{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "required": [
    "source-artifact-refs",
    "id",
    "problem-domain",
    "target-user",
    "triggering-event",
    "current-alternative",
    "why-now",
    "founder-fit"
  ],
  "properties": {
    "source-artifact-refs": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "required": ["artifact-id", "artifact-sha256"],
        "properties": {
          "artifact-id": {"type": "string", "minLength": 1},
          "artifact-sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"}
        }
      }
    },
    "id": {"type": "string", "minLength": 1},
    "problem-domain": {"type": "string", "minLength": 1},
    "target-user": {"type": "string", "minLength": 1},
    "triggering-event": {"type": "string", "minLength": 1},
    "current-alternative": {"type": "string", "minLength": 1},
    "why-now": {"type": "string", "minLength": 1},
    "founder-fit": {"type": "string", "minLength": 1}
  }
}