What can change
Fields, rules, identity assumptions, and validation expectations all evolve over time.
Real systems do not stand still. A field becomes required. A validation format tightens. A role restriction appears. A new relationship rule is enforced. Traditional integrations often fail because the original assumptions were embedded too deeply and no live explanation is available when the surface changes.
AIXE does not eliminate change. It changes the failure experience around change.
Field evolution
Callers can rediscover which fields are now required or differently constrained.
Rule evolution
Business rule changes become easier to understand when the contract can describe the new conditions directly.