Agent skill

System Packages

by bolivian-peru in bolivian-peru/os-moda

Manage NixOS packages declaratively. An agent skill from bolivian-peru/os-moda.

Apache-2.0Auto-check passedDevOps & Cloud

Install System Packages

skills CLI

$ npx skills add bolivian-peru/os-moda --skill system-packages -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install bolivian-peru/os-moda system-packages --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/bolivian-peru/os-moda.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/system-packages .claude/skills/system-packages && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "system-packages" agent skill from https://github.com/bolivian-peru/os-moda/tree/main/skills/system-packages into .claude/skills/system-packages/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "system-packages", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/bolivian-peru/os-moda/tree/main/skills/system-packages

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add bolivian-peru/os-moda --skill system-packages -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install bolivian-peru/os-moda system-packages --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/bolivian-peru/os-moda.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/system-packages .agents/skills/system-packages && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "system-packages" agent skill from https://github.com/bolivian-peru/os-moda/tree/main/skills/system-packages into .agents/skills/system-packages/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "system-packages", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add bolivian-peru/os-moda --skill system-packages -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install bolivian-peru/os-moda system-packages --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/bolivian-peru/os-moda.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/system-packages .cursor/skills/system-packages && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "system-packages" agent skill from https://github.com/bolivian-peru/os-moda/tree/main/skills/system-packages into .cursor/skills/system-packages/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "system-packages", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/bolivian-peru/os-moda.git --path skills/system-packages

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add bolivian-peru/os-moda --skill system-packages -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install bolivian-peru/os-moda system-packages --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/bolivian-peru/os-moda.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/system-packages .gemini/skills/system-packages && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "system-packages" agent skill from https://github.com/bolivian-peru/os-moda/tree/main/skills/system-packages into .gemini/skills/system-packages/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "system-packages", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install bolivian-peru/os-moda system-packages

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add bolivian-peru/os-moda --skill system-packages -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/bolivian-peru/os-moda.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/system-packages .github/skills/system-packages && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "system-packages" agent skill from https://github.com/bolivian-peru/os-moda/tree/main/skills/system-packages into .github/skills/system-packages/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "system-packages", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add bolivian-peru/os-moda --skill system-packages -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install bolivian-peru/os-moda system-packages --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/bolivian-peru/os-moda.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/system-packages .opencode/skills/system-packages && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "system-packages" agent skill from https://github.com/bolivian-peru/os-moda/tree/main/skills/system-packages into .opencode/skills/system-packages/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "system-packages", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: system-packages
GitHub stars: 119
Token cost: ~419 tokens
SKILL.md length: 136 words
Files: 1
Skills in repo: 17
Repo updated: Jun 24, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Manage NixOS packages declaratively. An agent skill from bolivian-peru/os-moda.

Works in 5 steps: Edit /etc/nixos/configuration.nix to add… → Validate with a dry-run rebuild → Show the user what will change → …
DevOps & Cloud work in your project
SKILL.md covers Search Packages, Install Packages, Remove Packages and Rollback, plus 1 more section
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

System Packages is an agent skill from bolivian-peru/os-moda. Manage NixOS packages declaratively. Search, install (via configuration.nix rebuild), remove, rollback, and list generations. Understands the NixOS declarative model.

Its SKILL.md is about 420 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in DevOps & Cloud. The repository describes itself as: An operating system built for AI agents — talk to your NixOS server instead of SSH-ing in. Typed, audited tool access with atomic rollback on every change. Research-grade; run it… The licence is Apache-2.0.

When your agent uses it

DevOps & Cloud work in your project

Example prompts

“/system-packages”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

Edit /etc/nixos/configuration.nix to add the package to environment.systemPackages
Validate with a dry-run rebuild
Show the user what will change
On approval, rebuild with nixos-rebuild switch
Log the installation to memory

What it can do on your machine

Read from SKILL.md and the folder at commit b8e418f. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

System Packages loads about 419 tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 136 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~46
When it runs · the whole SKILL.md, loaded when a task matches: ~419

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from bolivian-peru/os-moda at commit b8e418f, republished under its Apache-2.0 licence (© bolivian-peru). 136 words, ~419 tokens.

Download SKILL.mdSave it as .claude/skills/system-packages/SKILL.md (or your agent's skills folder).

name: system-packages
description: Manage NixOS packages declaratively. Search, install (via configuration.nix rebuild), remove, rollback, and list generations. Understands the NixOS declarative model.
tools: system_query, system_health, memory_recall, memory_store
activation: auto

System Packages Skill

You manage packages through NixOS's declarative model. Every package change edits configuration.nix and triggers a rebuild. This means every change is atomic, reproducible, and rollbackable.

Search Packages

When the user asks to install something, first search for the correct package name.

Install Packages

Edit /etc/nixos/configuration.nix to add the package to environment.systemPackages
Validate with a dry-run rebuild
Show the user what will change
On approval, rebuild with nixos-rebuild switch
Log the installation to memory

Always use declarative NixOS config. Never suggest nix-env -i — it breaks the declarative model.

Remove Packages

Remove from environment.systemPackages in configuration.nix
Rebuild
Optionally garbage collect old generations

Rollback

NixOS keeps every generation. To rollback:

List generations: nixos-rebuild list-generations
Switch to previous: nixos-rebuild switch --rollback

Remember

After every package operation, store what happened:

memory_store({
  summary: "Installed postgresql-16",
  detail: "Added services.postgresql.enable = true and services.postgresql.package = pkgs.postgresql_16 to configuration.nix. Rebuild generation 45.",
  category: "system.package",
  tags: ["postgresql", "install", "generation-45"]
})

Files

Just SKILL.md in skills/system-packages of bolivian-peru/os-moda.

Open the folder on GitHubat commit b8e418f

Compare with similar skills

System Packages next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

System Packages compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
System Packages this skillbolivian-peru/os-moda	119	—	~419	Automated safety check: Pass	Apache-2.0	3 mo ago
Monitor CInrwl/nx	29k	6 repos	~4.7k	Automated safety check: Pass	MIT	yesterday
Terraform and OpenTofu Guideagentscope-ai/QwenPaw	36k	6 repos	~4.2k	Automated safety check: Pass	Apache-2.0	yesterday
Vercel Optimize Auditvercel-labs/agent-skills	32k	8 repos	~4.3k	Automated safety check: Pass	None	1 mo ago
Analyze GitHub Action Logswithastro/astro	63k	1 repos	~1.3k	Automated safety check: Pass	Custom licence	yesterday
Openclaw Live Updateropenclaw/openclaw	392k	—	~3.7k	Automated safety check: Pass	MIT	today

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Questions about System Packages

What does System Packages do?

Manage NixOS packages declaratively. An agent skill from bolivian-peru/os-moda. System Packages is an agent skill from bolivian-peru/os-moda. Manage NixOS packages declaratively.

When should I use System Packages?

System Packages fits situations like: devOps & Cloud work in your project.

How do I install System Packages in Claude Code?

Run `npx skills add bolivian-peru/os-moda --skill system-packages -a claude-code`. Or copy the skill folder (skills/system-packages in bolivian-peru/os-moda) into .claude/skills/system-packages in your project. Claude Code loads it when a task matches its description.

How do I install System Packages in Codex?

Run `npx skills add bolivian-peru/os-moda --skill system-packages -a codex`. Or copy the skill folder (skills/system-packages in bolivian-peru/os-moda) into .agents/skills/system-packages in your project. Codex loads it when a task matches its description.

Can I use System Packages in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add bolivian-peru/os-moda --skill system-packages -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/system-packages, .gemini/skills/system-packages, .github/skills/system-packages and .opencode/skills/system-packages in your project.

What does System Packages need to run?

SKILL.md names no scripts, command-line tools or credentials: System Packages is instructions for the agent only.

Does System Packages access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is System Packages safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does System Packages use?

System Packages is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does System Packages use?

About 419 tokens (SKILL.md is roughly 1.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to System Packages?

Skills that share tags, products or a category with System Packages: Monitor CI (nrwl/nx, 29k stars), Terraform and OpenTofu Guide (agentscope-ai/QwenPaw, 36k stars), Vercel Optimize Audit (vercel-labs/agent-skills, 32k stars) and Analyze GitHub Action Logs (withastro/astro, 63k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains System Packages?

bolivian-peru (a GitHub user) maintains it in bolivian-peru/os-moda, which has 119 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on June 24, 2026.

Source: bolivian-peru/os-moda on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

System Packages

Install System Packages

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

System Packages Skill

Search Packages

Install Packages

Remove Packages

Rollback

Remember

Files

Compare with similar skills

Similar skills

Monitor CI

Terraform and OpenTofu Guide

Vercel Optimize Audit

Analyze GitHub Action Logs

Openclaw Live Updater

Docs Learn PR Preview

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Generation Timeline

Morning Briefing

Questions about System Packages

Install System Packages

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

System Packages Skill

Search Packages

Install Packages

Remove Packages

Rollback

Remember

Files

Compare with similar skills

Similar skills

More from bolivian-peru/os-moda

Related

Questions about System Packages