The same 3 a.m. PagerDuty alert. Two timelines. The difference is whether your on-call engineer is reading evidence or hunting for it.
PagerDuty fires for the third time this week. Same noisy CloudWatch alarm, same dashboard hunt, same 30-minute investigation before you even know if it's real.
Radar suppresses the known noise, only pages when something actually changed, and writes the verdict before you open Slack. You go back to sleep.
New engineers can't go on-call until they've memorized 12 services, 4,000 log groups, and the right Logs Insights syntax. Every rotation needs a senior shadow.
Service map is the documentation. Trace journey is the runbook. NL search means no syntax to memorize. Junior engineers ship a clean rotation in week two.
Same RDS saturation pattern keeps biting. Same connection-pool exhaustion every release. The fix is in someone's head, not in the system.
Cluster reviews catch it weekly with confidence scores. Error watch remembers the resolution and suppresses the noise. Deploy correlation flags the release that re-introduced it.
Support escalates a customer ID. You open 6 Logs Insights tabs across 4 log groups. 25 minutes later you have a partial story.
Trace journey takes the customer ID, fans across every log group in the service, and gives you the timeline. 30 seconds. One screen. Reply to the customer.
