# `Nous.Eval.Evaluators.Schema`
[🔗](https://github.com/nyo16/nous/blob/v0.17.1/lib/nous/eval/evaluators/schema.ex#L1)

Evaluator that validates structured output against an Ecto schema.

## Expected Format

The expected value should be an Ecto schema module:

    TestCase.new(
      id: "structured",
      input: "Generate a user with name Alice",
      expected: MyApp.User,
      eval_type: :schema
    )

Or a map with the schema and optional field checks:

    TestCase.new(
      id: "structured",
      input: "Generate a user",
      expected: %{
        schema: MyApp.User,
        required_fields: [:name, :email],
        field_values: %{name: "Alice"}
      },
      eval_type: :schema
    )

## Configuration

  * `:allow_extra_fields` - Allow fields not in schema (default: true)
  * `:validate_changeset` - Run changeset validations (default: true)

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*Consult [api-reference.md](api-reference.md) for complete listing*