Reflex vs PagerDuty: alerting vs fixing
The Reflex Team7 min6 May 2026
PagerDuty is the industry default for incident routing. Escalation policies, on-call schedules, and mobile apps are excellent — when a human must respond.
Reflex addresses a different failure mode: repeatable infrastructure incidents that do not need a human at 3am. PHP-FPM exhaustion, disk trajectory, queue stalls, deploy regressions.
The loop
| Step | PagerDuty | Reflex |
|---|---|---|
| Detect | Via integrations | reflexd + Brain |
| Notify | Pages on-call | Optional; often unnecessary |
| Diagnose | Human | Brain + playbooks |
| Fix | Human | Automated with audit trail |
When to keep PagerDuty
- Complex on-call rotations across regions
- Compliance requirements for escalation records
- Incidents that always need human judgement (data corruption, security)
When Reflex reduces pages
- Same incident class monthly (FPM restart, disk cleanup)
- Small team without 24/7 SRE
- Revenue-impact outages where minutes matter