ljagiello/ctf-skills · solve-challenge/SKILL.md

solve-challenge skillA

solve-challenge is agent-read markdown (skill) from ljagiello/ctf-skills: Solves CTF challenges by performing first-pass triage, identifying the dominant category, and routing execution to the right specialized ctf-* skill. Use when the user gives you a challenge bundle, a remote service, a suspicious file, or only a vague challenge description and you must determine where to start. Do not use it when the category is already clear and a specialized skill can be invoked directly; this is the dispatcher and recon entrypoint, not the deepest reference for category-specif.

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/solve-challenge@git:20260912.61c2efe
Exact content
mdr add ljagiello/ctf-skills/solve-challenge@sha256:86e37d7ff93ecffa

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_2fmqmoo66f337pbn.svg)](https://markdownregistry.com/a/art_2fmqmoo66f337pbn)

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Versions

versioncommittedcommitsizeaudit
git:20260912.61c2efe latest2026-09-12 61c2efe 9,183 BA view · diff
git:20260413.730d82f2026-04-13 730d82f 8,897 BA view · diff
git:20260404.e1691752026-04-04 e169175 8,910 BA view · diff
git:20260331.2e9fe4a2026-03-31 2e9fe4a 8,144 BA view · diff
git:20260327.40100a92026-03-27 40100a9 7,988 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 (9183 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_2fmqmoo66f337pbn
GET https://markdownregistry.com/api/v1/resolve?ref=ljagiello/ctf-skills/solve-challenge
GET https://markdownregistry.com/api/v1/blob/86e37d7ff93ecffa0193936b2902fd76bf1f3b22e914ecd4c2ed9798ecb27afe