{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.driftframe.org/site-reading-governance/v2.0/constellation.schema.json",
  "title": "Comparative Site Reading Constellation",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "constellation_id",
    "name",
    "version",
    "repositories",
    "authority_invariants",
    "metadata"
  ],
  "properties": {
    "constellation_id": {
      "$ref": "common.schema.json#/$defs/identifier"
    },
    "name": {
      "type": "string",
      "minLength": 4,
      "maxLength": 180
    },
    "version": {
      "$ref": "common.schema.json#/$defs/semver"
    },
    "repositories": {
      "type": "array",
      "minItems": 5,
      "uniqueItems": true,
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "role",
          "repository",
          "authority",
          "visibility"
        ],
        "properties": {
          "role": {
            "type": "string",
            "enum": [
              "program_specification",
              "enterprise_implementation",
              "simulated_final_state",
              "comparative_evidence",
              "site_reading_governance"
            ]
          },
          "repository": {
            "type": "string",
            "pattern": "^[A-Za-z0-9_.-]+/[A-Za-z0-9_.-]+$"
          },
          "authority": {
            "type": "string",
            "minLength": 10,
            "maxLength": 300
          },
          "visibility": {
            "type": "string",
            "enum": [
              "private",
              "internal",
              "public"
            ]
          }
        }
      }
    },
    "authority_invariants": {
      "type": "array",
      "minItems": 3,
      "uniqueItems": true,
      "items": {
        "type": "string",
        "minLength": 10,
        "maxLength": 300
      }
    },
    "release_policy": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "specification_pin",
        "simulation_baseline",
        "comparison_cadence"
      ],
      "properties": {
        "specification_pin": {
          "type": "string",
          "enum": [
            "tag_commit_digest"
          ]
        },
        "simulation_baseline": {
          "type": "string",
          "enum": [
            "immutable_release"
          ]
        },
        "comparison_cadence": {
          "type": "string",
          "minLength": 3,
          "maxLength": 120
        }
      }
    },
    "metadata": {
      "$ref": "common.schema.json#/$defs/recordMetadata"
    }
  }
}