CW-202 foundation
One engine resolves every consequence.
The canonical World Engine now proves deterministic action, delayed effect, actor-response, feedback, uncertainty, event, and explanation contracts. It is an engine foundation—not a playable world.
1. Validate
Reject malformed actions, effects, probabilities, delays, actor responses, and seeds before any state transition.
2. Resolve
Process due effects, the player action, and independent actor responses in stable deterministic order.
3. Record
Return a new snapshot plus append-only events and evidence-bounded explanations for every outcome.
4. Replay
The same snapshot, turns, versions, and seed reproduce the same canonical outcomes without wall-clock time or AI.
Authority boundary
Domain systems and future AI can submit validated intents; neither can mutate canonical state. CW-203 will define the world schemas and causal model that the engine operates on.