{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://quarka.org/schema/assistant/definitions/data-source.schema.json",
  "title": "Data source",
  "type": "object",
  "additionalProperties": false,
  "required": ["type", "query", "into"],
  "properties": {
    "type": { "const": "qal" },
    "query": { "$ref": "qal-query.schema.json" },
    "into": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9_]*$",
      "description": "Variable name to store the result into (no $ prefix)."
    },
    "transform": {
      "type": "array",
      "items": { "$ref": "transform-step.schema.json" }
    }
  }
}