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The studio behind Toolproof, BlockDex and KitGrade

Part of Toolproof, the measurement layer for AI agent tooling

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Built byKynth Studios

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Plugins/Security/kastelldev/kastell

kastell

kastelldev/kastell
PluginLoads cleanly

Server security auditing, hardening, and fleet management. Runtime-derived audit catalog, CIS/PCI-DSS/HIPAA compliance, production hardening workflows, and…

Scores
70
out of 100 · grade B

2026-08-19

Works

40% of the score

100/100

  • Loads cleanly: valid frontmatter, required fields present, no dangling references.

Maintained

25% of the score

100/100

  • no commits in the last 12 weeks

Adopted

20% of the score

24/100

  • 57 stars on the source repo.

Documented

15% of the score

3/100

  • No usage example or code block.
Loads cleanly. Every structural check Claude Code needs to register this passed. Last commit 3 days ago.

Install

/plugin marketplace add kastelldev/kastell

What it says it does

Server security auditing, hardening, and fleet management. Runtime-derived audit catalog, CIS/PCI-DSS/HIPAA compliance, production hardening workflows, and first-party MCP tools. Supports Hetzner, DigitalOcean, Vultr, Linode with Coolify, Dokploy, and bare VPS modes.

Every number above came out of reading the file and its repository. Nothing is a judgement call, nothing is a model’s opinion, and nothing can be paid for. The full method is published. Source last committed 2026-08-16.

The record

Type
Plugin
Category
Security
Repository
kastelldev/kastell
Last commit
3 days ago · 2026-08-16
Repository stars
57
Installs
not in the skills.sh registry
Licence
Apache-2.0
Instruction length
0 words
Bundled files
0
View the source on GitHub

Also in kastelldev/kastell

Other artifacts published from the same repository.
ArtifactScoreWhat the check foundTypeReachLast commit
kastell-opskastelldev/kastell
84
cleanSkill57 stars3 days ago
kastell-scaffoldkastelldev/kastell
83
cleanSkill57 stars3 days ago
kastell-researchkastelldev/kastell
80
cleanSkill57 stars3 days ago
kastell-auditorkastelldev/kastell
80
cleanSubagent57 stars3 days ago
kastell-carefulkastelldev/kastell
76
cleanSkill57 stars3 days ago
kastellkastelldev/kastell
70
cleanMarketplace57 stars3 days ago

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Put this measurement in your README

A badge carrying how many listings this index holds from the repository and how many pass every static structural check. It reads from this index every time somebody loads your page, so it changes when the measurement changes and there is nothing to keep up to date. Free, no account, and the value is not something you or we can set by hand.

SkillWorks badge

[![SkillWorks](https://toolproof.kynth.studio/badge/skillworks/kastelldev/kastell.svg)](https://skillworks.kynth.studio/?q=kastelldev%2Fkastell)

Would rather not hotlink us? Every badge is also served in shields.io’s endpoint schema, so shields renders the image and your readers never talk to our domain:

Published by Toolproof, the masthead over this index and eight others. The method behind the number is at toolproof.kynth.studio/methodology, and the whole thing is readable as JSON with no key at /api.

Also from Kynth Studios

Built for the same person as SkillWorks

Toolproof

Independent measurement of AI agent tooling

toolproof.kynth.studio

BlockDex

Search public shadcn registries, item by item

blockdex.kynth.studio

KitGrade

SaaS starter kits, scored on what can be checked

kitgrade.kynth.studio
SkillWorks

Every Claude Code skill, subagent and plugin, scored on whether it actually loads.

The studio list

One product, taken apart, once a month

Kynth Studios pulls one shipped product open every month — what it does, what it cost to build, what the pipeline behind it looks like, and what the numbers did. One email a month, nothing in between.

Double opt-in — we send one confirmation link and nothing else until you click it.

Browse

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Rankings

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Will not load

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X
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Dev.to
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YouTube

@kyisaiah47

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© 2026 SkillWorks. A Kynth Studios product.

The studio behind Toolproof, BlockDex and KitGrade

Part of Toolproof, the measurement layer for AI agent tooling

Privacy
Built byKynth Studios

SkillWorks