A tool is down

If a connected tool (for example Atlassian) fails three times within 15 minutes, the platform takes it out of engineers' sessions so they keep working without it, tells the workspace once (on Slack, or the alert email), and keeps checking it. When it answers again it's put back automatically, with an all-clear. The Integrations page shows a banner while it's down. If it's a sign-in problem, reconnect the integration. A delivery step already running keeps its tools until its next session.