frontend-security-coder - Frontend Security Coding and XSS Prevention
Provides secure frontend coding practices specializing in XSS prevention, output sanitization, CSP configuration, and client-side security patterns.
Tags
Updated: 2026-09-24Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Implement safe DOM manipulation
- Sanitize dynamic user content
- Configure Content Security Policy headers
- Validate client side user input
- Prevent clickjacking and overlay attacks
- Validate secure redirects and navigation
- Secure token and session storage
- Implement subresource integrity checks
Inputs
- Frontend code and UI templates
- Security requirements and constraints
- User input data and dynamic content
Outputs
- Secure frontend source code
- Content Security Policy header configurations
- Actionable security remediation guidance
Requirements
- Modern browser supporting security APIs
- DOM sanitization library like DOMPurify