Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/yaklang/hack-skills --skill injection-checking- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads injection-checking automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Injection Testing Router
This is the routing entry point when input reaches a dangerous interpreter or execution environment.
After confirming this is an injection-class issue, use it to decide whether it is mainly browser context, database, template engine, server-side requests, XML parsing, or system commands.
When to Use
- Input reaches HTML, JS, SQL, templates, URL fetchers, XML parsers, or shell
- You have not yet decided whether to start with XSS, SQLi, SSRF, XXE, SSTI, CMDi, or NoSQL
- You need to choose the correct deep-topic skill based on input flow
Skill Map
- XSS Cross Site Scripting
- SQLi SQL Injection
- SSRF Server Side Request Forgery
- XXE XML External Entity
- SSTI Server Side Template Injection
- CMDi Command Injection
- NoSQL Injection
- Deserialization Insecure
- JNDI Injection
- Expression Language Injection
- CRLF Injection
- Extra Injection Types (SSI, LDAP, XPath)
- Request Smuggling
- Prototype Pollution
- Type Juggling
- HTTP Parameter Pollution
- XSLT Injection
- CSV Formula Injection
Recommended Flow
- First identify the final sink of the input
- Then choose the topic skill that best matches that interpreter
- Small payload samples and quick triage are merged into each main skill; no extra payload router is needed
Related Categories
- file-access-vuln
FAQ
What does the injection-checking skill do?
Entry P1 category router for injection testing. Use when routing between XSS, SQLi, SSRF, XXE, SSTI, command injection, and NoSQL injection workflows based on how attacker-controlled input is consumed.
How do I install injection-checking?
Run npx skills add https://github.com/yaklang/hack-skills --skill injection-checking in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/injection-checking/ (personal) or .claude/skills/injection-checking/ (project).
Which AI agents can use injection-checking?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is injection-checking safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains injection-checking?
It is published by yaklang in yaklang/hack-skills. It has 3,732 recorded installs.
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