Issue with how responses are defined

In your json, you have responses simply as extending generic response + description, which is incorrect because response has to have same command value as request. So it should be marked in same was as responses are, ie with constant enum for command. What I would propose is to fix those to this:

"LaunchResponse": {
		"allOf": [ { "$ref": "#/definitions/Response" }, {
			"type": "object",
			"description": "Response to 'launch' request. This is just an acknowledgement, so no body field is required.",
			"properties": {
				"command": {
					"type": "string",
					"enum": [ "launch" ]
				}
			},
			"required": [ "command"  ]
		}]
	}

No file or test is named in the issue. Start by locating the JSON protocol definitions and the response schemas, then compare their command properties with the request schemas; done means each response constrains command to the matching constant enum and validation covers the updated definitions.