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analyzing-security-headers

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claude-code-plugins-plus

jeremylongshore/claude-code-plugins-plus-skills

Plugin

security-headers-analyzer

security

Repository

jeremylongshore/claude-code-plugins-plus-skills
1.1kstars

plugins/security/security-headers-analyzer/skills/analyzing-security-headers/SKILL.md

Last Verified

January 22, 2026

Install Skill

Select agents to install to:

Scope:
npx add-skill https://github.com/jeremylongshore/claude-code-plugins-plus-skills/blob/main/plugins/security/security-headers-analyzer/skills/analyzing-security-headers/SKILL.md -a claude-code --skill analyzing-security-headers

Installation paths:

Claude
.claude/skills/analyzing-security-headers/
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Instructions

# Analyzing Security Headers

## Overview

This skill provides automated assistance for the described functionality.

## Prerequisites

Before using this skill, ensure:
- Target URL or domain name is accessible
- Network connectivity for HTTP requests
- Permission to scan the target domain
- Optional: Save results to {baseDir}/security-reports/

## Instructions

1. Collect the target URL/domain and environment context (CDN/proxy, redirects).
2. Fetch response headers (HTTP/HTTPS) and capture redirects/cookies.
3. Compare headers to recommended baselines and score gaps.
4. Provide concrete remediation steps and verify fixes.


See `{baseDir}/references/implementation.md` for detailed implementation guide.

## Output

The skill produces:

**Primary Output**: Security headers analysis report

**Report Structure**:
```
# Security Headers Analysis - example.com

## Error Handling

See `{baseDir}/references/errors.md` for comprehensive error handling.

## Examples

See `{baseDir}/references/examples.md` for detailed examples.

## Resources

- OWASP Secure Headers Project: https://owasp.org/www-project-secure-headers/
- MDN Security Headers Guide: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers#security
- Security Headers Scanner: https://securityheaders.com/
- CSP Reference: https://content-security-policy.com/
- HSTS Preload: https://hstspreload.org/

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