mkdocs-material/docs/schema/extensions.json

{
  "$schema": "https://json-schema.org/draft-07/schema",
  "title": "Markdown extensions",
  "markdownDescription": "https://squidfunk.github.io/mkdocs-material/setup/extensions/",
  "type": "array",
  "items": {
    "oneOf": [
      {
        "$ref": "extensions/markdown.json"
      },
      {
        "$ref": "extensions/pymdownx.json"
      }
    ]
  },
  "uniqueItems": true,
  "minItems": 1
}