Not by itself, but an agent using Reladraw could. The real smarts would be the agent, and Reladraw just gives it a language and tool to express itself clearly and efficiently.

You could take someone's explanation of their architecture, give it to an agent, and ask it to render it as a diagram using Graphviz, Mermaid, Draw.io, etc. The problem is that some of those don't give the agent control over what the diagram looks like (Graphviz, Mermaid) and others are inefficient and fiddly for an agent to manipulate (Draw.io). Reladraw aims to be easy for an agent (or human) to edit (like Mermaid) but have the expressiveness and positioning like you'd be able to achieve with a carefully crafted Draw.io diagram.