Set-piece action

Ask the control model: full-control, constrained-control, rail, observation, hybrid, or existing.

Contract

Publish:

• stable set_piece_id and revision
• entry/exit conditions
• control/handoff policy
• active gameplay owners during each state
• camera/presentation mode references
• retry/skip policy where applicable
• stable transition IDs and evidence

Ownership

The set piece composes existing gameplay and presentation systems. It may narrow or transfer control according to project policy, but it does not redefine targeting, timing, traversal, collision or input semantics.