bolivian-peru/system-packages
skills/system-packages/SKILL.md
Manage NixOS packages declaratively. Search, install (via configuration.nix rebuild), remove, rollback, and list generations. Understands the NixOS declarative model.
$ install --global
skillsauthnpx skillsauth add bolivian-peru/os-moda system-packagesInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Apr 20, 2026, 3:00 AM10.3s1 file scanned
SKILL.md
- name:
- system-packages
- description:
- >
- 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.nixto add the package toenvironment.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.systemPackagesin 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"]
})
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