OneDrive Scheduled-Reports Chrome Extension

THE PROBLEM

Daily reports needed files pulled from OneDrive, repackaged, and uploaded somewhere else. The third-party tools that did this needed broad OneDrive scopes - which IT wasn't comfortable handing out - or a full Microsoft Graph app registration with credentials sitting on a server.

THE APPROACH

A Chrome extension that runs inside the user's already-authenticated OneDrive session. On a schedule, it downloads the right files, builds the report locally in the browser, and uploads it back - no third-party app, no extra permissions, nothing leaving the browser. IT signed off in an afternoon.