{
  "lexicon": 1,
  "id": "dev.hatk.describeCollections",
  "defs": {
    "main": {
      "type": "query",
      "description": "List indexed collections and their schemas.",
      "output": {
        "encoding": "application/json",
        "schema": {
          "type": "object",
          "properties": {
            "collections": {
              "type": "array",
              "items": {
                "type": "object",
                "required": ["collection"],
                "properties": {
                  "collection": { "type": "string" },
                  "columns": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": ["name", "originalName", "type", "required"],
                      "properties": {
                        "name": { "type": "string" },
                        "originalName": { "type": "string" },
                        "type": { "type": "string" },
                        "required": { "type": "boolean" }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}