Brief by Slack DM, not just email

Most managers in our early-access group said the same thing: "I love the brief, but my inbox is where things go to die." So we shipped Slack DM delivery this week.

Open /me/notifications and pick email, Slack DM, or both. The Slack DM carries the full brief — same content as email — because a 1:1 DM to you has the same privacy posture as a 1:1 email to you. It's only when content might land in a public or shared channel that we'd hold back; DMs are scoped to one human.

Two failure modes we explicitly designed for. First: if your Slack workspace isn't mapped to your Sonar account (maybe IT installed Sonar but you signed up with a different email), we fall back to email instead of silently dropping the brief. You always get the brief somewhere. Second: brief content goes through a Slack-mrkdwn escape pass before it ever leaves our worker, so a hallucinated link or accidentally-formatted phrase can't accidentally @-mention a channel.

If you'd like to opt out without losing the brief, /sonar unsubscribe in Slack stops the DMs but keeps the email path running. Killswitch + pause still work the same way they always have.