object-root

Category: Structural — overall schema structure triggers this rule

Error Codes

Profile	Code
openai.so.2026-04-30	OAI-S-object-root

Description

The root schema must be of type object

Rationale

Structured-output providers require the top-level schema to be an object.

Bad Example

{
  "type": "array",
  "items": { "type": "string" }
}

Good Example

{
  "type": "object",
  "properties": { "name": { "type": "string" } }
}