ctf-web SKILL.md skillF
ctf-web 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/ctf-web@git:20261027.2388a3bPins git:20261027.2388a3b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- F, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ljagiello/ctf-skills
- Path
ctf-web/SKILL.md- Versions recorded
- 8
- Latest version
- git:20261027.2388a3b, committed Oct 27, 2026
- First version recorded
- Apr 3, 2026
- Size
- 17,215 bytes
- Repository stars
- 3,657
- License
- MIT
Provides web exploitation techniques for CTF challenges. Use when the target is primarily an HTTP application, API, browser client, template engine, identity flow, or smart-contract frontend/backend surface, including XSS, SQLi, SSTI, SSRF, XXE, JWT, auth bypass, file upload, request smuggling, OAuth/OIDC, SAML, prototype pollution, and similar web bugs. Do not use it for native binary memory corruption, reverse engineering of standalone executables, disk or memory forensics, or pure…
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 Web Exploitation Use this skill as a routing and execution guide for web-heavy challenges. Keep the first pass short: map the app, confirm the trust boundary, and only then dive into the detailed technique notes. ## Prerequisites **Python packages (all platforms):** ```bash pip install sqlmap flask-unsign requests httpx ``` **Linux (apt):** ```bash apt install hashcat jq curl ``` **macOS (Homebrew):** ```bash brew install hashcat jq curl ``` **Go tools (all platforms, requires Go):** ```bash go install github.com/ffuf/ffuf/v2@latest ``` **Manual install:** - ysoserial — [GitHub](https://github.com/frohoff/ysoserial), requires Java (Java deserialization payloads) - PayloadsAllTheThings — git clone to ctf-web/payloads/PayloadsAllTheThings (auto via install script or lazy clone) ```bash bash scripts/install_ctf_tools.sh pat # PAT only bash scripts/install_ctf_tools.sh all # all tools including PAT # manual fallback: git clone --depth 1 https://github.com/swisskyrepo/PayloadsAllTheThings.git ctf-web/payloads/PayloadsAllTheThings ``` …
Read the whole file at its exact version.
How to install
mdr add ljagiello/ctf-skills/ctf-web@sha256:c521b3a35bc965f4The 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_6ojeigg6nnsxpjei)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 8 versions of this file, between Apr 3, 2026 and Oct 27, 2026, about one every 30 days. Its first recorded version is graded A and its latest F.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261027.2388a3b latest | 2026-10-27 | 2388a3b | 17,215 B | F | view · diff |
| git:20261019.9eeabd6 | 2026-10-19 | 9eeabd6 | 17,189 B | F | view · diff |
| git:20261015.c957f4f | 2026-10-15 | c957f4f | 14,077 B | A | view · diff |
| git:20260912.61c2efe | 2026-09-12 | 61c2efe | 12,754 B | A | view · diff |
| git:20260417.b80ec3f | 2026-04-17 | b80ec3f | 10,606 B | A | view · diff |
| git:20260414.2fddcde | 2026-04-14 | 2fddcde | 10,198 B | A | view · diff |
| git:20260413.730d82f | 2026-04-13 | 730d82f | 9,612 B | A | view · diff |
| git:20260403.008fb99 | 2026-04-03 | 008fb99 | 9,162 B | A | view |
Audit of the latest version
- FAIL, critical: No link to an exfiltration or paste host (matched: https://webhook.site)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (17215 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
ljagiello/ctf-skills · 3,657 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6ojeigg6nnsxpjei GET https://markdownregistry.com/api/v1/resolve?ref=ljagiello/ctf-skills/ctf-web GET https://markdownregistry.com/api/v1/blob/c521b3a35bc965f416bf8c7b1e82113eebc13f44ce779ead9c80eb55649db5ff
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.
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