ClaudSkills / Security / web-security

Sast Xss

Quality score: 70/100  ·  Category: Security  ·  Sub-category: web-security
Detect Cross-Site Scripting (XSS) vulnerabilities in a codebase using a three-phase approach: recon (find HTML/JS/DOM sink sites), batched verify (trace user input to sinks in parallel subagents, 3 sink sites each), and merge (consolidate batch results). Requires sast/architecture.md (run sast-analysis first). Outputs findings to sast/xss-results.md. Use when asked to find XSS or cross-site scripting bugs.

What this skill does

Sast Xss is a production-ready Claude Code skill (quality score 70/100) in the web-security sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/sast-xss/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked to find XSS or cross-site scripting bugs.

Who uses this skill

The Sast Xss skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/sast-xss
curl -L https://claudskills.com/skills/sast-xss/SKILL.md \
  -o ~/.claude/skills/sast-xss/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/sast-xss/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/sast-xss/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\sast-xss\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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