Diagramming tool with a validation engine that help software Engineers create architecture diagrams?

There are many diagramming tools out there but all of them are abstract. What if you could leverage a tool like Mermaid to have a validation engine that supports multiple cloud architectures like AWS, GCP, Azure. Would it make the life of software engineers/ architects easier. This would be more efficient than asking a LLM to validate your diagram.

Eg: This tool will be "intelligent" enough to know that subnets exists inside a VPC. You cannot route data from the internet to a resource in a private subnet without a NAT gateway.

This tool will be useful for software engineers just starting out as well as experts who might miss small but critical details. I am planning to extend this later with integrations to LLM to generate and format these diagrams with minimal input from the users

In summary the initial version would be an extension of Mermaid, that has been tweaked to specifically draw architecture diagrams.

Have any of you got any experience with such a tool