secure-headers-csp-builder

What problem does it solve?

This Skill helps implement robust security headers and a Content Security Policy (CSP) for web applications, preventing common attacks like XSS and clickjacking, with a safe, phased rollout strategy.

Core Features & Use Cases

• Security Headers: Automatically adds essential headers like X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Strict-Transport-Security.
• Content Security Policy (CSP): Configures a CSP to control which resources (scripts, styles, images, etc.) are allowed to load, significantly reducing the attack surface.
• Safe Rollout: Implements CSP first in report-only mode to catch violations without breaking the site, followed by a gradual enforcement rollout.
• Use Case: A developer needs to harden their Express.js application against cross-site scripting (XSS) and other injection attacks. They can use this Skill to generate and apply a comprehensive set of security headers and a well-defined CSP.

Quick Start

Use the secure-headers-csp-builder skill to add security headers and a report-only CSP to your Express application.