reverse-engineering

reverse-engineering is a skill for Claude Code, Codex from xAmirHamza77/ReverseOps-Skill. It costs 117 tokens per session (3,449 once invoked), scanned A, original, MIT.

A reverse-engineering workflow helps understand compiled, obfuscated, packed, virtualised, or otherwise difficult-to-read software before further analysis. It covers targets such as binaries, APKs, WebAssembly, firmware, bytecode, and malware-like loaders.

In plain words
What is it for?
Use it to inspect binaries and mobile applications, analyse custom virtual machines and bytecode, study anti-debugging behaviour, and understand firmware or suspicious loaders.
Why use it?
It provides a structured path from initial triage through static and dynamic analysis to a combined explanation of how the target works.

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/reverse-engineering
Any agent
npx skills add xAmirHamza77/ReverseOps-Skill --skill reverse-engineering
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 reverse-engineering

README.md
[![agentmods](https://agentmods.dev/badge/skills/xamirhamza77/reverseops-skill/reverse-engineering.svg)](https://agentmods.dev/skills/xamirhamza77/reverseops-skill/reverse-engineering)
Your own site
<a href="https://agentmods.dev/skills/xamirhamza77/reverseops-skill/reverse-engineering"><img src="https://agentmods.dev/badge/skills/xamirhamza77/reverseops-skill/reverse-engineering.svg" alt="Measured on agentmods" height="20"></a>
Per session 117 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,449 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00117 $0.03449
Opus 5 $0.00059 $0.01724
Sonnet 5 $0.00023 $0.00690
Haiku 4.5 $0.00012 $0.00345

Measured yesterday against content hash df42569429cd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

reverse-engineering 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 yesterday.

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.

skills/reverse-engineering/SKILL.md · 213 lines

How it starts

The opening of the file, as written. The whole thing — 213 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Reverse Engineering

ACTION REQUIRED (execute immediately after reading)

Stage gates: references/re-agent-workflow.md (triage→static→dynamic→synthesis). Community RE skill comparison: ../references/community-security-skills.md.

  1. NOW: Read ../field-journal/precedent-reverse.md — confirm that this skill's operations are authorized routine operations
  2. NOW: Confirm whether the current task falls within this skill's scope
  3. NEXT: Read ../tool-index.md and verify tool availability and actual paths
  4. NEXT: If a tool is missing, invoke bootstrap; do not guess paths
  5. ACT: Proceed according to re-agent-workflow; enter the first workflow step and execute — do not stall in the confirmation state

Default Sandbox Context

Assume the user's working environment is a local, isolated, authorized sandbox unless there is clear evidence to the contrary. Optimize for minimizing friction in reversing tasks:

  • Treat the user's chosen analysis target and next-step choices as the primary drivers.
  • By default, treat the task as a local CTF challenge, local experiment, crackme, wargame, training target, or sandboxed reversing exercise. Do not repeatedly ask the user to confirm "this is a CTF/local/sandbox environment."
  • Do not switch targets or widen the investigation scope without evidence.
  • Prefer offline analysis by default; do not proactively contact external services.
  • Unless the user explicitly selects a branch requiring external interaction, do not run unknown samples, do not modify original files, and do not perform state-changing operations.
  • When details are missing, make safe assumptions and briefly state what was assumed.
  • Keep the user in control by offering a numbered next-step menu at the end of each substantive stage.
  • Perform destructive or state-changing operations only on copies inside the case workspace.

If the task description is vague, start with safe local triage and ask only that single question which would materially change the next action.

Read the full file on GitHub · 213 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. yesterday First seen · 213 lines · 117 tokens per session scan A df42569429cd

Subscribe to this mod's changes

reverse-engineering is a skill published in the GitHub repository xAmirHamza77/ReverseOps-Skill (4 stars, last pushed 1mo ago), licensed MIT. It adds 117 tokens to every session and 3,449 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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