Control Slack bot engagement with mention-only replies by default

The Slack interface now replies only when mentioned, reducing channel noise and improving operator control by default. This change helps teams run bots in busy channels without overwhelming users. If your workflows rely on the previous behavior (reply to all messages), you can retain it by setting the new parameter reply_to_mentions_only to False.

Details

New default: replies only to @mentions
Configurable with reply_to_mentions_only (set False to preserve prior behavior)
Reduces noise and improves signal in high-traffic channels

Who this is for: Teams running Slack-based assistants in large or shared channels who want stronger control over bot interactions and a cleaner user experience.