Acceptance criteria

• If a user has the 'Failed mention' notification preference enabled and they type a nonexistent username in an edit summary, they should receive a failed mention notification.
• If a user has the 'Successful mention' notification preference enabled and they type a valid username in an edit summary, they should receive a successful mention notification
• As only the first 5 usernames in an edit summary should send a mention, the 6th and subsequent usernames should not trigger fail/success mention notifications
• The existing bundling logic for success/fail notifications should be respected
• The existing notification icons and copy should be used (screenshot and specification below)
• The notification should link to the diff page of the mention
• These notifications do not trigger emails

Existing success/failure notifications

Basic information

• Purpose of the notification: Let a user know when they have sent a failed or successful mention in an edit summary
• Notification name: Edit summary mention success/failure
• What triggers notification?: Linking to their username in an edit summary (e.g. Made an edit that [[User:Apples]] and I discussed on the talk page.)
• "Notice" or "Alert"?: Alert
• Notification type (standard, bundled, expandable bundle): Expandable bundled

Wording

For success:

• Header: Your mention of username was sent.
• Body: n/a

For failure:

• Header: Your mention of username was not sent because the user was not found.
• Body: n/a

Links

• Primary link target: Diff page of the edit
• #1 secondary link target: Page where edit was page
• #1 secondary link label: Pagename where edit was made