version_6.raml

#%RAML 1.0

title: Todos Service
baseUri: http://todosapp.com/api/version_6
mediaType: application/json+ld

types:
  URI: string
  Operation:
    method:
      enum: [ GET, POST, PUT, DELETE, PATCH, HEAD, OPTIONS ]
    expects: Link
    returns: Link
  Link:
    properties:
      @id: URI
      operations: Operation[]
  Context:
    properties:
      @vocab: URI
  Class:
    @id: URI
    operations: Operation[]
    properties:
      @id: URI
      domain: URI
      range: URI
    links: Link[]
  Resource:
    @id: URI
    @type: URI
  ApiDocumentation:
    @id: URI
    @type: URI
    classes: Class[]
    entryPoint: URI

/spec:
  get:
    description: API specification
    200:
      body: ApiDocumentation
/:
  get:
    description: Entry point for the application
    responses:
      200:
        body: Resource

Just wondering if/how did you get the RAML parser to be happy with the @ prefix to property names?