Guide · Agent skill
How to use the Web Attack Methods agent skill
Updated · written with AI from the project's own documentation and checked against our catalogue data
The web-attack-methods skill is a single SKILL.md cheat sheet that gives an AI agent a broad reference of web attack techniques, covering injection, authentication and authorization bypasses, server-side issues, and ways around CDNs and web application firewalls. This guide explains what an agent skill is, how to install this one, how to ask for help with natural requests, and what safety limits to respect. It is written for authorized penetration testers, red teams, security students and defenders, and it is not meant for testing systems you do not have written permission to test.
Quick start
- 1Download the ZIP. Download the web-attack-methods ZIP from this page.
- 2Unzip into the skills folder. Unzip it into ~/.claude/skills/ for personal use, or into a project's .claude/skills/ folder for a single project.
- 3Or upload in the Claude apps. In the Claude apps, open Settings, go to Capabilities, then Skills, and upload the ZIP.
- 4Confirm the files. Check that the web-attack-methods folder contains SKILL.md.
- 5Confirm your scope. Before any test, confirm you have written permission and a clear scope for the target.
- 6Ask a natural request. Describe the task, the target you are authorized to test, and the output you want.
- 7Verify what you run. Review each suggested payload or command and run it only against approved assets.
What does the web-attack-methods skill make the agent do?
An agent skill is a folder containing a SKILL.md file with instructions that an AI agent reads when a request matches the skill's description. This skill's file is a reference sheet, mostly written in Chinese with some English terms, that lists techniques by category. Its description says it is for testing web injection, auth bypass, server-side issues, and WAF or CDN bypass.
With the skill installed, the agent can answer questions about these techniques and suggest concrete payloads and commands while helping with a penetration test. The file lists categories including SQL, command, template, XSS, SSRF and NoSQL injection; JWT, OAuth, SAML and IDOR issues; file inclusion and file upload; and several CDN and WAF bypass patterns.
- Injection: SQL, command, template (SSTI), XSS, XXE, SSRF, NoSQL
- Authentication and authorization: JWT, OAuth/OIDC, SAML, IDOR, 401/403 bypass
- Server-side: file inclusion (LFI), file upload
- Web miscellaneous and CDN: path traversal tricks, IP-filter bypass, CDN 502 analysis
Install the web-attack-methods skill in Claude
You can install the skill in two ways. For Claude Code, download the ZIP from this page and unzip it into your personal skills folder, ~/.claude/skills/, or into a project's .claude/skills/ folder if you want the skill limited to one project. For the Claude apps, upload the ZIP under Settings, then Capabilities, then Skills.
After installing, check that the folder contains SKILL.md. The skill's folder name should match its skill name, web-attack-methods. The skill lists no required tools and includes no scripts, so there is nothing else to set up.
- Personal install: ~/.claude/skills/web-attack-methods/
- Project install: .claude/skills/web-attack-methods/ inside your project
- Claude apps: Settings, then Capabilities, then Skills, then upload the ZIP
~/.claude/skills/web-attack-methods/SKILL.mdHow do you trigger the skill with natural requests?
You do not need a special command. The agent decides to use the skill when your request matches its description, so describe the task in plain words that name the kind of weakness or control you are working on. Say what the target is, what you are authorized to test, and what you want back, such as a list of candidate payloads, an explanation of why a bypass works, or a checklist.
Vague requests tend to produce generic answers. Naming the category, the framework or server you see, and the specific behaviour you observed gives the agent something concrete to match against the reference.
- Explain how an IDOR or JWT alg-none issue works and what a tester should check first.
- I am running an authorized test on my own staging app. Suggest injection tests for a search parameter that returns SQL errors.
- List 401 and 403 bypass checks I should run against an admin path on a scoped engagement.
- My target sits behind a CDN that returns 502 on login paths. What distinguishes a URL-pattern filter from a backend failure?
- Summarize how SAML signature wrapping works so I can test our SSO for it.
What kinds of examples does the skill support?
The skill is most useful as a quick lookup during a scoped engagement. Because the source is a dense cheat sheet, you will get the best results by asking the agent to explain each suggestion and to tie it to something you observed in your own test environment rather than running items blindly.
The skill is also useful for study. Security students can ask why an encoding or path trick gets past a filter, and defenders can ask which bypass classes their own application should be hardened against.
- Pentest planning: turn a scope document into a checklist of injection and auth tests.
- Learning: ask how server-side template injection differs from client-side XSS.
- Defence review: list the bypass classes your WAF rules and auth middleware should handle.
- Report writing: describe a confirmed finding and the class of technique it belongs to.
What does the skill need, and what does it do on your machine?
The skill lists no required tools or packages. The source metadata states that it does not run scripts and does not use the network. Its only file is SKILL.md, so the skill itself adds text to the agent's context and does not execute code on your computer.
That does not make the techniques safe to apply. The agent's suggestions are only as safe as your use of them. Any command you copy from a suggestion and run against a live system is your action, and it can reach systems you do not control if you are careless about scope.
- Requires: nothing listed
- Runs scripts: no
- Uses network: no
- Files: SKILL.md only
What safety limits should you follow?
The file is an attacker playbook. It contains exploit steps and does not give mitigation advice, and its own description warns against use on systems you do not own or have explicit written permission to test. Unauthorized testing may be illegal in your jurisdiction, so confirm written scope before you run any suggested step.
Some suggestions can damage data or availability. The source includes automated SQL injection tooling with aggressive risk and level settings and an OS shell upload option. Do not run automated scanning against production systems without a scoped plan, and prefer a staging copy of the application for anything intrusive.
- Test only assets you own or have written permission to test, and keep to the scope document.
- Do not point automated tools at production without a scoped, approved plan.
- Start with the least intrusive check that answers your question.
- Keep logs of what you ran, when, and against which asset.
- Use the skill as a reference for understanding and defending, not as a substitute for judgment.
Tips for getting better answers
Give the agent context. The skill is a reference, so the agent gets more value when you describe the response you observed, such as a status code, response size, or error text, and ask it to interpret that against the listed techniques.
Ask for reasoning, not just payloads. A good follow-up is why a technique works and what would make it fail. This helps you judge whether a suggestion fits your target and helps you write the finding clearly.
- Name the framework or server if you know it, for example Spring Boot, Tomcat or nginx.
- Ask the agent to separate what it is certain of from what needs confirming.
- Ask for the defensive counterpart when you write a report.
- Check the SKILL.md file directly if you want to see the full source text.
What people use it for
- Building a scoped checklist of injection and authentication tests for an authorized engagement.
- Studying how JWT, OAuth or SAML weaknesses arise so you can explain them to a development team.
- Reviewing which bypass classes your web application firewall and auth middleware must handle.
- Working out whether a CDN 502 comes from a URL-pattern filter or from a failed backend.
- Drafting the technical section of a penetration test report from a confirmed finding.
Frequently asked questions
How do I install the web-attack-methods skill?
Download the ZIP from this page and unzip it into ~/.claude/skills/ for personal use, or into a project's .claude/skills/ folder. In the Claude apps, upload the ZIP under Settings, then Capabilities, then Skills.
Does web-attack-methods require anything else to run?
The source lists no required tools and states that the skill runs no scripts and uses no network. The package contains only SKILL.md.
Is the web-attack-methods skill free to use?
The skill is published under the Apache-2.0 licence, as listed on this page. Check the licence text in the repository for the terms that apply to your use.
Is this skill safe for beginners?
Not really. The file is an attacker playbook with exploit steps and no mitigation advice, so beginners should use defensive guidance instead. Only test systems you own or have explicit written permission to test.
What are alternatives to this skill?
This page does not compare it with other tools, so this guide does not name alternatives. If you want defensive guidance or a general reference, look for resources that focus on mitigation and secure coding for the same vulnerability classes.
Why does the agent give a generic answer or ignore the skill?
The agent uses the skill when your request matches its description. Name the weakness category, the target type and what you observed, and ask for output tied to that. Confirm the folder contains SKILL.md in the correct skills location.
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Our verdict
This skill suits authorized penetration testers, red teams, security students and defenders who want a quick reference of web attack classes. It is a poor fit for beginners seeking safe, defensive guidance, and for anyone who cannot confirm written permission for the target. Use it only inside a scoped, authorized engagement.
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