minItems-restricted
Category: Restriction — a keyword value outside the allowed set triggers this rule
Error Codes
| Profile | Code | Severity |
|---|---|---|
| anthropic.so.2026-04-30 | ANT-K-minItems-restricted | Forbid |
Description
Restrict values of the 'minItems' keyword to those accepted by anthropic.so.2026-04-30
Provider Evidence
| Profile | Status | Source | Basis |
|---|---|---|---|
| anthropic.so.2026-04-30 | documented | Anthropic JSON Schema limitations | — |
Rationale
anthropic.so.2026-04-30 only supports specific values for the 'minItems' keyword. Using unsupported values will cause validation errors at the API level.
Bad Example
{ "type": "object", "minItems": "invalid-value", "properties": {} }
Good Example
{ "type": "object", "minItems": 0, "properties": {} }