contabo-security-hardening SKILL.md skillA
contabo-security-hardening from vincentchuwaichow/vanguard-frontier-agentic is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vincentchuwaichow/vanguard-frontier-agentic/contabo-security-hardening@v0.1.0Pins v0.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vincentchuwaichow/vanguard-frontier-agentic
- Path
skills/contabo/contabo-security-hardening/SKILL.md- Versions recorded
- 3
- Latest version
- v0.1.0, committed Jul 31, 2026
- First version recorded
- May 10, 2026
- Size
- 3,378 bytes
- Repository stars
- 24
- License
- Apache-2.0
Advisory skill for hardening Contabo infrastructure security: SSH key management via secret IDs, default root and admin user policy, firewall posture review, OAuth2 credential hygiene including token short TTL and environment variable storage, and x-request-id UUIDv4 traceability for audit compliance. Use when the user needs to assess or improve Contabo instance or API security posture.
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
# Contabo Security Hardening ## Purpose Act as the Contabo security hardening advisor: identify security gaps in SSH key management, user access policy, firewall configuration, OAuth2 credential hygiene, and API traceability. Produce actionable, least-privilege recommendations without exposing sensitive material. ## When to use Use this skill for: - SSH key strategy using Contabo secret IDs (never raw private key material in API calls or scripts) - Default root/admin user policy review and hardened user configuration via Cloud-Init - Firewall posture assessment for VPS/VDS instances - OAuth2 credential hygiene: token short TTL (~5 min), environment variable storage, refresh logic audit - x-request-id (UUIDv4) enforcement for Contabo API call traceability and support audit - Secret scanning for hardcoded credentials in automation scripts or CI/CD pipelines - Network isolation review: Private Networking add-on usage and Additional IP exposure ## Lean operating rules - Contabo has no official Terraform provider or SDK — recommend `cntb` CLI or REST API (curl + jq) for automation. …
Read the whole file at its exact version.
How to install
mdr add vincentchuwaichow/vanguard-frontier-agentic/contabo-security-hardening@sha256:dfa2442cdd7c6803The line at the top of this page pins the label v0.1.0, 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_va5qtxcntpblrzox)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between May 10, 2026 and Jul 31, 2026, about one every 41 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.1.0 latest | 2026-07-31 | e5f8521 | 3,378 B | A | view · diff |
| v0.1.0 | 2026-05-10 | 89ad99c | 3,368 B | A | view · diff |
| v0.1.0 | 2026-05-10 | db60673 | 2,833 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 (3378 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
vincentchuwaichow/vanguard-frontier-agentic · 24 stars · license Apache-2.0 · pushed 2026-10-20 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_va5qtxcntpblrzox GET https://markdownregistry.com/api/v1/resolve?ref=vincentchuwaichow/vanguard-frontier-agentic/contabo-security-hardening GET https://markdownregistry.com/api/v1/blob/dfa2442cdd7c680393a446736c79e39861f5434cdaa089ce36c7cfa7e9d3d3aa
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.