{"name":"json_schema_validate","title":"JSON Schema Validator","category":"developer","description":"Validate a JSON value against a JSON Schema (bounded draft-07-ish subset: type/enum/required/properties/items/min-max/pattern) and list every violation.","price_usd":0.001,"input_schema":{"type":"object","properties":{"schema":{"type":"object","description":"JSON Schema object describing the expected shape"},"instance":{"type":["object","array","string","number","boolean","null"],"description":"The JSON value to validate against schema (any JSON type)"}},"additionalProperties":false,"required":["schema","instance"]}}