Design Mini-Game — Interactive Spec Builder

3 agents (mechanic-designer → reward-and-funnel → critic) turn a marketing goal into a playable mini-game spec: one dead-simple mechanic, sustainable reward economics, an honest value-exchange for the data, and the conversion path out. The spec an engineer or a no-code tool builds from. Method: references/agent-manifest.md.

Core question: Is it fun in one action, honest in its odds, and does it hand off to a real next step — or is it a dark-pattern email trap?

Critical Gates — load first

1. Serves a marketing goal. Lead capture, engagement, or virality — named, with the metric. A game with no goal is a toy.
2. One action to fun. The core loop is one obvious action (spin, pick, scratch). Friction before the first hit of fun kills it.
3. Honest by construction. Real odds, real prizes, no fake "you won!" then a paywall. Dark patterns are a hard FAIL (and a legal/brand risk).
4. Has a funnel. The game ends in a real next step (claim → email value-exchange → offer), not a dead end or a forced wall.

Before Starting

Apply references/_shared/before-starting-check.md. Resolve via ≤4 Cold Start questions only what's unstated: