It is ambiguous only if you think it can be a completely useless format. If you decide to use it, chances are you considered it useful, and the only useful way this can parse is as a number, otherwise it would't be able to represent numbers, booleans and null. I'd say it parses pretty much as expected, and as such, contrary to other comments, you don't have to go back to the docs every so often.

Of course you have to get the information from somewhere the first time you learn something. What's the problem with that?

The problem is that this is supposed to be a more-easily-readable form of JSON, but it requires consulting the docs to understand the meaning of something which is completely unambiguous in regular JSON.

> Of course you have to get the information from somewhere the first time you learn something. What's the problem with that?

The first time, and the second time if you haven't looked at it in a month, and a third time a month after that. And so on.