{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:corpus-task-pack-phase-rule:v1",
  "title": "Corpus Task Pack Phase Rule v1",
  "description": "Package-owned observation and verifier requirements. The host validates profile membership and exact observation effect modes. This rule grants no effects.",
  "x-dia-status": "draft",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schema",
    "rule/ref",
    "observation/profile-refs",
    "verifier/ref",
    "repair/observation-only"
  ],
  "properties": {
    "schema": {
      "const": "corpus-task-pack-phase-rule.v1"
    },
    "rule/ref": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9-]*:[^\\s]+$",
      "maxLength": 512
    },
    "observation/profile-refs": {
      "type": "array",
      "minItems": 1,
      "maxItems": 8,
      "uniqueItems": true,
      "items": {
        "type": "string",
        "pattern": "^[a-z][a-z0-9-]*:[^\\s]+$",
        "maxLength": 512
      }
    },
    "verifier/ref": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9-]*:[^\\s]+$",
      "maxLength": 512
    },
    "repair/observation-only": {
      "const": "refuse",
      "description": "Explicit policy for this bounded rule: no further observation-only candidate once repair is eligible, even after a failed repair. Additional diagnosis needs a separately designed host-gap policy, not a model exception."
    }
  }
}