Gameplay loops, progression, economy, motivation, onboarding, difficulty, multiplayer, and live-service critique.
Add the marketplace (inside Claude Code):
/plugin marketplace add Xopoko/plug-n-skillsInstall the plugin:
/plugin install game-design-intelligenceClaude-first, portable paid-media operations across 12 advertising platforms with source-grounded audits, deterministic scoring, lifecycle workflows, versioned JSON reports, and capability-gated account changes.