“It’s Hard to Eval” Is a Product Smell
3.24T1.5 sourcehamel.dev (Hamel Husain)
Source record
Published by hamel.dev (Hamel Husain) (T1.5 source). The original is at https://hamel.dev/blog/posts/eval-smell/.
Pipeline notes
The summary and note below are generated by the signal pipeline — they are Beyond Desk’s reading, not quotations from the source.
SummaryHamel Husain argues that products difficult to evaluate signal a design flaw, not just an eval problem. He illustrates with an AI data agent example, showing how adding checkable artifacts like queries, metric definitions, and comparisons to trusted sources improves verifiability and reduces user rework.
Why it mattersReframes evals as a product design problem, with concrete before/after sketches for building AI outputs users can actually verify.

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