Borrowing it
Nothing to install: this file belongs to AmineDjeghri/personal-os-setup. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/AmineDjeghri/personal-os-setup/main/.claude/skills/vm-lab/SKILL.mdgit clone --depth 1 https://github.com/AmineDjeghri/personal-os-setupWrote 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.
[](https://agentmods.dev/skills/aminedjeghri/personal-os-setup/vm-lab)<a href="https://agentmods.dev/skills/aminedjeghri/personal-os-setup/vm-lab"><img src="https://agentmods.dev/badge/skills/aminedjeghri/personal-os-setup/vm-lab/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.
<a href="https://agentmods.dev/skills/aminedjeghri/personal-os-setup/vm-lab"><img src="https://agentmods.dev/badge/skills/aminedjeghri/personal-os-setup/vm-lab.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Privilege Escalation · line 18 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
- medium Rogue Agent · line 18 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00084 | $0.01061 |
| Opus 5 | $0.00042 | $0.00531 |
| Sonnet 5 | $0.00017 | $0.00212 |
| Haiku 4.5 | $0.00008 | $0.00106 |
Grade B, and why
vm-lab scanned grade B with 2 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 2d 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
After deps are present, `make vm-deps` also does `sudo systemctl enable --now libvirtd.service`, adds your user to the `libvirt`/`kvm` groups, and starts the default virsh network — **requires sudo**, and **you must log Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
Requires `virt-install`, `cloud-localds` (auto-install path only), `curl`, `openssl`, `sha256sum`, `virsh` on `PATH` — `scripts/vm.sh` fails fast with a clear "run `make vm-deps` first" message if any are missing. How it starts
The opening of the file, as written. The whole thing — 36 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Local VM lab (scripts/vm.sh + makefiles/vm.mk)
A libvirt/QEMU helper for booting throwaway VMs to test OS-setup flows without touching the host. CachyOS-host only (its dependency check shells out to pacman -Qi) — not usable from Ubuntu/macOS dev machines.
⚠️ Every command in this skill mutates the host or a VM's disk state (installs packages, needs sudo, creates/destroys VMs, downloads multi-GB ISOs). Confirm the specific command with the user before running any of them — including make vm-deps, any vm-* target, and scripts/vm.sh invocations — even if the user already asked you to "set up the VM lab" in general terms. See the repo-wide rule in CLAUDE.md § "Safety: always confirm before system-mutating actions".
One-time setup
make vm-deps checks for qemu-full libvirt virt-manager dnsmasq edk2-ovmf cloud-image-utils via pacman -Qi. If anything's missing, it tells you to install it through the app's own Packages tab (Dev_tools category) rather than installing it itself — this is deliberate, keeping package installs funneled through the TUI's package-manager code path rather than duplicated in Make.
⚠️ This package list is a manual mirror of packages.yaml's cachyos.pacman.Dev_tools VM-related entries — nothing checks that they stay in sync. If you add/remove a VM dependency, update both places.
After deps are present, make vm-deps also does sudo systemctl enable --now libvirtd.service, adds your user to the libvirt/kvm groups, and starts the default virsh network — requires sudo, and you must log out and back in for the new group membership to take effect before VM commands will work.
Commands
scripts/vm.sh {cachyos|ubuntu-server-auto|ubuntu-server-manual|ubuntu-desktop|list|clean}, wrapped by make vm-cachyos / make vm-ubuntu-server / make vm-ubuntu-server-manual / make vm-ubuntu / make vm-list / make vm-clean.
State (ISOs, disks, cloud-init seeds) lives under .vm/ at repo root (gitignored).
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.
- 2d ago Changed 05b09314dc27
- 11d ago First seen · 36 lines · 84 tokens per session scan B 202554580710
vm-lab is a skill published in the GitHub repository AmineDjeghri/personal-os-setup (602 stars, last pushed 2d ago), licensed MIT. It adds 84 tokens to every session and 1,061 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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