The JSON schema definition of the entity generated by an instruction. The schema must define an object at its root. If the instruction is expected to generate multiple items, the root object should have a key which defines an array of the expected items. An instruction which generates multiple emails may be expressed as {"type": "object", "properties": {"emails": { "type": "array", "items": { "type": "string"}}}}. Simple values may be expressed as an object with a single key. For example, a summary instruction may generate a single string value. The schema might be {"type": "object", "properties": { "summary": { "type": "string"}}}.

An optional metadata filter that is matched against document metadata during update and creation. The instruction will only be applied to documents with metadata matching the filter. The following filter operators are supported: $eq - Equal to (number, string, boolean), $ne - Not equal to (number, string, boolean), $gt - Greater than (number), $gte - Greater than or equal to (number), $lt - Less than (number), $lte - Less than or equal to (number), $in - In array (string or number), $nin - Not in array (string or number). The operators can be combined with AND and OR. Read Metadata & Filters guide for more details and examples.