If you fix it (the responseSchema is defined inside schema by mistake) and resubmit it against the 2.0_fixes branches, I'd be more than happy to merge it.

Please note that I just pushed a few changes to the schema object in that branch, so make sure to pull those.

If I understand right, when using "type": "file", there is no much point in including anything else in this schema definition. So maybe something like

"responseSchema": {
    "anyOf": [ {
            "$ref": "#/definitions/schema"
         }, {
            "type": "object"
            "properties": {
                "type": {
                    "type": "string",
                    "enum": [ "file" ]
                }
            }
        }
    ]
}

would be shorter, easier maintainable and allow less nonsense? (I'm not an expert on JSON schema, I find the spec unreadable, and have no tools here to try if this works. I hope the intention is clear.)

Thanks, but due to code drift, had to implement it differently.