Urgh. Replied to this earlier, but I guess I only got as far as the preview and then closed the tab or something. SSL errors in Chrome are making this site very annoying to use.

Anyway, I probably wouldn't recommend JSON::Schema at the moment. It's based on a pretty old version of the JSON schema specification, and I don't plan on updating it until the specification stabilises. And when that does happen, JSON::Schema is likely to become a wrapper around JSON::Schema::AsType which is a frickin' awesome idea, and how I'd be implementing JSON Schema now if someone hadn't beaten me to it.

Right now, JSON::Schema::AsType is a little inefficient in how it uses Type::Tiny, and could be made quite a bit faster. I plan on contributing some improvements in this area once the specification is more stable. It may already be faster than JSON::Schema though — I haven't benchmarked it.