Your incident response process is polished. PagerDuty alerts, runbooks, blameless post-mortems, action items tracked in Jira. You're great at responding to incidents.
But you're still having them. Because incident response is reactive. Incident prevention is proactive — and most teams don't have the tools for it.
The Prevention Stack
Pre-Commit: Blast Radius Analysis
Before a developer commits, show them what their change affects. Not just the files in the PR — the transitive dependencies, downstream consumers, and cross-service impacts.
Pre-Merge: Historical Risk Assessment
Before merging, check: "Have similar changes in this area caused incidents before?" Git history knows. Surface past regressions, reverts, and hotfixes in the affected code paths.