Agent skill
security-headers
Verify and configure HTTP security headers (CSP, HSTS, CORS, X-Frame-Options, etc). Checks current configuration and generates framework-specific fixes.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/security-headers
SKILL.md
Security Headers Skill
Overview
Audit and configure HTTP security headers for web applications.
Required Headers
| Header | Purpose | Severity if Missing |
|---|---|---|
| Content-Security-Policy | Prevent XSS/injection | HIGH |
| Strict-Transport-Security | Force HTTPS | HIGH |
| X-Content-Type-Options | Prevent MIME sniffing | MEDIUM |
| X-Frame-Options | Prevent clickjacking | MEDIUM |
| Referrer-Policy | Control referrer info | LOW |
| Permissions-Policy | Control browser features | LOW |
| X-XSS-Protection | Legacy XSS filter | LOW |
Workflow
- Detect framework (Next.js, Laravel, Express, etc.)
- Check current header configuration
- Compare against security best practices
- Generate framework-specific configuration
- Validate headers are properly set
Detection Points
| Framework | Config Location |
|---|---|
| Next.js | next.config.js headers, middleware.ts |
| Laravel | SecurityHeaders middleware |
| Express | helmet middleware |
| Django | SECURE_* settings |
References
- Headers Reference
- Config Templates
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