exclusiveMinimum

Category: Keyword — presence of a specific JSON Schema keyword triggers this rule

Error Codes

Profile	Code	Severity
anthropic.so.2026-04-30	ANT-K-exclusiveMinimum	Forbid

Description

Flag usage of the 'exclusiveMinimum' keyword, which is not supported by anthropic.so.2026-04-30

Provider Evidence

Profile	Status	Source	Basis
anthropic.so.2026-04-30	inferred	Anthropic JSON Schema limitations	Same numeric-range shape as the documented unsupported minimum keyword.

Rationale

The anthropic.so.2026-04-30 structured-output provider rejects the 'exclusiveMinimum' keyword. Schemas using this keyword may be rejected or silently altered.

Bad Example

{ "type": "object", "exclusiveMinimum": true, "properties": {} }

Good Example

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