One specific instance of a prompt — whether invoking a registered Prompt Template or ad-hoc — being resolved, grounded, and executed. Carries the resolved intent, the systems called, and the outcome.
Very high; scales with daily active users and automated callers
Retained per the compliance evidence requirement of the reference company (indefinite for Vantage/Colton's regulatory obligations; shorter, configurable elsewhere)
Only the control-bearing entities were modelled for lifecycle. Defensible as a starting point, but it does leave the entity model uneven, and this is incompleteness rather than a finding.