{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://simt.space/cosmos-design/specification.schema.json",
  "title": "Cosmos specification index",
  "description": "The map of the Cosmos specification: pages, sections and the rule IDs in each. Rule prose lives in rules.json and tokens in tokens.json; both are listed in resources.",
  "type": "object",
  "required": ["version", "updated", "status", "implementationStatus", "migration", "resources", "ruleCount", "metrics", "budgets", "pages", "sources", "provenance"],
  "properties": {
    "version": { "type": "string", "pattern": "^\\d+\\.\\d+\\.\\d+$" },
    "updated": { "type": "string", "format": "date" },
    "status": { "const": "Normative specification" },
    "normativeLanguage": { "type": "object" },
    "resources": {
      "type": "object",
      "required": ["rules", "tokens"],
      "additionalProperties": { "type": "string", "format": "uri" }
    },
    "ruleCount": { "type": "integer", "minimum": 1 },
    "pages": {
      "type": "array",
      "minItems": 5,
      "maxItems": 5,
      "items": {
        "type": "object",
        "required": ["slug", "label", "description", "url", "ruleCount", "sections"],
        "properties": {
          "slug": {
            "enum": ["common", "web-page", "web-app", "mobile-app", "watch-app"]
          },
          "sections": {
            "type": "array",
            "minItems": 1,
            "items": {
              "type": "object",
              "required": ["id", "title", "url", "ruleIds"],
              "properties": {
                "id": {
                  "type": "string",
                  "pattern": "^[a-z][a-z0-9-]*$"
                },
                "ruleIds": {
                  "type": "array",
                  "minItems": 1,
                  "items": { "$ref": "https://simt.space/cosmos-design/rules.schema.json#/$defs/ruleId" }
                }
              }
            }
          }
        }
      }
    },
    "metrics": { "type": "object" },
    "migration": {
      "type": "array",
      "minItems": 1,
      "items": { "type": "string", "minLength": 1 }
    },
    "budgets": {
      "type": "object",
      "additionalProperties": { "type": "integer", "minimum": 1 }
    },
    "sources": { "type": "array" },
    "provenance": { "type": "array" }
  }
}