Show files in a collection as a thumbnail grid with file names, types, sizes, descriptions, and exact asset links. Obtain collection_id from list_collections. Unavailable or inaccessible files are omitted and reported as skipped_count. total_found counts collection references for pagination, not only currently accessible files. The Razuna asset grid displays the returned thumbnails. Use thumbnail_url whenever provided, including for documents and URL bookmarks; file type does not determine thumbnail availability. The grid includes expandable descriptions and keywords. In ChatGPT, respond in plain text only and refer to the grid. Never add image groups, carousels, web previews, or a second gallery, even when labeled illustrative. If the client cannot display the grid, use only the exact returned thumbnail URLs and Razuna links. Do not search the web or generate illustrative replacement images. A returned URL is not proof that the client loaded the image; report a preview failure only if observed.