3 items
Delete multiple visible sources from the current NotebookLM notebook. NotebookLM makes it easy to add many sources through web search, research workflows, and bulk imports, but cleaning up those sources later can be slow. NotebookLM Source Bulk Delete adds a small local toolbar to the source panel so you can select sources, review them, and delete them in one confirmed batch. Github: https://github.com/donozhang1992/notebooklm_source_batch_delete
rating_count is the Chrome Web Store ratings count, not a written-review count.