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Ludus Development

Organization
SpecterOps
ludus-development

Provides information on how to develop Ludus configuration files

Overview

PublisherSpecterOps
Repositoryskills
Skill nameludus-development
Stars
706
Forks
80
Bundled files
50
LicenseMIT
Links
Skill sourceRepository
  • 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.

  • 50 bundled files

    Scripts, templates, and references the model can read while it works. Files are read-only and never executed.

  • Open source

    Published by SpecterOps on GitHub. Read the source before you install it.

Installation

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

1

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.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
    https://github.com/SpecterOps/skills/tree/main/plugins/ludus/skills/ludus-development
  4. 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.
2

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/SpecterOps/skills.git /tmp/skills
mkdir -p .claude/skills
cp -r /tmp/skills/plugins/ludus/skills/ludus-development .claude/skills/ludus-development
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Ludus Development 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 Ludus Development 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 Ludus Development 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.

Ludus Configuration Skill

When to Use

Use this skill when tasked to work on a project related to Ludus, including Ludus range configurations, Ludus roles, Ludus CLI usage, Ludus API interaction, or Ludus supporting files.

When NOT to Use

Do not use this skill when the task you are given does not mention Ludus.

Terminology

  • Ludus - A system to build easy to use cyber environments ("ranges") for testing and development, built on Proxmox
  • Range - A collection of VMs, networks, and firewall rules deployed by Ludus from a single YAML configuration file
  • Template - A base VM image built from ISO that Ludus clones to create range VMs
  • VLAN - Virtual LAN segments within a range; each VLAN becomes the third octet of the VM's IP (e.g., VLAN 10 = 10.X.10.Y)
  • Testing Mode - A Ludus state that snapshots VMs and blocks internet access for safe tool/technique testing
  • Router VM - A Debian-based VM automatically deployed per range that handles routing, DNS (AdGuard Home), and firewall rules
  • Deploy Tags - Ansible tags that control which parts of the deployment process run (e.g., vm-deploy, network, user-defined-roles)
  • Role - An Ansible role added to Ludus and applied to VMs during deployment for additional configuration

Ludus Overview

Ludus is a system to build easy to use cyber environments, or "ranges" for testing and development.

Built on Proxmox, Ludus enables advanced automation while still allowing easy manual modifications or setup of virtual machines and networks.

Ludus is implemented as a server that runs Packer and Ansible to create templates and deploy complex cyber environments from a single configuration file. Ludus is accessed via the Ludus CLI (client) or the Proxmox web interface. Normal users should not need to access Ludus via SSH.

Users can always make manual changes or set up manual environments via Proxmox instead of/in addition to Ludus managed VMs/networks. Ludus is an automation overlay on top of Proxmox, not a 100% replacement for manual configuration - just most of the common setup tasks!

Key Concepts

  • Range configs are YAML files with a ludus array of VM definitions plus optional network, router, defaults, and notify sections
  • VMs are assigned to VLANs (2-255) and given a unique ip_last_octet within the VLAN
  • IP addresses follow the pattern: 10.<range_number>.<vlan>.<ip_last_octet>
  • The {{ range_id }} template string in configs resolves to the user's ID (e.g., "JD")
  • Windows VMs require a windows key; Linux VMs require linux: true; macOS VMs require macOS: true
  • Ansible roles are added via ludus ansible role add and referenced in the roles array per VM
  • Network firewall rules use iptables on the router VM with LUDUS_USER_RULES and LUDUS_DEFAULTS chains

References

For detailed information on specific areas of Ludus, consult the Reference Index which catalogs all available documentation.

Key references for common tasks:

  • Reference Index - Master index of all documentation with descriptions and when to reference each document
  • Range Configuration - Full annotated range config YAML example with all fields
  • Range Config Schema - JSON schema reference for all config properties, types, constraints, and enum values
  • API Reference - Complete REST API endpoint documentation
  • CLI Reference - All Ludus CLI commands and flags
  • Networking - Network architecture, VLANs, firewall rules, and packet capture
  • Templates - Template management, creation, and performance tuning
  • Roles - Using Ansible roles with Ludus and the community role catalog
  • Deploy Tags - Controlling partial deployments with tags
  • Troubleshooting - Solutions for common issues

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 Ludus Development AI skill do?

Provides information on how to develop Ludus configuration files

Why use Ludus Development on TypingMind?

Because you install it once and use it with any model. Ludus Development 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 Ludus Development in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/SpecterOps/skills/tree/main/plugins/ludus/skills/ludus-development. 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 Ludus Development?

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 Ludus Development?

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

Is the Ludus Development AI skill free?

Yes. It is published on GitHub by SpecterOps under the MIT 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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