Beyond pass/fail: devs debate how to evaluate agent decisions with real costs
KAIT2_1412 · reddit · 2026-08-21
A developer building an agent that makes real decisions (pay a supplier / verify / escalate) asked Reddit: most agent eval tooling (DeepEval, faithfulness scoring) only checks output quality with pass/fail, which is far too blunt. A wrong "pay" loses money while a wrong "escalate" wastes ten minutes — both count as "fail" but differ wildly in real cost. He asks whether practitioners attach cost weights to failure types, calibrate agent confidence, or mostly still ship if the demo looks right.
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