Tool Rejection Feedback

What: Users can now provide feedback text when rejecting a tool use, telling Claude what to do differently.

How to use: When Claude requests permission to use a tool and you select "No", you'll see an input field with the placeholder "Tell Claude what to do differently". Your feedback is sent to Claude to guide its next action.

Details:

• Input field appears in tool permission prompts when rejecting
• Feedback is optional - you can still reject without providing a message
• Claude receives your feedback with context: "The user doesn't want to proceed with this tool use... To tell you how to proceed, the user said: [your message]"
• Telemetry tracks whether feedback was provided via new hasFeedback field
• Evidence: FKA constant at line 474090, FJQ() component at line 263860, kd() telemetry function at line 352977