Looking at what's here, this appears to be a cross-evaluation tool, likely for comparing outputs or assessing results across different models, runs, or criteria. The source file doesn't give me implementation details to work with, so I can't tell you exactly how it structures comparisons or what format it expects. If you're running multiple AI agents or model variations and need to systematically compare their outputs, this is probably the kind of utility you'd reach for. Without seeing the actual mechanics, I'd say proceed with caution and check the implementation details before building any critical workflows around it. Could be genuinely useful for A/B testing scenarios if it does what the name suggests.
npx skills add https://github.com/alirezarezvani/claude-skills --skill cross-eval