This is a comprehensive framework for designing abstract strategy games like Chess, Go, or Hex. It walks you through brainstorming techniques (like mechanism extraction from physics or chemistry), design principles (maximizing the depth-to-complexity ratio), and concrete evaluation criteria (first player should win 45-55%, rules fit on one page). The toolkit covers board topology, piece systems, victory conditions, and balance considerations like the pie rule. Use it when you're designing a board game from scratch or need to evaluate whether your prototype has genuine strategic depth or just accidental complexity. The testing protocol and anti-patterns section are especially practical for catching common failures like analysis paralysis or dominant strategies.
npx skills add https://github.com/jwynia/agent-skills --skill abstract-strategy