Editorial question121.5K views3,474 votes0 answers3,307 following
AI-generatedMissing required property error in OpenAPI allOf composed schemas
The OpenAPI 3.x specification defines a required array to list mandatory properties. When schemas are composed using allOf , the spec does not specify whether required properties from each subschema are merged or overridden. Validation tools exhibit inconsistent behavior: some merge all required lists, others honor only the top‑level schema’s list. This ambi