{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://aas.example/schemas/v1/host-adapter-fixtures.schema.json",
  "type": "object",
  "required": ["schemaVersion", "status", "fixtures", "canary", "requiredInvariants"],
  "properties": {
    "schemaVersion": { "const": 1 },
    "status": { "const": "frozen" },
    "fixtures": {
      "type": "array",
      "minItems": 2,
      "maxItems": 2,
      "uniqueItems": true,
      "items": {
        "type": "object",
        "required": ["host", "path", "hostVersion", "provenance", "validatedAt"],
        "properties": {
          "host": { "enum": ["codex", "claude"] },
          "path": { "type": "string", "pattern": "^[a-z0-9.-]+$" },
          "hostVersion": { "type": "string", "minLength": 1 },
          "provenance": { "type": "string", "minLength": 1 },
          "validatedAt": { "type": "string", "format": "date" }
        },
        "additionalProperties": false
      }
    },
    "canary": { "type": "string", "pattern": "^AAS_SECRET_CANARY_DO_NOT_EMIT_" },
    "requiredInvariants": {
      "const": ["unknown-fields-preserved", "minimal-patch", "mode-owner-preserved", "atomic-write", "user-only-backup", "secret-redacted", "unsafe-file-rejected"]
    }
  },
  "additionalProperties": false
}