Preview Every Rename Before Moving Files
Renaming two hundred client documents is easy to request and surprisingly hard to undo when two names collapse into one.
Ask Claude Code to produce a proposed mapping first: current path, proposed path and reason. Use a disposable folder containing spaces, mixed capitalization and two documents that would receive the same name. Require the preview to identify collisions before any move occurs.
Review the mapping, then run the approved changes against that test folder. Check that every original has exactly one destination and that contents are unchanged. Keep the mapping as a recovery record. Once the behavior is correct, repeat the preview on the real folder; its collision set may differ. The preview is a separate artifact you can inspect, not a promise buried in a chat message.
