Microsoft 365 Copilot Conversation Deleter

A Tampermonkey userscript that adds a floating button to delete the currently active Copilot conversation in Outlook. Optimized for the PWA structure and multi-language support (Japanese/English).

Features

• Draggable & Persistent UI:
  • The floating container can be moved anywhere on the screen (grab from the background or labels).
  • Position is automatically saved to localStorage and persists across sessions.
• "Next Up" Real-time Indicator:
  • Displays the title of the conversation that will be auto-selected after specialized deletion.
  • Updates in real-time as you navigate your sidebar.
  • Correctly handles dividers and nested list structures for high reliability.
• Auto-Navigation (Post-Deletion):
  • After a successful deletion, the script automatically focuses and clicks the identified "Next Up" chat.
  • Includes a retry strategy to ensure the new conversation actually loads in the main area.
• "Deleting..." State: Provides visual feedback on the button and disables interaction until the deletion process is fully confirmed and the item removed.
• Version Tracking: Mouseover the button or labels to see the current script version in a tooltip.

How to Use

1. Install the script in Tampermonkey.
2. Navigate to a Copilot conversation in Outlook.
3. Observe the "Next Up" label to see which chat is queued for the next action.
4. Use the 🔍 Test Selectors (Dry) button to verify the script can find the "More" button and correct menu items.
5. Uncheck Dry Run and click 🗑️ Delete Chat (REAL).
6. The script will:
   • Match the sidebar title with the confirmation dialog.
   • Execute the deletion.
   • Transition the UI to a waiting state.
   • Automatically navigate to the next conversation once the previous one is gone.

Local Files

• UserScript
• Walkthrough & Demos
• AGENTS.md (Technical Notes)