{
  "type": "object",
  "properties": {
    "summary": { "type": "string" },
    "criteria": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "properties": {
          "id": { "type": "string" },
          "statement": { "type": "string" },
          "part": { "type": "string" },
          "verified_by": { "type": "string", "description": "one of: gate, reviewer" },
          "covers": {
            "type": "array",
            "items": { "type": "integer" },
            "description": "0-based indexes into the discovery brief's scope[] that this criterion proves. Every scope index must appear in at least one criterion or the scope-coverage gate fails the stage."
          }
        },
        "required": ["id", "statement", "part", "verified_by", "covers"],
        "additionalProperties": false
      }
    },
    "out_of_scope": { "type": "array", "items": { "type": "string" } }
  },
  "required": ["summary", "criteria", "out_of_scope"],
  "additionalProperties": false
}