no-empty-model

Id

@azure-tools/typespec-azure-resource-manager/no-empty-model

ARM Properties with type:object that don’t reference a model definition are not allowed. ARM doesn’t allow generic type definitions as this leads to bad customer experience.

Define a named model with explicit properties instead of a generic object shape so clients and OpenAPI consumers see a concrete schema.

Impact

• Area: API, SDK

A model that accepts any schema is difficult to use from both the API and generated SDKs.

LintDiff Equivalent

This rule corresponds to the LintDiff rule MissingTypeObject.

❌ Incorrect

model Information {
  address: {};
}

❌ Incorrect

model Empty {}

✅ Correct

model Information {
  address: Address;
}

model Address {
  street: string;
  city: string;
  state: string;
  country: string;
  postalCode: string;
}

✅ Correct

model Information {
  street: string;
  city: string;
  state: string;
  country: string;
  postalCode: string;
}

Suppression

Suppress only when required to match an existing API; otherwise use a defined type.