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Notes on agent evaluation, reproducible pipelines, and the plumbing that makes benchmarks trustworthy.

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Introducing Benchwright

Evals are the unit tests of AI. Build and run them on Benchwright. Ship AI on scores, not vibes.

Benchwright Team·Aug 05, 2026·4 min read

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The Fitness You Can't Write Down

Every eval is a proxy for a target you can't fully specify. Optimize the proxy hard enough and it peels away from the target. That's Goodhart's law. You don't escape it with a better number. You triangulate it with several, anchored to something real.

An operator is an autonomous agent that writes code and runs it, against your paid keys, on a shared cluster, into a public commons. Three boundaries keep it from leaking, stampeding, or dying silently.

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