Respond to a fired CloudWatch alarm end-to-end — parse alarm metadata, pull the current metric values and trends, correlate with traces and logs for the affected service, check CloudTrail for recent config / deploy changes, and rank remediation hypotheses with evidence. Trigger phrases: "alarm fired", "alarm went off", "CloudWatch alarm", "alarm triggered", "alarm in ALARM state", "investigate alarm", "alarm response", "responding to alarm", "PagerDuty alarm", "OpsGenie alarm", "alarm paging", "metric alarm fired", "composite alarm", "alarm ARN", "got paged for alarm", "alarm notification", or any request about diagnosing why a CloudWatch alarm transitioned to ALARM.
