Is the NixOS skill free?

Yes. The skill itself is free from marceloeatworld/nixos-ai-skill. SkillProof publishes the install command and an independent test verdict at no cost.

What is the NixOS SkillProof Score?

8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 4/5.

How do I install NixOS?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use NixOS with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

NixOS

Auto-updated NixOS/Nix manual, nix.dev tutorials, and Nix Pills wired into a topic-to-file routing table.

by marceloeatworld · marceloeatworld/nixos-ai-skill

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 8.8/10
Tested: Jul 15, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · 9920202

Asked it to write a NixOS module exposing services.myapp.enable; grounded in references/nixos-writing-modules.md it surfaced the ExecStart escaping caveat (utils.escapeSystemdExecArg) that a generic from-memory answer skipped entirely.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 8/10
Docs & honesty 4/5

What NixOS does

Bundles ~40 unmodified reference files pulled daily from NixOS/nix.dev, NixOS/nixpkgs manual, Nix Pills, and the release wiki, plus a SKILL.md that maps a user's topic (flakes, modules, callPackage, systemd services, rollback, containers, LUKS, Terraform, etc.) to the right file. Triggers on essentially any NixOS or Nix-ecosystem question.

How to install NixOS

git clone https://github.com/marceloeatworld/nixos-ai-skill
cd nixos-ai-skill
mkdir -p ~/.claude/skills
cp -r . ~/.claude/skills/nixos

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger NixOS

/nixos Auto-updated NixOS/Nix manual, nix.dev tutorials, and Nix Pills wired into a topic-to-file routing table.

It also activates on plain-language prompts like these:

Write a NixOS module that adds services.myapp.enable and starts a service
How do I set up a systemd service inside a NixOS flake configuration?
Help me roll back a NixOS generation after a broken update

Frequently asked questions

Is the NixOS skill free?: Yes. The skill itself is free from marceloeatworld/nixos-ai-skill. SkillProof publishes the install command and an independent test verdict at no cost.
Does NixOS work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 15, 2026. Verdict: Tested · Works. Asked it to write a NixOS module exposing services.myapp.enable; grounded in references/nixos-writing-modules.md it surfaced the ExecStart escaping caveat (utils.escapeSystemdExecArg) that a generic from-memory answer skipped entirely.
What is the NixOS SkillProof Score?: 8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 4/5.
How do I install NixOS?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use NixOS with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.