Individual skill

eval-design

Use when the user needs to design evaluation datasets, create test cases, stratify samples, generate adversarial examples, extract eval dimensions from traces/specs, or build a labeled evaluation set. Also use when the user mentions test data design, eval coverage, difficulty stratification, synthetic data generation for eval, or "how to create good evaluation data." Outputs datasets in OpenJudge-compatible format.

skills/eval_pipeline/01-eval-design/SKILL.md

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Nov 10, 2026
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# Eval Design

Design high-quality evaluation datasets that measure what actually matters for your
application. You extract evaluation dimensions from business context, structure them
into stratified test cases, and output datasets ready for OpenJudge `GradingRunner`.

## When to Activate

- User has agent traces / production logs and wants to build an eval set from them
- User has evaluation principles but needs properly stratified test data
- User wants to generate adversarial examples that stress-test their system
- User needs coverage analysis — are they testing all the right things?
- User wants a labeling guide for human annotators
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