atlas-llm-evaluation-engineering-design-eval-suite

Turn a fuzzy 'is the AI good enough?' into a concrete measurement plan: task spec, the eval method from the decision tree (exact / rule-based / model-graded / human), the metric + what it misses, the offline-vs-online split, a power-adequate sample size, and a numeric ship-gate decided before the run. Reach for it at the START of any LLM-feature eval. Used by eval-strategy-lead (primary).