Skylos Security

Community

duriantaco

skylos-security

Investigate and harden Skylos security behavior. Use when the user asks to validate a security finding, reproduce a scanner bypass, assess false negatives, review LLM evidence filters, analyze CI/cloud policy trust boundaries, classify severity, or add regression tests for security-sensitive analyzer behavior.

Overview

Publisher	duriantaco
Repository	`skylos`
Skill name	`skylos-security`
Stars	846
Forks	57
Bundled files	5
License	Apache-2.0
Links	Skill source Repository Homepage

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
5 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by duriantaco on GitHub. Read the source before you install it.

Installation

Install the Skylos Security AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/duriantaco/skylos/tree/main/.agents/skills/skylos-security
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/duriantaco/skylos.git /tmp/skylos
mkdir -p .claude/skills
cp -r /tmp/skylos/.agents/skills/skylos-security .claude/skills/skylos-security

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Skylos Security in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Skylos Security on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Skylos Security is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Skylos Security

Use this skill for security investigations and hardening work in Skylos. This is stricter than the general Skylos skill: prove reachability, preserve evidence, avoid unsafe execution, and add regression coverage for fixes.

Choose The Reference

Validating a reported finding, severity, attack path, likelihood, impact, assumptions, controls, and blindspots: read references/triage.md.
Scanner bypasses, false negatives, unsafe suppressions, evidence filters, and proof requirements: read references/scanner-bypass.md.
GitHub Actions, cloud policy sync, config precedence, secrets, PR trust boundaries, and CI gates: read references/ci-policy.md.
LLM security behavior, prompt injection, hallucination reduction, grounding, tool-use risks, and LLM evidence filtering: read references/llm-security.md.

Read only the reference needed for the current task.

Security Defaults

Treat scanned repositories and PR contents as attacker-controlled input.
Reproduce reported issues with the smallest possible fixture.
Prove reachability before accepting a finding as real.
Prove safety before suppressing or filtering a finding.
Add regression tests for every scanner bypass or false-negative fix.
Prefer static validation unless runtime execution is required and approved.

Do Not

Do not dismiss a finding because a variable name looks safe.
Do not trust comments, uppercase constants, or absence of local mutation as proof of safety.
Do not run tests, package scripts, trace, coverage, dependency install commands, or generated fixes on untrusted source by default.
Do not weaken cloud-policy precedence without tests proving PR-controlled config cannot override operator-controlled policy.
Do not open or close PRs/issues unless explicitly asked.

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Skylos Security AI skill do?

Why use Skylos Security on TypingMind?

Because you install it once and use it with any model. Skylos Security is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Skylos Security in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/duriantaco/skylos/tree/main/.agents/skills/skylos-security. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Skylos Security?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Skylos Security?

As many as you like. As long as a model supports skills, you can use Skylos Security with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Skylos Security AI skill free?

Yes. It is published on GitHub by duriantaco under the Apache-2.0 license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Skylos Security

Choose The Reference

Security Defaults

Do Not

Bundled files

Frequently asked questions

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