Mods
AWS

IAM Role: AWS/Step Functions/ReadOnly

PermissionGrant
states:DescribeExecutionReadOnly
states:GetExecutionHistoryReadOnly
states:DescribeActivityMetadata
states:DescribeStateMachineMetadata
states:DescribeStateMachineForExecutionMetadata
states:ListActivitiesMetadata
states:ListExecutionsMetadata
states:ListStateMachinesMetadata