That wasn't the most even-keeled response, and it's past the edit window. What I mean to say is that I've never seen anything but a small codebase that couldn't

That wasn't the most even-keeled response, and it's past the edit window. What I mean to say is that I've never seen anything but a small codebase that couldn't use some in-code explication. Clear code provides a clear "how". Good test coverage can act as documentation of the proper behavior and help prevent regressions. But I don't see how it follows that clean code makes the location of each implemented feature obvious. It doesn't seem like it would be inherently true.