I have been working on a developer first, read-only first, safety first, Cloud Cost Analyzer. I focus on analyzing cloud infra for waste. It grew out of my time at AWS and then consulting, spelunking through AWS, Azure, (GCP soon) accounts, finding real waste infrastructure. Its primary mode of operation is a rust CLI that you the developer, can run on your workstation, github action, gitlab ci, jenkins, etc and create an actionable report / test that can be used to control costs while maintaining performance and never exposing your credentials, access tokens, etc.

You would be surprised at how many over / suboptimally-provisioned dbs, idle resources, forgotten EBS snapshots, outdated / previous-gen instance types, and vestigial networking that leads to nowhere I find.

If you want to check it out https://cca.dragonfractal.com