judge-ctf

judge-ctf is a skill for Claude Code, Codex from wgpsec/AboutSecurity. It costs 95 tokens per session (743 once invoked), scanned A, original, no licence file.

A checklist for deciding whether a CTF challenge is complete and its flag has been found. CTFs are security puzzles where participants exploit weaknesses to retrieve hidden text called a flag.

In plain words
What is it for?
Use it to verify flags, assess discovered vulnerabilities and exploits, infer likely flag locations, and choose next steps for common challenge types.
Why use it?
It helps distinguish a real solution from an unsuccessful attack and identifies what to check next.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to verify flags, assess discovered vulnerabilities and exploits, infer likely flag locations, and choose next steps for common challenge types.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wgpsec/aboutsecurity/judge-ctf
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 wgpsec/AboutSecurity --skill judge-ctf
Clone the repo
git clone --depth 1 https://github.com/wgpsec/AboutSecurity

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 judge-ctf

README.md
[![agentmods](https://agentmods.dev/badge/skills/wgpsec/aboutsecurity/judge-ctf/github.svg)](https://agentmods.dev/skills/wgpsec/aboutsecurity/judge-ctf)
Your own site
<a href="https://agentmods.dev/skills/wgpsec/aboutsecurity/judge-ctf"><img src="https://agentmods.dev/badge/skills/wgpsec/aboutsecurity/judge-ctf/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 judge-ctf

Your own site · 80×15
<a href="https://agentmods.dev/skills/wgpsec/aboutsecurity/judge-ctf"><img src="https://agentmods.dev/badge/skills/wgpsec/aboutsecurity/judge-ctf.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 743 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin unknown 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 5.1 $0.00095 $0.00743
Opus 5 $0.00048 $0.00371
Sonnet 5 $0.00019 $0.00149
Haiku 4.5 $0.00010 $0.00074

Measured 5d ago against content hash f31a0dd11a51, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

judge-ctf scanned grade A with 1 finding 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 5d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

3. Check response headers: curl -v for HTTP headers
skills/general/judge-ctf/SKILL.md · 82 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 5d ago First seen · 82 lines · 95 tokens per session scan A f31a0dd11a51

Subscribe to this mod's changes

judge-ctf is a skill published in the GitHub repository wgpsec/AboutSecurity (1,725 stars, last pushed 9d ago), with no licence file. It adds 95 tokens to every session and 743 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

Other skills, from other repositories

ctf-misc

Provides miscellaneous CTF challenge techniques for problems that do not cleanly fit the main categories. Use for encoding puzzles, pyjails, bash jails, RF/SDR, DNS oddities, unicode tricks, esoteric languages, QR or audio puzzles, constraint solving, game theory, unusual sandbox escapes, and hybrid logic puzzles.…

ljagiello/ctf-skills · 122 tokens

thm-trainer

The core decision loop for driving any TryHackMe room. Use at the START of every room, whenever the user asks "what next", and whenever progress stalls. Teaches classify -> observe -> hypothesize -> test -> decide, so the approach is chosen from what the room is actually teaching rather than defaulting to…

pashki975/thm-claude-kit · 89 tokens

windows-ad-methodology

Standard operating procedure for solving Windows and Active Directory TryHackMe boxes. Use when the target is Windows/domain-joined (SMB/LDAP/Kerberos/WinRM ports open, or the room mentions AD/domain), when asked "what next" on a Windows room, or when a Linux-oriented approach isn't fitting. Guides the recon → AD enum…

pashki975/thm-claude-kit · 89 tokens

CTF•恶意软件分析

A skill for analysing malware-related capture-the-flag challenges, or CTF puzzles that involve examining suspicious code, files, or network traffic.

asdfgh1445/ctf-super-hub · 76 tokens

cheatsheet-generator

Generate LaTeX exam cheatsheets from course materials (PDF/PPTX/MD/images). Use when user says "generate cheatsheet", "make a cheat sheet", "create exam reference sheet", "condense notes", or has course materials to turn into a compact LaTeX review sheet for exams.

Evan715823/cheatsheet-generator-skill · 67 tokens

fieldops-ctf-misc

Cross-category CTF challenges that do not fit a single specialist. Use when a challenge is genuinely hybrid — encodings, jails, RF/SDR, game logic, Z3 or constraint solving, custom VMs, or Linux privilege escalation — and a narrower category skill is not the right starting point.

download4you/n2-fieldops · 70 tokens