Claude artifact pages: text tools miss content, use a screenshot

When you check a published claude.ai artifact page in the desktop app's built-in browser, get_page_text and find return only the outer shell (title, Chat, Share). The page body renders in a sandboxed frame that those text tools do not read. To confirm that a data update reached the page (for example a dataset doc that points at a new uploaded JSON blob), take a screenshot and zoom on the header or row. The page's own 'updated' time stamp is a good proof.