CloudWatch Alarm State Dashboard.
Roll-up of every CloudWatch alarm in the account, sorted by state and grouped into Infrastructure / Application / Billing sub-categories. Sparklines on alarm rows show the last hour of metric history. Click any row to see threshold, state-reason text, and time in state.
Single column
Full-width pane — typical for an oncall dashboard. Three counters across the top (in alarm / OK / insufficient data), then per-category sections with sparklines on the alarm rows and an OK roll-up at the foot of each section.
Two columns
Same pane embedded twice — multi-environment side-by-side. Each pane reads its own container width and adapts independently.
Production AWS account.
Staging AWS account.