securityheaders SKILL.md skillA
securityheaders from taracodlabs/aiden is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add taracodlabs/aiden/securityheaders@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- taracodlabs/aiden
- Path
skills/securityheaders/SKILL.md- Versions recorded
- 3
- Latest version
- v1.0.0, committed May 6, 2026
- First version recorded
- Apr 22, 2026
- Size
- 3,862 bytes
- Repository stars
- 875
- License
- AGPL-3.0
HTTP security header audit (A+ to F) with fix recommendations.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Security Headers — HTTP Header Audit
Check any website for missing or misconfigured HTTP security headers. Returns a grade from A+ to F with a list of which headers are present, which are absent, and why each matters for protection against XSS, clickjacking, MIME sniffing, and data leakage.
**No API key required.** Powered by securityheaders.com.
## When to Use
- Audit a website before a security review or penetration test
- Verify that a newly deployed application has the correct security headers
- Check compliance with security baselines (OWASP, NIST, CIS)
- User asks "check security headers for X", "is example.com missing HSTS?", "grade the headers on my site"
## How to Use
### Check security headers for a URL
```powershell
$target = "https://taracod.com"
$encoded = [Uri]::EscapeDataString($target)
$url = "https://securityheaders.com/?q=$encoded&followRedirects=on&hide=on"
$response = Invoke-WebRequest -Uri $url -UseBasicParsing
# Extract grade from HTML badge
$grade = if ($response.Content -match 'class="[^"]*reportTitle[^"]*"[^>]*>[\s\S]*?label[^"]*"([^"]+)"') {
…Read the whole file at its exact version.
How to install
mdr add taracodlabs/aiden/securityheaders@sha256:5ffaf5e9274f7969The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_bhe576kwf6nlcxni)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Apr 22, 2026 and May 6, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-05-06 | ba6fa84 | 3,862 B | A | view · diff |
| v1.0.0 | 2026-05-03 | 73c32aa | 3,920 B | A | view · diff |
| v1.0.0 | 2026-04-22 | 50e79ae | 3,900 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3862 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
taracodlabs/aiden · 875 stars · license AGPL-3.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bhe576kwf6nlcxni GET https://markdownregistry.com/api/v1/resolve?ref=taracodlabs/aiden/securityheaders GET https://markdownregistry.com/api/v1/blob/5ffaf5e9274f796979b7c5ab5bfbda92a62c813858b9fd4a8c66a2f30519617f
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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