solve-challenge SKILL.md skillA
solve-challenge from ljagiello/ctf-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ljagiello/ctf-skills/solve-challenge@git:20261027.2388a3bPins git:20261027.2388a3b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ljagiello/ctf-skills
- Path
solve-challenge/SKILL.md- Versions recorded
- 8
- Latest version
- git:20261027.2388a3b, committed Oct 27, 2026
- First version recorded
- Mar 27, 2026
- Size
- 11,007 bytes
- Repository stars
- 3,657
- License
- MIT
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…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# CTF Challenge Solver You're a skilled CTF player. Your goal is to solve the challenge and find the flag. ## Environment Setup Two setup strategies depending on your workflow: ### Pre-install (recommended before competitions) Use the central installer entrypoint: ```bash bash scripts/install_ctf_tools.sh all ``` Run a narrower mode when you only want one tool group: ```bash bash scripts/install_ctf_tools.sh python bash scripts/install_ctf_tools.sh apt bash scripts/install_ctf_tools.sh brew bash scripts/install_ctf_tools.sh gems bash scripts/install_ctf_tools.sh go bash scripts/install_ctf_tools.sh manual ``` The full package lists now live in [scripts/install_ctf_tools.sh](../scripts/install_ctf_tools.sh). ### On-demand (during challenges) Each category skill's `SKILL.md` has a **Prerequisites** section listing only the tools needed for that category. Install as you go. ## Workflow Before selecting or escalating a model, read [difficulty-routing.md](difficulty-routing.md). Use its evidence-based scoring, stop-loss rules, and tier gates throughout the workflow. ### Step 0: CTFd Platform Detection …
Read the whole file at its exact version.
How to install
mdr add ljagiello/ctf-skills/solve-challenge@sha256:a18d5aa7cee44bfdThe line at the top of this page pins the label git:20261027.2388a3b, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_2fmqmoo66f337pbn)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 8 versions of this file, between Mar 27, 2026 and Oct 27, 2026, about one every 30 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261027.2388a3b latest | 2026-10-27 | 2388a3b | 11,007 B | A | view · diff |
| git:20261019.9eeabd6 | 2026-10-19 | 9eeabd6 | 10,981 B | A | view · diff |
| git:20261015.c957f4f | 2026-10-15 | c957f4f | 10,798 B | A | view · diff |
| git:20260912.61c2efe | 2026-09-12 | 61c2efe | 9,183 B | A | view · diff |
| git:20260413.730d82f | 2026-04-13 | 730d82f | 8,897 B | A | view · diff |
| git:20260404.e169175 | 2026-04-04 | e169175 | 8,910 B | A | view · diff |
| git:20260331.2e9fe4a | 2026-03-31 | 2e9fe4a | 8,144 B | A | view · diff |
| git:20260327.40100a9 | 2026-03-27 | 40100a9 | 7,988 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11007 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
ljagiello/ctf-skills · 3,657 stars · license MIT · pushed 2026-11-06 · 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/a18d5aa7cee44bfdfb9d9b6cbf9e464595cca546162101405471f625fec077aa
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from ljagiello/ctf-skills
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