It's 03:14. Checkout p99 has been climbing for nine minutes. Retries pile up, the queue backs into payments, and the first thing anyone hears about it is a customer tweet.
By the time someone opens a dashboard, greps the logs and finds the one deploy that did it, the incident is twenty minutes old.
Pulsegrid collapses that window. Every request is measured as it lands, every service has an SLO, and the moment a line crosses it the timeline reacts — breach detected → context attached → on-call paged — in under ten seconds.