System Onboarding

Q: What is a Claude Code skill and how does the System Onboarding skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. System Onboarding is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Security · Sub-category: forensics · Last updated: 2026-07-31

Provider-neutral onboarding protocol for a new, rebuilt, or replacement workstation. It establishes the operating-system prerequisites, agent runtimes, shared rule surfaces, portable skills, verified configuration and post-install evidence without copying credentials, private prompts, or host-specific configuration into a repository.

Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

System Onboarding is published as a SKILL.md file in this catalog. The SKILL.md is on the shorter side at about 477 words.

Source: github.com/ellmos-ai/skills
License: MIT
Original author: ellmos contributors
Indexed lastmod: 2026-07-31
Catalog position: Security · forensics
Indexed related skills: 10

How System Onboarding fits the catalog

System Onboarding sits in the Security category under the forensics sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Use this protocol to establish a new or rebuilt workstation for local-first agent work. It is a sequencing and verification guide, not an installer and not a source of credentials. Resolve product-specific instructions from each provider's current documentation before changing a live system.

What this skill does

System Onboarding is a community-contributed Claude Code skill in the forensics sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/system-onboarding/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The System Onboarding Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 174,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/system-onboarding
curl -L https://claudskills.com/skills/system-onboarding/SKILL.md \
  -o ~/.claude/skills/system-onboarding/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/system-onboarding/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/system-onboarding/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\system-onboarding\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the System Onboarding Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/system-onboarding/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the System Onboarding skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the System Onboarding skill?

Use System Onboarding when your Claude Code task falls under the Security category — specifically in the forensics area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use System Onboarding" or describe the task and let Claude pick). Browse related skills at /category/security/.

What is a Claude Code skill and how does the System Onboarding skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. System Onboarding is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/ellmos-ai/skills/blob/HEAD/skills/infrastructure/system-onboarding/SKILL.md
License: MIT
Author: ellmos contributors
Website: https://github.com/ellmos-ai/skills#readme

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

ellmos contributors. (2026). System Onboarding [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/system-onboarding/

BibTeX

@misc{system-onboarding-2026,
  author    = {ellmos contributors},
  title     = {System Onboarding [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/system-onboarding/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/system-onboarding.svg)](https://claudskills.com/skills/system-onboarding/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-08-02 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/system-onboarding/#security)

More Security skills

Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Security skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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