Language Service Plugins with Proxies is planned for TypeScript 2.3. This feature gives the capability to extend TypeScript tsserver completion, definition, diagnostics, etc with custom plugins. Today it exists 2 plugins :

• Angular2 language service which provide completion, definition, diagnostics for @Component/template
• tslint language service which provides diagnostics, codefix by consuming tslint.

Here the step to enable tslint:

• activate tsserver-plugins if you are consuming TypeScript < 2.2.1.

• the node_modules of your TypeScript Runtime must contain tslint and tslint language service like this node_modules. If you are consuming last version of embedded TypeScript, it will work directly.

• declare your tsconfig.json like this:

{
  "compilerOptions": {
    "plugins": [
            { "name": "tslint-language-service"}
        ]
  }
}

After you will benefit with tslint:

• when you are typing in the editor and benefit too with quick fixes.
• when you compile TypeScript

Here a demo with tslint: