New session transcript sharing feature that occasionally prompts users: "Can Anthropic look at your session transcript to help us improve Claude Code?" with three options: Yes, No, and "Don't ask again." A frustration-triggered variant also exists. Selecting "Don't ask again" permanently suppresses the prompt via a transcriptShareDismissed config flag.
Evidence
Transcript sharing dialog (search for "Can Anthropic look at your session transcript", "Don't ask again")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.