site-server-audit

site-server-audit is a skill for Claude Code, Codex from GoldenWing-360/claude-security-skills. It costs 74 tokens per session (1,581 once invoked), scanned B, original, MIT.

A read-only checklist for reviewing a public website or server for common security misconfigurations. It checks areas such as DNS, encrypted connections, security headers, exposed files, cookies, and software versions.

In plain words
What is it for?
Pre-launch reviews, client onboarding, infrastructure-change checks, periodic security reviews, and assessing whether a site is ready for production.
Why use it?
It helps authorized owners find visible security weaknesses without exploiting or changing the target.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Pre-launch reviews, client onboarding, infrastructure-change checks, periodic security reviews, and assessing whether a site is ready for production.

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Install with agentmods
npx agentmods add skills/goldenwing-360/claude-security-skills/site-server-audit
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add GoldenWing-360/claude-security-skills --skill site-server-audit
Clone the repo
git clone --depth 1 https://github.com/GoldenWing-360/claude-security-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for site-server-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/goldenwing-360/claude-security-skills/site-server-audit/github.svg)](https://agentmods.dev/skills/goldenwing-360/claude-security-skills/site-server-audit)
Your own site
<a href="https://agentmods.dev/skills/goldenwing-360/claude-security-skills/site-server-audit"><img src="https://agentmods.dev/badge/skills/goldenwing-360/claude-security-skills/site-server-audit/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for site-server-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/goldenwing-360/claude-security-skills/site-server-audit"><img src="https://agentmods.dev/badge/skills/goldenwing-360/claude-security-skills/site-server-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,581 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00074 $0.01581
Opus 5 $0.00037 $0.00790
Sonnet 5 $0.00015 $0.00316
Haiku 4.5 $0.00007 $0.00158

Measured 12d ago against content hash 6f8fa0910b55, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade B, and why

site-server-audit scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Enumerates the file system for secretsmediumData exfiltration

Searching home directories for .env, .ssh, .aws or credential files is reconnaissance for credential theft.

find /path/to/docroot \( -name '.env*' -o -name 'wp-config.php' -o -name 'config.php' \) -perm -o+r 2>/dev/null

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sI https://example.com | grep -i 'strict-transport-security\|^location'
site-server-audit/SKILL.md · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Site / Server Audit

A read-only, non-intrusive checklist for assessing the security posture of a website you have authorization to audit. Every check is passive — it does not exploit, brute-force, or modify the target.

When to invoke

  • Onboarding a new client site, before deploy, after an infrastructure change
  • Periodic re-audit (quarterly is a reasonable cadence for production)
  • After any security advisory affecting the stack (Apache/nginx/PHP/WordPress/Node)
  • When deciding whether to put a site behind Cloudflare or migrate hosting

Required inputs

  • A target hostname you are authorized to audit
  • Optionally: doc-root path if you have shell access (for file-side checks)

If you do not have written authorization for the target, stop. This skill is for owners and authorized auditors.

Audit — DNS

# Authoritative records and chain of trust
dig +short A example.com
dig +short AAAA example.com
dig +short MX example.com
dig +short TXT example.com
dig +short CAA example.com   # missing CAA means any CA can issue certs for you
dig +dnssec +short example.com | grep -i 'RRSIG\|ad'   # DNSSEC presence

# Mail-auth records (only meaningful if the domain sends mail)
dig +short TXT example.com | grep -i 'v=spf1'
dig +short TXT _dmarc.example.com
dig +short TXT default._domainkey.example.com   # adjust selector

Flags:

  • Missing CAA → consider adding one pinning your CA(s)
  • Missing DMARC or p=none on a domain that sends mail → spoofing risk
  • DNSSEC absent → optional, but recommended for high-value domains

Audit — TLS / HTTPS

# Cert chain, expiry, SANs
echo | openssl s_client -servername example.com -connect example.com:443 2>/dev/null \
  | openssl x509 -noout -subject -issuer -dates -ext subjectAltName

# Protocol + cipher (modern only)
nmap --script ssl-enum-ciphers -p 443 example.com   # if nmap is available

# HSTS + redirect chain
curl -sI https://example.com | grep -i 'strict-transport-security\|^location'
curl -sI http://example.com | grep -i '^location\|^HTTP/'   # should 301/308 to https

Read the full file on GitHub · 177 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 177 lines · 74 tokens per session scan B 6f8fa0910b55

Subscribe to this mod's changes

site-server-audit is a skill published in the GitHub repository GoldenWing-360/claude-security-skills (17 stars, last pushed 1mo ago), licensed MIT. It adds 74 tokens to every session and 1,581 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 2 findings (enumerates the file system for secrets, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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