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environment-guide

environment-guide is a skill for Codex from badsectorlabs/ludus-skills. It costs 57 tokens per session (330 once invoked), scanned A, original, MIT.

A guide for choosing and deploying pre-built Ludus cyber-range environments, which are isolated labs for security training, attack simulation, and detection work.

In plain words
What is it for?
Use it to compare environments such as GOAD, SCCM, Elastic, or Vulhub, verify prerequisites, deploy one, and plan validation steps afterward.
Why use it?
It connects a learning or testing goal to a suitable lab and checks templates, Ansible dependencies, hardware needs, and network access before deployment.

Skill for Codex

Written for Codex: agents/openai.yaml present.

not rated 10repo 2mo ago A scan 57 tokens original MIT

Good fit Use it to compare environments such as GOAD, SCCM, Elastic, or Vulhub, verify prerequisites, deploy one, and plan validation steps afterward.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/badsectorlabs/ludus-skills/environment-guide
View source ↗ badsectorlabs/ludus-skills docs.ludus.cloud
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.

Any agent
npx skills add badsectorlabs/ludus-skills --skill environment-guide
Clone the repo
git clone --depth 1 https://github.com/badsectorlabs/ludus-skills

Made for: Codex.

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 environment-guide

README.md
[![agentmods](https://agentmods.dev/badge/skills/badsectorlabs/ludus-skills/environment-guide/github.svg)](https://agentmods.dev/skills/badsectorlabs/ludus-skills/environment-guide)
Your own site
<a href="https://agentmods.dev/skills/badsectorlabs/ludus-skills/environment-guide"><img src="https://agentmods.dev/badge/skills/badsectorlabs/ludus-skills/environment-guide/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for environment-guide

Your own site · 80×15
<a href="https://agentmods.dev/skills/badsectorlabs/ludus-skills/environment-guide"><img src="https://agentmods.dev/badge/skills/badsectorlabs/ludus-skills/environment-guide.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 330 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00057 $0.00330
Opus 5.5 $0.00023 $0.00132
Sonnet 5.5 $0.00011 $0.00066
Haiku 4.5 $0.00006 $0.00033

Measured 2mo ago against content hash 4b0ac95784ea, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

environment-guide 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 2mo 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/environment-guide/SKILL.md · 31 lines

What it actually says

Ludus Environment Guide

Use this skill to map user goals to pre-built Ludus environments and provide reliable deployment guidance.

Workflow

  1. Clarify what the user wants to learn, test, or simulate.
  2. Recommend one or more pre-built environments that match that objective.
  3. Check prerequisites before deploy: required templates, required Ansible roles/collections, and minimum resources.
  4. Guide the deployment steps in order and call out any external playbook steps.
  5. Provide post-deploy next actions (validation checks, docs, and common follow-up commands).

Key Considerations

  • Resource requirements vary widely; include sizing guidance in recommendations.
  • Verify required templates are available on the server before starting a deploy.
  • Ensure required Ansible roles and collections are installed before deploy.
  • Call out when setup depends on external Ansible playbooks run from the user machine.
  • Remind users a WireGuard connection is required when running external Ansible against range VMs.

References

  • Use references/environments.md for the full environment catalog, requirements, and deployment notes.
  • Use https://docs.ludus.cloud/docs/category/environment-guides for official environment guide updates.
  • Use https://docs.ludus.cloud/docs/quick-start/build-templates to verify template setup prerequisites.
Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2mo ago First seen · 31 lines · 57 tokens per session scan A 4b0ac95784ea

Subscribe to this mod's changes

environment-guide is a skill published in the GitHub repository badsectorlabs/ludus-skills (10 stars, last pushed 2mo ago), licensed MIT. It adds 57 tokens to every session and 330 once invoked, about $0.0002 per session on Opus 5.5. 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.

Learning and teachingSecurity
Related

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environment-guidebadsectorlabs/ludus-skillsSkill102mo agoMITA57Codex
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