{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/apv022/mcf-spec/master/schemas/1.0/lesson-frontmatter.schema.json",
  "title": "MCF 1.0 lesson frontmatter",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "id",
    "title"
  ],
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9._-]*$"
    },
    "title": {
      "type": "string",
      "minLength": 1
    },
    "description": {
      "type": "string"
    },
    "authors": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "license": {
      "type": "string"
    }
  }
}