Source:

• src/ometeotl_core/model/utility.py

Local role: Abstract utility interface required by the model layer.

Big-picture role: Domain-neutral contract defining how actor-relative perceived states are scored under an interpretive framework.

Inheritance:

• abstract base class

Core contract:

• framework_id property
• is_multi_criteria property
• evaluate(perception, actor, context) -> UtilityFrame

Helper behavior:

• deterministic missing-metric resolution policies
• standardized UtilityFrame construction helpers

Concrete game-layer implementations:

• WeightedSumUtility
• LexicographicUtility