tags, customers, and conversations take page and perPage. page starts at 1. tags returns the first 20 rows when you leave both out. Other lists document their own default, so pass both whenever you care which page you get.
Ask for the pagination object and stop when hasNextPage is false.
perPage small. MCP throws away a tool result larger than 512 KB, and a huge page is slower for every client. Add a search or filter argument when the reference shows one, instead of paging through the whole workspace.