How can buyers test whether an agent uses the right evidence to choose a destination?

A routing agent may reach the expected queue for the wrong reason. It might associate a writing style with a department or rely on a repeated phrase that happens to correlate with labels in the training material.

Counterfactual pairs help expose this behaviour. In healthcare administration, two appointment requests can contain the same message but differ in referral status. If the supplied policy requires a completed referral before specialist scheduling, that single change should alter the permitted next action.

A complementary pair can change an irrelevant feature, such as the greeting, while keeping the operational facts fixed. The route should remain stable. Together, these tests examine sensitivity to relevant evidence and resistance to distracting variation.

A generated evaluation pack could identify the changed field, the governing rule and the expected relationship between outcomes. Buyers should inspect the pairs to confirm that no other field accidentally reveals the answer.

Evaluate both action and explanation. An agent that changes its destination correctly but cites an unchanged fact may still be using an unreliable shortcut. These tests provide targeted evidence about reasoning behaviour without claiming to prove general reliability.