Mods
AWS

IAM Role: AWS/CloudSearch/ReadOnly

PermissionGrant
cloudsearch:searchReadOnly
cloudsearch:suggestReadOnly
cloudsearch:DescribeAnalysisSchemesMetadata
cloudsearch:DescribeAvailabilityOptionsMetadata
cloudsearch:DescribeDomainsMetadata
cloudsearch:DescribeExpressionsMetadata
cloudsearch:DescribeIndexFieldsMetadata
cloudsearch:DescribeScalingParametersMetadata
cloudsearch:DescribeServiceAccessPoliciesMetadata
cloudsearch:DescribeSuggestersMetadata
cloudsearch:ListDomainNamesMetadata
cloudsearch:ListTagsMetadata