Glossary · Phase 10 · Agent harnesses
Evaluation harness
Code that runs a model or agent across a fixed set of tasks, in clean environments, and scores the results.
Try it now
When a person can retry, pass@k is what matters. An unattended agent needs pass^k, which falls fast.
Learn it properly
Evaluation harnesses · Run agents on tasks in fresh environments and grade what they leave behind. About 40 minutes.
Other terms from the same lesson
- SWE-bench: A benchmark of real GitHub issues in real repositories, graded by the projects' own tests.
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