniques"><img src="https://agentmods.dev/badge/skills/henryalouf/ruflow/anti-reversing-techniques.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 407 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 83% 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 $0.00031 $0.00407
Opus 5 $0.00015 $0.00204
Sonnet 5 $0.00006 $0.00081
Haiku 4.5 $0.00003 $0.00041

Measured 9d ago against content hash 5dec5d859ca3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

anti-reversing-techniques 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 9d 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

83% identical to anti-reversing-techniques — 5 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.

.agents/skills/anti-reversing-techniques/SKILL.md · 46 lines

What it actually says

AUTHORIZED USE ONLY: This skill contains dual-use security techniques. Before proceeding with any bypass or analysis:

  1. Verify authorization: Confirm you have explicit written permission from the software owner, or are operating within a legitimate security context (CTF, authorized pentest, malware analysis, security research)
  2. Document scope: Ensure your activities fall within the defined scope of your authorization
  3. Legal compliance: Understand that unauthorized bypassing of software protection may violate laws (CFAA, DMCA anti-circumvention, etc.)

Legitimate use cases: Malware analysis, authorized penetration testing, CTF competitions, academic security research, analyzing software you own/have rights to

Use this skill when

  • Analyzing protected binaries with explicit authorization
  • Conducting malware analysis or security research in scope
  • Participating in CTFs or approved training exercises
  • Understanding anti-debugging or obfuscation techniques for defense

Do not use this skill when

  • You lack written authorization or a defined scope
  • The goal is to bypass protections for piracy or misuse
  • Legal or policy restrictions prohibit analysis

Instructions

  1. Confirm written authorization, scope, and legal constraints.
  2. Identify protection mechanisms and choose safe analysis methods.
  3. Document findings and avoid modifying artifacts unnecessarily.
  4. Provide defensive recommendations and mitigation guidance.

Safety

  • Do not share bypass steps outside the authorized context.
  • Preserve evidence and maintain chain-of-custody for malware cases.

Refer to resources/implementation-playbook.md for detailed techniques and examples.

Resources

  • resources/implementation-playbook.md for detailed techniques and examples.
Files

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.

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. 9d ago First seen · 46 lines · 31 tokens per session scan A 5dec5d859ca3

Subscribe to this mod's changes

anti-reversing-techniques is a skill published in the GitHub repository henryalouf/ruflow (129 stars, last pushed 3mo ago), licensed MIT. It adds 31 tokens to every session and 407 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 83% identical to anti-reversing-techniques, differing in 5 lines, and is treated as a copy.

Related

Other skills, from other repositories

debug-optimize-lcp

Guides debugging and optimizing Largest Contentful Paint (LCP) using Chrome DevTools MCP tools. Use this skill whenever the user asks about LCP performance, slow page loads, Core Web Vitals optimization, or wants to understand why their page's main content takes too long to appear. Also use when the user mentions…

ChromeDevTools/chrome-devtools-mcp · 99 tokens

systematic-debugging

Use when debugging a failing test, build error, or runtime issue that isn't immediately obvious. Guides a 4-phase root cause analysis instead of random fix attempts.

open-metadata/OpenMetadata · 37 tokens

diagnose

Trace from a reproduced symptom to the source code that causes it. Pin the specific file and approximate line, rate confidence in the cause and clarity of the fix independently, and always propose a concrete fix.

emdash-cms/emdash · 43 tokens

repro-admin

Reproduce an EmDash admin UI bug. Attach a container, start the demo dev server, drive the admin with agent-browser using the dev-bypass session, and capture the reproduction as screenshots plus a replayable transcript.

emdash-cms/emdash · 48 tokens

log-error-digest

Analyze log files to troubleshoot errors, identify peak error periods, and produce error clustering, frequency statistics, and time distribution reports. Supports JSON, syslog, and Nginx formats with automatic detection. Use when a user uploads a .log file and asks to analyze errors, find patterns, debug issues, or…

zebbern/claude-code-guide · 71 tokens

byted-util-volcengine-detect-retry

An orchestration workflow for Volcengine Cloud Detect, a service that checks websites or network endpoints from test locations.

bytedance/agentkit-samples · 101 tokens