rename-files-date-prefix

What problem does it solve? Document libraries accumulate inconsistently named files that are hard to sort chronologically. This Skill bulk-renames every file in a SharePoint library (including subfolders) to prefix the filename with its created date in yyMMdd format, with a preview step so nothing changes without approval. ## Core Features & Use Cases - Recursive batch renaming: Processes all files in a library and its subfolders using a CAML query filtered to files only, never folders. - Preview-before-commit: Shows a table of current names, proposed new names, folders, and statuses, then renames only after user confirmation. - Collision and idempotency handling: Skips files already prefixed with six digits and a hyphen, skips name collisions instead of overwriting, and is safe to re-run after an interrupted batch. - Use Case: A team inherits a messy project library with hundreds of files. Run the Skill to get "251203-Status Report.pdf" style names across every subfolder, review the preview, and confirm once. ## Quick Start Ask Copilot in SharePoint to prefix all files in this document library with their created date.