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Deleting a task thread removes it permanently. This can’t be undone, so Chief always asks you to confirm first.

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Delete a task thread

Chief: delete a task — the Task actions menu with Delete this task thread
  1. Open the task. In the thread header, click the ⋯ (three-dot) Task actions menu.
  2. Choose Delete this task thread (the red trash item at the bottom of the menu).
  3. A confirmation dialog opens, titled Delete “[task name]”?
  4. Read the warning, then click Yes, Delete Task Thread. To back out, click Cancel or the X.
Chief: delete a task — the confirmation dialog
Important: If the task is shared, deleting it removes it permanently for all users with access to the project — not just you. The dialog spells this out before you confirm.

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Deleting a single prompt instead of the whole task

Chief: delete a single prompt — the trash button on a prompt
If you only want to remove one prompt-and-answer pair (available in Advanced Mode), hover over the prompt and use its delete button instead. Its tooltip explains: “Remove this prompt + response from task thread view. (The LLM will still remember it.)” — so Chief keeps the context even though it leaves your view.

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FAQ

You can’t delete a task while it’s still generating a response. The dialog shows: “Cannot delete this task thread while a response is being generated. Please wait for the response to complete.” Wait for the answer to finish (or click Stop Generating), then delete — you’ll see a Delete later button in the meantime.
No. Deletion is permanent and can’t be recovered. If you’re unsure, rename or keep the task rather than deleting it.
If you see “Failed to delete task thread. Please try again,” it’s usually a temporary connection issue. Check the offline banner at the top of the screen, then try again.