This task is about introducing an interface element of some kind that leads people to know:

1. New tools, for doing things like pinging and linking, are available to try in the Reply and New Discussion Tools' source modes
2. How they can turn these new tools on/off

Stories

• As someone who is logged opening the Reply Tool or New Discussion Tools' source mode for the first time after the "new tools in source" mode is made available as an opt-out setting (T276609):
  • I want to know what new functionality is available to me, so that I can decide how I might use them when drafting new comments and topics on talk pages.
  • I want to know what I need to do to turn this new functionality off so that I can regain access to the "sources mode without tools" I have been accustomed to using up until this point.

Requirements

• Designs should be created for:
• The Reply Tool on desktop and mobile
• The New Discussion Tool on desktop and mobile

Mockups

Done

• Designs are posted to the ===Requirements section above that satisfy the ===Stories and ===Requirements