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checking-http-security-headers

95 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By jeremylongshore/tons-of-skills-marketplace (GitHub) · coding · 2,921 stars · scanned at commit 8dc06f0

Audit a target's HTTP security headers — CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, and the Cross-Origin trio (COOP, COEP, CORP). Use when: SOC2 / PCI auditor flagged "missing security headers" or a Mozilla Observatory grade is below B, OR you need HSTS preload eligibility for chrome://net-internals. Threshold: any missing required header on production HTML response, HSTS max-age below 31536000s (preload requirement), CSP with 'unsafe-inline' or 'un…

Works with any agent that supports SKILL.md skills.

What this skill can do

Other copies in this repository

jeremylongshore/tons-of-skills-marketplace has 1 more folder with a skill named checking-http-security-headers. This page shows the lowest-scoring copy.

• plugins/security/penetration-tester/skills/checking-http-security-headers 95/100 · Low risk

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'checking-http-security-headers' ] || [ -L ~/.agents/skills/'checking-http-security-headers' ]; then echo 'A skill folder named checking-http-security-headers already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/jeremylongshore/tons-of-skills-marketplace' "$d" && git -C "$d" checkout --quiet '8dc06f02eb00b7d8d1c0e69dfb3add2fd9500979' -- 'skills/.curated/checking-http-security-headers' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/.curated/checking-http-security-headers' ~/.agents/skills/'checking-http-security-headers' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'checking-http-security-headers' ~/.claude/skills/'checking-http-security-headers' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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