Agent skill
xss-prevention
Encode output appropriately for the context (HTML, JavaScript, CSS, URL) Use when implementing security best practices. Security category skill.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/xss-prevention-omniaffixdave-sessionguardian
Metadata
Additional technical details for this skill
- category
- Security
- priority
- high
- is built in
- YES
- session guardian id
- builtin_xss_prevention
SKILL.md
XSS Prevention
Encode output appropriately for the context (HTML, JavaScript, CSS, URL). Use framework-provided escaping mechanisms (React's JSX, template engine auto-escaping). Avoid innerHTML, dangerouslySetInnerHTML, and similar APIs unless absolutely necessary and content is sanitized. Implement Content Security Policy (CSP) headers. Validate and sanitize user-generated content, especially rich text or markdown.
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