✓Data sync checks that catch missing records in 5 minutes
✓Journey health checks that reveal enrollment decay
✓The deliverability metric that 90% of teams measure wrong
✓Attribution integrity checks most teams never run
✓A scored rubric to grade your stack health A through F
✓Frequency cap checks for invisible audience suppression
✓Decision split audits that find broken routing logic
✓Automation dependency maps to prevent silent breakage