Target-profile-driven scaffolding for a multi-scene, multi-option prototype into the active playground defined in ${CLAUDE_PLUGIN_ROOT}/config/prototype-targets.json. Reads the target's real conventions at runtime (folder layout, manifest shape, scene API), checks for collisions/reuse, and creates the orchestrator + scene files + manifest entry. Swappable — point at a newer playground by changing the target profile, not this skill.