I wired Uploads and UploadLimits in cmdServe but not UploadChatMaxChars: chat over a long recording would have silently used the 18,000-char caption default. A helper that main and the e2e test both call makes that a tested fact. Red: wireUploads is undefined. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>