Mission Control

Incident Log

Reliability Through Postmortems

Selected incident reports demonstrate root-cause analysis, pragmatic fixes, and prevention-first engineering habits.

Control Layer

Resolved Incidents

Structured summaries of what failed, why it mattered, and how reliability improved after remediation.

INC-003: CI pipeline failures due to environment drift

Resolved

Build Success Rate

Before

63%

After

96%

What Broke
Builds passed locally but failed unpredictably in CI.
Why It Mattered
Release cadence slowed and confidence in delivery dropped.
Root Cause
Toolchain version mismatch across local and CI runners.
Fix
Containerized the build environment and pinned dependencies.
Prevention
Added environment parity checks before merge.

INC-006: Latency spike during high-traffic login window

Monitoring

Auth API p95

Before

890ms

After

270ms

What Broke
Authentication API crossed response-time SLO during peak hour.
Why It Mattered
User onboarding dropped when login became unreliable.
Root Cause
An uncached permissions lookup was called on every request.
Fix
Added short-lived cache and query optimization with indexes.
Prevention
Introduced latency budget alerts per endpoint.

INC-009: Missed alerts from webhook retry storm

Closed

Duplicate Alert Volume

Before

4.6x baseline

After

1.2x baseline

What Broke
Duplicate retries overwhelmed notification channels.
Why It Mattered
Real incidents were buried under noisy alerts.
Root Cause
No idempotency key handling in webhook processor.
Fix
Implemented idempotency keys and backoff-aware queuing.
Prevention
Added chaos test for duplicate-delivery scenarios.