ljagiello/ctf-skills · ctf-reverse/SKILL.md

ctf-reverse skillA

ctf-reverse is agent-read markdown (skill) from ljagiello/ctf-skills: Provides reverse engineering techniques for CTF challenges. Use when the main job is to understand how a compiled, obfuscated, packed, or virtualized target works before exploiting or solving it, including binaries, APKs, WASM, firmware, custom VMs, bytecode, game clients, malware-like loaders, and anti-debug or anti-analysis logic. Do not use it when the vulnerability is already understood and the remaining task is exploitation; use pwn instead. Do not use it for pure web workflows, log or disk.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add ljagiello/ctf-skills/ctf-reverse@git:20260912.61c2efe
Exact content
mdr add ljagiello/ctf-skills/ctf-reverse@sha256:c895e9e53f3f8c23

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_vcuzpznin6l4whhc.svg)](https://markdownregistry.com/a/art_vcuzpznin6l4whhc)

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Versions

versioncommittedcommitsizeaudit
git:20260912.61c2efe latest2026-09-12 61c2efe 13,279 BA view · diff
git:20260417.b80ec3f2026-04-17 b80ec3f 12,960 BA view · diff
git:20260413.730d82f2026-04-13 730d82f 12,574 BA view · diff
git:20260403.008fb992026-04-03 008fb99 11,819 BA view · diff
git:20260403.1c010be2026-04-03 1c010be 11,472 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (13279 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

ljagiello/ctf-skills · 3,261 stars · license MIT · pushed 2026-09-12 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_vcuzpznin6l4whhc
GET https://markdownregistry.com/api/v1/resolve?ref=ljagiello/ctf-skills/ctf-reverse
GET https://markdownregistry.com/api/v1/blob/c895e9e53f3f8c23df0bc94749db6244d57b629a38417d531a7a2199247f2da5