Code Audit
3stoneBrother/code-audit
Professional code security audit skill covering 55+ vulnerability types.
Detect and exploit cross-site scripting vulnerabilities in web applications
Install Xss Testing
$ npx skills add NeoTheCapt/RedteamAgent --skill xss-testing -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install NeoTheCapt/RedteamAgent xss-testing --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/NeoTheCapt/RedteamAgent.git skills-src && mkdir -p .claude/skills && cp -r skills-src/agent/skills/xss-testing .claude/skills/xss-testing && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "xss-testing" agent skill from https://github.com/NeoTheCapt/RedteamAgent/tree/master/agent/skills/xss-testing into .claude/skills/xss-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xss-testing", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/NeoTheCapt/RedteamAgent/tree/master/agent/skills/xss-testingType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add NeoTheCapt/RedteamAgent --skill xss-testing -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install NeoTheCapt/RedteamAgent xss-testing --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NeoTheCapt/RedteamAgent.git skills-src && mkdir -p .agents/skills && cp -r skills-src/agent/skills/xss-testing .agents/skills/xss-testing && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "xss-testing" agent skill from https://github.com/NeoTheCapt/RedteamAgent/tree/master/agent/skills/xss-testing into .agents/skills/xss-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xss-testing", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add NeoTheCapt/RedteamAgent --skill xss-testing -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install NeoTheCapt/RedteamAgent xss-testing --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NeoTheCapt/RedteamAgent.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/agent/skills/xss-testing .cursor/skills/xss-testing && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "xss-testing" agent skill from https://github.com/NeoTheCapt/RedteamAgent/tree/master/agent/skills/xss-testing into .cursor/skills/xss-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xss-testing", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/NeoTheCapt/RedteamAgent.git --path agent/skills/xss-testing--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add NeoTheCapt/RedteamAgent --skill xss-testing -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install NeoTheCapt/RedteamAgent xss-testing --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NeoTheCapt/RedteamAgent.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/agent/skills/xss-testing .gemini/skills/xss-testing && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "xss-testing" agent skill from https://github.com/NeoTheCapt/RedteamAgent/tree/master/agent/skills/xss-testing into .gemini/skills/xss-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xss-testing", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install NeoTheCapt/RedteamAgent xss-testingInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add NeoTheCapt/RedteamAgent --skill xss-testing -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/NeoTheCapt/RedteamAgent.git skills-src && mkdir -p .github/skills && cp -r skills-src/agent/skills/xss-testing .github/skills/xss-testing && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "xss-testing" agent skill from https://github.com/NeoTheCapt/RedteamAgent/tree/master/agent/skills/xss-testing into .github/skills/xss-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xss-testing", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add NeoTheCapt/RedteamAgent --skill xss-testing -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install NeoTheCapt/RedteamAgent xss-testing --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/NeoTheCapt/RedteamAgent.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/agent/skills/xss-testing .opencode/skills/xss-testing && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "xss-testing" agent skill from https://github.com/NeoTheCapt/RedteamAgent/tree/master/agent/skills/xss-testing into .opencode/skills/xss-testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "xss-testing", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
xss-testing- GitHub stars
- 140
- Token cost
- ~1.4k tokens
- SKILL.md length
- 464 words
- Files
- 1
- Skills in repo
- 25
- Repo updated
- First seen
- Licence
- None found
At a glance
Detect and exploit cross-site scripting vulnerabilities in web applications
- Works in 2 steps: Probe for Reflection → Context Analysis
- Tasks that involve Web application vulnerabilities
- SKILL.md covers When to Activate, Types, Detection and Context-Specific Payloads, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Xss Testing is an agent skill from NeoTheCapt/RedteamAgent. Detect and exploit cross-site scripting vulnerabilities in web applications
Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Security, covering Web application vulnerabilities and Penetration testing. It works with JavaScript. The repository describes itself as: An AI red-team agent for authorized labs and web app pentesting workflows. Turns Claude Code / OpenCode / Codex into a structured recon → test → exploit → report workflow, with…
When your agent uses it
- Tasks that involve Web application vulnerabilities
- Tasks that involve Penetration testing
Example prompts
- “/xss-testing”
Workflow steps
2 steps, taken from the step headings in SKILL.md.
- Probe for Reflection
- Context Analysis
What it can do on your machine
Read from SKILL.md and the folder at commit 2e60476. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are html and javascript).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Xss Testing loads about 1.4k tokens when it runs. Until then it costs about 22 tokens; SKILL.md has 464 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 464 words (~1,432 tokens).
“For each param: submit canary, search entire HTML source, note every location, determine context.”
- name
- xss-testing
- origin
- RedteamOpencode
Files
Just SKILL.md in agent/skills/xss-testing of NeoTheCapt/RedteamAgent.
Open the folder on GitHubat commit 2e60476
Compare with similar skills
Xss Testing next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Xss Testing this skillNeoTheCapt/RedteamAgent | 140 | — | ~1.4k | Automated safety check: Pass | None | |
| Code Audit3stoneBrother/code-audit | 893 | 1 repos | ~2.7k | Automated safety check: Pass | None | |
| Fix Strix Security Findingsusestrix/strix | 67k | — | ~1.5k | Automated safety check: Pass | Apache-2.0 | |
| Security Verification Gatefengshao1227/ccg-workflow | 5.9k | — | ~621 | Automated safety check: Notes | MIT | |
| Myrqenstijnswapped/Myrqen | 137 | — | ~2.1k | Automated safety check: Pass | Custom licence | |
| Burp MCP Vuln Checklangbyyi/CyberStrikeAI-SRC | 133 | — | ~3.1k | Automated safety check: Pass | Apache-2.0 |
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Fix Strix Security Findings
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Triages findings from a Strix pentest by severity, fixes each root cause with a minimal change, and re-runs Strix to confirm the exploit no longer works.
Security Verification Gate
fengshao1227/ccg-workflow
Scans code with a bundled Node script for injection, secrets, XSS and other risky patterns, ranks findings by severity and checks that security decisions are documented.
Myrqen
stijnswapped/Myrqen
Run an authorized, local-first application security assessment on the current project using this agent's own reasoning.
Burp MCP Vuln Check
langbyyi/CyberStrikeAI-SRC
Automate low-impact web vulnerability verification through Burp MCP.
Idor Testing
zebbern/claude-code-guide
This skill should be used when the user asks to "test for insecure direct object references," "find IDOR vulnerabilities," "exploit broken access control," "enumerate user IDs or object references,"…
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Related
Works with
Categories
Questions about Xss Testing
What does Xss Testing do?
Detect and exploit cross-site scripting vulnerabilities in web applications. Xss Testing is an agent skill from NeoTheCapt/RedteamAgent.
When should I use Xss Testing?
Xss Testing fits situations like: tasks that involve Web application vulnerabilities; tasks that involve Penetration testing.
How do I install Xss Testing in Claude Code?
Run `npx skills add NeoTheCapt/RedteamAgent --skill xss-testing -a claude-code`. Or copy the skill folder (agent/skills/xss-testing in NeoTheCapt/RedteamAgent) into .claude/skills/xss-testing in your project. Claude Code loads it when a task matches its description.
How do I install Xss Testing in Codex?
Run `npx skills add NeoTheCapt/RedteamAgent --skill xss-testing -a codex`. Or copy the skill folder (agent/skills/xss-testing in NeoTheCapt/RedteamAgent) into .agents/skills/xss-testing in your project. Codex loads it when a task matches its description.
Can I use Xss Testing in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add NeoTheCapt/RedteamAgent --skill xss-testing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/xss-testing, .gemini/skills/xss-testing, .github/skills/xss-testing and .opencode/skills/xss-testing in your project.
What does Xss Testing need to run?
SKILL.md names no scripts, command-line tools or credentials: Xss Testing is instructions for the agent only.
Does Xss Testing access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Xss Testing safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Xss Testing use?
No licence was found for Xss Testing or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Xss Testing use?
About 1.4k tokens (SKILL.md is roughly 5.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Xss Testing?
Skills that share tags, products or a category with Xss Testing: Code Audit (3stoneBrother/code-audit, 893 stars), Fix Strix Security Findings (usestrix/strix, 67k stars), Security Verification Gate (fengshao1227/ccg-workflow, 5.9k stars) and Myrqen (stijnswapped/Myrqen, 137 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Xss Testing?
NeoTheCapt (a GitHub user) maintains it in NeoTheCapt/RedteamAgent, which has 140 GitHub stars. The repository holds 25 skills in this directory. The repository was last updated on August 2, 2026.
Source: NeoTheCapt/RedteamAgent on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.