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Thanks Simon, I've been looking for something like this! Do you plan on adding how to write evals on your guides in the future? Figuring out what to test and how to grade is difficult and I don't see a lot of guidance there.

Something interesting to me (now that many models can do the tasks I need adequately) is cost comparisons. Do you know of anyone who's made that as a tool?

the failure mode I keep hitting with eval suites is the grader itself drifting, especially when a VLM or LLM is scoring outputs. saw a piece today arguing computer-use agent judges are systematically off. does smevals let you audit or pin the grader separately from the model under test?

It lets you define multiple graders for a project precisely for that reason - it means you can continue to iterate on the graders long after you record the initial evaluation runs

Small evals are the right size for this problem. The cases that catch my bugs usually fit in a screen, and the useful part is that they run before I start trusting the harness.