{
  "$schema": "http://json-schema.org/draft-07/schema#", "type": "object",
  "required": ["basis-artifact-id", "basis-artifact-sha256", "problem", "outcomes", "non-goals", "user-stories", "success-metrics", "constraints"],
  "properties": {
    "basis-artifact-id": {"type": "string", "minLength": 1}, "basis-artifact-sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"},
    "problem": {"type": "string", "minLength": 1}, "outcomes": {"type": "array", "minItems": 1}, "non-goals": {"type": "array"},
    "user-stories": {"type": "array", "minItems": 1}, "success-metrics": {"type": "array", "minItems": 1}, "constraints": {"type": "array"}
  }
}