When to use it
Use it when you get feedback that's a bit vague. Thank them, then ask what “better” would look like. You show you can take feedback, and you leave with a clear target you can actually hit.
Example
Manager: “Your updates could be stronger.”
You: “Thanks for telling me. What would ‘better’ look like to you?”
Manager: “Lead with the decision you need.”
In an email or Slack message
Follow up in writing: “Thanks for the feedback on my updates. To make sure I've got it: lead with the decision I need, then details. I'll try that this week.”