I feel bad that you're getting downvotes. The reason is that pretty much every modern web stack decouples the URL routing from the source code directory structure these days. It was a nice hack back in the day, but there are so many problems with it no one really does it any more.

Some frameworks (Laravel, NextJS, etc) map from the directory structure to routes, but that's just a mapping rather than actually exposing the directories on the server. You can have /src/agents accessible as /agents. Or you could have /alice/bob/agents accessible through /agents. It's all just build tooling and web server config at the end of the day.

That's my point. Having your code in `/src` doesn't mean some of that code doesn't still have routing at `example.com/agents`. It doesn't have to be a real directory.

A `.agents` directory (or routing pretending to be one) is nice because you are fairly unlikely to ever have user-facing `example.com/.agents` as a URL.