UChicago Law Professor William Baude asked Claude to update lecture set page numbers; after mistakenly deleting a year's worth of class notes, the files were recovered via Dropbox.

UChicago Law Professor William Baude posted on November 6, asking Claude to update page numbers in an old constitutional law lecture set. The AI mistakenly deleted the fall 2026 final exam syllabus and all semester-long class notes. Before the user noticed, Claude admitted the error proactively. All files were successfully recovered via Dropbox. Baude reminded users to back up files before authorizing AI operations.