Arguments passed to the connector tool. String values support {placeholders}. In 'summary'/'chunked' mode: {channelName}, {channelUrl}, {shortCount}, {shortsText} (formatted list of Shorts), {message} (the rendered template below); 'chunked' also gives {part}/{partCount} (1-based part number and total — put these in a page title, e.g. 'Shorts {channelName} (part {part}/{partCount})'). In 'perShort' mode: {channelName}, {channelUrl}, {id}, {title}, {url}, {viewCount}, {likeCount}, {commentCount}, {uploadDate}, {duration}, {description}, {hashtags}, {downloadStatus}, {videoDownloadUrl}, {thumbnailUrl}, {message}. Example for Slack: {"channel": "#shorts", "text": "{message}"}.