hcloud-security

hcloud-security is a skill for Claude Code from danjdewhurst/hcloud-skills. It costs 38 tokens per session (1,871 once invoked), scanned A, original, MIT.

A set of instructions for managing security-related settings in Hetzner Cloud, a cloud hosting service. It covers SSH keys, TLS/SSL certificates, resource protection, reverse DNS, and labels.

In plain words
What is it for?
Use it when creating, listing, updating, describing, or deleting SSH keys and when managing certificates, protection settings, reverse DNS, or labels on Hetzner Cloud resources.
Why use it?
It gives you a documented way to handle these settings without searching through separate command references.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the hcloud plugin — 7 skills, 3 commands, 1 hook shipped together

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.

agentmods
npx agentmods add skills/danjdewhurst/hcloud-skills/hcloud-security
Any agent
npx skills add danjdewhurst/hcloud-skills --skill hcloud-security
Clone the repo
git clone --depth 1 https://github.com/danjdewhurst/hcloud-skills

Made for: Claude Code.

Or install hcloud, the plugin that ships this one along with the rest of its 7 skills, 3 commands, 1 hook.

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 hcloud-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/danjdewhurst/hcloud-skills/hcloud-security.svg)](https://agentmods.dev/skills/danjdewhurst/hcloud-skills/hcloud-security)
Your own site
<a href="https://agentmods.dev/skills/danjdewhurst/hcloud-skills/hcloud-security"><img src="https://agentmods.dev/badge/skills/danjdewhurst/hcloud-skills/hcloud-security.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,871 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00038 $0.01871
Opus 5 $0.00019 $0.00936
Sonnet 5 $0.00008 $0.00374
Haiku 4.5 $0.00004 $0.00187

Measured 5d ago against content hash 6b80d624d5c0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

hcloud-security scanned grade A with 0 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 5d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/hcloud-security/SKILL.md · 285 lines

How it starts

The opening of the file, as written. The whole thing — 285 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hetzner Cloud Security

SSH Keys

Create an SSH Key

hcloud ssh-key create [options] --name <name> (--public-key <key> | --public-key-from-file <file>)
Flag Description
--name Key name (required)
--public-key Public key string
--public-key-from-file Path to file containing the public key
--label User-defined labels as key=value (repeatable)
-o, --output Output options: json|yaml

List SSH Keys

hcloud ssh-key list [options]

Columns: id, name, fingerprint, public_key, age, created, labels

Flag Description
-l, --selector Filter by label selector
-s, --sort Sort results
-o, --output Output options: noheader|columns=...|json|yaml

Describe an SSH Key

hcloud ssh-key describe [options] <ssh-key>
Flag Description
-o, --output Output options: json|yaml|format

Delete SSH Keys

hcloud ssh-key delete <ssh-key>...

Accepts one or more SSH keys by name or ID.

Update an SSH Key

hcloud ssh-key update [options] <ssh-key>
Flag Description
--name New SSH key name

Labels

hcloud ssh-key add-label [--overwrite] <ssh-key> <label>...
hcloud ssh-key remove-label <ssh-key> (--all | <label>...)

Certificates

Create a Certificate (Uploaded)

hcloud certificate create --name <name> --type uploaded --cert-file <file> --key-file <file>
Flag Description
--name Certificate name (required)
-t, --type Certificate type: uploaded or managed (default: uploaded)
--cert-file File containing the PEM encoded certificate (required for uploaded)
--key-file File containing the PEM encoded private key (required for uploaded)
--label User-defined labels as key=value (repeatable)
-o, --output Output options: json|yaml

Read the full file on GitHub · 285 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. 5d ago First seen · 285 lines · 38 tokens per session scan A 6b80d624d5c0

Subscribe to this mod's changes

hcloud-security is a skill published in the GitHub repository danjdewhurst/hcloud-skills (3 stars, last pushed 6mo ago), licensed MIT. It adds 38 tokens to every session and 1,871 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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