This generates interactive code tours that open in your browser with a sidebar narrative and highlighted code sections. You ask a question like "how does authentication work?" or paste a GitHub PR URL, and it walks you through the relevant code step by step. It's useful when you're onboarding to a new codebase, reviewing a pull request before merging, or just trying to understand how a specific feature is implemented without grepping through files yourself. The PR review mode is a nice touch since it scopes the tour to the actual diff and includes a flags list in the conclusion.
npx skills add https://github.com/kamranahmedse/diffity --skill diffity-tour