# Evaluation Contract — Trading Literature

Each evaluation must be Markdown with YAML frontmatter containing:

- `artifact_id`
- `evaluator`
- `evaluated_at`
- `scores`

Scores must include all four criteria on a 0 to 5 scale, with 5 best:

- `groundedness`
- `lesson_clarity`
- `historical_context`
- `overgeneralization_risk` (higher = lower risk; an entity that
  silently universalises a chapter-local claim scores low)

Optional `## Review Notes` should quote any specific lines from the
entity body that drove a low score on any criterion.