nix-check

Quick Review

The skill provides a clear, well-structured approach to validating NixOS configurations through three sequential checks (format, lint, flake). The description adequately covers when to invoke the skill. However, the novelty is low as this primarily orchestrates three bash script calls that a CLI agent could easily perform independently. The task knowledge is moderate - while the sequence is clear, there's limited guidance on interpreting failures beyond 'show error output' and only one specific fix suggestion. The skill would be more valuable if it provided deeper error interpretation, automated remediation, or handled complex interdependencies between the checks that justify wrapping them in a skill.