# Primitive Obsession

> A defect in which domain concepts are held in raw primitives with no type or validation.

Record: `architecture:primitive-obsession`
Kind: anti-pattern
Layer: [Enforcement Core](https://banes-lab.com/records/layer/enforcement-core.md)
Severity: discouraged
Scope: correctness_verification, domain_boundary
Canonical: https://banes-lab.com/ontology#architecture-primitive-obsession

Listed in [Architecture principles](https://banes-lab.com/api/records/architecture.md), after [Data Clumps](https://banes-lab.com/records/architecture/data-clumps.md) and before [Stringly Typed Programming](https://banes-lab.com/records/architecture/stringly-typed-programming.md).

## Repair

- Refactored by: introduce_value_object, narrow_type, add_enum, encapsulate_validation
- Detected by: many_string_ids, repeated_validation, boolean_flags, magic_values
- Violated by: Represent meaningful domain concepts as raw strings, numbers, booleans, or maps without type, validation, or behavior.
- Measured by: domain concepts held in primitive types
- Enforced by: type checks and a lint rule against primitive-typed domain identifiers

## Severity

- [discouraged](https://banes-lab.com/records/vocabulary/severity-discouraged.md)

## Category

- [Anti-patterns](https://banes-lab.com/records/architecture-category/anti-patterns.md)

## Force

- [Correctness verification](https://banes-lab.com/records/force/correctness-verification.md)
- [Domain boundary](https://banes-lab.com/records/force/domain-boundary.md)

## Negated by

- [Value Object](https://banes-lab.com/records/architecture/value-object.md)

## Linked from

- [Anti-patterns](https://banes-lab.com/ontology/principles/architecture-category-anti-patterns.md)
- [Domain Architecture](https://banes-lab.com/ontology/principles/architecture-category-domain-architecture.md)
- [Severity levels](https://banes-lab.com/ontology/schema/the-vocabulary-severity.md)
- [The forces](https://banes-lab.com/ontology/schema/the-forces.md)