[cube2222]

Not sure if with shift-left you mean specifically shifting left infracost and FinOps or general Infrastructure-as-Code shift left.

In case it's the latter, I can recommend Spacelift[0] - a specialized CI/CD tool for IaC and supports all the tools you've mentioned. It basically helps you build policies and orchestrate your infra (don't want to go into too much detail in this comment) to scale it to bigger teams and setups. Policies to enforce tagging would indeed be a good example.

It integrates with infracost too, but obviously just for the tools infracost works with, no CloudFormation.

Disclaimer: Work at Spacelift so obviously take the recommendation with a grain of salt, but I do legitimately think it's a great tool.

[0]: https://spacelift.io

P.S. Congrats on the Show HN Infracost team!