{"version":"2.1.323","anchor":"senduserfile-prompt-switches-on-tengu-smooth-pelican","canonical_anchor":"senduserfile-prompt-switches-on-tengu-smooth-pelican","heading":"File-sending tool can use alternative instructions and no longer asks for video thumbnails","tier":"soon","area":"File Sending","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.323\/e\/senduserfile-prompt-switches-on-tengu-smooth-pelican","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.323","markdown":"### File-sending tool can use alternative instructions and no longer asks for video thumbnails\n\nThe instructions for the tool that sends files to you can now switch to a second version, and video thumbnails are no longer requested\n\n**What**\n\n`SendUserFile` is the tool Claude uses to send a file to you. The instructions Claude reads about this tool are now chosen each time instead of being fixed. Claude Code uses a second version of the instructions only when two internal checks pass and a remotely controlled switch is on. That switch is off unless it is turned on remotely. In every other case the original instructions are used.\n\nThe tool also no longer asks for thumbnails, small preview images, when the file is a video.\n\n**Why**\n\nThis prepares a different set of instructions for the file-sending tool that can be tried out without a new release. Until that happens, Claude reads the same instructions as before.\n\n- Flag `tengu_smooth_pelican`: Off in both readings (read for one account on one subscription tier against v2.1.323; this account: off, anonymous baseline: off, compiled default: off) These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.\n- Flag `tengu_sorted_thimble`: Off in both readings (read for one account on one subscription tier against v2.1.323; this account: off, anonymous baseline: off, compiled default: off) These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.\n- Flag `tengu_send_user_file`: Not enough to say (read for one account on one subscription tier against v2.1.323; this account: no value returned, anonymous baseline: no value returned, compiled default: on) These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.\n- Area: File Sending\n- Tier: Nothing to try yet\n- Useful: 2\/5\n- Signal: 3\/5\n- Scope: individual\n- Heads-up: no\n- Present in the build but not switched on"}