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Security Headers Configuration

Checked
secondsky·vlatest·security·MIT

Automatically configure optimal HTTP security headers to mitigate common web vulnerabilities and enhance application protection.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add secondsky/claude-skills --skill security-headers-configuration -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

secondsky

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned secondsky/claude-skills at 8837836131.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
8837836131
Manifest
plugins/security-headers-configuration/skills/security-headers-configuration/SKILL.md
Scanned
2 files, 259 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill configures security headers for web applications to enhance protection against common attacks. It automates the setup of critical HTTP response headers like Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security based on specific project requirements.

When to use it

  • Deploying a new frontend or backend application that requires hardening against XSS or clickjacking.
  • Preparing an existing web service for compliance audits or security best practices.
  • Integrating into a CI/CD pipeline to ensure every build includes necessary security configurations.

Key capabilities

  • Automatically generates and applies standard security headers.
  • Configures Content-Security-Policy (CSP) directives.
  • Sets X-Frame-Options to prevent clickjacking attacks.
  • Enables Strict-Transport-Security (HSTS) for HTTPS enforcement.

Example prompts

  • "Configure security headers for my Next.js application to meet OWASP guidelines."
  • "Set up Content-Security-Policy and X-Frame-Options for a React SPA deployed on Vercel."
  • "Add Strict-Transport-Security headers to ensure all traffic is served over HTTPS only."

Tips & gotchas

Ensure your web server or framework supports the specific header syntax you configure, as some legacy systems may not support newer CSP directives. Always test header implementation in a staging environment before applying changes to production to avoid breaking legitimate third-party integrations.