Is http-sec-audit safe to install?

SaferSkills independently audited http-sec-audit (Agent Skill) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.

CategoryWeightCategory scoreContribution

Securityprompt, exec, net, exfil, eval

35%

100

35.0 pts

Supply chainhash, typosquat, maintainer, lockfile

20%

100

20.0 pts

Maintenancestaleness, pinning, CI

15%

100

15.0 pts

TransparencySKILL.md, perms, README

15%

100

15.0 pts

Communityinstalls, verify, response

15%

100

15.0 pts

Findings & checks · 0 flagged

Securityscore 100 · 0 findings

✓—All security checks passedNo findings in this category for the latest scan.pass

Supply chainscore 100 · 0 findings

✓—All supply chain checks passedNo findings in this category for the latest scan.pass

Maintenancescore 100 · 0 findings

✓—All maintenance checks passedNo findings in this category for the latest scan.pass

Transparencyscore 100 · 0 findings

✓—All transparency checks passedNo findings in this category for the latest scan.pass

Communityscore 100 · 0 findings

✓—All community checks passedNo findings in this category for the latest scan.pass

The primary manifest — the file an agent reads to learn what this artifact does.

skills/http-sec-audit/SKILL.md · 1 file

skills/http-sec-audit/SKILL.md2.0 KB · Markdown

name: http-sec-audit

description: >-

Audit a website's HTTP security headers and cookie flags — CSP, HSTS,

X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy,

COOP/COEP, version-leaking banners, and Secure/HttpOnly/SameSite cookies. Use

when the user asks to "check my site's security headers", "audit HTTP headers",

"is my CSP/HSTS configured right", or "scan a URL for header misconfigs".

license: MIT

HTTP Security Header Audit

Checks a site's response headers against modern web-security best practices and returns prioritized findings with concrete fixes. The analysis core is pure and offline-testable; live scanning uses only Python's stdlib urllib.

When to use this skill

"Audit the security headers on https://example.com."
"Is my CSP / HSTS / cookie config correct?"
"Why is this site flagged for missing headers?"

What it checks

Content-Security-Policy — presence, unsafe-inline, wildcards.
Strict-Transport-Security — presence and max-age length.
X-Content-Type-Options: nosniff, X-Frame-Options / frame-ancestors.
Referrer-Policy, Permissions-Policy.
Information disclosure — Server / X-Powered-By version banners.
Cookies — Secure, HttpOnly, SameSite (incl. SameSite=None

without Secure).

How to run it

# Live scan
python skills/http-sec-audit/audit.py https://example.com

# JSON output
python skills/http-sec-audit/audit.py https://example.com --json

# Offline: audit a saved raw header block (no network)
python skills/http-sec-audit/audit.py --headers-file response_headers.txt

Exit codes: 0 no high issues · 1 findings present · 2 fetch/usage error.

Recommended workflow for Claude

Run the audit (live, or offline against captured headers).
Group findings by severity and present each with its one-line fix.
Offer ready-to-paste header snippets for the user's stack (nginx, Apache,

Express, etc.) for the missing headers.

Only scan sites the user owns or is authorized to test.

http-sec-audit— agent skill

Is http-sec-audit safe to install?

HTTP Security Header Audit

When to use this skill

What it checks

How to run it

Recommended workflow for Claude

Audit the pieces. Scan the whole. Decide.