{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "whitehat-engagement/v1",
  "type": "object",
  "additionalProperties": true,
  "required": [
    "engagement_id", "authorization_id", "authorizer", "approved_at", "expires_at",
    "target", "target_owner", "environment", "source", "routes", "fixture_ids",
    "credential_lane", "credential_role", "credential_max_ttl_seconds", "techniques",
    "prohibited_techniques", "rate_limit_per_minute", "max_concurrency", "window_start",
    "window_end", "operator_contact", "abort_contact", "posture_claim", "attacker_model",
    "finding_destination", "target_owner_acknowledged_at"
  ],
  "properties": {
    "engagement_id": {"type": "string", "minLength": 1},
    "authorization_id": {"type": "string", "minLength": 1},
    "approved_at": {"type": "string", "format": "date-time"},
    "expires_at": {"type": "string", "format": "date-time"},
    "window_start": {"type": "string", "format": "date-time"},
    "window_end": {"type": "string", "format": "date-time"},
    "target_owner_acknowledged_at": {"type": "string", "format": "date-time"},
    "environment": {"enum": ["fixture", "build", "staging", "production"]},
    "routes": {"type": "array", "minItems": 1, "items": {"type": "string"}},
    "fixture_ids": {"type": "array", "minItems": 1, "items": {"type": "string"}},
    "techniques": {"type": "array", "minItems": 1, "items": {"type": "string"}},
    "max_concurrency": {"const": 1},
    "rate_limit_per_minute": {"type": "integer", "minimum": 1, "maximum": 60},
    "finding_destination": {"const": "risk-nexus"}
  }
}