In implementations, a schema generation utility is configured to allow a user to abstract and generate a schema, such as a JSON schema, from a base schema instance according to schema configuration data, other data inputs, and schema configuration models. In an implementation, a user provides parameters, configuration objects, etc. for a desired final output schema. The schema generation utility may be configured to receive and parse the base schema instance into a plurality of configurable data objects, also referred to as “schema chunks,” that are extracted from the base schema instance. A set of schema chunks may be assembled into a desired output schema based on, at least in part, configuration data and assembly data contained in the schema chunks. In other implementations, input parameters may include error tolerance thresholds processed by the schema generator to discern between errors that lead to schema failure and benign errors.