One model version string, bumped in one shared variable. The vendor shipped a new model; you point your AI platform at it and go back to bed.

Then terraform plan calmly says it will destroy and recreate every tenant's Bedrock application inference profile. Every tenant. One string. Type a tired 3 a.m. yes and every live profile is gone in one apply.

That scene is the pattern, not a confession.

The multiplication

An r/Terraform thread described a module that loops over tenants with for_each , building each key from tenant, model and tag set — something like acme-sonnet4-prod-tags .…